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authorXing Zheng <zhengxing@rock-chips.com>2015-11-05 02:33:58 -0500
committerHeiko Stuebner <heiko@sntech.de>2015-11-23 15:59:19 -0500
commit5190c08b29899131a183ea5802b9397918cca1ae (patch)
tree3a052d259e110217fd4ef284395cfd28e68eb46e /drivers/clk/rockchip/clk-rk3036.c
parent9c4d6e55377bc9232a33c7388accb5bd10771eba (diff)
clk: rockchip: add clock controller for rk3036
Add the clock tree definition for the new rk3036 SoC. Signed-off-by: Xing Zheng <zhengxing@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'drivers/clk/rockchip/clk-rk3036.c')
-rw-r--r--drivers/clk/rockchip/clk-rk3036.c478
1 files changed, 478 insertions, 0 deletions
diff --git a/drivers/clk/rockchip/clk-rk3036.c b/drivers/clk/rockchip/clk-rk3036.c
new file mode 100644
index 000000000000..75553af3dc39
--- /dev/null
+++ b/drivers/clk/rockchip/clk-rk3036.c
@@ -0,0 +1,478 @@
1/*
2 * Copyright (c) 2014 MundoReader S.L.
3 * Author: Heiko Stuebner <heiko@sntech.de>
4 *
5 * Copyright (c) 2015 Rockchip Electronics Co. Ltd.
6 * Author: Xing Zheng <zhengxing@rock-chips.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19#include <linux/clk-provider.h>
20#include <linux/of.h>
21#include <linux/of_address.h>
22#include <linux/syscore_ops.h>
23#include <dt-bindings/clock/rk3036-cru.h>
24#include "clk.h"
25
26#define RK3036_GRF_SOC_STATUS0 0x14c
27
28enum rk3036_plls {
29 apll, dpll, gpll,
30};
31
32static struct rockchip_pll_rate_table rk3036_pll_rates[] = {
33 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */
34 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0),
35 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0),
36 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0),
37 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0),
38 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0),
39 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0),
40 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0),
41 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0),
42 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0),
43 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0),
44 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0),
45 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0),
46 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0),
47 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0),
48 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0),
49 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0),
50 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0),
51 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0),
52 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0),
53 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0),
54 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0),
55 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0),
56 RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0),
57 RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0),
58 RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0),
59 RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0),
60 RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0),
61 RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0),
62 RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0),
63 RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0),
64 RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0),
65 RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0),
66 RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0),
67 RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0),
68 RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0),
69 RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0),
70 RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0),
71 RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0),
72 RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0),
73 RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0),
74 RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0),
75 RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0),
76 { /* sentinel */ },
77};
78
79#define RK3036_DIV_CPU_MASK 0x1f
80#define RK3036_DIV_CPU_SHIFT 8
81
82#define RK3036_DIV_PERI_MASK 0xf
83#define RK3036_DIV_PERI_SHIFT 0
84#define RK3036_DIV_ACLK_MASK 0x7
85#define RK3036_DIV_ACLK_SHIFT 4
86#define RK3036_DIV_HCLK_MASK 0x3
87#define RK3036_DIV_HCLK_SHIFT 8
88#define RK3036_DIV_PCLK_MASK 0x7
89#define RK3036_DIV_PCLK_SHIFT 12
90
91#define RK3036_CLKSEL1(_core_periph_div) \
92 { \
93 .reg = RK2928_CLKSEL_CON(1), \
94 .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \
95 RK3036_DIV_PERI_SHIFT) \
96 }
97
98#define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \
99 { \
100 .prate = _prate, \
101 .divs = { \
102 RK3036_CLKSEL1(_core_periph_div), \
103 }, \
104 }
105
106static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = {
107 RK3036_CPUCLK_RATE(816000000, 4),
108 RK3036_CPUCLK_RATE(600000000, 4),
109 RK3036_CPUCLK_RATE(312000000, 4),
110};
111
112static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = {
113 .core_reg = RK2928_CLKSEL_CON(0),
114 .div_core_shift = 0,
115 .div_core_mask = 0x1f,
116 .mux_core_shift = 7,
117};
118
119PNAME(mux_pll_p) = { "xin24m", "xin24m" };
120
121PNAME(mux_armclk_p) = { "apll", "gpll_armclk" };
122PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" };
123PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" };
124PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" };
125PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" };
126
127PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll" "usb480m" };
128
129PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" };
130PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" };
131PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" };
132PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" };
133PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" };
134PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" };
135PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" };
136PNAME(mux_mac_p) = { "mac_pll_src", "ext_gmac" };
137PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_cru" };
138
139static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = {
140 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0),
141 RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates),
142 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4),
143 RK2928_MODE_CON, 4, 4, 0, NULL),
144 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12),
145 RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates),
146};
147
148#define MFLAGS CLK_MUX_HIWORD_MASK
149#define DFLAGS CLK_DIVIDER_HIWORD_MASK
150#define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE)
151
152static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = {
153 /*
154 * Clock-Architecture Diagram 1
155 */
156
157 GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED,
158 RK2928_CLKGATE_CON(0), 6, GFLAGS),
159
160 /*
161 * Clock-Architecture Diagram 2
162 */
163
164 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
165 RK2928_CLKGATE_CON(0), 2, GFLAGS),
166 GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
167 RK2928_CLKGATE_CON(0), 8, GFLAGS),
168 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED,
169 RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
170
171 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED,
172 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
173 RK2928_CLKGATE_CON(0), 7, GFLAGS),
174 COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED,
175 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
176 RK2928_CLKGATE_CON(0), 7, GFLAGS),
177
178 GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS),
179 GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS),
180 COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0,
181 RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS),
182 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
183 RK2928_CLKGATE_CON(0), 3, GFLAGS),
184 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
185 RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
186 RK2928_CLKGATE_CON(0), 5, GFLAGS),
187 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED,
188 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY,
189 RK2928_CLKGATE_CON(0), 4, GFLAGS),
190
191 COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0,
192 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS,
193 RK2928_CLKGATE_CON(2), 0, GFLAGS),
194
195 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
196 RK2928_CLKGATE_CON(2), 1, GFLAGS),
197 DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
198 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
199 GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0,
200 RK2928_CLKGATE_CON(2), 3, GFLAGS),
201 DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED,
202 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
203 GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0,
204 RK2928_CLKGATE_CON(2), 2, GFLAGS),
205
206 COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED,
207 RK2928_CLKSEL_CON(2), 4, 1, DFLAGS,
208 RK2928_CLKGATE_CON(1), 0, GFLAGS),
209 COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED,
210 RK2928_CLKSEL_CON(2), 5, 1, DFLAGS,
211 RK2928_CLKGATE_CON(1), 1, GFLAGS),
212 COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED,
213 RK2928_CLKSEL_CON(2), 6, 1, DFLAGS,
214 RK2928_CLKGATE_CON(2), 4, GFLAGS),
215 COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED,
216 RK2928_CLKSEL_CON(2), 7, 1, DFLAGS,
217 RK2928_CLKGATE_CON(2), 5, GFLAGS),
218
219 MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
220 RK2928_CLKSEL_CON(13), 10, 2, MFLAGS),
221 COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0,
222 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
223 RK2928_CLKGATE_CON(1), 8, GFLAGS),
224 COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0,
225 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
226 RK2928_CLKGATE_CON(1), 8, GFLAGS),
227 COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0,
228 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS,
229 RK2928_CLKGATE_CON(1), 8, GFLAGS),
230 COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT,
231 RK2928_CLKSEL_CON(17), 0,
232 RK2928_CLKGATE_CON(1), 9, GFLAGS),
233 COMPOSITE_FRAC(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT,
234 RK2928_CLKSEL_CON(18), 0,
235 RK2928_CLKGATE_CON(1), 11, GFLAGS),
236 COMPOSITE_FRAC(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT,
237 RK2928_CLKSEL_CON(19), 0,
238 RK2928_CLKGATE_CON(1), 13, GFLAGS),
239 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT,
240 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS),
241 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT,
242 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS),
243 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT,
244 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS),
245
246 COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0,
247 RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS,
248 RK2928_CLKGATE_CON(3), 11, GFLAGS),
249
250 COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0,
251 RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS,
252 RK2928_CLKGATE_CON(10), 6, GFLAGS),
253
254 COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0,
255 RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
256 RK2928_CLKGATE_CON(1), 4, GFLAGS),
257 COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0,
258 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
259 RK2928_CLKGATE_CON(0), 11, GFLAGS),
260 COMPOSITE(SCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0,
261 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS,
262 RK2928_CLKGATE_CON(3), 2, GFLAGS),
263
264 COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0,
265 RK2928_CLKSEL_CON(12), 8, 2, DFLAGS,
266 RK2928_CLKGATE_CON(2), 11, GFLAGS),
267 DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0,
268 RK2928_CLKSEL_CON(11), 0, 7, DFLAGS),
269
270 COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0,
271 RK2928_CLKSEL_CON(12), 10, 2, DFLAGS,
272 RK2928_CLKGATE_CON(2), 13, GFLAGS),
273 DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0,
274 RK2928_CLKSEL_CON(11), 8, 7, DFLAGS),
275
276 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
277 RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS,
278 RK2928_CLKGATE_CON(2), 14, GFLAGS),
279
280 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1),
281 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0),
282
283 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1),
284 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0),
285
286 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1),
287 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0),
288
289 COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0,
290 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS,
291 RK2928_CLKGATE_CON(0), 9, GFLAGS),
292 COMPOSITE_FRAC(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT,
293 RK2928_CLKSEL_CON(7), 0,
294 RK2928_CLKGATE_CON(0), 10, GFLAGS),
295 MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT,
296 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS),
297 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0,
298 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS,
299 RK2928_CLKGATE_CON(0), 13, GFLAGS),
300 GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT,
301 RK2928_CLKGATE_CON(0), 14, GFLAGS),
302
303 COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0,
304 RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS,
305 RK2928_CLKGATE_CON(2), 10, GFLAGS),
306 COMPOSITE_FRAC(0, "spdif_frac", "spdif_src", 0,
307 RK2928_CLKSEL_CON(9), 0,
308 RK2928_CLKGATE_CON(2), 12, GFLAGS),
309 MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0,
310 RK2928_CLKSEL_CON(5), 8, 2, MFLAGS),
311
312 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED,
313 RK2928_CLKGATE_CON(1), 5, GFLAGS),
314
315 COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0,
316 RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS,
317 RK2928_CLKGATE_CON(3), 13, GFLAGS),
318
319 COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0,
320 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS,
321 RK2928_CLKGATE_CON(2), 9, GFLAGS),
322
323 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0,
324 RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS,
325 RK2928_CLKGATE_CON(10), 4, GFLAGS),
326
327 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0,
328 RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS,
329 RK2928_CLKGATE_CON(10), 5, GFLAGS),
330
331 COMPOSITE_NOGATE(0, "mac_pll_src", mux_pll_src_3plls_p, 0,
332 RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 4, 5, DFLAGS),
333 MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT,
334 RK2928_CLKSEL_CON(21), 3, 1, MFLAGS),
335
336 COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0,
337 RK2928_CLKSEL_CON(21), 9, 5, DFLAGS,
338 RK2928_CLKGATE_CON(2), 6, GFLAGS),
339
340 MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0,
341 RK2928_CLKSEL_CON(31), 0, 1, MFLAGS),
342
343 /*
344 * Clock-Architecture Diagram 3
345 */
346
347 /* aclk_cpu gates */
348 GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
349 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
350
351 /* hclk_cpu gates */
352 GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS),
353
354 /* pclk_cpu gates */
355 GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
356 GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
357 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS),
358 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS),
359
360 /* aclk_vio gates */
361 GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(6), 13, GFLAGS),
362 GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS),
363
364 GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(6), 12, GFLAGS),
365 GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS),
366
367 /* hclk_video gates */
368 GATE(HCLK_VCODEC, "hclk_vcodec", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(3), 12, GFLAGS),
369
370 /* xin24m gates */
371 GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS),
372 GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS),
373
374 /* aclk_peri gates */
375 GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
376 GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
377 GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
378 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS),
379
380 /* hclk_peri gates */
381 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS),
382 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS),
383 GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS),
384 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS),
385 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS),
386 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS),
387 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS),
388 GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS),
389 GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS),
390 GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS),
391 GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS),
392 GATE(0, "hclk_mac", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 15, GFLAGS),
393
394 /* pclk_peri gates */
395 GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
396 GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS),
397 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS),
398 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS),
399 GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
400 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
401 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS),
402 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS),
403 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
404 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS),
405 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS),
406 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
407 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS),
408 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS),
409 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS),
410};
411
412static const char *const rk3036_critical_clocks[] __initconst = {
413 "aclk_cpu",
414 "aclk_peri",
415 "hclk_peri",
416 "pclk_peri",
417};
418
419static void __init rk3036_clk_init(struct device_node *np)
420{
421 void __iomem *reg_base;
422 struct clk *clk;
423
424 reg_base = of_iomap(np, 0);
425 if (!reg_base) {
426 pr_err("%s: could not map cru region\n", __func__);
427 return;
428 }
429
430 rockchip_clk_init(np, reg_base, CLK_NR_CLKS);
431
432 /* xin12m is created by an cru-internal divider */
433 clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2);
434 if (IS_ERR(clk))
435 pr_warn("%s: could not register clock xin12m: %ld\n",
436 __func__, PTR_ERR(clk));
437
438 clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1);
439 if (IS_ERR(clk))
440 pr_warn("%s: could not register clock usb480m: %ld\n",
441 __func__, PTR_ERR(clk));
442
443 clk = clk_register_fixed_factor(NULL, "ddrphy", "ddrphy2x", 0, 1, 2);
444 if (IS_ERR(clk))
445 pr_warn("%s: could not register clock ddrphy: %ld\n",
446 __func__, PTR_ERR(clk));
447
448 clk = clk_register_fixed_factor(NULL, "hclk_vcodec_pre",
449 "aclk_vcodec", 0, 1, 4);
450 if (IS_ERR(clk))
451 pr_warn("%s: could not register clock hclk_vcodec_pre: %ld\n",
452 __func__, PTR_ERR(clk));
453
454 clk = clk_register_fixed_factor(NULL, "sclk_macref_out",
455 "hclk_peri_src", 0, 1, 2);
456 if (IS_ERR(clk))
457 pr_warn("%s: could not register clock sclk_macref_out: %ld\n",
458 __func__, PTR_ERR(clk));
459
460 rockchip_clk_register_plls(rk3036_pll_clks,
461 ARRAY_SIZE(rk3036_pll_clks),
462 RK3036_GRF_SOC_STATUS0);
463 rockchip_clk_register_branches(rk3036_clk_branches,
464 ARRAY_SIZE(rk3036_clk_branches));
465 rockchip_clk_protect_critical(rk3036_critical_clocks,
466 ARRAY_SIZE(rk3036_critical_clocks));
467
468 rockchip_clk_register_armclk(ARMCLK, "armclk",
469 mux_armclk_p, ARRAY_SIZE(mux_armclk_p),
470 &rk3036_cpuclk_data, rk3036_cpuclk_rates,
471 ARRAY_SIZE(rk3036_cpuclk_rates));
472
473 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0),
474 ROCKCHIP_SOFTRST_HIWORD_MASK);
475
476 rockchip_register_restart_notifier(RK2928_GLB_SRST_FST);
477}
478CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init);
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-19 03:41:00 -0500