From de7d6c3eebbe6da47c07f048ca689e10f194b842 Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Wed, 8 Oct 2014 01:55:16 -0700 Subject: clk: rockchip: fix parent for spdif_8ch_frac on rk3288 The parent should be spdif_8ch_pre not spdif_8ch_src, which doesn't exist and looks to be a typo. The TRM also confirms this. Signed-off-by: Sonny Rao Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 23278291da44..e41ae1f4cd29 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -325,7 +325,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NOMUX(0, "spdif_8ch_pre", "spdif_src", 0, RK3288_CLKSEL_CON(40), 0, 7, DFLAGS, RK3288_CLKGATE_CON(4), 7, GFLAGS), - COMPOSITE_FRAC(0, "spdif_8ch_frac", "spdif_8ch_src", 0, + COMPOSITE_FRAC(0, "spdif_8ch_frac", "spdif_8ch_pre", 0, RK3288_CLKSEL_CON(41), 0, RK3288_CLKGATE_CON(4), 8, GFLAGS), COMPOSITE_NODIV(SCLK_SPDIF8CH, "sclk_spdif_8ch", mux_spdif_8ch_p, 0, -- cgit v1.2.2 From 61e309f322f264917e5dcbd7ea773df1db53629a Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Mon, 6 Oct 2014 10:15:27 -0700 Subject: clk: rockchip: Add CLK_SET_RATE_PARENT to aclk_cpu_pre We'd like to be able to call clk_set_rate() on aclk_cpu (a gate) at bootup. In order for this to have any effect we need its parent (aclk_cpu_pre) to percolate the rate change to _its_ parent (aclk_cpu_src). Add CLK_SET_RATE_PARENT to make this happen. Signed-off-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index e41ae1f4cd29..4670bd8335a1 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -279,7 +279,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKGATE_CON(0), 11, GFLAGS), COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, 0, RK3288_CLKSEL_CON(1), 15, 1, MFLAGS, 3, 5, DFLAGS), - DIV(0, "aclk_cpu_pre", "aclk_cpu_src", 0, + DIV(0, "aclk_cpu_pre", "aclk_cpu_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(1), 0, 3, DFLAGS), GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", 0, RK3288_CLKGATE_CON(0), 3, GFLAGS), -- cgit v1.2.2 From cd9b4609a5621021f6c10ac09e1ddaabc677a814 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Thu, 9 Oct 2014 21:50:29 -0700 Subject: clk: rockchip: add 400MHz and 500MHz for rk3288 clock rate This patch add 400MHz and 500MHz to clock rate table for rk3288. Signed-off-by: Kever Yang Reviewed-by: Doug Anderson Tested-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 4670bd8335a1..c3706431ed10 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -86,8 +86,10 @@ struct rockchip_pll_rate_table rk3288_pll_rates[] = { RK3066_PLL_RATE( 594000000, 2, 198, 4), RK3066_PLL_RATE( 552000000, 1, 46, 2), RK3066_PLL_RATE( 504000000, 1, 84, 4), + RK3066_PLL_RATE( 500000000, 3, 125, 2), RK3066_PLL_RATE( 456000000, 1, 76, 4), RK3066_PLL_RATE( 408000000, 1, 68, 4), + RK3066_PLL_RATE( 400000000, 3, 100, 2), RK3066_PLL_RATE( 384000000, 2, 128, 4), RK3066_PLL_RATE( 360000000, 1, 60, 4), RK3066_PLL_RATE( 312000000, 1, 52, 4), -- cgit v1.2.2 From 8f06f5d392b3fbd58a5d7e00b047b6ee08c6d9b0 Mon Sep 17 00:00:00 2001 From: Jianqun Date: Mon, 20 Oct 2014 17:55:03 +0800 Subject: clk: rockchip: rk3288: removing the CLK_SET_RATE_PARENT from i2s_clkout Removing the CLK_SET_RATE_PARENT from i2s_clkout, to limit i2s0_clkout to select between its two parent without being able influence the core i2s clock. Tested on rk3288 board, suggested by Heiko. Signed-off-by: Jianqun Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index c3706431ed10..d417bceac9e4 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -307,7 +307,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKGATE_CON(4), 2, GFLAGS), MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(4), 8, 2, MFLAGS), - COMPOSITE_NODIV(0, "i2s0_clkout", mux_i2s_clkout_p, CLK_SET_RATE_PARENT, + COMPOSITE_NODIV(0, "i2s0_clkout", mux_i2s_clkout_p, 0, RK3288_CLKSEL_CON(4), 12, 1, MFLAGS, RK3288_CLKGATE_CON(4), 0, GFLAGS), GATE(SCLK_I2S0, "sclk_i2s0", "i2s_pre", CLK_SET_RATE_PARENT, -- cgit v1.2.2 From 89c107a88de955eee2e1ca0c8d9f10524f5f68cc Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Thu, 16 Oct 2014 15:46:36 -0700 Subject: clk: rockchip: add npll to source of sclk_gpu The possible sources for the rk3288-gpu-clock also include the npll, making it the same list of sources as for uart0. This patch make a common source for uart0 pll src and sclk_gpu, so that gpu can get its clock from npll. Signed-off-by: Kever Yang Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index d417bceac9e4..4cef77b5006d 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -175,14 +175,14 @@ PNAME(mux_aclk_cpu_src_p) = { "cpll_aclk_cpu", "gpll_aclk_cpu" }; PNAME(mux_pll_src_cpll_gpll_p) = { "cpll", "gpll" }; PNAME(mux_pll_src_npll_cpll_gpll_p) = { "npll", "cpll", "gpll" }; PNAME(mux_pll_src_cpll_gpll_npll_p) = { "cpll", "gpll", "npll" }; -PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "usb480m" }; +PNAME(mux_pll_src_cpll_gpll_usb480m_p) = { "cpll", "gpll", "usbphy480m_src" }; +PNAME(mux_pll_src_cpll_gll_usb_npll_p) = { "cpll", "gpll", "usbphy480m_src", "npll" }; PNAME(mux_mmc_src_p) = { "cpll", "gpll", "xin24m", "xin24m" }; PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" }; PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" }; PNAME(mux_spdif_p) = { "spdif_pre", "spdif_frac", "xin12m" }; PNAME(mux_spdif_8ch_p) = { "spdif_8ch_pre", "spdif_8ch_frac", "xin12m" }; -PNAME(mux_uart0_pll_p) = { "cpll", "gpll", "usbphy_480m_src", "npll" }; PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" }; PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" }; @@ -442,7 +442,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKSEL_CON(33), 0, 5, DFLAGS, RK3288_CLKGATE_CON(5), 8, GFLAGS), - COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_cpll_gpll_usb480m_p, 0, + COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_cpll_gll_usb_npll_p, 0, RK3288_CLKSEL_CON(34), 6, 2, MFLAGS, 0, 5, DFLAGS, RK3288_CLKGATE_CON(5), 7, GFLAGS), @@ -519,7 +519,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKSEL_CON(38), 15, 1, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(5), 6, GFLAGS), - COMPOSITE(0, "uart0_src", mux_uart0_pll_p, 0, + COMPOSITE(0, "uart0_src", mux_pll_src_cpll_gll_usb_npll_p, 0, RK3288_CLKSEL_CON(13), 13, 2, MFLAGS, 0, 7, DFLAGS, RK3288_CLKGATE_CON(1), 8, GFLAGS), COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", 0, -- cgit v1.2.2 From e94f8cb32d47b157b2af1906eb965290e89ee3fe Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Mon, 20 Oct 2014 22:10:26 +0800 Subject: clk: sunxi: make factors clock mux mask configurable Some of the factors-style clocks on the A80 have different widths for the mux values in the registers. Add a .muxmask field to clk_factors_config to make it configurable. Passing a bitmask instead of a width parameter will allow reuse in case we support table-based muxes in the future. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- drivers/clk/sunxi/clk-factors.c | 2 +- drivers/clk/sunxi/clk-factors.h | 3 +-- drivers/clk/sunxi/clk-mod0.c | 1 + drivers/clk/sunxi/clk-sun8i-mbus.c | 1 + drivers/clk/sunxi/clk-sunxi.c | 1 + 5 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index f83ba097126c..5521e866fa5e 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -224,7 +224,7 @@ struct clk * __init sunxi_factors_register(struct device_node *node, /* set up gate properties */ mux->reg = reg; mux->shift = data->mux; - mux->mask = SUNXI_FACTORS_MUX_MASK; + mux->mask = data->muxmask; mux->lock = factors->lock; mux_hw = &mux->hw; } diff --git a/drivers/clk/sunxi/clk-factors.h b/drivers/clk/sunxi/clk-factors.h index 9913840018d3..912238fde132 100644 --- a/drivers/clk/sunxi/clk-factors.h +++ b/drivers/clk/sunxi/clk-factors.h @@ -7,8 +7,6 @@ #define SUNXI_FACTORS_NOT_APPLICABLE (0) -#define SUNXI_FACTORS_MUX_MASK 0x3 - struct clk_factors_config { u8 nshift; u8 nwidth; @@ -24,6 +22,7 @@ struct clk_factors_config { struct factors_data { int enable; int mux; + int muxmask; struct clk_factors_config *table; void (*getter) (u32 *rate, u32 parent_rate, u8 *n, u8 *k, u8 *m, u8 *p); const char *name; diff --git a/drivers/clk/sunxi/clk-mod0.c b/drivers/clk/sunxi/clk-mod0.c index 4a563850ee6e..da0524eaee94 100644 --- a/drivers/clk/sunxi/clk-mod0.c +++ b/drivers/clk/sunxi/clk-mod0.c @@ -70,6 +70,7 @@ static struct clk_factors_config sun4i_a10_mod0_config = { static const struct factors_data sun4i_a10_mod0_data __initconst = { .enable = 31, .mux = 24, + .muxmask = BIT(1) | BIT(0), .table = &sun4i_a10_mod0_config, .getter = sun4i_a10_get_mod0_factors, }; diff --git a/drivers/clk/sunxi/clk-sun8i-mbus.c b/drivers/clk/sunxi/clk-sun8i-mbus.c index 8e49b44cee41..ef49786eefd3 100644 --- a/drivers/clk/sunxi/clk-sun8i-mbus.c +++ b/drivers/clk/sunxi/clk-sun8i-mbus.c @@ -60,6 +60,7 @@ static struct clk_factors_config sun8i_a23_mbus_config = { static const struct factors_data sun8i_a23_mbus_data __initconst = { .enable = 31, .mux = 24, + .muxmask = BIT(1) | BIT(0), .table = &sun8i_a23_mbus_config, .getter = sun8i_a23_get_mbus_factors, }; diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index d5dc951264ca..636b8d772d4a 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -514,6 +514,7 @@ static const struct factors_data sun4i_apb1_data __initconst = { static const struct factors_data sun7i_a20_out_data __initconst = { .enable = 31, .mux = 24, + .muxmask = BIT(1) | BIT(0), .table = &sun7i_a20_out_config, .getter = sun7i_a20_get_out_factors, }; -- cgit v1.2.2 From 3b2bd70f03c75d37de791b65d574a31d1e2507b0 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Mon, 20 Oct 2014 22:10:27 +0800 Subject: clk: sunxi: Add support for A80 basic bus clocks The A80 SoC has 12 PLL clocks, 3 AHB clocks, 2 APB clocks, and a new "GT" bus, which I assume is some kind of data bus connecting the processor cores, memory and various busses. Also there is a bus clock for a ARM CCI400 module. As far as I can tell, the GT bus and CCI400 bus clock must be protected. This patch adds driver support for peripheral related PLLs and bus clocks on the A80. The GT and CCI400 clocks are added as well as these 2 along with the PLLs they are clocked from must not be disabled. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/clock/sunxi.txt | 5 + drivers/clk/sunxi/Makefile | 1 + drivers/clk/sunxi/clk-sun9i-core.c | 271 ++++++++++++++++++++++ 3 files changed, 277 insertions(+) create mode 100644 drivers/clk/sunxi/clk-sun9i-core.c diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index ed116df9c3e7..7f1c486691e0 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -10,14 +10,17 @@ Required properties: "allwinner,sun4i-a10-pll1-clk" - for the main PLL clock and PLL4 "allwinner,sun6i-a31-pll1-clk" - for the main PLL clock on A31 "allwinner,sun8i-a23-pll1-clk" - for the main PLL clock on A23 + "allwinner,sun9i-a80-pll4-clk" - for the peripheral PLLs on A80 "allwinner,sun4i-a10-pll5-clk" - for the PLL5 clock "allwinner,sun4i-a10-pll6-clk" - for the PLL6 clock "allwinner,sun6i-a31-pll6-clk" - for the PLL6 clock on A31 + "allwinner,sun9i-a80-gt-clk" - for the GT bus clock on A80 "allwinner,sun4i-a10-cpu-clk" - for the CPU multiplexer clock "allwinner,sun4i-a10-axi-clk" - for the AXI clock "allwinner,sun8i-a23-axi-clk" - for the AXI clock on A23 "allwinner,sun4i-a10-axi-gates-clk" - for the AXI gates "allwinner,sun4i-a10-ahb-clk" - for the AHB clock + "allwinner,sun9i-a80-ahb-clk" - for the AHB bus clocks on A80 "allwinner,sun4i-a10-ahb-gates-clk" - for the AHB gates on A10 "allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13 "allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s @@ -29,6 +32,7 @@ Required properties: "allwinner,sun4i-a10-apb0-clk" - for the APB0 clock "allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31 "allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23 + "allwinner,sun9i-a80-apb0-clk" - for the APB0 bus clock on A80 "allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10 "allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13 "allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s @@ -36,6 +40,7 @@ Required properties: "allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20 "allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23 "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock + "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80 "allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing "allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10 "allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13 diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile index 7ddc2b553846..a66953c0f430 100644 --- a/drivers/clk/sunxi/Makefile +++ b/drivers/clk/sunxi/Makefile @@ -7,6 +7,7 @@ obj-y += clk-a10-hosc.o obj-y += clk-a20-gmac.o obj-y += clk-mod0.o obj-y += clk-sun8i-mbus.o +obj-y += clk-sun9i-core.o obj-$(CONFIG_MFD_SUN6I_PRCM) += \ clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o \ diff --git a/drivers/clk/sunxi/clk-sun9i-core.c b/drivers/clk/sunxi/clk-sun9i-core.c new file mode 100644 index 000000000000..3cb9036d91bb --- /dev/null +++ b/drivers/clk/sunxi/clk-sun9i-core.c @@ -0,0 +1,271 @@ +/* + * Copyright 2014 Chen-Yu Tsai + * + * Chen-Yu Tsai + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include + +#include "clk-factors.h" + + +/** + * sun9i_a80_get_pll4_factors() - calculates n, p, m factors for PLL1 + * PLL4 rate is calculated as follows + * rate = (parent_rate * n >> p) / (m + 1); + * parent_rate is always 24Mhz + * + * p and m are named div1 and div2 in Allwinner's SDK + */ + +static void sun9i_a80_get_pll4_factors(u32 *freq, u32 parent_rate, + u8 *n, u8 *k, u8 *m, u8 *p) +{ + int div; + + /* Normalize value to a 6M multiple */ + div = DIV_ROUND_UP(*freq, 6000000); + + /* divs above 256 cannot be odd */ + if (div > 256) + div = round_up(div, 2); + + /* divs above 512 must be a multiple of 4 */ + if (div > 512) + div = round_up(div, 4); + + *freq = 6000000 * div; + + /* we were called to round the frequency, we can now return */ + if (n == NULL) + return; + + /* p will be 1 for divs under 512 */ + if (div < 512) + *p = 1; + else + *p = 0; + + /* m will be 1 if div is odd */ + if (div & 1) + *m = 1; + else + *m = 0; + + /* calculate a suitable n based on m and p */ + *n = div / (*p + 1) / (*m + 1); +} + +static struct clk_factors_config sun9i_a80_pll4_config = { + .mshift = 18, + .mwidth = 1, + .nshift = 8, + .nwidth = 8, + .pshift = 16, + .pwidth = 1, +}; + +static const struct factors_data sun9i_a80_pll4_data __initconst = { + .enable = 31, + .table = &sun9i_a80_pll4_config, + .getter = sun9i_a80_get_pll4_factors, +}; + +static DEFINE_SPINLOCK(sun9i_a80_pll4_lock); + +static void __init sun9i_a80_pll4_setup(struct device_node *node) +{ + sunxi_factors_register(node, &sun9i_a80_pll4_data, &sun9i_a80_pll4_lock); +} +CLK_OF_DECLARE(sun9i_a80_pll4, "allwinner,sun9i-a80-pll4-clk", sun9i_a80_pll4_setup); + + +/** + * sun9i_a80_get_gt_factors() - calculates m factor for GT + * GT rate is calculated as follows + * rate = parent_rate / (m + 1); + */ + +static void sun9i_a80_get_gt_factors(u32 *freq, u32 parent_rate, + u8 *n, u8 *k, u8 *m, u8 *p) +{ + u32 div; + + if (parent_rate < *freq) + *freq = parent_rate; + + div = DIV_ROUND_UP(parent_rate, *freq); + + /* maximum divider is 4 */ + if (div > 4) + div = 4; + + *freq = parent_rate / div; + + /* we were called to round the frequency, we can now return */ + if (!m) + return; + + *m = div; +} + +static struct clk_factors_config sun9i_a80_gt_config = { + .mshift = 0, + .mwidth = 2, +}; + +static const struct factors_data sun9i_a80_gt_data __initconst = { + .mux = 24, + .muxmask = BIT(1) | BIT(0), + .table = &sun9i_a80_gt_config, + .getter = sun9i_a80_get_gt_factors, +}; + +static DEFINE_SPINLOCK(sun9i_a80_gt_lock); + +static void __init sun9i_a80_gt_setup(struct device_node *node) +{ + struct clk *gt = sunxi_factors_register(node, &sun9i_a80_gt_data, + &sun9i_a80_gt_lock); + + /* The GT bus clock needs to be always enabled */ + __clk_get(gt); + clk_prepare_enable(gt); +} +CLK_OF_DECLARE(sun9i_a80_gt, "allwinner,sun9i-a80-gt-clk", sun9i_a80_gt_setup); + + +/** + * sun9i_a80_get_ahb_factors() - calculates p factor for AHB0/1/2 + * AHB rate is calculated as follows + * rate = parent_rate >> p; + */ + +static void sun9i_a80_get_ahb_factors(u32 *freq, u32 parent_rate, + u8 *n, u8 *k, u8 *m, u8 *p) +{ + u32 _p; + + if (parent_rate < *freq) + *freq = parent_rate; + + _p = order_base_2(DIV_ROUND_UP(parent_rate, *freq)); + + /* maximum p is 3 */ + if (_p > 3) + _p = 3; + + *freq = parent_rate >> _p; + + /* we were called to round the frequency, we can now return */ + if (!p) + return; + + *p = _p; +} + +static struct clk_factors_config sun9i_a80_ahb_config = { + .pshift = 0, + .pwidth = 2, +}; + +static const struct factors_data sun9i_a80_ahb_data __initconst = { + .mux = 24, + .muxmask = BIT(1) | BIT(0), + .table = &sun9i_a80_ahb_config, + .getter = sun9i_a80_get_ahb_factors, +}; + +static DEFINE_SPINLOCK(sun9i_a80_ahb_lock); + +static void __init sun9i_a80_ahb_setup(struct device_node *node) +{ + sunxi_factors_register(node, &sun9i_a80_ahb_data, &sun9i_a80_ahb_lock); +} +CLK_OF_DECLARE(sun9i_a80_ahb, "allwinner,sun9i-a80-ahb-clk", sun9i_a80_ahb_setup); + + +static const struct factors_data sun9i_a80_apb0_data __initconst = { + .mux = 24, + .muxmask = BIT(0), + .table = &sun9i_a80_ahb_config, + .getter = sun9i_a80_get_ahb_factors, +}; + +static DEFINE_SPINLOCK(sun9i_a80_apb0_lock); + +static void __init sun9i_a80_apb0_setup(struct device_node *node) +{ + sunxi_factors_register(node, &sun9i_a80_apb0_data, &sun9i_a80_apb0_lock); +} +CLK_OF_DECLARE(sun9i_a80_apb0, "allwinner,sun9i-a80-apb0-clk", sun9i_a80_apb0_setup); + + +/** + * sun9i_a80_get_apb1_factors() - calculates m, p factors for APB1 + * APB1 rate is calculated as follows + * rate = (parent_rate >> p) / (m + 1); + */ + +static void sun9i_a80_get_apb1_factors(u32 *freq, u32 parent_rate, + u8 *n, u8 *k, u8 *m, u8 *p) +{ + u32 div; + u8 calcm, calcp; + + if (parent_rate < *freq) + *freq = parent_rate; + + div = DIV_ROUND_UP(parent_rate, *freq); + + /* Highest possible divider is 256 (p = 3, m = 31) */ + if (div > 256) + div = 256; + + calcp = order_base_2(div); + calcm = (parent_rate >> calcp) - 1; + *freq = (parent_rate >> calcp) / (calcm + 1); + + /* we were called to round the frequency, we can now return */ + if (n == NULL) + return; + + *m = calcm; + *p = calcp; +} + +static struct clk_factors_config sun9i_a80_apb1_config = { + .mshift = 0, + .mwidth = 5, + .pshift = 16, + .pwidth = 2, +}; + +static const struct factors_data sun9i_a80_apb1_data __initconst = { + .mux = 24, + .muxmask = BIT(0), + .table = &sun9i_a80_apb1_config, + .getter = sun9i_a80_get_apb1_factors, +}; + +static DEFINE_SPINLOCK(sun9i_a80_apb1_lock); + +static void __init sun9i_a80_apb1_setup(struct device_node *node) +{ + sunxi_factors_register(node, &sun9i_a80_apb1_data, &sun9i_a80_apb1_lock); +} +CLK_OF_DECLARE(sun9i_a80_apb1, "allwinner,sun9i-a80-apb1-clk", sun9i_a80_apb1_setup); -- cgit v1.2.2 From 0b0f08028e4e2d69edbe4bb073af26cd17505a04 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Mon, 20 Oct 2014 22:10:28 +0800 Subject: clk: sunxi: Add support for bus clock gates on Allwinner A80 SoC This adds the gate clocks for AHB/APB busses on the A80 SoC. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/clock/sunxi.txt | 5 ++++ drivers/clk/sunxi/clk-sunxi.c | 31 +++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index 7f1c486691e0..0455cb9caa97 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -29,6 +29,9 @@ Required properties: "allwinner,sun6i-a31-ahb1-mux-clk" - for the AHB1 multiplexer on A31 "allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31 "allwinner,sun8i-a23-ahb1-gates-clk" - for the AHB1 gates on A23 + "allwinner,sun9i-a80-ahb0-gates-clk" - for the AHB0 gates on A80 + "allwinner,sun9i-a80-ahb1-gates-clk" - for the AHB1 gates on A80 + "allwinner,sun9i-a80-ahb2-gates-clk" - for the AHB2 gates on A80 "allwinner,sun4i-a10-apb0-clk" - for the APB0 clock "allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31 "allwinner,sun8i-a23-apb0-clk" - for the APB0 clock on A23 @@ -39,6 +42,7 @@ Required properties: "allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31 "allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20 "allwinner,sun8i-a23-apb0-gates-clk" - for the APB0 gates on A23 + "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80 "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80 "allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing @@ -48,6 +52,7 @@ Required properties: "allwinner,sun6i-a31-apb1-gates-clk" - for the APB1 gates on A31 "allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20 "allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23 + "allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80 "allwinner,sun6i-a31-apb2-div-clk" - for the APB2 gates on A31 "allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31 "allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23 diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 636b8d772d4a..20f47c68a946 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -758,6 +758,18 @@ static const struct gates_data sun8i_a23_ahb1_gates_data __initconst = { .mask = {0x25386742, 0x2505111}, }; +static const struct gates_data sun9i_a80_ahb0_gates_data __initconst = { + .mask = {0xF5F12B}, +}; + +static const struct gates_data sun9i_a80_ahb1_gates_data __initconst = { + .mask = {0x1E20003}, +}; + +static const struct gates_data sun9i_a80_ahb2_gates_data __initconst = { + .mask = {0x9B7}, +}; + static const struct gates_data sun4i_apb0_gates_data __initconst = { .mask = {0x4EF}, }; @@ -774,6 +786,10 @@ static const struct gates_data sun7i_a20_apb0_gates_data __initconst = { .mask = { 0x4ff }, }; +static const struct gates_data sun9i_a80_apb0_gates_data __initconst = { + .mask = {0xEB822}, +}; + static const struct gates_data sun4i_apb1_gates_data __initconst = { .mask = {0xFF00F7}, }; @@ -802,6 +818,10 @@ static const struct gates_data sun7i_a20_apb1_gates_data __initconst = { .mask = { 0xff80ff }, }; +static const struct gates_data sun9i_a80_apb1_gates_data __initconst = { + .mask = {0x3F001F}, +}; + static const struct gates_data sun8i_a23_apb2_gates_data __initconst = { .mask = {0x1F0007}, }; @@ -1103,16 +1123,21 @@ static const struct of_device_id clk_gates_match[] __initconst = { {.compatible = "allwinner,sun6i-a31-ahb1-gates-clk", .data = &sun6i_a31_ahb1_gates_data,}, {.compatible = "allwinner,sun7i-a20-ahb-gates-clk", .data = &sun7i_a20_ahb_gates_data,}, {.compatible = "allwinner,sun8i-a23-ahb1-gates-clk", .data = &sun8i_a23_ahb1_gates_data,}, + {.compatible = "allwinner,sun9i-a80-ahb0-gates-clk", .data = &sun9i_a80_ahb0_gates_data,}, + {.compatible = "allwinner,sun9i-a80-ahb1-gates-clk", .data = &sun9i_a80_ahb1_gates_data,}, + {.compatible = "allwinner,sun9i-a80-ahb2-gates-clk", .data = &sun9i_a80_ahb2_gates_data,}, {.compatible = "allwinner,sun4i-a10-apb0-gates-clk", .data = &sun4i_apb0_gates_data,}, {.compatible = "allwinner,sun5i-a10s-apb0-gates-clk", .data = &sun5i_a10s_apb0_gates_data,}, {.compatible = "allwinner,sun5i-a13-apb0-gates-clk", .data = &sun5i_a13_apb0_gates_data,}, {.compatible = "allwinner,sun7i-a20-apb0-gates-clk", .data = &sun7i_a20_apb0_gates_data,}, + {.compatible = "allwinner,sun9i-a80-apb0-gates-clk", .data = &sun9i_a80_apb0_gates_data,}, {.compatible = "allwinner,sun4i-a10-apb1-gates-clk", .data = &sun4i_apb1_gates_data,}, {.compatible = "allwinner,sun5i-a10s-apb1-gates-clk", .data = &sun5i_a10s_apb1_gates_data,}, {.compatible = "allwinner,sun5i-a13-apb1-gates-clk", .data = &sun5i_a13_apb1_gates_data,}, {.compatible = "allwinner,sun6i-a31-apb1-gates-clk", .data = &sun6i_a31_apb1_gates_data,}, {.compatible = "allwinner,sun7i-a20-apb1-gates-clk", .data = &sun7i_a20_apb1_gates_data,}, {.compatible = "allwinner,sun8i-a23-apb1-gates-clk", .data = &sun8i_a23_apb1_gates_data,}, + {.compatible = "allwinner,sun9i-a80-apb1-gates-clk", .data = &sun9i_a80_apb1_gates_data,}, {.compatible = "allwinner,sun6i-a31-apb2-gates-clk", .data = &sun6i_a31_apb2_gates_data,}, {.compatible = "allwinner,sun8i-a23-apb2-gates-clk", .data = &sun8i_a23_apb2_gates_data,}, {.compatible = "allwinner,sun4i-a10-usb-clk", .data = &sun4i_a10_usb_gates_data,}, @@ -1201,3 +1226,9 @@ static void __init sun6i_init_clocks(struct device_node *node) } CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sun6i_init_clocks); CLK_OF_DECLARE(sun8i_a23_clk_init, "allwinner,sun8i-a23", sun6i_init_clocks); + +static void __init sun9i_init_clocks(struct device_node *node) +{ + sunxi_init_clocks(NULL, 0); +} +CLK_OF_DECLARE(sun9i_a80_clk_init, "allwinner,sun9i-a80", sun9i_init_clocks); -- cgit v1.2.2 From 49ed9ee442227e7f2ef617ca1399269d567834b9 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Thu, 9 Oct 2014 22:23:57 -0700 Subject: clk: rockchip: change PLL setting for better clock jitter dclk_vop0/1 is the source of HDMI TMDS clock in rk3288, usually we use 594MHz for clock source of dclk_vop0/1. HDMI CTS 7-9 require TMDS Clock jitter is lower than 0.25*Tbit: TMDS clock(MHz) CTS require jitter (ps) 297 84.2 148.5 168 74.25 336 27 1247 PLL BW and VCO frequency effects the jitter of PLL output clock, clock jitter is better if BW is lower or VCO frequency is higher. If PLL use default setting of RK3066_PLL_RATE( 594000000, 2, 198, 4), the TMDS Clock jitter is higher than 250ps, which means we can't pass the test when TMDS clock is 297MHz or 148.5MHz. If we use RK3066_PLL_RATE_BWADJ(594000000, 1, 198, 8, 1), the TMDS Clock jitter is about 60ps and we can pass all test case. So we need this patch to make hdmi si test pass. Signed-off-by: Kever Yang Reviewed-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- drivers/clk/rockchip/clk.h | 9 +++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 4cef77b5006d..279a662f5bd7 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -83,7 +83,7 @@ struct rockchip_pll_rate_table rk3288_pll_rates[] = { RK3066_PLL_RATE( 742500000, 8, 495, 2), RK3066_PLL_RATE( 696000000, 1, 58, 2), RK3066_PLL_RATE( 600000000, 1, 50, 2), - RK3066_PLL_RATE( 594000000, 2, 198, 4), + RK3066_PLL_RATE_BWADJ(594000000, 1, 198, 8, 1), RK3066_PLL_RATE( 552000000, 1, 46, 2), RK3066_PLL_RATE( 504000000, 1, 84, 4), RK3066_PLL_RATE( 500000000, 3, 125, 2), diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index ca009ab0a33a..6baf6655b5c3 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -62,6 +62,15 @@ enum rockchip_pll_type { .bwadj = (_nf >> 1), \ } +#define RK3066_PLL_RATE_BWADJ(_rate, _nr, _nf, _no, _bw) \ +{ \ + .rate = _rate##U, \ + .nr = _nr, \ + .nf = _nf, \ + .no = _no, \ + .bwadj = _bw, \ +} + struct rockchip_pll_rate_table { unsigned long rate; unsigned int nr; -- cgit v1.2.2 From 6233fe38048a80a9fa111ddb166ce9e8e0f5f1b3 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Mon, 27 Oct 2014 10:11:58 +0900 Subject: clk: samsung: Document binding for Exynos4415 clock controller This patch adds DT binding documentation for Exynos4415 SoC system clock controllers. Signed-off-by: Chanwoo Choi Acked-by: Kyungmin Park Signed-off-by: Sylwester Nawrocki --- .../devicetree/bindings/clock/exynos4415-clock.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/exynos4415-clock.txt diff --git a/Documentation/devicetree/bindings/clock/exynos4415-clock.txt b/Documentation/devicetree/bindings/clock/exynos4415-clock.txt new file mode 100644 index 000000000000..847d98bae8cf --- /dev/null +++ b/Documentation/devicetree/bindings/clock/exynos4415-clock.txt @@ -0,0 +1,38 @@ +* Samsung Exynos4415 Clock Controller + +The Exynos4415 clock controller generates and supplies clock to various +consumer devices within the Exynos4415 SoC. + +Required properties: + +- compatible: should be one of the following: + - "samsung,exynos4415-cmu" - for the main system clocks controller + (CMU_LEFTBUS, CMU_RIGHTBUS, CMU_TOP, CMU_CPU clock domains). + - "samsung,exynos4415-cmu-dmc" - for the Exynos4415 SoC DRAM Memory + Controller (DMC) domain clock controller. + +- reg: physical base address of the controller and length of memory mapped + region. + +- #clock-cells: should be 1. + +Each clock is assigned an identifier and client nodes can use this identifier +to specify the clock which they consume. + +All available clocks are defined as preprocessor macros in +dt-bindings/clock/exynos4415.h header and can be used in device +tree sources. + +Example 1: An example of a clock controller node is listed below. + + cmu: clock-controller@10030000 { + compatible = "samsung,exynos4415-cmu"; + reg = <0x10030000 0x18000>; + #clock-cells = <1>; + }; + + cmu-dmc: clock-controller@105C0000 { + compatible = "samsung,exynos4415-cmu-dmc"; + reg = <0x105C0000 0x3000>; + #clock-cells = <1>; + }; -- cgit v1.2.2 From 384cb2ce819cf08fc8e7c3d306f180f0cefe4674 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Mon, 27 Oct 2014 10:11:57 +0900 Subject: clk: samsung: exynos4415: Add clocks using common clock framework This patch adds clock driver of Exynos4415 SoC based on Cortex-A9 using common clock framework. The CMU (Clock Management Unit) of Exynos4415 controls PLLs(Phase Locked Loops) and generates system clocks for CPU, busses and function clocks for individual IPs. Signed-off-by: Chanwoo Choi Signed-off-by: Tomasz Figa Signed-off-by: Seung-Woo Kim Acked-by: Kyungmin Park Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/Makefile | 1 + drivers/clk/samsung/clk-exynos4415.c | 1142 ++++++++++++++++++++++++++++++++ include/dt-bindings/clock/exynos4415.h | 360 ++++++++++ 3 files changed, 1503 insertions(+) create mode 100644 drivers/clk/samsung/clk-exynos4415.c create mode 100644 include/dt-bindings/clock/exynos4415.h diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile index 6fb4bc602e8a..d8535e6df1db 100644 --- a/drivers/clk/samsung/Makefile +++ b/drivers/clk/samsung/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_COMMON_CLK) += clk.o clk-pll.o obj-$(CONFIG_SOC_EXYNOS3250) += clk-exynos3250.o obj-$(CONFIG_ARCH_EXYNOS4) += clk-exynos4.o +obj-$(CONFIG_SOC_EXYNOS4415) += clk-exynos4415.o obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o obj-$(CONFIG_SOC_EXYNOS5260) += clk-exynos5260.o obj-$(CONFIG_SOC_EXYNOS5410) += clk-exynos5410.o diff --git a/drivers/clk/samsung/clk-exynos4415.c b/drivers/clk/samsung/clk-exynos4415.c new file mode 100644 index 000000000000..c7208c7a3add --- /dev/null +++ b/drivers/clk/samsung/clk-exynos4415.c @@ -0,0 +1,1142 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Author: Chanwoo Choi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Common Clock Framework support for Exynos4415 SoC. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" +#include "clk-pll.h" + +#define SRC_LEFTBUS 0x4200 +#define DIV_LEFTBUS 0x4500 +#define GATE_IP_LEFTBUS 0x4800 +#define GATE_IP_IMAGE 0x4930 +#define SRC_RIGHTBUS 0x8200 +#define DIV_RIGHTBUS 0x8500 +#define GATE_IP_RIGHTBUS 0x8800 +#define GATE_IP_PERIR 0x8960 +#define EPLL_LOCK 0xc010 +#define G3D_PLL_LOCK 0xc020 +#define DISP_PLL_LOCK 0xc030 +#define ISP_PLL_LOCK 0xc040 +#define EPLL_CON0 0xc110 +#define EPLL_CON1 0xc114 +#define EPLL_CON2 0xc118 +#define G3D_PLL_CON0 0xc120 +#define G3D_PLL_CON1 0xc124 +#define G3D_PLL_CON2 0xc128 +#define ISP_PLL_CON0 0xc130 +#define ISP_PLL_CON1 0xc134 +#define ISP_PLL_CON2 0xc138 +#define DISP_PLL_CON0 0xc140 +#define DISP_PLL_CON1 0xc144 +#define DISP_PLL_CON2 0xc148 +#define SRC_TOP0 0xc210 +#define SRC_TOP1 0xc214 +#define SRC_CAM 0xc220 +#define SRC_TV 0xc224 +#define SRC_MFC 0xc228 +#define SRC_G3D 0xc22c +#define SRC_LCD 0xc234 +#define SRC_ISP 0xc238 +#define SRC_MAUDIO 0xc23c +#define SRC_FSYS 0xc240 +#define SRC_PERIL0 0xc250 +#define SRC_PERIL1 0xc254 +#define SRC_CAM1 0xc258 +#define SRC_TOP_ISP0 0xc25c +#define SRC_TOP_ISP1 0xc260 +#define SRC_MASK_TOP 0xc310 +#define SRC_MASK_CAM 0xc320 +#define SRC_MASK_TV 0xc324 +#define SRC_MASK_LCD 0xc334 +#define SRC_MASK_ISP 0xc338 +#define SRC_MASK_MAUDIO 0xc33c +#define SRC_MASK_FSYS 0xc340 +#define SRC_MASK_PERIL0 0xc350 +#define SRC_MASK_PERIL1 0xc354 +#define DIV_TOP 0xc510 +#define DIV_CAM 0xc520 +#define DIV_TV 0xc524 +#define DIV_MFC 0xc528 +#define DIV_G3D 0xc52c +#define DIV_LCD 0xc534 +#define DIV_ISP 0xc538 +#define DIV_MAUDIO 0xc53c +#define DIV_FSYS0 0xc540 +#define DIV_FSYS1 0xc544 +#define DIV_FSYS2 0xc548 +#define DIV_PERIL0 0xc550 +#define DIV_PERIL1 0xc554 +#define DIV_PERIL2 0xc558 +#define DIV_PERIL3 0xc55c +#define DIV_PERIL4 0xc560 +#define DIV_PERIL5 0xc564 +#define DIV_CAM1 0xc568 +#define DIV_TOP_ISP1 0xc56c +#define DIV_TOP_ISP0 0xc570 +#define CLKDIV2_RATIO 0xc580 +#define GATE_SCLK_CAM 0xc820 +#define GATE_SCLK_TV 0xc824 +#define GATE_SCLK_MFC 0xc828 +#define GATE_SCLK_G3D 0xc82c +#define GATE_SCLK_LCD 0xc834 +#define GATE_SCLK_MAUDIO 0xc83c +#define GATE_SCLK_FSYS 0xc840 +#define GATE_SCLK_PERIL 0xc850 +#define GATE_IP_CAM 0xc920 +#define GATE_IP_TV 0xc924 +#define GATE_IP_MFC 0xc928 +#define GATE_IP_G3D 0xc92c +#define GATE_IP_LCD 0xc934 +#define GATE_IP_FSYS 0xc940 +#define GATE_IP_PERIL 0xc950 +#define GATE_BLOCK 0xc970 +#define APLL_LOCK 0x14000 +#define APLL_CON0 0x14100 +#define SRC_CPU 0x14200 +#define DIV_CPU0 0x14500 +#define DIV_CPU1 0x14504 + +enum exynos4415_plls { + apll, epll, g3d_pll, isp_pll, disp_pll, + nr_plls, +}; + +/* + * Support for CMU save/restore across system suspends + */ +#ifdef CONFIG_PM_SLEEP +static struct samsung_clk_reg_dump *exynos4415_clk_regs; +static struct samsung_clk_provider *exynos4415_ctx; + +static unsigned long exynos4415_cmu_clk_regs[] __initdata = { + SRC_LEFTBUS, + DIV_LEFTBUS, + GATE_IP_LEFTBUS, + GATE_IP_IMAGE, + SRC_RIGHTBUS, + DIV_RIGHTBUS, + GATE_IP_RIGHTBUS, + GATE_IP_PERIR, + EPLL_LOCK, + G3D_PLL_LOCK, + DISP_PLL_LOCK, + ISP_PLL_LOCK, + EPLL_CON0, + EPLL_CON1, + EPLL_CON2, + G3D_PLL_CON0, + G3D_PLL_CON1, + G3D_PLL_CON2, + ISP_PLL_CON0, + ISP_PLL_CON1, + ISP_PLL_CON2, + DISP_PLL_CON0, + DISP_PLL_CON1, + DISP_PLL_CON2, + SRC_TOP0, + SRC_TOP1, + SRC_CAM, + SRC_TV, + SRC_MFC, + SRC_G3D, + SRC_LCD, + SRC_ISP, + SRC_MAUDIO, + SRC_FSYS, + SRC_PERIL0, + SRC_PERIL1, + SRC_CAM1, + SRC_TOP_ISP0, + SRC_TOP_ISP1, + SRC_MASK_TOP, + SRC_MASK_CAM, + SRC_MASK_TV, + SRC_MASK_LCD, + SRC_MASK_ISP, + SRC_MASK_MAUDIO, + SRC_MASK_FSYS, + SRC_MASK_PERIL0, + SRC_MASK_PERIL1, + DIV_TOP, + DIV_CAM, + DIV_TV, + DIV_MFC, + DIV_G3D, + DIV_LCD, + DIV_ISP, + DIV_MAUDIO, + DIV_FSYS0, + DIV_FSYS1, + DIV_FSYS2, + DIV_PERIL0, + DIV_PERIL1, + DIV_PERIL2, + DIV_PERIL3, + DIV_PERIL4, + DIV_PERIL5, + DIV_CAM1, + DIV_TOP_ISP1, + DIV_TOP_ISP0, + CLKDIV2_RATIO, + GATE_SCLK_CAM, + GATE_SCLK_TV, + GATE_SCLK_MFC, + GATE_SCLK_G3D, + GATE_SCLK_LCD, + GATE_SCLK_MAUDIO, + GATE_SCLK_FSYS, + GATE_SCLK_PERIL, + GATE_IP_CAM, + GATE_IP_TV, + GATE_IP_MFC, + GATE_IP_G3D, + GATE_IP_LCD, + GATE_IP_FSYS, + GATE_IP_PERIL, + GATE_BLOCK, + APLL_LOCK, + APLL_CON0, + SRC_CPU, + DIV_CPU0, + DIV_CPU1, +}; + +static int exynos4415_clk_suspend(void) +{ + samsung_clk_save(exynos4415_ctx->reg_base, exynos4415_clk_regs, + ARRAY_SIZE(exynos4415_cmu_clk_regs)); + + return 0; +} + +static void exynos4415_clk_resume(void) +{ + samsung_clk_restore(exynos4415_ctx->reg_base, exynos4415_clk_regs, + ARRAY_SIZE(exynos4415_cmu_clk_regs)); +} + +static struct syscore_ops exynos4415_clk_syscore_ops = { + .suspend = exynos4415_clk_suspend, + .resume = exynos4415_clk_resume, +}; + +static void exynos4415_clk_sleep_init(void) +{ + exynos4415_clk_regs = + samsung_clk_alloc_reg_dump(exynos4415_cmu_clk_regs, + ARRAY_SIZE(exynos4415_cmu_clk_regs)); + if (!exynos4415_clk_regs) { + pr_warn("%s: Failed to allocate sleep save data\n", __func__); + return; + } + + register_syscore_ops(&exynos4415_clk_syscore_ops); +} +#else +static inline void exynos4415_clk_sleep_init(void) { } +#endif + +/* list of all parent clock list */ +PNAME(mout_g3d_pllsrc_p) = { "fin_pll", }; + +PNAME(mout_apll_p) = { "fin_pll", "fout_apll", }; +PNAME(mout_g3d_pll_p) = { "fin_pll", "fout_g3d_pll", }; +PNAME(mout_isp_pll_p) = { "fin_pll", "fout_isp_pll", }; +PNAME(mout_disp_pll_p) = { "fin_pll", "fout_disp_pll", }; + +PNAME(mout_mpll_user_p) = { "fin_pll", "div_mpll_pre", }; +PNAME(mout_epll_p) = { "fin_pll", "fout_epll", }; +PNAME(mout_core_p) = { "mout_apll", "mout_mpll_user_c", }; +PNAME(mout_hpm_p) = { "mout_apll", "mout_mpll_user_c", }; + +PNAME(mout_ebi_p) = { "div_aclk_200", "div_aclk_160", }; +PNAME(mout_ebi_1_p) = { "mout_ebi", "mout_g3d_pll", }; + +PNAME(mout_gdl_p) = { "mout_mpll_user_l", }; +PNAME(mout_gdr_p) = { "mout_mpll_user_r", }; + +PNAME(mout_aclk_266_p) = { "mout_mpll_user_t", "mout_g3d_pll", }; + +PNAME(group_epll_g3dpll_p) = { "mout_epll", "mout_g3d_pll" }; +PNAME(group_sclk_p) = { "xxti", "xusbxti", + "none", "mout_isp_pll", + "none", "none", "div_mpll_pre", + "mout_epll", "mout_g3d_pll", }; +PNAME(group_spdif_p) = { "mout_audio0", "mout_audio1", + "mout_audio2", "spdif_extclk", }; +PNAME(group_sclk_audio2_p) = { "audiocdclk2", "none", + "none", "mout_isp_pll", + "mout_disp_pll", "xusbxti", + "div_mpll_pre", "mout_epll", + "mout_g3d_pll", }; +PNAME(group_sclk_audio1_p) = { "audiocdclk1", "none", + "none", "mout_isp_pll", + "mout_disp_pll", "xusbxti", + "div_mpll_pre", "mout_epll", + "mout_g3d_pll", }; +PNAME(group_sclk_audio0_p) = { "audiocdclk0", "none", + "none", "mout_isp_pll", + "mout_disp_pll", "xusbxti", + "div_mpll_pre", "mout_epll", + "mout_g3d_pll", }; +PNAME(group_fimc_lclk_p) = { "xxti", "xusbxti", + "none", "mout_isp_pll", + "none", "mout_disp_pll", + "mout_mpll_user_t", "mout_epll", + "mout_g3d_pll", }; +PNAME(group_sclk_fimd0_p) = { "xxti", "xusbxti", + "m_bitclkhsdiv4_4l", "mout_isp_pll", + "mout_disp_pll", "sclk_hdmiphy", + "div_mpll_pre", "mout_epll", + "mout_g3d_pll", }; +PNAME(mout_hdmi_p) = { "sclk_pixel", "sclk_hdmiphy" }; +PNAME(mout_mfc_p) = { "mout_mfc_0", "mout_mfc_1" }; +PNAME(mout_g3d_p) = { "mout_g3d_0", "mout_g3d_1" }; +PNAME(mout_jpeg_p) = { "mout_jpeg_0", "mout_jpeg_1" }; +PNAME(mout_jpeg1_p) = { "mout_epll", "mout_g3d_pll" }; +PNAME(group_aclk_isp0_300_p) = { "mout_isp_pll", "div_mpll_pre" }; +PNAME(group_aclk_isp0_400_user_p) = { "fin_pll", "div_aclk_400_mcuisp" }; +PNAME(group_aclk_isp0_300_user_p) = { "fin_pll", "mout_aclk_isp0_300" }; +PNAME(group_aclk_isp1_300_user_p) = { "fin_pll", "mout_aclk_isp1_300" }; +PNAME(group_mout_mpll_user_t_p) = { "mout_mpll_user_t" }; + +static struct samsung_fixed_factor_clock exynos4415_fixed_factor_clks[] __initdata = { + /* HACK: fin_pll hardcoded to xusbxti until detection is implemented. */ + FFACTOR(CLK_FIN_PLL, "fin_pll", "xusbxti", 1, 1, 0), +}; + +static struct samsung_fixed_rate_clock exynos4415_fixed_rate_clks[] __initdata = { + FRATE(CLK_SCLK_HDMIPHY, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 27000000), +}; + +static struct samsung_mux_clock exynos4415_mux_clks[] __initdata = { + /* + * NOTE: Following table is sorted by register address in ascending + * order and then bitfield shift in descending order, as it is done + * in the User's Manual. When adding new entries, please make sure + * that the order is preserved, to avoid merge conflicts and make + * further work with defined data easier. + */ + + /* SRC_LEFTBUS */ + MUX(CLK_MOUT_MPLL_USER_L, "mout_mpll_user_l", mout_mpll_user_p, + SRC_LEFTBUS, 4, 1), + MUX(CLK_MOUT_GDL, "mout_gdl", mout_gdl_p, SRC_LEFTBUS, 0, 1), + + /* SRC_RIGHTBUS */ + MUX(CLK_MOUT_MPLL_USER_R, "mout_mpll_user_r", mout_mpll_user_p, + SRC_RIGHTBUS, 4, 1), + MUX(CLK_MOUT_GDR, "mout_gdr", mout_gdr_p, SRC_RIGHTBUS, 0, 1), + + /* SRC_TOP0 */ + MUX(CLK_MOUT_EBI, "mout_ebi", mout_ebi_p, SRC_TOP0, 28, 1), + MUX(CLK_MOUT_ACLK_200, "mout_aclk_200", group_mout_mpll_user_t_p, + SRC_TOP0, 24, 1), + MUX(CLK_MOUT_ACLK_160, "mout_aclk_160", group_mout_mpll_user_t_p, + SRC_TOP0, 20, 1), + MUX(CLK_MOUT_ACLK_100, "mout_aclk_100", group_mout_mpll_user_t_p, + SRC_TOP0, 16, 1), + MUX(CLK_MOUT_ACLK_266, "mout_aclk_266", mout_aclk_266_p, + SRC_TOP0, 12, 1), + MUX(CLK_MOUT_G3D_PLL, "mout_g3d_pll", mout_g3d_pll_p, + SRC_TOP0, 8, 1), + MUX(CLK_MOUT_EPLL, "mout_epll", mout_epll_p, SRC_TOP0, 4, 1), + MUX(CLK_MOUT_EBI_1, "mout_ebi_1", mout_ebi_1_p, SRC_TOP0, 0, 1), + + /* SRC_TOP1 */ + MUX(CLK_MOUT_ISP_PLL, "mout_isp_pll", mout_isp_pll_p, + SRC_TOP1, 28, 1), + MUX(CLK_MOUT_DISP_PLL, "mout_disp_pll", mout_disp_pll_p, + SRC_TOP1, 16, 1), + MUX(CLK_MOUT_MPLL_USER_T, "mout_mpll_user_t", mout_mpll_user_p, + SRC_TOP1, 12, 1), + MUX(CLK_MOUT_ACLK_400_MCUISP, "mout_aclk_400_mcuisp", + group_mout_mpll_user_t_p, SRC_TOP1, 8, 1), + MUX(CLK_MOUT_G3D_PLLSRC, "mout_g3d_pllsrc", mout_g3d_pllsrc_p, + SRC_TOP1, 0, 1), + + /* SRC_CAM */ + MUX(CLK_MOUT_CSIS1, "mout_csis1", group_fimc_lclk_p, SRC_CAM, 28, 4), + MUX(CLK_MOUT_CSIS0, "mout_csis0", group_fimc_lclk_p, SRC_CAM, 24, 4), + MUX(CLK_MOUT_CAM1, "mout_cam1", group_fimc_lclk_p, SRC_CAM, 20, 4), + MUX(CLK_MOUT_FIMC3_LCLK, "mout_fimc3_lclk", group_fimc_lclk_p, SRC_CAM, + 12, 4), + MUX(CLK_MOUT_FIMC2_LCLK, "mout_fimc2_lclk", group_fimc_lclk_p, SRC_CAM, + 8, 4), + MUX(CLK_MOUT_FIMC1_LCLK, "mout_fimc1_lclk", group_fimc_lclk_p, SRC_CAM, + 4, 4), + MUX(CLK_MOUT_FIMC0_LCLK, "mout_fimc0_lclk", group_fimc_lclk_p, SRC_CAM, + 0, 4), + + /* SRC_TV */ + MUX(CLK_MOUT_HDMI, "mout_hdmi", mout_hdmi_p, SRC_TV, 0, 1), + + /* SRC_MFC */ + MUX(CLK_MOUT_MFC, "mout_mfc", mout_mfc_p, SRC_MFC, 8, 1), + MUX(CLK_MOUT_MFC_1, "mout_mfc_1", group_epll_g3dpll_p, SRC_MFC, 4, 1), + MUX(CLK_MOUT_MFC_0, "mout_mfc_0", group_mout_mpll_user_t_p, SRC_MFC, 0, + 1), + + /* SRC_G3D */ + MUX(CLK_MOUT_G3D, "mout_g3d", mout_g3d_p, SRC_G3D, 8, 1), + MUX(CLK_MOUT_G3D_1, "mout_g3d_1", group_epll_g3dpll_p, SRC_G3D, 4, 1), + MUX(CLK_MOUT_G3D_0, "mout_g3d_0", group_mout_mpll_user_t_p, SRC_G3D, 0, + 1), + + /* SRC_LCD */ + MUX(CLK_MOUT_MIPI0, "mout_mipi0", group_fimc_lclk_p, SRC_LCD, 12, 4), + MUX(CLK_MOUT_FIMD0, "mout_fimd0", group_sclk_fimd0_p, SRC_LCD, 0, 4), + + /* SRC_ISP */ + MUX(CLK_MOUT_TSADC_ISP, "mout_tsadc_isp", group_fimc_lclk_p, SRC_ISP, + 16, 4), + MUX(CLK_MOUT_UART_ISP, "mout_uart_isp", group_fimc_lclk_p, SRC_ISP, + 12, 4), + MUX(CLK_MOUT_SPI1_ISP, "mout_spi1_isp", group_fimc_lclk_p, SRC_ISP, + 8, 4), + MUX(CLK_MOUT_SPI0_ISP, "mout_spi0_isp", group_fimc_lclk_p, SRC_ISP, + 4, 4), + MUX(CLK_MOUT_PWM_ISP, "mout_pwm_isp", group_fimc_lclk_p, SRC_ISP, + 0, 4), + + /* SRC_MAUDIO */ + MUX(CLK_MOUT_AUDIO0, "mout_audio0", group_sclk_audio0_p, SRC_MAUDIO, + 0, 4), + + /* SRC_FSYS */ + MUX(CLK_MOUT_TSADC, "mout_tsadc", group_sclk_p, SRC_FSYS, 28, 4), + MUX(CLK_MOUT_MMC2, "mout_mmc2", group_sclk_p, SRC_FSYS, 8, 4), + MUX(CLK_MOUT_MMC1, "mout_mmc1", group_sclk_p, SRC_FSYS, 4, 4), + MUX(CLK_MOUT_MMC0, "mout_mmc0", group_sclk_p, SRC_FSYS, 0, 4), + + /* SRC_PERIL0 */ + MUX(CLK_MOUT_UART3, "mout_uart3", group_sclk_p, SRC_PERIL0, 12, 4), + MUX(CLK_MOUT_UART2, "mout_uart2", group_sclk_p, SRC_PERIL0, 8, 4), + MUX(CLK_MOUT_UART1, "mout_uart1", group_sclk_p, SRC_PERIL0, 4, 4), + MUX(CLK_MOUT_UART0, "mout_uart0", group_sclk_p, SRC_PERIL0, 0, 4), + + /* SRC_PERIL1 */ + MUX(CLK_MOUT_SPI2, "mout_spi2", group_sclk_p, SRC_PERIL1, 24, 4), + MUX(CLK_MOUT_SPI1, "mout_spi1", group_sclk_p, SRC_PERIL1, 20, 4), + MUX(CLK_MOUT_SPI0, "mout_spi0", group_sclk_p, SRC_PERIL1, 16, 4), + MUX(CLK_MOUT_SPDIF, "mout_spdif", group_spdif_p, SRC_PERIL1, 8, 4), + MUX(CLK_MOUT_AUDIO2, "mout_audio2", group_sclk_audio2_p, SRC_PERIL1, + 4, 4), + MUX(CLK_MOUT_AUDIO1, "mout_audio1", group_sclk_audio1_p, SRC_PERIL1, + 0, 4), + + /* SRC_CPU */ + MUX(CLK_MOUT_MPLL_USER_C, "mout_mpll_user_c", mout_mpll_user_p, + SRC_CPU, 24, 1), + MUX(CLK_MOUT_HPM, "mout_hpm", mout_hpm_p, SRC_CPU, 20, 1), + MUX_F(CLK_MOUT_CORE, "mout_core", mout_core_p, SRC_CPU, 16, 1, 0, + CLK_MUX_READ_ONLY), + MUX_F(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, + CLK_SET_RATE_PARENT, 0), + + /* SRC_CAM1 */ + MUX(CLK_MOUT_PXLASYNC_CSIS1_FIMC, "mout_pxlasync_csis1", + group_fimc_lclk_p, SRC_CAM1, 20, 1), + MUX(CLK_MOUT_PXLASYNC_CSIS0_FIMC, "mout_pxlasync_csis0", + group_fimc_lclk_p, SRC_CAM1, 16, 1), + MUX(CLK_MOUT_JPEG, "mout_jpeg", mout_jpeg_p, SRC_CAM1, 8, 1), + MUX(CLK_MOUT_JPEG1, "mout_jpeg_1", mout_jpeg1_p, SRC_CAM1, 4, 1), + MUX(CLK_MOUT_JPEG0, "mout_jpeg_0", group_mout_mpll_user_t_p, SRC_CAM1, + 0, 1), + + /* SRC_TOP_ISP0 */ + MUX(CLK_MOUT_ACLK_ISP0_300, "mout_aclk_isp0_300", + group_aclk_isp0_300_p, SRC_TOP_ISP0, 8, 1), + MUX(CLK_MOUT_ACLK_ISP0_400, "mout_aclk_isp0_400_user", + group_aclk_isp0_400_user_p, SRC_TOP_ISP0, 4, 1), + MUX(CLK_MOUT_ACLK_ISP0_300_USER, "mout_aclk_isp0_300_user", + group_aclk_isp0_300_user_p, SRC_TOP_ISP0, 0, 1), + + /* SRC_TOP_ISP1 */ + MUX(CLK_MOUT_ACLK_ISP1_300, "mout_aclk_isp1_300", + group_aclk_isp0_300_p, SRC_TOP_ISP1, 4, 1), + MUX(CLK_MOUT_ACLK_ISP1_300_USER, "mout_aclk_isp1_300_user", + group_aclk_isp1_300_user_p, SRC_TOP_ISP1, 0, 1), +}; + +static struct samsung_div_clock exynos4415_div_clks[] __initdata = { + /* + * NOTE: Following table is sorted by register address in ascending + * order and then bitfield shift in descending order, as it is done + * in the User's Manual. When adding new entries, please make sure + * that the order is preserved, to avoid merge conflicts and make + * further work with defined data easier. + */ + + /* DIV_LEFTBUS */ + DIV(CLK_DIV_GPL, "div_gpl", "div_gdl", DIV_LEFTBUS, 4, 3), + DIV(CLK_DIV_GDL, "div_gdl", "mout_gdl", DIV_LEFTBUS, 0, 4), + + /* DIV_RIGHTBUS */ + DIV(CLK_DIV_GPR, "div_gpr", "div_gdr", DIV_RIGHTBUS, 4, 3), + DIV(CLK_DIV_GDR, "div_gdr", "mout_gdr", DIV_RIGHTBUS, 0, 4), + + /* DIV_TOP */ + DIV(CLK_DIV_ACLK_400_MCUISP, "div_aclk_400_mcuisp", + "mout_aclk_400_mcuisp", DIV_TOP, 24, 3), + DIV(CLK_DIV_EBI, "div_ebi", "mout_ebi_1", DIV_TOP, 16, 3), + DIV(CLK_DIV_ACLK_200, "div_aclk_200", "mout_aclk_200", DIV_TOP, 12, 3), + DIV(CLK_DIV_ACLK_160, "div_aclk_160", "mout_aclk_160", DIV_TOP, 8, 3), + DIV(CLK_DIV_ACLK_100, "div_aclk_100", "mout_aclk_100", DIV_TOP, 4, 4), + DIV(CLK_DIV_ACLK_266, "div_aclk_266", "mout_aclk_266", DIV_TOP, 0, 3), + + /* DIV_CAM */ + DIV(CLK_DIV_CSIS1, "div_csis1", "mout_csis1", DIV_CAM, 28, 4), + DIV(CLK_DIV_CSIS0, "div_csis0", "mout_csis0", DIV_CAM, 24, 4), + DIV(CLK_DIV_CAM1, "div_cam1", "mout_cam1", DIV_CAM, 20, 4), + DIV(CLK_DIV_FIMC3_LCLK, "div_fimc3_lclk", "mout_fimc3_lclk", DIV_CAM, + 12, 4), + DIV(CLK_DIV_FIMC2_LCLK, "div_fimc2_lclk", "mout_fimc2_lclk", DIV_CAM, + 8, 4), + DIV(CLK_DIV_FIMC1_LCLK, "div_fimc1_lclk", "mout_fimc1_lclk", DIV_CAM, + 4, 4), + DIV(CLK_DIV_FIMC0_LCLK, "div_fimc0_lclk", "mout_fimc0_lclk", DIV_CAM, + 0, 4), + + /* DIV_TV */ + DIV(CLK_DIV_TV_BLK, "div_tv_blk", "mout_g3d_pll", DIV_TV, 0, 4), + + /* DIV_MFC */ + DIV(CLK_DIV_MFC, "div_mfc", "mout_mfc", DIV_MFC, 0, 4), + + /* DIV_G3D */ + DIV(CLK_DIV_G3D, "div_g3d", "mout_g3d", DIV_G3D, 0, 4), + + /* DIV_LCD */ + DIV_F(CLK_DIV_MIPI0_PRE, "div_mipi0_pre", "div_mipi0", DIV_LCD, 20, 4, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_MIPI0, "div_mipi0", "mout_mipi0", DIV_LCD, 16, 4), + DIV(CLK_DIV_FIMD0, "div_fimd0", "mout_fimd0", DIV_LCD, 0, 4), + + /* DIV_ISP */ + DIV(CLK_DIV_UART_ISP, "div_uart_isp", "mout_uart_isp", DIV_ISP, 28, 4), + DIV_F(CLK_DIV_SPI1_ISP_PRE, "div_spi1_isp_pre", "div_spi1_isp", + DIV_ISP, 20, 8, CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_SPI1_ISP, "div_spi1_isp", "mout_spi1_isp", DIV_ISP, 16, 4), + DIV_F(CLK_DIV_SPI0_ISP_PRE, "div_spi0_isp_pre", "div_spi0_isp", + DIV_ISP, 8, 8, CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_SPI0_ISP, "div_spi0_isp", "mout_spi0_isp", DIV_ISP, 4, 4), + DIV(CLK_DIV_PWM_ISP, "div_pwm_isp", "mout_pwm_isp", DIV_ISP, 0, 4), + + /* DIV_MAUDIO */ + DIV(CLK_DIV_PCM0, "div_pcm0", "div_audio0", DIV_MAUDIO, 4, 8), + DIV(CLK_DIV_AUDIO0, "div_audio0", "mout_audio0", DIV_MAUDIO, 0, 4), + + /* DIV_FSYS0 */ + DIV_F(CLK_DIV_TSADC_PRE, "div_tsadc_pre", "div_tsadc", DIV_FSYS0, 8, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_TSADC, "div_tsadc", "mout_tsadc", DIV_FSYS0, 0, 4), + + /* DIV_FSYS1 */ + DIV_F(CLK_DIV_MMC1_PRE, "div_mmc1_pre", "div_mmc1", DIV_FSYS1, 24, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_MMC1, "div_mmc1", "mout_mmc1", DIV_FSYS1, 16, 4), + DIV_F(CLK_DIV_MMC0_PRE, "div_mmc0_pre", "div_mmc0", DIV_FSYS1, 8, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_MMC0, "div_mmc0", "mout_mmc0", DIV_FSYS1, 0, 4), + + /* DIV_FSYS2 */ + DIV_F(CLK_DIV_MMC2_PRE, "div_mmc2_pre", "div_mmc2", DIV_FSYS2, 8, 8, + CLK_SET_RATE_PARENT, 0), + DIV_F(CLK_DIV_MMC2_PRE, "div_mmc2", "mout_mmc2", DIV_FSYS2, 0, 4, + CLK_SET_RATE_PARENT, 0), + + /* DIV_PERIL0 */ + DIV(CLK_DIV_UART3, "div_uart3", "mout_uart3", DIV_PERIL0, 12, 4), + DIV(CLK_DIV_UART2, "div_uart2", "mout_uart2", DIV_PERIL0, 8, 4), + DIV(CLK_DIV_UART1, "div_uart1", "mout_uart1", DIV_PERIL0, 4, 4), + DIV(CLK_DIV_UART0, "div_uart0", "mout_uart0", DIV_PERIL0, 0, 4), + + /* DIV_PERIL1 */ + DIV_F(CLK_DIV_SPI1_PRE, "div_spi1_pre", "div_spi1", DIV_PERIL1, 24, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_SPI1, "div_spi1", "mout_spi1", DIV_PERIL1, 16, 4), + DIV_F(CLK_DIV_SPI0_PRE, "div_spi0_pre", "div_spi0", DIV_PERIL1, 8, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_SPI0, "div_spi0", "mout_spi0", DIV_PERIL1, 0, 4), + + /* DIV_PERIL2 */ + DIV_F(CLK_DIV_SPI2_PRE, "div_spi2_pre", "div_spi2", DIV_PERIL2, 8, 8, + CLK_SET_RATE_PARENT, 0), + DIV(CLK_DIV_SPI2, "div_spi2", "mout_spi2", DIV_PERIL2, 0, 4), + + /* DIV_PERIL4 */ + DIV(CLK_DIV_PCM2, "div_pcm2", "div_audio2", DIV_PERIL4, 20, 8), + DIV(CLK_DIV_AUDIO2, "div_audio2", "mout_audio2", DIV_PERIL4, 16, 4), + DIV(CLK_DIV_PCM1, "div_pcm1", "div_audio1", DIV_PERIL4, 20, 8), + DIV(CLK_DIV_AUDIO1, "div_audio1", "mout_audio1", DIV_PERIL4, 0, 4), + + /* DIV_PERIL5 */ + DIV(CLK_DIV_I2S1, "div_i2s1", "div_audio1", DIV_PERIL5, 0, 6), + + /* DIV_CAM1 */ + DIV(CLK_DIV_PXLASYNC_CSIS1_FIMC, "div_pxlasync_csis1_fimc", + "mout_pxlasync_csis1", DIV_CAM1, 24, 4), + DIV(CLK_DIV_PXLASYNC_CSIS0_FIMC, "div_pxlasync_csis0_fimc", + "mout_pxlasync_csis0", DIV_CAM1, 20, 4), + DIV(CLK_DIV_JPEG, "div_jpeg", "mout_jpeg", DIV_CAM1, 0, 4), + + /* DIV_CPU0 */ + DIV(CLK_DIV_CORE2, "div_core2", "div_core", DIV_CPU0, 28, 3), + DIV_F(CLK_DIV_APLL, "div_apll", "mout_apll", DIV_CPU0, 24, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + DIV(CLK_DIV_PCLK_DBG, "div_pclk_dbg", "div_core2", DIV_CPU0, 20, 3), + DIV(CLK_DIV_ATB, "div_atb", "div_core2", DIV_CPU0, 16, 3), + DIV(CLK_DIV_PERIPH, "div_periph", "div_core2", DIV_CPU0, 12, 3), + DIV(CLK_DIV_COREM1, "div_corem1", "div_core2", DIV_CPU0, 8, 3), + DIV(CLK_DIV_COREM0, "div_corem0", "div_core2", DIV_CPU0, 4, 3), + DIV_F(CLK_DIV_CORE, "div_core", "mout_core", DIV_CPU0, 0, 3, + CLK_GET_RATE_NOCACHE, CLK_DIVIDER_READ_ONLY), + + /* DIV_CPU1 */ + DIV(CLK_DIV_HPM, "div_hpm", "div_copy", DIV_CPU1, 4, 3), + DIV(CLK_DIV_COPY, "div_copy", "mout_hpm", DIV_CPU1, 0, 3), +}; + +static struct samsung_gate_clock exynos4415_gate_clks[] __initdata = { + /* + * NOTE: Following table is sorted by register address in ascending + * order and then bitfield shift in descending order, as it is done + * in the User's Manual. When adding new entries, please make sure + * that the order is preserved, to avoid merge conflicts and make + * further work with defined data easier. + */ + + /* GATE_IP_LEFTBUS */ + GATE(CLK_ASYNC_G3D, "async_g3d", "div_aclk_100", GATE_IP_LEFTBUS, 6, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_MFCL, "async_mfcl", "div_aclk_100", GATE_IP_LEFTBUS, 4, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_TVX, "async_tvx", "div_aclk_100", GATE_IP_LEFTBUS, 3, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_PPMULEFT, "ppmuleft", "div_aclk_100", GATE_IP_LEFTBUS, 1, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_GPIO_LEFT, "gpio_left", "div_aclk_100", GATE_IP_LEFTBUS, 0, + CLK_IGNORE_UNUSED, 0), + + /* GATE_IP_IMAGE */ + GATE(CLK_PPMUIMAGE, "ppmuimage", "div_aclk_100", GATE_IP_IMAGE, + 9, 0, 0), + GATE(CLK_QEMDMA2, "qe_mdma2", "div_aclk_100", GATE_IP_IMAGE, + 8, 0, 0), + GATE(CLK_QEROTATOR, "qe_rotator", "div_aclk_100", GATE_IP_IMAGE, + 7, 0, 0), + GATE(CLK_SMMUMDMA2, "smmu_mdam2", "div_aclk_100", GATE_IP_IMAGE, + 5, 0, 0), + GATE(CLK_SMMUROTATOR, "smmu_rotator", "div_aclk_100", GATE_IP_IMAGE, + 4, 0, 0), + GATE(CLK_MDMA2, "mdma2", "div_aclk_100", GATE_IP_IMAGE, 2, 0, 0), + GATE(CLK_ROTATOR, "rotator", "div_aclk_100", GATE_IP_IMAGE, 1, 0, 0), + + /* GATE_IP_RIGHTBUS */ + GATE(CLK_ASYNC_ISPMX, "async_ispmx", "div_aclk_100", + GATE_IP_RIGHTBUS, 9, CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_MAUDIOX, "async_maudiox", "div_aclk_100", + GATE_IP_RIGHTBUS, 7, CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_MFCR, "async_mfcr", "div_aclk_100", + GATE_IP_RIGHTBUS, 6, CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_FSYSD, "async_fsysd", "div_aclk_100", + GATE_IP_RIGHTBUS, 5, CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_LCD0X, "async_lcd0x", "div_aclk_100", + GATE_IP_RIGHTBUS, 3, CLK_IGNORE_UNUSED, 0), + GATE(CLK_ASYNC_CAMX, "async_camx", "div_aclk_100", + GATE_IP_RIGHTBUS, 2, CLK_IGNORE_UNUSED, 0), + GATE(CLK_PPMURIGHT, "ppmuright", "div_aclk_100", + GATE_IP_RIGHTBUS, 1, CLK_IGNORE_UNUSED, 0), + GATE(CLK_GPIO_RIGHT, "gpio_right", "div_aclk_100", + GATE_IP_RIGHTBUS, 0, CLK_IGNORE_UNUSED, 0), + + /* GATE_IP_PERIR */ + GATE(CLK_ANTIRBK_APBIF, "antirbk_apbif", "div_aclk_100", + GATE_IP_PERIR, 24, CLK_IGNORE_UNUSED, 0), + GATE(CLK_EFUSE_WRITER_APBIF, "efuse_writer_apbif", "div_aclk_100", + GATE_IP_PERIR, 23, CLK_IGNORE_UNUSED, 0), + GATE(CLK_MONOCNT, "monocnt", "div_aclk_100", GATE_IP_PERIR, 22, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC6, "tzpc6", "div_aclk_100", GATE_IP_PERIR, 21, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_PROVISIONKEY1, "provisionkey1", "div_aclk_100", + GATE_IP_PERIR, 20, CLK_IGNORE_UNUSED, 0), + GATE(CLK_PROVISIONKEY0, "provisionkey0", "div_aclk_100", + GATE_IP_PERIR, 19, CLK_IGNORE_UNUSED, 0), + GATE(CLK_CMU_ISPPART, "cmu_isppart", "div_aclk_100", GATE_IP_PERIR, 18, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TMU_APBIF, "tmu_apbif", "div_aclk_100", + GATE_IP_PERIR, 17, 0, 0), + GATE(CLK_KEYIF, "keyif", "div_aclk_100", GATE_IP_PERIR, 16, 0, 0), + GATE(CLK_RTC, "rtc", "div_aclk_100", GATE_IP_PERIR, 15, 0, 0), + GATE(CLK_WDT, "wdt", "div_aclk_100", GATE_IP_PERIR, 14, 0, 0), + GATE(CLK_MCT, "mct", "div_aclk_100", GATE_IP_PERIR, 13, 0, 0), + GATE(CLK_SECKEY, "seckey", "div_aclk_100", GATE_IP_PERIR, 12, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_HDMI_CEC, "hdmi_cec", "div_aclk_100", GATE_IP_PERIR, 11, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC5, "tzpc5", "div_aclk_100", GATE_IP_PERIR, 10, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC4, "tzpc4", "div_aclk_100", GATE_IP_PERIR, 9, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC3, "tzpc3", "div_aclk_100", GATE_IP_PERIR, 8, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC2, "tzpc2", "div_aclk_100", GATE_IP_PERIR, 7, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC1, "tzpc1", "div_aclk_100", GATE_IP_PERIR, 6, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_TZPC0, "tzpc0", "div_aclk_100", GATE_IP_PERIR, 5, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_CMU_COREPART, "cmu_corepart", "div_aclk_100", GATE_IP_PERIR, 4, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_CMU_TOPPART, "cmu_toppart", "div_aclk_100", GATE_IP_PERIR, 3, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_PMU_APBIF, "pmu_apbif", "div_aclk_100", GATE_IP_PERIR, 2, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_SYSREG, "sysreg", "div_aclk_100", GATE_IP_PERIR, 1, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_CHIP_ID, "chip_id", "div_aclk_100", GATE_IP_PERIR, 0, + CLK_IGNORE_UNUSED, 0), + + /* GATE_SCLK_CAM - non-completed */ + GATE(CLK_SCLK_PXLAYSNC_CSIS1_FIMC, "sclk_pxlasync_csis1_fimc", + "div_pxlasync_csis1_fimc", GATE_SCLK_CAM, 11, + CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_PXLAYSNC_CSIS0_FIMC, "sclk_pxlasync_csis0_fimc", + "div_pxlasync_csis0_fimc", GATE_SCLK_CAM, + 10, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_JPEG, "sclk_jpeg", "div_jpeg", + GATE_SCLK_CAM, 8, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_CSIS1, "sclk_csis1", "div_csis1", + GATE_SCLK_CAM, 7, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_CSIS0, "sclk_csis0", "div_csis0", + GATE_SCLK_CAM, 6, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_CAM1, "sclk_cam1", "div_cam1", + GATE_SCLK_CAM, 5, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_FIMC3_LCLK, "sclk_fimc3_lclk", "div_fimc3_lclk", + GATE_SCLK_CAM, 3, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_FIMC2_LCLK, "sclk_fimc2_lclk", "div_fimc2_lclk", + GATE_SCLK_CAM, 2, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_FIMC1_LCLK, "sclk_fimc1_lclk", "div_fimc1_lclk", + GATE_SCLK_CAM, 1, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_FIMC0_LCLK, "sclk_fimc0_lclk", "div_fimc0_lclk", + GATE_SCLK_CAM, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_TV */ + GATE(CLK_SCLK_PIXEL, "sclk_pixel", "div_tv_blk", + GATE_SCLK_TV, 3, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_HDMI, "sclk_hdmi", "mout_hdmi", + GATE_SCLK_TV, 2, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MIXER, "sclk_mixer", "div_tv_blk", + GATE_SCLK_TV, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_MFC */ + GATE(CLK_SCLK_MFC, "sclk_mfc", "div_mfc", + GATE_SCLK_MFC, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_G3D */ + GATE(CLK_SCLK_G3D, "sclk_g3d", "div_g3d", + GATE_SCLK_G3D, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_LCD */ + GATE(CLK_SCLK_MIPIDPHY4L, "sclk_mipidphy4l", "div_mipi0", + GATE_SCLK_LCD, 4, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MIPI0, "sclk_mipi0", "div_mipi0_pre", + GATE_SCLK_LCD, 3, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MDNIE0, "sclk_mdnie0", "div_fimd0", + GATE_SCLK_LCD, 1, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_FIMD0, "sclk_fimd0", "div_fimd0", + GATE_SCLK_LCD, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_MAUDIO */ + GATE(CLK_SCLK_PCM0, "sclk_pcm0", "div_pcm0", + GATE_SCLK_MAUDIO, 1, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_AUDIO0, "sclk_audio0", "div_audio0", + GATE_SCLK_MAUDIO, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_FSYS */ + GATE(CLK_SCLK_TSADC, "sclk_tsadc", "div_tsadc_pre", + GATE_SCLK_FSYS, 9, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_EBI, "sclk_ebi", "div_ebi", + GATE_SCLK_FSYS, 6, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MMC2, "sclk_mmc2", "div_mmc2_pre", + GATE_SCLK_FSYS, 2, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MMC1, "sclk_mmc1", "div_mmc1_pre", + GATE_SCLK_FSYS, 1, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MMC0, "sclk_mmc0", "div_mmc0_pre", + GATE_SCLK_FSYS, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_SCLK_PERIL */ + GATE(CLK_SCLK_I2S, "sclk_i2s1", "div_i2s1", + GATE_SCLK_PERIL, 18, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_PCM2, "sclk_pcm2", "div_pcm2", + GATE_SCLK_PERIL, 16, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_PCM1, "sclk_pcm1", "div_pcm1", + GATE_SCLK_PERIL, 15, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_AUDIO2, "sclk_audio2", "div_audio2", + GATE_SCLK_PERIL, 14, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_AUDIO1, "sclk_audio1", "div_audio1", + GATE_SCLK_PERIL, 13, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_SPDIF, "sclk_spdif", "mout_spdif", + GATE_SCLK_PERIL, 10, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_SPI2, "sclk_spi2", "div_spi2_pre", + GATE_SCLK_PERIL, 8, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_SPI1, "sclk_spi1", "div_spi1_pre", + GATE_SCLK_PERIL, 7, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_SPI0, "sclk_spi0", "div_spi0_pre", + GATE_SCLK_PERIL, 6, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_UART3, "sclk_uart3", "div_uart3", + GATE_SCLK_PERIL, 3, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_UART2, "sclk_uart2", "div_uart2", + GATE_SCLK_PERIL, 2, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_UART1, "sclk_uart1", "div_uart1", + GATE_SCLK_PERIL, 1, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_UART0, "sclk_uart0", "div_uart0", + GATE_SCLK_PERIL, 0, CLK_SET_RATE_PARENT, 0), + + /* GATE_IP_CAM */ + GATE(CLK_SMMUFIMC_LITE2, "smmufimc_lite2", "div_aclk_160", GATE_IP_CAM, + 22, CLK_IGNORE_UNUSED, 0), + GATE(CLK_FIMC_LITE2, "fimc_lite2", "div_aclk_160", GATE_IP_CAM, + 20, CLK_IGNORE_UNUSED, 0), + GATE(CLK_PIXELASYNCM1, "pixelasyncm1", "div_aclk_160", GATE_IP_CAM, + 18, CLK_IGNORE_UNUSED, 0), + GATE(CLK_PIXELASYNCM0, "pixelasyncm0", "div_aclk_160", GATE_IP_CAM, + 17, CLK_IGNORE_UNUSED, 0), + GATE(CLK_PPMUCAMIF, "ppmucamif", "div_aclk_160", GATE_IP_CAM, + 16, CLK_IGNORE_UNUSED, 0), + GATE(CLK_SMMUJPEG, "smmujpeg", "div_aclk_160", GATE_IP_CAM, 11, 0, 0), + GATE(CLK_SMMUFIMC3, "smmufimc3", "div_aclk_160", GATE_IP_CAM, 10, 0, 0), + GATE(CLK_SMMUFIMC2, "smmufimc2", "div_aclk_160", GATE_IP_CAM, 9, 0, 0), + GATE(CLK_SMMUFIMC1, "smmufimc1", "div_aclk_160", GATE_IP_CAM, 8, 0, 0), + GATE(CLK_SMMUFIMC0, "smmufimc0", "div_aclk_160", GATE_IP_CAM, 7, 0, 0), + GATE(CLK_JPEG, "jpeg", "div_aclk_160", GATE_IP_CAM, 6, 0, 0), + GATE(CLK_CSIS1, "csis1", "div_aclk_160", GATE_IP_CAM, 5, 0, 0), + GATE(CLK_CSIS0, "csis0", "div_aclk_160", GATE_IP_CAM, 4, 0, 0), + GATE(CLK_FIMC3, "fimc3", "div_aclk_160", GATE_IP_CAM, 3, 0, 0), + GATE(CLK_FIMC2, "fimc2", "div_aclk_160", GATE_IP_CAM, 2, 0, 0), + GATE(CLK_FIMC1, "fimc1", "div_aclk_160", GATE_IP_CAM, 1, 0, 0), + GATE(CLK_FIMC0, "fimc0", "div_aclk_160", GATE_IP_CAM, 0, 0, 0), + + /* GATE_IP_TV */ + GATE(CLK_PPMUTV, "ppmutv", "div_aclk_100", GATE_IP_TV, 5, 0, 0), + GATE(CLK_SMMUTV, "smmutv", "div_aclk_100", GATE_IP_TV, 4, 0, 0), + GATE(CLK_HDMI, "hdmi", "div_aclk_100", GATE_IP_TV, 3, 0, 0), + GATE(CLK_MIXER, "mixer", "div_aclk_100", GATE_IP_TV, 1, 0, 0), + GATE(CLK_VP, "vp", "div_aclk_100", GATE_IP_TV, 0, 0, 0), + + /* GATE_IP_MFC */ + GATE(CLK_PPMUMFC_R, "ppmumfc_r", "div_aclk_200", GATE_IP_MFC, 4, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_PPMUMFC_L, "ppmumfc_l", "div_aclk_200", GATE_IP_MFC, 3, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_SMMUMFC_R, "smmumfc_r", "div_aclk_200", GATE_IP_MFC, 2, 0, 0), + GATE(CLK_SMMUMFC_L, "smmumfc_l", "div_aclk_200", GATE_IP_MFC, 1, 0, 0), + GATE(CLK_MFC, "mfc", "div_aclk_200", GATE_IP_MFC, 0, 0, 0), + + /* GATE_IP_G3D */ + GATE(CLK_PPMUG3D, "ppmug3d", "div_aclk_200", GATE_IP_G3D, 1, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_G3D, "g3d", "div_aclk_200", GATE_IP_G3D, 0, 0, 0), + + /* GATE_IP_LCD */ + GATE(CLK_PPMULCD0, "ppmulcd0", "div_aclk_160", GATE_IP_LCD, 5, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_SMMUFIMD0, "smmufimd0", "div_aclk_160", GATE_IP_LCD, 4, 0, 0), + GATE(CLK_DSIM0, "dsim0", "div_aclk_160", GATE_IP_LCD, 3, 0, 0), + GATE(CLK_SMIES, "smies", "div_aclk_160", GATE_IP_LCD, 2, 0, 0), + GATE(CLK_MIE0, "mie0", "div_aclk_160", GATE_IP_LCD, 1, 0, 0), + GATE(CLK_FIMD0, "fimd0", "div_aclk_160", GATE_IP_LCD, 0, 0, 0), + + /* GATE_IP_FSYS */ + GATE(CLK_TSADC, "tsadc", "div_aclk_200", GATE_IP_FSYS, 20, 0, 0), + GATE(CLK_PPMUFILE, "ppmufile", "div_aclk_200", GATE_IP_FSYS, 17, + CLK_IGNORE_UNUSED, 0), + GATE(CLK_NFCON, "nfcon", "div_aclk_200", GATE_IP_FSYS, 16, 0, 0), + GATE(CLK_USBDEVICE, "usbdevice", "div_aclk_200", GATE_IP_FSYS, 13, + 0, 0), + GATE(CLK_USBHOST, "usbhost", "div_aclk_200", GATE_IP_FSYS, 12, 0, 0), + GATE(CLK_SROMC, "sromc", "div_aclk_200", GATE_IP_FSYS, 11, 0, 0), + GATE(CLK_SDMMC2, "sdmmc2", "div_aclk_200", GATE_IP_FSYS, 7, 0, 0), + GATE(CLK_SDMMC1, "sdmmc1", "div_aclk_200", GATE_IP_FSYS, 6, 0, 0), + GATE(CLK_SDMMC0, "sdmmc0", "div_aclk_200", GATE_IP_FSYS, 5, 0, 0), + GATE(CLK_PDMA1, "pdma1", "div_aclk_200", GATE_IP_FSYS, 1, 0, 0), + GATE(CLK_PDMA0, "pdma0", "div_aclk_200", GATE_IP_FSYS, 0, 0, 0), + + /* GATE_IP_PERIL */ + GATE(CLK_SPDIF, "spdif", "div_aclk_100", GATE_IP_PERIL, 26, 0, 0), + GATE(CLK_PWM, "pwm", "div_aclk_100", GATE_IP_PERIL, 24, 0, 0), + GATE(CLK_PCM2, "pcm2", "div_aclk_100", GATE_IP_PERIL, 23, 0, 0), + GATE(CLK_PCM1, "pcm1", "div_aclk_100", GATE_IP_PERIL, 22, 0, 0), + GATE(CLK_I2S1, "i2s1", "div_aclk_100", GATE_IP_PERIL, 20, 0, 0), + GATE(CLK_SPI2, "spi2", "div_aclk_100", GATE_IP_PERIL, 18, 0, 0), + GATE(CLK_SPI1, "spi1", "div_aclk_100", GATE_IP_PERIL, 17, 0, 0), + GATE(CLK_SPI0, "spi0", "div_aclk_100", GATE_IP_PERIL, 16, 0, 0), + GATE(CLK_I2CHDMI, "i2chdmi", "div_aclk_100", GATE_IP_PERIL, 14, 0, 0), + GATE(CLK_I2C7, "i2c7", "div_aclk_100", GATE_IP_PERIL, 13, 0, 0), + GATE(CLK_I2C6, "i2c6", "div_aclk_100", GATE_IP_PERIL, 12, 0, 0), + GATE(CLK_I2C5, "i2c5", "div_aclk_100", GATE_IP_PERIL, 11, 0, 0), + GATE(CLK_I2C4, "i2c4", "div_aclk_100", GATE_IP_PERIL, 10, 0, 0), + GATE(CLK_I2C3, "i2c3", "div_aclk_100", GATE_IP_PERIL, 9, 0, 0), + GATE(CLK_I2C2, "i2c2", "div_aclk_100", GATE_IP_PERIL, 8, 0, 0), + GATE(CLK_I2C1, "i2c1", "div_aclk_100", GATE_IP_PERIL, 7, 0, 0), + GATE(CLK_I2C0, "i2c0", "div_aclk_100", GATE_IP_PERIL, 6, 0, 0), + GATE(CLK_UART3, "uart3", "div_aclk_100", GATE_IP_PERIL, 3, 0, 0), + GATE(CLK_UART2, "uart2", "div_aclk_100", GATE_IP_PERIL, 2, 0, 0), + GATE(CLK_UART1, "uart1", "div_aclk_100", GATE_IP_PERIL, 1, 0, 0), + GATE(CLK_UART0, "uart0", "div_aclk_100", GATE_IP_PERIL, 0, 0, 0), +}; + +/* + * APLL & MPLL & BPLL & ISP_PLL & DISP_PLL & G3D_PLL + */ +static struct samsung_pll_rate_table exynos4415_pll_rates[] = { + PLL_35XX_RATE(1600000000, 400, 3, 1), + PLL_35XX_RATE(1500000000, 250, 2, 1), + PLL_35XX_RATE(1400000000, 175, 3, 0), + PLL_35XX_RATE(1300000000, 325, 3, 1), + PLL_35XX_RATE(1200000000, 400, 4, 1), + PLL_35XX_RATE(1100000000, 275, 3, 1), + PLL_35XX_RATE(1066000000, 533, 6, 1), + PLL_35XX_RATE(1000000000, 250, 3, 1), + PLL_35XX_RATE(960000000, 320, 4, 1), + PLL_35XX_RATE(900000000, 300, 4, 1), + PLL_35XX_RATE(850000000, 425, 6, 1), + PLL_35XX_RATE(800000000, 200, 3, 1), + PLL_35XX_RATE(700000000, 175, 3, 1), + PLL_35XX_RATE(667000000, 667, 12, 1), + PLL_35XX_RATE(600000000, 400, 4, 2), + PLL_35XX_RATE(550000000, 275, 3, 2), + PLL_35XX_RATE(533000000, 533, 6, 2), + PLL_35XX_RATE(520000000, 260, 3, 2), + PLL_35XX_RATE(500000000, 250, 3, 2), + PLL_35XX_RATE(440000000, 220, 3, 2), + PLL_35XX_RATE(400000000, 200, 3, 2), + PLL_35XX_RATE(350000000, 175, 3, 2), + PLL_35XX_RATE(300000000, 300, 3, 3), + PLL_35XX_RATE(266000000, 266, 3, 3), + PLL_35XX_RATE(200000000, 200, 3, 3), + PLL_35XX_RATE(160000000, 160, 3, 3), + PLL_35XX_RATE(100000000, 200, 3, 4), + { /* sentinel */ } +}; + +/* EPLL */ +static struct samsung_pll_rate_table exynos4415_epll_rates[] = { + PLL_36XX_RATE(800000000, 200, 3, 1, 0), + PLL_36XX_RATE(288000000, 96, 2, 2, 0), + PLL_36XX_RATE(192000000, 128, 2, 3, 0), + PLL_36XX_RATE(144000000, 96, 2, 3, 0), + PLL_36XX_RATE(96000000, 128, 2, 4, 0), + PLL_36XX_RATE(84000000, 112, 2, 4, 0), + PLL_36XX_RATE(80750011, 107, 2, 4, 43691), + PLL_36XX_RATE(73728004, 98, 2, 4, 19923), + PLL_36XX_RATE(67987602, 271, 3, 5, 62285), + PLL_36XX_RATE(65911004, 175, 2, 5, 49982), + PLL_36XX_RATE(50000000, 200, 3, 5, 0), + PLL_36XX_RATE(49152003, 131, 2, 5, 4719), + PLL_36XX_RATE(48000000, 128, 2, 5, 0), + PLL_36XX_RATE(45250000, 181, 3, 5, 0), + { /* sentinel */ } +}; + +static struct samsung_pll_clock exynos4415_plls[nr_plls] __initdata = { + [apll] = PLL(pll_35xx, CLK_FOUT_APLL, "fout_apll", "fin_pll", + APLL_LOCK, APLL_CON0, NULL), + [epll] = PLL(pll_36xx, CLK_FOUT_EPLL, "fout_epll", "fin_pll", + EPLL_LOCK, EPLL_CON0, NULL), + [g3d_pll] = PLL(pll_35xx, CLK_FOUT_G3D_PLL, "fout_g3d_pll", + "mout_g3d_pllsrc", G3D_PLL_LOCK, G3D_PLL_CON0, NULL), + [isp_pll] = PLL(pll_35xx, CLK_FOUT_ISP_PLL, "fout_isp_pll", "fin_pll", + ISP_PLL_LOCK, ISP_PLL_CON0, NULL), + [disp_pll] = PLL(pll_35xx, CLK_FOUT_DISP_PLL, "fout_disp_pll", + "fin_pll", DISP_PLL_LOCK, DISP_PLL_CON0, NULL), +}; + +static void __init exynos4415_cmu_init(struct device_node *np) +{ + void __iomem *reg_base; + + reg_base = of_iomap(np, 0); + if (!reg_base) + panic("%s: failed to map registers\n", __func__); + + exynos4415_ctx = samsung_clk_init(np, reg_base, CLK_NR_CLKS); + if (!exynos4415_ctx) + panic("%s: unable to allocate context.\n", __func__); + + exynos4415_plls[apll].rate_table = exynos4415_pll_rates; + exynos4415_plls[epll].rate_table = exynos4415_epll_rates; + exynos4415_plls[g3d_pll].rate_table = exynos4415_pll_rates; + exynos4415_plls[isp_pll].rate_table = exynos4415_pll_rates; + exynos4415_plls[disp_pll].rate_table = exynos4415_pll_rates; + + samsung_clk_register_fixed_factor(exynos4415_ctx, + exynos4415_fixed_factor_clks, + ARRAY_SIZE(exynos4415_fixed_factor_clks)); + samsung_clk_register_fixed_rate(exynos4415_ctx, + exynos4415_fixed_rate_clks, + ARRAY_SIZE(exynos4415_fixed_rate_clks)); + + samsung_clk_register_pll(exynos4415_ctx, exynos4415_plls, + ARRAY_SIZE(exynos4415_plls), reg_base); + samsung_clk_register_mux(exynos4415_ctx, exynos4415_mux_clks, + ARRAY_SIZE(exynos4415_mux_clks)); + samsung_clk_register_div(exynos4415_ctx, exynos4415_div_clks, + ARRAY_SIZE(exynos4415_div_clks)); + samsung_clk_register_gate(exynos4415_ctx, exynos4415_gate_clks, + ARRAY_SIZE(exynos4415_gate_clks)); + + exynos4415_clk_sleep_init(); + + samsung_clk_of_add_provider(np, exynos4415_ctx); +} +CLK_OF_DECLARE(exynos4415_cmu, "samsung,exynos4415-cmu", exynos4415_cmu_init); + +/* + * CMU DMC + */ + +#define MPLL_LOCK 0x008 +#define MPLL_CON0 0x108 +#define MPLL_CON1 0x10c +#define MPLL_CON2 0x110 +#define BPLL_LOCK 0x118 +#define BPLL_CON0 0x218 +#define BPLL_CON1 0x21c +#define BPLL_CON2 0x220 +#define SRC_DMC 0x300 +#define DIV_DMC1 0x504 + +enum exynos4415_dmc_plls { + mpll, bpll, + nr_dmc_plls, +}; + +#ifdef CONFIG_PM_SLEEP +static struct samsung_clk_reg_dump *exynos4415_dmc_clk_regs; +static struct samsung_clk_provider *exynos4415_dmc_ctx; + +static unsigned long exynos4415_cmu_dmc_clk_regs[] __initdata = { + MPLL_LOCK, + MPLL_CON0, + MPLL_CON1, + MPLL_CON2, + BPLL_LOCK, + BPLL_CON0, + BPLL_CON1, + BPLL_CON2, + SRC_DMC, + DIV_DMC1, +}; + +static int exynos4415_dmc_clk_suspend(void) +{ + samsung_clk_save(exynos4415_dmc_ctx->reg_base, + exynos4415_dmc_clk_regs, + ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs)); + return 0; +} + +static void exynos4415_dmc_clk_resume(void) +{ + samsung_clk_restore(exynos4415_dmc_ctx->reg_base, + exynos4415_dmc_clk_regs, + ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs)); +} + +static struct syscore_ops exynos4415_dmc_clk_syscore_ops = { + .suspend = exynos4415_dmc_clk_suspend, + .resume = exynos4415_dmc_clk_resume, +}; + +static void exynos4415_dmc_clk_sleep_init(void) +{ + exynos4415_dmc_clk_regs = + samsung_clk_alloc_reg_dump(exynos4415_cmu_dmc_clk_regs, + ARRAY_SIZE(exynos4415_cmu_dmc_clk_regs)); + if (!exynos4415_dmc_clk_regs) { + pr_warn("%s: Failed to allocate sleep save data\n", __func__); + return; + } + + register_syscore_ops(&exynos4415_dmc_clk_syscore_ops); +} +#else +static inline void exynos4415_dmc_clk_sleep_init(void) { } +#endif /* CONFIG_PM_SLEEP */ + +PNAME(mout_mpll_p) = { "fin_pll", "fout_mpll", }; +PNAME(mout_bpll_p) = { "fin_pll", "fout_bpll", }; +PNAME(mbpll_p) = { "mout_mpll", "mout_bpll", }; + +static struct samsung_mux_clock exynos4415_dmc_mux_clks[] __initdata = { + MUX(CLK_DMC_MOUT_MPLL, "mout_mpll", mout_mpll_p, SRC_DMC, 12, 1), + MUX(CLK_DMC_MOUT_BPLL, "mout_bpll", mout_bpll_p, SRC_DMC, 10, 1), + MUX(CLK_DMC_MOUT_DPHY, "mout_dphy", mbpll_p, SRC_DMC, 8, 1), + MUX(CLK_DMC_MOUT_DMC_BUS, "mout_dmc_bus", mbpll_p, SRC_DMC, 4, 1), +}; + +static struct samsung_div_clock exynos4415_dmc_div_clks[] __initdata = { + DIV(CLK_DMC_DIV_DMC, "div_dmc", "div_dmc_pre", DIV_DMC1, 27, 3), + DIV(CLK_DMC_DIV_DPHY, "div_dphy", "mout_dphy", DIV_DMC1, 23, 3), + DIV(CLK_DMC_DIV_DMC_PRE, "div_dmc_pre", "mout_dmc_bus", + DIV_DMC1, 19, 2), + DIV(CLK_DMC_DIV_DMCP, "div_dmcp", "div_dmcd", DIV_DMC1, 15, 3), + DIV(CLK_DMC_DIV_DMCD, "div_dmcd", "div_dmc", DIV_DMC1, 11, 3), + DIV(CLK_DMC_DIV_MPLL_PRE, "div_mpll_pre", "mout_mpll", DIV_DMC1, 8, 2), +}; + +static struct samsung_pll_clock exynos4415_dmc_plls[nr_dmc_plls] __initdata = { + [mpll] = PLL(pll_35xx, CLK_DMC_FOUT_MPLL, "fout_mpll", "fin_pll", + MPLL_LOCK, MPLL_CON0, NULL), + [bpll] = PLL(pll_35xx, CLK_DMC_FOUT_BPLL, "fout_bpll", "fin_pll", + BPLL_LOCK, BPLL_CON0, NULL), +}; + +static void __init exynos4415_cmu_dmc_init(struct device_node *np) +{ + void __iomem *reg_base; + + reg_base = of_iomap(np, 0); + if (!reg_base) + panic("%s: failed to map registers\n", __func__); + + exynos4415_dmc_ctx = samsung_clk_init(np, reg_base, NR_CLKS_DMC); + if (!exynos4415_dmc_ctx) + panic("%s: unable to allocate context.\n", __func__); + + exynos4415_dmc_plls[mpll].rate_table = exynos4415_pll_rates; + exynos4415_dmc_plls[bpll].rate_table = exynos4415_pll_rates; + + samsung_clk_register_pll(exynos4415_dmc_ctx, exynos4415_dmc_plls, + ARRAY_SIZE(exynos4415_dmc_plls), reg_base); + samsung_clk_register_mux(exynos4415_dmc_ctx, exynos4415_dmc_mux_clks, + ARRAY_SIZE(exynos4415_dmc_mux_clks)); + samsung_clk_register_div(exynos4415_dmc_ctx, exynos4415_dmc_div_clks, + ARRAY_SIZE(exynos4415_dmc_div_clks)); + + exynos4415_dmc_clk_sleep_init(); + + samsung_clk_of_add_provider(np, exynos4415_dmc_ctx); +} +CLK_OF_DECLARE(exynos4415_cmu_dmc, "samsung,exynos4415-cmu-dmc", + exynos4415_cmu_dmc_init); diff --git a/include/dt-bindings/clock/exynos4415.h b/include/dt-bindings/clock/exynos4415.h new file mode 100644 index 000000000000..7eed55100721 --- /dev/null +++ b/include/dt-bindings/clock/exynos4415.h @@ -0,0 +1,360 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Author: Chanwoo Choi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Device Tree binding constants for Samsung Exynos4415 clock controllers. + */ + +#ifndef _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H +#define _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H + +/* + * Let each exported clock get a unique index, which is used on DT-enabled + * platforms to lookup the clock from a clock specifier. These indices are + * therefore considered an ABI and so must not be changed. This implies + * that new clocks should be added either in free spaces between clock groups + * or at the end. + */ + +/* + * Main CMU + */ + +#define CLK_OSCSEL 1 +#define CLK_FIN_PLL 2 +#define CLK_FOUT_APLL 3 +#define CLK_FOUT_MPLL 4 +#define CLK_FOUT_EPLL 5 +#define CLK_FOUT_G3D_PLL 6 +#define CLK_FOUT_ISP_PLL 7 +#define CLK_FOUT_DISP_PLL 8 + +/* Muxes */ +#define CLK_MOUT_MPLL_USER_L 16 +#define CLK_MOUT_GDL 17 +#define CLK_MOUT_MPLL_USER_R 18 +#define CLK_MOUT_GDR 19 +#define CLK_MOUT_EBI 20 +#define CLK_MOUT_ACLK_200 21 +#define CLK_MOUT_ACLK_160 22 +#define CLK_MOUT_ACLK_100 23 +#define CLK_MOUT_ACLK_266 24 +#define CLK_MOUT_G3D_PLL 25 +#define CLK_MOUT_EPLL 26 +#define CLK_MOUT_EBI_1 27 +#define CLK_MOUT_ISP_PLL 28 +#define CLK_MOUT_DISP_PLL 29 +#define CLK_MOUT_MPLL_USER_T 30 +#define CLK_MOUT_ACLK_400_MCUISP 31 +#define CLK_MOUT_G3D_PLLSRC 32 +#define CLK_MOUT_CSIS1 33 +#define CLK_MOUT_CSIS0 34 +#define CLK_MOUT_CAM1 35 +#define CLK_MOUT_FIMC3_LCLK 36 +#define CLK_MOUT_FIMC2_LCLK 37 +#define CLK_MOUT_FIMC1_LCLK 38 +#define CLK_MOUT_FIMC0_LCLK 39 +#define CLK_MOUT_MFC 40 +#define CLK_MOUT_MFC_1 41 +#define CLK_MOUT_MFC_0 42 +#define CLK_MOUT_G3D 43 +#define CLK_MOUT_G3D_1 44 +#define CLK_MOUT_G3D_0 45 +#define CLK_MOUT_MIPI0 46 +#define CLK_MOUT_FIMD0 47 +#define CLK_MOUT_TSADC_ISP 48 +#define CLK_MOUT_UART_ISP 49 +#define CLK_MOUT_SPI1_ISP 50 +#define CLK_MOUT_SPI0_ISP 51 +#define CLK_MOUT_PWM_ISP 52 +#define CLK_MOUT_AUDIO0 53 +#define CLK_MOUT_TSADC 54 +#define CLK_MOUT_MMC2 55 +#define CLK_MOUT_MMC1 56 +#define CLK_MOUT_MMC0 57 +#define CLK_MOUT_UART3 58 +#define CLK_MOUT_UART2 59 +#define CLK_MOUT_UART1 60 +#define CLK_MOUT_UART0 61 +#define CLK_MOUT_SPI2 62 +#define CLK_MOUT_SPI1 63 +#define CLK_MOUT_SPI0 64 +#define CLK_MOUT_SPDIF 65 +#define CLK_MOUT_AUDIO2 66 +#define CLK_MOUT_AUDIO1 67 +#define CLK_MOUT_MPLL_USER_C 68 +#define CLK_MOUT_HPM 69 +#define CLK_MOUT_CORE 70 +#define CLK_MOUT_APLL 71 +#define CLK_MOUT_PXLASYNC_CSIS1_FIMC 72 +#define CLK_MOUT_PXLASYNC_CSIS0_FIMC 73 +#define CLK_MOUT_JPEG 74 +#define CLK_MOUT_JPEG1 75 +#define CLK_MOUT_JPEG0 76 +#define CLK_MOUT_ACLK_ISP0_300 77 +#define CLK_MOUT_ACLK_ISP0_400 78 +#define CLK_MOUT_ACLK_ISP0_300_USER 79 +#define CLK_MOUT_ACLK_ISP1_300 80 +#define CLK_MOUT_ACLK_ISP1_300_USER 81 +#define CLK_MOUT_HDMI 82 + +/* Dividers */ +#define CLK_DIV_GPL 90 +#define CLK_DIV_GDL 91 +#define CLK_DIV_GPR 92 +#define CLK_DIV_GDR 93 +#define CLK_DIV_ACLK_400_MCUISP 94 +#define CLK_DIV_EBI 95 +#define CLK_DIV_ACLK_200 96 +#define CLK_DIV_ACLK_160 97 +#define CLK_DIV_ACLK_100 98 +#define CLK_DIV_ACLK_266 99 +#define CLK_DIV_CSIS1 100 +#define CLK_DIV_CSIS0 101 +#define CLK_DIV_CAM1 102 +#define CLK_DIV_FIMC3_LCLK 103 +#define CLK_DIV_FIMC2_LCLK 104 +#define CLK_DIV_FIMC1_LCLK 105 +#define CLK_DIV_FIMC0_LCLK 106 +#define CLK_DIV_TV_BLK 107 +#define CLK_DIV_MFC 108 +#define CLK_DIV_G3D 109 +#define CLK_DIV_MIPI0_PRE 110 +#define CLK_DIV_MIPI0 111 +#define CLK_DIV_FIMD0 112 +#define CLK_DIV_UART_ISP 113 +#define CLK_DIV_SPI1_ISP_PRE 114 +#define CLK_DIV_SPI1_ISP 115 +#define CLK_DIV_SPI0_ISP_PRE 116 +#define CLK_DIV_SPI0_ISP 117 +#define CLK_DIV_PWM_ISP 118 +#define CLK_DIV_PCM0 119 +#define CLK_DIV_AUDIO0 120 +#define CLK_DIV_TSADC_PRE 121 +#define CLK_DIV_TSADC 122 +#define CLK_DIV_MMC1_PRE 123 +#define CLK_DIV_MMC1 124 +#define CLK_DIV_MMC0_PRE 125 +#define CLK_DIV_MMC0 126 +#define CLK_DIV_MMC2_PRE 127 +#define CLK_DIV_MMC2 128 +#define CLK_DIV_UART3 129 +#define CLK_DIV_UART2 130 +#define CLK_DIV_UART1 131 +#define CLK_DIV_UART0 132 +#define CLK_DIV_SPI1_PRE 133 +#define CLK_DIV_SPI1 134 +#define CLK_DIV_SPI0_PRE 135 +#define CLK_DIV_SPI0 136 +#define CLK_DIV_SPI2_PRE 137 +#define CLK_DIV_SPI2 138 +#define CLK_DIV_PCM2 139 +#define CLK_DIV_AUDIO2 140 +#define CLK_DIV_PCM1 141 +#define CLK_DIV_AUDIO1 142 +#define CLK_DIV_I2S1 143 +#define CLK_DIV_PXLASYNC_CSIS1_FIMC 144 +#define CLK_DIV_PXLASYNC_CSIS0_FIMC 145 +#define CLK_DIV_JPEG 146 +#define CLK_DIV_CORE2 147 +#define CLK_DIV_APLL 148 +#define CLK_DIV_PCLK_DBG 149 +#define CLK_DIV_ATB 150 +#define CLK_DIV_PERIPH 151 +#define CLK_DIV_COREM1 152 +#define CLK_DIV_COREM0 153 +#define CLK_DIV_CORE 154 +#define CLK_DIV_HPM 155 +#define CLK_DIV_COPY 156 + +/* Gates */ +#define CLK_ASYNC_G3D 180 +#define CLK_ASYNC_MFCL 181 +#define CLK_ASYNC_TVX 182 +#define CLK_PPMULEFT 183 +#define CLK_GPIO_LEFT 184 +#define CLK_PPMUIMAGE 185 +#define CLK_QEMDMA2 186 +#define CLK_QEROTATOR 187 +#define CLK_SMMUMDMA2 188 +#define CLK_SMMUROTATOR 189 +#define CLK_MDMA2 190 +#define CLK_ROTATOR 191 +#define CLK_ASYNC_ISPMX 192 +#define CLK_ASYNC_MAUDIOX 193 +#define CLK_ASYNC_MFCR 194 +#define CLK_ASYNC_FSYSD 195 +#define CLK_ASYNC_LCD0X 196 +#define CLK_ASYNC_CAMX 197 +#define CLK_PPMURIGHT 198 +#define CLK_GPIO_RIGHT 199 +#define CLK_ANTIRBK_APBIF 200 +#define CLK_EFUSE_WRITER_APBIF 201 +#define CLK_MONOCNT 202 +#define CLK_TZPC6 203 +#define CLK_PROVISIONKEY1 204 +#define CLK_PROVISIONKEY0 205 +#define CLK_CMU_ISPPART 206 +#define CLK_TMU_APBIF 207 +#define CLK_KEYIF 208 +#define CLK_RTC 209 +#define CLK_WDT 210 +#define CLK_MCT 211 +#define CLK_SECKEY 212 +#define CLK_HDMI_CEC 213 +#define CLK_TZPC5 214 +#define CLK_TZPC4 215 +#define CLK_TZPC3 216 +#define CLK_TZPC2 217 +#define CLK_TZPC1 218 +#define CLK_TZPC0 219 +#define CLK_CMU_COREPART 220 +#define CLK_CMU_TOPPART 221 +#define CLK_PMU_APBIF 222 +#define CLK_SYSREG 223 +#define CLK_CHIP_ID 224 +#define CLK_SMMUFIMC_LITE2 225 +#define CLK_FIMC_LITE2 226 +#define CLK_PIXELASYNCM1 227 +#define CLK_PIXELASYNCM0 228 +#define CLK_PPMUCAMIF 229 +#define CLK_SMMUJPEG 230 +#define CLK_SMMUFIMC3 231 +#define CLK_SMMUFIMC2 232 +#define CLK_SMMUFIMC1 233 +#define CLK_SMMUFIMC0 234 +#define CLK_JPEG 235 +#define CLK_CSIS1 236 +#define CLK_CSIS0 237 +#define CLK_FIMC3 238 +#define CLK_FIMC2 239 +#define CLK_FIMC1 240 +#define CLK_FIMC0 241 +#define CLK_PPMUTV 242 +#define CLK_SMMUTV 243 +#define CLK_HDMI 244 +#define CLK_MIXER 245 +#define CLK_VP 246 +#define CLK_PPMUMFC_R 247 +#define CLK_PPMUMFC_L 248 +#define CLK_SMMUMFC_R 249 +#define CLK_SMMUMFC_L 250 +#define CLK_MFC 251 +#define CLK_PPMUG3D 252 +#define CLK_G3D 253 +#define CLK_PPMULCD0 254 +#define CLK_SMMUFIMD0 255 +#define CLK_DSIM0 256 +#define CLK_SMIES 257 +#define CLK_MIE0 258 +#define CLK_FIMD0 259 +#define CLK_TSADC 260 +#define CLK_PPMUFILE 261 +#define CLK_NFCON 262 +#define CLK_USBDEVICE 263 +#define CLK_USBHOST 264 +#define CLK_SROMC 265 +#define CLK_SDMMC2 266 +#define CLK_SDMMC1 267 +#define CLK_SDMMC0 268 +#define CLK_PDMA1 269 +#define CLK_PDMA0 270 +#define CLK_SPDIF 271 +#define CLK_PWM 272 +#define CLK_PCM2 273 +#define CLK_PCM1 274 +#define CLK_I2S1 275 +#define CLK_SPI2 276 +#define CLK_SPI1 277 +#define CLK_SPI0 278 +#define CLK_I2CHDMI 279 +#define CLK_I2C7 280 +#define CLK_I2C6 281 +#define CLK_I2C5 282 +#define CLK_I2C4 283 +#define CLK_I2C3 284 +#define CLK_I2C2 285 +#define CLK_I2C1 286 +#define CLK_I2C0 287 +#define CLK_UART3 288 +#define CLK_UART2 289 +#define CLK_UART1 290 +#define CLK_UART0 291 + +/* Special clocks */ +#define CLK_SCLK_PXLAYSNC_CSIS1_FIMC 330 +#define CLK_SCLK_PXLAYSNC_CSIS0_FIMC 331 +#define CLK_SCLK_JPEG 332 +#define CLK_SCLK_CSIS1 333 +#define CLK_SCLK_CSIS0 334 +#define CLK_SCLK_CAM1 335 +#define CLK_SCLK_FIMC3_LCLK 336 +#define CLK_SCLK_FIMC2_LCLK 337 +#define CLK_SCLK_FIMC1_LCLK 338 +#define CLK_SCLK_FIMC0_LCLK 339 +#define CLK_SCLK_PIXEL 340 +#define CLK_SCLK_HDMI 341 +#define CLK_SCLK_MIXER 342 +#define CLK_SCLK_MFC 343 +#define CLK_SCLK_G3D 344 +#define CLK_SCLK_MIPIDPHY4L 345 +#define CLK_SCLK_MIPI0 346 +#define CLK_SCLK_MDNIE0 347 +#define CLK_SCLK_FIMD0 348 +#define CLK_SCLK_PCM0 349 +#define CLK_SCLK_AUDIO0 350 +#define CLK_SCLK_TSADC 351 +#define CLK_SCLK_EBI 352 +#define CLK_SCLK_MMC2 353 +#define CLK_SCLK_MMC1 354 +#define CLK_SCLK_MMC0 355 +#define CLK_SCLK_I2S 356 +#define CLK_SCLK_PCM2 357 +#define CLK_SCLK_PCM1 358 +#define CLK_SCLK_AUDIO2 359 +#define CLK_SCLK_AUDIO1 360 +#define CLK_SCLK_SPDIF 361 +#define CLK_SCLK_SPI2 362 +#define CLK_SCLK_SPI1 363 +#define CLK_SCLK_SPI0 364 +#define CLK_SCLK_UART3 365 +#define CLK_SCLK_UART2 366 +#define CLK_SCLK_UART1 367 +#define CLK_SCLK_UART0 368 +#define CLK_SCLK_HDMIPHY 369 + +/* + * Total number of clocks of main CMU. + * NOTE: Must be equal to last clock ID increased by one. + */ +#define CLK_NR_CLKS 370 + +/* + * CMU DMC + */ +#define CLK_DMC_FOUT_MPLL 1 +#define CLK_DMC_FOUT_BPLL 2 + +#define CLK_DMC_MOUT_MPLL 3 +#define CLK_DMC_MOUT_BPLL 4 +#define CLK_DMC_MOUT_DPHY 5 +#define CLK_DMC_MOUT_DMC_BUS 6 + +#define CLK_DMC_DIV_DMC 7 +#define CLK_DMC_DIV_DPHY 8 +#define CLK_DMC_DIV_DMC_PRE 9 +#define CLK_DMC_DIV_DMCP 10 +#define CLK_DMC_DIV_DMCD 11 +#define CLK_DMC_DIV_MPLL_PRE 12 + +/* + * Total number of clocks of CMU_DMC. + * NOTE: Must be equal to highest clock ID increased by one. + */ +#define NR_CLKS_DMC 13 + +#endif /* _DT_BINDINGS_CLOCK_SAMSUNG_EXYNOS4415_CLOCK_H */ -- cgit v1.2.2 From 0c23e2af6792d7b71d79dd4052c5c93512c5c84d Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Mon, 22 Sep 2014 10:17:01 +0530 Subject: clk: samsung: add support for 145xx and 1460x PLLs PLL145xx is similar to PLL35xx and PLL1460x is almost similar to PLL46xx with minor differences in bit positions. Hence, reuse the functions defined for pll_35xx and pll_46xx to support 145xx and 1460x PLLs respectively. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Reviewed-by: Thomas Abraham Tested-by: Thomas Abraham Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-pll.c | 25 ++++++++++++++++++++----- drivers/clk/samsung/clk-pll.h | 4 ++++ 2 files changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index b07fad2a9167..9d70e5c03804 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -482,6 +482,8 @@ static const struct clk_ops samsung_pll45xx_clk_min_ops = { #define PLL46XX_VSEL_MASK (1) #define PLL46XX_MDIV_MASK (0x1FF) +#define PLL1460X_MDIV_MASK (0x3FF) + #define PLL46XX_PDIV_MASK (0x3F) #define PLL46XX_SDIV_MASK (0x7) #define PLL46XX_VSEL_SHIFT (27) @@ -511,13 +513,15 @@ static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw, pll_con0 = __raw_readl(pll->con_reg); pll_con1 = __raw_readl(pll->con_reg + 4); - mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK; + mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & ((pll->type == pll_1460x) ? + PLL1460X_MDIV_MASK : PLL46XX_MDIV_MASK); pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK; sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK; kdiv = pll->type == pll_4650c ? pll_con1 & PLL4650C_KDIV_MASK : pll_con1 & PLL46XX_KDIV_MASK; - shift = pll->type == pll_4600 ? 16 : 10; + shift = ((pll->type == pll_4600) || (pll->type == pll_1460x)) ? 16 : 10; + fvco *= (mdiv << shift) + kdiv; do_div(fvco, (pdiv << sdiv)); fvco >>= shift; @@ -573,14 +577,21 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate, lock = 0xffff; /* Set PLL PMS and VSEL values. */ - con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) | + if (pll->type == pll_1460x) { + con0 &= ~((PLL1460X_MDIV_MASK << PLL46XX_MDIV_SHIFT) | + (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) | + (PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT)); + } else { + con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) | (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) | (PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT) | (PLL46XX_VSEL_MASK << PLL46XX_VSEL_SHIFT)); + con0 |= rate->vsel << PLL46XX_VSEL_SHIFT; + } + con0 |= (rate->mdiv << PLL46XX_MDIV_SHIFT) | (rate->pdiv << PLL46XX_PDIV_SHIFT) | - (rate->sdiv << PLL46XX_SDIV_SHIFT) | - (rate->vsel << PLL46XX_VSEL_SHIFT); + (rate->sdiv << PLL46XX_SDIV_SHIFT); /* Set PLL K, MFR and MRR values. */ con1 = __raw_readl(pll->con_reg + 0x4); @@ -1190,6 +1201,9 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, /* clk_ops for 35xx and 2550 are similar */ case pll_35xx: case pll_2550: + case pll_1450x: + case pll_1451x: + case pll_1452x: if (!pll->rate_table) init.ops = &samsung_pll35xx_clk_min_ops; else @@ -1223,6 +1237,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, case pll_4600: case pll_4650: case pll_4650c: + case pll_1460x: if (!pll->rate_table) init.ops = &samsung_pll46xx_clk_min_ops; else diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h index c0ed4d41fd90..213de9af8b4f 100644 --- a/drivers/clk/samsung/clk-pll.h +++ b/drivers/clk/samsung/clk-pll.h @@ -33,6 +33,10 @@ enum samsung_pll_type { pll_s3c2440_mpll, pll_2550xx, pll_2650xx, + pll_1450x, + pll_1451x, + pll_1452x, + pll_1460x, }; #define PLL_35XX_RATE(_rate, _m, _p, _s) \ -- cgit v1.2.2 From 16a9013b83b5106c83cf3caf9ba0d94e54dbebba Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Mon, 22 Sep 2014 10:17:02 +0530 Subject: clk: samsung: Factor out the common code to clk.c While adding clock support for Exynos5260, the infrastructure to register multiple clock controllers was introduced. Factor out the support for registering multiple clock controller from Exynos5260 clock code to common samsung clock code so that it can be used by other Exynos SoC which have multiple clock controllers. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Reviewed-by: Thomas Abraham Tested-by: Thomas Abraham Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos5260.c | 185 +++++------------------------------ drivers/clk/samsung/clk.c | 95 ++++++++++++++++++ drivers/clk/samsung/clk.h | 34 +++++++ 3 files changed, 155 insertions(+), 159 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos5260.c b/drivers/clk/samsung/clk-exynos5260.c index 2527e39aadcf..e2e5193d1049 100644 --- a/drivers/clk/samsung/clk-exynos5260.c +++ b/drivers/clk/samsung/clk-exynos5260.c @@ -11,10 +11,8 @@ #include #include -#include #include #include -#include #include "clk-exynos5260.h" #include "clk.h" @@ -22,39 +20,6 @@ #include -static LIST_HEAD(clock_reg_cache_list); - -struct exynos5260_clock_reg_cache { - struct list_head node; - void __iomem *reg_base; - struct samsung_clk_reg_dump *rdump; - unsigned int rd_num; -}; - -struct exynos5260_cmu_info { - /* list of pll clocks and respective count */ - struct samsung_pll_clock *pll_clks; - unsigned int nr_pll_clks; - /* list of mux clocks and respective count */ - struct samsung_mux_clock *mux_clks; - unsigned int nr_mux_clks; - /* list of div clocks and respective count */ - struct samsung_div_clock *div_clks; - unsigned int nr_div_clks; - /* list of gate clocks and respective count */ - struct samsung_gate_clock *gate_clks; - unsigned int nr_gate_clks; - /* list of fixed clocks and respective count */ - struct samsung_fixed_rate_clock *fixed_clks; - unsigned int nr_fixed_clks; - /* total number of clocks with IDs assigned*/ - unsigned int nr_clk_ids; - - /* list and number of clocks registers */ - unsigned long *clk_regs; - unsigned int nr_clk_regs; -}; - /* * Applicable for all 2550 Type PLLS for Exynos5260, listed below * DISP_PLL, EGL_PLL, KFC_PLL, MEM_PLL, BUS_PLL, MEDIA_PLL, G3D_PLL. @@ -113,104 +78,6 @@ static struct samsung_pll_rate_table pll2650_24mhz_tbl[] __initdata = { PLL_36XX_RATE(66000000, 176, 2, 5, 0), }; -#ifdef CONFIG_PM_SLEEP - -static int exynos5260_clk_suspend(void) -{ - struct exynos5260_clock_reg_cache *cache; - - list_for_each_entry(cache, &clock_reg_cache_list, node) - samsung_clk_save(cache->reg_base, cache->rdump, - cache->rd_num); - - return 0; -} - -static void exynos5260_clk_resume(void) -{ - struct exynos5260_clock_reg_cache *cache; - - list_for_each_entry(cache, &clock_reg_cache_list, node) - samsung_clk_restore(cache->reg_base, cache->rdump, - cache->rd_num); -} - -static struct syscore_ops exynos5260_clk_syscore_ops = { - .suspend = exynos5260_clk_suspend, - .resume = exynos5260_clk_resume, -}; - -static void exynos5260_clk_sleep_init(void __iomem *reg_base, - unsigned long *rdump, - unsigned long nr_rdump) -{ - struct exynos5260_clock_reg_cache *reg_cache; - - reg_cache = kzalloc(sizeof(struct exynos5260_clock_reg_cache), - GFP_KERNEL); - if (!reg_cache) - panic("could not allocate register cache.\n"); - - reg_cache->rdump = samsung_clk_alloc_reg_dump(rdump, nr_rdump); - - if (!reg_cache->rdump) - panic("could not allocate register dump storage.\n"); - - if (list_empty(&clock_reg_cache_list)) - register_syscore_ops(&exynos5260_clk_syscore_ops); - - reg_cache->rd_num = nr_rdump; - reg_cache->reg_base = reg_base; - list_add_tail(®_cache->node, &clock_reg_cache_list); -} - -#else -static void exynos5260_clk_sleep_init(void __iomem *reg_base, - unsigned long *rdump, - unsigned long nr_rdump){} -#endif - -/* - * Common function which registers plls, muxes, dividers and gates - * for each CMU. It also add CMU register list to register cache. - */ - -void __init exynos5260_cmu_register_one(struct device_node *np, - struct exynos5260_cmu_info *cmu) -{ - void __iomem *reg_base; - struct samsung_clk_provider *ctx; - - reg_base = of_iomap(np, 0); - if (!reg_base) - panic("%s: failed to map registers\n", __func__); - - ctx = samsung_clk_init(np, reg_base, cmu->nr_clk_ids); - if (!ctx) - panic("%s: unable to alllocate ctx\n", __func__); - - if (cmu->pll_clks) - samsung_clk_register_pll(ctx, cmu->pll_clks, cmu->nr_pll_clks, - reg_base); - if (cmu->mux_clks) - samsung_clk_register_mux(ctx, cmu->mux_clks, - cmu->nr_mux_clks); - if (cmu->div_clks) - samsung_clk_register_div(ctx, cmu->div_clks, cmu->nr_div_clks); - if (cmu->gate_clks) - samsung_clk_register_gate(ctx, cmu->gate_clks, - cmu->nr_gate_clks); - if (cmu->fixed_clks) - samsung_clk_register_fixed_rate(ctx, cmu->fixed_clks, - cmu->nr_fixed_clks); - if (cmu->clk_regs) - exynos5260_clk_sleep_init(reg_base, cmu->clk_regs, - cmu->nr_clk_regs); - - samsung_clk_of_add_provider(np, ctx); -} - - /* CMU_AUD */ static unsigned long aud_clk_regs[] __initdata = { @@ -268,7 +135,7 @@ struct samsung_gate_clock aud_gate_clks[] __initdata = { static void __init exynos5260_clk_aud_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = aud_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(aud_mux_clks); @@ -280,7 +147,7 @@ static void __init exynos5260_clk_aud_init(struct device_node *np) cmu.clk_regs = aud_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(aud_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_aud, "samsung,exynos5260-clock-aud", @@ -458,7 +325,7 @@ struct samsung_gate_clock disp_gate_clks[] __initdata = { static void __init exynos5260_clk_disp_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = disp_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(disp_mux_clks); @@ -470,7 +337,7 @@ static void __init exynos5260_clk_disp_init(struct device_node *np) cmu.clk_regs = disp_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(disp_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_disp, "samsung,exynos5260-clock-disp", @@ -522,7 +389,7 @@ static struct samsung_pll_clock egl_pll_clks[] __initdata = { static void __init exynos5260_clk_egl_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.pll_clks = egl_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(egl_pll_clks); @@ -534,7 +401,7 @@ static void __init exynos5260_clk_egl_init(struct device_node *np) cmu.clk_regs = egl_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(egl_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_egl, "samsung,exynos5260-clock-egl", @@ -624,7 +491,7 @@ struct samsung_gate_clock fsys_gate_clks[] __initdata = { static void __init exynos5260_clk_fsys_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = fsys_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(fsys_mux_clks); @@ -634,7 +501,7 @@ static void __init exynos5260_clk_fsys_init(struct device_node *np) cmu.clk_regs = fsys_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(fsys_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_fsys, "samsung,exynos5260-clock-fsys", @@ -713,7 +580,7 @@ struct samsung_gate_clock g2d_gate_clks[] __initdata = { static void __init exynos5260_clk_g2d_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = g2d_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(g2d_mux_clks); @@ -725,7 +592,7 @@ static void __init exynos5260_clk_g2d_init(struct device_node *np) cmu.clk_regs = g2d_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(g2d_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_g2d, "samsung,exynos5260-clock-g2d", @@ -774,7 +641,7 @@ static struct samsung_pll_clock g3d_pll_clks[] __initdata = { static void __init exynos5260_clk_g3d_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.pll_clks = g3d_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(g3d_pll_clks); @@ -788,7 +655,7 @@ static void __init exynos5260_clk_g3d_init(struct device_node *np) cmu.clk_regs = g3d_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(g3d_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_g3d, "samsung,exynos5260-clock-g3d", @@ -909,7 +776,7 @@ struct samsung_gate_clock gscl_gate_clks[] __initdata = { static void __init exynos5260_clk_gscl_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = gscl_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(gscl_mux_clks); @@ -921,7 +788,7 @@ static void __init exynos5260_clk_gscl_init(struct device_node *np) cmu.clk_regs = gscl_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(gscl_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_gscl, "samsung,exynos5260-clock-gscl", @@ -1028,7 +895,7 @@ struct samsung_gate_clock isp_gate_clks[] __initdata = { static void __init exynos5260_clk_isp_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = isp_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(isp_mux_clks); @@ -1040,7 +907,7 @@ static void __init exynos5260_clk_isp_init(struct device_node *np) cmu.clk_regs = isp_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(isp_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_isp, "samsung,exynos5260-clock-isp", @@ -1092,7 +959,7 @@ static struct samsung_pll_clock kfc_pll_clks[] __initdata = { static void __init exynos5260_clk_kfc_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.pll_clks = kfc_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(kfc_pll_clks); @@ -1104,7 +971,7 @@ static void __init exynos5260_clk_kfc_init(struct device_node *np) cmu.clk_regs = kfc_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(kfc_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_kfc, "samsung,exynos5260-clock-kfc", @@ -1148,7 +1015,7 @@ struct samsung_gate_clock mfc_gate_clks[] __initdata = { static void __init exynos5260_clk_mfc_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = mfc_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(mfc_mux_clks); @@ -1160,7 +1027,7 @@ static void __init exynos5260_clk_mfc_init(struct device_node *np) cmu.clk_regs = mfc_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(mfc_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_mfc, "samsung,exynos5260-clock-mfc", @@ -1295,7 +1162,7 @@ static struct samsung_pll_clock mif_pll_clks[] __initdata = { static void __init exynos5260_clk_mif_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.pll_clks = mif_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(mif_pll_clks); @@ -1309,7 +1176,7 @@ static void __init exynos5260_clk_mif_init(struct device_node *np) cmu.clk_regs = mif_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(mif_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_mif, "samsung,exynos5260-clock-mif", @@ -1503,7 +1370,7 @@ struct samsung_gate_clock peri_gate_clks[] __initdata = { static void __init exynos5260_clk_peri_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.mux_clks = peri_mux_clks; cmu.nr_mux_clks = ARRAY_SIZE(peri_mux_clks); @@ -1515,7 +1382,7 @@ static void __init exynos5260_clk_peri_init(struct device_node *np) cmu.clk_regs = peri_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(peri_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_peri, "samsung,exynos5260-clock-peri", @@ -1959,7 +1826,7 @@ static struct samsung_pll_clock top_pll_clks[] __initdata = { static void __init exynos5260_clk_top_init(struct device_node *np) { - struct exynos5260_cmu_info cmu = {0}; + struct samsung_cmu_info cmu = {0}; cmu.pll_clks = top_pll_clks; cmu.nr_pll_clks = ARRAY_SIZE(top_pll_clks); @@ -1975,7 +1842,7 @@ static void __init exynos5260_clk_top_init(struct device_node *np) cmu.clk_regs = top_clk_regs; cmu.nr_clk_regs = ARRAY_SIZE(top_clk_regs); - exynos5260_cmu_register_one(np, &cmu); + samsung_cmu_register_one(np, &cmu); } CLK_OF_DECLARE(exynos5260_clk_top, "samsung,exynos5260-clock-top", diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index deab84d9f37d..a64823627d3a 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -14,6 +14,8 @@ #include #include "clk.h" +static LIST_HEAD(clock_reg_cache_list); + void samsung_clk_save(void __iomem *base, struct samsung_clk_reg_dump *rd, unsigned int num_regs) @@ -313,3 +315,96 @@ unsigned long _get_rate(const char *clk_name) return clk_get_rate(clk); } + +#ifdef CONFIG_PM_SLEEP +static int samsung_clk_suspend(void) +{ + struct samsung_clock_reg_cache *reg_cache; + + list_for_each_entry(reg_cache, &clock_reg_cache_list, node) + samsung_clk_save(reg_cache->reg_base, reg_cache->rdump, + reg_cache->rd_num); + return 0; +} + +static void samsung_clk_resume(void) +{ + struct samsung_clock_reg_cache *reg_cache; + + list_for_each_entry(reg_cache, &clock_reg_cache_list, node) + samsung_clk_restore(reg_cache->reg_base, reg_cache->rdump, + reg_cache->rd_num); +} + +static struct syscore_ops samsung_clk_syscore_ops = { + .suspend = samsung_clk_suspend, + .resume = samsung_clk_resume, +}; + +static void samsung_clk_sleep_init(void __iomem *reg_base, + const unsigned long *rdump, + unsigned long nr_rdump) +{ + struct samsung_clock_reg_cache *reg_cache; + + reg_cache = kzalloc(sizeof(struct samsung_clock_reg_cache), + GFP_KERNEL); + if (!reg_cache) + panic("could not allocate register reg_cache.\n"); + reg_cache->rdump = samsung_clk_alloc_reg_dump(rdump, nr_rdump); + + if (!reg_cache->rdump) + panic("could not allocate register dump storage.\n"); + + if (list_empty(&clock_reg_cache_list)) + register_syscore_ops(&samsung_clk_syscore_ops); + + reg_cache->reg_base = reg_base; + reg_cache->rd_num = nr_rdump; + list_add_tail(®_cache->node, &clock_reg_cache_list); +} + +#else +static void samsung_clk_sleep_init(void __iomem *reg_base, + const unsigned long *rdump, + unsigned long nr_rdump) {} +#endif + +/* + * Common function which registers plls, muxes, dividers and gates + * for each CMU. It also add CMU register list to register cache. + */ +void __init samsung_cmu_register_one(struct device_node *np, + struct samsung_cmu_info *cmu) +{ + void __iomem *reg_base; + struct samsung_clk_provider *ctx; + + reg_base = of_iomap(np, 0); + if (!reg_base) + panic("%s: failed to map registers\n", __func__); + + ctx = samsung_clk_init(np, reg_base, cmu->nr_clk_ids); + if (!ctx) + panic("%s: unable to alllocate ctx\n", __func__); + + if (cmu->pll_clks) + samsung_clk_register_pll(ctx, cmu->pll_clks, cmu->nr_pll_clks, + reg_base); + if (cmu->mux_clks) + samsung_clk_register_mux(ctx, cmu->mux_clks, + cmu->nr_mux_clks); + if (cmu->div_clks) + samsung_clk_register_div(ctx, cmu->div_clks, cmu->nr_div_clks); + if (cmu->gate_clks) + samsung_clk_register_gate(ctx, cmu->gate_clks, + cmu->nr_gate_clks); + if (cmu->fixed_clks) + samsung_clk_register_fixed_rate(ctx, cmu->fixed_clks, + cmu->nr_fixed_clks); + if (cmu->clk_regs) + samsung_clk_sleep_init(reg_base, cmu->clk_regs, + cmu->nr_clk_regs); + + samsung_clk_of_add_provider(np, ctx); +} diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index 66ab36b5cef1..b3d0f4d97f97 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -324,6 +324,37 @@ struct samsung_pll_clock { __PLL(_typ, _id, NULL, _name, _pname, CLK_GET_RATE_NOCACHE, \ _lock, _con, _rtable, _alias) +struct samsung_clock_reg_cache { + struct list_head node; + void __iomem *reg_base; + struct samsung_clk_reg_dump *rdump; + unsigned int rd_num; +}; + +struct samsung_cmu_info { + /* list of pll clocks and respective count */ + struct samsung_pll_clock *pll_clks; + unsigned int nr_pll_clks; + /* list of mux clocks and respective count */ + struct samsung_mux_clock *mux_clks; + unsigned int nr_mux_clks; + /* list of div clocks and respective count */ + struct samsung_div_clock *div_clks; + unsigned int nr_div_clks; + /* list of gate clocks and respective count */ + struct samsung_gate_clock *gate_clks; + unsigned int nr_gate_clks; + /* list of fixed clocks and respective count */ + struct samsung_fixed_rate_clock *fixed_clks; + unsigned int nr_fixed_clks; + /* total number of clocks with IDs assigned*/ + unsigned int nr_clk_ids; + + /* list and number of clocks registers */ + unsigned long *clk_regs; + unsigned int nr_clk_regs; +}; + extern struct samsung_clk_provider *__init samsung_clk_init( struct device_node *np, void __iomem *base, unsigned long nr_clks); @@ -362,6 +393,9 @@ extern void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx, struct samsung_pll_clock *pll_list, unsigned int nr_clk, void __iomem *base); +extern void __init samsung_cmu_register_one(struct device_node *, + struct samsung_cmu_info *); + extern unsigned long _get_rate(const char *clk_name); extern void samsung_clk_save(void __iomem *base, -- cgit v1.2.2 From 0e5af27008f947fe983004d502c3b2c1ddde1029 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Mon, 22 Sep 2014 10:17:03 +0530 Subject: clk: samsung: Add fixed_factor_clocks field to struct exynos_cmu_info Add the fields "fixed_factor_clks" and "nr_fixed_factor_clks" to "struct exynos_cmu_info" to allow registering of fixed factor clocks as well with exynos_cmu_register_one(). Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Reviewed-by: Thomas Abraham Tested-by: Thomas Abraham Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk.c | 3 +++ drivers/clk/samsung/clk.h | 3 +++ 2 files changed, 6 insertions(+) diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index a64823627d3a..dd1f7c977b6b 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -402,6 +402,9 @@ void __init samsung_cmu_register_one(struct device_node *np, if (cmu->fixed_clks) samsung_clk_register_fixed_rate(ctx, cmu->fixed_clks, cmu->nr_fixed_clks); + if (cmu->fixed_factor_clks) + samsung_clk_register_fixed_factor(ctx, cmu->fixed_factor_clks, + cmu->nr_fixed_factor_clks); if (cmu->clk_regs) samsung_clk_sleep_init(reg_base, cmu->clk_regs, cmu->nr_clk_regs); diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index b3d0f4d97f97..3f471e958cb0 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -347,6 +347,9 @@ struct samsung_cmu_info { /* list of fixed clocks and respective count */ struct samsung_fixed_rate_clock *fixed_clks; unsigned int nr_fixed_clks; + /* list of fixed factor clocks and respective count */ + struct samsung_fixed_factor_clock *fixed_factor_clks; + unsigned int nr_fixed_factor_clks; /* total number of clocks with IDs assigned*/ unsigned int nr_clk_ids; -- cgit v1.2.2 From 532abc3a4a4502e13315d246c545d7567c80b03e Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Mon, 22 Sep 2014 10:17:04 +0530 Subject: clk: samsung: add initial clock support for Exynos7 SoC Add initial clock support for Exynos7 SoC which is required to bring up platforms based on Exynos7. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Reviewed-by: Thomas Abraham Tested-by: Thomas Abraham Signed-off-by: Sylwester Nawrocki --- .../devicetree/bindings/clock/exynos7-clock.txt | 67 ++++ drivers/clk/samsung/Makefile | 1 + drivers/clk/samsung/clk-exynos7.c | 425 +++++++++++++++++++++ include/dt-bindings/clock/exynos7-clk.h | 49 +++ 4 files changed, 542 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/exynos7-clock.txt create mode 100644 drivers/clk/samsung/clk-exynos7.c create mode 100644 include/dt-bindings/clock/exynos7-clk.h diff --git a/Documentation/devicetree/bindings/clock/exynos7-clock.txt b/Documentation/devicetree/bindings/clock/exynos7-clock.txt new file mode 100644 index 000000000000..789f76132a85 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/exynos7-clock.txt @@ -0,0 +1,67 @@ +* Samsung Exynos7 Clock Controller + +Exynos7 clock controller has various blocks which are instantiated +independently from the device-tree. These clock controllers +generate and supply clocks to various hardware blocks within +the SoC. + +Each clock is assigned an identifier and client nodes can use +this identifier to specify the clock which they consume. All +available clocks are defined as preprocessor macros in +dt-bindings/clock/exynos7-clk.h header and can be used in +device tree sources. + +External clocks: + +There are several clocks that are generated outside the SoC. It +is expected that they are defined using standard clock bindings +with following clock-output-names: + + - "fin_pll" - PLL input clock from XXTI + +Required Properties for Clock Controller: + + - compatible: clock controllers will use one of the following + compatible strings to indicate the clock controller + functionality. + + - "samsung,exynos7-clock-topc" + - "samsung,exynos7-clock-top0" + - "samsung,exynos7-clock-peric0" + - "samsung,exynos7-clock-peric1" + - "samsung,exynos7-clock-peris" + + - reg: physical base address of the controller and the length of + memory mapped region. + + - #clock-cells: should be 1. + + - clocks: list of clock identifiers which are fed as the input to + the given clock controller. Please refer the next section to + find the input clocks for a given controller. + +- clock-names: list of names of clocks which are fed as the input + to the given clock controller. + +Input clocks for top0 clock controller: + - fin_pll + - dout_sclk_bus0_pll + - dout_sclk_bus1_pll + - dout_sclk_cc_pll + - dout_sclk_mfc_pll + +Input clocks for peric0 clock controller: + - fin_pll + - dout_aclk_peric0_66 + - sclk_uart0 + +Input clocks for peric1 clock controller: + - fin_pll + - dout_aclk_peric1_66 + - sclk_uart1 + - sclk_uart2 + - sclk_uart3 + +Input clocks for peris clock controller: + - fin_pll + - dout_aclk_peris_66 diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile index d8535e6df1db..006c6f294310 100644 --- a/drivers/clk/samsung/Makefile +++ b/drivers/clk/samsung/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-clkout.o +obj-$(CONFIG_ARCH_EXYNOS7) += clk-exynos7.o obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c new file mode 100644 index 000000000000..54206d4d408a --- /dev/null +++ b/drivers/clk/samsung/clk-exynos7.c @@ -0,0 +1,425 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Author: Naveen Krishna Ch + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + +#include +#include +#include +#include + +#include "clk.h" +#include + +/* Register Offset definitions for CMU_TOPC (0x10570000) */ +#define CC_PLL_LOCK 0x0000 +#define BUS0_PLL_LOCK 0x0004 +#define BUS1_DPLL_LOCK 0x0008 +#define MFC_PLL_LOCK 0x000C +#define AUD_PLL_LOCK 0x0010 +#define CC_PLL_CON0 0x0100 +#define BUS0_PLL_CON0 0x0110 +#define BUS1_DPLL_CON0 0x0120 +#define MFC_PLL_CON0 0x0130 +#define AUD_PLL_CON0 0x0140 +#define MUX_SEL_TOPC0 0x0200 +#define MUX_SEL_TOPC1 0x0204 +#define MUX_SEL_TOPC3 0x020C +#define DIV_TOPC1 0x0604 +#define DIV_TOPC3 0x060C + +static struct samsung_fixed_factor_clock topc_fixed_factor_clks[] __initdata = { + FFACTOR(0, "ffac_topc_bus0_pll_div2", "mout_bus0_pll_ctrl", 1, 2, 0), + FFACTOR(0, "ffac_topc_bus0_pll_div4", + "ffac_topc_bus0_pll_div2", 1, 2, 0), + FFACTOR(0, "ffac_topc_bus1_pll_div2", "mout_bus1_pll_ctrl", 1, 2, 0), + FFACTOR(0, "ffac_topc_cc_pll_div2", "mout_cc_pll_ctrl", 1, 2, 0), + FFACTOR(0, "ffac_topc_mfc_pll_div2", "mout_mfc_pll_ctrl", 1, 2, 0), +}; + +/* List of parent clocks for Muxes in CMU_TOPC */ +PNAME(mout_bus0_pll_ctrl_p) = { "fin_pll", "fout_bus0_pll" }; +PNAME(mout_bus1_pll_ctrl_p) = { "fin_pll", "fout_bus1_pll" }; +PNAME(mout_cc_pll_ctrl_p) = { "fin_pll", "fout_cc_pll" }; +PNAME(mout_mfc_pll_ctrl_p) = { "fin_pll", "fout_mfc_pll" }; + +PNAME(mout_topc_group2) = { "mout_sclk_bus0_pll_cmuc", + "mout_sclk_bus1_pll_cmuc", "mout_sclk_cc_pll_cmuc", + "mout_sclk_mfc_pll_cmuc" }; + +PNAME(mout_sclk_bus0_pll_cmuc_p) = { "mout_bus0_pll_ctrl", + "ffac_topc_bus0_pll_div2", "ffac_topc_bus0_pll_div4"}; +PNAME(mout_sclk_bus1_pll_cmuc_p) = { "mout_bus1_pll_ctrl", + "ffac_topc_bus1_pll_div2"}; +PNAME(mout_sclk_cc_pll_cmuc_p) = { "mout_cc_pll_ctrl", + "ffac_topc_cc_pll_div2"}; +PNAME(mout_sclk_mfc_pll_cmuc_p) = { "mout_mfc_pll_ctrl", + "ffac_topc_mfc_pll_div2"}; + + +PNAME(mout_sclk_bus0_pll_out_p) = {"mout_bus0_pll_ctrl", + "ffac_topc_bus0_pll_div2"}; + +static unsigned long topc_clk_regs[] __initdata = { + CC_PLL_LOCK, + BUS0_PLL_LOCK, + BUS1_DPLL_LOCK, + MFC_PLL_LOCK, + AUD_PLL_LOCK, + CC_PLL_CON0, + BUS0_PLL_CON0, + BUS1_DPLL_CON0, + MFC_PLL_CON0, + AUD_PLL_CON0, + MUX_SEL_TOPC0, + MUX_SEL_TOPC1, + MUX_SEL_TOPC3, + DIV_TOPC1, + DIV_TOPC3, +}; + +static struct samsung_mux_clock topc_mux_clks[] __initdata = { + MUX(0, "mout_bus0_pll_ctrl", mout_bus0_pll_ctrl_p, MUX_SEL_TOPC0, 0, 1), + MUX(0, "mout_bus1_pll_ctrl", mout_bus1_pll_ctrl_p, MUX_SEL_TOPC0, 4, 1), + MUX(0, "mout_cc_pll_ctrl", mout_cc_pll_ctrl_p, MUX_SEL_TOPC0, 8, 1), + MUX(0, "mout_mfc_pll_ctrl", mout_mfc_pll_ctrl_p, MUX_SEL_TOPC0, 12, 1), + + MUX(0, "mout_sclk_bus0_pll_cmuc", mout_sclk_bus0_pll_cmuc_p, + MUX_SEL_TOPC0, 16, 2), + MUX(0, "mout_sclk_bus1_pll_cmuc", mout_sclk_bus1_pll_cmuc_p, + MUX_SEL_TOPC0, 20, 1), + MUX(0, "mout_sclk_cc_pll_cmuc", mout_sclk_cc_pll_cmuc_p, + MUX_SEL_TOPC0, 24, 1), + MUX(0, "mout_sclk_mfc_pll_cmuc", mout_sclk_mfc_pll_cmuc_p, + MUX_SEL_TOPC0, 28, 1), + + MUX(0, "mout_sclk_bus0_pll_out", mout_sclk_bus0_pll_out_p, + MUX_SEL_TOPC1, 16, 1), + + MUX(0, "mout_aclk_peris_66", mout_topc_group2, MUX_SEL_TOPC3, 24, 2), +}; + +static struct samsung_div_clock topc_div_clks[] __initdata = { + DIV(DOUT_ACLK_PERIS, "dout_aclk_peris_66", "mout_aclk_peris_66", + DIV_TOPC1, 24, 4), + + DIV(DOUT_SCLK_BUS0_PLL, "dout_sclk_bus0_pll", "mout_sclk_bus0_pll_out", + DIV_TOPC3, 0, 3), + DIV(DOUT_SCLK_BUS1_PLL, "dout_sclk_bus1_pll", "mout_bus1_pll_ctrl", + DIV_TOPC3, 8, 3), + DIV(DOUT_SCLK_CC_PLL, "dout_sclk_cc_pll", "mout_cc_pll_ctrl", + DIV_TOPC3, 12, 3), + DIV(DOUT_SCLK_MFC_PLL, "dout_sclk_mfc_pll", "mout_mfc_pll_ctrl", + DIV_TOPC3, 16, 3), +}; + +static struct samsung_pll_clock topc_pll_clks[] __initdata = { + PLL(pll_1451x, 0, "fout_bus0_pll", "fin_pll", BUS0_PLL_LOCK, + BUS0_PLL_CON0, NULL), + PLL(pll_1452x, 0, "fout_cc_pll", "fin_pll", CC_PLL_LOCK, + CC_PLL_CON0, NULL), + PLL(pll_1452x, 0, "fout_bus1_pll", "fin_pll", BUS1_DPLL_LOCK, + BUS1_DPLL_CON0, NULL), + PLL(pll_1452x, 0, "fout_mfc_pll", "fin_pll", MFC_PLL_LOCK, + MFC_PLL_CON0, NULL), + PLL(pll_1460x, 0, "fout_aud_pll", "fin_pll", AUD_PLL_LOCK, + AUD_PLL_CON0, NULL), +}; + +static struct samsung_cmu_info topc_cmu_info __initdata = { + .pll_clks = topc_pll_clks, + .nr_pll_clks = ARRAY_SIZE(topc_pll_clks), + .mux_clks = topc_mux_clks, + .nr_mux_clks = ARRAY_SIZE(topc_mux_clks), + .div_clks = topc_div_clks, + .nr_div_clks = ARRAY_SIZE(topc_div_clks), + .fixed_factor_clks = topc_fixed_factor_clks, + .nr_fixed_factor_clks = ARRAY_SIZE(topc_fixed_factor_clks), + .nr_clk_ids = TOPC_NR_CLK, + .clk_regs = topc_clk_regs, + .nr_clk_regs = ARRAY_SIZE(topc_clk_regs), +}; + +static void __init exynos7_clk_topc_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &topc_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_topc, "samsung,exynos7-clock-topc", + exynos7_clk_topc_init); + +/* Register Offset definitions for CMU_TOP0 (0x105D0000) */ +#define MUX_SEL_TOP00 0x0200 +#define MUX_SEL_TOP01 0x0204 +#define MUX_SEL_TOP03 0x020C +#define MUX_SEL_TOP0_PERIC3 0x023C +#define DIV_TOP03 0x060C +#define DIV_TOP0_PERIC3 0x063C +#define ENABLE_SCLK_TOP0_PERIC3 0x0A3C + +/* List of parent clocks for Muxes in CMU_TOP0 */ +PNAME(mout_bus0_pll_p) = { "fin_pll", "dout_sclk_bus0_pll" }; +PNAME(mout_bus1_pll_p) = { "fin_pll", "dout_sclk_bus1_pll" }; +PNAME(mout_cc_pll_p) = { "fin_pll", "dout_sclk_cc_pll" }; +PNAME(mout_mfc_pll_p) = { "fin_pll", "dout_sclk_mfc_pll" }; + +PNAME(mout_top0_half_bus0_pll_p) = {"mout_top0_bus0_pll", + "ffac_top0_bus0_pll_div2"}; +PNAME(mout_top0_half_bus1_pll_p) = {"mout_top0_bus1_pll", + "ffac_top0_bus1_pll_div2"}; +PNAME(mout_top0_half_cc_pll_p) = {"mout_top0_cc_pll", + "ffac_top0_cc_pll_div2"}; +PNAME(mout_top0_half_mfc_pll_p) = {"mout_top0_mfc_pll", + "ffac_top0_mfc_pll_div2"}; + +PNAME(mout_top0_group1) = {"mout_top0_half_bus0_pll", + "mout_top0_half_bus1_pll", "mout_top0_half_cc_pll", + "mout_top0_half_mfc_pll"}; + +static unsigned long top0_clk_regs[] __initdata = { + MUX_SEL_TOP00, + MUX_SEL_TOP01, + MUX_SEL_TOP03, + MUX_SEL_TOP0_PERIC3, + DIV_TOP03, + DIV_TOP0_PERIC3, + ENABLE_SCLK_TOP0_PERIC3, +}; + +static struct samsung_mux_clock top0_mux_clks[] __initdata = { + MUX(0, "mout_top0_mfc_pll", mout_mfc_pll_p, MUX_SEL_TOP00, 4, 1), + MUX(0, "mout_top0_cc_pll", mout_cc_pll_p, MUX_SEL_TOP00, 8, 1), + MUX(0, "mout_top0_bus1_pll", mout_bus1_pll_p, MUX_SEL_TOP00, 12, 1), + MUX(0, "mout_top0_bus0_pll", mout_bus0_pll_p, MUX_SEL_TOP00, 16, 1), + + MUX(0, "mout_top0_half_mfc_pll", mout_top0_half_mfc_pll_p, + MUX_SEL_TOP01, 4, 1), + MUX(0, "mout_top0_half_cc_pll", mout_top0_half_cc_pll_p, + MUX_SEL_TOP01, 8, 1), + MUX(0, "mout_top0_half_bus1_pll", mout_top0_half_bus1_pll_p, + MUX_SEL_TOP01, 12, 1), + MUX(0, "mout_top0_half_bus0_pll", mout_top0_half_bus0_pll_p, + MUX_SEL_TOP01, 16, 1), + + MUX(0, "mout_aclk_peric1_66", mout_top0_group1, MUX_SEL_TOP03, 12, 2), + MUX(0, "mout_aclk_peric0_66", mout_top0_group1, MUX_SEL_TOP03, 20, 2), + + MUX(0, "mout_sclk_uart3", mout_top0_group1, MUX_SEL_TOP0_PERIC3, 4, 2), + MUX(0, "mout_sclk_uart2", mout_top0_group1, MUX_SEL_TOP0_PERIC3, 8, 2), + MUX(0, "mout_sclk_uart1", mout_top0_group1, MUX_SEL_TOP0_PERIC3, 12, 2), + MUX(0, "mout_sclk_uart0", mout_top0_group1, MUX_SEL_TOP0_PERIC3, 16, 2), +}; + +static struct samsung_div_clock top0_div_clks[] __initdata = { + DIV(DOUT_ACLK_PERIC1, "dout_aclk_peric1_66", "mout_aclk_peric1_66", + DIV_TOP03, 12, 6), + DIV(DOUT_ACLK_PERIC0, "dout_aclk_peric0_66", "mout_aclk_peric0_66", + DIV_TOP03, 20, 6), + + DIV(0, "dout_sclk_uart3", "mout_sclk_uart3", DIV_TOP0_PERIC3, 4, 4), + DIV(0, "dout_sclk_uart2", "mout_sclk_uart2", DIV_TOP0_PERIC3, 8, 4), + DIV(0, "dout_sclk_uart1", "mout_sclk_uart1", DIV_TOP0_PERIC3, 12, 4), + DIV(0, "dout_sclk_uart0", "mout_sclk_uart0", DIV_TOP0_PERIC3, 16, 4), +}; + +static struct samsung_gate_clock top0_gate_clks[] __initdata = { + GATE(CLK_SCLK_UART3, "sclk_uart3", "dout_sclk_uart3", + ENABLE_SCLK_TOP0_PERIC3, 4, 0, 0), + GATE(CLK_SCLK_UART2, "sclk_uart2", "dout_sclk_uart2", + ENABLE_SCLK_TOP0_PERIC3, 8, 0, 0), + GATE(CLK_SCLK_UART1, "sclk_uart1", "dout_sclk_uart1", + ENABLE_SCLK_TOP0_PERIC3, 12, 0, 0), + GATE(CLK_SCLK_UART0, "sclk_uart0", "dout_sclk_uart0", + ENABLE_SCLK_TOP0_PERIC3, 16, 0, 0), +}; + +static struct samsung_fixed_factor_clock top0_fixed_factor_clks[] __initdata = { + FFACTOR(0, "ffac_top0_bus0_pll_div2", "mout_top0_bus0_pll", 1, 2, 0), + FFACTOR(0, "ffac_top0_bus1_pll_div2", "mout_top0_bus1_pll", 1, 2, 0), + FFACTOR(0, "ffac_top0_cc_pll_div2", "mout_top0_cc_pll", 1, 2, 0), + FFACTOR(0, "ffac_top0_mfc_pll_div2", "mout_top0_mfc_pll", 1, 2, 0), +}; + +static struct samsung_cmu_info top0_cmu_info __initdata = { + .mux_clks = top0_mux_clks, + .nr_mux_clks = ARRAY_SIZE(top0_mux_clks), + .div_clks = top0_div_clks, + .nr_div_clks = ARRAY_SIZE(top0_div_clks), + .gate_clks = top0_gate_clks, + .nr_gate_clks = ARRAY_SIZE(top0_gate_clks), + .fixed_factor_clks = top0_fixed_factor_clks, + .nr_fixed_factor_clks = ARRAY_SIZE(top0_fixed_factor_clks), + .nr_clk_ids = TOP0_NR_CLK, + .clk_regs = top0_clk_regs, + .nr_clk_regs = ARRAY_SIZE(top0_clk_regs), +}; + +static void __init exynos7_clk_top0_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &top0_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_top0, "samsung,exynos7-clock-top0", + exynos7_clk_top0_init); + +/* Register Offset definitions for CMU_PERIC0 (0x13610000) */ +#define MUX_SEL_PERIC0 0x0200 +#define ENABLE_PCLK_PERIC0 0x0900 +#define ENABLE_SCLK_PERIC0 0x0A00 + +/* List of parent clocks for Muxes in CMU_PERIC0 */ +PNAME(mout_aclk_peric0_66_p) = { "fin_pll", "dout_aclk_peric0_66" }; +PNAME(mout_sclk_uart0_p) = { "fin_pll", "sclk_uart0" }; + +static unsigned long peric0_clk_regs[] __initdata = { + MUX_SEL_PERIC0, + ENABLE_PCLK_PERIC0, + ENABLE_SCLK_PERIC0, +}; + +static struct samsung_mux_clock peric0_mux_clks[] __initdata = { + MUX(0, "mout_aclk_peric0_66_user", mout_aclk_peric0_66_p, + MUX_SEL_PERIC0, 0, 1), + MUX(0, "mout_sclk_uart0_user", mout_sclk_uart0_p, + MUX_SEL_PERIC0, 16, 1), +}; + +static struct samsung_gate_clock peric0_gate_clks[] __initdata = { + GATE(PCLK_UART0, "pclk_uart0", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 16, 0, 0), + + GATE(SCLK_UART0, "sclk_uart0_user", "mout_sclk_uart0_user", + ENABLE_SCLK_PERIC0, 16, 0, 0), +}; + +static struct samsung_cmu_info peric0_cmu_info __initdata = { + .mux_clks = peric0_mux_clks, + .nr_mux_clks = ARRAY_SIZE(peric0_mux_clks), + .gate_clks = peric0_gate_clks, + .nr_gate_clks = ARRAY_SIZE(peric0_gate_clks), + .nr_clk_ids = PERIC0_NR_CLK, + .clk_regs = peric0_clk_regs, + .nr_clk_regs = ARRAY_SIZE(peric0_clk_regs), +}; + +static void __init exynos7_clk_peric0_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &peric0_cmu_info); +} + +/* Register Offset definitions for CMU_PERIC1 (0x14C80000) */ +#define MUX_SEL_PERIC10 0x0200 +#define MUX_SEL_PERIC11 0x0204 +#define ENABLE_PCLK_PERIC1 0x0900 +#define ENABLE_SCLK_PERIC10 0x0A00 + +CLK_OF_DECLARE(exynos7_clk_peric0, "samsung,exynos7-clock-peric0", + exynos7_clk_peric0_init); + +/* List of parent clocks for Muxes in CMU_PERIC1 */ +PNAME(mout_aclk_peric1_66_p) = { "fin_pll", "dout_aclk_peric1_66" }; +PNAME(mout_sclk_uart1_p) = { "fin_pll", "sclk_uart1" }; +PNAME(mout_sclk_uart2_p) = { "fin_pll", "sclk_uart2" }; +PNAME(mout_sclk_uart3_p) = { "fin_pll", "sclk_uart3" }; + +static unsigned long peric1_clk_regs[] __initdata = { + MUX_SEL_PERIC10, + MUX_SEL_PERIC11, + ENABLE_PCLK_PERIC1, + ENABLE_SCLK_PERIC10, +}; + +static struct samsung_mux_clock peric1_mux_clks[] __initdata = { + MUX(0, "mout_aclk_peric1_66_user", mout_aclk_peric1_66_p, + MUX_SEL_PERIC10, 0, 1), + + MUX(0, "mout_sclk_uart1_user", mout_sclk_uart1_p, + MUX_SEL_PERIC11, 20, 1), + MUX(0, "mout_sclk_uart2_user", mout_sclk_uart2_p, + MUX_SEL_PERIC11, 24, 1), + MUX(0, "mout_sclk_uart3_user", mout_sclk_uart3_p, + MUX_SEL_PERIC11, 28, 1), +}; + +static struct samsung_gate_clock peric1_gate_clks[] __initdata = { + GATE(PCLK_UART1, "pclk_uart1", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 9, 0, 0), + GATE(PCLK_UART2, "pclk_uart2", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 10, 0, 0), + GATE(PCLK_UART3, "pclk_uart3", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 11, 0, 0), + + GATE(SCLK_UART1, "sclk_uart1_user", "mout_sclk_uart1_user", + ENABLE_SCLK_PERIC10, 9, 0, 0), + GATE(SCLK_UART2, "sclk_uart2_user", "mout_sclk_uart2_user", + ENABLE_SCLK_PERIC10, 10, 0, 0), + GATE(SCLK_UART3, "sclk_uart3_user", "mout_sclk_uart3_user", + ENABLE_SCLK_PERIC10, 11, 0, 0), +}; + +static struct samsung_cmu_info peric1_cmu_info __initdata = { + .mux_clks = peric1_mux_clks, + .nr_mux_clks = ARRAY_SIZE(peric1_mux_clks), + .gate_clks = peric1_gate_clks, + .nr_gate_clks = ARRAY_SIZE(peric1_gate_clks), + .nr_clk_ids = PERIC1_NR_CLK, + .clk_regs = peric1_clk_regs, + .nr_clk_regs = ARRAY_SIZE(peric1_clk_regs), +}; + +static void __init exynos7_clk_peric1_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &peric1_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_peric1, "samsung,exynos7-clock-peric1", + exynos7_clk_peric1_init); + +/* Register Offset definitions for CMU_PERIS (0x10040000) */ +#define MUX_SEL_PERIS 0x0200 +#define ENABLE_PCLK_PERIS_SECURE_CHIPID 0x0910 +#define ENABLE_SCLK_PERIS_SECURE_CHIPID 0x0A10 + +/* List of parent clocks for Muxes in CMU_PERIS */ +PNAME(mout_aclk_peris_66_p) = { "fin_pll", "dout_aclk_peris_66" }; + +static unsigned long peris_clk_regs[] __initdata = { + MUX_SEL_PERIS, + ENABLE_PCLK_PERIS_SECURE_CHIPID, + ENABLE_SCLK_PERIS_SECURE_CHIPID, +}; + +static struct samsung_mux_clock peris_mux_clks[] __initdata = { + MUX(0, "mout_aclk_peris_66_user", + mout_aclk_peris_66_p, MUX_SEL_PERIS, 0, 1), +}; + +static struct samsung_gate_clock peris_gate_clks[] __initdata = { + GATE(PCLK_CHIPID, "pclk_chipid", "mout_aclk_peris_66_user", + ENABLE_PCLK_PERIS_SECURE_CHIPID, 0, 0, 0), + GATE(SCLK_CHIPID, "sclk_chipid", "fin_pll", + ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, 0, 0), +}; + +static struct samsung_cmu_info peris_cmu_info __initdata = { + .mux_clks = peris_mux_clks, + .nr_mux_clks = ARRAY_SIZE(peris_mux_clks), + .gate_clks = peris_gate_clks, + .nr_gate_clks = ARRAY_SIZE(peris_gate_clks), + .nr_clk_ids = PERIS_NR_CLK, + .clk_regs = peris_clk_regs, + .nr_clk_regs = ARRAY_SIZE(peris_clk_regs), +}; + +static void __init exynos7_clk_peris_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &peris_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_peris, "samsung,exynos7-clock-peris", + exynos7_clk_peris_init); diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h new file mode 100644 index 000000000000..00fd6de1cb25 --- /dev/null +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * Author: Naveen Krishna Ch + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef _DT_BINDINGS_CLOCK_EXYNOS7_H +#define _DT_BINDINGS_CLOCK_EXYNOS7_H + +/* TOPC */ +#define DOUT_ACLK_PERIS 1 +#define DOUT_SCLK_BUS0_PLL 2 +#define DOUT_SCLK_BUS1_PLL 3 +#define DOUT_SCLK_CC_PLL 4 +#define DOUT_SCLK_MFC_PLL 5 +#define TOPC_NR_CLK 6 + +/* TOP0 */ +#define DOUT_ACLK_PERIC1 1 +#define DOUT_ACLK_PERIC0 2 +#define CLK_SCLK_UART0 3 +#define CLK_SCLK_UART1 4 +#define CLK_SCLK_UART2 5 +#define CLK_SCLK_UART3 6 +#define TOP0_NR_CLK 7 + +/* PERIC0 */ +#define PCLK_UART0 1 +#define SCLK_UART0 2 +#define PERIC0_NR_CLK 3 + +/* PERIC1 */ +#define PCLK_UART1 1 +#define PCLK_UART2 2 +#define PCLK_UART3 3 +#define SCLK_UART1 4 +#define SCLK_UART2 5 +#define SCLK_UART3 6 +#define PERIC1_NR_CLK 7 + +/* PERIS */ +#define PCLK_CHIPID 1 +#define SCLK_CHIPID 2 +#define PERIS_NR_CLK 3 + +#endif /* _DT_BINDINGS_CLOCK_EXYNOS7_H */ -- cgit v1.2.2 From 57a2b485fa512be47b479077b5f89e1bfe536709 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Tue, 21 Oct 2014 11:13:51 +0530 Subject: clk: samsung: exynos7: add clocks for I2C block Exynos7 supports 12 I2C channels, add the I2C gate clocks to support them. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos7.c | 24 ++++++++++++++++++++++++ include/dt-bindings/clock/exynos7-clk.h | 16 ++++++++++++++-- 2 files changed, 38 insertions(+), 2 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index 54206d4d408a..c700f654289e 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -290,6 +290,20 @@ static struct samsung_mux_clock peric0_mux_clks[] __initdata = { }; static struct samsung_gate_clock peric0_gate_clks[] __initdata = { + GATE(PCLK_HSI2C0, "pclk_hsi2c0", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 8, 0, 0), + GATE(PCLK_HSI2C1, "pclk_hsi2c1", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 9, 0, 0), + GATE(PCLK_HSI2C4, "pclk_hsi2c4", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 10, 0, 0), + GATE(PCLK_HSI2C5, "pclk_hsi2c5", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 11, 0, 0), + GATE(PCLK_HSI2C9, "pclk_hsi2c9", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 12, 0, 0), + GATE(PCLK_HSI2C10, "pclk_hsi2c10", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 13, 0, 0), + GATE(PCLK_HSI2C11, "pclk_hsi2c11", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 14, 0, 0), GATE(PCLK_UART0, "pclk_uart0", "mout_aclk_peric0_66_user", ENABLE_PCLK_PERIC0, 16, 0, 0), @@ -347,6 +361,16 @@ static struct samsung_mux_clock peric1_mux_clks[] __initdata = { }; static struct samsung_gate_clock peric1_gate_clks[] __initdata = { + GATE(PCLK_HSI2C2, "pclk_hsi2c2", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 4, 0, 0), + GATE(PCLK_HSI2C3, "pclk_hsi2c3", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 5, 0, 0), + GATE(PCLK_HSI2C6, "pclk_hsi2c6", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 6, 0, 0), + GATE(PCLK_HSI2C7, "pclk_hsi2c7", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 7, 0, 0), + GATE(PCLK_HSI2C8, "pclk_hsi2c8", "mout_aclk_peric1_66_user", + ENABLE_PCLK_PERIC1, 8, 0, 0), GATE(PCLK_UART1, "pclk_uart1", "mout_aclk_peric1_66_user", ENABLE_PCLK_PERIC1, 9, 0, 0), GATE(PCLK_UART2, "pclk_uart2", "mout_aclk_peric1_66_user", diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h index 00fd6de1cb25..6d07b6f1d615 100644 --- a/include/dt-bindings/clock/exynos7-clk.h +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -30,7 +30,14 @@ /* PERIC0 */ #define PCLK_UART0 1 #define SCLK_UART0 2 -#define PERIC0_NR_CLK 3 +#define PCLK_HSI2C0 3 +#define PCLK_HSI2C1 4 +#define PCLK_HSI2C4 5 +#define PCLK_HSI2C5 6 +#define PCLK_HSI2C9 7 +#define PCLK_HSI2C10 8 +#define PCLK_HSI2C11 9 +#define PERIC0_NR_CLK 10 /* PERIC1 */ #define PCLK_UART1 1 @@ -39,7 +46,12 @@ #define SCLK_UART1 4 #define SCLK_UART2 5 #define SCLK_UART3 6 -#define PERIC1_NR_CLK 7 +#define PCLK_HSI2C2 7 +#define PCLK_HSI2C3 8 +#define PCLK_HSI2C6 9 +#define PCLK_HSI2C7 10 +#define PCLK_HSI2C8 11 +#define PERIC1_NR_CLK 12 /* PERIS */ #define PCLK_CHIPID 1 -- cgit v1.2.2 From 6d0c8c723f0b886f58263c089831fd2bee0b3b57 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Tue, 21 Oct 2014 11:13:52 +0530 Subject: clk: samsung: exynos7: add clocks for MMC block Exynos7 supports 3 MMC channels, add the MMC gate clocks to support them. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Signed-off-by: Sylwester Nawrocki --- .../devicetree/bindings/clock/exynos7-clock.txt | 21 ++ drivers/clk/samsung/clk-exynos7.c | 224 +++++++++++++++++++++ include/dt-bindings/clock/exynos7-clk.h | 20 ++ 3 files changed, 265 insertions(+) diff --git a/Documentation/devicetree/bindings/clock/exynos7-clock.txt b/Documentation/devicetree/bindings/clock/exynos7-clock.txt index 789f76132a85..b29cb50048c6 100644 --- a/Documentation/devicetree/bindings/clock/exynos7-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos7-clock.txt @@ -27,9 +27,12 @@ Required Properties for Clock Controller: - "samsung,exynos7-clock-topc" - "samsung,exynos7-clock-top0" + - "samsung,exynos7-clock-top1" - "samsung,exynos7-clock-peric0" - "samsung,exynos7-clock-peric1" - "samsung,exynos7-clock-peris" + - "samsung,exynos7-clock-fsys0" + - "samsung,exynos7-clock-fsys1" - reg: physical base address of the controller and the length of memory mapped region. @@ -50,6 +53,13 @@ Input clocks for top0 clock controller: - dout_sclk_cc_pll - dout_sclk_mfc_pll +Input clocks for top1 clock controller: + - fin_pll + - dout_sclk_bus0_pll + - dout_sclk_bus1_pll + - dout_sclk_cc_pll + - dout_sclk_mfc_pll + Input clocks for peric0 clock controller: - fin_pll - dout_aclk_peric0_66 @@ -65,3 +75,14 @@ Input clocks for peric1 clock controller: Input clocks for peris clock controller: - fin_pll - dout_aclk_peris_66 + +Input clocks for fsys0 clock controller: + - fin_pll + - dout_aclk_fsys0_200 + - dout_sclk_mmc2 + +Input clocks for fsys1 clock controller: + - fin_pll + - dout_aclk_fsys1_200 + - dout_sclk_mmc0 + - dout_sclk_mmc1 diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index c700f654289e..f5e43fab1951 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -267,6 +267,132 @@ static void __init exynos7_clk_top0_init(struct device_node *np) CLK_OF_DECLARE(exynos7_clk_top0, "samsung,exynos7-clock-top0", exynos7_clk_top0_init); +/* Register Offset definitions for CMU_TOP1 (0x105E0000) */ +#define MUX_SEL_TOP10 0x0200 +#define MUX_SEL_TOP11 0x0204 +#define MUX_SEL_TOP13 0x020C +#define MUX_SEL_TOP1_FSYS0 0x0224 +#define MUX_SEL_TOP1_FSYS1 0x0228 +#define DIV_TOP13 0x060C +#define DIV_TOP1_FSYS0 0x0624 +#define DIV_TOP1_FSYS1 0x0628 +#define ENABLE_ACLK_TOP13 0x080C +#define ENABLE_SCLK_TOP1_FSYS0 0x0A24 +#define ENABLE_SCLK_TOP1_FSYS1 0x0A28 + +/* List of parent clocks for Muxes in CMU_TOP1 */ +PNAME(mout_top1_bus0_pll_p) = { "fin_pll", "dout_sclk_bus0_pll" }; +PNAME(mout_top1_bus1_pll_p) = { "fin_pll", "dout_sclk_bus1_pll_b" }; +PNAME(mout_top1_cc_pll_p) = { "fin_pll", "dout_sclk_cc_pll_b" }; +PNAME(mout_top1_mfc_pll_p) = { "fin_pll", "dout_sclk_mfc_pll_b" }; + +PNAME(mout_top1_half_bus0_pll_p) = {"mout_top1_bus0_pll", + "ffac_top1_bus0_pll_div2"}; +PNAME(mout_top1_half_bus1_pll_p) = {"mout_top1_bus1_pll", + "ffac_top1_bus1_pll_div2"}; +PNAME(mout_top1_half_cc_pll_p) = {"mout_top1_cc_pll", + "ffac_top1_cc_pll_div2"}; +PNAME(mout_top1_half_mfc_pll_p) = {"mout_top1_mfc_pll", + "ffac_top1_mfc_pll_div2"}; + +PNAME(mout_top1_group1) = {"mout_top1_half_bus0_pll", + "mout_top1_half_bus1_pll", "mout_top1_half_cc_pll", + "mout_top1_half_mfc_pll"}; + +static unsigned long top1_clk_regs[] __initdata = { + MUX_SEL_TOP10, + MUX_SEL_TOP11, + MUX_SEL_TOP13, + MUX_SEL_TOP1_FSYS0, + MUX_SEL_TOP1_FSYS1, + DIV_TOP13, + DIV_TOP1_FSYS0, + DIV_TOP1_FSYS1, + ENABLE_ACLK_TOP13, + ENABLE_SCLK_TOP1_FSYS0, + ENABLE_SCLK_TOP1_FSYS1, +}; + +static struct samsung_mux_clock top1_mux_clks[] __initdata = { + MUX(0, "mout_top1_mfc_pll", mout_top1_mfc_pll_p, MUX_SEL_TOP10, 4, 1), + MUX(0, "mout_top1_cc_pll", mout_top1_cc_pll_p, MUX_SEL_TOP10, 8, 1), + MUX(0, "mout_top1_bus1_pll", mout_top1_bus1_pll_p, + MUX_SEL_TOP10, 12, 1), + MUX(0, "mout_top1_bus0_pll", mout_top1_bus0_pll_p, + MUX_SEL_TOP10, 16, 1), + + MUX(0, "mout_top1_half_mfc_pll", mout_top1_half_mfc_pll_p, + MUX_SEL_TOP11, 4, 1), + MUX(0, "mout_top1_half_cc_pll", mout_top1_half_cc_pll_p, + MUX_SEL_TOP11, 8, 1), + MUX(0, "mout_top1_half_bus1_pll", mout_top1_half_bus1_pll_p, + MUX_SEL_TOP11, 12, 1), + MUX(0, "mout_top1_half_bus0_pll", mout_top1_half_bus0_pll_p, + MUX_SEL_TOP11, 16, 1), + + MUX(0, "mout_aclk_fsys1_200", mout_top1_group1, MUX_SEL_TOP13, 24, 2), + MUX(0, "mout_aclk_fsys0_200", mout_top1_group1, MUX_SEL_TOP13, 28, 2), + + MUX(0, "mout_sclk_mmc2", mout_top1_group1, MUX_SEL_TOP1_FSYS0, 24, 2), + + MUX(0, "mout_sclk_mmc1", mout_top1_group1, MUX_SEL_TOP1_FSYS1, 24, 2), + MUX(0, "mout_sclk_mmc0", mout_top1_group1, MUX_SEL_TOP1_FSYS1, 28, 2), +}; + +static struct samsung_div_clock top1_div_clks[] __initdata = { + DIV(DOUT_ACLK_FSYS1_200, "dout_aclk_fsys1_200", "mout_aclk_fsys1_200", + DIV_TOP13, 24, 4), + DIV(DOUT_ACLK_FSYS0_200, "dout_aclk_fsys0_200", "mout_aclk_fsys0_200", + DIV_TOP13, 28, 4), + + DIV(DOUT_SCLK_MMC2, "dout_sclk_mmc2", "mout_sclk_mmc2", + DIV_TOP1_FSYS0, 24, 4), + + DIV(DOUT_SCLK_MMC1, "dout_sclk_mmc1", "mout_sclk_mmc1", + DIV_TOP1_FSYS1, 24, 4), + DIV(DOUT_SCLK_MMC0, "dout_sclk_mmc0", "mout_sclk_mmc0", + DIV_TOP1_FSYS1, 28, 4), +}; + +static struct samsung_gate_clock top1_gate_clks[] __initdata = { + GATE(CLK_SCLK_MMC2, "sclk_mmc2", "dout_sclk_mmc2", + ENABLE_SCLK_TOP1_FSYS0, 24, CLK_SET_RATE_PARENT, 0), + + GATE(CLK_SCLK_MMC1, "sclk_mmc1", "dout_sclk_mmc1", + ENABLE_SCLK_TOP1_FSYS1, 24, CLK_SET_RATE_PARENT, 0), + GATE(CLK_SCLK_MMC0, "sclk_mmc0", "dout_sclk_mmc0", + ENABLE_SCLK_TOP1_FSYS1, 28, CLK_SET_RATE_PARENT, 0), +}; + +static struct samsung_fixed_factor_clock top1_fixed_factor_clks[] __initdata = { + FFACTOR(0, "ffac_top1_bus0_pll_div2", "mout_top1_bus0_pll", 1, 2, 0), + FFACTOR(0, "ffac_top1_bus1_pll_div2", "mout_top1_bus1_pll", 1, 2, 0), + FFACTOR(0, "ffac_top1_cc_pll_div2", "mout_top1_cc_pll", 1, 2, 0), + FFACTOR(0, "ffac_top1_mfc_pll_div2", "mout_top1_mfc_pll", 1, 2, 0), +}; + +static struct samsung_cmu_info top1_cmu_info __initdata = { + .mux_clks = top1_mux_clks, + .nr_mux_clks = ARRAY_SIZE(top1_mux_clks), + .div_clks = top1_div_clks, + .nr_div_clks = ARRAY_SIZE(top1_div_clks), + .gate_clks = top1_gate_clks, + .nr_gate_clks = ARRAY_SIZE(top1_gate_clks), + .fixed_factor_clks = top1_fixed_factor_clks, + .nr_fixed_factor_clks = ARRAY_SIZE(top1_fixed_factor_clks), + .nr_clk_ids = TOP1_NR_CLK, + .clk_regs = top1_clk_regs, + .nr_clk_regs = ARRAY_SIZE(top1_clk_regs), +}; + +static void __init exynos7_clk_top1_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &top1_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_top1, "samsung,exynos7-clock-top1", + exynos7_clk_top1_init); + /* Register Offset definitions for CMU_PERIC0 (0x13610000) */ #define MUX_SEL_PERIC0 0x0200 #define ENABLE_PCLK_PERIC0 0x0900 @@ -447,3 +573,101 @@ static void __init exynos7_clk_peris_init(struct device_node *np) CLK_OF_DECLARE(exynos7_clk_peris, "samsung,exynos7-clock-peris", exynos7_clk_peris_init); + +/* Register Offset definitions for CMU_FSYS0 (0x10E90000) */ +#define MUX_SEL_FSYS00 0x0200 +#define MUX_SEL_FSYS01 0x0204 +#define ENABLE_ACLK_FSYS01 0x0804 + +/* + * List of parent clocks for Muxes in CMU_FSYS0 + */ +PNAME(mout_aclk_fsys0_200_p) = { "fin_pll", "dout_aclk_fsys0_200" }; +PNAME(mout_sclk_mmc2_p) = { "fin_pll", "sclk_mmc2" }; + +static unsigned long fsys0_clk_regs[] __initdata = { + MUX_SEL_FSYS00, + MUX_SEL_FSYS01, + ENABLE_ACLK_FSYS01, +}; + +static struct samsung_mux_clock fsys0_mux_clks[] __initdata = { + MUX(0, "mout_aclk_fsys0_200_user", mout_aclk_fsys0_200_p, + MUX_SEL_FSYS00, 24, 1), + + MUX(0, "mout_sclk_mmc2_user", mout_sclk_mmc2_p, MUX_SEL_FSYS01, 24, 1), +}; + +static struct samsung_gate_clock fsys0_gate_clks[] __initdata = { + GATE(ACLK_MMC2, "aclk_mmc2", "mout_aclk_fsys0_200_user", + ENABLE_ACLK_FSYS01, 31, 0, 0), +}; + +static struct samsung_cmu_info fsys0_cmu_info __initdata = { + .mux_clks = fsys0_mux_clks, + .nr_mux_clks = ARRAY_SIZE(fsys0_mux_clks), + .gate_clks = fsys0_gate_clks, + .nr_gate_clks = ARRAY_SIZE(fsys0_gate_clks), + .nr_clk_ids = TOP1_NR_CLK, + .clk_regs = fsys0_clk_regs, + .nr_clk_regs = ARRAY_SIZE(fsys0_clk_regs), +}; + +static void __init exynos7_clk_fsys0_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &fsys0_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_fsys0, "samsung,exynos7-clock-fsys0", + exynos7_clk_fsys0_init); + +/* Register Offset definitions for CMU_FSYS1 (0x156E0000) */ +#define MUX_SEL_FSYS10 0x0200 +#define MUX_SEL_FSYS11 0x0204 +#define ENABLE_ACLK_FSYS1 0x0800 + +/* + * List of parent clocks for Muxes in CMU_FSYS1 + */ +PNAME(mout_aclk_fsys1_200_p) = { "fin_pll", "dout_aclk_fsys1_200" }; +PNAME(mout_sclk_mmc0_p) = { "fin_pll", "sclk_mmc0" }; +PNAME(mout_sclk_mmc1_p) = { "fin_pll", "sclk_mmc1" }; + +static unsigned long fsys1_clk_regs[] __initdata = { + MUX_SEL_FSYS10, + MUX_SEL_FSYS11, + ENABLE_ACLK_FSYS1, +}; + +static struct samsung_mux_clock fsys1_mux_clks[] __initdata = { + MUX(0, "mout_aclk_fsys1_200_user", mout_aclk_fsys1_200_p, + MUX_SEL_FSYS10, 28, 1), + + MUX(0, "mout_sclk_mmc1_user", mout_sclk_mmc1_p, MUX_SEL_FSYS11, 24, 1), + MUX(0, "mout_sclk_mmc0_user", mout_sclk_mmc0_p, MUX_SEL_FSYS11, 28, 1), +}; + +static struct samsung_gate_clock fsys1_gate_clks[] __initdata = { + GATE(ACLK_MMC1, "aclk_mmc1", "mout_aclk_fsys1_200_user", + ENABLE_ACLK_FSYS1, 29, 0, 0), + GATE(ACLK_MMC0, "aclk_mmc0", "mout_aclk_fsys1_200_user", + ENABLE_ACLK_FSYS1, 30, 0, 0), +}; + +static struct samsung_cmu_info fsys1_cmu_info __initdata = { + .mux_clks = fsys1_mux_clks, + .nr_mux_clks = ARRAY_SIZE(fsys1_mux_clks), + .gate_clks = fsys1_gate_clks, + .nr_gate_clks = ARRAY_SIZE(fsys1_gate_clks), + .nr_clk_ids = TOP1_NR_CLK, + .clk_regs = fsys1_clk_regs, + .nr_clk_regs = ARRAY_SIZE(fsys1_clk_regs), +}; + +static void __init exynos7_clk_fsys1_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &fsys1_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_fsys1, "samsung,exynos7-clock-fsys1", + exynos7_clk_fsys1_init); diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h index 6d07b6f1d615..ff63c4e15cc5 100644 --- a/include/dt-bindings/clock/exynos7-clk.h +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -27,6 +27,17 @@ #define CLK_SCLK_UART3 6 #define TOP0_NR_CLK 7 +/* TOP1 */ +#define DOUT_ACLK_FSYS1_200 1 +#define DOUT_ACLK_FSYS0_200 2 +#define DOUT_SCLK_MMC2 3 +#define DOUT_SCLK_MMC1 4 +#define DOUT_SCLK_MMC0 5 +#define CLK_SCLK_MMC2 6 +#define CLK_SCLK_MMC1 7 +#define CLK_SCLK_MMC0 8 +#define TOP1_NR_CLK 9 + /* PERIC0 */ #define PCLK_UART0 1 #define SCLK_UART0 2 @@ -58,4 +69,13 @@ #define SCLK_CHIPID 2 #define PERIS_NR_CLK 3 +/* FSYS0 */ +#define ACLK_MMC2 1 +#define FSYS0_NR_CLK 2 + +/* FSYS1 */ +#define ACLK_MMC1 1 +#define ACLK_MMC0 2 +#define FSYS1_NR_CLK 3 + #endif /* _DT_BINDINGS_CLOCK_EXYNOS7_H */ -- cgit v1.2.2 From f5e127cd5ee52b3f0edaeeb7a40c0b9599f4e691 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Tue, 28 Oct 2014 16:48:53 +0530 Subject: clk: samsung: exynos7: add clocks for RTC block Add clock support for the RTC block in Exynos7. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Signed-off-by: Sylwester Nawrocki --- .../devicetree/bindings/clock/exynos7-clock.txt | 5 ++ drivers/clk/samsung/clk-exynos7.c | 54 ++++++++++++++++++++++ include/dt-bindings/clock/exynos7-clk.h | 7 ++- 3 files changed, 65 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/clock/exynos7-clock.txt b/Documentation/devicetree/bindings/clock/exynos7-clock.txt index b29cb50048c6..6d3d5f80c1c3 100644 --- a/Documentation/devicetree/bindings/clock/exynos7-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos7-clock.txt @@ -28,6 +28,7 @@ Required Properties for Clock Controller: - "samsung,exynos7-clock-topc" - "samsung,exynos7-clock-top0" - "samsung,exynos7-clock-top1" + - "samsung,exynos7-clock-ccore" - "samsung,exynos7-clock-peric0" - "samsung,exynos7-clock-peric1" - "samsung,exynos7-clock-peris" @@ -60,6 +61,10 @@ Input clocks for top1 clock controller: - dout_sclk_cc_pll - dout_sclk_mfc_pll +Input clocks for ccore clock controller: + - fin_pll + - dout_aclk_ccore_133 + Input clocks for peric0 clock controller: - fin_pll - dout_aclk_peric0_66 diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index f5e43fab1951..3a30f43fa925 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -29,7 +29,9 @@ #define AUD_PLL_CON0 0x0140 #define MUX_SEL_TOPC0 0x0200 #define MUX_SEL_TOPC1 0x0204 +#define MUX_SEL_TOPC2 0x0208 #define MUX_SEL_TOPC3 0x020C +#define DIV_TOPC0 0x0600 #define DIV_TOPC1 0x0604 #define DIV_TOPC3 0x060C @@ -78,7 +80,9 @@ static unsigned long topc_clk_regs[] __initdata = { AUD_PLL_CON0, MUX_SEL_TOPC0, MUX_SEL_TOPC1, + MUX_SEL_TOPC2, MUX_SEL_TOPC3, + DIV_TOPC0, DIV_TOPC1, DIV_TOPC3, }; @@ -101,10 +105,15 @@ static struct samsung_mux_clock topc_mux_clks[] __initdata = { MUX(0, "mout_sclk_bus0_pll_out", mout_sclk_bus0_pll_out_p, MUX_SEL_TOPC1, 16, 1), + MUX(0, "mout_aclk_ccore_133", mout_topc_group2, MUX_SEL_TOPC2, 4, 2), + MUX(0, "mout_aclk_peris_66", mout_topc_group2, MUX_SEL_TOPC3, 24, 2), }; static struct samsung_div_clock topc_div_clks[] __initdata = { + DIV(DOUT_ACLK_CCORE_133, "dout_aclk_ccore_133", "mout_aclk_ccore_133", + DIV_TOPC0, 4, 4), + DIV(DOUT_ACLK_PERIS, "dout_aclk_peris_66", "mout_aclk_peris_66", DIV_TOPC1, 24, 4), @@ -393,6 +402,51 @@ static void __init exynos7_clk_top1_init(struct device_node *np) CLK_OF_DECLARE(exynos7_clk_top1, "samsung,exynos7-clock-top1", exynos7_clk_top1_init); +/* Register Offset definitions for CMU_CCORE (0x105B0000) */ +#define MUX_SEL_CCORE 0x0200 +#define DIV_CCORE 0x0600 +#define ENABLE_ACLK_CCORE0 0x0800 +#define ENABLE_ACLK_CCORE1 0x0804 +#define ENABLE_PCLK_CCORE 0x0900 + +/* + * List of parent clocks for Muxes in CMU_CCORE + */ +PNAME(mout_aclk_ccore_133_p) = { "fin_pll", "dout_aclk_ccore_133" }; + +static unsigned long ccore_clk_regs[] __initdata = { + MUX_SEL_CCORE, + ENABLE_PCLK_CCORE, +}; + +static struct samsung_mux_clock ccore_mux_clks[] __initdata = { + MUX(0, "mout_aclk_ccore_133_user", mout_aclk_ccore_133_p, + MUX_SEL_CCORE, 1, 1), +}; + +static struct samsung_gate_clock ccore_gate_clks[] __initdata = { + GATE(PCLK_RTC, "pclk_rtc", "mout_aclk_ccore_133_user", + ENABLE_PCLK_CCORE, 8, 0, 0), +}; + +static struct samsung_cmu_info ccore_cmu_info __initdata = { + .mux_clks = ccore_mux_clks, + .nr_mux_clks = ARRAY_SIZE(ccore_mux_clks), + .gate_clks = ccore_gate_clks, + .nr_gate_clks = ARRAY_SIZE(ccore_gate_clks), + .nr_clk_ids = CCORE_NR_CLK, + .clk_regs = ccore_clk_regs, + .nr_clk_regs = ARRAY_SIZE(ccore_clk_regs), +}; + +static void __init exynos7_clk_ccore_init(struct device_node *np) +{ + samsung_cmu_register_one(np, &ccore_cmu_info); +} + +CLK_OF_DECLARE(exynos7_clk_ccore, "samsung,exynos7-clock-ccore", + exynos7_clk_ccore_init); + /* Register Offset definitions for CMU_PERIC0 (0x13610000) */ #define MUX_SEL_PERIC0 0x0200 #define ENABLE_PCLK_PERIC0 0x0900 diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h index ff63c4e15cc5..dd89aa0f84e1 100644 --- a/include/dt-bindings/clock/exynos7-clk.h +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -16,7 +16,8 @@ #define DOUT_SCLK_BUS1_PLL 3 #define DOUT_SCLK_CC_PLL 4 #define DOUT_SCLK_MFC_PLL 5 -#define TOPC_NR_CLK 6 +#define DOUT_ACLK_CCORE_133 6 +#define TOPC_NR_CLK 7 /* TOP0 */ #define DOUT_ACLK_PERIC1 1 @@ -38,6 +39,10 @@ #define CLK_SCLK_MMC0 8 #define TOP1_NR_CLK 9 +/* CCORE */ +#define PCLK_RTC 1 +#define CCORE_NR_CLK 2 + /* PERIC0 */ #define PCLK_UART0 1 #define SCLK_UART0 2 -- cgit v1.2.2 From 2ab2dfe5d4eef6bad8cdd90dc6bba5a7660273d4 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Ch Date: Tue, 28 Oct 2014 16:48:54 +0530 Subject: clk: samsung: exynos7: add gate clocks for WDT, TMU and PWM blocks Add clock support for the watchdog timer, pwm timer and thermal management unit IPs in Exynos7. Signed-off-by: Naveen Krishna Ch Signed-off-by: Abhilash Kesavan Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos7.c | 14 ++++++++++++++ include/dt-bindings/clock/exynos7-clk.h | 9 +++++++-- 2 files changed, 21 insertions(+), 2 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index 3a30f43fa925..17e5cf4d2248 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -486,9 +486,12 @@ static struct samsung_gate_clock peric0_gate_clks[] __initdata = { ENABLE_PCLK_PERIC0, 14, 0, 0), GATE(PCLK_UART0, "pclk_uart0", "mout_aclk_peric0_66_user", ENABLE_PCLK_PERIC0, 16, 0, 0), + GATE(PCLK_PWM, "pclk_pwm", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 21, 0, 0), GATE(SCLK_UART0, "sclk_uart0_user", "mout_sclk_uart0_user", ENABLE_SCLK_PERIC0, 16, 0, 0), + GATE(SCLK_PWM, "sclk_pwm", "fin_pll", ENABLE_SCLK_PERIC0, 21, 0, 0), }; static struct samsung_cmu_info peric0_cmu_info __initdata = { @@ -586,7 +589,9 @@ CLK_OF_DECLARE(exynos7_clk_peric1, "samsung,exynos7-clock-peric1", /* Register Offset definitions for CMU_PERIS (0x10040000) */ #define MUX_SEL_PERIS 0x0200 +#define ENABLE_PCLK_PERIS 0x0900 #define ENABLE_PCLK_PERIS_SECURE_CHIPID 0x0910 +#define ENABLE_SCLK_PERIS 0x0A00 #define ENABLE_SCLK_PERIS_SECURE_CHIPID 0x0A10 /* List of parent clocks for Muxes in CMU_PERIS */ @@ -594,7 +599,9 @@ PNAME(mout_aclk_peris_66_p) = { "fin_pll", "dout_aclk_peris_66" }; static unsigned long peris_clk_regs[] __initdata = { MUX_SEL_PERIS, + ENABLE_PCLK_PERIS, ENABLE_PCLK_PERIS_SECURE_CHIPID, + ENABLE_SCLK_PERIS, ENABLE_SCLK_PERIS_SECURE_CHIPID, }; @@ -604,10 +611,17 @@ static struct samsung_mux_clock peris_mux_clks[] __initdata = { }; static struct samsung_gate_clock peris_gate_clks[] __initdata = { + GATE(PCLK_WDT, "pclk_wdt", "mout_aclk_peris_66_user", + ENABLE_PCLK_PERIS, 6, 0, 0), + GATE(PCLK_TMU, "pclk_tmu_apbif", "mout_aclk_peris_66_user", + ENABLE_PCLK_PERIS, 10, 0, 0), + GATE(PCLK_CHIPID, "pclk_chipid", "mout_aclk_peris_66_user", ENABLE_PCLK_PERIS_SECURE_CHIPID, 0, 0, 0), GATE(SCLK_CHIPID, "sclk_chipid", "fin_pll", ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, 0, 0), + + GATE(SCLK_TMU, "sclk_tmu", "fin_pll", ENABLE_SCLK_PERIS, 10, 0, 0), }; static struct samsung_cmu_info peris_cmu_info __initdata = { diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h index dd89aa0f84e1..f255bb7c64b3 100644 --- a/include/dt-bindings/clock/exynos7-clk.h +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -53,7 +53,9 @@ #define PCLK_HSI2C9 7 #define PCLK_HSI2C10 8 #define PCLK_HSI2C11 9 -#define PERIC0_NR_CLK 10 +#define PCLK_PWM 10 +#define SCLK_PWM 11 +#define PERIC0_NR_CLK 12 /* PERIC1 */ #define PCLK_UART1 1 @@ -72,7 +74,10 @@ /* PERIS */ #define PCLK_CHIPID 1 #define SCLK_CHIPID 2 -#define PERIS_NR_CLK 3 +#define PCLK_WDT 3 +#define PCLK_TMU 4 +#define SCLK_TMU 5 +#define PERIS_NR_CLK 6 /* FSYS0 */ #define ACLK_MMC2 1 -- cgit v1.2.2 From 932e98224d5602be17ed61d0e057e9326f12b59d Mon Sep 17 00:00:00 2001 From: Abhilash Kesavan Date: Tue, 28 Oct 2014 16:48:55 +0530 Subject: clk: samsung: exynos7: add gate clock for ADC block Add clock support for the ADC interface in Exynos7. Signed-off-by: Abhilash Kesavan Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos7.c | 2 ++ include/dt-bindings/clock/exynos7-clk.h | 3 ++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index 17e5cf4d2248..ea4483b8d62e 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -486,6 +486,8 @@ static struct samsung_gate_clock peric0_gate_clks[] __initdata = { ENABLE_PCLK_PERIC0, 14, 0, 0), GATE(PCLK_UART0, "pclk_uart0", "mout_aclk_peric0_66_user", ENABLE_PCLK_PERIC0, 16, 0, 0), + GATE(PCLK_ADCIF, "pclk_adcif", "mout_aclk_peric0_66_user", + ENABLE_PCLK_PERIC0, 20, 0, 0), GATE(PCLK_PWM, "pclk_pwm", "mout_aclk_peric0_66_user", ENABLE_PCLK_PERIC0, 21, 0, 0), diff --git a/include/dt-bindings/clock/exynos7-clk.h b/include/dt-bindings/clock/exynos7-clk.h index f255bb7c64b3..8e4681b07ae7 100644 --- a/include/dt-bindings/clock/exynos7-clk.h +++ b/include/dt-bindings/clock/exynos7-clk.h @@ -55,7 +55,8 @@ #define PCLK_HSI2C11 9 #define PCLK_PWM 10 #define SCLK_PWM 11 -#define PERIC0_NR_CLK 12 +#define PCLK_ADCIF 12 +#define PERIC0_NR_CLK 13 /* PERIC1 */ #define PCLK_UART1 1 -- cgit v1.2.2 From 78eaf6095cc763c1a228ebac5682852f04e85205 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Tue, 4 Nov 2014 17:11:10 +0800 Subject: clk: rockchip: disable unused clocks The rockchip clock driver use CLK_IGNORE_UNUSED flag to make sure all the clocks are available like default power on state. We have implement the clock manage in most of rockchip drivers, it is time to remove it for power save. Instead we add CLK_IGNORE_UNUSED for some clock nodes which should be on during boot or no module driver in kernel will initialize it. Signed-off-by: Kever Yang Reviewed-by: Doug Anderson Tested-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3188.c | 38 +++++------ drivers/clk/rockchip/clk-rk3288.c | 128 +++++++++++++++++++------------------- drivers/clk/rockchip/clk.c | 9 --- 3 files changed, 83 insertions(+), 92 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index beed49c79126..4dfd5e249347 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -257,9 +257,9 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { GATE(0, "hclk_vdpu", "aclk_vdpu", 0, RK2928_CLKGATE_CON(3), 12, GFLAGS), - GATE(0, "gpll_ddr", "gpll", 0, + GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(1), 7, GFLAGS), - COMPOSITE(0, "ddrphy", mux_ddrphy_p, 0, + COMPOSITE(0, "ddrphy", mux_ddrphy_p, CLK_IGNORE_UNUSED, RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, RK2928_CLKGATE_CON(0), 2, GFLAGS), @@ -270,10 +270,10 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { RK2928_CLKGATE_CON(0), 6, GFLAGS), GATE(0, "pclk_cpu", "pclk_cpu_pre", 0, RK2928_CLKGATE_CON(0), 5, GFLAGS), - GATE(0, "hclk_cpu", "hclk_cpu_pre", 0, + GATE(0, "hclk_cpu", "hclk_cpu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(0), 4, GFLAGS), - COMPOSITE(0, "aclk_lcdc0_pre", mux_pll_src_cpll_gpll_p, 0, + COMPOSITE(0, "aclk_lcdc0_pre", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED, RK2928_CLKSEL_CON(31), 7, 1, MFLAGS, 0, 5, DFLAGS, RK2928_CLKGATE_CON(3), 0, GFLAGS), COMPOSITE(0, "aclk_lcdc1_pre", mux_pll_src_cpll_gpll_p, 0, @@ -304,9 +304,9 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { * the 480m are generated inside the usb block from these clocks, * but they are also a source for the hsicphy clock. */ - GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", 0, + GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(1), 5, GFLAGS), - GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", 0, + GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(1), 6, GFLAGS), COMPOSITE(0, "mac_src", mux_mac_p, 0, @@ -399,8 +399,8 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { /* aclk_cpu gates */ GATE(ACLK_DMA1, "aclk_dma1", "aclk_cpu", 0, RK2928_CLKGATE_CON(5), 0, GFLAGS), - GATE(0, "aclk_intmem", "aclk_cpu", 0, RK2928_CLKGATE_CON(4), 12, GFLAGS), - GATE(0, "aclk_strc_sys", "aclk_cpu", 0, RK2928_CLKGATE_CON(4), 10, GFLAGS), + GATE(0, "aclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS), + GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS), /* hclk_cpu gates */ GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", 0, RK2928_CLKGATE_CON(5), 6, GFLAGS), @@ -416,8 +416,8 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { GATE(HCLK_RGA, "hclk_rga", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 10, GFLAGS), /* hclk_peri gates */ - GATE(0, "hclk_peri_axi_matrix", "hclk_peri", 0, RK2928_CLKGATE_CON(4), 0, GFLAGS), - GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", 0, RK2928_CLKGATE_CON(4), 6, GFLAGS), + GATE(0, "hclk_peri_axi_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS), + GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 6, GFLAGS), GATE(0, "hclk_emem_peri", "hclk_peri", 0, RK2928_CLKGATE_CON(4), 7, GFLAGS), GATE(HCLK_EMAC, "hclk_emac", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS), GATE(HCLK_NANDC0, "hclk_nandc0", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS), @@ -457,18 +457,18 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { GATE(0, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS), GATE(0, "pclk_ddrpubl", "pclk_cpu", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS), GATE(0, "pclk_dbg", "pclk_cpu", 0, RK2928_CLKGATE_CON(9), 1, GFLAGS), - GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 4, GFLAGS), - GATE(PCLK_PMU, "pclk_pmu", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 5, GFLAGS), + GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS), + GATE(PCLK_PMU, "pclk_pmu", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 5, GFLAGS), /* aclk_peri */ GATE(ACLK_DMA2, "aclk_dma2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS), GATE(ACLK_SMC, "aclk_smc", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 8, GFLAGS), - GATE(0, "aclk_peri_niu", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 4, GFLAGS), - GATE(0, "aclk_cpu_peri", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 2, GFLAGS), - GATE(0, "aclk_peri_axi_matrix", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 3, GFLAGS), + GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 4, GFLAGS), + GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS), + GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS), /* pclk_peri gates */ - GATE(0, "pclk_peri_axi_matrix", "pclk_peri", 0, RK2928_CLKGATE_CON(4), 1, GFLAGS), + GATE(0, "pclk_peri_axi_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS), GATE(PCLK_PWM23, "pclk_pwm23", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 11, GFLAGS), GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS), GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS), @@ -511,7 +511,7 @@ static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = { | CLK_DIVIDER_READ_ONLY, RK2928_CLKGATE_CON(4), 9, GFLAGS), - GATE(CORE_L2C, "core_l2c", "aclk_cpu", 0, + GATE(CORE_L2C, "core_l2c", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 4, GFLAGS), COMPOSITE(0, "aclk_peri_pre", mux_pll_src_gpll_cpll_p, 0, @@ -618,7 +618,7 @@ PNAME(mux_hsicphy_p) = { "sclk_otgphy0", "sclk_otgphy1", "gpll", "cpll" }; static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = { - COMPOSITE_NOMUX_DIVTBL(0, "aclk_core", "armclk", 0, + COMPOSITE_NOMUX_DIVTBL(0, "aclk_core", "armclk", CLK_IGNORE_UNUSED, RK2928_CLKSEL_CON(1), 3, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, div_rk3188_aclk_core_t, RK2928_CLKGATE_CON(0), 7, GFLAGS), @@ -633,7 +633,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = { RK2928_CLKSEL_CON(1), 14, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, RK2928_CLKGATE_CON(4), 9, GFLAGS), - GATE(CORE_L2C, "core_l2c", "armclk", 0, + GATE(CORE_L2C, "core_l2c", "armclk", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 4, GFLAGS), COMPOSITE(0, "aclk_peri_pre", mux_pll_src_cpll_gpll_p, 0, diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 279a662f5bd7..bd9534a00737 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -228,67 +228,67 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { * Clock-Architecture Diagram 1 */ - GATE(0, "apll_core", "apll", 0, + GATE(0, "apll_core", "apll", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 1, GFLAGS), - GATE(0, "gpll_core", "gpll", 0, + GATE(0, "gpll_core", "gpll", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 2, GFLAGS), - COMPOSITE_NOMUX(0, "armcore0", "armclk", 0, + COMPOSITE_NOMUX(0, "armcore0", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(36), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 0, GFLAGS), - COMPOSITE_NOMUX(0, "armcore1", "armclk", 0, + COMPOSITE_NOMUX(0, "armcore1", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(36), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 1, GFLAGS), - COMPOSITE_NOMUX(0, "armcore2", "armclk", 0, + COMPOSITE_NOMUX(0, "armcore2", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(36), 8, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 2, GFLAGS), - COMPOSITE_NOMUX(0, "armcore3", "armclk", 0, + COMPOSITE_NOMUX(0, "armcore3", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(36), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 3, GFLAGS), - COMPOSITE_NOMUX(0, "l2ram", "armclk", 0, + COMPOSITE_NOMUX(0, "l2ram", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(37), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 4, GFLAGS), - COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", 0, + COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(0), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 5, GFLAGS), - COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", 0, + COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(0), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 6, GFLAGS), COMPOSITE_NOMUX(0, "atclk", "armclk", 0, RK3288_CLKSEL_CON(37), 4, 5, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 7, GFLAGS), - COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", 0, + COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(37), 9, 5, DFLAGS | CLK_DIVIDER_READ_ONLY, RK3288_CLKGATE_CON(12), 8, GFLAGS), GATE(0, "pclk_dbg", "pclk_dbg_pre", 0, RK3288_CLKGATE_CON(12), 9, GFLAGS), - GATE(0, "cs_dbg", "pclk_dbg_pre", 0, + GATE(0, "cs_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(12), 10, GFLAGS), GATE(0, "pclk_core_niu", "pclk_dbg_pre", 0, RK3288_CLKGATE_CON(12), 11, GFLAGS), - GATE(0, "dpll_ddr", "dpll", 0, + GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 8, GFLAGS), GATE(0, "gpll_ddr", "gpll", 0, RK3288_CLKGATE_CON(0), 9, GFLAGS), - COMPOSITE_NOGATE(0, "ddrphy", mux_ddrphy_p, 0, + COMPOSITE_NOGATE(0, "ddrphy", mux_ddrphy_p, CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(26), 2, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), - GATE(0, "gpll_aclk_cpu", "gpll", 0, + GATE(0, "gpll_aclk_cpu", "gpll", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 10, GFLAGS), - GATE(0, "cpll_aclk_cpu", "cpll", 0, + GATE(0, "cpll_aclk_cpu", "cpll", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 11, GFLAGS), - COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, 0, + COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(1), 15, 1, MFLAGS, 3, 5, DFLAGS), DIV(0, "aclk_cpu_pre", "aclk_cpu_src", CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(1), 0, 3, DFLAGS), - GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", 0, + GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 3, GFLAGS), - COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_pre", 0, + COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(1), 12, 3, DFLAGS, RK3288_CLKGATE_CON(0), 5, GFLAGS), - COMPOSITE_NOMUX_DIVTBL(HCLK_CPU, "hclk_cpu", "aclk_cpu_pre", 0, + COMPOSITE_NOMUX_DIVTBL(HCLK_CPU, "hclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(1), 8, 2, DFLAGS, div_hclk_cpu_t, RK3288_CLKGATE_CON(0), 4, GFLAGS), GATE(0, "c2c_host", "aclk_cpu_src", 0, @@ -296,7 +296,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NOMUX(0, "crypto", "aclk_cpu_pre", 0, RK3288_CLKSEL_CON(26), 6, 2, DFLAGS, RK3288_CLKGATE_CON(5), 4, GFLAGS), - GATE(0, "aclk_bus_2pmu", "aclk_cpu_pre", 0, + GATE(0, "aclk_bus_2pmu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(0), 7, GFLAGS), COMPOSITE(0, "i2s_src", mux_pll_src_cpll_gpll_p, 0, @@ -375,12 +375,12 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(HCLK_VCODEC, "hclk_vcodec", "hclk_vcodec_pre", 0, RK3288_CLKGATE_CON(9), 1, GFLAGS), - COMPOSITE(0, "aclk_vio0", mux_pll_src_cpll_gpll_usb480m_p, 0, + COMPOSITE(0, "aclk_vio0", mux_pll_src_cpll_gpll_usb480m_p, CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(31), 6, 2, MFLAGS, 0, 5, DFLAGS, RK3288_CLKGATE_CON(3), 0, GFLAGS), DIV(0, "hclk_vio", "aclk_vio0", 0, RK3288_CLKSEL_CON(28), 8, 5, DFLAGS), - COMPOSITE(0, "aclk_vio1", mux_pll_src_cpll_gpll_usb480m_p, 0, + COMPOSITE(0, "aclk_vio1", mux_pll_src_cpll_gpll_usb480m_p, CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(3), 2, GFLAGS), @@ -438,7 +438,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { DIV(0, "pclk_pd_alive", "gpll", 0, RK3288_CLKSEL_CON(33), 8, 5, DFLAGS), - COMPOSITE_NOMUX(0, "pclk_pd_pmu", "gpll", 0, + COMPOSITE_NOMUX(0, "pclk_pd_pmu", "gpll", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(33), 0, 5, DFLAGS, RK3288_CLKGATE_CON(5), 8, GFLAGS), @@ -446,16 +446,16 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKSEL_CON(34), 6, 2, MFLAGS, 0, 5, DFLAGS, RK3288_CLKGATE_CON(5), 7, GFLAGS), - COMPOSITE(0, "aclk_peri_src", mux_pll_src_cpll_gpll_p, 0, + COMPOSITE(0, "aclk_peri_src", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(10), 15, 1, MFLAGS, 0, 5, DFLAGS, RK3288_CLKGATE_CON(2), 0, GFLAGS), COMPOSITE_NOMUX(PCLK_PERI, "pclk_peri", "aclk_peri_src", 0, RK3288_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, RK3288_CLKGATE_CON(2), 3, GFLAGS), - COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", 0, + COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED, RK3288_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, RK3288_CLKGATE_CON(2), 2, GFLAGS), - GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0, + GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(2), 1, GFLAGS), /* @@ -492,13 +492,13 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKSEL_CON(35), 6, 2, MFLAGS, 0, 5, DFLAGS, RK3288_CLKGATE_CON(4), 10, GFLAGS), - GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", 0, + GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(13), 4, GFLAGS), - GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", 0, + GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(13), 5, GFLAGS), - GATE(SCLK_OTGPHY2, "sclk_otgphy2", "usb480m", 0, + GATE(SCLK_OTGPHY2, "sclk_otgphy2", "usb480m", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(13), 6, GFLAGS), - GATE(SCLK_OTG_ADP, "sclk_otg_adp", "xin32k", 0, + GATE(SCLK_OTG_ADP, "sclk_otg_adp", "xin32k", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(13), 7, GFLAGS), COMPOSITE_NOMUX(SCLK_TSADC, "sclk_tsadc", "xin32k", 0, @@ -603,19 +603,19 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { */ /* aclk_cpu gates */ - GATE(0, "sclk_intmem0", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 5, GFLAGS), - GATE(0, "sclk_intmem1", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 6, GFLAGS), - GATE(0, "sclk_intmem2", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 7, GFLAGS), + GATE(0, "sclk_intmem0", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 5, GFLAGS), + GATE(0, "sclk_intmem1", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 6, GFLAGS), + GATE(0, "sclk_intmem2", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 7, GFLAGS), GATE(ACLK_DMAC1, "aclk_dmac1", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 12, GFLAGS), - GATE(0, "aclk_strc_sys", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 13, GFLAGS), - GATE(0, "aclk_intmem", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 4, GFLAGS), + GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 13, GFLAGS), + GATE(0, "aclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 4, GFLAGS), GATE(ACLK_CRYPTO, "aclk_crypto", "aclk_cpu", 0, RK3288_CLKGATE_CON(11), 6, GFLAGS), GATE(0, "aclk_ccp", "aclk_cpu", 0, RK3288_CLKGATE_CON(11), 8, GFLAGS), /* hclk_cpu gates */ GATE(HCLK_CRYPTO, "hclk_crypto", "hclk_cpu", 0, RK3288_CLKGATE_CON(11), 7, GFLAGS), GATE(HCLK_I2S0, "hclk_i2s0", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 8, GFLAGS), - GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 9, GFLAGS), + GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 9, GFLAGS), GATE(HCLK_SPDIF, "hclk_spdif", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 10, GFLAGS), GATE(HCLK_SPDIF8CH, "hclk_spdif_8ch", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 11, GFLAGS), @@ -632,34 +632,34 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS), GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS), GATE(0, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS), - GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 11, GFLAGS), + GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 11, GFLAGS), /* ddrctrl [DDR Controller PHY clock] gates */ - GATE(0, "nclk_ddrupctl0", "ddrphy", 0, RK3288_CLKGATE_CON(11), 4, GFLAGS), - GATE(0, "nclk_ddrupctl1", "ddrphy", 0, RK3288_CLKGATE_CON(11), 5, GFLAGS), + GATE(0, "nclk_ddrupctl0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 4, GFLAGS), + GATE(0, "nclk_ddrupctl1", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 5, GFLAGS), /* ddrphy gates */ - GATE(0, "sclk_ddrphy0", "ddrphy", 0, RK3288_CLKGATE_CON(4), 12, GFLAGS), - GATE(0, "sclk_ddrphy1", "ddrphy", 0, RK3288_CLKGATE_CON(4), 13, GFLAGS), + GATE(0, "sclk_ddrphy0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(4), 12, GFLAGS), + GATE(0, "sclk_ddrphy1", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(4), 13, GFLAGS), /* aclk_peri gates */ - GATE(0, "aclk_peri_axi_matrix", "aclk_peri", 0, RK3288_CLKGATE_CON(6), 2, GFLAGS), + GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 2, GFLAGS), GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK3288_CLKGATE_CON(6), 3, GFLAGS), - GATE(0, "aclk_peri_niu", "aclk_peri", 0, RK3288_CLKGATE_CON(7), 11, GFLAGS), - GATE(ACLK_MMU, "aclk_mmu", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 12, GFLAGS), + GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 11, GFLAGS), + GATE(ACLK_MMU, "aclk_mmu", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(8), 12, GFLAGS), GATE(ACLK_GMAC, "aclk_gmac", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 0, GFLAGS), GATE(HCLK_GPS, "hclk_gps", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 2, GFLAGS), /* hclk_peri gates */ - GATE(0, "hclk_peri_matrix", "hclk_peri", 0, RK3288_CLKGATE_CON(6), 0, GFLAGS), - GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 4, GFLAGS), + GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 0, GFLAGS), + GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 4, GFLAGS), GATE(HCLK_USBHOST0, "hclk_host0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 6, GFLAGS), - GATE(HCLK_USBHOST1, "hclk_host1", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 7, GFLAGS), + GATE(HCLK_USBHOST1, "hclk_host1", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 7, GFLAGS), GATE(HCLK_HSIC, "hclk_hsic", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 8, GFLAGS), - GATE(0, "hclk_usb_peri", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 9, GFLAGS), - GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 10, GFLAGS), - GATE(0, "hclk_emem", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 12, GFLAGS), - GATE(0, "hclk_mem", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 13, GFLAGS), + GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 9, GFLAGS), + GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 10, GFLAGS), + GATE(0, "hclk_emem", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 12, GFLAGS), + GATE(0, "hclk_mem", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 13, GFLAGS), GATE(HCLK_NANDC0, "hclk_nandc0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 14, GFLAGS), GATE(HCLK_NANDC1, "hclk_nandc1", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 15, GFLAGS), GATE(HCLK_TSP, "hclk_tsp", "hclk_peri", 0, RK3288_CLKGATE_CON(8), 8, GFLAGS), @@ -671,7 +671,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(0, "pmu_hclk_otg0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 5, GFLAGS), /* pclk_peri gates */ - GATE(0, "pclk_peri_matrix", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 1, GFLAGS), + GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 1, GFLAGS), GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 4, GFLAGS), GATE(PCLK_SPI1, "pclk_spi1", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 5, GFLAGS), GATE(PCLK_SPI2, "pclk_spi2", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 6, GFLAGS), @@ -707,22 +707,22 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_GPIO4, "pclk_gpio4", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 4, GFLAGS), GATE(PCLK_GPIO5, "pclk_gpio5", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 5, GFLAGS), GATE(PCLK_GPIO6, "pclk_gpio6", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 6, GFLAGS), - GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 11, GFLAGS), - GATE(0, "pclk_alive_niu", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 12, GFLAGS), + GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(14), 11, GFLAGS), + GATE(0, "pclk_alive_niu", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(14), 12, GFLAGS), /* pclk_pd_pmu gates */ - GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 0, GFLAGS), - GATE(0, "pclk_intmem1", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 1, GFLAGS), - GATE(0, "pclk_pmu_niu", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 2, GFLAGS), - GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 3, GFLAGS), + GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 0, GFLAGS), + GATE(0, "pclk_intmem1", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 1, GFLAGS), + GATE(0, "pclk_pmu_niu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 2, GFLAGS), + GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 3, GFLAGS), GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 4, GFLAGS), /* hclk_vio gates */ GATE(HCLK_RGA, "hclk_rga", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 1, GFLAGS), GATE(HCLK_VOP0, "hclk_vop0", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 6, GFLAGS), GATE(HCLK_VOP1, "hclk_vop1", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 8, GFLAGS), - GATE(HCLK_VIO_AHB_ARBI, "hclk_vio_ahb_arbi", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 9, GFLAGS), - GATE(HCLK_VIO_NIU, "hclk_vio_niu", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 10, GFLAGS), + GATE(HCLK_VIO_AHB_ARBI, "hclk_vio_ahb_arbi", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 9, GFLAGS), + GATE(HCLK_VIO_NIU, "hclk_vio_niu", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 10, GFLAGS), GATE(HCLK_VIP, "hclk_vip", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 15, GFLAGS), GATE(HCLK_IEP, "hclk_iep", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 3, GFLAGS), GATE(HCLK_ISP, "hclk_isp", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 1, GFLAGS), @@ -731,24 +731,24 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_MIPI_DSI1, "pclk_mipi_dsi1", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 5, GFLAGS), GATE(PCLK_MIPI_CSI, "pclk_mipi_csi", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 6, GFLAGS), GATE(PCLK_LVDS_PHY, "pclk_lvds_phy", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 7, GFLAGS), - GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 8, GFLAGS), + GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(16), 8, GFLAGS), GATE(PCLK_HDMI_CTRL, "pclk_hdmi_ctrl", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 9, GFLAGS), GATE(PCLK_VIO2_H2P, "pclk_vio2_h2p", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 11, GFLAGS), /* aclk_vio0 gates */ GATE(ACLK_VOP0, "aclk_vop0", "aclk_vio0", 0, RK3288_CLKGATE_CON(15), 5, GFLAGS), GATE(ACLK_IEP, "aclk_iep", "aclk_vio0", 0, RK3288_CLKGATE_CON(15), 2, GFLAGS), - GATE(ACLK_VIO0_NIU, "aclk_vio0_niu", "aclk_vio0", 0, RK3288_CLKGATE_CON(15), 11, GFLAGS), + GATE(ACLK_VIO0_NIU, "aclk_vio0_niu", "aclk_vio0", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 11, GFLAGS), GATE(ACLK_VIP, "aclk_vip", "aclk_vio0", 0, RK3288_CLKGATE_CON(15), 14, GFLAGS), /* aclk_vio1 gates */ GATE(ACLK_VOP1, "aclk_vop1", "aclk_vio1", 0, RK3288_CLKGATE_CON(15), 7, GFLAGS), GATE(ACLK_ISP, "aclk_isp", "aclk_vio1", 0, RK3288_CLKGATE_CON(16), 2, GFLAGS), - GATE(ACLK_VIO1_NIU, "aclk_vio1_niu", "aclk_vio1", 0, RK3288_CLKGATE_CON(15), 12, GFLAGS), + GATE(ACLK_VIO1_NIU, "aclk_vio1_niu", "aclk_vio1", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 12, GFLAGS), /* aclk_rga_pre gates */ GATE(ACLK_RGA, "aclk_rga", "aclk_rga_pre", 0, RK3288_CLKGATE_CON(15), 0, GFLAGS), - GATE(ACLK_RGA_NIU, "aclk_rga_niu", "aclk_rga_pre", 0, RK3288_CLKGATE_CON(15), 13, GFLAGS), + GATE(ACLK_RGA_NIU, "aclk_rga_niu", "aclk_rga_pre", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 13, GFLAGS), /* * Other ungrouped clocks. diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index 1e68bff481b8..dec6f8d6dc13 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -246,9 +246,6 @@ void __init rockchip_clk_register_branches( list->div_flags, &clk_lock); break; case branch_fraction_divider: - /* keep all gates untouched for now */ - flags |= CLK_IGNORE_UNUSED; - clk = rockchip_clk_register_frac_branch(list->name, list->parent_names, list->num_parents, reg_base, list->muxdiv_offset, list->div_flags, @@ -258,18 +255,12 @@ void __init rockchip_clk_register_branches( case branch_gate: flags |= CLK_SET_RATE_PARENT; - /* keep all gates untouched for now */ - flags |= CLK_IGNORE_UNUSED; - clk = clk_register_gate(NULL, list->name, list->parent_names[0], flags, reg_base + list->gate_offset, list->gate_shift, list->gate_flags, &clk_lock); break; case branch_composite: - /* keep all gates untouched for now */ - flags |= CLK_IGNORE_UNUSED; - clk = rockchip_clk_register_branch(list->name, list->parent_names, list->num_parents, reg_base, list->muxdiv_offset, list->mux_shift, -- cgit v1.2.2 From d1f931be7cfb5458d90a4642fda8b4da6b266a84 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Heiko=20St=C3=BCbner?= Date: Thu, 30 Oct 2014 14:26:13 +0100 Subject: clk: rockchip: fix rk3188 hsadc_frac definition The arguments to COMPOSITE_FRAC for hsadc_frac were mangled, leaving out the the general clock flags argument. This results in strange effects, as only sometimes a zero-division is reported as the wrong register is read. Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3188.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index 4dfd5e249347..f88eb7dacd97 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -320,9 +320,9 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { COMPOSITE(0, "hsadc_src", mux_pll_src_gpll_cpll_p, 0, RK2928_CLKSEL_CON(22), 0, 1, MFLAGS, 8, 8, DFLAGS, RK2928_CLKGATE_CON(2), 6, GFLAGS), - COMPOSITE_FRAC(0, "hsadc_frac", "hsadc_src", + COMPOSITE_FRAC(0, "hsadc_frac", "hsadc_src", 0, RK2928_CLKSEL_CON(23), 0, - RK2928_CLKGATE_CON(2), 7, 0, GFLAGS), + RK2928_CLKGATE_CON(2), 7, GFLAGS), MUX(SCLK_HSADC, "sclk_hsadc", mux_sclk_hsadc_p, 0, RK2928_CLKSEL_CON(22), 4, 2, MFLAGS), -- cgit v1.2.2 From 33aa59c232adf9eb9be2936b9f5dc76850a050c1 Mon Sep 17 00:00:00 2001 From: Chris Zhong Date: Fri, 7 Nov 2014 21:49:33 +0800 Subject: clk: rockchip: rk3288: add suspend and resume save and restore some clks, which might be changed in suspend. Signed-off-by: Tony Xie Signed-off-by: Chris Zhong Reviewed-by: Doug Anderson Tested-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 60 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index bd9534a00737..1a9d03cf2b00 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include "clk.h" @@ -764,6 +765,64 @@ static const char *rk3288_critical_clocks[] __initconst = { "hclk_peri", }; +#ifdef CONFIG_PM_SLEEP +static void __iomem *rk3288_cru_base; + +/* Some CRU registers will be reset in maskrom when the system + * wakes up from fastboot. + * So save them before suspend, restore them after resume. + */ +static const int rk3288_saved_cru_reg_ids[] = { + RK3288_MODE_CON, + RK3288_CLKSEL_CON(0), + RK3288_CLKSEL_CON(1), + RK3288_CLKSEL_CON(10), + RK3288_CLKSEL_CON(33), + RK3288_CLKSEL_CON(37), +}; + +static u32 rk3288_saved_cru_regs[ARRAY_SIZE(rk3288_saved_cru_reg_ids)]; + +static int rk3288_clk_suspend(void) +{ + int i, reg_id; + + for (i = 0; i < ARRAY_SIZE(rk3288_saved_cru_reg_ids); i++) { + reg_id = rk3288_saved_cru_reg_ids[i]; + + rk3288_saved_cru_regs[i] = + readl_relaxed(rk3288_cru_base + reg_id); + } + return 0; +} + +static void rk3288_clk_resume(void) +{ + int i, reg_id; + + for (i = ARRAY_SIZE(rk3288_saved_cru_reg_ids) - 1; i >= 0; i--) { + reg_id = rk3288_saved_cru_reg_ids[i]; + + writel_relaxed(rk3288_saved_cru_regs[i] | 0xffff0000, + rk3288_cru_base + reg_id); + } +} + +static struct syscore_ops rk3288_clk_syscore_ops = { + .suspend = rk3288_clk_suspend, + .resume = rk3288_clk_resume, +}; + +static void rk3288_clk_sleep_init(void __iomem *reg_base) +{ + rk3288_cru_base = reg_base; + register_syscore_ops(&rk3288_clk_syscore_ops); +} + +#else /* CONFIG_PM_SLEEP */ +static void rk3288_clk_sleep_init(void __iomem *reg_base) {} +#endif + static void __init rk3288_clk_init(struct device_node *np) { void __iomem *reg_base; @@ -812,5 +871,6 @@ static void __init rk3288_clk_init(struct device_node *np) ROCKCHIP_SOFTRST_HIWORD_MASK); rockchip_register_restart_notifier(RK3288_GLB_SRST_FST); + rk3288_clk_sleep_init(reg_base); } CLK_OF_DECLARE(rk3288_cru, "rockchip,rk3288-cru", rk3288_clk_init); -- cgit v1.2.2 From 93746e70be83a3f113134a16065957b324af50f7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Emilio=20L=C3=B3pez?= Date: Thu, 6 Nov 2014 11:40:29 +0800 Subject: clk: sunxi: unify APB1 clock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This commit unifies the APB1 mux with the APB1 clock, using the new factors infrastructure. Signed-off-by: Emilio López [wens@csie.org: Add mux mask bits] Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/clock/sunxi.txt | 1 - drivers/clk/sunxi/clk-sunxi.c | 7 ++----- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index 0455cb9caa97..6ddcf6e10eb8 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -45,7 +45,6 @@ Required properties: "allwinner,sun9i-a80-apb0-gates-clk" - for the APB0 gates on A80 "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock "allwinner,sun9i-a80-apb1-clk" - for the APB1 bus clock on A80 - "allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing "allwinner,sun4i-a10-apb1-gates-clk" - for the APB1 gates on A10 "allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13 "allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 20f47c68a946..4133e278212b 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -507,6 +507,8 @@ static const struct factors_data sun6i_a31_pll6_data __initconst = { }; static const struct factors_data sun4i_apb1_data __initconst = { + .mux = 24, + .muxmask = BIT(1) | BIT(0), .table = &sun4i_apb1_config, .getter = sun4i_get_apb1_factors, }; @@ -545,10 +547,6 @@ static const struct mux_data sun6i_a31_ahb1_mux_data __initconst = { .shift = 12, }; -static const struct mux_data sun4i_apb1_mux_data __initconst = { - .shift = 24, -}; - static void __init sunxi_mux_clk_setup(struct device_node *node, struct mux_data *data) { @@ -1109,7 +1107,6 @@ static const struct of_device_id clk_divs_match[] __initconst = { /* Matches for mux clocks */ static const struct of_device_id clk_mux_match[] __initconst = { {.compatible = "allwinner,sun4i-a10-cpu-clk", .data = &sun4i_cpu_mux_data,}, - {.compatible = "allwinner,sun4i-a10-apb1-mux-clk", .data = &sun4i_apb1_mux_data,}, {.compatible = "allwinner,sun6i-a31-ahb1-mux-clk", .data = &sun6i_a31_ahb1_mux_data,}, {} }; -- cgit v1.2.2 From c6d67fb037f4eaafeec495611dd909c51d33f6a2 Mon Sep 17 00:00:00 2001 From: Ulrich Hecht Date: Fri, 7 Nov 2014 16:51:07 +0100 Subject: clk: shmobile: div6: support selectable-input clocks Support for setting the parent at initialization time based on the current hardware configuration in DIV6 clocks with selectable parents as found in the r8a73a4, r8a7740, sh73a0, and other SoCs. Signed-off-by: Ulrich Hecht Signed-off-by: Geert Uytterhoeven --- drivers/clk/shmobile/clk-div6.c | 113 +++++++++++++++++++++++++++++++++++----- 1 file changed, 101 insertions(+), 12 deletions(-) diff --git a/drivers/clk/shmobile/clk-div6.c b/drivers/clk/shmobile/clk-div6.c index f065f694cb65..639241e31e03 100644 --- a/drivers/clk/shmobile/clk-div6.c +++ b/drivers/clk/shmobile/clk-div6.c @@ -32,6 +32,9 @@ struct div6_clock { struct clk_hw hw; void __iomem *reg; unsigned int div; + u32 src_shift; + u32 src_width; + u8 *parents; }; #define to_div6_clock(_hw) container_of(_hw, struct div6_clock, hw) @@ -39,8 +42,11 @@ struct div6_clock { static int cpg_div6_clock_enable(struct clk_hw *hw) { struct div6_clock *clock = to_div6_clock(hw); + u32 val; - clk_writel(CPG_DIV6_DIV(clock->div - 1), clock->reg); + val = (clk_readl(clock->reg) & ~(CPG_DIV6_DIV_MASK | CPG_DIV6_CKSTP)) + | CPG_DIV6_DIV(clock->div - 1); + clk_writel(val, clock->reg); return 0; } @@ -52,7 +58,7 @@ static void cpg_div6_clock_disable(struct clk_hw *hw) /* DIV6 clocks require the divisor field to be non-zero when stopping * the clock. */ - clk_writel(CPG_DIV6_CKSTP | CPG_DIV6_DIV(CPG_DIV6_DIV_MASK), + clk_writel(clk_readl(clock->reg) | CPG_DIV6_CKSTP | CPG_DIV6_DIV_MASK, clock->reg); } @@ -94,12 +100,53 @@ static int cpg_div6_clock_set_rate(struct clk_hw *hw, unsigned long rate, { struct div6_clock *clock = to_div6_clock(hw); unsigned int div = cpg_div6_clock_calc_div(rate, parent_rate); + u32 val; clock->div = div; + val = clk_readl(clock->reg) & ~CPG_DIV6_DIV_MASK; /* Only program the new divisor if the clock isn't stopped. */ - if (!(clk_readl(clock->reg) & CPG_DIV6_CKSTP)) - clk_writel(CPG_DIV6_DIV(clock->div - 1), clock->reg); + if (!(val & CPG_DIV6_CKSTP)) + clk_writel(val | CPG_DIV6_DIV(clock->div - 1), clock->reg); + + return 0; +} + +static u8 cpg_div6_clock_get_parent(struct clk_hw *hw) +{ + struct div6_clock *clock = to_div6_clock(hw); + unsigned int i; + u8 hw_index; + + if (clock->src_width == 0) + return 0; + + hw_index = (clk_readl(clock->reg) >> clock->src_shift) & + (BIT(clock->src_width) - 1); + for (i = 0; i < __clk_get_num_parents(hw->clk); i++) { + if (clock->parents[i] == hw_index) + return i; + } + + pr_err("%s: %s DIV6 clock set to invalid parent %u\n", + __func__, __clk_get_name(hw->clk), hw_index); + return 0; +} + +static int cpg_div6_clock_set_parent(struct clk_hw *hw, u8 index) +{ + struct div6_clock *clock = to_div6_clock(hw); + u8 hw_index; + u32 mask; + + if (index >= __clk_get_num_parents(hw->clk)) + return -EINVAL; + + mask = ~((BIT(clock->src_width) - 1) << clock->src_shift); + hw_index = clock->parents[index]; + + clk_writel((clk_readl(clock->reg) & mask) | + (hw_index << clock->src_shift), clock->reg); return 0; } @@ -108,6 +155,8 @@ static const struct clk_ops cpg_div6_clock_ops = { .enable = cpg_div6_clock_enable, .disable = cpg_div6_clock_disable, .is_enabled = cpg_div6_clock_is_enabled, + .get_parent = cpg_div6_clock_get_parent, + .set_parent = cpg_div6_clock_set_parent, .recalc_rate = cpg_div6_clock_recalc_rate, .round_rate = cpg_div6_clock_round_rate, .set_rate = cpg_div6_clock_set_rate, @@ -115,20 +164,33 @@ static const struct clk_ops cpg_div6_clock_ops = { static void __init cpg_div6_clock_init(struct device_node *np) { + unsigned int num_parents, valid_parents; + const char **parent_names; struct clk_init_data init; struct div6_clock *clock; - const char *parent_name; const char *name; struct clk *clk; + unsigned int i; int ret; clock = kzalloc(sizeof(*clock), GFP_KERNEL); - if (!clock) { - pr_err("%s: failed to allocate %s DIV6 clock\n", + if (!clock) + return; + + num_parents = of_clk_get_parent_count(np); + if (num_parents < 1) { + pr_err("%s: no parent found for %s DIV6 clock\n", __func__, np->name); return; } + clock->parents = kmalloc_array(num_parents, sizeof(*clock->parents), + GFP_KERNEL); + parent_names = kmalloc_array(num_parents, sizeof(*parent_names), + GFP_KERNEL); + if (!parent_names) + return; + /* Remap the clock register and read the divisor. Disabling the * clock overwrites the divisor, so we need to cache its value for the * enable operation. @@ -150,9 +212,34 @@ static void __init cpg_div6_clock_init(struct device_node *np) goto error; } - parent_name = of_clk_get_parent_name(np, 0); - if (parent_name == NULL) { - pr_err("%s: failed to get %s DIV6 clock parent name\n", + + for (i = 0, valid_parents = 0; i < num_parents; i++) { + const char *name = of_clk_get_parent_name(np, i); + + if (name) { + parent_names[valid_parents] = name; + clock->parents[valid_parents] = i; + valid_parents++; + } + } + + switch (num_parents) { + case 1: + /* fixed parent clock */ + clock->src_shift = clock->src_width = 0; + break; + case 4: + /* clock with EXSRC bits 6-7 */ + clock->src_shift = 6; + clock->src_width = 2; + break; + case 8: + /* VCLK with EXSRC bits 12-14 */ + clock->src_shift = 12; + clock->src_width = 3; + break; + default: + pr_err("%s: invalid number of parents for DIV6 clock %s\n", __func__, np->name); goto error; } @@ -161,8 +248,8 @@ static void __init cpg_div6_clock_init(struct device_node *np) init.name = name; init.ops = &cpg_div6_clock_ops; init.flags = CLK_IS_BASIC; - init.parent_names = &parent_name; - init.num_parents = 1; + init.parent_names = parent_names; + init.num_parents = valid_parents; clock->hw.init = &init; @@ -175,11 +262,13 @@ static void __init cpg_div6_clock_init(struct device_node *np) of_clk_add_provider(np, of_clk_src_simple_get, clk); + kfree(parent_names); return; error: if (clock->reg) iounmap(clock->reg); + kfree(parent_names); kfree(clock); } CLK_OF_DECLARE(cpg_div6_clk, "renesas,cpg-div6-clock", cpg_div6_clock_init); -- cgit v1.2.2 From bfadcadf03a63bc841f69ed1c47e930b2ba2273d Mon Sep 17 00:00:00 2001 From: Ulrich Hecht Date: Fri, 7 Nov 2014 16:51:08 +0100 Subject: clk: shmobile: document DIV6 clock parent bindings Describes how to specify the parents for clocks with EXSRC bits. Signed-off-by: Ulrich Hecht Signed-off-by: Geert Uytterhoeven --- .../bindings/clock/renesas,cpg-div6-clocks.txt | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clocks.txt index 952e373178d2..054f65f9319c 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clocks.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-div6-clocks.txt @@ -7,11 +7,16 @@ to 64. Required Properties: - compatible: Must be one of the following + - "renesas,r8a73a4-div6-clock" for R8A73A4 (R-Mobile APE6) DIV6 clocks + - "renesas,r8a7740-div6-clock" for R8A7740 (R-Mobile A1) DIV6 clocks - "renesas,r8a7790-div6-clock" for R8A7790 (R-Car H2) DIV6 clocks - "renesas,r8a7791-div6-clock" for R8A7791 (R-Car M2) DIV6 clocks + - "renesas,sh73a0-div6-clock" for SH73A0 (SH-Mobile AG5) DIV6 clocks - "renesas,cpg-div6-clock" for generic DIV6 clocks - reg: Base address and length of the memory resource used by the DIV6 clock - - clocks: Reference to the parent clock + - clocks: Reference to the parent clock(s); either one, four, or eight + clocks must be specified. For clocks with multiple parents, invalid + settings must be specified as "<0>". - #clock-cells: Must be 0 - clock-output-names: The name of the clock as a free-form string @@ -19,10 +24,11 @@ Required Properties: Example ------- - sd2_clk: sd2_clk@e6150078 { - compatible = "renesas,r8a7790-div6-clock", "renesas,cpg-div6-clock"; - reg = <0 0xe6150078 0 4>; - clocks = <&pll1_div2_clk>; + sdhi2_clk: sdhi2_clk@e615007c { + compatible = "renesas,r8a73a4-div6-clock", "renesas,cpg-div6-clock"; + reg = <0 0xe615007c 0 4>; + clocks = <&pll1_div2_clk>, <&cpg_clocks R8A73A4_CLK_PLL2S>, + <0>, <&extal2_clk>; #clock-cells = <0>; - clock-output-names = "sd2"; + clock-output-names = "sdhi2ck"; }; -- cgit v1.2.2 From 2bd1e256e45052f2244403f822fd85aa64a6aa00 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:41 +0800 Subject: clk: mmp: add prefix "mmp" for structures defined for clk-frac The structures defined for clk-frac will be used out side of clk-frac.c. To avoid conflicts, add prefix "mmp" for these structures' name. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/clk-frac.c | 23 ++++++++++++----------- drivers/clk/mmp/clk-mmp2.c | 4 ++-- drivers/clk/mmp/clk-pxa168.c | 4 ++-- drivers/clk/mmp/clk-pxa910.c | 4 ++-- drivers/clk/mmp/clk.h | 8 ++++---- 5 files changed, 22 insertions(+), 21 deletions(-) diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index 23a56f561812..3fbc9cab53a6 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -22,19 +22,19 @@ * numerator/denominator = Fin / (Fout * factor) */ -#define to_clk_factor(hw) container_of(hw, struct clk_factor, hw) -struct clk_factor { +#define to_clk_factor(hw) container_of(hw, struct mmp_clk_factor, hw) +struct mmp_clk_factor { struct clk_hw hw; void __iomem *base; - struct clk_factor_masks *masks; - struct clk_factor_tbl *ftbl; + struct mmp_clk_factor_masks *masks; + struct mmp_clk_factor_tbl *ftbl; unsigned int ftbl_cnt; }; static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate, unsigned long *prate) { - struct clk_factor *factor = to_clk_factor(hw); + struct mmp_clk_factor *factor = to_clk_factor(hw); unsigned long rate = 0, prev_rate; int i; @@ -58,8 +58,8 @@ static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate, static unsigned long clk_factor_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { - struct clk_factor *factor = to_clk_factor(hw); - struct clk_factor_masks *masks = factor->masks; + struct mmp_clk_factor *factor = to_clk_factor(hw); + struct mmp_clk_factor_masks *masks = factor->masks; unsigned int val, num, den; val = readl_relaxed(factor->base); @@ -81,8 +81,8 @@ static unsigned long clk_factor_recalc_rate(struct clk_hw *hw, static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, unsigned long prate) { - struct clk_factor *factor = to_clk_factor(hw); - struct clk_factor_masks *masks = factor->masks; + struct mmp_clk_factor *factor = to_clk_factor(hw); + struct mmp_clk_factor_masks *masks = factor->masks; int i; unsigned long val; unsigned long prev_rate, rate = 0; @@ -118,10 +118,11 @@ static struct clk_ops clk_factor_ops = { struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, unsigned long flags, void __iomem *base, - struct clk_factor_masks *masks, struct clk_factor_tbl *ftbl, + struct mmp_clk_factor_masks *masks, + struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt) { - struct clk_factor *factor; + struct mmp_clk_factor *factor; struct clk_init_data init; struct clk *clk; diff --git a/drivers/clk/mmp/clk-mmp2.c b/drivers/clk/mmp/clk-mmp2.c index b2721cae257a..7083f12ef422 100644 --- a/drivers/clk/mmp/clk-mmp2.c +++ b/drivers/clk/mmp/clk-mmp2.c @@ -54,7 +54,7 @@ static DEFINE_SPINLOCK(clk_lock); -static struct clk_factor_masks uart_factor_masks = { +static struct mmp_clk_factor_masks uart_factor_masks = { .factor = 2, .num_mask = 0x1fff, .den_mask = 0x1fff, @@ -62,7 +62,7 @@ static struct clk_factor_masks uart_factor_masks = { .den_shift = 0, }; -static struct clk_factor_tbl uart_factor_tbl[] = { +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { {.num = 14634, .den = 2165}, /*14.745MHZ */ {.num = 3521, .den = 689}, /*19.23MHZ */ {.num = 9679, .den = 5728}, /*58.9824MHZ */ diff --git a/drivers/clk/mmp/clk-pxa168.c b/drivers/clk/mmp/clk-pxa168.c index 014396b028a2..75266ac80829 100644 --- a/drivers/clk/mmp/clk-pxa168.c +++ b/drivers/clk/mmp/clk-pxa168.c @@ -47,7 +47,7 @@ static DEFINE_SPINLOCK(clk_lock); -static struct clk_factor_masks uart_factor_masks = { +static struct mmp_clk_factor_masks uart_factor_masks = { .factor = 2, .num_mask = 0x1fff, .den_mask = 0x1fff, @@ -55,7 +55,7 @@ static struct clk_factor_masks uart_factor_masks = { .den_shift = 0, }; -static struct clk_factor_tbl uart_factor_tbl[] = { +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { {.num = 8125, .den = 1536}, /*14.745MHZ */ }; diff --git a/drivers/clk/mmp/clk-pxa910.c b/drivers/clk/mmp/clk-pxa910.c index 9efc6a47535d..f81799987451 100644 --- a/drivers/clk/mmp/clk-pxa910.c +++ b/drivers/clk/mmp/clk-pxa910.c @@ -45,7 +45,7 @@ static DEFINE_SPINLOCK(clk_lock); -static struct clk_factor_masks uart_factor_masks = { +static struct mmp_clk_factor_masks uart_factor_masks = { .factor = 2, .num_mask = 0x1fff, .den_mask = 0x1fff, @@ -53,7 +53,7 @@ static struct clk_factor_masks uart_factor_masks = { .den_shift = 0, }; -static struct clk_factor_tbl uart_factor_tbl[] = { +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { {.num = 8125, .den = 1536}, /*14.745MHZ */ }; diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index ab86dd4a416a..3fe92be9e054 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -7,7 +7,7 @@ #define APBC_NO_BUS_CTRL BIT(0) #define APBC_POWER_CTRL BIT(1) -struct clk_factor_masks { +struct mmp_clk_factor_masks { unsigned int factor; unsigned int num_mask; unsigned int den_mask; @@ -15,7 +15,7 @@ struct clk_factor_masks { unsigned int den_shift; }; -struct clk_factor_tbl { +struct mmp_clk_factor_tbl { unsigned int num; unsigned int den; }; @@ -30,6 +30,6 @@ extern struct clk *mmp_clk_register_apmu(const char *name, spinlock_t *lock); extern struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, unsigned long flags, - void __iomem *base, struct clk_factor_masks *masks, - struct clk_factor_tbl *ftbl, unsigned int ftbl_cnt); + void __iomem *base, struct mmp_clk_factor_masks *masks, + struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt); #endif -- cgit v1.2.2 From 61256133919e76ea51e458c9713a9ee9d9ec4a67 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:42 +0800 Subject: clk: mmp: add spin lock for clk-frac The register used by clk-frac may be shared with other clocks. So it needs to use spin lock to protect the register access. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/clk-frac.c | 11 ++++++++++- drivers/clk/mmp/clk-mmp2.c | 2 +- drivers/clk/mmp/clk-pxa168.c | 2 +- drivers/clk/mmp/clk-pxa910.c | 2 +- drivers/clk/mmp/clk.h | 3 ++- 5 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index 3fbc9cab53a6..e29d006ab85e 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -29,6 +29,7 @@ struct mmp_clk_factor { struct mmp_clk_factor_masks *masks; struct mmp_clk_factor_tbl *ftbl; unsigned int ftbl_cnt; + spinlock_t *lock; }; static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate, @@ -86,6 +87,7 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, int i; unsigned long val; unsigned long prev_rate, rate = 0; + unsigned long flags = 0; for (i = 0; i < factor->ftbl_cnt; i++) { prev_rate = rate; @@ -97,6 +99,9 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, if (i > 0) i--; + if (factor->lock) + spin_lock_irqsave(factor->lock, flags); + val = readl_relaxed(factor->base); val &= ~(masks->num_mask << masks->num_shift); @@ -107,6 +112,9 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, writel_relaxed(val, factor->base); + if (factor->lock) + spin_unlock_irqrestore(factor->lock, flags); + return 0; } @@ -120,7 +128,7 @@ struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, unsigned long flags, void __iomem *base, struct mmp_clk_factor_masks *masks, struct mmp_clk_factor_tbl *ftbl, - unsigned int ftbl_cnt) + unsigned int ftbl_cnt, spinlock_t *lock) { struct mmp_clk_factor *factor; struct clk_init_data init; @@ -143,6 +151,7 @@ struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, factor->ftbl = ftbl; factor->ftbl_cnt = ftbl_cnt; factor->hw.init = &init; + factor->lock = lock; init.name = name; init.ops = &clk_factor_ops; diff --git a/drivers/clk/mmp/clk-mmp2.c b/drivers/clk/mmp/clk-mmp2.c index 7083f12ef422..5c90a4230fa3 100644 --- a/drivers/clk/mmp/clk-mmp2.c +++ b/drivers/clk/mmp/clk-mmp2.c @@ -191,7 +191,7 @@ void __init mmp2_clk_init(void) clk = mmp_clk_register_factor("uart_pll", "pll1_4", 0, mpmu_base + MPMU_UART_PLL, &uart_factor_masks, uart_factor_tbl, - ARRAY_SIZE(uart_factor_tbl)); + ARRAY_SIZE(uart_factor_tbl), &clk_lock); clk_set_rate(clk, 14745600); clk_register_clkdev(clk, "uart_pll", NULL); diff --git a/drivers/clk/mmp/clk-pxa168.c b/drivers/clk/mmp/clk-pxa168.c index 75266ac80829..93e967c0f972 100644 --- a/drivers/clk/mmp/clk-pxa168.c +++ b/drivers/clk/mmp/clk-pxa168.c @@ -158,7 +158,7 @@ void __init pxa168_clk_init(void) uart_pll = mmp_clk_register_factor("uart_pll", "pll1_4", 0, mpmu_base + MPMU_UART_PLL, &uart_factor_masks, uart_factor_tbl, - ARRAY_SIZE(uart_factor_tbl)); + ARRAY_SIZE(uart_factor_tbl), &clk_lock); clk_set_rate(uart_pll, 14745600); clk_register_clkdev(uart_pll, "uart_pll", NULL); diff --git a/drivers/clk/mmp/clk-pxa910.c b/drivers/clk/mmp/clk-pxa910.c index f81799987451..993abcdb32cc 100644 --- a/drivers/clk/mmp/clk-pxa910.c +++ b/drivers/clk/mmp/clk-pxa910.c @@ -163,7 +163,7 @@ void __init pxa910_clk_init(void) uart_pll = mmp_clk_register_factor("uart_pll", "pll1_4", 0, mpmu_base + MPMU_UART_PLL, &uart_factor_masks, uart_factor_tbl, - ARRAY_SIZE(uart_factor_tbl)); + ARRAY_SIZE(uart_factor_tbl), &clk_lock); clk_set_rate(uart_pll, 14745600); clk_register_clkdev(uart_pll, "uart_pll", NULL); diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index 3fe92be9e054..b71b717cdb24 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -31,5 +31,6 @@ extern struct clk *mmp_clk_register_apmu(const char *name, extern struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, unsigned long flags, void __iomem *base, struct mmp_clk_factor_masks *masks, - struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt); + struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt, + spinlock_t *lock); #endif -- cgit v1.2.2 From 0c4c11f3556b244469af32a7bc13485ecbbc77f9 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:43 +0800 Subject: clk: mmp: add init callback for clk-frac For the clk-frac, we need to make sure that the initial clock rate is one item of the table. If it is not, we use the first item in the table by default. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/clk-frac.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index e29d006ab85e..1876d2c94bd3 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -118,10 +118,50 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, return 0; } +void clk_factor_init(struct clk_hw *hw) +{ + struct mmp_clk_factor *factor = to_clk_factor(hw); + struct mmp_clk_factor_masks *masks = factor->masks; + u32 val, num, den; + int i; + unsigned long flags = 0; + + if (factor->lock) + spin_lock_irqsave(factor->lock, flags); + + val = readl(factor->base); + + /* calculate numerator */ + num = (val >> masks->num_shift) & masks->num_mask; + + /* calculate denominator */ + den = (val >> masks->den_shift) & masks->den_mask; + + for (i = 0; i < factor->ftbl_cnt; i++) + if (den == factor->ftbl[i].den && num == factor->ftbl[i].num) + break; + + if (i >= factor->ftbl_cnt) { + val &= ~(masks->num_mask << masks->num_shift); + val |= (factor->ftbl[0].num & masks->num_mask) << + masks->num_shift; + + val &= ~(masks->den_mask << masks->den_shift); + val |= (factor->ftbl[0].den & masks->den_mask) << + masks->den_shift; + + writel(val, factor->base); + } + + if (factor->lock) + spin_unlock_irqrestore(factor->lock, flags); +} + static struct clk_ops clk_factor_ops = { .recalc_rate = clk_factor_recalc_rate, .round_rate = clk_factor_round_rate, .set_rate = clk_factor_set_rate, + .init = clk_factor_init, }; struct clk *mmp_clk_register_factor(const char *name, const char *parent_name, -- cgit v1.2.2 From 3a2b2f84957d3c1e380640e23e438c40c730cfd1 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:44 +0800 Subject: clk: mmp: move definiton of mmp_clk_frac to clk.h Move the definition of structure of mmp_clk_frac to clk.h. So device tree support can use this structure. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/clk-frac.c | 8 -------- drivers/clk/mmp/clk.h | 32 ++++++++++++++++++++++---------- 2 files changed, 22 insertions(+), 18 deletions(-) diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index 1876d2c94bd3..eeba52c2def6 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -23,14 +23,6 @@ */ #define to_clk_factor(hw) container_of(hw, struct mmp_clk_factor, hw) -struct mmp_clk_factor { - struct clk_hw hw; - void __iomem *base; - struct mmp_clk_factor_masks *masks; - struct mmp_clk_factor_tbl *ftbl; - unsigned int ftbl_cnt; - spinlock_t *lock; -}; static long clk_factor_round_rate(struct clk_hw *hw, unsigned long drate, unsigned long *prate) diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index b71b717cdb24..d267639ece2b 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -7,12 +7,14 @@ #define APBC_NO_BUS_CTRL BIT(0) #define APBC_POWER_CTRL BIT(1) + +/* Clock type "factor" */ struct mmp_clk_factor_masks { - unsigned int factor; - unsigned int num_mask; - unsigned int den_mask; - unsigned int num_shift; - unsigned int den_shift; + unsigned int factor; + unsigned int num_mask; + unsigned int den_mask; + unsigned int num_shift; + unsigned int den_shift; }; struct mmp_clk_factor_tbl { @@ -20,6 +22,21 @@ struct mmp_clk_factor_tbl { unsigned int den; }; +struct mmp_clk_factor { + struct clk_hw hw; + void __iomem *base; + struct mmp_clk_factor_masks *masks; + struct mmp_clk_factor_tbl *ftbl; + unsigned int ftbl_cnt; + spinlock_t *lock; +}; + +extern struct clk *mmp_clk_register_factor(const char *name, + const char *parent_name, unsigned long flags, + void __iomem *base, struct mmp_clk_factor_masks *masks, + struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt, + spinlock_t *lock); + extern struct clk *mmp_clk_register_pll2(const char *name, const char *parent_name, unsigned long flags); extern struct clk *mmp_clk_register_apbc(const char *name, @@ -28,9 +45,4 @@ extern struct clk *mmp_clk_register_apbc(const char *name, extern struct clk *mmp_clk_register_apmu(const char *name, const char *parent_name, void __iomem *base, u32 enable_mask, spinlock_t *lock); -extern struct clk *mmp_clk_register_factor(const char *name, - const char *parent_name, unsigned long flags, - void __iomem *base, struct mmp_clk_factor_masks *masks, - struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt, - spinlock_t *lock); #endif -- cgit v1.2.2 From ee81f4ee2a3632a2d7928f680c4af8243a18762f Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:45 +0800 Subject: clk: mmp: add clock type mix The clock type mix is a kind of clock combines "div" and "mux". This kind of clock can not allow to change div first then mux or change mux first or div. The reason is 1. Some clock has frequency change bit. Each time want to change the frequency, there are some operations based on this bit, and these operations are time-cost. Seperating div and mux change will make the process longer, and waste more time. 2. Seperting the div and mux may generate middle clock that the peripharals do not support. It may make the peripharals hang. There are three kinds of this type of clock in all SOCes. 1. The clock has bit to trigger the frequency change. 2. Same as #1, but the operations for the bit is different 3. Do not have frequency change bit. So this type of clock has implemented the callbacks ->determine_rate ->set_rate_and_parent These callbacks can help to change the div and mux together. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-mix.c | 513 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/mmp/clk.h | 66 ++++++ 3 files changed, 580 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/mmp/clk-mix.c diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 392d78044ce3..8bfee8605949 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -2,7 +2,7 @@ # Makefile for mmp specific clk # -obj-y += clk-apbc.o clk-apmu.o clk-frac.o +obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c new file mode 100644 index 000000000000..b79742c47d53 --- /dev/null +++ b/drivers/clk/mmp/clk-mix.c @@ -0,0 +1,513 @@ +/* + * mmp mix(div and mux) clock operation source file + * + * Copyright (C) 2014 Marvell + * Chao Xie + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include + +#include "clk.h" + +/* + * The mix clock is a clock combined mux and div type clock. + * Because the div field and mux field need to be set at same + * time, we can not divide it into 2 types of clock + */ + +#define to_clk_mix(hw) container_of(hw, struct mmp_clk_mix, hw) + +static unsigned int _get_maxdiv(struct mmp_clk_mix *mix) +{ + unsigned int div_mask = (1 << mix->reg_info.width_div) - 1; + unsigned int maxdiv = 0; + struct clk_div_table *clkt; + + if (mix->div_flags & CLK_DIVIDER_ONE_BASED) + return div_mask; + if (mix->div_flags & CLK_DIVIDER_POWER_OF_TWO) + return 1 << div_mask; + if (mix->div_table) { + for (clkt = mix->div_table; clkt->div; clkt++) + if (clkt->div > maxdiv) + maxdiv = clkt->div; + return maxdiv; + } + return div_mask + 1; +} + +static unsigned int _get_div(struct mmp_clk_mix *mix, unsigned int val) +{ + struct clk_div_table *clkt; + + if (mix->div_flags & CLK_DIVIDER_ONE_BASED) + return val; + if (mix->div_flags & CLK_DIVIDER_POWER_OF_TWO) + return 1 << val; + if (mix->div_table) { + for (clkt = mix->div_table; clkt->div; clkt++) + if (clkt->val == val) + return clkt->div; + if (clkt->div == 0) + return 0; + } + return val + 1; +} + +static unsigned int _get_mux(struct mmp_clk_mix *mix, unsigned int val) +{ + int num_parents = __clk_get_num_parents(mix->hw.clk); + int i; + + if (mix->mux_flags & CLK_MUX_INDEX_BIT) + return ffs(val) - 1; + if (mix->mux_flags & CLK_MUX_INDEX_ONE) + return val - 1; + if (mix->mux_table) { + for (i = 0; i < num_parents; i++) + if (mix->mux_table[i] == val) + return i; + if (i == num_parents) + return 0; + } + + return val; +} +static unsigned int _get_div_val(struct mmp_clk_mix *mix, unsigned int div) +{ + struct clk_div_table *clkt; + + if (mix->div_flags & CLK_DIVIDER_ONE_BASED) + return div; + if (mix->div_flags & CLK_DIVIDER_POWER_OF_TWO) + return __ffs(div); + if (mix->div_table) { + for (clkt = mix->div_table; clkt->div; clkt++) + if (clkt->div == div) + return clkt->val; + if (clkt->div == 0) + return 0; + } + + return div - 1; +} + +static unsigned int _get_mux_val(struct mmp_clk_mix *mix, unsigned int mux) +{ + if (mix->mux_table) + return mix->mux_table[mux]; + + return mux; +} + +static void _filter_clk_table(struct mmp_clk_mix *mix, + struct mmp_clk_mix_clk_table *table, + unsigned int table_size) +{ + int i; + struct mmp_clk_mix_clk_table *item; + struct clk *parent, *clk; + unsigned long parent_rate; + + clk = mix->hw.clk; + + for (i = 0; i < table_size; i++) { + item = &table[i]; + parent = clk_get_parent_by_index(clk, item->parent_index); + parent_rate = __clk_get_rate(parent); + if (parent_rate % item->rate) { + item->valid = 0; + } else { + item->divisor = parent_rate / item->rate; + item->valid = 1; + } + } +} + +static int _set_rate(struct mmp_clk_mix *mix, u32 mux_val, u32 div_val, + unsigned int change_mux, unsigned int change_div) +{ + struct mmp_clk_mix_reg_info *ri = &mix->reg_info; + u8 width, shift; + u32 mux_div, fc_req; + int ret, timeout = 50; + unsigned long flags = 0; + + if (!change_mux && !change_div) + return -EINVAL; + + if (mix->lock) + spin_lock_irqsave(mix->lock, flags); + + if (mix->type == MMP_CLK_MIX_TYPE_V1 + || mix->type == MMP_CLK_MIX_TYPE_V2) + mux_div = readl(ri->reg_clk_ctrl); + else + mux_div = readl(ri->reg_clk_sel); + + if (change_div) { + width = ri->width_div; + shift = ri->shift_div; + mux_div &= ~MMP_CLK_BITS_MASK(width, shift); + mux_div |= MMP_CLK_BITS_SET_VAL(div_val, width, shift); + } + + if (change_mux) { + width = ri->width_mux; + shift = ri->shift_mux; + mux_div &= ~MMP_CLK_BITS_MASK(width, shift); + mux_div |= MMP_CLK_BITS_SET_VAL(mux_val, width, shift); + } + + if (mix->type == MMP_CLK_MIX_TYPE_V1) { + writel(mux_div, ri->reg_clk_ctrl); + } else if (mix->type == MMP_CLK_MIX_TYPE_V2) { + mux_div |= (1 << ri->bit_fc); + writel(mux_div, ri->reg_clk_ctrl); + + do { + fc_req = readl(ri->reg_clk_ctrl); + timeout--; + if (!(fc_req & (1 << ri->bit_fc))) + break; + } while (timeout); + + if (timeout == 0) { + pr_err("%s:%s cannot do frequency change\n", + __func__, __clk_get_name(mix->hw.clk)); + ret = -EBUSY; + goto error; + } + } else { + fc_req = readl(ri->reg_clk_ctrl); + fc_req |= 1 << ri->bit_fc; + writel(fc_req, ri->reg_clk_ctrl); + writel(mux_div, ri->reg_clk_sel); + fc_req &= ~(1 << ri->bit_fc); + } + + ret = 0; +error: + if (mix->lock) + spin_unlock_irqrestore(mix->lock, flags); + + return ret; +} + +static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *best_parent_rate, + struct clk **best_parent_clk) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + struct mmp_clk_mix_clk_table *item; + struct clk *parent, *parent_best, *mix_clk; + unsigned long parent_rate, mix_rate, mix_rate_best, parent_rate_best; + unsigned long gap, gap_best; + u32 div_val_max; + unsigned int div; + int i, j; + + mix_clk = hw->clk; + + parent = NULL; + mix_rate_best = 0; + parent_rate_best = 0; + gap_best = rate; + parent_best = NULL; + + if (mix->table) { + for (i = 0; i < mix->table_size; i++) { + item = &mix->table[i]; + if (item->valid == 0) + continue; + parent = clk_get_parent_by_index(mix_clk, + item->parent_index); + parent_rate = __clk_get_rate(parent); + mix_rate = parent_rate / item->divisor; + gap = abs(mix_rate - rate); + if (parent_best == NULL || gap < gap_best) { + parent_best = parent; + parent_rate_best = parent_rate; + mix_rate_best = mix_rate; + gap_best = gap; + if (gap_best == 0) + goto found; + } + } + } else { + for (i = 0; i < __clk_get_num_parents(mix_clk); i++) { + parent = clk_get_parent_by_index(mix_clk, i); + parent_rate = __clk_get_rate(parent); + div_val_max = _get_maxdiv(mix); + for (j = 0; j < div_val_max; j++) { + div = _get_div(mix, j); + mix_rate = parent_rate / div; + gap = abs(mix_rate - rate); + if (parent_best == NULL || gap < gap_best) { + parent_best = parent; + parent_rate_best = parent_rate; + mix_rate_best = mix_rate; + gap_best = gap; + if (gap_best == 0) + goto found; + } + } + } + } + +found: + *best_parent_rate = parent_rate_best; + *best_parent_clk = parent_best; + + return mix_rate_best; +} + +static int mmp_clk_mix_set_rate_and_parent(struct clk_hw *hw, + unsigned long rate, + unsigned long parent_rate, + u8 index) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + unsigned int div; + u32 div_val, mux_val; + + div = parent_rate / rate; + div_val = _get_div_val(mix, div); + mux_val = _get_mux_val(mix, index); + + return _set_rate(mix, mux_val, div_val, 1, 1); +} + +static u8 mmp_clk_mix_get_parent(struct clk_hw *hw) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + struct mmp_clk_mix_reg_info *ri = &mix->reg_info; + unsigned long flags = 0; + u32 mux_div = 0; + u8 width, shift; + u32 mux_val; + + if (mix->lock) + spin_lock_irqsave(mix->lock, flags); + + if (mix->type == MMP_CLK_MIX_TYPE_V1 + || mix->type == MMP_CLK_MIX_TYPE_V2) + mux_div = readl(ri->reg_clk_ctrl); + else + mux_div = readl(ri->reg_clk_sel); + + if (mix->lock) + spin_unlock_irqrestore(mix->lock, flags); + + width = mix->reg_info.width_mux; + shift = mix->reg_info.shift_mux; + + mux_val = MMP_CLK_BITS_GET_VAL(mux_div, width, shift); + + return _get_mux(mix, mux_val); +} + +static unsigned long mmp_clk_mix_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + struct mmp_clk_mix_reg_info *ri = &mix->reg_info; + unsigned long flags = 0; + u32 mux_div = 0; + u8 width, shift; + unsigned int div; + + if (mix->lock) + spin_lock_irqsave(mix->lock, flags); + + if (mix->type == MMP_CLK_MIX_TYPE_V1 + || mix->type == MMP_CLK_MIX_TYPE_V2) + mux_div = readl(ri->reg_clk_ctrl); + else + mux_div = readl(ri->reg_clk_sel); + + if (mix->lock) + spin_unlock_irqrestore(mix->lock, flags); + + width = mix->reg_info.width_div; + shift = mix->reg_info.shift_div; + + div = _get_div(mix, MMP_CLK_BITS_GET_VAL(mux_div, width, shift)); + + return parent_rate / div; +} + +static int mmp_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + struct mmp_clk_mix_clk_table *item; + int i; + u32 div_val, mux_val; + + if (mix->table) { + for (i = 0; i < mix->table_size; i++) { + item = &mix->table[i]; + if (item->valid == 0) + continue; + if (item->parent_index == index) + break; + } + if (i < mix->table_size) { + div_val = _get_div_val(mix, item->divisor); + mux_val = _get_mux_val(mix, item->parent_index); + } else + return -EINVAL; + } else { + mux_val = _get_mux_val(mix, index); + div_val = 0; + } + + return _set_rate(mix, mux_val, div_val, 1, div_val ? 1 : 0); +} + +static int mmp_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long best_parent_rate) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + struct mmp_clk_mix_clk_table *item; + unsigned long parent_rate; + unsigned int best_divisor; + struct clk *mix_clk, *parent; + int i; + + best_divisor = best_parent_rate / rate; + + mix_clk = hw->clk; + if (mix->table) { + for (i = 0; i < mix->table_size; i++) { + item = &mix->table[i]; + if (item->valid == 0) + continue; + parent = clk_get_parent_by_index(mix_clk, + item->parent_index); + parent_rate = __clk_get_rate(parent); + if (parent_rate == best_parent_rate + && item->divisor == best_divisor) + break; + } + if (i < mix->table_size) + return _set_rate(mix, + _get_mux_val(mix, item->parent_index), + _get_div_val(mix, item->divisor), + 1, 1); + else + return -EINVAL; + } else { + for (i = 0; i < __clk_get_num_parents(mix_clk); i++) { + parent = clk_get_parent_by_index(mix_clk, i); + parent_rate = __clk_get_rate(parent); + if (parent_rate == best_parent_rate) + break; + } + if (i < __clk_get_num_parents(mix_clk)) + return _set_rate(mix, _get_mux_val(mix, i), + _get_div_val(mix, best_divisor), 1, 1); + else + return -EINVAL; + } +} + +static void mmp_clk_mix_init(struct clk_hw *hw) +{ + struct mmp_clk_mix *mix = to_clk_mix(hw); + + if (mix->table) + _filter_clk_table(mix, mix->table, mix->table_size); +} + +const struct clk_ops mmp_clk_mix_ops = { + .determine_rate = mmp_clk_mix_determine_rate, + .set_rate_and_parent = mmp_clk_mix_set_rate_and_parent, + .set_rate = mmp_clk_set_rate, + .set_parent = mmp_clk_set_parent, + .get_parent = mmp_clk_mix_get_parent, + .recalc_rate = mmp_clk_mix_recalc_rate, + .init = mmp_clk_mix_init, +}; + +struct clk *mmp_clk_register_mix(struct device *dev, + const char *name, + const char **parent_names, + u8 num_parents, + unsigned long flags, + struct mmp_clk_mix_config *config, + spinlock_t *lock) +{ + struct mmp_clk_mix *mix; + struct clk *clk; + struct clk_init_data init; + size_t table_bytes; + + mix = kzalloc(sizeof(*mix), GFP_KERNEL); + if (!mix) { + pr_err("%s:%s: could not allocate mmp mix clk\n", + __func__, name); + return ERR_PTR(-ENOMEM); + } + + init.name = name; + init.flags = flags | CLK_GET_RATE_NOCACHE; + init.parent_names = parent_names; + init.num_parents = num_parents; + init.ops = &mmp_clk_mix_ops; + + memcpy(&mix->reg_info, &config->reg_info, sizeof(config->reg_info)); + if (config->table) { + table_bytes = sizeof(*config->table) * config->table_size; + mix->table = kzalloc(table_bytes, GFP_KERNEL); + if (!mix->table) { + pr_err("%s:%s: could not allocate mmp mix table\n", + __func__, name); + kfree(mix); + return ERR_PTR(-ENOMEM); + } + memcpy(mix->table, config->table, table_bytes); + mix->table_size = config->table_size; + } + + if (config->mux_table) { + table_bytes = sizeof(u32) * num_parents; + mix->mux_table = kzalloc(table_bytes, GFP_KERNEL); + if (!mix->mux_table) { + pr_err("%s:%s: could not allocate mmp mix mux-table\n", + __func__, name); + kfree(mix->table); + kfree(mix); + return ERR_PTR(-ENOMEM); + } + memcpy(mix->mux_table, config->mux_table, table_bytes); + } + + mix->div_flags = config->div_flags; + mix->mux_flags = config->mux_flags; + mix->lock = lock; + mix->hw.init = &init; + + if (config->reg_info.bit_fc >= 32) + mix->type = MMP_CLK_MIX_TYPE_V1; + else if (config->reg_info.reg_clk_sel) + mix->type = MMP_CLK_MIX_TYPE_V3; + else + mix->type = MMP_CLK_MIX_TYPE_V2; + clk = clk_register(dev, &mix->hw); + + if (IS_ERR(clk)) { + kfree(mix->mux_table); + kfree(mix->table); + kfree(mix); + } + + return clk; +} diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index d267639ece2b..26b24699ccd7 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -37,6 +37,72 @@ extern struct clk *mmp_clk_register_factor(const char *name, struct mmp_clk_factor_tbl *ftbl, unsigned int ftbl_cnt, spinlock_t *lock); +/* Clock type "mix" */ +#define MMP_CLK_BITS_MASK(width, shift) \ + (((1 << (width)) - 1) << (shift)) +#define MMP_CLK_BITS_GET_VAL(data, width, shift) \ + ((data & MMP_CLK_BITS_MASK(width, shift)) >> (shift)) +#define MMP_CLK_BITS_SET_VAL(val, width, shift) \ + (((val) << (shift)) & MMP_CLK_BITS_MASK(width, shift)) + +enum { + MMP_CLK_MIX_TYPE_V1, + MMP_CLK_MIX_TYPE_V2, + MMP_CLK_MIX_TYPE_V3, +}; + +/* The register layout */ +struct mmp_clk_mix_reg_info { + void __iomem *reg_clk_ctrl; + void __iomem *reg_clk_sel; + u8 width_div; + u8 shift_div; + u8 width_mux; + u8 shift_mux; + u8 bit_fc; +}; + +/* The suggested clock table from user. */ +struct mmp_clk_mix_clk_table { + unsigned long rate; + u8 parent_index; + unsigned int divisor; + unsigned int valid; +}; + +struct mmp_clk_mix_config { + struct mmp_clk_mix_reg_info reg_info; + struct mmp_clk_mix_clk_table *table; + unsigned int table_size; + u32 *mux_table; + struct clk_div_table *div_table; + u8 div_flags; + u8 mux_flags; +}; + +struct mmp_clk_mix { + struct clk_hw hw; + struct mmp_clk_mix_reg_info reg_info; + struct mmp_clk_mix_clk_table *table; + u32 *mux_table; + struct clk_div_table *div_table; + unsigned int table_size; + u8 div_flags; + u8 mux_flags; + unsigned int type; + spinlock_t *lock; +}; + +extern const struct clk_ops mmp_clk_mix_ops; +extern struct clk *mmp_clk_register_mix(struct device *dev, + const char *name, + u8 num_parents, + const char **parent_names, + unsigned long flags, + struct mmp_clk_mix_config *config, + spinlock_t *lock); + + extern struct clk *mmp_clk_register_pll2(const char *name, const char *parent_name, unsigned long flags); extern struct clk *mmp_clk_register_apbc(const char *name, -- cgit v1.2.2 From cdce35460f5bd929cbcb75a8f436776bd0112f49 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:46 +0800 Subject: clk: mmp: add mmp private gate clock Some SOCes have this kind of the gate clock 1. There are some bits to control the gate not only one bit. 2. It is not always that "1" is to enable while "0" is to disable when write register. So we have to define the "mask", "enable_val", "disable_val" for this kind of gate clock. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-gate.c | 133 +++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/mmp/clk.h | 21 +++++++ 3 files changed, 155 insertions(+), 1 deletion(-) create mode 100644 drivers/clk/mmp/clk-gate.c diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 8bfee8605949..2855f7b686ed 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -2,7 +2,7 @@ # Makefile for mmp specific clk # -obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o +obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o diff --git a/drivers/clk/mmp/clk-gate.c b/drivers/clk/mmp/clk-gate.c new file mode 100644 index 000000000000..adbd9d64ded2 --- /dev/null +++ b/drivers/clk/mmp/clk-gate.c @@ -0,0 +1,133 @@ +/* + * mmp gate clock operation source file + * + * Copyright (C) 2014 Marvell + * Chao Xie + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include + +#include "clk.h" + +/* + * Some clocks will have mutiple bits to enable the clocks, and + * the bits to disable the clock is not same as enabling bits. + */ + +#define to_clk_mmp_gate(hw) container_of(hw, struct mmp_clk_gate, hw) + +static int mmp_clk_gate_enable(struct clk_hw *hw) +{ + struct mmp_clk_gate *gate = to_clk_mmp_gate(hw); + struct clk *clk = hw->clk; + unsigned long flags = 0; + unsigned long rate; + u32 tmp; + + if (gate->lock) + spin_lock_irqsave(gate->lock, flags); + + tmp = readl(gate->reg); + tmp &= ~gate->mask; + tmp |= gate->val_enable; + writel(tmp, gate->reg); + + if (gate->lock) + spin_unlock_irqrestore(gate->lock, flags); + + if (gate->flags & MMP_CLK_GATE_NEED_DELAY) { + rate = __clk_get_rate(clk); + /* Need delay 2 cycles. */ + udelay(2000000/rate); + } + + return 0; +} + +static void mmp_clk_gate_disable(struct clk_hw *hw) +{ + struct mmp_clk_gate *gate = to_clk_mmp_gate(hw); + unsigned long flags = 0; + u32 tmp; + + if (gate->lock) + spin_lock_irqsave(gate->lock, flags); + + tmp = readl(gate->reg); + tmp &= ~gate->mask; + tmp |= gate->val_disable; + writel(tmp, gate->reg); + + if (gate->lock) + spin_unlock_irqrestore(gate->lock, flags); +} + +static int mmp_clk_gate_is_enabled(struct clk_hw *hw) +{ + struct mmp_clk_gate *gate = to_clk_mmp_gate(hw); + unsigned long flags = 0; + u32 tmp; + + if (gate->lock) + spin_lock_irqsave(gate->lock, flags); + + tmp = readl(gate->reg); + + if (gate->lock) + spin_unlock_irqrestore(gate->lock, flags); + + return (tmp & gate->mask) == gate->val_enable; +} + +const struct clk_ops mmp_clk_gate_ops = { + .enable = mmp_clk_gate_enable, + .disable = mmp_clk_gate_disable, + .is_enabled = mmp_clk_gate_is_enabled, +}; + +struct clk *mmp_clk_register_gate(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u32 mask, u32 val_enable, u32 val_disable, + unsigned int gate_flags, spinlock_t *lock) +{ + struct mmp_clk_gate *gate; + struct clk *clk; + struct clk_init_data init; + + /* allocate the gate */ + gate = kzalloc(sizeof(*gate), GFP_KERNEL); + if (!gate) { + pr_err("%s:%s could not allocate gate clk\n", __func__, name); + return ERR_PTR(-ENOMEM); + } + + init.name = name; + init.ops = &mmp_clk_gate_ops; + init.flags = flags | CLK_IS_BASIC; + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + + /* struct clk_gate assignments */ + gate->reg = reg; + gate->mask = mask; + gate->val_enable = val_enable; + gate->val_disable = val_disable; + gate->flags = gate_flags; + gate->lock = lock; + gate->hw.init = &init; + + clk = clk_register(dev, &gate->hw); + + if (IS_ERR(clk)) + kfree(gate); + + return clk; +} diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index 26b24699ccd7..23371062072b 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -103,6 +103,27 @@ extern struct clk *mmp_clk_register_mix(struct device *dev, spinlock_t *lock); +/* Clock type "gate". MMP private gate */ +#define MMP_CLK_GATE_NEED_DELAY BIT(0) + +struct mmp_clk_gate { + struct clk_hw hw; + void __iomem *reg; + u32 mask; + u32 val_enable; + u32 val_disable; + unsigned int flags; + spinlock_t *lock; +}; + +extern const struct clk_ops mmp_clk_gate_ops; +extern struct clk *mmp_clk_register_gate(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + void __iomem *reg, u32 mask, u32 val_enable, + u32 val_disable, unsigned int gate_flags, + spinlock_t *lock); + + extern struct clk *mmp_clk_register_pll2(const char *name, const char *parent_name, unsigned long flags); extern struct clk *mmp_clk_register_apbc(const char *name, -- cgit v1.2.2 From 4661fda10f8bd57fceef8349d10900e165a0a548 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:47 +0800 Subject: clk: mmp: add basic support functions for DT support In order to support DT for mmp SOC clocks, it defines some basic APIs which are shared by all mmp SOC clock units. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk.c | 192 +++++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/mmp/clk.h | 106 +++++++++++++++++++++++++- 3 files changed, 298 insertions(+), 2 deletions(-) create mode 100644 drivers/clk/mmp/clk.c diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 2855f7b686ed..32b5b90c9fa9 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -2,7 +2,7 @@ # Makefile for mmp specific clk # -obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o +obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o clk.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o diff --git a/drivers/clk/mmp/clk.c b/drivers/clk/mmp/clk.c new file mode 100644 index 000000000000..cf038ef54c59 --- /dev/null +++ b/drivers/clk/mmp/clk.c @@ -0,0 +1,192 @@ +#include +#include +#include +#include +#include +#include + +#include "clk.h" + +void mmp_clk_init(struct device_node *np, struct mmp_clk_unit *unit, + int nr_clks) +{ + static struct clk **clk_table; + + clk_table = kcalloc(nr_clks, sizeof(struct clk *), GFP_KERNEL); + if (!clk_table) + return; + + unit->clk_table = clk_table; + unit->nr_clks = nr_clks; + unit->clk_data.clks = clk_table; + unit->clk_data.clk_num = nr_clks; + of_clk_add_provider(np, of_clk_src_onecell_get, &unit->clk_data); +} + +void mmp_register_fixed_rate_clks(struct mmp_clk_unit *unit, + struct mmp_param_fixed_rate_clk *clks, + int size) +{ + int i; + struct clk *clk; + + for (i = 0; i < size; i++) { + clk = clk_register_fixed_rate(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, + clks[i].fixed_rate); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_register_fixed_factor_clks(struct mmp_clk_unit *unit, + struct mmp_param_fixed_factor_clk *clks, + int size) +{ + struct clk *clk; + int i; + + for (i = 0; i < size; i++) { + clk = clk_register_fixed_factor(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, clks[i].mult, + clks[i].div); + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_register_general_gate_clks(struct mmp_clk_unit *unit, + struct mmp_param_general_gate_clk *clks, + void __iomem *base, int size) +{ + struct clk *clk; + int i; + + for (i = 0; i < size; i++) { + clk = clk_register_gate(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, + base + clks[i].offset, + clks[i].bit_idx, + clks[i].gate_flags, + clks[i].lock); + + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_register_gate_clks(struct mmp_clk_unit *unit, + struct mmp_param_gate_clk *clks, + void __iomem *base, int size) +{ + struct clk *clk; + int i; + + for (i = 0; i < size; i++) { + clk = mmp_clk_register_gate(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, + base + clks[i].offset, + clks[i].mask, + clks[i].val_enable, + clks[i].val_disable, + clks[i].gate_flags, + clks[i].lock); + + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_register_mux_clks(struct mmp_clk_unit *unit, + struct mmp_param_mux_clk *clks, + void __iomem *base, int size) +{ + struct clk *clk; + int i; + + for (i = 0; i < size; i++) { + clk = clk_register_mux(NULL, clks[i].name, + clks[i].parent_name, + clks[i].num_parents, + clks[i].flags, + base + clks[i].offset, + clks[i].shift, + clks[i].width, + clks[i].mux_flags, + clks[i].lock); + + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_register_div_clks(struct mmp_clk_unit *unit, + struct mmp_param_div_clk *clks, + void __iomem *base, int size) +{ + struct clk *clk; + int i; + + for (i = 0; i < size; i++) { + clk = clk_register_divider(NULL, clks[i].name, + clks[i].parent_name, + clks[i].flags, + base + clks[i].offset, + clks[i].shift, + clks[i].width, + clks[i].div_flags, + clks[i].lock); + + if (IS_ERR(clk)) { + pr_err("%s: failed to register clock %s\n", + __func__, clks[i].name); + continue; + } + if (clks[i].id) + unit->clk_table[clks[i].id] = clk; + } +} + +void mmp_clk_add(struct mmp_clk_unit *unit, unsigned int id, + struct clk *clk) +{ + if (IS_ERR_OR_NULL(clk)) { + pr_err("CLK %d has invalid pointer %p\n", id, clk); + return; + } + if (id > unit->nr_clks) { + pr_err("CLK %d is invalid\n", id); + return; + } + + unit->clk_table[id] = clk; +} diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h index 23371062072b..adf9b711b037 100644 --- a/drivers/clk/mmp/clk.h +++ b/drivers/clk/mmp/clk.h @@ -96,8 +96,8 @@ struct mmp_clk_mix { extern const struct clk_ops mmp_clk_mix_ops; extern struct clk *mmp_clk_register_mix(struct device *dev, const char *name, - u8 num_parents, const char **parent_names, + u8 num_parents, unsigned long flags, struct mmp_clk_mix_config *config, spinlock_t *lock); @@ -132,4 +132,108 @@ extern struct clk *mmp_clk_register_apbc(const char *name, extern struct clk *mmp_clk_register_apmu(const char *name, const char *parent_name, void __iomem *base, u32 enable_mask, spinlock_t *lock); + +struct mmp_clk_unit { + unsigned int nr_clks; + struct clk **clk_table; + struct clk_onecell_data clk_data; +}; + +struct mmp_param_fixed_rate_clk { + unsigned int id; + char *name; + const char *parent_name; + unsigned long flags; + unsigned long fixed_rate; +}; +void mmp_register_fixed_rate_clks(struct mmp_clk_unit *unit, + struct mmp_param_fixed_rate_clk *clks, + int size); + +struct mmp_param_fixed_factor_clk { + unsigned int id; + char *name; + const char *parent_name; + unsigned long mult; + unsigned long div; + unsigned long flags; +}; +void mmp_register_fixed_factor_clks(struct mmp_clk_unit *unit, + struct mmp_param_fixed_factor_clk *clks, + int size); + +struct mmp_param_general_gate_clk { + unsigned int id; + const char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u8 bit_idx; + u8 gate_flags; + spinlock_t *lock; +}; +void mmp_register_general_gate_clks(struct mmp_clk_unit *unit, + struct mmp_param_general_gate_clk *clks, + void __iomem *base, int size); + +struct mmp_param_gate_clk { + unsigned int id; + char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u32 mask; + u32 val_enable; + u32 val_disable; + unsigned int gate_flags; + spinlock_t *lock; +}; +void mmp_register_gate_clks(struct mmp_clk_unit *unit, + struct mmp_param_gate_clk *clks, + void __iomem *base, int size); + +struct mmp_param_mux_clk { + unsigned int id; + char *name; + const char **parent_name; + u8 num_parents; + unsigned long flags; + unsigned long offset; + u8 shift; + u8 width; + u8 mux_flags; + spinlock_t *lock; +}; +void mmp_register_mux_clks(struct mmp_clk_unit *unit, + struct mmp_param_mux_clk *clks, + void __iomem *base, int size); + +struct mmp_param_div_clk { + unsigned int id; + char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u8 shift; + u8 width; + u8 div_flags; + spinlock_t *lock; +}; +void mmp_register_div_clks(struct mmp_clk_unit *unit, + struct mmp_param_div_clk *clks, + void __iomem *base, int size); + +#define DEFINE_MIX_REG_INFO(w_d, s_d, w_m, s_m, fc) \ +{ \ + .width_div = (w_d), \ + .shift_div = (s_d), \ + .width_mux = (w_m), \ + .shift_mux = (s_m), \ + .bit_fc = (fc), \ +} + +void mmp_clk_init(struct device_node *np, struct mmp_clk_unit *unit, + int nr_clks); +void mmp_clk_add(struct mmp_clk_unit *unit, unsigned int id, + struct clk *clk); #endif -- cgit v1.2.2 From ae32a5b321c8484294d129e7980f8fcf35aa42af Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:48 +0800 Subject: clk: mmp: add reset support Some clock control regsiter has bit to reset the cotroller. So before enable the clock, we need deassert the reset pin. Make use of reset controller framework to export reset interface for device drivers, then device driver can control the reset action. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/mmp/Makefile | 2 + drivers/clk/mmp/reset.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/clk/mmp/reset.h | 31 +++++++++++++++ 3 files changed, 132 insertions(+) create mode 100644 drivers/clk/mmp/reset.c create mode 100644 drivers/clk/mmp/reset.h diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 32b5b90c9fa9..2573d7c6198e 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -4,6 +4,8 @@ obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o clk.o +obj-$(CONFIG_RESET_CONTROLLER) += reset.o + obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o obj-$(CONFIG_CPU_MMP2) += clk-mmp2.o diff --git a/drivers/clk/mmp/reset.c b/drivers/clk/mmp/reset.c new file mode 100644 index 000000000000..b54da1fe73f0 --- /dev/null +++ b/drivers/clk/mmp/reset.c @@ -0,0 +1,99 @@ +#include +#include +#include +#include +#include + +#include "reset.h" + +#define rcdev_to_unit(rcdev) container_of(rcdev, struct mmp_clk_reset_unit, rcdev) + +static int mmp_of_reset_xlate(struct reset_controller_dev *rcdev, + const struct of_phandle_args *reset_spec) +{ + struct mmp_clk_reset_unit *unit = rcdev_to_unit(rcdev); + struct mmp_clk_reset_cell *cell; + int i; + + if (WARN_ON(reset_spec->args_count != rcdev->of_reset_n_cells)) + return -EINVAL; + + for (i = 0; i < rcdev->nr_resets; i++) { + cell = &unit->cells[i]; + if (cell->clk_id == reset_spec->args[0]) + break; + } + + if (i == rcdev->nr_resets) + return -EINVAL; + + return i; +} + +static int mmp_clk_reset_assert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct mmp_clk_reset_unit *unit = rcdev_to_unit(rcdev); + struct mmp_clk_reset_cell *cell; + unsigned long flags = 0; + u32 val; + + cell = &unit->cells[id]; + if (cell->lock) + spin_lock_irqsave(cell->lock, flags); + + val = readl(cell->reg); + val |= cell->bits; + writel(val, cell->reg); + + if (cell->lock) + spin_unlock_irqrestore(cell->lock, flags); + + return 0; +} + +static int mmp_clk_reset_deassert(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct mmp_clk_reset_unit *unit = rcdev_to_unit(rcdev); + struct mmp_clk_reset_cell *cell; + unsigned long flags = 0; + u32 val; + + cell = &unit->cells[id]; + if (cell->lock) + spin_lock_irqsave(cell->lock, flags); + + val = readl(cell->reg); + val &= ~cell->bits; + writel(val, cell->reg); + + if (cell->lock) + spin_unlock_irqrestore(cell->lock, flags); + + return 0; +} + +static struct reset_control_ops mmp_clk_reset_ops = { + .assert = mmp_clk_reset_assert, + .deassert = mmp_clk_reset_deassert, +}; + +void mmp_clk_reset_register(struct device_node *np, + struct mmp_clk_reset_cell *cells, int nr_resets) +{ + struct mmp_clk_reset_unit *unit; + + unit = kzalloc(sizeof(*unit), GFP_KERNEL); + if (!unit) + return; + + unit->cells = cells; + unit->rcdev.of_reset_n_cells = 1; + unit->rcdev.nr_resets = nr_resets; + unit->rcdev.ops = &mmp_clk_reset_ops; + unit->rcdev.of_node = np; + unit->rcdev.of_xlate = mmp_of_reset_xlate; + + reset_controller_register(&unit->rcdev); +} diff --git a/drivers/clk/mmp/reset.h b/drivers/clk/mmp/reset.h new file mode 100644 index 000000000000..be8b1a7000f7 --- /dev/null +++ b/drivers/clk/mmp/reset.h @@ -0,0 +1,31 @@ +#ifndef __MACH_MMP_CLK_RESET_H +#define __MACH_MMP_CLK_RESET_H + +#include + +#define MMP_RESET_INVERT 1 + +struct mmp_clk_reset_cell { + unsigned int clk_id; + void __iomem *reg; + u32 bits; + unsigned int flags; + spinlock_t *lock; +}; + +struct mmp_clk_reset_unit { + struct reset_controller_dev rcdev; + struct mmp_clk_reset_cell *cells; +}; + +#ifdef CONFIG_RESET_CONTROLLER +void mmp_clk_reset_register(struct device_node *np, + struct mmp_clk_reset_cell *cells, int nr_resets); +#else +static inline void mmp_clk_reset_register(struct device_node *np, + struct mmp_clk_reset_cell *cells, int nr_resets) +{ +} +#endif + +#endif -- cgit v1.2.2 From ab08aefcd12d4e21abb28264ca77a430dcce7ebd Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:49 +0800 Subject: clk: mmp: add pxa168 DT support for clock driver It adds the DT support for pxa168 clock subsystem. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- .../devicetree/bindings/clock/marvell,pxa168.txt | 21 ++ drivers/clk/mmp/Makefile | 2 + drivers/clk/mmp/clk-of-pxa168.c | 279 +++++++++++++++++++++ include/dt-bindings/clock/marvell,pxa168.h | 57 +++++ 4 files changed, 359 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/marvell,pxa168.txt create mode 100644 drivers/clk/mmp/clk-of-pxa168.c create mode 100644 include/dt-bindings/clock/marvell,pxa168.h diff --git a/Documentation/devicetree/bindings/clock/marvell,pxa168.txt b/Documentation/devicetree/bindings/clock/marvell,pxa168.txt new file mode 100644 index 000000000000..c62eb1d173a6 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/marvell,pxa168.txt @@ -0,0 +1,21 @@ +* Marvell PXA168 Clock Controller + +The PXA168 clock subsystem generates and supplies clock to various +controllers within the PXA168 SoC. + +Required Properties: + +- compatible: should be one of the following. + - "marvell,pxa168-clock" - controller compatible with PXA168 SoC. + +- reg: physical base address of the clock subsystem and length of memory mapped + region. There are 3 places in SOC has clock control logic: + "mpmu", "apmu", "apbc". So three reg spaces need to be defined. + +- #clock-cells: should be 1. +- #reset-cells: should be 1. + +Each clock is assigned an identifier and client nodes use this identifier +to specify the clock which they consume. + +All these identifier could be found in . diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 2573d7c6198e..733acc7aa484 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -6,6 +6,8 @@ obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o clk.o obj-$(CONFIG_RESET_CONTROLLER) += reset.o +obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o + obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o obj-$(CONFIG_CPU_MMP2) += clk-mmp2.o diff --git a/drivers/clk/mmp/clk-of-pxa168.c b/drivers/clk/mmp/clk-of-pxa168.c new file mode 100644 index 000000000000..5b1810dc4bd2 --- /dev/null +++ b/drivers/clk/mmp/clk-of-pxa168.c @@ -0,0 +1,279 @@ +/* + * pxa168 clock framework source file + * + * Copyright (C) 2012 Marvell + * Chao Xie + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" +#include "reset.h" + +#define APBC_RTC 0x28 +#define APBC_TWSI0 0x2c +#define APBC_KPC 0x30 +#define APBC_UART0 0x0 +#define APBC_UART1 0x4 +#define APBC_GPIO 0x8 +#define APBC_PWM0 0xc +#define APBC_PWM1 0x10 +#define APBC_PWM2 0x14 +#define APBC_PWM3 0x18 +#define APBC_SSP0 0x81c +#define APBC_SSP1 0x820 +#define APBC_SSP2 0x84c +#define APBC_SSP3 0x858 +#define APBC_SSP4 0x85c +#define APBC_TWSI1 0x6c +#define APBC_UART2 0x70 +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_USB 0x5c +#define APMU_DISP0 0x4c +#define APMU_CCIC0 0x50 +#define APMU_DFC 0x60 +#define MPMU_UART_PLL 0x14 + +struct pxa168_clk_unit { + struct mmp_clk_unit unit; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; +}; + +static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { + {PXA168_CLK_CLK32, "clk32", NULL, CLK_IS_ROOT, 32768}, + {PXA168_CLK_VCTCXO, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, + {PXA168_CLK_PLL1, "pll1", NULL, CLK_IS_ROOT, 624000000}, +}; + +static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { + {PXA168_CLK_PLL1_2, "pll1_2", "pll1", 1, 2, 0}, + {PXA168_CLK_PLL1_4, "pll1_4", "pll1_2", 1, 2, 0}, + {PXA168_CLK_PLL1_8, "pll1_8", "pll1_4", 1, 2, 0}, + {PXA168_CLK_PLL1_16, "pll1_16", "pll1_8", 1, 2, 0}, + {PXA168_CLK_PLL1_6, "pll1_6", "pll1_2", 1, 3, 0}, + {PXA168_CLK_PLL1_12, "pll1_12", "pll1_6", 1, 2, 0}, + {PXA168_CLK_PLL1_24, "pll1_24", "pll1_12", 1, 2, 0}, + {PXA168_CLK_PLL1_48, "pll1_48", "pll1_24", 1, 2, 0}, + {PXA168_CLK_PLL1_96, "pll1_96", "pll1_48", 1, 2, 0}, + {PXA168_CLK_PLL1_13, "pll1_13", "pll1", 1, 13, 0}, + {PXA168_CLK_PLL1_13_1_5, "pll1_13_1_5", "pll1_13", 2, 3, 0}, + {PXA168_CLK_PLL1_2_1_5, "pll1_2_1_5", "pll1_2", 2, 3, 0}, + {PXA168_CLK_PLL1_3_16, "pll1_3_16", "pll1", 3, 16, 0}, +}; + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 8125, .den = 1536}, /*14.745MHZ */ +}; + +static void pxa168_pll_init(struct pxa168_clk_unit *pxa_unit) +{ + struct clk *clk; + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_fixed_rate_clks(unit, fixed_rate_clks, + ARRAY_SIZE(fixed_rate_clks)); + + mmp_register_fixed_factor_clks(unit, fixed_factor_clks, + ARRAY_SIZE(fixed_factor_clks)); + + clk = mmp_clk_register_factor("uart_pll", "pll1_4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), NULL); + mmp_clk_add(unit, PXA168_CLK_UART_PLL, clk); +} + +static DEFINE_SPINLOCK(uart0_lock); +static DEFINE_SPINLOCK(uart1_lock); +static DEFINE_SPINLOCK(uart2_lock); +static const char *uart_parent_names[] = {"pll1_3_16", "uart_pll"}; + +static DEFINE_SPINLOCK(ssp0_lock); +static DEFINE_SPINLOCK(ssp1_lock); +static DEFINE_SPINLOCK(ssp2_lock); +static DEFINE_SPINLOCK(ssp3_lock); +static DEFINE_SPINLOCK(ssp4_lock); +static const char *ssp_parent_names[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; + +static DEFINE_SPINLOCK(reset_lock); + +static struct mmp_param_mux_clk apbc_mux_clks[] = { + {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART0, 4, 3, 0, &uart0_lock}, + {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock}, + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART2, 4, 3, 0, &uart2_lock}, + {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP0, 4, 3, 0, &ssp0_lock}, + {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP1, 4, 3, 0, &ssp1_lock}, + {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP2, 4, 3, 0, &ssp2_lock}, + {0, "ssp3_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP3, 4, 3, 0, &ssp3_lock}, + {0, "ssp4_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP4, 4, 3, 0, &ssp4_lock}, +}; + +static struct mmp_param_gate_clk apbc_gate_clks[] = { + {PXA168_CLK_TWSI0, "twsi0_clk", "pll1_13_1_5", CLK_SET_RATE_PARENT, APBC_TWSI0, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_TWSI1, "twsi1_clk", "pll1_13_1_5", CLK_SET_RATE_PARENT, APBC_TWSI1, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_GPIO, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_KPC, 0x3, 0x3, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA168_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_RTC, 0x83, 0x83, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA168_CLK_PWM0, "pwm0_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM0, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_PWM1, "pwm1_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM1, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_PWM2, "pwm2_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM2, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA168_CLK_PWM3, "pwm3_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM3, 0x3, 0x3, 0x0, 0, &reset_lock}, + /* The gate clocks has mux parent. */ + {PXA168_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, APBC_UART0, 0x3, 0x3, 0x0, 0, &uart0_lock}, + {PXA168_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_UART1, 0x3, 0x3, 0x0, 0, &uart1_lock}, + {PXA168_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, APBC_UART2, 0x3, 0x3, 0x0, 0, &uart2_lock}, + {PXA168_CLK_SSP0, "ssp0_clk", "ssp0_mux", CLK_SET_RATE_PARENT, APBC_SSP0, 0x3, 0x3, 0x0, 0, &ssp0_lock}, + {PXA168_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, APBC_SSP1, 0x3, 0x3, 0x0, 0, &ssp1_lock}, + {PXA168_CLK_SSP2, "ssp2_clk", "ssp2_mux", CLK_SET_RATE_PARENT, APBC_SSP2, 0x3, 0x3, 0x0, 0, &ssp2_lock}, + {PXA168_CLK_SSP3, "ssp3_clk", "ssp3_mux", CLK_SET_RATE_PARENT, APBC_SSP3, 0x3, 0x3, 0x0, 0, &ssp3_lock}, + {PXA168_CLK_SSP4, "ssp4_clk", "ssp4_mux", CLK_SET_RATE_PARENT, APBC_SSP4, 0x3, 0x3, 0x0, 0, &ssp4_lock}, +}; + +static void pxa168_apb_periph_clk_init(struct pxa168_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_mux_clks)); + + mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_gate_clks)); + +} + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static const char *sdh_parent_names[] = {"pll1_12", "pll1_13"}; + +static DEFINE_SPINLOCK(usb_lock); + +static DEFINE_SPINLOCK(disp0_lock); +static const char *disp_parent_names[] = {"pll1_2", "pll1_12"}; + +static DEFINE_SPINLOCK(ccic0_lock); +static const char *ccic_parent_names[] = {"pll1_2", "pll1_12"}; +static const char *ccic_phy_parent_names[] = {"pll1_6", "pll1_12"}; + +static struct mmp_param_mux_clk apmu_mux_clks[] = { + {0, "sdh0_mux", sdh_parent_names, ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, APMU_SDH0, 6, 1, 0, &sdh0_lock}, + {0, "sdh1_mux", sdh_parent_names, ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, APMU_SDH1, 6, 1, 0, &sdh1_lock}, + {0, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 1, 0, &disp0_lock}, + {0, "ccic0_mux", ccic_parent_names, ARRAY_SIZE(ccic_parent_names), CLK_SET_RATE_PARENT, APMU_CCIC0, 6, 1, 0, &ccic0_lock}, + {0, "ccic0_phy_mux", ccic_phy_parent_names, ARRAY_SIZE(ccic_phy_parent_names), CLK_SET_RATE_PARENT, APMU_CCIC0, 7, 1, 0, &ccic0_lock}, +}; + +static struct mmp_param_div_clk apmu_div_clks[] = { + {0, "ccic0_sphy_div", "ccic0_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 10, 5, 0, &ccic0_lock}, +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA168_CLK_DFC, "dfc_clk", "pll1_4", CLK_SET_RATE_PARENT, APMU_DFC, 0x19b, 0x19b, 0x0, 0, NULL}, + {PXA168_CLK_USB, "usb_clk", "usb_pll", 0, APMU_USB, 0x9, 0x9, 0x0, 0, &usb_lock}, + {PXA168_CLK_SPH, "sph_clk", "usb_pll", 0, APMU_USB, 0x12, 0x12, 0x0, 0, &usb_lock}, + /* The gate clocks has mux parent. */ + {PXA168_CLK_SDH0, "sdh0_clk", "sdh0_mux", CLK_SET_RATE_PARENT, APMU_SDH0, 0x1b, 0x1b, 0x0, 0, &sdh0_lock}, + {PXA168_CLK_SDH1, "sdh1_clk", "sdh1_mux", CLK_SET_RATE_PARENT, APMU_SDH1, 0x1b, 0x1b, 0x0, 0, &sdh1_lock}, + {PXA168_CLK_DISP0, "disp0_clk", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1b, 0x1b, 0x0, 0, &disp0_lock}, + {PXA168_CLK_CCIC0, "ccic0_clk", "ccic0_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x1b, 0x1b, 0x0, 0, &ccic0_lock}, + {PXA168_CLK_CCIC0_PHY, "ccic0_phy_clk", "ccic0_phy_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x24, 0x24, 0x0, 0, &ccic0_lock}, + {PXA168_CLK_CCIC0_SPHY, "ccic0_sphy_clk", "ccic0_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x300, 0x300, 0x0, 0, &ccic0_lock}, +}; + +static void pxa168_axi_periph_clk_init(struct pxa168_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apmu_mux_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_mux_clks)); + + mmp_register_div_clks(unit, apmu_div_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_div_clks)); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static void pxa168_clk_reset_init(struct device_node *np, + struct pxa168_clk_unit *pxa_unit) +{ + struct mmp_clk_reset_cell *cells; + int i, nr_resets; + + nr_resets = ARRAY_SIZE(apbc_gate_clks); + cells = kcalloc(nr_resets, sizeof(*cells), GFP_KERNEL); + if (!cells) + return; + + for (i = 0; i < nr_resets; i++) { + cells[i].clk_id = apbc_gate_clks[i].id; + cells[i].reg = pxa_unit->apbc_base + apbc_gate_clks[i].offset; + cells[i].flags = 0; + cells[i].lock = apbc_gate_clks[i].lock; + cells[i].bits = 0x4; + } + + mmp_clk_reset_register(np, cells, nr_resets); +} + +static void __init pxa168_clk_init(struct device_node *np) +{ + struct pxa168_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->mpmu_base = of_iomap(np, 0); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map mpmu registers\n"); + return; + } + + pxa_unit->apmu_base = of_iomap(np, 1); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map apmu registers\n"); + return; + } + + pxa_unit->apbc_base = of_iomap(np, 2); + if (!pxa_unit->apbc_base) { + pr_err("failed to map apbc registers\n"); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA168_NR_CLKS); + + pxa168_pll_init(pxa_unit); + + pxa168_apb_periph_clk_init(pxa_unit); + + pxa168_axi_periph_clk_init(pxa_unit); + + pxa168_clk_reset_init(np, pxa_unit); +} + +CLK_OF_DECLARE(pxa168_clk, "marvell,pxa168-clock", pxa168_clk_init); diff --git a/include/dt-bindings/clock/marvell,pxa168.h b/include/dt-bindings/clock/marvell,pxa168.h new file mode 100644 index 000000000000..79630b9d74b8 --- /dev/null +++ b/include/dt-bindings/clock/marvell,pxa168.h @@ -0,0 +1,57 @@ +#ifndef __DTS_MARVELL_PXA168_CLOCK_H +#define __DTS_MARVELL_PXA168_CLOCK_H + +/* fixed clocks and plls */ +#define PXA168_CLK_CLK32 1 +#define PXA168_CLK_VCTCXO 2 +#define PXA168_CLK_PLL1 3 +#define PXA168_CLK_PLL1_2 8 +#define PXA168_CLK_PLL1_4 9 +#define PXA168_CLK_PLL1_8 10 +#define PXA168_CLK_PLL1_16 11 +#define PXA168_CLK_PLL1_6 12 +#define PXA168_CLK_PLL1_12 13 +#define PXA168_CLK_PLL1_24 14 +#define PXA168_CLK_PLL1_48 15 +#define PXA168_CLK_PLL1_96 16 +#define PXA168_CLK_PLL1_13 17 +#define PXA168_CLK_PLL1_13_1_5 18 +#define PXA168_CLK_PLL1_2_1_5 19 +#define PXA168_CLK_PLL1_3_16 20 +#define PXA168_CLK_UART_PLL 27 + +/* apb periphrals */ +#define PXA168_CLK_TWSI0 60 +#define PXA168_CLK_TWSI1 61 +#define PXA168_CLK_TWSI2 62 +#define PXA168_CLK_TWSI3 63 +#define PXA168_CLK_GPIO 64 +#define PXA168_CLK_KPC 65 +#define PXA168_CLK_RTC 66 +#define PXA168_CLK_PWM0 67 +#define PXA168_CLK_PWM1 68 +#define PXA168_CLK_PWM2 69 +#define PXA168_CLK_PWM3 70 +#define PXA168_CLK_UART0 71 +#define PXA168_CLK_UART1 72 +#define PXA168_CLK_UART2 73 +#define PXA168_CLK_SSP0 74 +#define PXA168_CLK_SSP1 75 +#define PXA168_CLK_SSP2 76 +#define PXA168_CLK_SSP3 77 +#define PXA168_CLK_SSP4 78 + +/* axi periphrals */ +#define PXA168_CLK_DFC 100 +#define PXA168_CLK_SDH0 101 +#define PXA168_CLK_SDH1 102 +#define PXA168_CLK_SDH2 103 +#define PXA168_CLK_USB 104 +#define PXA168_CLK_SPH 105 +#define PXA168_CLK_DISP0 106 +#define PXA168_CLK_CCIC0 107 +#define PXA168_CLK_CCIC0_PHY 108 +#define PXA168_CLK_CCIC0_SPHY 109 + +#define PXA168_NR_CLKS 200 +#endif -- cgit v1.2.2 From 2bc61da9f7ff422117a68bef0d309a29affd023a Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:50 +0800 Subject: clk: mmp: add pxa910 DT support for clock driver It adds the DT support for pxa910 clock subsystem. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- .../devicetree/bindings/clock/marvell,pxa910.txt | 21 ++ drivers/clk/mmp/Makefile | 2 +- drivers/clk/mmp/clk-of-pxa910.c | 301 +++++++++++++++++++++ include/dt-bindings/clock/marvell,pxa910.h | 54 ++++ 4 files changed, 377 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/clock/marvell,pxa910.txt create mode 100644 drivers/clk/mmp/clk-of-pxa910.c create mode 100644 include/dt-bindings/clock/marvell,pxa910.h diff --git a/Documentation/devicetree/bindings/clock/marvell,pxa910.txt b/Documentation/devicetree/bindings/clock/marvell,pxa910.txt new file mode 100644 index 000000000000..d9f41f3c03a0 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/marvell,pxa910.txt @@ -0,0 +1,21 @@ +* Marvell PXA910 Clock Controller + +The PXA910 clock subsystem generates and supplies clock to various +controllers within the PXA910 SoC. + +Required Properties: + +- compatible: should be one of the following. + - "marvell,pxa910-clock" - controller compatible with PXA910 SoC. + +- reg: physical base address of the clock subsystem and length of memory mapped + region. There are 4 places in SOC has clock control logic: + "mpmu", "apmu", "apbc", "apbcp". So four reg spaces need to be defined. + +- #clock-cells: should be 1. +- #reset-cells: should be 1. + +Each clock is assigned an identifier and client nodes use this identifier +to specify the clock which they consume. + +All these identifier could be found in . diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 733acc7aa484..947cd74a82a7 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -6,7 +6,7 @@ obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o clk.o obj-$(CONFIG_RESET_CONTROLLER) += reset.o -obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o +obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o diff --git a/drivers/clk/mmp/clk-of-pxa910.c b/drivers/clk/mmp/clk-of-pxa910.c new file mode 100644 index 000000000000..5e3c80dad336 --- /dev/null +++ b/drivers/clk/mmp/clk-of-pxa910.c @@ -0,0 +1,301 @@ +/* + * pxa910 clock framework source file + * + * Copyright (C) 2012 Marvell + * Chao Xie + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" +#include "reset.h" + +#define APBC_RTC 0x28 +#define APBC_TWSI0 0x2c +#define APBC_KPC 0x18 +#define APBC_UART0 0x0 +#define APBC_UART1 0x4 +#define APBC_GPIO 0x8 +#define APBC_PWM0 0xc +#define APBC_PWM1 0x10 +#define APBC_PWM2 0x14 +#define APBC_PWM3 0x18 +#define APBC_SSP0 0x1c +#define APBC_SSP1 0x20 +#define APBC_SSP2 0x4c +#define APBCP_TWSI1 0x28 +#define APBCP_UART2 0x1c +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_USB 0x5c +#define APMU_DISP0 0x4c +#define APMU_CCIC0 0x50 +#define APMU_DFC 0x60 +#define MPMU_UART_PLL 0x14 + +struct pxa910_clk_unit { + struct mmp_clk_unit unit; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; + void __iomem *apbcp_base; +}; + +static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { + {PXA910_CLK_CLK32, "clk32", NULL, CLK_IS_ROOT, 32768}, + {PXA910_CLK_VCTCXO, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, + {PXA910_CLK_PLL1, "pll1", NULL, CLK_IS_ROOT, 624000000}, +}; + +static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { + {PXA910_CLK_PLL1_2, "pll1_2", "pll1", 1, 2, 0}, + {PXA910_CLK_PLL1_4, "pll1_4", "pll1_2", 1, 2, 0}, + {PXA910_CLK_PLL1_8, "pll1_8", "pll1_4", 1, 2, 0}, + {PXA910_CLK_PLL1_16, "pll1_16", "pll1_8", 1, 2, 0}, + {PXA910_CLK_PLL1_6, "pll1_6", "pll1_2", 1, 3, 0}, + {PXA910_CLK_PLL1_12, "pll1_12", "pll1_6", 1, 2, 0}, + {PXA910_CLK_PLL1_24, "pll1_24", "pll1_12", 1, 2, 0}, + {PXA910_CLK_PLL1_48, "pll1_48", "pll1_24", 1, 2, 0}, + {PXA910_CLK_PLL1_96, "pll1_96", "pll1_48", 1, 2, 0}, + {PXA910_CLK_PLL1_13, "pll1_13", "pll1", 1, 13, 0}, + {PXA910_CLK_PLL1_13_1_5, "pll1_13_1_5", "pll1_13", 2, 3, 0}, + {PXA910_CLK_PLL1_2_1_5, "pll1_2_1_5", "pll1_2", 2, 3, 0}, + {PXA910_CLK_PLL1_3_16, "pll1_3_16", "pll1", 3, 16, 0}, +}; + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 8125, .den = 1536}, /*14.745MHZ */ +}; + +static void pxa910_pll_init(struct pxa910_clk_unit *pxa_unit) +{ + struct clk *clk; + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_fixed_rate_clks(unit, fixed_rate_clks, + ARRAY_SIZE(fixed_rate_clks)); + + mmp_register_fixed_factor_clks(unit, fixed_factor_clks, + ARRAY_SIZE(fixed_factor_clks)); + + clk = mmp_clk_register_factor("uart_pll", "pll1_4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), NULL); + mmp_clk_add(unit, PXA910_CLK_UART_PLL, clk); +} + +static DEFINE_SPINLOCK(uart0_lock); +static DEFINE_SPINLOCK(uart1_lock); +static DEFINE_SPINLOCK(uart2_lock); +static const char *uart_parent_names[] = {"pll1_3_16", "uart_pll"}; + +static DEFINE_SPINLOCK(ssp0_lock); +static DEFINE_SPINLOCK(ssp1_lock); +static const char *ssp_parent_names[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; + +static DEFINE_SPINLOCK(reset_lock); + +static struct mmp_param_mux_clk apbc_mux_clks[] = { + {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART0, 4, 3, 0, &uart0_lock}, + {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock}, + {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP0, 4, 3, 0, &ssp0_lock}, + {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP1, 4, 3, 0, &ssp1_lock}, +}; + +static struct mmp_param_mux_clk apbcp_mux_clks[] = { + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBCP_UART2, 4, 3, 0, &uart2_lock}, +}; + +static struct mmp_param_gate_clk apbc_gate_clks[] = { + {PXA910_CLK_TWSI0, "twsi0_clk", "pll1_13_1_5", CLK_SET_RATE_PARENT, APBC_TWSI0, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA910_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_GPIO, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA910_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_KPC, 0x3, 0x3, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA910_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_RTC, 0x83, 0x83, 0x0, MMP_CLK_GATE_NEED_DELAY, NULL}, + {PXA910_CLK_PWM0, "pwm0_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM0, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA910_CLK_PWM1, "pwm1_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM1, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA910_CLK_PWM2, "pwm2_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM2, 0x3, 0x3, 0x0, 0, &reset_lock}, + {PXA910_CLK_PWM3, "pwm3_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM3, 0x3, 0x3, 0x0, 0, &reset_lock}, + /* The gate clocks has mux parent. */ + {PXA910_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, APBC_UART0, 0x3, 0x3, 0x0, 0, &uart0_lock}, + {PXA910_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_UART1, 0x3, 0x3, 0x0, 0, &uart1_lock}, + {PXA910_CLK_SSP0, "ssp0_clk", "ssp0_mux", CLK_SET_RATE_PARENT, APBC_SSP0, 0x3, 0x3, 0x0, 0, &ssp0_lock}, + {PXA910_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, APBC_SSP1, 0x3, 0x3, 0x0, 0, &ssp1_lock}, +}; + +static struct mmp_param_gate_clk apbcp_gate_clks[] = { + {PXA910_CLK_TWSI1, "twsi1_clk", "pll1_13_1_5", CLK_SET_RATE_PARENT, APBCP_TWSI1, 0x3, 0x3, 0x0, 0, &reset_lock}, + /* The gate clocks has mux parent. */ + {PXA910_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, APBCP_UART2, 0x3, 0x3, 0x0, 0, &uart2_lock}, +}; + +static void pxa910_apb_periph_clk_init(struct pxa910_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_mux_clks)); + + mmp_register_mux_clks(unit, apbcp_mux_clks, pxa_unit->apbcp_base, + ARRAY_SIZE(apbcp_mux_clks)); + + mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_gate_clks)); + + mmp_register_gate_clks(unit, apbcp_gate_clks, pxa_unit->apbcp_base, + ARRAY_SIZE(apbcp_gate_clks)); +} + +static DEFINE_SPINLOCK(sdh0_lock); +static DEFINE_SPINLOCK(sdh1_lock); +static const char *sdh_parent_names[] = {"pll1_12", "pll1_13"}; + +static DEFINE_SPINLOCK(usb_lock); + +static DEFINE_SPINLOCK(disp0_lock); +static const char *disp_parent_names[] = {"pll1_2", "pll1_12"}; + +static DEFINE_SPINLOCK(ccic0_lock); +static const char *ccic_parent_names[] = {"pll1_2", "pll1_12"}; +static const char *ccic_phy_parent_names[] = {"pll1_6", "pll1_12"}; + +static struct mmp_param_mux_clk apmu_mux_clks[] = { + {0, "sdh0_mux", sdh_parent_names, ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, APMU_SDH0, 6, 1, 0, &sdh0_lock}, + {0, "sdh1_mux", sdh_parent_names, ARRAY_SIZE(sdh_parent_names), CLK_SET_RATE_PARENT, APMU_SDH1, 6, 1, 0, &sdh1_lock}, + {0, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 1, 0, &disp0_lock}, + {0, "ccic0_mux", ccic_parent_names, ARRAY_SIZE(ccic_parent_names), CLK_SET_RATE_PARENT, APMU_CCIC0, 6, 1, 0, &ccic0_lock}, + {0, "ccic0_phy_mux", ccic_phy_parent_names, ARRAY_SIZE(ccic_phy_parent_names), CLK_SET_RATE_PARENT, APMU_CCIC0, 7, 1, 0, &ccic0_lock}, +}; + +static struct mmp_param_div_clk apmu_div_clks[] = { + {0, "ccic0_sphy_div", "ccic0_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 10, 5, 0, &ccic0_lock}, +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {PXA910_CLK_DFC, "dfc_clk", "pll1_4", CLK_SET_RATE_PARENT, APMU_DFC, 0x19b, 0x19b, 0x0, 0, NULL}, + {PXA910_CLK_USB, "usb_clk", "usb_pll", 0, APMU_USB, 0x9, 0x9, 0x0, 0, &usb_lock}, + {PXA910_CLK_SPH, "sph_clk", "usb_pll", 0, APMU_USB, 0x12, 0x12, 0x0, 0, &usb_lock}, + /* The gate clocks has mux parent. */ + {PXA910_CLK_SDH0, "sdh0_clk", "sdh0_mux", CLK_SET_RATE_PARENT, APMU_SDH0, 0x1b, 0x1b, 0x0, 0, &sdh0_lock}, + {PXA910_CLK_SDH1, "sdh1_clk", "sdh1_mux", CLK_SET_RATE_PARENT, APMU_SDH1, 0x1b, 0x1b, 0x0, 0, &sdh1_lock}, + {PXA910_CLK_DISP0, "disp0_clk", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1b, 0x1b, 0x0, 0, &disp0_lock}, + {PXA910_CLK_CCIC0, "ccic0_clk", "ccic0_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x1b, 0x1b, 0x0, 0, &ccic0_lock}, + {PXA910_CLK_CCIC0_PHY, "ccic0_phy_clk", "ccic0_phy_mux", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x24, 0x24, 0x0, 0, &ccic0_lock}, + {PXA910_CLK_CCIC0_SPHY, "ccic0_sphy_clk", "ccic0_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x300, 0x300, 0x0, 0, &ccic0_lock}, +}; + +static void pxa910_axi_periph_clk_init(struct pxa910_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apmu_mux_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_mux_clks)); + + mmp_register_div_clks(unit, apmu_div_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_div_clks)); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static void pxa910_clk_reset_init(struct device_node *np, + struct pxa910_clk_unit *pxa_unit) +{ + struct mmp_clk_reset_cell *cells; + int i, base, nr_resets_apbc, nr_resets_apbcp, nr_resets; + + nr_resets_apbc = ARRAY_SIZE(apbc_gate_clks); + nr_resets_apbcp = ARRAY_SIZE(apbcp_gate_clks); + nr_resets = nr_resets_apbc + nr_resets_apbcp; + cells = kcalloc(nr_resets, sizeof(*cells), GFP_KERNEL); + if (!cells) + return; + + base = 0; + for (i = 0; i < nr_resets_apbc; i++) { + cells[base + i].clk_id = apbc_gate_clks[i].id; + cells[base + i].reg = + pxa_unit->apbc_base + apbc_gate_clks[i].offset; + cells[base + i].flags = 0; + cells[base + i].lock = apbc_gate_clks[i].lock; + cells[base + i].bits = 0x4; + } + + base = nr_resets_apbc; + for (i = 0; i < nr_resets_apbcp; i++) { + cells[base + i].clk_id = apbcp_gate_clks[i].id; + cells[base + i].reg = + pxa_unit->apbc_base + apbc_gate_clks[i].offset; + cells[base + i].flags = 0; + cells[base + i].lock = apbc_gate_clks[i].lock; + cells[base + i].bits = 0x4; + } + + mmp_clk_reset_register(np, cells, nr_resets); +} + +static void __init pxa910_clk_init(struct device_node *np) +{ + struct pxa910_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->mpmu_base = of_iomap(np, 0); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map mpmu registers\n"); + return; + } + + pxa_unit->apmu_base = of_iomap(np, 1); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map apmu registers\n"); + return; + } + + pxa_unit->apbc_base = of_iomap(np, 2); + if (!pxa_unit->apbc_base) { + pr_err("failed to map apbc registers\n"); + return; + } + + pxa_unit->apbcp_base = of_iomap(np, 3); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map apbcp registers\n"); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, PXA910_NR_CLKS); + + pxa910_pll_init(pxa_unit); + + pxa910_apb_periph_clk_init(pxa_unit); + + pxa910_axi_periph_clk_init(pxa_unit); + + pxa910_clk_reset_init(np, pxa_unit); +} + +CLK_OF_DECLARE(pxa910_clk, "marvell,pxa910-clock", pxa910_clk_init); diff --git a/include/dt-bindings/clock/marvell,pxa910.h b/include/dt-bindings/clock/marvell,pxa910.h new file mode 100644 index 000000000000..719cffb2bea2 --- /dev/null +++ b/include/dt-bindings/clock/marvell,pxa910.h @@ -0,0 +1,54 @@ +#ifndef __DTS_MARVELL_PXA910_CLOCK_H +#define __DTS_MARVELL_PXA910_CLOCK_H + +/* fixed clocks and plls */ +#define PXA910_CLK_CLK32 1 +#define PXA910_CLK_VCTCXO 2 +#define PXA910_CLK_PLL1 3 +#define PXA910_CLK_PLL1_2 8 +#define PXA910_CLK_PLL1_4 9 +#define PXA910_CLK_PLL1_8 10 +#define PXA910_CLK_PLL1_16 11 +#define PXA910_CLK_PLL1_6 12 +#define PXA910_CLK_PLL1_12 13 +#define PXA910_CLK_PLL1_24 14 +#define PXA910_CLK_PLL1_48 15 +#define PXA910_CLK_PLL1_96 16 +#define PXA910_CLK_PLL1_13 17 +#define PXA910_CLK_PLL1_13_1_5 18 +#define PXA910_CLK_PLL1_2_1_5 19 +#define PXA910_CLK_PLL1_3_16 20 +#define PXA910_CLK_UART_PLL 27 + +/* apb periphrals */ +#define PXA910_CLK_TWSI0 60 +#define PXA910_CLK_TWSI1 61 +#define PXA910_CLK_TWSI2 62 +#define PXA910_CLK_TWSI3 63 +#define PXA910_CLK_GPIO 64 +#define PXA910_CLK_KPC 65 +#define PXA910_CLK_RTC 66 +#define PXA910_CLK_PWM0 67 +#define PXA910_CLK_PWM1 68 +#define PXA910_CLK_PWM2 69 +#define PXA910_CLK_PWM3 70 +#define PXA910_CLK_UART0 71 +#define PXA910_CLK_UART1 72 +#define PXA910_CLK_UART2 73 +#define PXA910_CLK_SSP0 74 +#define PXA910_CLK_SSP1 75 + +/* axi periphrals */ +#define PXA910_CLK_DFC 100 +#define PXA910_CLK_SDH0 101 +#define PXA910_CLK_SDH1 102 +#define PXA910_CLK_SDH2 103 +#define PXA910_CLK_USB 104 +#define PXA910_CLK_SPH 105 +#define PXA910_CLK_DISP0 106 +#define PXA910_CLK_CCIC0 107 +#define PXA910_CLK_CCIC0_PHY 108 +#define PXA910_CLK_CCIC0_SPHY 109 + +#define PXA910_NR_CLKS 200 +#endif -- cgit v1.2.2 From 1ec770d92a62582ac1f7e0969d6a0ddc54d5f49e Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:51 +0800 Subject: clk: mmp: add mmp2 DT support for clock driver It adds the DT support for mmp2 clock subsystem. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- .../devicetree/bindings/clock/marvell,mmp2.txt | 21 ++ drivers/clk/mmp/Makefile | 1 + drivers/clk/mmp/clk-of-mmp2.c | 334 +++++++++++++++++++++ include/dt-bindings/clock/marvell,mmp2.h | 74 +++++ 4 files changed, 430 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/marvell,mmp2.txt create mode 100644 drivers/clk/mmp/clk-of-mmp2.c create mode 100644 include/dt-bindings/clock/marvell,mmp2.h diff --git a/Documentation/devicetree/bindings/clock/marvell,mmp2.txt b/Documentation/devicetree/bindings/clock/marvell,mmp2.txt new file mode 100644 index 000000000000..af376a01f2b7 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/marvell,mmp2.txt @@ -0,0 +1,21 @@ +* Marvell MMP2 Clock Controller + +The MMP2 clock subsystem generates and supplies clock to various +controllers within the MMP2 SoC. + +Required Properties: + +- compatible: should be one of the following. + - "marvell,mmp2-clock" - controller compatible with MMP2 SoC. + +- reg: physical base address of the clock subsystem and length of memory mapped + region. There are 3 places in SOC has clock control logic: + "mpmu", "apmu", "apbc". So three reg spaces need to be defined. + +- #clock-cells: should be 1. +- #reset-cells: should be 1. + +Each clock is assigned an identifier and client nodes use this identifier +to specify the clock which they consume. + +All these identifier could be found in . diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile index 947cd74a82a7..3caaf7cc169c 100644 --- a/drivers/clk/mmp/Makefile +++ b/drivers/clk/mmp/Makefile @@ -7,6 +7,7 @@ obj-y += clk-apbc.o clk-apmu.o clk-frac.o clk-mix.o clk-gate.o clk.o obj-$(CONFIG_RESET_CONTROLLER) += reset.o obj-$(CONFIG_MACH_MMP_DT) += clk-of-pxa168.o clk-of-pxa910.o +obj-$(CONFIG_MACH_MMP2_DT) += clk-of-mmp2.o obj-$(CONFIG_CPU_PXA168) += clk-pxa168.o obj-$(CONFIG_CPU_PXA910) += clk-pxa910.o diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c new file mode 100644 index 000000000000..2cbc2b43ae52 --- /dev/null +++ b/drivers/clk/mmp/clk-of-mmp2.c @@ -0,0 +1,334 @@ +/* + * mmp2 clock framework source file + * + * Copyright (C) 2012 Marvell + * Chao Xie + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" +#include "reset.h" + +#define APBC_RTC 0x0 +#define APBC_TWSI0 0x4 +#define APBC_TWSI1 0x8 +#define APBC_TWSI2 0xc +#define APBC_TWSI3 0x10 +#define APBC_TWSI4 0x7c +#define APBC_TWSI5 0x80 +#define APBC_KPC 0x18 +#define APBC_UART0 0x2c +#define APBC_UART1 0x30 +#define APBC_UART2 0x34 +#define APBC_UART3 0x88 +#define APBC_GPIO 0x38 +#define APBC_PWM0 0x3c +#define APBC_PWM1 0x40 +#define APBC_PWM2 0x44 +#define APBC_PWM3 0x48 +#define APBC_SSP0 0x50 +#define APBC_SSP1 0x54 +#define APBC_SSP2 0x58 +#define APBC_SSP3 0x5c +#define APMU_SDH0 0x54 +#define APMU_SDH1 0x58 +#define APMU_SDH2 0xe8 +#define APMU_SDH3 0xec +#define APMU_USB 0x5c +#define APMU_DISP0 0x4c +#define APMU_DISP1 0x110 +#define APMU_CCIC0 0x50 +#define APMU_CCIC1 0xf4 +#define MPMU_UART_PLL 0x14 + +struct mmp2_clk_unit { + struct mmp_clk_unit unit; + void __iomem *mpmu_base; + void __iomem *apmu_base; + void __iomem *apbc_base; +}; + +static struct mmp_param_fixed_rate_clk fixed_rate_clks[] = { + {MMP2_CLK_CLK32, "clk32", NULL, CLK_IS_ROOT, 32768}, + {MMP2_CLK_VCTCXO, "vctcxo", NULL, CLK_IS_ROOT, 26000000}, + {MMP2_CLK_PLL1, "pll1", NULL, CLK_IS_ROOT, 800000000}, + {MMP2_CLK_PLL2, "pll2", NULL, CLK_IS_ROOT, 960000000}, + {MMP2_CLK_USB_PLL, "usb_pll", NULL, CLK_IS_ROOT, 480000000}, +}; + +static struct mmp_param_fixed_factor_clk fixed_factor_clks[] = { + {MMP2_CLK_PLL1_2, "pll1_2", "pll1", 1, 2, 0}, + {MMP2_CLK_PLL1_4, "pll1_4", "pll1_2", 1, 2, 0}, + {MMP2_CLK_PLL1_8, "pll1_8", "pll1_4", 1, 2, 0}, + {MMP2_CLK_PLL1_16, "pll1_16", "pll1_8", 1, 2, 0}, + {MMP2_CLK_PLL1_20, "pll1_20", "pll1_4", 1, 5, 0}, + {MMP2_CLK_PLL1_3, "pll1_3", "pll1", 1, 3, 0}, + {MMP2_CLK_PLL1_6, "pll1_6", "pll1_3", 1, 2, 0}, + {MMP2_CLK_PLL1_12, "pll1_12", "pll1_6", 1, 2, 0}, + {MMP2_CLK_PLL2_2, "pll2_2", "pll2", 1, 2, 0}, + {MMP2_CLK_PLL2_4, "pll2_4", "pll2_2", 1, 2, 0}, + {MMP2_CLK_PLL2_8, "pll2_8", "pll2_4", 1, 2, 0}, + {MMP2_CLK_PLL2_16, "pll2_16", "pll2_8", 1, 2, 0}, + {MMP2_CLK_PLL2_3, "pll2_3", "pll2", 1, 3, 0}, + {MMP2_CLK_PLL2_6, "pll2_6", "pll2_3", 1, 2, 0}, + {MMP2_CLK_PLL2_12, "pll2_12", "pll2_6", 1, 2, 0}, + {MMP2_CLK_VCTCXO_2, "vctcxo_2", "vctcxo", 1, 2, 0}, + {MMP2_CLK_VCTCXO_4, "vctcxo_4", "vctcxo_2", 1, 2, 0}, +}; + +static struct mmp_clk_factor_masks uart_factor_masks = { + .factor = 2, + .num_mask = 0x1fff, + .den_mask = 0x1fff, + .num_shift = 16, + .den_shift = 0, +}; + +static struct mmp_clk_factor_tbl uart_factor_tbl[] = { + {.num = 14634, .den = 2165}, /*14.745MHZ */ + {.num = 3521, .den = 689}, /*19.23MHZ */ + {.num = 9679, .den = 5728}, /*58.9824MHZ */ + {.num = 15850, .den = 9451}, /*59.429MHZ */ +}; + +static void mmp2_pll_init(struct mmp2_clk_unit *pxa_unit) +{ + struct clk *clk; + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_fixed_rate_clks(unit, fixed_rate_clks, + ARRAY_SIZE(fixed_rate_clks)); + + mmp_register_fixed_factor_clks(unit, fixed_factor_clks, + ARRAY_SIZE(fixed_factor_clks)); + + clk = mmp_clk_register_factor("uart_pll", "pll1_4", + CLK_SET_RATE_PARENT, + pxa_unit->mpmu_base + MPMU_UART_PLL, + &uart_factor_masks, uart_factor_tbl, + ARRAY_SIZE(uart_factor_tbl), NULL); + mmp_clk_add(unit, MMP2_CLK_UART_PLL, clk); +} + +static DEFINE_SPINLOCK(uart0_lock); +static DEFINE_SPINLOCK(uart1_lock); +static DEFINE_SPINLOCK(uart2_lock); +static const char *uart_parent_names[] = {"uart_pll", "vctcxo"}; + +static DEFINE_SPINLOCK(ssp0_lock); +static DEFINE_SPINLOCK(ssp1_lock); +static DEFINE_SPINLOCK(ssp2_lock); +static DEFINE_SPINLOCK(ssp3_lock); +static const char *ssp_parent_names[] = {"vctcxo_4", "vctcxo_2", "vctcxo", "pll1_16"}; + +static DEFINE_SPINLOCK(reset_lock); + +static struct mmp_param_mux_clk apbc_mux_clks[] = { + {0, "uart0_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART0, 4, 3, 0, &uart0_lock}, + {0, "uart1_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART1, 4, 3, 0, &uart1_lock}, + {0, "uart2_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART2, 4, 3, 0, &uart2_lock}, + {0, "uart3_mux", uart_parent_names, ARRAY_SIZE(uart_parent_names), CLK_SET_RATE_PARENT, APBC_UART3, 4, 3, 0, &uart2_lock}, + {0, "ssp0_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP0, 4, 3, 0, &ssp0_lock}, + {0, "ssp1_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP1, 4, 3, 0, &ssp1_lock}, + {0, "ssp2_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP2, 4, 3, 0, &ssp2_lock}, + {0, "ssp3_mux", ssp_parent_names, ARRAY_SIZE(ssp_parent_names), CLK_SET_RATE_PARENT, APBC_SSP3, 4, 3, 0, &ssp3_lock}, +}; + +static struct mmp_param_gate_clk apbc_gate_clks[] = { + {MMP2_CLK_TWSI0, "twsi0_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI0, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_TWSI1, "twsi1_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI1, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_TWSI2, "twsi2_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI2, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_TWSI3, "twsi3_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI3, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_TWSI4, "twsi4_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI4, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_TWSI5, "twsi5_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_TWSI5, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_GPIO, "gpio_clk", "vctcxo", CLK_SET_RATE_PARENT, APBC_GPIO, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_KPC, "kpc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_KPC, 0x7, 0x3, 0x0, MMP_CLK_GATE_NEED_DELAY, &reset_lock}, + {MMP2_CLK_RTC, "rtc_clk", "clk32", CLK_SET_RATE_PARENT, APBC_RTC, 0x87, 0x83, 0x0, MMP_CLK_GATE_NEED_DELAY, &reset_lock}, + {MMP2_CLK_PWM0, "pwm0_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM0, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_PWM1, "pwm1_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM1, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_PWM2, "pwm2_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM2, 0x7, 0x3, 0x0, 0, &reset_lock}, + {MMP2_CLK_PWM3, "pwm3_clk", "pll1_48", CLK_SET_RATE_PARENT, APBC_PWM3, 0x7, 0x3, 0x0, 0, &reset_lock}, + /* The gate clocks has mux parent. */ + {MMP2_CLK_UART0, "uart0_clk", "uart0_mux", CLK_SET_RATE_PARENT, APBC_UART0, 0x7, 0x3, 0x0, 0, &uart0_lock}, + {MMP2_CLK_UART1, "uart1_clk", "uart1_mux", CLK_SET_RATE_PARENT, APBC_UART1, 0x7, 0x3, 0x0, 0, &uart1_lock}, + {MMP2_CLK_UART2, "uart2_clk", "uart2_mux", CLK_SET_RATE_PARENT, APBC_UART2, 0x7, 0x3, 0x0, 0, &uart2_lock}, + {MMP2_CLK_UART3, "uart3_clk", "uart3_mux", CLK_SET_RATE_PARENT, APBC_UART3, 0x7, 0x3, 0x0, 0, &uart2_lock}, + {MMP2_CLK_SSP0, "ssp0_clk", "ssp0_mux", CLK_SET_RATE_PARENT, APBC_SSP0, 0x7, 0x3, 0x0, 0, &ssp0_lock}, + {MMP2_CLK_SSP1, "ssp1_clk", "ssp1_mux", CLK_SET_RATE_PARENT, APBC_SSP1, 0x7, 0x3, 0x0, 0, &ssp1_lock}, + {MMP2_CLK_SSP2, "ssp2_clk", "ssp2_mux", CLK_SET_RATE_PARENT, APBC_SSP2, 0x7, 0x3, 0x0, 0, &ssp2_lock}, + {MMP2_CLK_SSP3, "ssp3_clk", "ssp3_mux", CLK_SET_RATE_PARENT, APBC_SSP3, 0x7, 0x3, 0x0, 0, &ssp3_lock}, +}; + +static void mmp2_apb_periph_clk_init(struct mmp2_clk_unit *pxa_unit) +{ + struct mmp_clk_unit *unit = &pxa_unit->unit; + + mmp_register_mux_clks(unit, apbc_mux_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_mux_clks)); + + mmp_register_gate_clks(unit, apbc_gate_clks, pxa_unit->apbc_base, + ARRAY_SIZE(apbc_gate_clks)); +} + +static DEFINE_SPINLOCK(sdh_lock); +static const char *sdh_parent_names[] = {"pll1_4", "pll2", "usb_pll", "pll1"}; +static struct mmp_clk_mix_config sdh_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(4, 10, 2, 8, 32), +}; + +static DEFINE_SPINLOCK(usb_lock); + +static DEFINE_SPINLOCK(disp0_lock); +static DEFINE_SPINLOCK(disp1_lock); +static const char *disp_parent_names[] = {"pll1", "pll1_16", "pll2", "vctcxo"}; + +static DEFINE_SPINLOCK(ccic0_lock); +static DEFINE_SPINLOCK(ccic1_lock); +static const char *ccic_parent_names[] = {"pll1_2", "pll1_16", "vctcxo"}; +static struct mmp_clk_mix_config ccic0_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(4, 17, 2, 6, 32), +}; +static struct mmp_clk_mix_config ccic1_mix_config = { + .reg_info = DEFINE_MIX_REG_INFO(4, 16, 2, 6, 32), +}; + +static struct mmp_param_mux_clk apmu_mux_clks[] = { + {MMP2_CLK_DISP0_MUX, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 2, 0, &disp0_lock}, + {MMP2_CLK_DISP1_MUX, "disp1_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP1, 6, 2, 0, &disp1_lock}, +}; + +static struct mmp_param_div_clk apmu_div_clks[] = { + {0, "disp0_div", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 8, 4, 0, &disp0_lock}, + {0, "disp0_sphy_div", "disp0_mux", CLK_SET_RATE_PARENT, APMU_DISP0, 15, 5, 0, &disp0_lock}, + {0, "disp1_div", "disp1_mux", CLK_SET_RATE_PARENT, APMU_DISP1, 8, 4, 0, &disp1_lock}, + {0, "ccic0_sphy_div", "ccic0_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC0, 10, 5, 0, &ccic0_lock}, + {0, "ccic1_sphy_div", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 10, 5, 0, &ccic1_lock}, +}; + +static struct mmp_param_gate_clk apmu_gate_clks[] = { + {MMP2_CLK_USB, "usb_clk", "usb_pll", 0, APMU_USB, 0x9, 0x9, 0x0, 0, &usb_lock}, + /* The gate clocks has mux parent. */ + {MMP2_CLK_SDH0, "sdh0_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH0, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_SDH1, "sdh1_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH1, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_SDH1, "sdh2_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH2, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_SDH1, "sdh3_clk", "sdh_mix_clk", CLK_SET_RATE_PARENT, APMU_SDH3, 0x1b, 0x1b, 0x0, 0, &sdh_lock}, + {MMP2_CLK_DISP0, "disp0_clk", "disp0_div", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1b, 0x1b, 0x0, 0, &disp0_lock}, + {MMP2_CLK_DISP0_SPHY, "disp0_sphy_clk", "disp0_sphy_div", CLK_SET_RATE_PARENT, APMU_DISP0, 0x1024, 0x1024, 0x0, 0, &disp0_lock}, + {MMP2_CLK_DISP1, "disp1_clk", "disp1_div", CLK_SET_RATE_PARENT, APMU_DISP1, 0x1b, 0x1b, 0x0, 0, &disp1_lock}, + {MMP2_CLK_CCIC_ARBITER, "ccic_arbiter", "vctcxo", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x1800, 0x1800, 0x0, 0, &ccic0_lock}, + {MMP2_CLK_CCIC0, "ccic0_clk", "ccic0_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x1b, 0x1b, 0x0, 0, &ccic0_lock}, + {MMP2_CLK_CCIC0_PHY, "ccic0_phy_clk", "ccic0_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x24, 0x24, 0x0, 0, &ccic0_lock}, + {MMP2_CLK_CCIC0_SPHY, "ccic0_sphy_clk", "ccic0_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC0, 0x300, 0x300, 0x0, 0, &ccic0_lock}, + {MMP2_CLK_CCIC1, "ccic1_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x1b, 0x1b, 0x0, 0, &ccic1_lock}, + {MMP2_CLK_CCIC1_PHY, "ccic1_phy_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x24, 0x24, 0x0, 0, &ccic1_lock}, + {MMP2_CLK_CCIC1_SPHY, "ccic1_sphy_clk", "ccic1_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x300, 0x300, 0x0, 0, &ccic1_lock}, +}; + +static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit) +{ + struct clk *clk; + struct mmp_clk_unit *unit = &pxa_unit->unit; + + sdh_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_SDH0; + clk = mmp_clk_register_mix(NULL, "sdh_mix_clk", sdh_parent_names, + ARRAY_SIZE(sdh_parent_names), + CLK_SET_RATE_PARENT, + &sdh_mix_config, &sdh_lock); + + ccic0_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_CCIC0; + clk = mmp_clk_register_mix(NULL, "ccic0_mix_clk", ccic_parent_names, + ARRAY_SIZE(ccic_parent_names), + CLK_SET_RATE_PARENT, + &ccic0_mix_config, &ccic0_lock); + mmp_clk_add(unit, MMP2_CLK_CCIC0_MIX, clk); + + ccic1_mix_config.reg_info.reg_clk_ctrl = pxa_unit->apmu_base + APMU_CCIC1; + clk = mmp_clk_register_mix(NULL, "ccic1_mix_clk", ccic_parent_names, + ARRAY_SIZE(ccic_parent_names), + CLK_SET_RATE_PARENT, + &ccic1_mix_config, &ccic1_lock); + mmp_clk_add(unit, MMP2_CLK_CCIC1_MIX, clk); + + mmp_register_mux_clks(unit, apmu_mux_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_mux_clks)); + + mmp_register_div_clks(unit, apmu_div_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_div_clks)); + + mmp_register_gate_clks(unit, apmu_gate_clks, pxa_unit->apmu_base, + ARRAY_SIZE(apmu_gate_clks)); +} + +static void mmp2_clk_reset_init(struct device_node *np, + struct mmp2_clk_unit *pxa_unit) +{ + struct mmp_clk_reset_cell *cells; + int i, nr_resets; + + nr_resets = ARRAY_SIZE(apbc_gate_clks); + cells = kcalloc(nr_resets, sizeof(*cells), GFP_KERNEL); + if (!cells) + return; + + for (i = 0; i < nr_resets; i++) { + cells[i].clk_id = apbc_gate_clks[i].id; + cells[i].reg = pxa_unit->apbc_base + apbc_gate_clks[i].offset; + cells[i].flags = 0; + cells[i].lock = apbc_gate_clks[i].lock; + cells[i].bits = 0x4; + } + + mmp_clk_reset_register(np, cells, nr_resets); +} + +static void __init mmp2_clk_init(struct device_node *np) +{ + struct mmp2_clk_unit *pxa_unit; + + pxa_unit = kzalloc(sizeof(*pxa_unit), GFP_KERNEL); + if (!pxa_unit) + return; + + pxa_unit->mpmu_base = of_iomap(np, 0); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map mpmu registers\n"); + return; + } + + pxa_unit->apmu_base = of_iomap(np, 1); + if (!pxa_unit->mpmu_base) { + pr_err("failed to map apmu registers\n"); + return; + } + + pxa_unit->apbc_base = of_iomap(np, 2); + if (!pxa_unit->apbc_base) { + pr_err("failed to map apbc registers\n"); + return; + } + + mmp_clk_init(np, &pxa_unit->unit, MMP2_NR_CLKS); + + mmp2_pll_init(pxa_unit); + + mmp2_apb_periph_clk_init(pxa_unit); + + mmp2_axi_periph_clk_init(pxa_unit); + + mmp2_clk_reset_init(np, pxa_unit); +} + +CLK_OF_DECLARE(mmp2_clk, "marvell,mmp2-clock", mmp2_clk_init); diff --git a/include/dt-bindings/clock/marvell,mmp2.h b/include/dt-bindings/clock/marvell,mmp2.h new file mode 100644 index 000000000000..591f7fba89e2 --- /dev/null +++ b/include/dt-bindings/clock/marvell,mmp2.h @@ -0,0 +1,74 @@ +#ifndef __DTS_MARVELL_MMP2_CLOCK_H +#define __DTS_MARVELL_MMP2_CLOCK_H + +/* fixed clocks and plls */ +#define MMP2_CLK_CLK32 1 +#define MMP2_CLK_VCTCXO 2 +#define MMP2_CLK_PLL1 3 +#define MMP2_CLK_PLL1_2 8 +#define MMP2_CLK_PLL1_4 9 +#define MMP2_CLK_PLL1_8 10 +#define MMP2_CLK_PLL1_16 11 +#define MMP2_CLK_PLL1_3 12 +#define MMP2_CLK_PLL1_6 13 +#define MMP2_CLK_PLL1_12 14 +#define MMP2_CLK_PLL1_20 15 +#define MMP2_CLK_PLL2 16 +#define MMP2_CLK_PLL2_2 17 +#define MMP2_CLK_PLL2_4 18 +#define MMP2_CLK_PLL2_8 19 +#define MMP2_CLK_PLL2_16 20 +#define MMP2_CLK_PLL2_3 21 +#define MMP2_CLK_PLL2_6 22 +#define MMP2_CLK_PLL2_12 23 +#define MMP2_CLK_VCTCXO_2 24 +#define MMP2_CLK_VCTCXO_4 25 +#define MMP2_CLK_UART_PLL 26 +#define MMP2_CLK_USB_PLL 27 + +/* apb periphrals */ +#define MMP2_CLK_TWSI0 60 +#define MMP2_CLK_TWSI1 61 +#define MMP2_CLK_TWSI2 62 +#define MMP2_CLK_TWSI3 63 +#define MMP2_CLK_TWSI4 64 +#define MMP2_CLK_TWSI5 65 +#define MMP2_CLK_GPIO 66 +#define MMP2_CLK_KPC 67 +#define MMP2_CLK_RTC 68 +#define MMP2_CLK_PWM0 69 +#define MMP2_CLK_PWM1 70 +#define MMP2_CLK_PWM2 71 +#define MMP2_CLK_PWM3 72 +#define MMP2_CLK_UART0 73 +#define MMP2_CLK_UART1 74 +#define MMP2_CLK_UART2 75 +#define MMP2_CLK_UART3 76 +#define MMP2_CLK_SSP0 77 +#define MMP2_CLK_SSP1 78 +#define MMP2_CLK_SSP2 79 +#define MMP2_CLK_SSP3 80 + +/* axi periphrals */ +#define MMP2_CLK_SDH0 101 +#define MMP2_CLK_SDH1 102 +#define MMP2_CLK_SDH2 103 +#define MMP2_CLK_SDH3 104 +#define MMP2_CLK_USB 105 +#define MMP2_CLK_DISP0 106 +#define MMP2_CLK_DISP0_MUX 107 +#define MMP2_CLK_DISP0_SPHY 108 +#define MMP2_CLK_DISP1 109 +#define MMP2_CLK_DISP1_MUX 110 +#define MMP2_CLK_CCIC_ARBITER 111 +#define MMP2_CLK_CCIC0 112 +#define MMP2_CLK_CCIC0_MIX 113 +#define MMP2_CLK_CCIC0_PHY 114 +#define MMP2_CLK_CCIC0_SPHY 115 +#define MMP2_CLK_CCIC1 116 +#define MMP2_CLK_CCIC1_MIX 117 +#define MMP2_CLK_CCIC1_PHY 118 +#define MMP2_CLK_CCIC1_SPHY 119 + +#define MMP2_NR_CLKS 200 +#endif -- cgit v1.2.2 From 51454eb46c02eb087b9beb1b895b765394f6e374 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:52 +0800 Subject: arm: mmp: Make all the dts file to be compiled by Makefile Add items in arch/arm/boot/dt/Makefile to compile the dtb for mach-mmp. Change the dts and dtsi file to use #include instead of \include\ Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- arch/arm/boot/dts/Makefile | 3 +++ arch/arm/boot/dts/mmp2-brownstone.dts | 2 +- arch/arm/boot/dts/mmp2.dtsi | 2 +- arch/arm/boot/dts/pxa168-aspenite.dts | 2 +- arch/arm/boot/dts/pxa168.dtsi | 2 +- arch/arm/boot/dts/pxa910-dkb.dts | 2 +- arch/arm/boot/dts/pxa910.dtsi | 2 +- 7 files changed, 9 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 38c89cafa1ab..5b31c3f6d8e5 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -164,6 +164,9 @@ dtb-$(CONFIG_MACH_KIRKWOOD) += kirkwood-b3.dtb \ dtb-$(CONFIG_ARCH_LPC32XX) += ea3250.dtb phy3250.dtb dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb dtb-$(CONFIG_MACH_MESON6) += meson6-atv1200.dtb +dtb-$(CONFIG_ARCH_MMP) += pxa168-aspenite.dtb \ + pxa910-dkb.dtb \ + mmp2-brownstone.dtb dtb-$(CONFIG_ARCH_MOXART) += moxart-uc7112lx.dtb dtb-$(CONFIG_ARCH_MXC) += \ imx1-ads.dtb \ diff --git a/arch/arm/boot/dts/mmp2-brownstone.dts b/arch/arm/boot/dts/mmp2-brownstone.dts index 7f70a39459f6..350208c5e1ed 100644 --- a/arch/arm/boot/dts/mmp2-brownstone.dts +++ b/arch/arm/boot/dts/mmp2-brownstone.dts @@ -8,7 +8,7 @@ */ /dts-v1/; -/include/ "mmp2.dtsi" +#include "mmp2.dtsi" / { model = "Marvell MMP2 Brownstone Development Board"; diff --git a/arch/arm/boot/dts/mmp2.dtsi b/arch/arm/boot/dts/mmp2.dtsi index 4e8b08c628c7..e44f99639cde 100644 --- a/arch/arm/boot/dts/mmp2.dtsi +++ b/arch/arm/boot/dts/mmp2.dtsi @@ -7,7 +7,7 @@ * publishhed by the Free Software Foundation. */ -/include/ "skeleton.dtsi" +#include "skeleton.dtsi" / { aliases { diff --git a/arch/arm/boot/dts/pxa168-aspenite.dts b/arch/arm/boot/dts/pxa168-aspenite.dts index e762facb3fa4..0a988b3fb248 100644 --- a/arch/arm/boot/dts/pxa168-aspenite.dts +++ b/arch/arm/boot/dts/pxa168-aspenite.dts @@ -8,7 +8,7 @@ */ /dts-v1/; -/include/ "pxa168.dtsi" +#include "pxa168.dtsi" / { model = "Marvell PXA168 Aspenite Development Board"; diff --git a/arch/arm/boot/dts/pxa168.dtsi b/arch/arm/boot/dts/pxa168.dtsi index 975dad21ac38..bfcbdef39d0e 100644 --- a/arch/arm/boot/dts/pxa168.dtsi +++ b/arch/arm/boot/dts/pxa168.dtsi @@ -7,7 +7,7 @@ * publishhed by the Free Software Foundation. */ -/include/ "skeleton.dtsi" +#include "skeleton.dtsi" / { aliases { diff --git a/arch/arm/boot/dts/pxa910-dkb.dts b/arch/arm/boot/dts/pxa910-dkb.dts index 595492aa5053..c82f2810ec73 100644 --- a/arch/arm/boot/dts/pxa910-dkb.dts +++ b/arch/arm/boot/dts/pxa910-dkb.dts @@ -8,7 +8,7 @@ */ /dts-v1/; -/include/ "pxa910.dtsi" +#include "pxa910.dtsi" / { model = "Marvell PXA910 DKB Development Board"; diff --git a/arch/arm/boot/dts/pxa910.dtsi b/arch/arm/boot/dts/pxa910.dtsi index 0247c622f580..884c6e8642ee 100644 --- a/arch/arm/boot/dts/pxa910.dtsi +++ b/arch/arm/boot/dts/pxa910.dtsi @@ -7,7 +7,7 @@ * publishhed by the Free Software Foundation. */ -/include/ "skeleton.dtsi" +#include "skeleton.dtsi" / { aliases { -- cgit v1.2.2 From d41ef54027cc6e0697e5b77d7da393998bed7ee4 Mon Sep 17 00:00:00 2001 From: Chao Xie Date: Fri, 31 Oct 2014 10:13:53 +0800 Subject: arm: mmp: Make use of the DT supported clock Change the dtsi and dts file, soc initialization code to make use of DT support clock. So now in the code we do only need call of_clk_init to initialize the clocks. Signed-off-by: Chao Xie Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- arch/arm/boot/dts/mmp2.dtsi | 27 ++++++++++++++++++++ arch/arm/boot/dts/pxa168.dtsi | 25 +++++++++++++++++++ arch/arm/boot/dts/pxa910.dtsi | 26 ++++++++++++++++++++ arch/arm/mach-mmp/Kconfig | 12 ++++----- arch/arm/mach-mmp/mmp-dt.c | 57 ++++++++++++++----------------------------- arch/arm/mach-mmp/mmp2-dt.c | 26 +++++++------------- 6 files changed, 111 insertions(+), 62 deletions(-) diff --git a/arch/arm/boot/dts/mmp2.dtsi b/arch/arm/boot/dts/mmp2.dtsi index e44f99639cde..766bbb8495b6 100644 --- a/arch/arm/boot/dts/mmp2.dtsi +++ b/arch/arm/boot/dts/mmp2.dtsi @@ -8,6 +8,7 @@ */ #include "skeleton.dtsi" +#include / { aliases { @@ -135,6 +136,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4030000 0x1000>; interrupts = <27>; + clocks = <&soc_clocks MMP2_CLK_UART0>; + resets = <&soc_clocks MMP2_CLK_UART0>; status = "disabled"; }; @@ -142,6 +145,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4017000 0x1000>; interrupts = <28>; + clocks = <&soc_clocks MMP2_CLK_UART1>; + resets = <&soc_clocks MMP2_CLK_UART1>; status = "disabled"; }; @@ -149,6 +154,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4018000 0x1000>; interrupts = <24>; + clocks = <&soc_clocks MMP2_CLK_UART2>; + resets = <&soc_clocks MMP2_CLK_UART2>; status = "disabled"; }; @@ -156,6 +163,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4016000 0x1000>; interrupts = <46>; + clocks = <&soc_clocks MMP2_CLK_UART3>; + resets = <&soc_clocks MMP2_CLK_UART3>; status = "disabled"; }; @@ -168,6 +177,8 @@ #gpio-cells = <2>; interrupts = <49>; interrupt-names = "gpio_mux"; + clocks = <&soc_clocks MMP2_CLK_GPIO>; + resets = <&soc_clocks MMP2_CLK_GPIO>; interrupt-controller; #interrupt-cells = <1>; ranges; @@ -201,6 +212,8 @@ compatible = "mrvl,mmp-twsi"; reg = <0xd4011000 0x1000>; interrupts = <7>; + clocks = <&soc_clocks MMP2_CLK_TWSI0>; + resets = <&soc_clocks MMP2_CLK_TWSI0>; #address-cells = <1>; #size-cells = <0>; mrvl,i2c-fast-mode; @@ -211,6 +224,8 @@ compatible = "mrvl,mmp-twsi"; reg = <0xd4025000 0x1000>; interrupts = <58>; + clocks = <&soc_clocks MMP2_CLK_TWSI1>; + resets = <&soc_clocks MMP2_CLK_TWSI1>; status = "disabled"; }; @@ -220,8 +235,20 @@ interrupts = <1 0>; interrupt-names = "rtc 1Hz", "rtc alarm"; interrupt-parent = <&intcmux5>; + clocks = <&soc_clocks MMP2_CLK_RTC>; + resets = <&soc_clocks MMP2_CLK_RTC>; status = "disabled"; }; }; + + soc_clocks: clocks{ + compatible = "marvell,mmp2-clock"; + reg = <0xd4050000 0x1000>, + <0xd4282800 0x400>, + <0xd4015000 0x1000>; + reg-names = "mpmu", "apmu", "apbc"; + #clock-cells = <1>; + #reset-cells = <1>; + }; }; }; diff --git a/arch/arm/boot/dts/pxa168.dtsi b/arch/arm/boot/dts/pxa168.dtsi index bfcbdef39d0e..b899e25cbb1b 100644 --- a/arch/arm/boot/dts/pxa168.dtsi +++ b/arch/arm/boot/dts/pxa168.dtsi @@ -8,6 +8,7 @@ */ #include "skeleton.dtsi" +#include / { aliases { @@ -59,6 +60,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4017000 0x1000>; interrupts = <27>; + clocks = <&soc_clocks PXA168_CLK_UART0>; + resets = <&soc_clocks PXA168_CLK_UART0>; status = "disabled"; }; @@ -66,6 +69,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4018000 0x1000>; interrupts = <28>; + clocks = <&soc_clocks PXA168_CLK_UART1>; + resets = <&soc_clocks PXA168_CLK_UART1>; status = "disabled"; }; @@ -73,6 +78,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4026000 0x1000>; interrupts = <29>; + clocks = <&soc_clocks PXA168_CLK_UART2>; + resets = <&soc_clocks PXA168_CLK_UART2>; status = "disabled"; }; @@ -84,6 +91,8 @@ gpio-controller; #gpio-cells = <2>; interrupts = <49>; + clocks = <&soc_clocks PXA168_CLK_GPIO>; + resets = <&soc_clocks PXA168_CLK_GPIO>; interrupt-names = "gpio_mux"; interrupt-controller; #interrupt-cells = <1>; @@ -110,6 +119,8 @@ compatible = "mrvl,mmp-twsi"; reg = <0xd4011000 0x1000>; interrupts = <7>; + clocks = <&soc_clocks PXA168_CLK_TWSI0>; + resets = <&soc_clocks PXA168_CLK_TWSI0>; mrvl,i2c-fast-mode; status = "disabled"; }; @@ -118,6 +129,8 @@ compatible = "mrvl,mmp-twsi"; reg = <0xd4025000 0x1000>; interrupts = <58>; + clocks = <&soc_clocks PXA168_CLK_TWSI1>; + resets = <&soc_clocks PXA168_CLK_TWSI1>; status = "disabled"; }; @@ -126,8 +139,20 @@ reg = <0xd4010000 0x1000>; interrupts = <5 6>; interrupt-names = "rtc 1Hz", "rtc alarm"; + clocks = <&soc_clocks PXA168_CLK_RTC>; + resets = <&soc_clocks PXA168_CLK_RTC>; status = "disabled"; }; }; + + soc_clocks: clocks{ + compatible = "marvell,pxa168-clock"; + reg = <0xd4050000 0x1000>, + <0xd4282800 0x400>, + <0xd4015000 0x1000>; + reg-names = "mpmu", "apmu", "apbc"; + #clock-cells = <1>; + #reset-cells = <1>; + }; }; }; diff --git a/arch/arm/boot/dts/pxa910.dtsi b/arch/arm/boot/dts/pxa910.dtsi index 884c6e8642ee..0868f6729be1 100644 --- a/arch/arm/boot/dts/pxa910.dtsi +++ b/arch/arm/boot/dts/pxa910.dtsi @@ -8,6 +8,7 @@ */ #include "skeleton.dtsi" +#include / { aliases { @@ -71,6 +72,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4017000 0x1000>; interrupts = <27>; + clocks = <&soc_clocks PXA910_CLK_UART0>; + resets = <&soc_clocks PXA910_CLK_UART0>; status = "disabled"; }; @@ -78,6 +81,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4018000 0x1000>; interrupts = <28>; + clocks = <&soc_clocks PXA910_CLK_UART1>; + resets = <&soc_clocks PXA910_CLK_UART1>; status = "disabled"; }; @@ -85,6 +90,8 @@ compatible = "mrvl,mmp-uart"; reg = <0xd4036000 0x1000>; interrupts = <59>; + clocks = <&soc_clocks PXA910_CLK_UART2>; + resets = <&soc_clocks PXA910_CLK_UART2>; status = "disabled"; }; @@ -97,6 +104,8 @@ #gpio-cells = <2>; interrupts = <49>; interrupt-names = "gpio_mux"; + clocks = <&soc_clocks PXA910_CLK_GPIO>; + resets = <&soc_clocks PXA910_CLK_GPIO>; interrupt-controller; #interrupt-cells = <1>; ranges; @@ -124,6 +133,8 @@ #size-cells = <0>; reg = <0xd4011000 0x1000>; interrupts = <7>; + clocks = <&soc_clocks PXA910_CLK_TWSI0>; + resets = <&soc_clocks PXA910_CLK_TWSI0>; mrvl,i2c-fast-mode; status = "disabled"; }; @@ -134,6 +145,8 @@ #size-cells = <0>; reg = <0xd4037000 0x1000>; interrupts = <54>; + clocks = <&soc_clocks PXA910_CLK_TWSI1>; + resets = <&soc_clocks PXA910_CLK_TWSI1>; status = "disabled"; }; @@ -142,8 +155,21 @@ reg = <0xd4010000 0x1000>; interrupts = <5 6>; interrupt-names = "rtc 1Hz", "rtc alarm"; + clocks = <&soc_clocks PXA910_CLK_RTC>; + resets = <&soc_clocks PXA910_CLK_RTC>; status = "disabled"; }; }; + + soc_clocks: clocks{ + compatible = "marvell,pxa910-clock"; + reg = <0xd4050000 0x1000>, + <0xd4282800 0x400>, + <0xd4015000 0x1000>, + <0xd403b000 0x1000>; + reg-names = "mpmu", "apmu", "apbc", "apbcp"; + #clock-cells = <1>; + #reset-cells = <1>; + }; }; }; diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig index ebdba87b9671..fdbfadf00c84 100644 --- a/arch/arm/mach-mmp/Kconfig +++ b/arch/arm/mach-mmp/Kconfig @@ -86,11 +86,12 @@ config MACH_GPLUGD config MACH_MMP_DT bool "Support MMP (ARMv5) platforms from device tree" - select CPU_PXA168 - select CPU_PXA910 select USE_OF select PINCTRL select PINCTRL_SINGLE + select COMMON_CLK + select ARCH_HAS_RESET_CONTROLLER + select CPU_MOHAWK help Include support for Marvell MMP2 based platforms using the device tree. Needn't select any other machine while @@ -99,10 +100,12 @@ config MACH_MMP_DT config MACH_MMP2_DT bool "Support MMP2 (ARMv7) platforms from device tree" depends on !CPU_MOHAWK - select CPU_MMP2 select USE_OF select PINCTRL select PINCTRL_SINGLE + select COMMON_CLK + select ARCH_HAS_RESET_CONTROLLER + select CPU_PJ4 help Include support for Marvell MMP2 based platforms using the device tree. @@ -111,21 +114,18 @@ endmenu config CPU_PXA168 bool - select COMMON_CLK select CPU_MOHAWK help Select code specific to PXA168 config CPU_PXA910 bool - select COMMON_CLK select CPU_MOHAWK help Select code specific to PXA910 config CPU_MMP2 bool - select COMMON_CLK select CPU_PJ4 help Select code specific to MMP2. MMP2 is ARMv7 compatible. diff --git a/arch/arm/mach-mmp/mmp-dt.c b/arch/arm/mach-mmp/mmp-dt.c index cca529ceecb7..b2296c9309b8 100644 --- a/arch/arm/mach-mmp/mmp-dt.c +++ b/arch/arm/mach-mmp/mmp-dt.c @@ -11,63 +11,42 @@ #include #include +#include #include #include +#include #include "common.h" extern void __init mmp_dt_init_timer(void); -static const struct of_dev_auxdata pxa168_auxdata_lookup[] __initconst = { - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4026000, "pxa2xx-uart.2", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL), - OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp-gpio", NULL), - OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL), - {} +static const char *pxa168_dt_board_compat[] __initdata = { + "mrvl,pxa168-aspenite", + NULL, }; -static const struct of_dev_auxdata pxa910_auxdata_lookup[] __initconst = { - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.1", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4036000, "pxa2xx-uart.2", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4037000, "pxa2xx-i2c.1", NULL), - OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp-gpio", NULL), - OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL), - {} +static const char *pxa910_dt_board_compat[] __initdata = { + "mrvl,pxa910-dkb", + NULL, }; -static void __init pxa168_dt_init(void) -{ - of_platform_populate(NULL, of_default_bus_match_table, - pxa168_auxdata_lookup, NULL); -} - -static void __init pxa910_dt_init(void) +static void __init mmp_init_time(void) { - of_platform_populate(NULL, of_default_bus_match_table, - pxa910_auxdata_lookup, NULL); +#ifdef CONFIG_CACHE_TAUROS2 + tauros2_init(0); +#endif + mmp_dt_init_timer(); + of_clk_init(NULL); } -static const char *mmp_dt_board_compat[] __initdata = { - "mrvl,pxa168-aspenite", - "mrvl,pxa910-dkb", - NULL, -}; - DT_MACHINE_START(PXA168_DT, "Marvell PXA168 (Device Tree Support)") .map_io = mmp_map_io, - .init_time = mmp_dt_init_timer, - .init_machine = pxa168_dt_init, - .dt_compat = mmp_dt_board_compat, + .init_time = mmp_init_time, + .dt_compat = pxa168_dt_board_compat, MACHINE_END DT_MACHINE_START(PXA910_DT, "Marvell PXA910 (Device Tree Support)") .map_io = mmp_map_io, - .init_time = mmp_dt_init_timer, - .init_machine = pxa910_dt_init, - .dt_compat = mmp_dt_board_compat, + .init_time = mmp_init_time, + .dt_compat = pxa910_dt_board_compat, MACHINE_END diff --git a/arch/arm/mach-mmp/mmp2-dt.c b/arch/arm/mach-mmp/mmp2-dt.c index 023cb453f157..998c0f533abc 100644 --- a/arch/arm/mach-mmp/mmp2-dt.c +++ b/arch/arm/mach-mmp/mmp2-dt.c @@ -12,29 +12,22 @@ #include #include #include +#include #include #include +#include #include "common.h" extern void __init mmp_dt_init_timer(void); -static const struct of_dev_auxdata mmp2_auxdata_lookup[] __initconst = { - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4030000, "pxa2xx-uart.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4017000, "pxa2xx-uart.1", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4018000, "pxa2xx-uart.2", NULL), - OF_DEV_AUXDATA("mrvl,mmp-uart", 0xd4016000, "pxa2xx-uart.3", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4011000, "pxa2xx-i2c.0", NULL), - OF_DEV_AUXDATA("mrvl,mmp-twsi", 0xd4025000, "pxa2xx-i2c.1", NULL), - OF_DEV_AUXDATA("marvell,mmp-gpio", 0xd4019000, "mmp2-gpio", NULL), - OF_DEV_AUXDATA("mrvl,mmp-rtc", 0xd4010000, "sa1100-rtc", NULL), - {} -}; - -static void __init mmp2_dt_init(void) +static void __init mmp_init_time(void) { - of_platform_populate(NULL, of_default_bus_match_table, - mmp2_auxdata_lookup, NULL); +#ifdef CONFIG_CACHE_TAUROS2 + tauros2_init(0); +#endif + mmp_dt_init_timer(); + of_clk_init(NULL); } static const char *mmp2_dt_board_compat[] __initdata = { @@ -44,7 +37,6 @@ static const char *mmp2_dt_board_compat[] __initdata = { DT_MACHINE_START(MMP2_DT, "Marvell MMP2 (Device Tree Support)") .map_io = mmp_map_io, - .init_time = mmp_dt_init_timer, - .init_machine = mmp2_dt_init, + .init_time = mmp_init_time, .dt_compat = mmp2_dt_board_compat, MACHINE_END -- cgit v1.2.2 From f956165f07839a0643e4e01081787190692a7c29 Mon Sep 17 00:00:00 2001 From: Michael Turquette Date: Wed, 12 Nov 2014 16:43:47 -0800 Subject: MAINTAINERS: add Stephen Boyd as clk co-maintainer Signed-off-by: Michael Turquette --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index ea4d0058fd1b..46d652f166ab 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2491,6 +2491,7 @@ F: include/uapi/linux/coda*.h COMMON CLK FRAMEWORK M: Mike Turquette +M: Stephen Boyd L: linux-kernel@vger.kernel.org T: git git://git.linaro.org/people/mturquette/linux.git S: Maintained -- cgit v1.2.2 From 9aa75e6e09620dbff3ae65ff3f03d2da3129b080 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 12 Nov 2014 13:38:45 -0800 Subject: clk: rockchip: ensure HCLK_VIO2_H2P and PCLK_VIO2_H2P stay enabled Currently there is no driver owning these clocks and they have to stay up for the system to function properly, so let's mark them as CLK_IGNORE_UNUSED. Without this patch we have trouble with suspend/resume and we have trouble turning the eDP back on if it ever idles off. Signed-off-by: Dmitry Torokhov Reviewed-by: Doug Anderson Tested-by: Doug Anderson Reviewed-by: Kever Yang Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 1a9d03cf2b00..b4a74c2d79e0 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -727,14 +727,14 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(HCLK_VIP, "hclk_vip", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 15, GFLAGS), GATE(HCLK_IEP, "hclk_iep", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 3, GFLAGS), GATE(HCLK_ISP, "hclk_isp", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 1, GFLAGS), - GATE(HCLK_VIO2_H2P, "hclk_vio2_h2p", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 10, GFLAGS), + GATE(HCLK_VIO2_H2P, "hclk_vio2_h2p", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(16), 10, GFLAGS), GATE(PCLK_MIPI_DSI0, "pclk_mipi_dsi0", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 4, GFLAGS), GATE(PCLK_MIPI_DSI1, "pclk_mipi_dsi1", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 5, GFLAGS), GATE(PCLK_MIPI_CSI, "pclk_mipi_csi", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 6, GFLAGS), GATE(PCLK_LVDS_PHY, "pclk_lvds_phy", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 7, GFLAGS), GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(16), 8, GFLAGS), GATE(PCLK_HDMI_CTRL, "pclk_hdmi_ctrl", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 9, GFLAGS), - GATE(PCLK_VIO2_H2P, "pclk_vio2_h2p", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 11, GFLAGS), + GATE(PCLK_VIO2_H2P, "pclk_vio2_h2p", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(16), 11, GFLAGS), /* aclk_vio0 gates */ GATE(ACLK_VOP0, "aclk_vop0", "aclk_vio0", 0, RK3288_CLKGATE_CON(15), 5, GFLAGS), -- cgit v1.2.2 From baeb0d9b98c3450e22f8f8e4a6619b8b1d5106ff Mon Sep 17 00:00:00 2001 From: Michael Turquette Date: Thu, 13 Nov 2014 17:18:20 -0800 Subject: MAINTAINERS: clk framework git tree moved to kernel.org Signed-off-by: Michael Turquette --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 46d652f166ab..924499202dac 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2493,7 +2493,7 @@ COMMON CLK FRAMEWORK M: Mike Turquette M: Stephen Boyd L: linux-kernel@vger.kernel.org -T: git git://git.linaro.org/people/mturquette/linux.git +T: git git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git S: Maintained F: drivers/clk/ X: drivers/clk/clkdev.c -- cgit v1.2.2 From 0132234160ae46d8bd4677e37adb0b4366e05b1e Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Thu, 13 Nov 2014 15:19:21 +0800 Subject: clk: rockchip: fix rk3288 clk_usbphy480m_gate bit location in register According to rk3288 trm, the clk_usbphy480m_gate is located at bit 14 of CRU_CLKGATE5_CON register. Signed-off-by: Kever Yang Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index b4a74c2d79e0..f27cdae61fd5 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -588,7 +588,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NODIV(0, "usbphy480m_src", mux_usbphy480m_p, 0, RK3288_CLKSEL_CON(13), 11, 2, MFLAGS, - RK3288_CLKGATE_CON(5), 15, GFLAGS), + RK3288_CLKGATE_CON(5), 14, GFLAGS), COMPOSITE_NODIV(SCLK_HSICPHY480M, "sclk_hsicphy480m", mux_hsicphy480m_p, 0, RK3288_CLKSEL_CON(29), 0, 2, MFLAGS, RK3288_CLKGATE_CON(3), 6, GFLAGS), -- cgit v1.2.2 From 29e94468516cdf191ec839ee39f79e011817276d Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Thu, 13 Nov 2014 16:11:49 +0800 Subject: clk: rockchip: fix clock select order for rk3288 usbphy480m_src According to rk3288 trm, the mux selector locate at bit[12:11] of CRU_CLKSEL13_CON shows: 2'b00: select HOST0 USB pll clock (clk_otgphy1) 2'b01: select HOST1 USB pll clock (clk_otgphy2) 2'b10: select OTG USB pll clock (clk_otgphy0) The clock map is in Fig. 3-4 CRU Clock Architecture Diagram 3 - clk_otgphy0 -> USB PHY OTG - clk_otgphy1 -> USB PHY host0 - clk_otgphy2 -> USB PHY host1 Signed-off-by: Kever Yang Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index f27cdae61fd5..174589c95e33 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -195,8 +195,8 @@ PNAME(mux_hsadcout_p) = { "hsadc_src", "ext_hsadc" }; PNAME(mux_edp_24m_p) = { "ext_edp_24m", "xin24m" }; PNAME(mux_tspout_p) = { "cpll", "gpll", "npll", "xin27m" }; -PNAME(mux_usbphy480m_p) = { "sclk_otgphy0", "sclk_otgphy1", - "sclk_otgphy2" }; +PNAME(mux_usbphy480m_p) = { "sclk_otgphy1", "sclk_otgphy2", + "sclk_otgphy0" }; PNAME(mux_hsicphy480m_p) = { "cpll", "gpll", "usbphy480m_src" }; PNAME(mux_hsicphy12m_p) = { "hsicphy12m_xin12m", "hsicphy12m_usbphy" }; -- cgit v1.2.2 From fe7710fae477f648773648ea0a05b079c5b66667 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Tue, 11 Nov 2014 15:53:25 +0100 Subject: clk: add pxa25x clock drivers Move pxa25x clock drivers from arch/arm/mach-pxa to driver/clk. In the move : - convert to new clock framework legacy clocks - provide clocks as before for platform data based boards - provide clocks through devicetree with clk-pxa-dt This is the preliminary step in the conversion. The remaining steps are : - pxa3xx - once PXA is fully converted to device tree, if that happens, clk-pxa2* and clk-pxa3* should only hold the core clocks which cannot be described in devicetree. Signed-off-by: Robert Jarzmik Tested-by: Dmitry Eremin-Solenikov Signed-off-by: Michael Turquette --- drivers/clk/pxa/Makefile | 1 + drivers/clk/pxa/clk-pxa25x.c | 273 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 274 insertions(+) create mode 100644 drivers/clk/pxa/clk-pxa25x.c diff --git a/drivers/clk/pxa/Makefile b/drivers/clk/pxa/Makefile index 4ff2abcd500b..38e915344605 100644 --- a/drivers/clk/pxa/Makefile +++ b/drivers/clk/pxa/Makefile @@ -1,2 +1,3 @@ obj-y += clk-pxa.o +obj-$(CONFIG_PXA25x) += clk-pxa25x.o obj-$(CONFIG_PXA27x) += clk-pxa27x.o diff --git a/drivers/clk/pxa/clk-pxa25x.c b/drivers/clk/pxa/clk-pxa25x.c new file mode 100644 index 000000000000..6cd88d963a7f --- /dev/null +++ b/drivers/clk/pxa/clk-pxa25x.c @@ -0,0 +1,273 @@ +/* + * Marvell PXA25x family clocks + * + * Copyright (C) 2014 Robert Jarzmik + * + * Heavily inspired from former arch/arm/mach-pxa/pxa25x.c. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * For non-devicetree platforms. Once pxa is fully converted to devicetree, this + * should go away. + */ +#include +#include +#include +#include +#include +#include +#include + +#include +#include "clk-pxa.h" + +#define KHz 1000 +#define MHz (1000 * 1000) + +enum { + PXA_CORE_RUN = 0, + PXA_CORE_TURBO, +}; + +/* + * Various clock factors driven by the CCCR register. + */ + +/* Crystal Frequency to Memory Frequency Multiplier (L) */ +static unsigned char L_clk_mult[32] = { 0, 27, 32, 36, 40, 45, 0, }; + +/* Memory Frequency to Run Mode Frequency Multiplier (M) */ +static unsigned char M_clk_mult[4] = { 0, 1, 2, 4 }; + +/* Run Mode Frequency to Turbo Mode Frequency Multiplier (N) */ +/* Note: we store the value N * 2 here. */ +static unsigned char N2_clk_mult[8] = { 0, 0, 2, 3, 4, 0, 6, 0 }; + +static const char * const get_freq_khz[] = { + "core", "run", "cpll", "memory" +}; + +/* + * Get the clock frequency as reflected by CCCR and the turbo flag. + * We assume these values have been applied via a fcs. + * If info is not 0 we also display the current settings. + */ +unsigned int pxa25x_get_clk_frequency_khz(int info) +{ + struct clk *clk; + unsigned long clks[5]; + int i; + + for (i = 0; i < ARRAY_SIZE(get_freq_khz); i++) { + clk = clk_get(NULL, get_freq_khz[i]); + if (IS_ERR(clk)) { + clks[i] = 0; + } else { + clks[i] = clk_get_rate(clk); + clk_put(clk); + } + } + + if (info) { + pr_info("Run Mode clock: %ld.%02ldMHz\n", + clks[1] / 1000000, (clks[1] % 1000000) / 10000); + pr_info("Turbo Mode clock: %ld.%02ldMHz\n", + clks[2] / 1000000, (clks[2] % 1000000) / 10000); + pr_info("Memory clock: %ld.%02ldMHz\n", + clks[3] / 1000000, (clks[3] % 1000000) / 10000); + } + + return (unsigned int)clks[0]; +} + +static unsigned long clk_pxa25x_memory_get_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + unsigned long cccr = CCCR; + unsigned int m = M_clk_mult[(cccr >> 5) & 0x03]; + + return parent_rate / m; +} +PARENTS(clk_pxa25x_memory) = { "run" }; +RATE_RO_OPS(clk_pxa25x_memory, "memory"); + +PARENTS(pxa25x_pbus95) = { "ppll_95_85mhz", "ppll_95_85mhz" }; +PARENTS(pxa25x_pbus147) = { "ppll_147_46mhz", "ppll_147_46mhz" }; +PARENTS(pxa25x_osc3) = { "osc_3_6864mhz", "osc_3_6864mhz" }; + +#define PXA25X_CKEN(dev_id, con_id, parents, mult, div, \ + bit, is_lp, flags) \ + PXA_CKEN(dev_id, con_id, bit, parents, mult, div, mult, div, \ + is_lp, &CKEN, CKEN_ ## bit, flags) +#define PXA25X_PBUS95_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \ + PXA25X_CKEN(dev_id, con_id, pxa25x_pbus95_parents, mult_hp, \ + div_hp, bit, NULL, 0) +#define PXA25X_PBUS147_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay)\ + PXA25X_CKEN(dev_id, con_id, pxa25x_pbus147_parents, mult_hp, \ + div_hp, bit, NULL, 0) +#define PXA25X_OSC3_CKEN(dev_id, con_id, bit, mult_hp, div_hp, delay) \ + PXA25X_CKEN(dev_id, con_id, pxa25x_osc3_parents, mult_hp, \ + div_hp, bit, NULL, 0) + +#define PXA25X_CKEN_1RATE(dev_id, con_id, bit, parents, delay) \ + PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \ + &CKEN, CKEN_ ## bit, 0) +#define PXA25X_CKEN_1RATE_AO(dev_id, con_id, bit, parents, delay) \ + PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \ + &CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED) + +static struct desc_clk_cken pxa25x_clocks[] __initdata = { + PXA25X_PBUS95_CKEN("pxa2xx-mci.0", NULL, MMC, 1, 5, 0), + PXA25X_PBUS95_CKEN("pxa2xx-i2c.0", NULL, I2C, 1, 3, 0), + PXA25X_PBUS95_CKEN("pxa2xx-ir", "FICPCLK", FICP, 1, 2, 0), + PXA25X_PBUS95_CKEN("pxa25x-udc", NULL, USB, 1, 2, 5), + PXA25X_PBUS147_CKEN("pxa2xx-uart.0", NULL, FFUART, 1, 10, 1), + PXA25X_PBUS147_CKEN("pxa2xx-uart.1", NULL, BTUART, 1, 10, 1), + PXA25X_PBUS147_CKEN("pxa2xx-uart.2", NULL, STUART, 1, 10, 1), + PXA25X_PBUS147_CKEN("pxa2xx-uart.3", NULL, HWUART, 1, 10, 1), + PXA25X_PBUS147_CKEN("pxa2xx-i2s", NULL, I2S, 1, 10, 0), + PXA25X_PBUS147_CKEN(NULL, "AC97CLK", AC97, 1, 12, 0), + PXA25X_OSC3_CKEN("pxa25x-ssp.0", NULL, SSP, 1, 1, 0), + PXA25X_OSC3_CKEN("pxa25x-nssp.1", NULL, NSSP, 1, 1, 0), + PXA25X_OSC3_CKEN("pxa25x-nssp.2", NULL, ASSP, 1, 1, 0), + PXA25X_OSC3_CKEN("pxa25x-pwm.0", NULL, PWM0, 1, 1, 0), + PXA25X_OSC3_CKEN("pxa25x-pwm.1", NULL, PWM1, 1, 1, 0), + + PXA25X_CKEN_1RATE("pxa2xx-fb", NULL, LCD, clk_pxa25x_memory_parents, 0), + PXA25X_CKEN_1RATE_AO("pxa2xx-pcmcia", NULL, MEMC, + clk_pxa25x_memory_parents, 0), +}; + +static u8 clk_pxa25x_core_get_parent(struct clk_hw *hw) +{ + unsigned long clkcfg; + unsigned int t; + + asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg)); + t = clkcfg & (1 << 0); + if (t) + return PXA_CORE_TURBO; + return PXA_CORE_RUN; +} + +static unsigned long clk_pxa25x_core_get_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return parent_rate; +} +PARENTS(clk_pxa25x_core) = { "run", "cpll" }; +MUX_RO_RATE_RO_OPS(clk_pxa25x_core, "core"); + +static unsigned long clk_pxa25x_run_get_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + unsigned long cccr = CCCR; + unsigned int n2 = N2_clk_mult[(cccr >> 7) & 0x07]; + + return (parent_rate / n2) * 2; +} +PARENTS(clk_pxa25x_run) = { "cpll" }; +RATE_RO_OPS(clk_pxa25x_run, "run"); + +static unsigned long clk_pxa25x_cpll_get_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + unsigned long clkcfg, cccr = CCCR; + unsigned int l, m, n2, t; + + asm("mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg)); + t = clkcfg & (1 << 0); + l = L_clk_mult[(cccr >> 0) & 0x1f]; + m = M_clk_mult[(cccr >> 5) & 0x03]; + n2 = N2_clk_mult[(cccr >> 7) & 0x07]; + + if (t) + return m * l * n2 * parent_rate / 2; + return m * l * parent_rate; +} +PARENTS(clk_pxa25x_cpll) = { "osc_3_6864mhz" }; +RATE_RO_OPS(clk_pxa25x_cpll, "cpll"); + +static void __init pxa25x_register_core(void) +{ + clk_register_clk_pxa25x_cpll(); + clk_register_clk_pxa25x_run(); + clkdev_pxa_register(CLK_CORE, "core", NULL, + clk_register_clk_pxa25x_core()); +} + +static void __init pxa25x_register_plls(void) +{ + clk_register_fixed_rate(NULL, "osc_3_6864mhz", NULL, + CLK_GET_RATE_NOCACHE | CLK_IS_ROOT, + 3686400); + clk_register_fixed_rate(NULL, "osc_32_768khz", NULL, + CLK_GET_RATE_NOCACHE | CLK_IS_ROOT, + 32768); + clk_register_fixed_rate(NULL, "clk_dummy", NULL, CLK_IS_ROOT, 0); + clk_register_fixed_factor(NULL, "ppll_95_85mhz", "osc_3_6864mhz", + 0, 26, 1); + clk_register_fixed_factor(NULL, "ppll_147_46mhz", "osc_3_6864mhz", + 0, 40, 1); +} + +static void __init pxa25x_base_clocks_init(void) +{ + pxa25x_register_plls(); + pxa25x_register_core(); + clk_register_clk_pxa25x_memory(); +} + +#define DUMMY_CLK(_con_id, _dev_id, _parent) \ + { .con_id = _con_id, .dev_id = _dev_id, .parent = _parent } +struct dummy_clk { + const char *con_id; + const char *dev_id; + const char *parent; +}; +static struct dummy_clk dummy_clks[] __initdata = { + DUMMY_CLK(NULL, "pxa25x-gpio", "osc_32_768khz"), + DUMMY_CLK(NULL, "pxa26x-gpio", "osc_32_768khz"), + DUMMY_CLK("GPIO11_CLK", NULL, "osc_3_6864mhz"), + DUMMY_CLK("GPIO12_CLK", NULL, "osc_32_768khz"), + DUMMY_CLK(NULL, "sa1100-rtc", "osc_32_768khz"), + DUMMY_CLK("OSTIMER0", NULL, "osc_32_768khz"), + DUMMY_CLK("UARTCLK", "pxa2xx-ir", "STUART"), +}; + +static void __init pxa25x_dummy_clocks_init(void) +{ + struct clk *clk; + struct dummy_clk *d; + const char *name; + int i; + + /* + * All pinctrl logic has been wiped out of the clock driver, especially + * for gpio11 and gpio12 outputs. Machine code should ensure proper pin + * control (ie. pxa2xx_mfp_config() invocation). + */ + for (i = 0; i < ARRAY_SIZE(dummy_clks); i++) { + d = &dummy_clks[i]; + name = d->dev_id ? d->dev_id : d->con_id; + clk = clk_register_fixed_factor(NULL, name, d->parent, 0, 1, 1); + clk_register_clkdev(clk, d->con_id, d->dev_id); + } +} + +int __init pxa25x_clocks_init(void) +{ + pxa25x_base_clocks_init(); + pxa25x_dummy_clocks_init(); + return clk_pxa_cken_init(pxa25x_clocks, ARRAY_SIZE(pxa25x_clocks)); +} + +static void __init pxa25x_dt_clocks_init(struct device_node *np) +{ + pxa25x_clocks_init(); + clk_pxa_dt_common_init(np); +} +CLK_OF_DECLARE(pxa25x_clks, "marvell,pxa250-core-clocks", + pxa25x_dt_clocks_init); -- cgit v1.2.2 From 14dd5b01ae86760142157a5259b7f798eb840697 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Tue, 7 Oct 2014 01:07:58 +0200 Subject: clk: pxa: declare init function and data __init As the clock descriptions are constant and only usefull at init time, mark them as such by : - spliting clock description (desc) and clock private data (dynamic) - mark __initdata clock descriptions This makes all the register and descriptions of the clocks to go after kernel init phase. Signed-off-by: Robert Jarzmik Signed-off-by: Michael Turquette --- drivers/clk/pxa/clk-pxa.c | 42 +++++++++++++++++++++++++++--------------- drivers/clk/pxa/clk-pxa.h | 8 ++++---- drivers/clk/pxa/clk-pxa27x.c | 2 +- 3 files changed, 32 insertions(+), 20 deletions(-) diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c index ef3c05389c0a..994fd6fc266f 100644 --- a/drivers/clk/pxa/clk-pxa.c +++ b/drivers/clk/pxa/clk-pxa.c @@ -26,12 +26,20 @@ static struct clk_onecell_data onecell_data = { .clk_num = CLK_MAX, }; -#define to_pxa_clk(_hw) container_of(_hw, struct pxa_clk_cken, hw) +struct pxa_clk { + struct clk_hw hw; + struct clk_fixed_factor lp; + struct clk_fixed_factor hp; + struct clk_gate gate; + bool (*is_in_low_power)(void); +}; + +#define to_pxa_clk(_hw) container_of(_hw, struct pxa_clk, hw) static unsigned long cken_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { - struct pxa_clk_cken *pclk = to_pxa_clk(hw); + struct pxa_clk *pclk = to_pxa_clk(hw); struct clk_fixed_factor *fix; if (!pclk->is_in_low_power || pclk->is_in_low_power()) @@ -48,7 +56,7 @@ static struct clk_ops cken_rate_ops = { static u8 cken_get_parent(struct clk_hw *hw) { - struct pxa_clk_cken *pclk = to_pxa_clk(hw); + struct pxa_clk *pclk = to_pxa_clk(hw); if (!pclk->is_in_low_power) return 0; @@ -69,23 +77,27 @@ void __init clkdev_pxa_register(int ckid, const char *con_id, clk_register_clkdev(clk, con_id, dev_id); } -int __init clk_pxa_cken_init(struct pxa_clk_cken *clks, int nb_clks) +int __init clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks) { int i; - struct pxa_clk_cken *pclk; + struct pxa_clk *pxa_clk; struct clk *clk; for (i = 0; i < nb_clks; i++) { - pclk = clks + i; - pclk->gate.lock = &lock; - clk = clk_register_composite(NULL, pclk->name, - pclk->parent_names, 2, - &pclk->hw, &cken_mux_ops, - &pclk->hw, &cken_rate_ops, - &pclk->gate.hw, &clk_gate_ops, - pclk->flags); - clkdev_pxa_register(pclk->ckid, pclk->con_id, pclk->dev_id, - clk); + pxa_clk = kzalloc(sizeof(*pxa_clk), GFP_KERNEL); + pxa_clk->is_in_low_power = clks[i].is_in_low_power; + pxa_clk->lp = clks[i].lp; + pxa_clk->hp = clks[i].hp; + pxa_clk->gate = clks[i].gate; + pxa_clk->gate.lock = &lock; + clk = clk_register_composite(NULL, clks[i].name, + clks[i].parent_names, 2, + &pxa_clk->hw, &cken_mux_ops, + &pxa_clk->hw, &cken_rate_ops, + &pxa_clk->gate.hw, &clk_gate_ops, + clks[i].flags); + clkdev_pxa_register(clks[i].ckid, clks[i].con_id, + clks[i].dev_id, clk); } return 0; } diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h index 5fe219d06b49..7b8d48e8e17e 100644 --- a/drivers/clk/pxa/clk-pxa.h +++ b/drivers/clk/pxa/clk-pxa.h @@ -25,7 +25,7 @@ static struct clk_ops name ## _rate_ops = { \ .recalc_rate = name ## _get_rate, \ }; \ - static struct clk *clk_register_ ## name(void) \ + static struct clk * __init clk_register_ ## name(void) \ { \ return clk_register_composite(NULL, clk_name, \ name ## _parents, \ @@ -40,7 +40,7 @@ static struct clk_ops name ## _rate_ops = { \ .recalc_rate = name ## _get_rate, \ }; \ - static struct clk *clk_register_ ## name(void) \ + static struct clk * __init clk_register_ ## name(void) \ { \ return clk_register_composite(NULL, clk_name, \ name ## _parents, \ @@ -66,7 +66,7 @@ * | Clock | --- | / div_hp | * +------------+ +-----------+ */ -struct pxa_clk_cken { +struct desc_clk_cken { struct clk_hw hw; int ckid; const char *name; @@ -102,6 +102,6 @@ static int dummy_clk_set_parent(struct clk_hw *hw, u8 index) extern void clkdev_pxa_register(int ckid, const char *con_id, const char *dev_id, struct clk *clk); -extern int clk_pxa_cken_init(struct pxa_clk_cken *clks, int nb_clks); +extern int clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks); #endif diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c index b345cc791e5d..24c1d2454c75 100644 --- a/drivers/clk/pxa/clk-pxa27x.c +++ b/drivers/clk/pxa/clk-pxa27x.c @@ -111,7 +111,7 @@ PARENTS(pxa27x_membus) = { "lcd_base", "lcd_base" }; PXA_CKEN_1RATE(dev_id, con_id, bit, parents, \ &CKEN, CKEN_ ## bit, CLK_IGNORE_UNUSED) -static struct pxa_clk_cken pxa27x_clocks[] = { +static struct desc_clk_cken pxa27x_clocks[] __initdata = { PXA27X_PBUS_CKEN("pxa2xx-uart.0", NULL, FFUART, 2, 42, 1), PXA27X_PBUS_CKEN("pxa2xx-uart.1", NULL, BTUART, 2, 42, 1), PXA27X_PBUS_CKEN("pxa2xx-uart.2", NULL, STUART, 2, 42, 1), -- cgit v1.2.2 From 6f8a444aa6270e8d1aa4223ed856189108e1d401 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Tue, 7 Oct 2014 01:07:59 +0200 Subject: clk: pxa: keep clocks initialization separated per variant Have each pxa variant (pxa25x, pxa27x, pxa3xx) have its own device-tree clock initializing function, to be able to register its own specific core clocks. Apply that change specifically to pxa27x. Signed-off-by: Robert Jarzmik Signed-off-by: Michael Turquette --- drivers/clk/pxa/clk-pxa.c | 3 +-- drivers/clk/pxa/clk-pxa.h | 1 + drivers/clk/pxa/clk-pxa27x.c | 7 +++++++ 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/clk/pxa/clk-pxa.c b/drivers/clk/pxa/clk-pxa.c index 994fd6fc266f..4e834753ab09 100644 --- a/drivers/clk/pxa/clk-pxa.c +++ b/drivers/clk/pxa/clk-pxa.c @@ -102,8 +102,7 @@ int __init clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks) return 0; } -static void __init pxa_dt_clocks_init(struct device_node *np) +void __init clk_pxa_dt_common_init(struct device_node *np) { of_clk_add_provider(np, of_clk_src_onecell_get, &onecell_data); } -CLK_OF_DECLARE(pxa_clks, "marvell,pxa-clocks", pxa_dt_clocks_init); diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h index 7b8d48e8e17e..323965430111 100644 --- a/drivers/clk/pxa/clk-pxa.h +++ b/drivers/clk/pxa/clk-pxa.h @@ -103,5 +103,6 @@ static int dummy_clk_set_parent(struct clk_hw *hw, u8 index) extern void clkdev_pxa_register(int ckid, const char *con_id, const char *dev_id, struct clk *clk); extern int clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks); +void clk_pxa_dt_common_init(struct device_node *np); #endif diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c index 24c1d2454c75..bb8dfbc747ba 100644 --- a/drivers/clk/pxa/clk-pxa27x.c +++ b/drivers/clk/pxa/clk-pxa27x.c @@ -368,3 +368,10 @@ static int __init pxa27x_clocks_init(void) return clk_pxa_cken_init(pxa27x_clocks, ARRAY_SIZE(pxa27x_clocks)); } postcore_initcall(pxa27x_clocks_init); + +static void __init pxa27x_dt_clocks_init(struct device_node *np) +{ + pxa27x_clocks_init(); + clk_pxa_dt_common_init(np); +} +CLK_OF_DECLARE(pxa_clks, "marvell,pxa270-clocks", pxa27x_dt_clocks_init); -- cgit v1.2.2 From f0c71718c2968a744f834b26423b9fb5e7d41a34 Mon Sep 17 00:00:00 2001 From: Julien CHAUVEAU Date: Tue, 18 Nov 2014 12:10:43 +0100 Subject: clk: rockchip: fix parent clock for rk3188 hclk_lcdc1 The parent clock for hclk_lcdc1 was set to aclk_cpu instead of hclk_cpu. Signed-off-by: Julien CHAUVEAU Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3188.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index f88eb7dacd97..e6cd4838cde5 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -410,7 +410,7 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { /* hclk_ahb2apb is part of a clk branch */ GATE(0, "hclk_vio_bus", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 12, GFLAGS), GATE(HCLK_LCDC0, "hclk_lcdc0", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 1, GFLAGS), - GATE(HCLK_LCDC1, "hclk_lcdc1", "aclk_cpu", 0, RK2928_CLKGATE_CON(6), 2, GFLAGS), + GATE(HCLK_LCDC1, "hclk_lcdc1", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 2, GFLAGS), GATE(HCLK_CIF0, "hclk_cif0", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 4, GFLAGS), GATE(HCLK_IPP, "hclk_ipp", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 9, GFLAGS), GATE(HCLK_RGA, "hclk_rga", "hclk_cpu", 0, RK2928_CLKGATE_CON(6), 10, GFLAGS), -- cgit v1.2.2 From 40ba3f0ff261a14107f3f52c67602fff8b88d980 Mon Sep 17 00:00:00 2001 From: Zhen Lei Date: Fri, 14 Nov 2014 10:10:40 +0800 Subject: clk: delete a local variable's repeated assignment It's the same to the next statement, "ret = clk->parent". I think compiler will optimize it, it's just not looking well. Signed-off-by: Zhen Lei Signed-off-by: Michael Turquette --- drivers/clk/clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 4896ae9e23da..5307225684eb 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1614,7 +1614,7 @@ static struct clk *__clk_init_parent(struct clk *clk) if (clk->num_parents == 1) { if (IS_ERR_OR_NULL(clk->parent)) - ret = clk->parent = __clk_lookup(clk->parent_names[0]); + clk->parent = __clk_lookup(clk->parent_names[0]); ret = clk->parent; goto out; } -- cgit v1.2.2 From 29a77b8a04e794c6c34d45ea10a300b117a68e08 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 10 Nov 2014 19:49:34 +0100 Subject: clk: shmobile: Deprecate renesas,clock-indices Commit 8e33f91a0b84ae19 ("clk: shmobile: clk-mstp: change to using clock-indices") forgot to replace all occurrences of "renesas,clock-indices" in the driver-specific binding documentation. Signed-off-by: Geert Uytterhoeven Acked-by: Simon Horman Acked-by: Kuninori Morimoto Acked-by: Laurent Pinchart Signed-off-by: Michael Turquette --- .../devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt index a5f52238c80d..2e18676bd4b5 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt @@ -26,11 +26,11 @@ Required Properties: must appear in the same order as the output clocks. - #clock-cells: Must be 1 - clock-output-names: The name of the clocks as free-form strings - - renesas,clock-indices: Indices of the gate clocks into the group (0 to 31) + - clock-indices: Indices of the gate clocks into the group (0 to 31) -The clocks, clock-output-names and renesas,clock-indices properties contain one -entry per gate clock. The MSTP groups are sparsely populated. Unimplemented -gate clocks must not be declared. +The clocks, clock-output-names and clock-indices properties contain one entry +per gate clock. The MSTP groups are sparsely populated. Unimplemented gate +clocks must not be declared. Example -- cgit v1.2.2 From 6793b3cd5da817c4be218bd8632f07cf4d2b0d26 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 19 Nov 2014 14:48:59 +0100 Subject: clk_mux: Fix set_parent doing the wrong thing when INDEX_BIT && index >= 3 If CLK_MUX_INDEX_BIT is set, then each bit turns on / off a single parent, so theoretically multiple parents could be enabled at the same time, but in practice only one bit should ever be 1. So to select parent 0, set the register (*) to 0x01, to select parent 1 set it 0x02, parent 2, 0x04, parent 3, 0x08, etc. But the current code does: if (mux->flags & CLK_MUX_INDEX_BIT) index = (1 << ffs(index)); Which means that: For an input index of 0, ffs returns 0, so we set the register to 0x01, ok. For an input index of 1, ffs returns 1, so we set the register to 0x02, ok. For an input index of 2, ffs returns 2, so we set the register to 0x04, ok. For an input index of 3, ffs returns 1, so we set the register to 0x02, not good! The code should simply be: if (mux->flags & CLK_MUX_INDEX_BIT) index = 1 << index; Which always does the right thing, this commit fixes this. Signed-off-by: Hans de Goede Signed-off-by: Michael Turquette --- drivers/clk/clk-mux.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c index 4f96ff3ba728..6e1ecf94bf58 100644 --- a/drivers/clk/clk-mux.c +++ b/drivers/clk/clk-mux.c @@ -77,7 +77,7 @@ static int clk_mux_set_parent(struct clk_hw *hw, u8 index) else { if (mux->flags & CLK_MUX_INDEX_BIT) - index = (1 << ffs(index)); + index = 1 << index; if (mux->flags & CLK_MUX_INDEX_ONE) index++; -- cgit v1.2.2 From 7f615dd43ced8dc5424ad3fa95edd6b7fbbbc27c Mon Sep 17 00:00:00 2001 From: Bintian Wang Date: Mon, 10 Nov 2014 20:58:31 +0800 Subject: clk: hi3620: Move const initdata into correct code section Use __initconst instead of __initdata for constant init data. Signed-off-by: Bintian Wang Acked-by: Haojian Zhuang Signed-off-by: Michael Turquette --- drivers/clk/hisilicon/clk-hi3620.c | 70 +++++++++++++++++++------------------- 1 file changed, 35 insertions(+), 35 deletions(-) diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 339945d2503b..640ea3327c3e 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -38,44 +38,44 @@ #include "clk.h" /* clock parent list */ -static const char *timer0_mux_p[] __initdata = { "osc32k", "timerclk01", }; -static const char *timer1_mux_p[] __initdata = { "osc32k", "timerclk01", }; -static const char *timer2_mux_p[] __initdata = { "osc32k", "timerclk23", }; -static const char *timer3_mux_p[] __initdata = { "osc32k", "timerclk23", }; -static const char *timer4_mux_p[] __initdata = { "osc32k", "timerclk45", }; -static const char *timer5_mux_p[] __initdata = { "osc32k", "timerclk45", }; -static const char *timer6_mux_p[] __initdata = { "osc32k", "timerclk67", }; -static const char *timer7_mux_p[] __initdata = { "osc32k", "timerclk67", }; -static const char *timer8_mux_p[] __initdata = { "osc32k", "timerclk89", }; -static const char *timer9_mux_p[] __initdata = { "osc32k", "timerclk89", }; -static const char *uart0_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart1_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart2_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart3_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *uart4_mux_p[] __initdata = { "osc26m", "pclk", }; -static const char *spi0_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; -static const char *spi1_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; -static const char *spi2_mux_p[] __initdata = { "osc26m", "rclk_cfgaxi", }; +static const char *timer0_mux_p[] __initconst = { "osc32k", "timerclk01", }; +static const char *timer1_mux_p[] __initconst = { "osc32k", "timerclk01", }; +static const char *timer2_mux_p[] __initconst = { "osc32k", "timerclk23", }; +static const char *timer3_mux_p[] __initconst = { "osc32k", "timerclk23", }; +static const char *timer4_mux_p[] __initconst = { "osc32k", "timerclk45", }; +static const char *timer5_mux_p[] __initconst = { "osc32k", "timerclk45", }; +static const char *timer6_mux_p[] __initconst = { "osc32k", "timerclk67", }; +static const char *timer7_mux_p[] __initconst = { "osc32k", "timerclk67", }; +static const char *timer8_mux_p[] __initconst = { "osc32k", "timerclk89", }; +static const char *timer9_mux_p[] __initconst = { "osc32k", "timerclk89", }; +static const char *uart0_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *uart1_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *uart2_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *uart3_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *uart4_mux_p[] __initconst = { "osc26m", "pclk", }; +static const char *spi0_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; +static const char *spi1_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; +static const char *spi2_mux_p[] __initconst = { "osc26m", "rclk_cfgaxi", }; /* share axi parent */ -static const char *saxi_mux_p[] __initdata = { "armpll3", "armpll2", }; -static const char *pwm0_mux_p[] __initdata = { "osc32k", "osc26m", }; -static const char *pwm1_mux_p[] __initdata = { "osc32k", "osc26m", }; -static const char *sd_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc1_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc1_mux2_p[] __initdata = { "osc26m", "mmc1_div", }; -static const char *g2d_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *venc_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *vdec_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *vpp_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *edc0_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *ldi0_mux_p[] __initdata = { "armpll2", "armpll4", +static const char *saxi_mux_p[] __initconst = { "armpll3", "armpll2", }; +static const char *pwm0_mux_p[] __initconst = { "osc32k", "osc26m", }; +static const char *pwm1_mux_p[] __initconst = { "osc32k", "osc26m", }; +static const char *sd_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *mmc1_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *mmc1_mux2_p[] __initconst = { "osc26m", "mmc1_div", }; +static const char *g2d_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *venc_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *vdec_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *vpp_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *edc0_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *ldi0_mux_p[] __initconst = { "armpll2", "armpll4", "armpll3", "armpll5", }; -static const char *edc1_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *ldi1_mux_p[] __initdata = { "armpll2", "armpll4", +static const char *edc1_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *ldi1_mux_p[] __initconst = { "armpll2", "armpll4", "armpll3", "armpll5", }; -static const char *rclk_hsic_p[] __initdata = { "armpll3", "armpll2", }; -static const char *mmc2_mux_p[] __initdata = { "armpll2", "armpll3", }; -static const char *mmc3_mux_p[] __initdata = { "armpll2", "armpll3", }; +static const char *rclk_hsic_p[] __initconst = { "armpll3", "armpll2", }; +static const char *mmc2_mux_p[] __initconst = { "armpll2", "armpll3", }; +static const char *mmc3_mux_p[] __initconst = { "armpll2", "armpll3", }; /* fixed rate clocks */ -- cgit v1.2.2 From b7bdb7f45e7b848dc2eb50c2d5c5106af68562c4 Mon Sep 17 00:00:00 2001 From: Julien CHAUVEAU Date: Fri, 21 Nov 2014 10:27:41 +0100 Subject: clk: rockchip: fix clock gate for rk3188 spdif_pre In rk3188 clock branches, spdif_pre gate was set to RK2928_CLKGATE_CON(13) bit 13. This appears to be a copy-paste error because such a register does not exist. We correct it to RK2928_CLKGATE_CON(0) and find out that the rk3188 spdif clock is the same as the rk3066 spdif clock, so we move it to the common clock branches. Signed-off-by: Julien CHAUVEAU Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3188.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index e6cd4838cde5..c24986970815 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -330,6 +330,15 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { RK2928_CLKSEL_CON(24), 8, 8, DFLAGS, RK2928_CLKGATE_CON(2), 8, GFLAGS), + COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0, + RK2928_CLKSEL_CON(5), 0, 7, DFLAGS, + RK2928_CLKGATE_CON(0), 13, GFLAGS), + COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0, + RK2928_CLKSEL_CON(9), 0, + RK2928_CLKGATE_CON(0), 14, GFLAGS), + MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0, + RK2928_CLKSEL_CON(5), 8, 2, MFLAGS), + /* * Clock-Architecture Diagram 4 */ @@ -577,14 +586,6 @@ static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = { RK2928_CLKGATE_CON(0), 12, GFLAGS), MUX(SCLK_I2S2, "sclk_i2s2", mux_sclk_i2s2_p, 0, RK2928_CLKSEL_CON(4), 8, 2, MFLAGS), - COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0, - RK2928_CLKSEL_CON(5), 0, 7, DFLAGS, - RK2928_CLKGATE_CON(0), 13, GFLAGS), - COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0, - RK2928_CLKSEL_CON(9), 0, - RK2928_CLKGATE_CON(0), 14, GFLAGS), - MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0, - RK2928_CLKSEL_CON(5), 8, 2, MFLAGS), GATE(HCLK_I2S1, "hclk_i2s1", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 3, GFLAGS), GATE(HCLK_I2S2, "hclk_i2s2", "hclk_cpu", 0, RK2928_CLKGATE_CON(7), 4, GFLAGS), @@ -675,14 +676,6 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = { RK2928_CLKGATE_CON(0), 10, GFLAGS), MUX(SCLK_I2S0, "sclk_i2s0", mux_sclk_i2s0_p, 0, RK2928_CLKSEL_CON(3), 8, 2, MFLAGS), - COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0, - RK2928_CLKSEL_CON(5), 0, 7, DFLAGS, - RK2928_CLKGATE_CON(13), 13, GFLAGS), - COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0, - RK2928_CLKSEL_CON(9), 0, - RK2928_CLKGATE_CON(0), 14, GFLAGS), - MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0, - RK2928_CLKSEL_CON(5), 8, 2, MFLAGS), GATE(0, "hclk_imem0", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 14, GFLAGS), GATE(0, "hclk_imem1", "hclk_cpu", 0, RK2928_CLKGATE_CON(4), 15, GFLAGS), -- cgit v1.2.2 From 12c0a0e81e2f9c03404a3e095517c022991aad43 Mon Sep 17 00:00:00 2001 From: Julien CHAUVEAU Date: Fri, 21 Nov 2014 11:08:47 +0100 Subject: clk: rockchip: fix rk3188 USB HSIC PHY clock divider The USB HSIC PHY clock divider is set in the register RK2928_CLKSEL_CON(11). Signed-off-by: Julien CHAUVEAU Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3188.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index c24986970815..22dccc6cd664 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -664,7 +664,7 @@ static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = { RK2928_CLKSEL_CON(30), 0, 2, DFLAGS, RK2928_CLKGATE_CON(3), 6, GFLAGS), DIV(0, "sclk_hsicphy_12m", "sclk_hsicphy_480m", 0, - RK2928_CLKGATE_CON(11), 8, 6, DFLAGS), + RK2928_CLKSEL_CON(11), 8, 6, DFLAGS), MUX(0, "i2s_src", mux_pll_src_gpll_cpll_p, 0, RK2928_CLKSEL_CON(2), 15, 1, MFLAGS), -- cgit v1.2.2 From acbcc0f03b15585387f9ca69c2a976b02cb69023 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Emilio=20L=C3=B3pez?= Date: Thu, 6 Nov 2014 11:40:30 +0800 Subject: ARM: dts: sunxi: unify APB1 clock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With the new factors infrastructure in place, we can unify apb1 and apb1_mux as a single clock now. Signed-off-by: Emilio López [wens@csie.org: Change apb1 node label to "apb1"; reword commit title] Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- arch/arm/boot/dts/sun4i-a10.dtsi | 12 ++---------- arch/arm/boot/dts/sun5i-a10s.dtsi | 12 ++---------- arch/arm/boot/dts/sun5i-a13.dtsi | 12 ++---------- arch/arm/boot/dts/sun7i-a20.dtsi | 12 ++---------- 4 files changed, 8 insertions(+), 40 deletions(-) diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi index 380f914b226d..5e2ec2dd8333 100644 --- a/arch/arm/boot/dts/sun4i-a10.dtsi +++ b/arch/arm/boot/dts/sun4i-a10.dtsi @@ -174,19 +174,11 @@ "apb0_ir1", "apb0_keypad"; }; - apb1_mux: apb1_mux@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; - reg = <0x01c20058 0x4>; - clocks = <&osc24M>, <&pll6 1>, <&osc32k>; - clock-output-names = "apb1_mux"; - }; - - apb1: apb1@01c20058 { + apb1: clk@01c20058 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; - clocks = <&apb1_mux>; + clocks = <&osc24M>, <&pll6 1>, <&osc32k>; clock-output-names = "apb1"; }; diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi index 531272c0e526..d2a85144d2d9 100644 --- a/arch/arm/boot/dts/sun5i-a10s.dtsi +++ b/arch/arm/boot/dts/sun5i-a10s.dtsi @@ -162,19 +162,11 @@ "apb0_ir", "apb0_keypad"; }; - apb1_mux: apb1_mux@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; - reg = <0x01c20058 0x4>; - clocks = <&osc24M>, <&pll6 1>, <&osc32k>; - clock-output-names = "apb1_mux"; - }; - - apb1: apb1@01c20058 { + apb1: clk@01c20058 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; - clocks = <&apb1_mux>; + clocks = <&osc24M>, <&pll6 1>, <&osc32k>; clock-output-names = "apb1"; }; diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi index b131068f4f35..c35217ea1f64 100644 --- a/arch/arm/boot/dts/sun5i-a13.dtsi +++ b/arch/arm/boot/dts/sun5i-a13.dtsi @@ -161,19 +161,11 @@ clock-output-names = "apb0_codec", "apb0_pio", "apb0_ir"; }; - apb1_mux: apb1_mux@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; - reg = <0x01c20058 0x4>; - clocks = <&osc24M>, <&pll6 1>, <&osc32k>; - clock-output-names = "apb1_mux"; - }; - - apb1: apb1@01c20058 { + apb1: clk@01c20058 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; - clocks = <&apb1_mux>; + clocks = <&osc24M>, <&pll6 1>, <&osc32k>; clock-output-names = "apb1"; }; diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index 82097c905c48..6d996c9e282a 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -222,19 +222,11 @@ "apb0_iis2", "apb0_keypad"; }; - apb1_mux: apb1_mux@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; - reg = <0x01c20058 0x4>; - clocks = <&osc24M>, <&pll6 1>, <&osc32k>; - clock-output-names = "apb1_mux"; - }; - - apb1: apb1@01c20058 { + apb1: clk@01c20058 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; - clocks = <&apb1_mux>; + clocks = <&osc24M>, <&pll6 1>, <&osc32k>; clock-output-names = "apb1"; }; -- cgit v1.2.2 From 74c947ab33c9ada5a180315ed218a1f61b5ede0c Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Thu, 6 Nov 2014 11:40:31 +0800 Subject: ARM: dts: sunxi: Use sun4i-a10-apb1-clk for sun6i/sun8i apb2 clocks. The apb2 clocks are actually the same as apb1 clocks on the other sunxi platforms, hence compatible with "allwinner,sun4i-a10-apb1-clk". Update the dtsi to use the new unified apb1 clk. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- arch/arm/boot/dts/sun6i-a31.dtsi | 12 ++---------- arch/arm/boot/dts/sun8i-a23.dtsi | 12 ++---------- 2 files changed, 4 insertions(+), 20 deletions(-) diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi index 543f895d18d3..4083201e93c8 100644 --- a/arch/arm/boot/dts/sun6i-a31.dtsi +++ b/arch/arm/boot/dts/sun6i-a31.dtsi @@ -217,19 +217,11 @@ "apb1_daudio1"; }; - apb2_mux: apb2_mux@01c20058 { + apb2: clk@01c20058 { #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; + compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>; - clock-output-names = "apb2_mux"; - }; - - apb2: apb2@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun6i-a31-apb2-div-clk"; - reg = <0x01c20058 0x4>; - clocks = <&apb2_mux>; clock-output-names = "apb2"; }; diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi index 6146ef15efbe..701960e9d033 100644 --- a/arch/arm/boot/dts/sun8i-a23.dtsi +++ b/arch/arm/boot/dts/sun8i-a23.dtsi @@ -189,19 +189,11 @@ "apb1_daudio0", "apb1_daudio1"; }; - apb2_mux: apb2_mux_clk@01c20058 { + apb2: clk@01c20058 { #clock-cells = <0>; - compatible = "allwinner,sun4i-a10-apb1-mux-clk"; + compatible = "allwinner,sun4i-a10-apb1-clk"; reg = <0x01c20058 0x4>; clocks = <&osc32k>, <&osc24M>, <&pll6>, <&pll6>; - clock-output-names = "apb2_mux"; - }; - - apb2: apb2_clk@01c20058 { - #clock-cells = <0>; - compatible = "allwinner,sun6i-a31-apb2-div-clk"; - reg = <0x01c20058 0x4>; - clocks = <&apb2_mux>; clock-output-names = "apb2"; }; -- cgit v1.2.2 From eaa2e9804e9cbd0b46f74e39ca6f92e4834547db Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Thu, 6 Nov 2014 11:40:32 +0800 Subject: clk: sunxi: Removed unused/incorrect sun6i-a31-apb2-clk driver This driver does not match the hardware, which is actually compatible to sun4i-a10-apb1-clk. Since we've switch to the correct one, drop this driver. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/clock/sunxi.txt | 1 - drivers/clk/sunxi/clk-sunxi.c | 7 ------- 2 files changed, 8 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index 6ddcf6e10eb8..d199f9153e04 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -52,7 +52,6 @@ Required properties: "allwinner,sun7i-a20-apb1-gates-clk" - for the APB1 gates on A20 "allwinner,sun8i-a23-apb1-gates-clk" - for the APB1 gates on A23 "allwinner,sun9i-a80-apb1-gates-clk" - for the APB1 gates on A80 - "allwinner,sun6i-a31-apb2-div-clk" - for the APB2 gates on A31 "allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31 "allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23 "allwinner,sun5i-a13-mbus-clk" - for the MBUS clock on A13 diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 4133e278212b..46d98e3b98ba 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -632,12 +632,6 @@ static const struct div_data sun4i_apb0_data __initconst = { .table = sun4i_apb0_table, }; -static const struct div_data sun6i_a31_apb2_div_data __initconst = { - .shift = 0, - .pow = 0, - .width = 4, -}; - static void __init sunxi_divider_clk_setup(struct device_node *node, struct div_data *data) { @@ -1093,7 +1087,6 @@ static const struct of_device_id clk_div_match[] __initconst = { {.compatible = "allwinner,sun8i-a23-axi-clk", .data = &sun8i_a23_axi_data,}, {.compatible = "allwinner,sun4i-a10-ahb-clk", .data = &sun4i_ahb_data,}, {.compatible = "allwinner,sun4i-a10-apb0-clk", .data = &sun4i_apb0_data,}, - {.compatible = "allwinner,sun6i-a31-apb2-div-clk", .data = &sun6i_a31_apb2_div_data,}, {} }; -- cgit v1.2.2 From 13d52f61065dcdbea13aae2f0aea6af43a3abf65 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Thu, 13 Nov 2014 02:08:30 +0800 Subject: clk: sunxi: Specify number of child clocks for divs clocks Currently sunxi_divs_clk_setup assumes the number of child clocks to be the same as the number of clock-output-names, and a maximum of SUNXI_DIVS_MAX_QTY child clocks. On sun6i, PLL6 only has 1 child clock, but the parent would be used as well, thereby also having it's own clock-output-names entry. This results in an extra bogus clock being registered. This patch adds an entry for the number of child clocks alongside the data structures for them. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- drivers/clk/sunxi/clk-sunxi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 46d98e3b98ba..d46949372762 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -906,6 +906,7 @@ static void __init sunxi_gates_clk_setup(struct device_node *node, struct divs_data { const struct factors_data *factors; /* data for the factor clock */ + int ndivs; /* number of children */ struct { u8 fixed; /* is it a fixed divisor? if not... */ struct clk_div_table *table; /* is it a table based divisor? */ @@ -925,6 +926,7 @@ static struct clk_div_table pll6_sata_tbl[] = { static const struct divs_data pll5_divs_data __initconst = { .factors = &sun4i_pll5_data, + .ndivs = 2, .div = { { .shift = 0, .pow = 0, }, /* M, DDR */ { .shift = 16, .pow = 1, }, /* P, other */ @@ -933,6 +935,7 @@ static const struct divs_data pll5_divs_data __initconst = { static const struct divs_data pll6_divs_data __initconst = { .factors = &sun4i_pll6_data, + .ndivs = 2, .div = { { .shift = 0, .table = pll6_sata_tbl, .gate = 14 }, /* M, SATA */ { .fixed = 2 }, /* P, other */ @@ -963,7 +966,7 @@ static void __init sunxi_divs_clk_setup(struct device_node *node, struct clk_fixed_factor *fix_factor; struct clk_divider *divider; void __iomem *reg; - int i = 0; + int ndivs = SUNXI_DIVS_MAX_QTY, i = 0; int flags, clkflags; /* Set up factor clock that we will be dividing */ @@ -986,7 +989,11 @@ static void __init sunxi_divs_clk_setup(struct device_node *node, * our RAM clock! */ clkflags = !strcmp("pll5", parent) ? 0 : CLK_SET_RATE_PARENT; - for (i = 0; i < SUNXI_DIVS_MAX_QTY; i++) { + /* if number of children known, use it */ + if (data->ndivs) + ndivs = data->ndivs; + + for (i = 0; i < ndivs; i++) { if (of_property_read_string_index(node, "clock-output-names", i, &clk_name) != 0) break; -- cgit v1.2.2 From 95e94c1fadcd1959857db45c2e11810a893badd0 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Thu, 13 Nov 2014 02:08:31 +0800 Subject: clk: sunxi: Implement A31 PLL6 as a divs clock for 2x output Some clock modules on the A31 use PLL6x2 as one of their inputs. This patch changes the PLL6 implementation for A31 to a divs clock, i.e. clock with multiple outputs that have different dividers. The first output will be the normal PLL6 output, and the second will be PLL6x2. This patch fixes the PLL6 N factor in the clock driver, and removes any /2 dividers in the PLL6 factors clock part. The N factor counts from 1 to 32, mapping to values 0 to 31, as shown in the A31 manual. Signed-off-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/clock/sunxi.txt | 19 +++++++++++++-- drivers/clk/sunxi/clk-sunxi.c | 28 +++++++++++++---------- 2 files changed, 33 insertions(+), 14 deletions(-) diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index d199f9153e04..67b2b99f2b33 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -71,8 +71,9 @@ Required properties for all clocks: multiplexed clocks, the list order must match the hardware programming order. - #clock-cells : from common clock binding; shall be set to 0 except for - "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk" and - "allwinner,sun4i-pll6-clk" where it shall be set to 1 + the following compatibles where it shall be set to 1: + "allwinner,*-gates-clk", "allwinner,sun4i-pll5-clk", + "allwinner,sun4i-pll6-clk", "allwinner,sun6i-a31-pll6-clk" - clock-output-names : shall be the corresponding names of the outputs. If the clock module only has one output, the name shall be the module name. @@ -87,6 +88,12 @@ Clock consumers should specify the desired clocks they use with a "clocks" phandle cell. Consumers that are using a gated clock should provide an additional ID in their clock property. This ID is the offset of the bit controlling this particular gate in the register. +For the other clocks with "#clock-cells" = 1, the additional ID shall +refer to the index of the output. + +For "allwinner,sun6i-a31-pll6-clk", there are 2 outputs. The first output +is the normal PLL6 output, or "pll6". The second output is rate doubled +PLL6, or "pll6x2". For example: @@ -114,6 +121,14 @@ pll5: clk@01c20020 { clock-output-names = "pll5_ddr", "pll5_other"; }; +pll6: clk@01c20028 { + #clock-cells = <1>; + compatible = "allwinner,sun6i-a31-pll6-clk"; + reg = <0x01c20028 0x4>; + clocks = <&osc24M>; + clock-output-names = "pll6", "pll6x2"; +}; + cpu: cpu@01c20054 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-cpu-clk"; diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index d46949372762..570202582dcf 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -245,9 +245,9 @@ static void sun4i_get_pll5_factors(u32 *freq, u32 parent_rate, } /** - * sun6i_a31_get_pll6_factors() - calculates n, k factors for A31 PLL6 - * PLL6 rate is calculated as follows - * rate = parent_rate * n * (k + 1) / 2 + * sun6i_a31_get_pll6_factors() - calculates n, k factors for A31 PLL6x2 + * PLL6x2 rate is calculated as follows + * rate = parent_rate * (n + 1) * (k + 1) * parent_rate is always 24Mhz */ @@ -256,13 +256,7 @@ static void sun6i_a31_get_pll6_factors(u32 *freq, u32 parent_rate, { u8 div; - /* - * We always have 24MHz / 2, so we can just say that our - * parent clock is 12MHz. - */ - parent_rate = parent_rate / 2; - - /* Normalize value to a parent_rate multiple (24M / 2) */ + /* Normalize value to a parent_rate multiple (24M) */ div = *freq / parent_rate; *freq = parent_rate * div; @@ -274,7 +268,7 @@ static void sun6i_a31_get_pll6_factors(u32 *freq, u32 parent_rate, if (*k > 3) *k = 3; - *n = DIV_ROUND_UP(div, (*k+1)); + *n = DIV_ROUND_UP(div, (*k+1)) - 1; } /** @@ -445,6 +439,7 @@ static struct clk_factors_config sun6i_a31_pll6_config = { .nwidth = 5, .kshift = 4, .kwidth = 2, + .n_start = 1, }; static struct clk_factors_config sun4i_apb1_config = { @@ -504,6 +499,7 @@ static const struct factors_data sun6i_a31_pll6_data __initconst = { .enable = 31, .table = &sun6i_a31_pll6_config, .getter = sun6i_a31_get_pll6_factors, + .name = "pll6x2", }; static const struct factors_data sun4i_apb1_data __initconst = { @@ -942,6 +938,14 @@ static const struct divs_data pll6_divs_data __initconst = { } }; +static const struct divs_data sun6i_a31_pll6_divs_data __initconst = { + .factors = &sun6i_a31_pll6_data, + .ndivs = 1, + .div = { + { .fixed = 2 }, /* normal output */ + } +}; + /** * sunxi_divs_clk_setup() - Setup function for leaf divisors on clocks * @@ -1082,7 +1086,6 @@ static const struct of_device_id clk_factors_match[] __initconst = { {.compatible = "allwinner,sun6i-a31-pll1-clk", .data = &sun6i_a31_pll1_data,}, {.compatible = "allwinner,sun8i-a23-pll1-clk", .data = &sun8i_a23_pll1_data,}, {.compatible = "allwinner,sun7i-a20-pll4-clk", .data = &sun7i_a20_pll4_data,}, - {.compatible = "allwinner,sun6i-a31-pll6-clk", .data = &sun6i_a31_pll6_data,}, {.compatible = "allwinner,sun4i-a10-apb1-clk", .data = &sun4i_apb1_data,}, {.compatible = "allwinner,sun7i-a20-out-clk", .data = &sun7i_a20_out_data,}, {} @@ -1101,6 +1104,7 @@ static const struct of_device_id clk_div_match[] __initconst = { static const struct of_device_id clk_divs_match[] __initconst = { {.compatible = "allwinner,sun4i-a10-pll5-clk", .data = &pll5_divs_data,}, {.compatible = "allwinner,sun4i-a10-pll6-clk", .data = &pll6_divs_data,}, + {.compatible = "allwinner,sun6i-a31-pll6-clk", .data = &sun6i_a31_pll6_divs_data,}, {} }; -- cgit v1.2.2 From c1ec51603053260b138fc98e2ed18a5a9bea4515 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 16 Nov 2014 13:56:57 +0100 Subject: clk: sunxi: gmac-tx-clk mux is not a CLK_MUX_INDEX_BIT mux A CLK_MUX_INDEX_BIT mux has one bit per parent, but the sun7i-a20-gmac-clk has 2 bits selecting between 3 possible parents using values of 0, 1, 2, which makes it a regular mux which should not have CLK_MUX_INDEX_BIT set in its flag. However we do not support parent 1 (an external clock), so use a table to select parent 0 or 2, which are the 2 parents we support. Note this has not been causing any issues sofar, because we start with a parent setting of parent 0, and only ever re-parent to parent 2 (for which we use an index of 1 as we skip parent 1) and with CLK_MUX_INDEX_BIT set we write a value of 2 for index 1. Tested on both a cubietruck (which uses rgmii mode) as well as a cs908 (an a31s board which uses mii mode). Signed-off-by: Hans de Goede Signed-off-by: Maxime Ripard --- drivers/clk/sunxi/clk-a20-gmac.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/clk/sunxi/clk-a20-gmac.c b/drivers/clk/sunxi/clk-a20-gmac.c index 5296fd6dd7b3..0dcf4f205fb8 100644 --- a/drivers/clk/sunxi/clk-a20-gmac.c +++ b/drivers/clk/sunxi/clk-a20-gmac.c @@ -53,6 +53,11 @@ static DEFINE_SPINLOCK(gmac_lock); #define SUN7I_A20_GMAC_MASK 0x3 #define SUN7I_A20_GMAC_PARENTS 2 +static u32 sun7i_a20_gmac_mux_table[SUN7I_A20_GMAC_PARENTS] = { + 0x00, /* Select mii_phy_tx_clk */ + 0x02, /* Select gmac_int_tx_clk */ +}; + static void __init sun7i_a20_gmac_clk_setup(struct device_node *node) { struct clk *clk; @@ -90,7 +95,7 @@ static void __init sun7i_a20_gmac_clk_setup(struct device_node *node) gate->lock = &gmac_lock; mux->reg = reg; mux->mask = SUN7I_A20_GMAC_MASK; - mux->flags = CLK_MUX_INDEX_BIT; + mux->table = sun7i_a20_gmac_mux_table; mux->lock = &gmac_lock; clk = clk_register_composite(NULL, clk_name, -- cgit v1.2.2 From 4f8a7c549f373f33c065c9cbb5a5f3f1a9d8f56c Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 20 Nov 2014 20:38:50 +0100 Subject: clk: rockchip: add ability to specify pll-specific flags This adds a flag parameter to plls that allows us to create special flags to tweak the behaviour of the plls if necessary. Signed-off-by: Heiko Stuebner Reviewed-by: Kever Yang Tested-by: Kever Yang --- drivers/clk/rockchip/clk-pll.c | 4 +++- drivers/clk/rockchip/clk-rk3188.c | 8 ++++---- drivers/clk/rockchip/clk-rk3288.c | 10 +++++----- drivers/clk/rockchip/clk.c | 3 ++- drivers/clk/rockchip/clk.h | 7 +++++-- 5 files changed, 19 insertions(+), 13 deletions(-) diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index a3e886a38480..feb9cad3e676 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -39,6 +39,7 @@ struct rockchip_clk_pll { int lock_offset; unsigned int lock_shift; enum rockchip_pll_type type; + u8 flags; const struct rockchip_pll_rate_table *rate_table; unsigned int rate_count; spinlock_t *lock; @@ -282,7 +283,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, void __iomem *base, int con_offset, int grf_lock_offset, int lock_shift, int mode_offset, int mode_shift, struct rockchip_pll_rate_table *rate_table, - spinlock_t *lock) + u8 clk_pll_flags, spinlock_t *lock) { const char *pll_parents[3]; struct clk_init_data init; @@ -345,6 +346,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, pll->reg_base = base + con_offset; pll->lock_offset = grf_lock_offset; pll->lock_shift = lock_shift; + pll->flags = clk_pll_flags; pll->lock = lock; pll_clk = clk_register(NULL, &pll->hw); diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index 22dccc6cd664..dc028b754c9e 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -212,13 +212,13 @@ PNAME(mux_sclk_macref_p) = { "mac_src", "ext_rmii" }; static struct rockchip_pll_clock rk3188_pll_clks[] __initdata = { [apll] = PLL(pll_rk3066, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0), - RK2928_MODE_CON, 0, 6, rk3188_pll_rates), + RK2928_MODE_CON, 0, 6, 0, rk3188_pll_rates), [dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4), - RK2928_MODE_CON, 4, 5, NULL), + RK2928_MODE_CON, 4, 5, 0, NULL), [cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK2928_PLL_CON(8), - RK2928_MODE_CON, 8, 7, rk3188_pll_rates), + RK2928_MODE_CON, 8, 7, 0, rk3188_pll_rates), [gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12), - RK2928_MODE_CON, 12, 8, rk3188_pll_rates), + RK2928_MODE_CON, 12, 8, 0, rk3188_pll_rates), }; #define MFLAGS CLK_MUX_HIWORD_MASK diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 174589c95e33..2d31a22c0273 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -202,15 +202,15 @@ PNAME(mux_hsicphy12m_p) = { "hsicphy12m_xin12m", "hsicphy12m_usbphy" }; static struct rockchip_pll_clock rk3288_pll_clks[] __initdata = { [apll] = PLL(pll_rk3066, PLL_APLL, "apll", mux_pll_p, 0, RK3288_PLL_CON(0), - RK3288_MODE_CON, 0, 6, rk3288_pll_rates), + RK3288_MODE_CON, 0, 6, 0, rk3288_pll_rates), [dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK3288_PLL_CON(4), - RK3288_MODE_CON, 4, 5, NULL), + RK3288_MODE_CON, 4, 5, 0, NULL), [cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK3288_PLL_CON(8), - RK3288_MODE_CON, 8, 7, rk3288_pll_rates), + RK3288_MODE_CON, 8, 7, 0, rk3288_pll_rates), [gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK3288_PLL_CON(12), - RK3288_MODE_CON, 12, 8, rk3288_pll_rates), + RK3288_MODE_CON, 12, 8, 0, rk3288_pll_rates), [npll] = PLL(pll_rk3066, PLL_NPLL, "npll", mux_pll_p, 0, RK3288_PLL_CON(16), - RK3288_MODE_CON, 14, 9, rk3288_pll_rates), + RK3288_MODE_CON, 14, 9, 0, rk3288_pll_rates), }; static struct clk_div_table div_hclk_cpu_t[] = { diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index dec6f8d6dc13..3b8f26e2cd1a 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -199,7 +199,8 @@ void __init rockchip_clk_register_plls(struct rockchip_pll_clock *list, list->parent_names, list->num_parents, reg_base, list->con_offset, grf_lock_offset, list->lock_shift, list->mode_offset, - list->mode_shift, list->rate_table, &clk_lock); + list->mode_shift, list->rate_table, + list->pll_flags, &clk_lock); if (IS_ERR(clk)) { pr_err("%s: failed to register clock %s\n", __func__, list->name); diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index 6baf6655b5c3..eefd39a3820b 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -90,6 +90,7 @@ struct rockchip_pll_rate_table { * @mode_shift: offset inside the mode-register for the mode of this pll. * @lock_shift: offset inside the lock register for the lock status. * @type: Type of PLL to be registered. + * @pll_flags: hardware-specific flags * @rate_table: Table of usable pll rates */ struct rockchip_pll_clock { @@ -103,11 +104,12 @@ struct rockchip_pll_clock { int mode_shift; int lock_shift; enum rockchip_pll_type type; + u8 pll_flags; struct rockchip_pll_rate_table *rate_table; }; #define PLL(_type, _id, _name, _pnames, _flags, _con, _mode, _mshift, \ - _lshift, _rtable) \ + _lshift, _pflags, _rtable) \ { \ .id = _id, \ .type = _type, \ @@ -119,6 +121,7 @@ struct rockchip_pll_clock { .mode_offset = _mode, \ .mode_shift = _mshift, \ .lock_shift = _lshift, \ + .pll_flags = _pflags, \ .rate_table = _rtable, \ } @@ -127,7 +130,7 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, void __iomem *base, int con_offset, int grf_lock_offset, int lock_shift, int reg_mode, int mode_shift, struct rockchip_pll_rate_table *rate_table, - spinlock_t *lock); + u8 clk_pll_flags, spinlock_t *lock); struct rockchip_cpuclk_clksel { int reg; -- cgit v1.2.2 From d0e7a0ca4b57483e424334c453818529148baafd Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 20 Nov 2014 20:38:51 +0100 Subject: clk: rockchip: setup pll_mux data earlier In some cases we might need to access the data of the pll mux before the actual mux gets registered - like in the following patch adding an init-callback. Therefore populate pll_mux before registering the core pll-clock. Signed-off-by: Heiko Stuebner Reviewed-by: Kever Yang Tested-by: Kever Yang --- drivers/clk/rockchip/clk-pll.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index feb9cad3e676..1bb68910a76b 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -349,6 +349,19 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, pll->flags = clk_pll_flags; pll->lock = lock; + /* create the mux on top of the real pll */ + pll->pll_mux_ops = &clk_mux_ops; + pll_mux = &pll->pll_mux; + pll_mux->reg = base + mode_offset; + pll_mux->shift = mode_shift; + pll_mux->mask = PLL_MODE_MASK; + pll_mux->flags = 0; + pll_mux->lock = lock; + pll_mux->hw.init = &init; + + if (pll_type == pll_rk3066) + pll_mux->flags |= CLK_MUX_HIWORD_MASK; + pll_clk = clk_register(NULL, &pll->hw); if (IS_ERR(pll_clk)) { pr_err("%s: failed to register pll clock %s : %ld\n", @@ -357,10 +370,6 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, goto err_pll; } - /* create the mux on top of the real pll */ - pll->pll_mux_ops = &clk_mux_ops; - pll_mux = &pll->pll_mux; - /* the actual muxing is xin24m, pll-output, xin32k */ pll_parents[0] = parent_names[0]; pll_parents[1] = pll_name; @@ -372,16 +381,6 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, init.parent_names = pll_parents; init.num_parents = ARRAY_SIZE(pll_parents); - pll_mux->reg = base + mode_offset; - pll_mux->shift = mode_shift; - pll_mux->mask = PLL_MODE_MASK; - pll_mux->flags = 0; - pll_mux->lock = lock; - pll_mux->hw.init = &init; - - if (pll_type == pll_rk3066) - pll_mux->flags |= CLK_MUX_HIWORD_MASK; - mux_clk = clk_register(NULL, &pll_mux->hw); if (IS_ERR(mux_clk)) goto err_mux; -- cgit v1.2.2 From 0bb66d3b6e78168f8f49c7a41060508707f04d1d Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 20 Nov 2014 20:38:52 +0100 Subject: clk: rockchip: add optional sync to pll rate parameters In some cases firmware brings up plls with different parameters than the ones noted in the rate table for the specific frequency. These firmware-selected parameters are worse than the tested ones in the pll rate tables but cannot be changed by a simple clk_set_rate call when the rate stays the same. Therefore add a ROCKCHIP_PLL_SYNC_RATE flag and implement an init callback that checks the runtime-parameters against the matching rate table entry and adjusts them to the table-ones if necessary. If no rate table is set or the current rate does not match any rate-table entry no changes are made. Being able to limit this adjustment to specific plls is necessary to not touch the ones supplying core components like the apll and dpll supplying the armcores and dram. Signed-off-by: Heiko Stuebner Reviewed-by: Kever Yang Tested-by: Kever Yang --- drivers/clk/rockchip/clk-pll.c | 50 ++++++++++++++++++++++++++++++++++++++++++ drivers/clk/rockchip/clk.h | 6 +++++ 2 files changed, 56 insertions(+) diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index 1bb68910a76b..f8d3baf275b2 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -258,6 +258,55 @@ static int rockchip_rk3066_pll_is_enabled(struct clk_hw *hw) return !(pllcon & RK3066_PLLCON3_PWRDOWN); } +static void rockchip_rk3066_pll_init(struct clk_hw *hw) +{ + struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw); + const struct rockchip_pll_rate_table *rate; + unsigned int nf, nr, no, bwadj; + unsigned long drate; + u32 pllcon; + + if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE)) + return; + + drate = __clk_get_rate(hw->clk); + rate = rockchip_get_pll_settings(pll, drate); + + /* when no rate setting for the current rate, rely on clk_set_rate */ + if (!rate) + return; + + pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(0)); + nr = ((pllcon >> RK3066_PLLCON0_NR_SHIFT) & RK3066_PLLCON0_NR_MASK) + 1; + no = ((pllcon >> RK3066_PLLCON0_OD_SHIFT) & RK3066_PLLCON0_OD_MASK) + 1; + + pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(1)); + nf = ((pllcon >> RK3066_PLLCON1_NF_SHIFT) & RK3066_PLLCON1_NF_MASK) + 1; + + pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(2)); + bwadj = (pllcon >> RK3066_PLLCON2_BWADJ_SHIFT) & RK3066_PLLCON2_BWADJ_MASK; + + pr_debug("%s: pll %s@%lu: nr (%d:%d); no (%d:%d); nf(%d:%d), bwadj(%d:%d)\n", + __func__, __clk_get_name(hw->clk), drate, rate->nr, nr, + rate->no, no, rate->nf, nf, rate->bwadj, bwadj); + if (rate->nr != nr || rate->no != no || rate->nf != nf + || rate->bwadj != bwadj) { + struct clk *parent = __clk_get_parent(hw->clk); + unsigned long prate; + + if (!parent) { + pr_warn("%s: parent of %s not available\n", + __func__, __clk_get_name(hw->clk)); + return; + } + + pr_debug("%s: pll %s: rate params do not match rate table, adjusting\n", + __func__, __clk_get_name(hw->clk)); + prate = __clk_get_rate(parent); + rockchip_rk3066_pll_set_rate(hw, drate, prate); + } +} + static const struct clk_ops rockchip_rk3066_pll_clk_norate_ops = { .recalc_rate = rockchip_rk3066_pll_recalc_rate, .enable = rockchip_rk3066_pll_enable, @@ -272,6 +321,7 @@ static const struct clk_ops rockchip_rk3066_pll_clk_ops = { .enable = rockchip_rk3066_pll_enable, .disable = rockchip_rk3066_pll_disable, .is_enabled = rockchip_rk3066_pll_is_enabled, + .init = rockchip_rk3066_pll_init, }; /* diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index eefd39a3820b..dc9468132ef1 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -92,6 +92,10 @@ struct rockchip_pll_rate_table { * @type: Type of PLL to be registered. * @pll_flags: hardware-specific flags * @rate_table: Table of usable pll rates + * + * Flags: + * ROCKCHIP_PLL_SYNC_RATE - check rate parameters to match against the + * rate_table parameters and ajust them if necessary. */ struct rockchip_pll_clock { unsigned int id; @@ -108,6 +112,8 @@ struct rockchip_pll_clock { struct rockchip_pll_rate_table *rate_table; }; +#define ROCKCHIP_PLL_SYNC_RATE BIT(0) + #define PLL(_type, _id, _name, _pnames, _flags, _con, _mode, _mshift, \ _lshift, _pflags, _rtable) \ { \ -- cgit v1.2.2 From dd79c0bea70516f52edc01c32e3f1ac7f20751a5 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Thu, 20 Nov 2014 20:38:53 +0100 Subject: clk: rockchip: add ROCKCHIP_PLL_SYNC_RATE flag to some plls Add the new flag to gpll and cpll on rk3188 and similar and to gpll, cpll and npll on rk3288. Signed-off-by: Heiko Stuebner Reviewed-by: Kever Yang Tested-by: Kever Yang --- drivers/clk/rockchip/clk-rk3188.c | 4 ++-- drivers/clk/rockchip/clk-rk3288.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index dc028b754c9e..c54078960847 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -216,9 +216,9 @@ static struct rockchip_pll_clock rk3188_pll_clks[] __initdata = { [dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4), RK2928_MODE_CON, 4, 5, 0, NULL), [cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK2928_PLL_CON(8), - RK2928_MODE_CON, 8, 7, 0, rk3188_pll_rates), + RK2928_MODE_CON, 8, 7, ROCKCHIP_PLL_SYNC_RATE, rk3188_pll_rates), [gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12), - RK2928_MODE_CON, 12, 8, 0, rk3188_pll_rates), + RK2928_MODE_CON, 12, 8, ROCKCHIP_PLL_SYNC_RATE, rk3188_pll_rates), }; #define MFLAGS CLK_MUX_HIWORD_MASK diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 2d31a22c0273..ad8a27a9cd50 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -206,11 +206,11 @@ static struct rockchip_pll_clock rk3288_pll_clks[] __initdata = { [dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK3288_PLL_CON(4), RK3288_MODE_CON, 4, 5, 0, NULL), [cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK3288_PLL_CON(8), - RK3288_MODE_CON, 8, 7, 0, rk3288_pll_rates), + RK3288_MODE_CON, 8, 7, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates), [gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK3288_PLL_CON(12), - RK3288_MODE_CON, 12, 8, 0, rk3288_pll_rates), + RK3288_MODE_CON, 12, 8, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates), [npll] = PLL(pll_rk3066, PLL_NPLL, "npll", mux_pll_p, 0, RK3288_PLL_CON(16), - RK3288_MODE_CON, 14, 9, 0, rk3288_pll_rates), + RK3288_MODE_CON, 14, 9, ROCKCHIP_PLL_SYNC_RATE, rk3288_pll_rates), }; static struct clk_div_table div_hclk_cpu_t[] = { -- cgit v1.2.2 From 250d07d1e782e68e9b2e7b637703b3739f0ec1b1 Mon Sep 17 00:00:00 2001 From: kbuild test robot Date: Wed, 26 Nov 2014 07:45:12 +0800 Subject: clk: clk-s2mps11: fix semicolon.cocci warnings drivers/clk/clk-s2mps11.c:181:2-3: Unneeded semicolon Removes unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci CC: Tushar Behera Signed-off-by: Fengguang Wu Signed-off-by: Michael Turquette --- drivers/clk/clk-s2mps11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c index b7797fb12e12..f16ab25e12c0 100644 --- a/drivers/clk/clk-s2mps11.c +++ b/drivers/clk/clk-s2mps11.c @@ -195,7 +195,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev) default: dev_err(&pdev->dev, "Invalid device type\n"); return -EINVAL; - }; + } /* Store clocks of_node in first element of s2mps11_clks array */ s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, clks_init); -- cgit v1.2.2 From 1ae2b01658a5ae00786d4bda191fbf6f38e5dbb0 Mon Sep 17 00:00:00 2001 From: Jeff Chen Date: Tue, 25 Nov 2014 16:13:02 -0800 Subject: clk: rockchip: add binding ID for DMC (memory controller) clocks on rk3288 The DMC clocks need to be turned off at runtime, so we should have IDs so we can export them. Signed-off-by: Jeff Chen [dianders: split into two patches; adjusted commit msg] Signed-off-by: Doug Anderson Signed-off-by: Heiko Stuebner --- include/dt-bindings/clock/rk3288-cru.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h index 100a08c47692..8e19ed58db33 100644 --- a/include/dt-bindings/clock/rk3288-cru.h +++ b/include/dt-bindings/clock/rk3288-cru.h @@ -141,6 +141,10 @@ #define PCLK_VIO2_H2P 361 #define PCLK_CPU 362 #define PCLK_PERI 363 +#define PCLK_DDRUPCTL0 364 +#define PCLK_PUBL0 365 +#define PCLK_DDRUPCTL1 366 +#define PCLK_PUBL1 367 /* hclk gates */ #define HCLK_GPS 448 -- cgit v1.2.2 From a72da7c1666b4464f1610fb9e90ac64ca2ea7a44 Mon Sep 17 00:00:00 2001 From: Jeff Chen Date: Tue, 25 Nov 2014 16:13:03 -0800 Subject: clk: rockchip: use clock ID for DMC (memory controller) on rk3288 The DMC clocks need to be turned off at runtime. Use the newly assigned clock IDs to export them. Signed-off-by: Jeff Chen [dianders: split into two patches; adjusted commit msg] Signed-off-by: Doug Anderson Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index ad8a27a9cd50..232809725c55 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -625,10 +625,10 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { GATE(PCLK_TIMER, "pclk_timer", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 1, GFLAGS), GATE(PCLK_I2C0, "pclk_i2c0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 2, GFLAGS), GATE(PCLK_I2C2, "pclk_i2c2", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 3, GFLAGS), - GATE(0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS), - GATE(0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS), - GATE(0, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS), - GATE(0, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS), + GATE(PCLK_DDRUPCTL0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS), + GATE(PCLK_PUBL0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS), + GATE(PCLK_DDRUPCTL1, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS), + GATE(PCLK_PUBL1, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS), GATE(0, "pclk_efuse_1024", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 2, GFLAGS), GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS), GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS), -- cgit v1.2.2 From 6d288b169bdfbed28d308b077af3d9196025cd8b Mon Sep 17 00:00:00 2001 From: Sonny Rao Date: Tue, 18 Nov 2014 23:15:19 -0800 Subject: clk: rockchip: rk3288 export i2s0_clkout for use in DT This exposes the clock that comes out of the i2s block which generally goes to the audio codec. Signed-off-by: Sonny Rao [removed CLK_SET_RATE_PARENT from original patch] Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/clk-rk3288.c | 2 +- include/dt-bindings/clock/rk3288-cru.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 232809725c55..a43045b05d98 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -308,7 +308,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKGATE_CON(4), 2, GFLAGS), MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(4), 8, 2, MFLAGS), - COMPOSITE_NODIV(0, "i2s0_clkout", mux_i2s_clkout_p, 0, + COMPOSITE_NODIV(SCLK_I2S0_OUT, "i2s0_clkout", mux_i2s_clkout_p, 0, RK3288_CLKSEL_CON(4), 12, 1, MFLAGS, RK3288_CLKGATE_CON(4), 0, GFLAGS), GATE(SCLK_I2S0, "sclk_i2s0", "i2s_pre", CLK_SET_RATE_PARENT, diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h index 8e19ed58db33..edf011039b07 100644 --- a/include/dt-bindings/clock/rk3288-cru.h +++ b/include/dt-bindings/clock/rk3288-cru.h @@ -71,6 +71,7 @@ #define SCLK_HDMI_CEC 110 #define SCLK_HEVC_CABAC 111 #define SCLK_HEVC_CORE 112 +#define SCLK_I2S0_OUT 113 #define DCLK_VOP0 190 #define DCLK_VOP1 191 -- cgit v1.2.2 From c1c9f2cced4e3ba22b3fc25603dd3bd2ec7dc173 Mon Sep 17 00:00:00 2001 From: Alexandru M Stan Date: Wed, 26 Nov 2014 17:30:26 -0800 Subject: clk: rockchip: add bindings for the mmc clocks These clocks represent the physical clocks (including phases) and they will later be used for clock phase tuning. Suggested-by: Heiko Stuebner Signed-off-by: Alexandru M Stan Signed-off-by: Heiko Stuebner --- include/dt-bindings/clock/rk3288-cru.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h index edf011039b07..f60ce72a2b2c 100644 --- a/include/dt-bindings/clock/rk3288-cru.h +++ b/include/dt-bindings/clock/rk3288-cru.h @@ -72,6 +72,14 @@ #define SCLK_HEVC_CABAC 111 #define SCLK_HEVC_CORE 112 #define SCLK_I2S0_OUT 113 +#define SCLK_SDMMC_DRV 114 +#define SCLK_SDIO0_DRV 115 +#define SCLK_SDIO1_DRV 116 +#define SCLK_EMMC_DRV 117 +#define SCLK_SDMMC_SAMPLE 118 +#define SCLK_SDIO0_SAMPLE 119 +#define SCLK_SDIO1_SAMPLE 120 +#define SCLK_EMMC_SAMPLE 121 #define DCLK_VOP0 190 #define DCLK_VOP1 191 -- cgit v1.2.2 From 89bf26cbc1a09476c4c4740d16a0ffdfa2192b9c Mon Sep 17 00:00:00 2001 From: Alexandru M Stan Date: Wed, 26 Nov 2014 17:30:27 -0800 Subject: clk: rockchip: Add support for the mmc clock phases using the framework This patch adds the 2 physical clocks for the mmc (drive and sample). They're mostly there for the phase properties, but they also show the true clock (by dividing by RK3288_MMC_CLKGEN_DIV). The drive and sample phases are generated by dividing an upstream parent clock by 2, this allows us to adjust the phase by 90 deg. There's also an option to have up to 255 delay elements (40-80 picoseconds long). This driver uses those elements (under the assumption that they're 60 ps long) to generate approximate 22.5 degrees options. 67.5 (22.5*3) might be as high as 90 deg if the delay elements are as big as 80 ps, so a finer division (smaller than 22.5) was not picked because the phase might not be monotonic anymore. Suggested-by: Heiko Stuebner Signed-off-by: Alexandru M Stan Signed-off-by: Heiko Stuebner --- drivers/clk/rockchip/Makefile | 1 + drivers/clk/rockchip/clk-mmc-phase.c | 154 +++++++++++++++++++++++++++++++++++ drivers/clk/rockchip/clk-rk3288.c | 12 +++ drivers/clk/rockchip/clk.c | 8 ++ drivers/clk/rockchip/clk.h | 23 ++++++ 5 files changed, 198 insertions(+) create mode 100644 drivers/clk/rockchip/clk-mmc-phase.c diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile index bd8514d63634..2714097f90db 100644 --- a/drivers/clk/rockchip/Makefile +++ b/drivers/clk/rockchip/Makefile @@ -6,6 +6,7 @@ obj-y += clk-rockchip.o obj-y += clk.o obj-y += clk-pll.o obj-y += clk-cpu.o +obj-y += clk-mmc-phase.o obj-$(CONFIG_RESET_CONTROLLER) += softrst.o obj-y += clk-rk3188.o diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c new file mode 100644 index 000000000000..c842e3b60f21 --- /dev/null +++ b/drivers/clk/rockchip/clk-mmc-phase.c @@ -0,0 +1,154 @@ +/* + * Copyright 2014 Google, Inc + * Author: Alexandru M Stan + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include "clk.h" + +struct rockchip_mmc_clock { + struct clk_hw hw; + void __iomem *reg; + int id; + int shift; +}; + +#define to_mmc_clock(_hw) container_of(_hw, struct rockchip_mmc_clock, hw) + +#define RK3288_MMC_CLKGEN_DIV 2 + +static unsigned long rockchip_mmc_recalc(struct clk_hw *hw, + unsigned long parent_rate) +{ + return parent_rate / RK3288_MMC_CLKGEN_DIV; +} + +#define ROCKCHIP_MMC_DELAY_SEL BIT(10) +#define ROCKCHIP_MMC_DEGREE_MASK 0x3 +#define ROCKCHIP_MMC_DELAYNUM_OFFSET 2 +#define ROCKCHIP_MMC_DELAYNUM_MASK (0xff << ROCKCHIP_MMC_DELAYNUM_OFFSET) + +#define PSECS_PER_SEC 1000000000000LL + +/* + * Each fine delay is between 40ps-80ps. Assume each fine delay is 60ps to + * simplify calculations. So 45degs could be anywhere between 33deg and 66deg. + */ +#define ROCKCHIP_MMC_DELAY_ELEMENT_PSEC 60 + +static int rockchip_mmc_get_phase(struct clk_hw *hw) +{ + struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw); + unsigned long rate = clk_get_rate(hw->clk); + u32 raw_value; + u16 degrees; + u32 delay_num = 0; + + raw_value = readl(mmc_clock->reg) >> (mmc_clock->shift); + + degrees = (raw_value & ROCKCHIP_MMC_DEGREE_MASK) * 90; + + if (raw_value & ROCKCHIP_MMC_DELAY_SEL) { + /* degrees/delaynum * 10000 */ + unsigned long factor = (ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10) * + 36 * (rate / 1000000); + + delay_num = (raw_value & ROCKCHIP_MMC_DELAYNUM_MASK); + delay_num >>= ROCKCHIP_MMC_DELAYNUM_OFFSET; + degrees += delay_num * factor / 10000; + } + + return degrees % 360; +} + +static int rockchip_mmc_set_phase(struct clk_hw *hw, int degrees) +{ + struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw); + unsigned long rate = clk_get_rate(hw->clk); + u8 nineties, remainder; + u8 delay_num; + u32 raw_value; + u64 delay; + + /* allow 22 to be 22.5 */ + degrees++; + /* floor to 22.5 increment */ + degrees -= ((degrees) * 10 % 225) / 10; + + nineties = degrees / 90; + /* 22.5 multiples */ + remainder = (degrees % 90) / 22; + + delay = PSECS_PER_SEC; + do_div(delay, rate); + /* / 360 / 22.5 */ + do_div(delay, 16); + do_div(delay, ROCKCHIP_MMC_DELAY_ELEMENT_PSEC); + + delay *= remainder; + delay_num = (u8) min(delay, 255ULL); + + raw_value = delay_num ? ROCKCHIP_MMC_DELAY_SEL : 0; + raw_value |= delay_num << ROCKCHIP_MMC_DELAYNUM_OFFSET; + raw_value |= nineties; + writel(HIWORD_UPDATE(raw_value, 0x07ff, mmc_clock->shift), mmc_clock->reg); + + pr_debug("%s->set_phase(%d) delay_nums=%u reg[0x%p]=0x%03x actual_degrees=%d\n", + __clk_get_name(hw->clk), degrees, delay_num, + mmc_clock->reg, raw_value>>(mmc_clock->shift), + rockchip_mmc_get_phase(hw) + ); + + return 0; +} + +static const struct clk_ops rockchip_mmc_clk_ops = { + .recalc_rate = rockchip_mmc_recalc, + .get_phase = rockchip_mmc_get_phase, + .set_phase = rockchip_mmc_set_phase, +}; + +struct clk *rockchip_clk_register_mmc(const char *name, + const char **parent_names, u8 num_parents, + void __iomem *reg, int shift) +{ + struct clk_init_data init; + struct rockchip_mmc_clock *mmc_clock; + struct clk *clk; + + mmc_clock = kmalloc(sizeof(*mmc_clock), GFP_KERNEL); + if (!mmc_clock) + return NULL; + + init.num_parents = num_parents; + init.parent_names = parent_names; + init.ops = &rockchip_mmc_clk_ops; + + mmc_clock->hw.init = &init; + mmc_clock->reg = reg; + mmc_clock->shift = shift; + + if (name) + init.name = name; + + clk = clk_register(NULL, &mmc_clock->hw); + if (IS_ERR(clk)) + goto err_free; + + return clk; + +err_free: + kfree(mmc_clock); + return NULL; +} diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index a43045b05d98..ac6be7c0132d 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -486,6 +486,18 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { RK3288_CLKSEL_CON(12), 14, 2, MFLAGS, 8, 6, DFLAGS, RK3288_CLKGATE_CON(13), 3, GFLAGS), + MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3288_SDMMC_CON0, 1), + MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3288_SDMMC_CON1, 0), + + MMC(SCLK_SDIO0_DRV, "sdio0_drv", "sclk_sdio0", RK3288_SDIO0_CON0, 1), + MMC(SCLK_SDIO0_SAMPLE, "sdio0_sample", "sclk_sdio0", RK3288_SDIO0_CON1, 0), + + MMC(SCLK_SDIO1_DRV, "sdio1_drv", "sclk_sdio1", RK3288_SDIO1_CON0, 1), + MMC(SCLK_SDIO1_SAMPLE, "sdio1_sample", "sclk_sdio1", RK3288_SDIO1_CON1, 0), + + MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3288_EMMC_CON0, 1), + MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3288_EMMC_CON1, 0), + COMPOSITE(0, "sclk_tspout", mux_tspout_p, 0, RK3288_CLKSEL_CON(35), 14, 2, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(4), 11, GFLAGS), diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index 3b8f26e2cd1a..f6150da97e8b 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -271,6 +271,14 @@ void __init rockchip_clk_register_branches( list->gate_offset, list->gate_shift, list->gate_flags, flags, &clk_lock); break; + case branch_mmc: + clk = rockchip_clk_register_mmc( + list->name, + list->parent_names, list->num_parents, + reg_base + list->muxdiv_offset, + list->div_shift + ); + break; } /* none of the cases above matched */ diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index dc9468132ef1..58d2e3bdf22f 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -48,6 +48,14 @@ #define RK3288_GLB_SRST_SND 0x1b4 #define RK3288_SOFTRST_CON(x) (x * 0x4 + 0x1b8) #define RK3288_MISC_CON 0x1e8 +#define RK3288_SDMMC_CON0 0x200 +#define RK3288_SDMMC_CON1 0x204 +#define RK3288_SDIO0_CON0 0x208 +#define RK3288_SDIO0_CON1 0x20c +#define RK3288_SDIO1_CON0 0x210 +#define RK3288_SDIO1_CON1 0x214 +#define RK3288_EMMC_CON0 0x218 +#define RK3288_EMMC_CON1 0x21c enum rockchip_pll_type { pll_rk3066, @@ -170,6 +178,10 @@ struct clk *rockchip_clk_register_cpuclk(const char *name, const struct rockchip_cpuclk_rate_table *rates, int nrates, void __iomem *reg_base, spinlock_t *lock); +struct clk *rockchip_clk_register_mmc(const char *name, + const char **parent_names, u8 num_parents, + void __iomem *reg, int shift); + #define PNAME(x) static const char *x[] __initconst enum rockchip_clk_branch_type { @@ -178,6 +190,7 @@ enum rockchip_clk_branch_type { branch_divider, branch_fraction_divider, branch_gate, + branch_mmc, }; struct rockchip_clk_branch { @@ -370,6 +383,16 @@ struct rockchip_clk_branch { .gate_flags = gf, \ } +#define MMC(_id, cname, pname, offset, shift) \ + { \ + .id = _id, \ + .branch_type = branch_mmc, \ + .name = cname, \ + .parent_names = (const char *[]){ pname }, \ + .num_parents = 1, \ + .muxdiv_offset = offset, \ + .div_shift = shift, \ + } void rockchip_clk_init(struct device_node *np, void __iomem *base, unsigned long nr_clks); -- cgit v1.2.2 From 2e41b9fc11f2d242f39b36ceba833471629ba3d5 Mon Sep 17 00:00:00 2001 From: Pankaj Dubey Date: Mon, 29 Sep 2014 13:17:46 +0530 Subject: clk: samsung: Spelling s/bwtween/between/ Fix a typo in comment section of "struct samsung_clk_provider". Signed-off-by: Pankaj Dubey Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index 3f471e958cb0..101a43b5c39e 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -25,7 +25,7 @@ * struct samsung_clk_provider: information about clock provider * @reg_base: virtual address for the register base. * @clk_data: holds clock related data like clk* and number of clocks. - * @lock: maintains exclusion bwtween callbacks for a given clock-provider. + * @lock: maintains exclusion between callbacks for a given clock-provider. */ struct samsung_clk_provider { void __iomem *reg_base; -- cgit v1.2.2 From 7882857e98354866c6ae0b32dfb82c8e8e82cf28 Mon Sep 17 00:00:00 2001 From: Pankaj Dubey Date: Mon, 29 Sep 2014 13:17:47 +0530 Subject: clk: samsung: remove unnecessary CONFIG_OF from clk.c Remove unnecessary CONFIG_OF from samsung/clk.c. Signed-off-by: Pankaj Dubey Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index dd1f7c977b6b..1b4cf3b87b73 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -283,7 +283,6 @@ void __init samsung_clk_register_gate(struct samsung_clk_provider *ctx, * obtain the clock speed of all external fixed clock sources from device * tree and register it */ -#ifdef CONFIG_OF void __init samsung_clk_of_register_fixed_ext(struct samsung_clk_provider *ctx, struct samsung_fixed_rate_clock *fixed_rate_clk, unsigned int nr_fixed_rate_clk, @@ -300,7 +299,6 @@ void __init samsung_clk_of_register_fixed_ext(struct samsung_clk_provider *ctx, } samsung_clk_register_fixed_rate(ctx, fixed_rate_clk, nr_fixed_rate_clk); } -#endif /* utility function to get the rate of a specified clock */ unsigned long _get_rate(const char *clk_name) -- cgit v1.2.2 From 8b2f63606a1322bd051e15913a8233295e8a7599 Mon Sep 17 00:00:00 2001 From: Pankaj Dubey Date: Mon, 29 Sep 2014 13:17:48 +0530 Subject: clk: samsung: remove unnecessary inclusion of header files from clk.h Let's remove unnecessary include of header files from clk.h and add required one in clk.c Signed-off-by: Pankaj Dubey [s.nawrocki@samsung.com: dropped removal of '#include '] Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk.c | 2 ++ drivers/clk/samsung/clk.h | 4 ---- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index 1b4cf3b87b73..4bda54095a16 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -11,7 +11,9 @@ * clock framework for Samsung platforms. */ +#include #include + #include "clk.h" static LIST_HEAD(clock_reg_cache_list); diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index 101a43b5c39e..8acabe1f32c4 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -13,12 +13,8 @@ #ifndef __SAMSUNG_CLK_H #define __SAMSUNG_CLK_H -#include #include -#include #include -#include -#include #include "clk-pll.h" /** -- cgit v1.2.2 From b5f56e14c1c962e201a8afa80e156f64fdef778a Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Mon, 1 Dec 2014 10:12:54 +0100 Subject: clk: samsung: exynos4415: Fix build with PM_SLEEP disabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix following build errors when PM_SLEEP is disabled (e.g. by disabling SUSPEND and HIBERNATION): drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_init’: drivers/clk/samsung/clk-exynos4415.c:982:2: error: ‘exynos4415_ctx’ undeclared (first use in this function) drivers/clk/samsung/clk-exynos4415.c:982:2: note: each undeclared identifier is reported only once for each function it appears in drivers/clk/samsung/clk-exynos4415.c: In function ‘exynos4415_cmu_dmc_init’: drivers/clk/samsung/clk-exynos4415.c:1123:2: error: ‘exynos4415_dmc_ctx’ undeclared (first use in this function) make[3]: *** [drivers/clk/samsung/clk-exynos4415.o] Error 1 Signed-off-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos4415.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/clk/samsung/clk-exynos4415.c b/drivers/clk/samsung/clk-exynos4415.c index c7208c7a3add..2123fc251e0f 100644 --- a/drivers/clk/samsung/clk-exynos4415.c +++ b/drivers/clk/samsung/clk-exynos4415.c @@ -118,12 +118,13 @@ enum exynos4415_plls { nr_plls, }; +static struct samsung_clk_provider *exynos4415_ctx; + /* * Support for CMU save/restore across system suspends */ #ifdef CONFIG_PM_SLEEP static struct samsung_clk_reg_dump *exynos4415_clk_regs; -static struct samsung_clk_provider *exynos4415_ctx; static unsigned long exynos4415_cmu_clk_regs[] __initdata = { SRC_LEFTBUS, @@ -1031,9 +1032,10 @@ enum exynos4415_dmc_plls { nr_dmc_plls, }; +static struct samsung_clk_provider *exynos4415_dmc_ctx; + #ifdef CONFIG_PM_SLEEP static struct samsung_clk_reg_dump *exynos4415_dmc_clk_regs; -static struct samsung_clk_provider *exynos4415_dmc_ctx; static unsigned long exynos4415_cmu_dmc_clk_regs[] __initdata = { MPLL_LOCK, -- cgit v1.2.2 From df019a5c0f7083001cb694f44821ca506425bda2 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Mon, 24 Nov 2014 08:30:50 +0100 Subject: clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi sclk_hdmiphy clock is generated by HDMI-PHY and depends on hdmi gate clock. The patch models this dependency using parent/child hirerarchy. The patch fixes issue with system hangs during mixer device access, mixer uses sclk_hdmiphy descendant clock. Signed-off-by: Andrzej Hajda Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos4.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index 940f02837b82..88e8c6bbd77f 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -505,7 +505,7 @@ static struct samsung_fixed_rate_clock exynos4_fixed_rate_ext_clks[] __initdata /* fixed rate clocks generated inside the soc */ static struct samsung_fixed_rate_clock exynos4_fixed_rate_clks[] __initdata = { FRATE(0, "sclk_hdmi24m", NULL, CLK_IS_ROOT, 24000000), - FRATE(CLK_SCLK_HDMIPHY, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 27000000), + FRATE(CLK_SCLK_HDMIPHY, "sclk_hdmiphy", "hdmi", 0, 27000000), FRATE(0, "sclk_usbphy0", NULL, CLK_IS_ROOT, 48000000), }; -- cgit v1.2.2 From c31844ffdbd4e73a16c66e9d7df8ec290ab4b159 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 26 Nov 2014 15:24:13 +0100 Subject: clk: samsung: Fix double add of syscore ops after driver rebind During driver unbind the syscore ops were not unregistered which lead to double add on syscore list: $ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/unbind $ echo "3810000.audss-clock-controller" > /sys/bus/platform/drivers/exynos-audss-clk/bind [ 1463.044061] ------------[ cut here ]------------ [ 1463.047255] WARNING: CPU: 0 PID: 1 at lib/list_debug.c:36 __list_add+0x8c/0xc0() [ 1463.054613] list_add double add: new=c06e52c0, prev=c06e52c0, next=c06d5f84. [ 1463.061625] Modules linked in: [ 1463.064623] CPU: 0 PID: 1 Comm: bash Tainted: G W 3.18.0-rc5-next-20141121-00005-ga8fab06eab42-dirty #1022 [ 1463.075338] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 1463.083046] [] (show_stack) from [] (dump_stack+0x70/0xbc) [ 1463.090236] [] (dump_stack) from [] (warn_slowpath_common+0x74/0xb0) [ 1463.098295] [] (warn_slowpath_common) from [] (warn_slowpath_fmt+0x30/0x40) [ 1463.106962] [] (warn_slowpath_fmt) from [] (__list_add+0x8c/0xc0) [ 1463.114760] [] (__list_add) from [] (register_syscore_ops+0x30/0x3c) [ 1463.122819] [] (register_syscore_ops) from [] (exynos_audss_clk_probe+0x36c/0x460) [ 1463.132091] [] (exynos_audss_clk_probe) from [] (platform_drv_probe+0x48/0xa4) [ 1463.141013] [] (platform_drv_probe) from [] (driver_probe_device+0x13c/0x37c) [ 1463.149852] [] (driver_probe_device) from [] (bind_store+0x90/0xe0) [ 1463.157822] [] (bind_store) from [] (drv_attr_store+0x20/0x2c) [ 1463.165363] [] (drv_attr_store) from [] (sysfs_kf_write+0x4c/0x50) [ 1463.173252] [] (sysfs_kf_write) from [] (kernfs_fop_write+0xbc/0x198) [ 1463.181395] [] (kernfs_fop_write) from [] (vfs_write+0xa0/0x1a8) [ 1463.189104] [] (vfs_write) from [] (SyS_write+0x40/0x8c) [ 1463.196122] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x48) [ 1463.203655] ---[ end trace 08f6710c9bc8d8f3 ]--- [ 1463.208244] exynos-audss-clk 3810000.audss-clock-controller: setup completed Signed-off-by: Krzysztof Kozlowski Fixes: 1241ef94ccc3 ("clk: samsung: register audio subsystem clocks using common clock framework") Cc: Signed-off-by: Sylwester Nawrocki --- drivers/clk/samsung/clk-exynos-audss.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index 13eae14c2cc2..b50469faf70c 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -210,6 +210,10 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) { int i; +#ifdef CONFIG_PM_SLEEP + unregister_syscore_ops(&exynos_audss_clk_syscore_ops); +#endif + of_clk_del_provider(pdev->dev.of_node); for (i = 0; i < clk_data.clk_num; i++) { -- cgit v1.2.2 From 4afbe1760d89fec07e7a8cce58beb1b4921a194c Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Tue, 2 Dec 2014 08:54:18 +0100 Subject: clk: Remove unused function __clk_get_prepare_count Signed-off-by: Tomeu Vizoso Reviewed-by: Stephen Boyd Signed-off-by: Michael Turquette --- drivers/clk/clk.c | 5 ----- include/linux/clk-provider.h | 1 - 2 files changed, 6 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 5307225684eb..42f940ff5edf 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -574,11 +574,6 @@ unsigned int __clk_get_enable_count(struct clk *clk) return !clk ? 0 : clk->enable_count; } -unsigned int __clk_get_prepare_count(struct clk *clk) -{ - return !clk ? 0 : clk->prepare_count; -} - unsigned long __clk_get_rate(struct clk *clk) { unsigned long ret; diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 2839c639f092..fcf3252b829f 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -544,7 +544,6 @@ u8 __clk_get_num_parents(struct clk *clk); struct clk *__clk_get_parent(struct clk *clk); struct clk *clk_get_parent_by_index(struct clk *clk, u8 index); unsigned int __clk_get_enable_count(struct clk *clk); -unsigned int __clk_get_prepare_count(struct clk *clk); unsigned long __clk_get_rate(struct clk *clk); unsigned long __clk_get_accuracy(struct clk *clk); unsigned long __clk_get_flags(struct clk *clk); -- cgit v1.2.2 From 10cdfe54dab034311c8e2fad9ba2dffbe616caa9 Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Tue, 2 Dec 2014 08:54:19 +0100 Subject: clk: Don't try to use a struct clk* after it could have been freed As __clk_release could call kfree on clk and then we wouldn't have a safe way of getting the module that owns the clock. Signed-off-by: Tomeu Vizoso Fixes: fcb0ee6a3d33 ("clk: Implement clk_unregister") Reviewed-by: Stephen Boyd Signed-off-by: Michael Turquette --- drivers/clk/clk.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 42f940ff5edf..609e9db1a69a 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2268,14 +2268,17 @@ int __clk_get(struct clk *clk) void __clk_put(struct clk *clk) { + struct module *owner; + if (!clk || WARN_ON_ONCE(IS_ERR(clk))) return; clk_prepare_lock(); + owner = clk->owner; kref_put(&clk->ref, __clk_release); clk_prepare_unlock(); - module_put(clk->owner); + module_put(owner); } /*** clk rate change notifiers ***/ -- cgit v1.2.2 From 920f1c7472f35cd3b3a3add10cccb0ef12376a17 Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Tue, 2 Dec 2014 08:54:20 +0100 Subject: clk: Don't expose __clk_get_accuracy As it's only used internally, in drivers/clk/clk.c. Signed-off-by: Tomeu Vizoso Reviewed-by: Stephen Boyd Signed-off-by: Michael Turquette --- drivers/clk/clk.c | 2 +- include/linux/clk-provider.h | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 609e9db1a69a..73247e90ee59 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -596,7 +596,7 @@ out: } EXPORT_SYMBOL_GPL(__clk_get_rate); -unsigned long __clk_get_accuracy(struct clk *clk) +static unsigned long __clk_get_accuracy(struct clk *clk) { if (!clk) return 0; diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index fcf3252b829f..270137aaf3ab 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -545,7 +545,6 @@ struct clk *__clk_get_parent(struct clk *clk); struct clk *clk_get_parent_by_index(struct clk *clk, u8 index); unsigned int __clk_get_enable_count(struct clk *clk); unsigned long __clk_get_rate(struct clk *clk); -unsigned long __clk_get_accuracy(struct clk *clk); unsigned long __clk_get_flags(struct clk *clk); bool __clk_is_prepared(struct clk *clk); bool __clk_is_enabled(struct clk *clk); -- cgit v1.2.2 From 61c7cddfad266ebb86176723f9c679f25cf705fe Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Tue, 2 Dec 2014 08:54:21 +0100 Subject: clk: change clk_debugfs_add_file to take a struct clk_hw Instead of struct clk, as this should be only used by providers. Signed-off-by: Tomeu Vizoso Reviewed-by: Stephen Boyd Signed-off-by: Michael Turquette --- drivers/clk/clk.c | 6 +++--- include/linux/clk-provider.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 73247e90ee59..f549e8b1d5ed 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -354,13 +354,13 @@ out: mutex_unlock(&clk_debug_lock); } -struct dentry *clk_debugfs_add_file(struct clk *clk, char *name, umode_t mode, +struct dentry *clk_debugfs_add_file(struct clk_hw *hw, char *name, umode_t mode, void *data, const struct file_operations *fops) { struct dentry *d = NULL; - if (clk->dentry) - d = debugfs_create_file(name, mode, clk->dentry, data, fops); + if (hw->clk->dentry) + d = debugfs_create_file(name, mode, hw->clk->dentry, data, fops); return d; } diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 270137aaf3ab..5e06f23eed41 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -650,7 +650,7 @@ static inline void clk_writel(u32 val, u32 __iomem *reg) #endif /* platform dependent I/O accessors */ #ifdef CONFIG_DEBUG_FS -struct dentry *clk_debugfs_add_file(struct clk *clk, char *name, umode_t mode, +struct dentry *clk_debugfs_add_file(struct clk_hw *hw, char *name, umode_t mode, void *data, const struct file_operations *fops); #endif -- cgit v1.2.2 From 646cafc6aa4d6004d189de1cdc267ab562069ba9 Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Tue, 2 Dec 2014 08:54:22 +0100 Subject: clk: Change clk_ops->determine_rate to return a clk_hw as the best parent This is in preparation for clock providers to not have to deal with struct clk. Signed-off-by: Tomeu Vizoso Reviewed-by: Stephen Boyd Signed-off-by: Michael Turquette --- Documentation/clk.txt | 2 +- arch/mips/alchemy/common/clock.c | 10 +++++----- drivers/clk/at91/clk-programmable.c | 4 ++-- drivers/clk/bcm/clk-kona.c | 4 ++-- drivers/clk/clk-composite.c | 9 +++++---- drivers/clk/clk.c | 17 +++++++++++------ drivers/clk/hisilicon/clk-hi3620.c | 2 +- drivers/clk/mmp/clk-mix.c | 4 ++-- drivers/clk/qcom/clk-pll.c | 2 +- drivers/clk/qcom/clk-rcg.c | 20 ++++++++++++-------- drivers/clk/qcom/clk-rcg2.c | 28 +++++++++++++++++----------- drivers/clk/sunxi/clk-factors.c | 4 ++-- drivers/clk/sunxi/clk-sun6i-ar100.c | 4 ++-- include/linux/clk-provider.h | 4 ++-- 14 files changed, 65 insertions(+), 49 deletions(-) diff --git a/Documentation/clk.txt b/Documentation/clk.txt index 1fee72f4d331..4ff84623d5e1 100644 --- a/Documentation/clk.txt +++ b/Documentation/clk.txt @@ -74,7 +74,7 @@ the operations defined in clk.h: long (*determine_rate)(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk); + struct clk_hw **best_parent_clk); int (*set_parent)(struct clk_hw *hw, u8 index); u8 (*get_parent)(struct clk_hw *hw); int (*set_rate)(struct clk_hw *hw, diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c index d7557cde271a..f42dd0a4af20 100644 --- a/arch/mips/alchemy/common/clock.c +++ b/arch/mips/alchemy/common/clock.c @@ -375,7 +375,7 @@ static long alchemy_calc_div(unsigned long rate, unsigned long prate, static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk, + struct clk_hw **best_parent_clk, int scale, int maxdiv) { struct clk *pc, *bpc, *free; @@ -454,7 +454,7 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, } *best_parent_rate = bpr; - *best_parent_clk = bpc; + *best_parent_clk = __clk_get_hw(bpc); return br; } @@ -548,7 +548,7 @@ static unsigned long alchemy_clk_fgv1_recalc(struct clk_hw *hw, static long alchemy_clk_fgv1_detr(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate, best_parent_clk, 2, 512); @@ -680,7 +680,7 @@ static unsigned long alchemy_clk_fgv2_recalc(struct clk_hw *hw, static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct alchemy_fgcs_clk *c = to_fgcs_clk(hw); int scale, maxdiv; @@ -899,7 +899,7 @@ static int alchemy_clk_csrc_setr(struct clk_hw *hw, unsigned long rate, static long alchemy_clk_csrc_detr(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct alchemy_fgcs_clk *c = to_fgcs_clk(hw); int scale = c->dt[2] == 3 ? 1 : 2; /* au1300 check */ diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 62e2509f9df1..bbdb1b985c91 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -57,7 +57,7 @@ static unsigned long clk_programmable_recalc_rate(struct clk_hw *hw, static long clk_programmable_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_hw) { struct clk *parent = NULL; long best_rate = -EINVAL; @@ -84,7 +84,7 @@ static long clk_programmable_determine_rate(struct clk_hw *hw, if (best_rate < 0 || (rate - tmp_rate) < (rate - best_rate)) { best_rate = tmp_rate; *best_parent_rate = parent_rate; - *best_parent_clk = parent; + *best_parent_hw = __clk_get_hw(parent); } if (!best_rate) diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c index 95af2e665dd3..1c06f6f3a8c5 100644 --- a/drivers/clk/bcm/clk-kona.c +++ b/drivers/clk/bcm/clk-kona.c @@ -1032,7 +1032,7 @@ static long kona_peri_clk_round_rate(struct clk_hw *hw, unsigned long rate, } static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *best_parent_rate, struct clk **best_parent) + unsigned long *best_parent_rate, struct clk_hw **best_parent) { struct kona_clk *bcm_clk = to_kona_clk(hw); struct clk *clk = hw->clk; @@ -1075,7 +1075,7 @@ static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, if (delta < best_delta) { best_delta = delta; best_rate = other_rate; - *best_parent = parent; + *best_parent = __clk_get_hw(parent); *best_parent_rate = parent_rate; } } diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c index b9355daf8065..4386697236a7 100644 --- a/drivers/clk/clk-composite.c +++ b/drivers/clk/clk-composite.c @@ -57,7 +57,7 @@ static unsigned long clk_composite_recalc_rate(struct clk_hw *hw, static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk_composite *composite = to_clk_composite(hw); const struct clk_ops *rate_ops = composite->rate_ops; @@ -80,8 +80,9 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, *best_parent_p = NULL; if (__clk_get_flags(hw->clk) & CLK_SET_RATE_NO_REPARENT) { - *best_parent_p = clk_get_parent(mux_hw->clk); - *best_parent_rate = __clk_get_rate(*best_parent_p); + parent = clk_get_parent(mux_hw->clk); + *best_parent_p = __clk_get_hw(parent); + *best_parent_rate = __clk_get_rate(parent); return rate_ops->round_rate(rate_hw, rate, best_parent_rate); @@ -103,7 +104,7 @@ static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, if (!rate_diff || !*best_parent_p || best_rate_diff > rate_diff) { - *best_parent_p = parent; + *best_parent_p = __clk_get_hw(parent); *best_parent_rate = parent_rate; best_rate_diff = rate_diff; best_rate = tmp_rate; diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index f549e8b1d5ed..44cdc47a6cc5 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -702,7 +702,7 @@ struct clk *__clk_lookup(const char *name) */ long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -738,7 +738,7 @@ long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, out: if (best_parent) - *best_parent_p = best_parent; + *best_parent_p = best_parent->hw; *best_parent_rate = best; return best; @@ -946,6 +946,7 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) { unsigned long parent_rate = 0; struct clk *parent; + struct clk_hw *parent_hw; if (!clk) return 0; @@ -954,10 +955,11 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) if (parent) parent_rate = parent->rate; - if (clk->ops->determine_rate) + if (clk->ops->determine_rate) { + parent_hw = parent ? parent->hw : NULL; return clk->ops->determine_rate(clk->hw, rate, &parent_rate, - &parent); - else if (clk->ops->round_rate) + &parent_hw); + } else if (clk->ops->round_rate) return clk->ops->round_rate(clk->hw, rate, &parent_rate); else if (clk->flags & CLK_SET_RATE_PARENT) return __clk_round_rate(clk->parent, rate); @@ -1345,6 +1347,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate) { struct clk *top = clk; struct clk *old_parent, *parent; + struct clk_hw *parent_hw; unsigned long best_parent_rate = 0; unsigned long new_rate; int p_index = 0; @@ -1360,9 +1363,11 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate) /* find the closest rate and parent clk/rate */ if (clk->ops->determine_rate) { + parent_hw = parent ? parent->hw : NULL; new_rate = clk->ops->determine_rate(clk->hw, rate, &best_parent_rate, - &parent); + &parent_hw); + parent = parent_hw->clk; } else if (clk->ops->round_rate) { new_rate = clk->ops->round_rate(clk->hw, rate, &best_parent_rate); diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 640ea3327c3e..007144f81f50 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -296,7 +296,7 @@ static unsigned long mmc_clk_recalc_rate(struct clk_hw *hw, static long mmc_clk_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk_mmc *mclk = to_mmc(hw); unsigned long best = 0; diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c index b79742c47d53..48fa53c7ce5e 100644 --- a/drivers/clk/mmp/clk-mix.c +++ b/drivers/clk/mmp/clk-mix.c @@ -203,7 +203,7 @@ error: static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct mmp_clk_mix *mix = to_clk_mix(hw); struct mmp_clk_mix_clk_table *item; @@ -264,7 +264,7 @@ static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, found: *best_parent_rate = parent_rate_best; - *best_parent_clk = parent_best; + *best_parent_clk = __clk_get_hw(parent_best); return mix_rate_best; } diff --git a/drivers/clk/qcom/clk-pll.c b/drivers/clk/qcom/clk-pll.c index b823bc3b6250..60873a7f45d9 100644 --- a/drivers/clk/qcom/clk-pll.c +++ b/drivers/clk/qcom/clk-pll.c @@ -141,7 +141,7 @@ struct pll_freq_tbl *find_freq(const struct pll_freq_tbl *f, unsigned long rate) static long clk_pll_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_pll *pll = to_clk_pll(hw); const struct pll_freq_tbl *f; diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c index b6e6959e89aa..0b93972c8807 100644 --- a/drivers/clk/qcom/clk-rcg.c +++ b/drivers/clk/qcom/clk-rcg.c @@ -368,16 +368,17 @@ clk_dyn_rcg_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) static long _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { unsigned long clk_flags; + struct clk *p; f = qcom_find_freq(f, rate); if (!f) return -EINVAL; clk_flags = __clk_get_flags(hw->clk); - *p = clk_get_parent_by_index(hw->clk, f->src); + p = clk_get_parent_by_index(hw->clk, f->src); if (clk_flags & CLK_SET_RATE_PARENT) { rate = rate * f->pre_div; if (f->n) { @@ -387,15 +388,16 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(*p); + rate = __clk_get_rate(p); } + *p_hw = __clk_get_hw(p); *p_rate = rate; return f->freq; } static long clk_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg *rcg = to_clk_rcg(hw); @@ -403,7 +405,7 @@ static long clk_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, } static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_dyn_rcg *rcg = to_clk_dyn_rcg(hw); @@ -411,13 +413,15 @@ static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, } static long clk_rcg_bypass_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { struct clk_rcg *rcg = to_clk_rcg(hw); const struct freq_tbl *f = rcg->freq_tbl; + struct clk *p; - *p = clk_get_parent_by_index(hw->clk, f->src); - *p_rate = __clk_round_rate(*p, rate); + p = clk_get_parent_by_index(hw->clk, f->src); + *p_hw = __clk_get_hw(p); + *p_rate = __clk_round_rate(p, rate); return *p_rate; } diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index cfa9eb4fe9ca..08b8b3729f53 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -175,16 +175,17 @@ clk_rcg2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) static long _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { unsigned long clk_flags; + struct clk *p; f = qcom_find_freq(f, rate); if (!f) return -EINVAL; clk_flags = __clk_get_flags(hw->clk); - *p = clk_get_parent_by_index(hw->clk, f->src); + p = clk_get_parent_by_index(hw->clk, f->src); if (clk_flags & CLK_SET_RATE_PARENT) { if (f->pre_div) { rate /= 2; @@ -198,15 +199,16 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(*p); + rate = __clk_get_rate(p); } + *p_hw = __clk_get_hw(p); *p_rate = rate; return f->freq; } static long clk_rcg2_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); @@ -359,7 +361,7 @@ static int clk_edp_pixel_set_rate_and_parent(struct clk_hw *hw, } static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; @@ -371,7 +373,7 @@ static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, u32 hid_div; /* Force the correct parent */ - *p = clk_get_parent_by_index(hw->clk, f->src); + *p = __clk_get_hw(clk_get_parent_by_index(hw->clk, f->src)); if (src_rate == 810000000) frac = frac_table_810m; @@ -410,18 +412,20 @@ const struct clk_ops clk_edp_pixel_ops = { EXPORT_SYMBOL_GPL(clk_edp_pixel_ops); static long clk_byte_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p_hw) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; unsigned long parent_rate, div; u32 mask = BIT(rcg->hid_width) - 1; + struct clk *p; if (rate == 0) return -EINVAL; - *p = clk_get_parent_by_index(hw->clk, f->src); - *p_rate = parent_rate = __clk_round_rate(*p, rate); + p = clk_get_parent_by_index(hw->clk, f->src); + *p_hw = __clk_get_hw(p); + *p_rate = parent_rate = __clk_round_rate(p, rate); div = DIV_ROUND_UP((2 * parent_rate), rate) - 1; div = min_t(u32, div, mask); @@ -472,14 +476,16 @@ static const struct frac_entry frac_table_pixel[] = { }; static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *p_rate, struct clk **p) + unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); unsigned long request, src_rate; int delta = 100000; const struct freq_tbl *f = rcg->freq_tbl; const struct frac_entry *frac = frac_table_pixel; - struct clk *parent = *p = clk_get_parent_by_index(hw->clk, f->src); + struct clk *parent = clk_get_parent_by_index(hw->clk, f->src); + + *p = __clk_get_hw(parent); for (; frac->num; frac++) { request = (rate * frac->den) / frac->num; diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index 5521e866fa5e..62e08fb58554 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -81,7 +81,7 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate, static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p) + struct clk_hw **best_parent_p) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -108,7 +108,7 @@ static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, } if (best_parent) - *best_parent_p = best_parent; + *best_parent_p = __clk_get_hw(best_parent); *best_parent_rate = best; return best_child_rate; diff --git a/drivers/clk/sunxi/clk-sun6i-ar100.c b/drivers/clk/sunxi/clk-sun6i-ar100.c index acca53290be2..3d282fb8f85c 100644 --- a/drivers/clk/sunxi/clk-sun6i-ar100.c +++ b/drivers/clk/sunxi/clk-sun6i-ar100.c @@ -46,7 +46,7 @@ static unsigned long ar100_recalc_rate(struct clk_hw *hw, static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { int nparents = __clk_get_num_parents(hw->clk); long best_rate = -EINVAL; @@ -100,7 +100,7 @@ static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, tmp_rate = (parent_rate >> shift) / div; if (!*best_parent_clk || tmp_rate > best_rate) { - *best_parent_clk = parent; + *best_parent_clk = __clk_get_hw(parent); *best_parent_rate = parent_rate; best_rate = tmp_rate; } diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 5e06f23eed41..d936409520f8 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -176,7 +176,7 @@ struct clk_ops { unsigned long *parent_rate); long (*determine_rate)(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk); + struct clk_hw **best_parent_hw); int (*set_parent)(struct clk_hw *hw, u8 index); u8 (*get_parent)(struct clk_hw *hw); int (*set_rate)(struct clk_hw *hw, unsigned long rate, @@ -551,7 +551,7 @@ bool __clk_is_enabled(struct clk *clk); struct clk *__clk_lookup(const char *name); long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_p); + struct clk_hw **best_parent_p); /* * FIXME clock api without lock protection -- cgit v1.2.2 From 74fc23aa40525695e47d6988f9c0a501e39ef01d Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 9 Dec 2014 09:07:30 +0800 Subject: clk: mmp: fix sparse non static symbol warning Fixes the following sparse warnings: drivers/clk/mmp/clk-frac.c:113:6: warning: symbol 'clk_factor_init' was not declared. Should it be static? Signed-off-by: Wei Yongjun Signed-off-by: Michael Turquette --- drivers/clk/mmp/clk-frac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c index eeba52c2def6..584a9927993b 100644 --- a/drivers/clk/mmp/clk-frac.c +++ b/drivers/clk/mmp/clk-frac.c @@ -110,7 +110,7 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate, return 0; } -void clk_factor_init(struct clk_hw *hw) +static void clk_factor_init(struct clk_hw *hw) { struct mmp_clk_factor *factor = to_clk_factor(hw); struct mmp_clk_factor_masks *masks = factor->masks; -- cgit v1.2.2 From 89f7e9de59bf3e3cda2e00de12c66db22675a7cf Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 12 Dec 2014 15:04:16 -0800 Subject: clk: Really fix deadlock with mmap_sem Commit 6314b6796e3c (clk: Don't hold prepare_lock across debugfs creation, 2014-09-04) forgot to update one place where we hold the prepare_lock while creating debugfs directories. This means we still have the chance of a deadlock that the commit was trying to fix. Actually fix it by moving the debugfs creation outside the prepare_lock. Cc: # 3.18 Reported-by: Russell King Fixes: 6314b6796e3c "clk: Don't hold prepare_lock across debugfs creation" Signed-off-by: Stephen Boyd Reviewed-by: Thomas Gleixner Signed-off-by: Michael Turquette [mturquette@linaro.org: removed lockdep_assert] --- drivers/clk/clk.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 44cdc47a6cc5..f4963b7d4e17 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -240,7 +240,6 @@ static const struct file_operations clk_dump_fops = { .release = single_release, }; -/* caller must hold prepare_lock */ static int clk_debug_create_one(struct clk *clk, struct dentry *pdentry) { struct dentry *d; @@ -1944,7 +1943,6 @@ int __clk_init(struct device *dev, struct clk *clk) else clk->rate = 0; - clk_debug_register(clk); /* * walk the list of orphan clocks and reparent any that are children of * this clock @@ -1979,6 +1977,9 @@ int __clk_init(struct device *dev, struct clk *clk) out: clk_prepare_unlock(); + if (!ret) + clk_debug_register(clk); + return ret; } -- cgit v1.2.2 From 6f8e853d18a98ee95832ffebfaa288d42ae28cd5 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Fri, 12 Dec 2014 15:22:00 +0200 Subject: ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs While the change for determine_rate clock operation was merged, the OMAP counterpart using these calls was overlooked for some reason, and caused boot failures on at least OMAP4 platforms. Fixed by updating the DPLL API calls to use the new parameters. Signed-off-by: Tero Kristo Fixes: 646cafc6aa ("clk: Change clk_ops->determine_rate") Cc: Tomeu Vizoso Acked-by: Tony Lindgren Acked-by: Paul Walmsley Tested-by: Kevin Hilman Reported-by: Kevin Hilman Signed-off-by: Michael Turquette --- arch/arm/mach-omap2/dpll3xxx.c | 6 +++--- arch/arm/mach-omap2/dpll44xx.c | 6 +++--- include/linux/clk/ti.h | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c index 20e120d071dd..c2da2a0fe5ad 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/arch/arm/mach-omap2/dpll3xxx.c @@ -474,7 +474,7 @@ void omap3_noncore_dpll_disable(struct clk_hw *hw) */ long omap3_noncore_dpll_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); struct dpll_data *dd; @@ -488,10 +488,10 @@ long omap3_noncore_dpll_determine_rate(struct clk_hw *hw, unsigned long rate, if (__clk_get_rate(dd->clk_bypass) == rate && (dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) { - *best_parent_clk = dd->clk_bypass; + *best_parent_clk = __clk_get_hw(dd->clk_bypass); } else { rate = omap2_dpll_round_rate(hw, rate, best_parent_rate); - *best_parent_clk = dd->clk_ref; + *best_parent_clk = __clk_get_hw(dd->clk_ref); } *best_parent_rate = rate; diff --git a/arch/arm/mach-omap2/dpll44xx.c b/arch/arm/mach-omap2/dpll44xx.c index 535822fcf4bb..0e58e5a85d53 100644 --- a/arch/arm/mach-omap2/dpll44xx.c +++ b/arch/arm/mach-omap2/dpll44xx.c @@ -223,7 +223,7 @@ out: */ long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk) + struct clk_hw **best_parent_clk) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); struct dpll_data *dd; @@ -237,11 +237,11 @@ long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, unsigned long rate, if (__clk_get_rate(dd->clk_bypass) == rate && (dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) { - *best_parent_clk = dd->clk_bypass; + *best_parent_clk = __clk_get_hw(dd->clk_bypass); } else { rate = omap4_dpll_regm4xen_round_rate(hw, rate, best_parent_rate); - *best_parent_clk = dd->clk_ref; + *best_parent_clk = __clk_get_hw(dd->clk_ref); } *best_parent_rate = rate; diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 74e5341463c9..55ef529a0dbf 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -264,7 +264,7 @@ int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw, long omap3_noncore_dpll_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk); + struct clk_hw **best_parent_clk); unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw, unsigned long parent_rate); long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw, @@ -273,7 +273,7 @@ long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw, long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, unsigned long rate, unsigned long *best_parent_rate, - struct clk **best_parent_clk); + struct clk_hw **best_parent_clk); u8 omap2_init_dpll_parent(struct clk_hw *hw); unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate); long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, -- cgit v1.2.2 From 83ccc4670477e7722d4654ca44b4b7004fcaada9 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Fri, 12 Dec 2014 15:22:01 +0200 Subject: ARM: OMAP3: clock: fix boot breakage in legacy mode The new usage of determine_rate and set_rate_and_parent calls for OMAP DPLLs assumes the DPLLs must have two parents defined, even if it is the same clock. Legacy clock data did not fullfill this requirement and caused a boot crash. Fixed by adding the missing parent information to the DPLL clocks. Signed-off-by: Tero Kristo Fixes: 2e1a7b014f ("ARM: OMAP3+: DPLL: use determine_rate() and...") Cc: Paul Walmsley Acked-by: Tony Lindgren Tested-by: Kevin Hilman Reported-by: Kevin Hilman Signed-off-by: Michael Turquette --- arch/arm/mach-omap2/cclock3xxx_data.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c index 5c5ebb4db5f7..644ff3231bb8 100644 --- a/arch/arm/mach-omap2/cclock3xxx_data.c +++ b/arch/arm/mach-omap2/cclock3xxx_data.c @@ -111,6 +111,7 @@ static struct clk dpll3_ck; static const char *dpll3_ck_parent_names[] = { "sys_ck", + "sys_ck", }; static const struct clk_ops dpll3_ck_ops = { @@ -733,6 +734,10 @@ static const char *corex2_fck_parent_names[] = { DEFINE_STRUCT_CLK_HW_OMAP(corex2_fck, NULL); DEFINE_STRUCT_CLK(corex2_fck, corex2_fck_parent_names, core_ck_ops); +static const char *cpefuse_fck_parent_names[] = { + "sys_ck", +}; + static struct clk cpefuse_fck; static struct clk_hw_omap cpefuse_fck_hw = { @@ -744,7 +749,7 @@ static struct clk_hw_omap cpefuse_fck_hw = { .clkdm_name = "core_l4_clkdm", }; -DEFINE_STRUCT_CLK(cpefuse_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(cpefuse_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk csi2_96m_fck; @@ -775,7 +780,7 @@ static struct clk_hw_omap d2d_26m_fck_hw = { .clkdm_name = "d2d_clkdm", }; -DEFINE_STRUCT_CLK(d2d_26m_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(d2d_26m_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk des1_ick; @@ -1046,7 +1051,7 @@ static struct clk_hw_omap dss2_alwon_fck_hw = { .clkdm_name = "dss_clkdm", }; -DEFINE_STRUCT_CLK(dss2_alwon_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(dss2_alwon_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk dss_96m_fck; @@ -1368,7 +1373,7 @@ DEFINE_STRUCT_CLK(gpio1_dbck, gpio1_dbck_parent_names, aes2_ick_ops); static struct clk wkup_l4_ick; DEFINE_STRUCT_CLK_HW_OMAP(wkup_l4_ick, "wkup_clkdm"); -DEFINE_STRUCT_CLK(wkup_l4_ick, dpll3_ck_parent_names, core_l4_ick_ops); +DEFINE_STRUCT_CLK(wkup_l4_ick, cpefuse_fck_parent_names, core_l4_ick_ops); static struct clk gpio1_ick; @@ -1862,7 +1867,7 @@ static struct clk_hw_omap hecc_ck_hw = { .clkdm_name = "core_l3_clkdm", }; -DEFINE_STRUCT_CLK(hecc_ck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(hecc_ck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk hsotgusb_fck_am35xx; @@ -1875,7 +1880,7 @@ static struct clk_hw_omap hsotgusb_fck_am35xx_hw = { .clkdm_name = "core_l3_clkdm", }; -DEFINE_STRUCT_CLK(hsotgusb_fck_am35xx, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(hsotgusb_fck_am35xx, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk hsotgusb_ick_3430es1; @@ -2411,7 +2416,7 @@ static struct clk_hw_omap modem_fck_hw = { .clkdm_name = "d2d_clkdm", }; -DEFINE_STRUCT_CLK(modem_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(modem_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk mspro_fck; @@ -2710,7 +2715,7 @@ static struct clk_hw_omap sr1_fck_hw = { .clkdm_name = "wkup_clkdm", }; -DEFINE_STRUCT_CLK(sr1_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(sr1_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk sr2_fck; @@ -2724,7 +2729,7 @@ static struct clk_hw_omap sr2_fck_hw = { .clkdm_name = "wkup_clkdm", }; -DEFINE_STRUCT_CLK(sr2_fck, dpll3_ck_parent_names, aes2_ick_ops); +DEFINE_STRUCT_CLK(sr2_fck, cpefuse_fck_parent_names, aes2_ick_ops); static struct clk sr_l4_ick; -- cgit v1.2.2 From f1e9203e2366164b832d8a6ce10134de8c575178 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 5 Dec 2014 15:15:34 +0100 Subject: clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated Audio subsystem clocks are located in separate block. On Exynos 5420 if clock for this block (from main clock domain) 'mau_epll' is gated then any read or write to audss registers will block. This kind of boot hang was observed on Arndale Octa and Peach Pi/Pit after introducing runtime PM to pl330 DMA driver. After that commit the 'mau_epll' was gated, because the "amba" clock was disabled and there were no more users of mau_epll. The system hang on one of steps: 1. Disabling unused clocks from audss block. 2. During audss GPIO setup (just before probing i2s0 because samsung_pinmux_setup() tried to access memory from audss block which was gated. Add a workaround for this by enabling the 'mau_epll' clock in probe. Signed-off-by: Krzysztof Kozlowski Acked-by: Sylwester Nawrocki Tested-by: Javier Martinez Canillas Tested-by: Kevin Hilman Signed-off-by: Michael Turquette --- drivers/clk/samsung/clk-exynos-audss.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index b50469faf70c..f7eff82738ab 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -29,6 +29,13 @@ static DEFINE_SPINLOCK(lock); static struct clk **clk_table; static void __iomem *reg_base; static struct clk_onecell_data clk_data; +/* + * On Exynos5420 this will be a clock which has to be enabled before any + * access to audss registers. Typically a child of EPLL. + * + * On other platforms this will be -ENODEV. + */ +static struct clk *epll; #define ASS_CLK_SRC 0x0 #define ASS_CLK_DIV 0x4 @@ -98,6 +105,8 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to map audss registers\n"); return PTR_ERR(reg_base); } + /* EPLL don't have to be enabled for boards other than Exynos5420 */ + epll = ERR_PTR(-ENODEV); clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) * EXYNOS_AUDSS_MAX_CLKS, @@ -115,8 +124,20 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) pll_in = devm_clk_get(&pdev->dev, "pll_in"); if (!IS_ERR(pll_ref)) mout_audss_p[0] = __clk_get_name(pll_ref); - if (!IS_ERR(pll_in)) + if (!IS_ERR(pll_in)) { mout_audss_p[1] = __clk_get_name(pll_in); + + if (variant == TYPE_EXYNOS5420) { + epll = pll_in; + + ret = clk_prepare_enable(epll); + if (ret) { + dev_err(&pdev->dev, + "failed to prepare the epll clock\n"); + return ret; + } + } + } clk_table[EXYNOS_MOUT_AUDSS] = clk_register_mux(NULL, "mout_audss", mout_audss_p, ARRAY_SIZE(mout_audss_p), CLK_SET_RATE_NO_REPARENT, @@ -203,6 +224,9 @@ unregister: clk_unregister(clk_table[i]); } + if (!IS_ERR(epll)) + clk_disable_unprepare(epll); + return ret; } @@ -221,6 +245,9 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) clk_unregister(clk_table[i]); } + if (!IS_ERR(epll)) + clk_disable_unprepare(epll); + return 0; } -- cgit v1.2.2