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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-07 23:27:30 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-07 23:27:30 -0400
commit1a5700bc2d10cd379a795fd2bb377a190af5acd4 (patch)
treee9f754cbc34020dd23c1d2e3e45fb6890ba7593c
parenta68a7509d3af8ee458d32b2416b0c2aaf2a4a7e3 (diff)
parent3cbcb16095f916f50a5a55066fcc4be06946ce1e (diff)
Merge tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux into next
Pull clock framework updates from Mike Turquette: "The clock framework changes for 3.16 are pretty typical: mostly clock driver additions and fixes. There are additions to the clock core code for some of the basic types (e.g. the common divider type has some fixes and featured added to it). One minor annoyance is a last-minute dependency that wasn't handled quite right. Commit ba0fae3b06a6 ("clk: berlin: add core clock driver for BG2/BG2CD") in this pull request depends on include/dt-bindings/clock/berlin2.h, which is already in your tree via the arm-soc pull request. Building for the berlin platform will break when the clk tree is built on it's own, but merged into your master branch everything should be fine" * tag 'clk-for-linus-3.16' of git://git.linaro.org/people/mike.turquette/linux: (75 commits) mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCs clk: export __clk_round_rate for providers clk: versatile: free icst on error return clk: qcom: Return error pointers for unimplemented clocks clk: qcom: Support msm8974pro global clock control hardware clk: qcom: Properly support display clocks on msm8974 clk: qcom: Support display RCG clocks clk: qcom: Return highest rate when round_rate() exceeds plan clk: qcom: Fix mmcc-8974's PLL configurations clk: qcom: Fix clk_rcg2_is_enabled() check clk: berlin: add core clock driver for BG2Q clk: berlin: add core clock driver for BG2/BG2CD clk: berlin: add driver for BG2x complex divider cells clk: berlin: add driver for BG2x simple PLLs clk: berlin: add driver for BG2x audio/video PLL clk: st: Terminate of match table clk/exynos4: Fix compilation warning ARM: shmobile: r8a7779: Add clock index macros for DT sources clk: divider: Fix overflow in clk_divider_bestdiv clk: u300: Terminate of match table ...
Diffstat
-rw-r--r--Documentation/clk.txt16
-rw-r--r--Documentation/devicetree/bindings/clock/bcm-kona-clock.txt116
-rw-r--r--Documentation/devicetree/bindings/clock/clock-bindings.txt9
-rw-r--r--Documentation/devicetree/bindings/clock/fixed-clock.txt1
-rw-r--r--Documentation/devicetree/bindings/clock/hix5hd2-clock.txt31
-rw-r--r--Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt29
-rw-r--r--Documentation/devicetree/bindings/clock/mvebu-core-clock.txt8
-rw-r--r--Documentation/devicetree/bindings/clock/qcom,gcc.txt3
-rw-r--r--Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt1
-rw-r--r--Documentation/devicetree/bindings/clock/renesas,r8a7740-cpg-clocks.txt41
-rw-r--r--Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt27
-rw-r--r--Documentation/devicetree/bindings/mmc/sunxi-mmc.txt43
-rw-r--r--MAINTAINERS5
-rw-r--r--arch/arm/boot/dts/bcm21664.dtsi164
-rw-r--r--drivers/clk/Kconfig8
-rw-r--r--drivers/clk/Makefile3
-rw-r--r--drivers/clk/bcm/Kconfig2
-rw-r--r--drivers/clk/bcm/Makefile1
-rw-r--r--drivers/clk/bcm/clk-bcm21664.c290
-rw-r--r--drivers/clk/bcm/clk-bcm281xx.c231
-rw-r--r--drivers/clk/bcm/clk-kona-setup.c229
-rw-r--r--drivers/clk/bcm/clk-kona.c266
-rw-r--r--drivers/clk/bcm/clk-kona.h160
-rw-r--r--drivers/clk/berlin/Makefile4
-rw-r--r--drivers/clk/berlin/berlin2-avpll.c393
-rw-r--r--drivers/clk/berlin/berlin2-avpll.h36
-rw-r--r--drivers/clk/berlin/berlin2-div.c265
-rw-r--r--drivers/clk/berlin/berlin2-div.h89
-rw-r--r--drivers/clk/berlin/berlin2-pll.c117
-rw-r--r--drivers/clk/berlin/berlin2-pll.h37
-rw-r--r--drivers/clk/berlin/bg2.c691
-rw-r--r--drivers/clk/berlin/bg2q.c389
-rw-r--r--drivers/clk/berlin/common.h29
-rw-r--r--drivers/clk/clk-axm5516.c615
-rw-r--r--drivers/clk/clk-divider.c93
-rw-r--r--drivers/clk/clk-s2mps11.c88
-rw-r--r--drivers/clk/clk-si570.c2
-rw-r--r--drivers/clk/clk-u300.c1
-rw-r--r--drivers/clk/clk.c47
-rw-r--r--drivers/clk/clk.h1
-rw-r--r--drivers/clk/clkdev.c34
-rw-r--r--drivers/clk/hisilicon/Makefile1
-rw-r--r--drivers/clk/hisilicon/clk-hix5hd2.c101
-rw-r--r--drivers/clk/hisilicon/clk.c41
-rw-r--r--drivers/clk/hisilicon/clk.h3
-rw-r--r--drivers/clk/mvebu/Kconfig4
-rw-r--r--drivers/clk/mvebu/Makefile1
-rw-r--r--drivers/clk/mvebu/orion.c210
-rw-r--r--drivers/clk/qcom/Kconfig4
-rw-r--r--drivers/clk/qcom/Makefile1
-rw-r--r--drivers/clk/qcom/clk-rcg.h3
-rw-r--r--drivers/clk/qcom/clk-rcg2.c304
-rw-r--r--drivers/clk/qcom/common.c101
-rw-r--r--drivers/clk/qcom/common.h34
-rw-r--r--drivers/clk/qcom/gcc-msm8660.c77
-rw-r--r--drivers/clk/qcom/gcc-msm8960.c109
-rw-r--r--drivers/clk/qcom/gcc-msm8974.c207
-rw-r--r--drivers/clk/qcom/mmcc-msm8960.c78
-rw-r--r--drivers/clk/qcom/mmcc-msm8974.c198
-rw-r--r--drivers/clk/samsung/clk-exynos4.c4
-rw-r--r--drivers/clk/shmobile/Makefile2
-rw-r--r--drivers/clk/shmobile/clk-mstp.c2
-rw-r--r--drivers/clk/shmobile/clk-r8a7740.c199
-rw-r--r--drivers/clk/shmobile/clk-r8a7779.c180
-rw-r--r--drivers/clk/socfpga/clk-gate.c1
-rw-r--r--drivers/clk/socfpga/clk-periph.c22
-rw-r--r--drivers/clk/socfpga/clk.h4
-rw-r--r--drivers/clk/st/clkgen-pll.c1
-rw-r--r--drivers/clk/sunxi/clk-factors.c36
-rw-r--r--drivers/clk/sunxi/clk-sunxi.c37
-rw-r--r--drivers/clk/tegra/clk-id.h1
-rw-r--r--drivers/clk/tegra/clk-pll.c33
-rw-r--r--drivers/clk/tegra/clk-tegra-periph.c10
-rw-r--r--drivers/clk/tegra/clk-tegra114.c22
-rw-r--r--drivers/clk/tegra/clk-tegra124.c21
-rw-r--r--drivers/clk/versatile/clk-icst.c2
-rw-r--r--drivers/clk/versatile/clk-impd1.c38
-rw-r--r--drivers/clk/zynq/clkc.c12
-rw-r--r--drivers/mmc/host/Kconfig7
-rw-r--r--drivers/mmc/host/Makefile1
-rw-r--r--drivers/mmc/host/sunxi-mmc.c1049
-rw-r--r--include/dt-bindings/clock/bcm21664.h62
-rw-r--r--include/dt-bindings/clock/bcm281xx.h12
-rw-r--r--include/dt-bindings/clock/hix5hd2-clock.h58
-rw-r--r--include/dt-bindings/clock/qcom,gcc-msm8960.h7
-rw-r--r--include/dt-bindings/clock/qcom,gcc-msm8974.h4
-rw-r--r--include/dt-bindings/clock/r8a7779-clock.h64
-rw-r--r--include/dt-bindings/clock/tegra114-car.h3
-rw-r--r--include/dt-bindings/clock/tegra124-car.h3
-rw-r--r--include/dt-bindings/reset/qcom,gcc-msm8960.h2
-rw-r--r--include/linux/clk-provider.h127
-rw-r--r--include/linux/clk/shmobile.h3
-rw-r--r--include/linux/clk/sunxi.h22
93 files changed, 7218 insertions, 925 deletions
diff --git a/Documentation/clk.txt b/Documentation/clk.txt
index c9c399af7c08..1fee72f4d331 100644
--- a/Documentation/clk.txt
+++ b/Documentation/clk.txt
@@ -68,21 +68,27 @@ the operations defined in clk.h:
68 int (*is_enabled)(struct clk_hw *hw); 68 int (*is_enabled)(struct clk_hw *hw);
69 unsigned long (*recalc_rate)(struct clk_hw *hw, 69 unsigned long (*recalc_rate)(struct clk_hw *hw,
70 unsigned long parent_rate); 70 unsigned long parent_rate);
71 long (*round_rate)(struct clk_hw *hw, unsigned long, 71 long (*round_rate)(struct clk_hw *hw,
72 unsigned long *); 72 unsigned long rate,
73 unsigned long *parent_rate);
73 long (*determine_rate)(struct clk_hw *hw, 74 long (*determine_rate)(struct clk_hw *hw,
74 unsigned long rate, 75 unsigned long rate,
75 unsigned long *best_parent_rate, 76 unsigned long *best_parent_rate,
76 struct clk **best_parent_clk); 77 struct clk **best_parent_clk);
77 int (*set_parent)(struct clk_hw *hw, u8 index); 78 int (*set_parent)(struct clk_hw *hw, u8 index);
78 u8 (*get_parent)(struct clk_hw *hw); 79 u8 (*get_parent)(struct clk_hw *hw);
79 int (*set_rate)(struct clk_hw *hw, unsigned long); 80 int (*set_rate)(struct clk_hw *hw,
81 unsigned long rate,
82 unsigned long parent_rate);
80 int (*set_rate_and_parent)(struct clk_hw *hw, 83 int (*set_rate_and_parent)(struct clk_hw *hw,
81 unsigned long rate, 84 unsigned long rate,
82 unsigned long parent_rate, u8 index); 85 unsigned long parent_rate,
86 u8 index);
83 unsigned long (*recalc_accuracy)(struct clk_hw *hw, 87 unsigned long (*recalc_accuracy)(struct clk_hw *hw,
84 unsigned long parent_accuracy); 88 unsigned long parent_accuracy);
85 void (*init)(struct clk_hw *hw); 89 void (*init)(struct clk_hw *hw);
90 int (*debug_init)(struct clk_hw *hw,
91 struct dentry *dentry);
86 }; 92 };
87 93
88 Part 3 - hardware clk implementations 94 Part 3 - hardware clk implementations
diff --git a/Documentation/devicetree/bindings/clock/bcm-kona-clock.txt b/Documentation/devicetree/bindings/clock/bcm-kona-clock.txt
index 56d1f4961075..5286e260fcae 100644
--- a/Documentation/devicetree/bindings/clock/bcm-kona-clock.txt
+++ b/Documentation/devicetree/bindings/clock/bcm-kona-clock.txt
@@ -10,12 +10,12 @@ This binding uses the common clock binding:
10 10
11Required properties: 11Required properties:
12- compatible 12- compatible
13 Shall have one of the following values: 13 Shall have a value of the form "brcm,<model>-<which>-ccu",
14 - "brcm,bcm11351-root-ccu" 14 where <model> is a Broadcom SoC model number and <which> is
15 - "brcm,bcm11351-aon-ccu" 15 the name of a defined CCU. For example:
16 - "brcm,bcm11351-hub-ccu" 16 "brcm,bcm11351-root-ccu"
17 - "brcm,bcm11351-master-ccu" 17 The compatible strings used for each supported SoC family
18 - "brcm,bcm11351-slave-ccu" 18 are defined below.
19- reg 19- reg
20 Shall define the base and range of the address space 20 Shall define the base and range of the address space
21 containing clock control registers 21 containing clock control registers
@@ -26,12 +26,48 @@ Required properties:
26 Shall be an ordered list of strings defining the names of 26 Shall be an ordered list of strings defining the names of
27 the clocks provided by the CCU. 27 the clocks provided by the CCU.
28 28
29Device tree example:
30
31 slave_ccu: slave_ccu {
32 compatible = "brcm,bcm11351-slave-ccu";
33 reg = <0x3e011000 0x0f00>;
34 #clock-cells = <1>;
35 clock-output-names = "uartb",
36 "uartb2",
37 "uartb3",
38 "uartb4";
39 };
40
41 ref_crystal_clk: ref_crystal {
42 #clock-cells = <0>;
43 compatible = "fixed-clock";
44 clock-frequency = <26000000>;
45 };
46
47 uart@3e002000 {
48 compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
49 status = "disabled";
50 reg = <0x3e002000 0x1000>;
51 clocks = <&slave_ccu BCM281XX_SLAVE_CCU_UARTB3>;
52 interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
53 reg-shift = <2>;
54 reg-io-width = <4>;
55 };
56
57BCM281XX family
58---------------
59CCU compatible string values for SoCs in the BCM281XX family are:
60 "brcm,bcm11351-root-ccu"
61 "brcm,bcm11351-aon-ccu"
62 "brcm,bcm11351-hub-ccu"
63 "brcm,bcm11351-master-ccu"
64 "brcm,bcm11351-slave-ccu"
29 65
30BCM281XX family SoCs use Kona CCUs. The following table defines 66The following table defines the set of CCUs and clock specifiers for
31the set of CCUs and clock specifiers for BCM281XX clocks. When 67BCM281XX family clocks. When a clock consumer references a clocks,
32a clock consumer references a clocks, its symbolic specifier 68its symbolic specifier (rather than its numeric index value) should
33(rather than its numeric index value) should be used. These 69be used. These specifiers are defined in:
34specifiers are defined in "include/dt-bindings/clock/bcm281xx.h". 70 "include/dt-bindings/clock/bcm281xx.h"
35 71
36 CCU Clock Type Index Specifier 72 CCU Clock Type Index Specifier
37 --- ----- ---- ----- --------- 73 --- ----- ---- ----- ---------
@@ -64,30 +100,40 @@ specifiers are defined in "include/dt-bindings/clock/bcm281xx.h".
64 slave pwm peri 9 BCM281XX_SLAVE_CCU_PWM 100 slave pwm peri 9 BCM281XX_SLAVE_CCU_PWM
65 101
66 102
67Device tree example: 103BCM21664 family
104---------------
105CCU compatible string values for SoCs in the BCM21664 family are:
106 "brcm,bcm21664-root-ccu"
107 "brcm,bcm21664-aon-ccu"
108 "brcm,bcm21664-master-ccu"
109 "brcm,bcm21664-slave-ccu"
68 110
69 slave_ccu: slave_ccu { 111The following table defines the set of CCUs and clock specifiers for
70 compatible = "brcm,bcm11351-slave-ccu"; 112BCM21664 family clocks. When a clock consumer references a clocks,
71 reg = <0x3e011000 0x0f00>; 113its symbolic specifier (rather than its numeric index value) should
72 #clock-cells = <1>; 114be used. These specifiers are defined in:
73 clock-output-names = "uartb", 115 "include/dt-bindings/clock/bcm21664.h"
74 "uartb2",
75 "uartb3",
76 "uartb4";
77 };
78 116
79 ref_crystal_clk: ref_crystal { 117 CCU Clock Type Index Specifier
80 #clock-cells = <0>; 118 --- ----- ---- ----- ---------
81 compatible = "fixed-clock"; 119 root frac_1m peri 0 BCM21664_ROOT_CCU_FRAC_1M
82 clock-frequency = <26000000>;
83 };
84 120
85 uart@3e002000 { 121 aon hub_timer peri 0 BCM21664_AON_CCU_HUB_TIMER
86 compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart"; 122
87 status = "disabled"; 123 master sdio1 peri 0 BCM21664_MASTER_CCU_SDIO1
88 reg = <0x3e002000 0x1000>; 124 master sdio2 peri 1 BCM21664_MASTER_CCU_SDIO2
89 clocks = <&slave_ccu BCM281XX_SLAVE_CCU_UARTB3>; 125 master sdio3 peri 2 BCM21664_MASTER_CCU_SDIO3
90 interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; 126 master sdio4 peri 3 BCM21664_MASTER_CCU_SDIO4
91 reg-shift = <2>; 127 master sdio1_sleep peri 4 BCM21664_MASTER_CCU_SDIO1_SLEEP
92 reg-io-width = <4>; 128 master sdio2_sleep peri 5 BCM21664_MASTER_CCU_SDIO2_SLEEP
93 }; 129 master sdio3_sleep peri 6 BCM21664_MASTER_CCU_SDIO3_SLEEP
130 master sdio4_sleep peri 7 BCM21664_MASTER_CCU_SDIO4_SLEEP
131
132 slave uartb peri 0 BCM21664_SLAVE_CCU_UARTB
133 slave uartb2 peri 1 BCM21664_SLAVE_CCU_UARTB2
134 slave uartb3 peri 2 BCM21664_SLAVE_CCU_UARTB3
135 slave uartb4 peri 3 BCM21664_SLAVE_CCU_UARTB4
136 slave bsc1 peri 4 BCM21664_SLAVE_CCU_BSC1
137 slave bsc2 peri 5 BCM21664_SLAVE_CCU_BSC2
138 slave bsc3 peri 6 BCM21664_SLAVE_CCU_BSC3
139 slave bsc4 peri 7 BCM21664_SLAVE_CCU_BSC4
diff --git a/Documentation/devicetree/bindings/clock/clock-bindings.txt b/Documentation/devicetree/bindings/clock/clock-bindings.txt
index 700e7aac3717..f15787817d6b 100644
--- a/Documentation/devicetree/bindings/clock/clock-bindings.txt
+++ b/Documentation/devicetree/bindings/clock/clock-bindings.txt
@@ -44,10 +44,9 @@ For example:
44 clocks by index. The names should reflect the clock output signal 44 clocks by index. The names should reflect the clock output signal
45 names for the device. 45 names for the device.
46 46
47clock-indices: If the identifyng number for the clocks in the node 47clock-indices: If the identifying number for the clocks in the node
48 is not linear from zero, then the this mapping allows 48 is not linear from zero, then this allows the mapping of
49 the mapping of identifiers into the clock-output-names 49 identifiers into the clock-output-names array.
50 array.
51 50
52For example, if we have two clocks <&oscillator 1> and <&oscillator 3>: 51For example, if we have two clocks <&oscillator 1> and <&oscillator 3>:
53 52
@@ -58,7 +57,7 @@ For example, if we have two clocks <&oscillator 1> and <&oscillator 3>:
58 clock-output-names = "clka", "clkb"; 57 clock-output-names = "clka", "clkb";
59 } 58 }
60 59
61 This ensures we do not have any empty nodes in clock-output-names 60 This ensures we do not have any empty strings in clock-output-names
62 61
63 62
64==Clock consumers== 63==Clock consumers==
diff --git a/Documentation/devicetree/bindings/clock/fixed-clock.txt b/Documentation/devicetree/bindings/clock/fixed-clock.txt
index 48ea0ad8ad46..0641a663ad69 100644
--- a/Documentation/devicetree/bindings/clock/fixed-clock.txt
+++ b/Documentation/devicetree/bindings/clock/fixed-clock.txt
@@ -12,7 +12,6 @@ Required properties:
12Optional properties: 12Optional properties:
13- clock-accuracy : accuracy of clock in ppb (parts per billion). 13- clock-accuracy : accuracy of clock in ppb (parts per billion).
14 Should be a single cell. 14 Should be a single cell.
15- gpios : From common gpio binding; gpio connection to clock enable pin.
16- clock-output-names : From common clock binding. 15- clock-output-names : From common clock binding.
17 16
18Example: 17Example:
diff --git a/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt b/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
new file mode 100644
index 000000000000..7894a64887cb
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/hix5hd2-clock.txt
@@ -0,0 +1,31 @@
1* Hisilicon Hix5hd2 Clock Controller
2
3The hix5hd2 clock controller generates and supplies clock to various
4controllers within the hix5hd2 SoC.
5
6Required Properties:
7
8- compatible: should be "hisilicon,hix5hd2-clock"
9- reg: Address and length of the register set
10- #clock-cells: Should be <1>
11
12Each clock is assigned an identifier and client nodes use this identifier
13to specify the clock which they consume.
14
15All these identifier could be found in <dt-bindings/clock/hix5hd2-clock.h>.
16
17Examples:
18 clock: clock@f8a22000 {
19 compatible = "hisilicon,hix5hd2-clock";
20 reg = <0xf8a22000 0x1000>;
21 #clock-cells = <1>;
22 };
23
24 uart0: uart@f8b00000 {
25 compatible = "arm,pl011", "arm,primecell";
26 reg = <0xf8b00000 0x1000>;
27 interrupts = <0 49 4>;
28 clocks = <&clock HIX5HD2_FIXED_83M>;
29 clock-names = "apb_pclk";
30 status = "disabled";
31 };
diff --git a/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt b/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt
new file mode 100644
index 000000000000..3ce97cfe999b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/lsi,axm5516-clks.txt
@@ -0,0 +1,29 @@
1AXM5516 clock driver bindings
2-----------------------------
3
4Required properties :
5- compatible : shall contain "lsi,axm5516-clks"
6- reg : shall contain base register location and length
7- #clock-cells : shall contain 1
8
9The consumer specifies the desired clock by having the clock ID in its "clocks"
10phandle cell. See <dt-bindings/clock/lsi,axxia-clock.h> for the list of
11supported clock IDs.
12
13Example:
14
15 clks: clock-controller@2010020000 {
16 compatible = "lsi,axm5516-clks";
17 #clock-cells = <1>;
18 reg = <0x20 0x10020000 0 0x20000>;
19 };
20
21 serial0: uart@2010080000 {
22 compatible = "arm,pl011", "arm,primecell";
23 reg = <0x20 0x10080000 0 0x1000>;
24 interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
25 clocks = <&clks AXXIA_CLK_PER>;
26 clock-names = "apb_pclk";
27 };
28 };
29
diff --git a/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
index 307a503c5db8..dc5ea5b22da9 100644
--- a/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
+++ b/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
@@ -29,6 +29,11 @@ The following is a list of provided IDs and clock names on Kirkwood and Dove:
29 2 = l2clk (L2 Cache clock derived from CPU0 clock) 29 2 = l2clk (L2 Cache clock derived from CPU0 clock)
30 3 = ddrclk (DDR controller clock derived from CPU0 clock) 30 3 = ddrclk (DDR controller clock derived from CPU0 clock)
31 31
32The following is a list of provided IDs and clock names on Orion5x:
33 0 = tclk (Internal Bus clock)
34 1 = cpuclk (CPU0 clock)
35 2 = ddrclk (DDR controller clock derived from CPU0 clock)
36
32Required properties: 37Required properties:
33- compatible : shall be one of the following: 38- compatible : shall be one of the following:
34 "marvell,armada-370-core-clock" - For Armada 370 SoC core clocks 39 "marvell,armada-370-core-clock" - For Armada 370 SoC core clocks
@@ -38,6 +43,9 @@ Required properties:
38 "marvell,dove-core-clock" - for Dove SoC core clocks 43 "marvell,dove-core-clock" - for Dove SoC core clocks
39 "marvell,kirkwood-core-clock" - for Kirkwood SoC (except mv88f6180) 44 "marvell,kirkwood-core-clock" - for Kirkwood SoC (except mv88f6180)
40 "marvell,mv88f6180-core-clock" - for Kirkwood MV88f6180 SoC 45 "marvell,mv88f6180-core-clock" - for Kirkwood MV88f6180 SoC
46 "marvell,mv88f5182-core-clock" - for Orion MV88F5182 SoC
47 "marvell,mv88f5281-core-clock" - for Orion MV88F5281 SoC
48 "marvell,mv88f6183-core-clock" - for Orion MV88F6183 SoC
41- reg : shall be the register address of the Sample-At-Reset (SAR) register 49- reg : shall be the register address of the Sample-At-Reset (SAR) register
42- #clock-cells : from common clock binding; shall be set to 1 50- #clock-cells : from common clock binding; shall be set to 1
43 51
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
index 767401f42871..9cfcb4f2bc97 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
@@ -4,9 +4,12 @@ Qualcomm Global Clock & Reset Controller Binding
4Required properties : 4Required properties :
5- compatible : shall contain only one of the following: 5- compatible : shall contain only one of the following:
6 6
7 "qcom,gcc-apq8064"
7 "qcom,gcc-msm8660" 8 "qcom,gcc-msm8660"
8 "qcom,gcc-msm8960" 9 "qcom,gcc-msm8960"
9 "qcom,gcc-msm8974" 10 "qcom,gcc-msm8974"
11 "qcom,gcc-msm8974pro"
12 "qcom,gcc-msm8974pro-ac"
10 13
11- reg : shall contain base register location and length 14- reg : shall contain base register location and length
12- #clock-cells : shall contain 1 15- #clock-cells : shall contain 1
diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt
index 6c3c0847e4fd..8a92b5fb3540 100644
--- a/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt
+++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mstp-clocks.txt
@@ -11,6 +11,7 @@ Required Properties:
11 11
12 - compatible: Must be one of the following 12 - compatible: Must be one of the following
13 - "renesas,r7s72100-mstp-clocks" for R7S72100 (RZ) MSTP gate clocks 13 - "renesas,r7s72100-mstp-clocks" for R7S72100 (RZ) MSTP gate clocks
14 - "renesas,r8a7779-mstp-clocks" for R8A7779 (R-Car H1) MSTP gate clocks
14 - "renesas,r8a7790-mstp-clocks" for R8A7790 (R-Car H2) MSTP gate clocks 15 - "renesas,r8a7790-mstp-clocks" for R8A7790 (R-Car H2) MSTP gate clocks
15 - "renesas,r8a7791-mstp-clocks" for R8A7791 (R-Car M2) MSTP gate clocks 16 - "renesas,r8a7791-mstp-clocks" for R8A7791 (R-Car M2) MSTP gate clocks
16 - "renesas,cpg-mstp-clock" for generic MSTP gate clocks 17 - "renesas,cpg-mstp-clock" for generic MSTP gate clocks
diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a7740-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,r8a7740-cpg-clocks.txt
new file mode 100644
index 000000000000..2c03302f86ed
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,r8a7740-cpg-clocks.txt
@@ -0,0 +1,41 @@
1These bindings should be considered EXPERIMENTAL for now.
2
3* Renesas R8A7740 Clock Pulse Generator (CPG)
4
5The CPG generates core clocks for the R8A7740 SoC. It includes three PLLs
6and several fixed ratio and variable ratio dividers.
7
8Required Properties:
9
10 - compatible: Must be "renesas,r8a7740-cpg-clocks"
11
12 - reg: Base address and length of the memory resource used by the CPG
13
14 - clocks: Reference to the three parent clocks
15 - #clock-cells: Must be 1
16 - clock-output-names: The names of the clocks. Supported clocks are
17 "system", "pllc0", "pllc1", "pllc2", "r", "usb24s", "i", "zg", "b",
18 "m1", "hp", "hpp", "usbp", "s", "zb", "m3", and "cp".
19
20 - renesas,mode: board-specific settings of the MD_CK* bits
21
22
23Example
24-------
25
26cpg_clocks: cpg_clocks@e6150000 {
27 compatible = "renesas,r8a7740-cpg-clocks";
28 reg = <0xe6150000 0x10000>;
29 clocks = <&extal1_clk>, <&extal2_clk>, <&extalr_clk>;
30 #clock-cells = <1>;
31 clock-output-names = "system", "pllc0", "pllc1",
32 "pllc2", "r",
33 "usb24s",
34 "i", "zg", "b", "m1", "hp",
35 "hpp", "usbp", "s", "zb", "m3",
36 "cp";
37};
38
39&cpg_clocks {
40 renesas,mode = <0x05>;
41};
diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
new file mode 100644
index 000000000000..ed3c8cb12f4e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,r8a7779-cpg-clocks.txt
@@ -0,0 +1,27 @@
1* Renesas R8A7779 Clock Pulse Generator (CPG)
2
3The CPG generates core clocks for the R8A7779. It includes one PLL and
4several fixed ratio dividers
5
6Required Properties:
7
8 - compatible: Must be "renesas,r8a7779-cpg-clocks"
9 - reg: Base address and length of the memory resource used by the CPG
10
11 - clocks: Reference to the parent clock
12 - #clock-cells: Must be 1
13 - clock-output-names: The names of the clocks. Supported clocks are "plla",
14 "z", "zs", "s", "s1", "p", "b", "out".
15
16
17Example
18-------
19
20 cpg_clocks: cpg_clocks@ffc80000 {
21 compatible = "renesas,r8a7779-cpg-clocks";
22 reg = <0 0xffc80000 0 0x30>;
23 clocks = <&extal_clk>;
24 #clock-cells = <1>;
25 clock-output-names = "plla", "z", "zs", "s", "s1", "p",
26 "b", "out";
27 };
diff --git a/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt
new file mode 100644
index 000000000000..91b3a3467150
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt
@@ -0,0 +1,43 @@
1* Allwinner sunxi MMC controller
2
3The highspeed MMC host controller on Allwinner SoCs provides an interface
4for MMC, SD and SDIO types of memory cards.
5
6Supported maximum speeds are the ones of the eMMC standard 4.5 as well
7as the speed of SD standard 3.0.
8Absolute maximum transfer rate is 200MB/s
9
10Required properties:
11 - compatible : "allwinner,sun4i-a10-mmc" or "allwinner,sun5i-a13-mmc"
12 - reg : mmc controller base registers
13 - clocks : a list with 2 phandle + clock specifier pairs
14 - clock-names : must contain "ahb" and "mmc"
15 - interrupts : mmc controller interrupt
16
17Optional properties:
18 - resets : phandle + reset specifier pair
19 - reset-names : must contain "ahb"
20 - for cd, bus-width and additional generic mmc parameters
21 please refer to mmc.txt within this directory
22
23Examples:
24 - Within .dtsi:
25 mmc0: mmc@01c0f000 {
26 compatible = "allwinner,sun5i-a13-mmc";
27 reg = <0x01c0f000 0x1000>;
28 clocks = <&ahb_gates 8>, <&mmc0_clk>;
29 clock-names = "ahb", "mod";
30 interrupts = <0 32 4>;
31 status = "disabled";
32 };
33
34 - Within dts:
35 mmc0: mmc@01c0f000 {
36 pinctrl-names = "default", "default";
37 pinctrl-0 = <&mmc0_pins_a>;
38 pinctrl-1 = <&mmc0_cd_pin_reference_design>;
39 bus-width = <4>;
40 cd-gpios = <&pio 7 1 0>; /* PH1 */
41 cd-inverted;
42 status = "okay";
43 };
diff --git a/MAINTAINERS b/MAINTAINERS
index f98da9025d7d..7ca9e1918bad 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -815,6 +815,11 @@ F: arch/arm/boot/dts/at91*.dtsi
815F: arch/arm/boot/dts/sama*.dts 815F: arch/arm/boot/dts/sama*.dts
816F: arch/arm/boot/dts/sama*.dtsi 816F: arch/arm/boot/dts/sama*.dtsi
817 817
818ARM/ATMEL AT91 Clock Support
819M: Boris Brezillon <boris.brezillon@free-electrons.com>
820S: Maintained
821F: drivers/clk/at91
822
818ARM/CALXEDA HIGHBANK ARCHITECTURE 823ARM/CALXEDA HIGHBANK ARCHITECTURE
819M: Rob Herring <robh@kernel.org> 824M: Rob Herring <robh@kernel.org>
820L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) 825L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
diff --git a/arch/arm/boot/dts/bcm21664.dtsi b/arch/arm/boot/dts/bcm21664.dtsi
index 08a44d41b672..8b366822bb43 100644
--- a/arch/arm/boot/dts/bcm21664.dtsi
+++ b/arch/arm/boot/dts/bcm21664.dtsi
@@ -14,6 +14,8 @@
14#include <dt-bindings/interrupt-controller/arm-gic.h> 14#include <dt-bindings/interrupt-controller/arm-gic.h>
15#include <dt-bindings/interrupt-controller/irq.h> 15#include <dt-bindings/interrupt-controller/irq.h>
16 16
17#include "dt-bindings/clock/bcm21664.h"
18
17#include "skeleton.dtsi" 19#include "skeleton.dtsi"
18 20
19/ { 21/ {
@@ -43,7 +45,7 @@
43 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart"; 45 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart";
44 status = "disabled"; 46 status = "disabled";
45 reg = <0x3e000000 0x118>; 47 reg = <0x3e000000 0x118>;
46 clocks = <&uartb_clk>; 48 clocks = <&slave_ccu BCM21664_SLAVE_CCU_UARTB>;
47 interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; 49 interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
48 reg-shift = <2>; 50 reg-shift = <2>;
49 reg-io-width = <4>; 51 reg-io-width = <4>;
@@ -53,7 +55,7 @@
53 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart"; 55 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart";
54 status = "disabled"; 56 status = "disabled";
55 reg = <0x3e001000 0x118>; 57 reg = <0x3e001000 0x118>;
56 clocks = <&uartb2_clk>; 58 clocks = <&slave_ccu BCM21664_SLAVE_CCU_UARTB2>;
57 interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; 59 interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
58 reg-shift = <2>; 60 reg-shift = <2>;
59 reg-io-width = <4>; 61 reg-io-width = <4>;
@@ -63,7 +65,7 @@
63 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart"; 65 compatible = "brcm,bcm21664-dw-apb-uart", "snps,dw-apb-uart";
64 status = "disabled"; 66 status = "disabled";
65 reg = <0x3e002000 0x118>; 67 reg = <0x3e002000 0x118>;
66 clocks = <&uartb3_clk>; 68 clocks = <&slave_ccu BCM21664_SLAVE_CCU_UARTB3>;
67 interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; 69 interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
68 reg-shift = <2>; 70 reg-shift = <2>;
69 reg-io-width = <4>; 71 reg-io-width = <4>;
@@ -85,7 +87,7 @@
85 compatible = "brcm,kona-timer"; 87 compatible = "brcm,kona-timer";
86 reg = <0x35006000 0x1c>; 88 reg = <0x35006000 0x1c>;
87 interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; 89 interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
88 clocks = <&hub_timer_clk>; 90 clocks = <&aon_ccu BCM21664_AON_CCU_HUB_TIMER>;
89 }; 91 };
90 92
91 gpio: gpio@35003000 { 93 gpio: gpio@35003000 {
@@ -106,7 +108,7 @@
106 compatible = "brcm,kona-sdhci"; 108 compatible = "brcm,kona-sdhci";
107 reg = <0x3f180000 0x801c>; 109 reg = <0x3f180000 0x801c>;
108 interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>; 110 interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
109 clocks = <&sdio1_clk>; 111 clocks = <&master_ccu BCM21664_MASTER_CCU_SDIO1>;
110 status = "disabled"; 112 status = "disabled";
111 }; 113 };
112 114
@@ -114,7 +116,7 @@
114 compatible = "brcm,kona-sdhci"; 116 compatible = "brcm,kona-sdhci";
115 reg = <0x3f190000 0x801c>; 117 reg = <0x3f190000 0x801c>;
116 interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>; 118 interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
117 clocks = <&sdio2_clk>; 119 clocks = <&master_ccu BCM21664_MASTER_CCU_SDIO2>;
118 status = "disabled"; 120 status = "disabled";
119 }; 121 };
120 122
@@ -122,7 +124,7 @@
122 compatible = "brcm,kona-sdhci"; 124 compatible = "brcm,kona-sdhci";
123 reg = <0x3f1a0000 0x801c>; 125 reg = <0x3f1a0000 0x801c>;
124 interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>; 126 interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
125 clocks = <&sdio3_clk>; 127 clocks = <&master_ccu BCM21664_MASTER_CCU_SDIO3>;
126 status = "disabled"; 128 status = "disabled";
127 }; 129 };
128 130
@@ -130,7 +132,7 @@
130 compatible = "brcm,kona-sdhci"; 132 compatible = "brcm,kona-sdhci";
131 reg = <0x3f1b0000 0x801c>; 133 reg = <0x3f1b0000 0x801c>;
132 interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; 134 interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
133 clocks = <&sdio4_clk>; 135 clocks = <&master_ccu BCM21664_MASTER_CCU_SDIO4>;
134 status = "disabled"; 136 status = "disabled";
135 }; 137 };
136 138
@@ -140,7 +142,7 @@
140 interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>; 142 interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
141 #address-cells = <1>; 143 #address-cells = <1>;
142 #size-cells = <0>; 144 #size-cells = <0>;
143 clocks = <&bsc1_clk>; 145 clocks = <&slave_ccu BCM21664_SLAVE_CCU_BSC1>;
144 status = "disabled"; 146 status = "disabled";
145 }; 147 };
146 148
@@ -150,7 +152,7 @@
150 interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>; 152 interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
151 #address-cells = <1>; 153 #address-cells = <1>;
152 #size-cells = <0>; 154 #size-cells = <0>;
153 clocks = <&bsc2_clk>; 155 clocks = <&slave_ccu BCM21664_SLAVE_CCU_BSC2>;
154 status = "disabled"; 156 status = "disabled";
155 }; 157 };
156 158
@@ -160,7 +162,7 @@
160 interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>; 162 interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
161 #address-cells = <1>; 163 #address-cells = <1>;
162 #size-cells = <0>; 164 #size-cells = <0>;
163 clocks = <&bsc3_clk>; 165 clocks = <&slave_ccu BCM21664_SLAVE_CCU_BSC3>;
164 status = "disabled"; 166 status = "disabled";
165 }; 167 };
166 168
@@ -170,105 +172,149 @@
170 interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>; 172 interrupts = <GIC_SPI 170 IRQ_TYPE_LEVEL_HIGH>;
171 #address-cells = <1>; 173 #address-cells = <1>;
172 #size-cells = <0>; 174 #size-cells = <0>;
173 clocks = <&bsc4_clk>; 175 clocks = <&slave_ccu BCM21664_SLAVE_CCU_BSC4>;
174 status = "disabled"; 176 status = "disabled";
175 }; 177 };
176 178
177 clocks { 179 clocks {
178 bsc1_clk: bsc1 { 180 #address-cells = <1>;
179 compatible = "fixed-clock"; 181 #size-cells = <1>;
180 clock-frequency = <13000000>; 182 ranges;
181 #clock-cells = <0>;
182 };
183 183
184 bsc2_clk: bsc2 { 184 /*
185 compatible = "fixed-clock"; 185 * Fixed clocks are defined before CCUs whose
186 clock-frequency = <13000000>; 186 * clocks may depend on them.
187 */
188
189 ref_32k_clk: ref_32k {
187 #clock-cells = <0>; 190 #clock-cells = <0>;
191 compatible = "fixed-clock";
192 clock-frequency = <32768>;
188 }; 193 };
189 194
190 bsc3_clk: bsc3 { 195 bbl_32k_clk: bbl_32k {
191 compatible = "fixed-clock";
192 clock-frequency = <13000000>;
193 #clock-cells = <0>; 196 #clock-cells = <0>;
197 compatible = "fixed-clock";
198 clock-frequency = <32768>;
194 }; 199 };
195 200
196 bsc4_clk: bsc4 { 201 ref_13m_clk: ref_13m {
202 #clock-cells = <0>;
197 compatible = "fixed-clock"; 203 compatible = "fixed-clock";
198 clock-frequency = <13000000>; 204 clock-frequency = <13000000>;
199 #clock-cells = <0>;
200 }; 205 };
201 206
202 pmu_bsc_clk: pmu_bsc { 207 var_13m_clk: var_13m {
208 #clock-cells = <0>;
203 compatible = "fixed-clock"; 209 compatible = "fixed-clock";
204 clock-frequency = <13000000>; 210 clock-frequency = <13000000>;
205 #clock-cells = <0>;
206 }; 211 };
207 212
208 hub_timer_clk: hub_timer { 213 dft_19_5m_clk: dft_19_5m {
209 compatible = "fixed-clock";
210 clock-frequency = <32768>;
211 #clock-cells = <0>; 214 #clock-cells = <0>;
215 compatible = "fixed-clock";
216 clock-frequency = <19500000>;
212 }; 217 };
213 218
214 pwm_clk: pwm { 219 ref_crystal_clk: ref_crystal {
220 #clock-cells = <0>;
215 compatible = "fixed-clock"; 221 compatible = "fixed-clock";
216 clock-frequency = <26000000>; 222 clock-frequency = <26000000>;
217 #clock-cells = <0>;
218 }; 223 };
219 224
220 sdio1_clk: sdio1 { 225 ref_52m_clk: ref_52m {
221 compatible = "fixed-clock";
222 clock-frequency = <48000000>;
223 #clock-cells = <0>; 226 #clock-cells = <0>;
227 compatible = "fixed-clock";
228 clock-frequency = <52000000>;
224 }; 229 };
225 230
226 sdio2_clk: sdio2 { 231 var_52m_clk: var_52m {
227 compatible = "fixed-clock";
228 clock-frequency = <48000000>;
229 #clock-cells = <0>; 232 #clock-cells = <0>;
233 compatible = "fixed-clock";
234 clock-frequency = <52000000>;
230 }; 235 };
231 236
232 sdio3_clk: sdio3 { 237 usb_otg_ahb_clk: usb_otg_ahb {
233 compatible = "fixed-clock";
234 clock-frequency = <48000000>;
235 #clock-cells = <0>; 238 #clock-cells = <0>;
239 compatible = "fixed-clock";
240 clock-frequency = <52000000>;
236 }; 241 };
237 242
238 sdio4_clk: sdio4 { 243 ref_96m_clk: ref_96m {
239 compatible = "fixed-clock";
240 clock-frequency = <48000000>;
241 #clock-cells = <0>; 244 #clock-cells = <0>;
245 compatible = "fixed-clock";
246 clock-frequency = <96000000>;
242 }; 247 };
243 248
244 tmon_1m_clk: tmon_1m { 249 var_96m_clk: var_96m {
245 compatible = "fixed-clock";
246 clock-frequency = <1000000>;
247 #clock-cells = <0>; 250 #clock-cells = <0>;
251 compatible = "fixed-clock";
252 clock-frequency = <96000000>;
248 }; 253 };
249 254
250 uartb_clk: uartb { 255 ref_104m_clk: ref_104m {
251 compatible = "fixed-clock";
252 clock-frequency = <13000000>;
253 #clock-cells = <0>; 256 #clock-cells = <0>;
257 compatible = "fixed-clock";
258 clock-frequency = <104000000>;
254 }; 259 };
255 260
256 uartb2_clk: uartb2 { 261 var_104m_clk: var_104m {
257 compatible = "fixed-clock";
258 clock-frequency = <13000000>;
259 #clock-cells = <0>; 262 #clock-cells = <0>;
263 compatible = "fixed-clock";
264 clock-frequency = <104000000>;
260 }; 265 };
261 266
262 uartb3_clk: uartb3 { 267 ref_156m_clk: ref_156m {
263 compatible = "fixed-clock";
264 clock-frequency = <13000000>;
265 #clock-cells = <0>; 268 #clock-cells = <0>;
269 compatible = "fixed-clock";
270 clock-frequency = <156000000>;
266 }; 271 };
267 272
268 usb_otg_ahb_clk: usb_otg_ahb { 273 var_156m_clk: var_156m {
269 compatible = "fixed-clock";
270 clock-frequency = <52000000>;
271 #clock-cells = <0>; 274 #clock-cells = <0>;
275 compatible = "fixed-clock";
276 clock-frequency = <156000000>;
277 };
278
279 root_ccu: root_ccu {
280 compatible = BCM21664_DT_ROOT_CCU_COMPAT;
281 reg = <0x35001000 0x0f00>;
282 #clock-cells = <1>;
283 clock-output-names = "frac_1m";
284 };
285
286 aon_ccu: aon_ccu {
287 compatible = BCM21664_DT_AON_CCU_COMPAT;
288 reg = <0x35002000 0x0f00>;
289 #clock-cells = <1>;
290 clock-output-names = "hub_timer";
291 };
292
293 master_ccu: master_ccu {
294 compatible = BCM21664_DT_MASTER_CCU_COMPAT;
295 reg = <0x3f001000 0x0f00>;
296 #clock-cells = <1>;
297 clock-output-names = "sdio1",
298 "sdio2",
299 "sdio3",
300 "sdio4",
301 "sdio1_sleep",
302 "sdio2_sleep",
303 "sdio3_sleep",
304 "sdio4_sleep";
305 };
306
307 slave_ccu: slave_ccu {
308 compatible = BCM21664_DT_SLAVE_CCU_COMPAT;
309 reg = <0x3e011000 0x0f00>;
310 #clock-cells = <1>;
311 clock-output-names = "uartb",
312 "uartb2",
313 "uartb3",
314 "bsc1",
315 "bsc2",
316 "bsc3",
317 "bsc4";
272 }; 318 };
273 }; 319 };
274 320
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 3a2196481b11..9f9c5ae5359b 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -58,12 +58,12 @@ config COMMON_CLK_SI570
58 clock generators. 58 clock generators.
59 59
60config COMMON_CLK_S2MPS11 60config COMMON_CLK_S2MPS11
61 tristate "Clock driver for S2MPS11/S5M8767 MFD" 61 tristate "Clock driver for S2MPS1X/S5M8767 MFD"
62 depends on MFD_SEC_CORE 62 depends on MFD_SEC_CORE
63 ---help--- 63 ---help---
64 This driver supports S2MPS11/S5M8767 crystal oscillator clock. These 64 This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
65 multi-function devices have 3 fixed-rate oscillators, clocked at 65 clock. These multi-function devices have two (S2MPS14) or three
66 32KHz each. 66 (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
67 67
68config CLK_TWL6040 68config CLK_TWL6040
69 tristate "External McPDM functional clock from twl6040" 69 tristate "External McPDM functional clock from twl6040"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 50b2a7ebd747..567f10259029 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_COMMON_CLK) += clk-fractional-divider.o
13# hardware specific clock types 13# hardware specific clock types
14# please keep this section sorted lexicographically by file/directory path name 14# please keep this section sorted lexicographically by file/directory path name
15obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o 15obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o
16obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o
16obj-$(CONFIG_ARCH_BCM2835) += clk-bcm2835.o 17obj-$(CONFIG_ARCH_BCM2835) += clk-bcm2835.o
17obj-$(CONFIG_ARCH_EFM32) += clk-efm32gg.o 18obj-$(CONFIG_ARCH_EFM32) += clk-efm32gg.o
18obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o 19obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
@@ -32,8 +33,10 @@ obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o
32obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o 33obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o
33obj-$(CONFIG_COMMON_CLK_AT91) += at91/ 34obj-$(CONFIG_COMMON_CLK_AT91) += at91/
34obj-$(CONFIG_ARCH_BCM_MOBILE) += bcm/ 35obj-$(CONFIG_ARCH_BCM_MOBILE) += bcm/
36obj-$(CONFIG_ARCH_BERLIN) += berlin/
35obj-$(CONFIG_ARCH_HI3xxx) += hisilicon/ 37obj-$(CONFIG_ARCH_HI3xxx) += hisilicon/
36obj-$(CONFIG_ARCH_HIP04) += hisilicon/ 38obj-$(CONFIG_ARCH_HIP04) += hisilicon/
39obj-$(CONFIG_ARCH_HIX5HD2) += hisilicon/
37obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/ 40obj-$(CONFIG_COMMON_CLK_KEYSTONE) += keystone/
38ifeq ($(CONFIG_COMMON_CLK), y) 41ifeq ($(CONFIG_COMMON_CLK), y)
39obj-$(CONFIG_ARCH_MMP) += mmp/ 42obj-$(CONFIG_ARCH_MMP) += mmp/
diff --git a/drivers/clk/bcm/Kconfig b/drivers/clk/bcm/Kconfig
index a7262fb8ce55..75506e53075b 100644
--- a/drivers/clk/bcm/Kconfig
+++ b/drivers/clk/bcm/Kconfig
@@ -6,4 +6,4 @@ config CLK_BCM_KONA
6 help 6 help
7 Enable common clock framework support for Broadcom SoCs 7 Enable common clock framework support for Broadcom SoCs
8 using "Kona" style clock control units, including those 8 using "Kona" style clock control units, including those
9 in the BCM281xx family. 9 in the BCM281xx and BCM21664 families.
diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile
index cf93359aa862..6297d05a9a10 100644
--- a/drivers/clk/bcm/Makefile
+++ b/drivers/clk/bcm/Makefile
@@ -1,3 +1,4 @@
1obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o 1obj-$(CONFIG_CLK_BCM_KONA) += clk-kona.o
2obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o 2obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-setup.o
3obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o 3obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o
4obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm21664.o
diff --git a/drivers/clk/bcm/clk-bcm21664.c b/drivers/clk/bcm/clk-bcm21664.c
new file mode 100644
index 000000000000..eeae4cad2281
--- /dev/null
+++ b/drivers/clk/bcm/clk-bcm21664.c
@@ -0,0 +1,290 @@
1/*
2 * Copyright (C) 2014 Broadcom Corporation
3 * Copyright 2014 Linaro Limited
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation version 2.
8 *
9 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
10 * kind, whether express or implied; without even the implied warranty
11 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#include "clk-kona.h"
16#include "dt-bindings/clock/bcm21664.h"
17
18#define BCM21664_CCU_COMMON(_name, _capname) \
19 KONA_CCU_COMMON(BCM21664, _name, _capname)
20
21/* Root CCU */
22
23static struct peri_clk_data frac_1m_data = {
24 .gate = HW_SW_GATE(0x214, 16, 0, 1),
25 .clocks = CLOCKS("ref_crystal"),
26};
27
28static struct ccu_data root_ccu_data = {
29 BCM21664_CCU_COMMON(root, ROOT),
30 /* no policy control */
31 .kona_clks = {
32 [BCM21664_ROOT_CCU_FRAC_1M] =
33 KONA_CLK(root, frac_1m, peri),
34 [BCM21664_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
35 },
36};
37
38/* AON CCU */
39
40static struct peri_clk_data hub_timer_data = {
41 .gate = HW_SW_GATE(0x0414, 16, 0, 1),
42 .hyst = HYST(0x0414, 8, 9),
43 .clocks = CLOCKS("bbl_32k",
44 "frac_1m",
45 "dft_19_5m"),
46 .sel = SELECTOR(0x0a10, 0, 2),
47 .trig = TRIGGER(0x0a40, 4),
48};
49
50static struct ccu_data aon_ccu_data = {
51 BCM21664_CCU_COMMON(aon, AON),
52 .policy = {
53 .enable = CCU_LVM_EN(0x0034, 0),
54 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
55 },
56 .kona_clks = {
57 [BCM21664_AON_CCU_HUB_TIMER] =
58 KONA_CLK(aon, hub_timer, peri),
59 [BCM21664_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
60 },
61};
62
63/* Master CCU */
64
65static struct peri_clk_data sdio1_data = {
66 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
67 .clocks = CLOCKS("ref_crystal",
68 "var_52m",
69 "ref_52m",
70 "var_96m",
71 "ref_96m"),
72 .sel = SELECTOR(0x0a28, 0, 3),
73 .div = DIVIDER(0x0a28, 4, 14),
74 .trig = TRIGGER(0x0afc, 9),
75};
76
77static struct peri_clk_data sdio2_data = {
78 .gate = HW_SW_GATE(0x035c, 18, 2, 3),
79 .clocks = CLOCKS("ref_crystal",
80 "var_52m",
81 "ref_52m",
82 "var_96m",
83 "ref_96m"),
84 .sel = SELECTOR(0x0a2c, 0, 3),
85 .div = DIVIDER(0x0a2c, 4, 14),
86 .trig = TRIGGER(0x0afc, 10),
87};
88
89static struct peri_clk_data sdio3_data = {
90 .gate = HW_SW_GATE(0x0364, 18, 2, 3),
91 .clocks = CLOCKS("ref_crystal",
92 "var_52m",
93 "ref_52m",
94 "var_96m",
95 "ref_96m"),
96 .sel = SELECTOR(0x0a34, 0, 3),
97 .div = DIVIDER(0x0a34, 4, 14),
98 .trig = TRIGGER(0x0afc, 12),
99};
100
101static struct peri_clk_data sdio4_data = {
102 .gate = HW_SW_GATE(0x0360, 18, 2, 3),
103 .clocks = CLOCKS("ref_crystal",
104 "var_52m",
105 "ref_52m",
106 "var_96m",
107 "ref_96m"),
108 .sel = SELECTOR(0x0a30, 0, 3),
109 .div = DIVIDER(0x0a30, 4, 14),
110 .trig = TRIGGER(0x0afc, 11),
111};
112
113static struct peri_clk_data sdio1_sleep_data = {
114 .clocks = CLOCKS("ref_32k"), /* Verify */
115 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
116};
117
118static struct peri_clk_data sdio2_sleep_data = {
119 .clocks = CLOCKS("ref_32k"), /* Verify */
120 .gate = HW_SW_GATE(0x035c, 18, 2, 3),
121};
122
123static struct peri_clk_data sdio3_sleep_data = {
124 .clocks = CLOCKS("ref_32k"), /* Verify */
125 .gate = HW_SW_GATE(0x0364, 18, 2, 3),
126};
127
128static struct peri_clk_data sdio4_sleep_data = {
129 .clocks = CLOCKS("ref_32k"), /* Verify */
130 .gate = HW_SW_GATE(0x0360, 18, 2, 3),
131};
132
133static struct ccu_data master_ccu_data = {
134 BCM21664_CCU_COMMON(master, MASTER),
135 .policy = {
136 .enable = CCU_LVM_EN(0x0034, 0),
137 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
138 },
139 .kona_clks = {
140 [BCM21664_MASTER_CCU_SDIO1] =
141 KONA_CLK(master, sdio1, peri),
142 [BCM21664_MASTER_CCU_SDIO2] =
143 KONA_CLK(master, sdio2, peri),
144 [BCM21664_MASTER_CCU_SDIO3] =
145 KONA_CLK(master, sdio3, peri),
146 [BCM21664_MASTER_CCU_SDIO4] =
147 KONA_CLK(master, sdio4, peri),
148 [BCM21664_MASTER_CCU_SDIO1_SLEEP] =
149 KONA_CLK(master, sdio1_sleep, peri),
150 [BCM21664_MASTER_CCU_SDIO2_SLEEP] =
151 KONA_CLK(master, sdio2_sleep, peri),
152 [BCM21664_MASTER_CCU_SDIO3_SLEEP] =
153 KONA_CLK(master, sdio3_sleep, peri),
154 [BCM21664_MASTER_CCU_SDIO4_SLEEP] =
155 KONA_CLK(master, sdio4_sleep, peri),
156 [BCM21664_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
157 },
158};
159
160/* Slave CCU */
161
162static struct peri_clk_data uartb_data = {
163 .gate = HW_SW_GATE(0x0400, 18, 2, 3),
164 .clocks = CLOCKS("ref_crystal",
165 "var_156m",
166 "ref_156m"),
167 .sel = SELECTOR(0x0a10, 0, 2),
168 .div = FRAC_DIVIDER(0x0a10, 4, 12, 8),
169 .trig = TRIGGER(0x0afc, 2),
170};
171
172static struct peri_clk_data uartb2_data = {
173 .gate = HW_SW_GATE(0x0404, 18, 2, 3),
174 .clocks = CLOCKS("ref_crystal",
175 "var_156m",
176 "ref_156m"),
177 .sel = SELECTOR(0x0a14, 0, 2),
178 .div = FRAC_DIVIDER(0x0a14, 4, 12, 8),
179 .trig = TRIGGER(0x0afc, 3),
180};
181
182static struct peri_clk_data uartb3_data = {
183 .gate = HW_SW_GATE(0x0408, 18, 2, 3),
184 .clocks = CLOCKS("ref_crystal",
185 "var_156m",
186 "ref_156m"),
187 .sel = SELECTOR(0x0a18, 0, 2),
188 .div = FRAC_DIVIDER(0x0a18, 4, 12, 8),
189 .trig = TRIGGER(0x0afc, 4),
190};
191
192static struct peri_clk_data bsc1_data = {
193 .gate = HW_SW_GATE(0x0458, 18, 2, 3),
194 .clocks = CLOCKS("ref_crystal",
195 "var_104m",
196 "ref_104m",
197 "var_13m",
198 "ref_13m"),
199 .sel = SELECTOR(0x0a64, 0, 3),
200 .trig = TRIGGER(0x0afc, 23),
201};
202
203static struct peri_clk_data bsc2_data = {
204 .gate = HW_SW_GATE(0x045c, 18, 2, 3),
205 .clocks = CLOCKS("ref_crystal",
206 "var_104m",
207 "ref_104m",
208 "var_13m",
209 "ref_13m"),
210 .sel = SELECTOR(0x0a68, 0, 3),
211 .trig = TRIGGER(0x0afc, 24),
212};
213
214static struct peri_clk_data bsc3_data = {
215 .gate = HW_SW_GATE(0x0470, 18, 2, 3),
216 .clocks = CLOCKS("ref_crystal",
217 "var_104m",
218 "ref_104m",
219 "var_13m",
220 "ref_13m"),
221 .sel = SELECTOR(0x0a7c, 0, 3),
222 .trig = TRIGGER(0x0afc, 18),
223};
224
225static struct peri_clk_data bsc4_data = {
226 .gate = HW_SW_GATE(0x0474, 18, 2, 3),
227 .clocks = CLOCKS("ref_crystal",
228 "var_104m",
229 "ref_104m",
230 "var_13m",
231 "ref_13m"),
232 .sel = SELECTOR(0x0a80, 0, 3),
233 .trig = TRIGGER(0x0afc, 19),
234};
235
236static struct ccu_data slave_ccu_data = {
237 BCM21664_CCU_COMMON(slave, SLAVE),
238 .policy = {
239 .enable = CCU_LVM_EN(0x0034, 0),
240 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
241 },
242 .kona_clks = {
243 [BCM21664_SLAVE_CCU_UARTB] =
244 KONA_CLK(slave, uartb, peri),
245 [BCM21664_SLAVE_CCU_UARTB2] =
246 KONA_CLK(slave, uartb2, peri),
247 [BCM21664_SLAVE_CCU_UARTB3] =
248 KONA_CLK(slave, uartb3, peri),
249 [BCM21664_SLAVE_CCU_BSC1] =
250 KONA_CLK(slave, bsc1, peri),
251 [BCM21664_SLAVE_CCU_BSC2] =
252 KONA_CLK(slave, bsc2, peri),
253 [BCM21664_SLAVE_CCU_BSC3] =
254 KONA_CLK(slave, bsc3, peri),
255 [BCM21664_SLAVE_CCU_BSC4] =
256 KONA_CLK(slave, bsc4, peri),
257 [BCM21664_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
258 },
259};
260
261/* Device tree match table callback functions */
262
263static void __init kona_dt_root_ccu_setup(struct device_node *node)
264{
265 kona_dt_ccu_setup(&root_ccu_data, node);
266}
267
268static void __init kona_dt_aon_ccu_setup(struct device_node *node)
269{
270 kona_dt_ccu_setup(&aon_ccu_data, node);
271}
272
273static void __init kona_dt_master_ccu_setup(struct device_node *node)
274{
275 kona_dt_ccu_setup(&master_ccu_data, node);
276}
277
278static void __init kona_dt_slave_ccu_setup(struct device_node *node)
279{
280 kona_dt_ccu_setup(&slave_ccu_data, node);
281}
282
283CLK_OF_DECLARE(bcm21664_root_ccu, BCM21664_DT_ROOT_CCU_COMPAT,
284 kona_dt_root_ccu_setup);
285CLK_OF_DECLARE(bcm21664_aon_ccu, BCM21664_DT_AON_CCU_COMPAT,
286 kona_dt_aon_ccu_setup);
287CLK_OF_DECLARE(bcm21664_master_ccu, BCM21664_DT_MASTER_CCU_COMPAT,
288 kona_dt_master_ccu_setup);
289CLK_OF_DECLARE(bcm21664_slave_ccu, BCM21664_DT_SLAVE_CCU_COMPAT,
290 kona_dt_slave_ccu_setup);
diff --git a/drivers/clk/bcm/clk-bcm281xx.c b/drivers/clk/bcm/clk-bcm281xx.c
index 3c66de696aeb..502a487d62c5 100644
--- a/drivers/clk/bcm/clk-bcm281xx.c
+++ b/drivers/clk/bcm/clk-bcm281xx.c
@@ -15,14 +15,10 @@
15#include "clk-kona.h" 15#include "clk-kona.h"
16#include "dt-bindings/clock/bcm281xx.h" 16#include "dt-bindings/clock/bcm281xx.h"
17 17
18/* bcm11351 CCU device tree "compatible" strings */ 18#define BCM281XX_CCU_COMMON(_name, _ucase_name) \
19#define BCM11351_DT_ROOT_CCU_COMPAT "brcm,bcm11351-root-ccu" 19 KONA_CCU_COMMON(BCM281XX, _name, _ucase_name)
20#define BCM11351_DT_AON_CCU_COMPAT "brcm,bcm11351-aon-ccu"
21#define BCM11351_DT_HUB_CCU_COMPAT "brcm,bcm11351-hub-ccu"
22#define BCM11351_DT_MASTER_CCU_COMPAT "brcm,bcm11351-master-ccu"
23#define BCM11351_DT_SLAVE_CCU_COMPAT "brcm,bcm11351-slave-ccu"
24 20
25/* Root CCU clocks */ 21/* Root CCU */
26 22
27static struct peri_clk_data frac_1m_data = { 23static struct peri_clk_data frac_1m_data = {
28 .gate = HW_SW_GATE(0x214, 16, 0, 1), 24 .gate = HW_SW_GATE(0x214, 16, 0, 1),
@@ -31,7 +27,16 @@ static struct peri_clk_data frac_1m_data = {
31 .clocks = CLOCKS("ref_crystal"), 27 .clocks = CLOCKS("ref_crystal"),
32}; 28};
33 29
34/* AON CCU clocks */ 30static struct ccu_data root_ccu_data = {
31 BCM281XX_CCU_COMMON(root, ROOT),
32 .kona_clks = {
33 [BCM281XX_ROOT_CCU_FRAC_1M] =
34 KONA_CLK(root, frac_1m, peri),
35 [BCM281XX_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
36 },
37};
38
39/* AON CCU */
35 40
36static struct peri_clk_data hub_timer_data = { 41static struct peri_clk_data hub_timer_data = {
37 .gate = HW_SW_GATE(0x0414, 16, 0, 1), 42 .gate = HW_SW_GATE(0x0414, 16, 0, 1),
@@ -60,7 +65,20 @@ static struct peri_clk_data pmu_bsc_var_data = {
60 .trig = TRIGGER(0x0a40, 2), 65 .trig = TRIGGER(0x0a40, 2),
61}; 66};
62 67
63/* Hub CCU clocks */ 68static struct ccu_data aon_ccu_data = {
69 BCM281XX_CCU_COMMON(aon, AON),
70 .kona_clks = {
71 [BCM281XX_AON_CCU_HUB_TIMER] =
72 KONA_CLK(aon, hub_timer, peri),
73 [BCM281XX_AON_CCU_PMU_BSC] =
74 KONA_CLK(aon, pmu_bsc, peri),
75 [BCM281XX_AON_CCU_PMU_BSC_VAR] =
76 KONA_CLK(aon, pmu_bsc_var, peri),
77 [BCM281XX_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
78 },
79};
80
81/* Hub CCU */
64 82
65static struct peri_clk_data tmon_1m_data = { 83static struct peri_clk_data tmon_1m_data = {
66 .gate = HW_SW_GATE(0x04a4, 18, 2, 3), 84 .gate = HW_SW_GATE(0x04a4, 18, 2, 3),
@@ -70,7 +88,16 @@ static struct peri_clk_data tmon_1m_data = {
70 .trig = TRIGGER(0x0e84, 1), 88 .trig = TRIGGER(0x0e84, 1),
71}; 89};
72 90
73/* Master CCU clocks */ 91static struct ccu_data hub_ccu_data = {
92 BCM281XX_CCU_COMMON(hub, HUB),
93 .kona_clks = {
94 [BCM281XX_HUB_CCU_TMON_1M] =
95 KONA_CLK(hub, tmon_1m, peri),
96 [BCM281XX_HUB_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
97 },
98};
99
100/* Master CCU */
74 101
75static struct peri_clk_data sdio1_data = { 102static struct peri_clk_data sdio1_data = {
76 .gate = HW_SW_GATE(0x0358, 18, 2, 3), 103 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
@@ -153,7 +180,28 @@ static struct peri_clk_data hsic2_12m_data = {
153 .trig = TRIGGER(0x0afc, 5), 180 .trig = TRIGGER(0x0afc, 5),
154}; 181};
155 182
156/* Slave CCU clocks */ 183static struct ccu_data master_ccu_data = {
184 BCM281XX_CCU_COMMON(master, MASTER),
185 .kona_clks = {
186 [BCM281XX_MASTER_CCU_SDIO1] =
187 KONA_CLK(master, sdio1, peri),
188 [BCM281XX_MASTER_CCU_SDIO2] =
189 KONA_CLK(master, sdio2, peri),
190 [BCM281XX_MASTER_CCU_SDIO3] =
191 KONA_CLK(master, sdio3, peri),
192 [BCM281XX_MASTER_CCU_SDIO4] =
193 KONA_CLK(master, sdio4, peri),
194 [BCM281XX_MASTER_CCU_USB_IC] =
195 KONA_CLK(master, usb_ic, peri),
196 [BCM281XX_MASTER_CCU_HSIC2_48M] =
197 KONA_CLK(master, hsic2_48m, peri),
198 [BCM281XX_MASTER_CCU_HSIC2_12M] =
199 KONA_CLK(master, hsic2_12m, peri),
200 [BCM281XX_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
201 },
202};
203
204/* Slave CCU */
157 205
158static struct peri_clk_data uartb_data = { 206static struct peri_clk_data uartb_data = {
159 .gate = HW_SW_GATE(0x0400, 18, 2, 3), 207 .gate = HW_SW_GATE(0x0400, 18, 2, 3),
@@ -261,156 +309,67 @@ static struct peri_clk_data pwm_data = {
261 .trig = TRIGGER(0x0afc, 15), 309 .trig = TRIGGER(0x0afc, 15),
262}; 310};
263 311
264/* 312static struct ccu_data slave_ccu_data = {
265 * CCU setup routines 313 BCM281XX_CCU_COMMON(slave, SLAVE),
266 * 314 .kona_clks = {
267 * These are called from kona_dt_ccu_setup() to initialize the array 315 [BCM281XX_SLAVE_CCU_UARTB] =
268 * of clocks provided by the CCU. Once allocated, the entries in 316 KONA_CLK(slave, uartb, peri),
269 * the array are initialized by calling kona_clk_setup() with the 317 [BCM281XX_SLAVE_CCU_UARTB2] =
270 * initialization data for each clock. They return 0 if successful 318 KONA_CLK(slave, uartb2, peri),
271 * or an error code otherwise. 319 [BCM281XX_SLAVE_CCU_UARTB3] =
272 */ 320 KONA_CLK(slave, uartb3, peri),
273static int __init bcm281xx_root_ccu_clks_setup(struct ccu_data *ccu) 321 [BCM281XX_SLAVE_CCU_UARTB4] =
274{ 322 KONA_CLK(slave, uartb4, peri),
275 struct clk **clks; 323 [BCM281XX_SLAVE_CCU_SSP0] =
276 size_t count = BCM281XX_ROOT_CCU_CLOCK_COUNT; 324 KONA_CLK(slave, ssp0, peri),
277 325 [BCM281XX_SLAVE_CCU_SSP2] =
278 clks = kzalloc(count * sizeof(*clks), GFP_KERNEL); 326 KONA_CLK(slave, ssp2, peri),
279 if (!clks) { 327 [BCM281XX_SLAVE_CCU_BSC1] =
280 pr_err("%s: failed to allocate root clocks\n", __func__); 328 KONA_CLK(slave, bsc1, peri),
281 return -ENOMEM; 329 [BCM281XX_SLAVE_CCU_BSC2] =
282 } 330 KONA_CLK(slave, bsc2, peri),
283 ccu->data.clks = clks; 331 [BCM281XX_SLAVE_CCU_BSC3] =
284 ccu->data.clk_num = count; 332 KONA_CLK(slave, bsc3, peri),
285 333 [BCM281XX_SLAVE_CCU_PWM] =
286 PERI_CLK_SETUP(clks, ccu, BCM281XX_ROOT_CCU_FRAC_1M, frac_1m); 334 KONA_CLK(slave, pwm, peri),
287 335 [BCM281XX_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
288 return 0; 336 },
289} 337};
290
291static int __init bcm281xx_aon_ccu_clks_setup(struct ccu_data *ccu)
292{
293 struct clk **clks;
294 size_t count = BCM281XX_AON_CCU_CLOCK_COUNT;
295
296 clks = kzalloc(count * sizeof(*clks), GFP_KERNEL);
297 if (!clks) {
298 pr_err("%s: failed to allocate aon clocks\n", __func__);
299 return -ENOMEM;
300 }
301 ccu->data.clks = clks;
302 ccu->data.clk_num = count;
303
304 PERI_CLK_SETUP(clks, ccu, BCM281XX_AON_CCU_HUB_TIMER, hub_timer);
305 PERI_CLK_SETUP(clks, ccu, BCM281XX_AON_CCU_PMU_BSC, pmu_bsc);
306 PERI_CLK_SETUP(clks, ccu, BCM281XX_AON_CCU_PMU_BSC_VAR, pmu_bsc_var);
307
308 return 0;
309}
310
311static int __init bcm281xx_hub_ccu_clks_setup(struct ccu_data *ccu)
312{
313 struct clk **clks;
314 size_t count = BCM281XX_HUB_CCU_CLOCK_COUNT;
315
316 clks = kzalloc(count * sizeof(*clks), GFP_KERNEL);
317 if (!clks) {
318 pr_err("%s: failed to allocate hub clocks\n", __func__);
319 return -ENOMEM;
320 }
321 ccu->data.clks = clks;
322 ccu->data.clk_num = count;
323
324 PERI_CLK_SETUP(clks, ccu, BCM281XX_HUB_CCU_TMON_1M, tmon_1m);
325
326 return 0;
327}
328
329static int __init bcm281xx_master_ccu_clks_setup(struct ccu_data *ccu)
330{
331 struct clk **clks;
332 size_t count = BCM281XX_MASTER_CCU_CLOCK_COUNT;
333
334 clks = kzalloc(count * sizeof(*clks), GFP_KERNEL);
335 if (!clks) {
336 pr_err("%s: failed to allocate master clocks\n", __func__);
337 return -ENOMEM;
338 }
339 ccu->data.clks = clks;
340 ccu->data.clk_num = count;
341
342 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_SDIO1, sdio1);
343 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_SDIO2, sdio2);
344 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_SDIO3, sdio3);
345 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_SDIO4, sdio4);
346 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_USB_IC, usb_ic);
347 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_HSIC2_48M, hsic2_48m);
348 PERI_CLK_SETUP(clks, ccu, BCM281XX_MASTER_CCU_HSIC2_12M, hsic2_12m);
349
350 return 0;
351}
352
353static int __init bcm281xx_slave_ccu_clks_setup(struct ccu_data *ccu)
354{
355 struct clk **clks;
356 size_t count = BCM281XX_SLAVE_CCU_CLOCK_COUNT;
357
358 clks = kzalloc(count * sizeof(*clks), GFP_KERNEL);
359 if (!clks) {
360 pr_err("%s: failed to allocate slave clocks\n", __func__);
361 return -ENOMEM;
362 }
363 ccu->data.clks = clks;
364 ccu->data.clk_num = count;
365
366 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_UARTB, uartb);
367 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_UARTB2, uartb2);
368 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_UARTB3, uartb3);
369 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_UARTB4, uartb4);
370 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_SSP0, ssp0);
371 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_SSP2, ssp2);
372 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_BSC1, bsc1);
373 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_BSC2, bsc2);
374 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_BSC3, bsc3);
375 PERI_CLK_SETUP(clks, ccu, BCM281XX_SLAVE_CCU_PWM, pwm);
376
377 return 0;
378}
379 338
380/* Device tree match table callback functions */ 339/* Device tree match table callback functions */
381 340
382static void __init kona_dt_root_ccu_setup(struct device_node *node) 341static void __init kona_dt_root_ccu_setup(struct device_node *node)
383{ 342{
384 kona_dt_ccu_setup(node, bcm281xx_root_ccu_clks_setup); 343 kona_dt_ccu_setup(&root_ccu_data, node);
385} 344}
386 345
387static void __init kona_dt_aon_ccu_setup(struct device_node *node) 346static void __init kona_dt_aon_ccu_setup(struct device_node *node)
388{ 347{
389 kona_dt_ccu_setup(node, bcm281xx_aon_ccu_clks_setup); 348 kona_dt_ccu_setup(&aon_ccu_data, node);
390} 349}
391 350
392static void __init kona_dt_hub_ccu_setup(struct device_node *node) 351static void __init kona_dt_hub_ccu_setup(struct device_node *node)
393{ 352{
394 kona_dt_ccu_setup(node, bcm281xx_hub_ccu_clks_setup); 353 kona_dt_ccu_setup(&hub_ccu_data, node);
395} 354}
396 355
397static void __init kona_dt_master_ccu_setup(struct device_node *node) 356static void __init kona_dt_master_ccu_setup(struct device_node *node)
398{ 357{
399 kona_dt_ccu_setup(node, bcm281xx_master_ccu_clks_setup); 358 kona_dt_ccu_setup(&master_ccu_data, node);
400} 359}
401 360
402static void __init kona_dt_slave_ccu_setup(struct device_node *node) 361static void __init kona_dt_slave_ccu_setup(struct device_node *node)
403{ 362{
404 kona_dt_ccu_setup(node, bcm281xx_slave_ccu_clks_setup); 363 kona_dt_ccu_setup(&slave_ccu_data, node);
405} 364}
406 365
407CLK_OF_DECLARE(bcm11351_root_ccu, BCM11351_DT_ROOT_CCU_COMPAT, 366CLK_OF_DECLARE(bcm281xx_root_ccu, BCM281XX_DT_ROOT_CCU_COMPAT,
408 kona_dt_root_ccu_setup); 367 kona_dt_root_ccu_setup);
409CLK_OF_DECLARE(bcm11351_aon_ccu, BCM11351_DT_AON_CCU_COMPAT, 368CLK_OF_DECLARE(bcm281xx_aon_ccu, BCM281XX_DT_AON_CCU_COMPAT,
410 kona_dt_aon_ccu_setup); 369 kona_dt_aon_ccu_setup);
411CLK_OF_DECLARE(bcm11351_hub_ccu, BCM11351_DT_HUB_CCU_COMPAT, 370CLK_OF_DECLARE(bcm281xx_hub_ccu, BCM281XX_DT_HUB_CCU_COMPAT,
412 kona_dt_hub_ccu_setup); 371 kona_dt_hub_ccu_setup);
413CLK_OF_DECLARE(bcm11351_master_ccu, BCM11351_DT_MASTER_CCU_COMPAT, 372CLK_OF_DECLARE(bcm281xx_master_ccu, BCM281XX_DT_MASTER_CCU_COMPAT,
414 kona_dt_master_ccu_setup); 373 kona_dt_master_ccu_setup);
415CLK_OF_DECLARE(bcm11351_slave_ccu, BCM11351_DT_SLAVE_CCU_COMPAT, 374CLK_OF_DECLARE(bcm281xx_slave_ccu, BCM281XX_DT_SLAVE_CCU_COMPAT,
416 kona_dt_slave_ccu_setup); 375 kona_dt_slave_ccu_setup);
diff --git a/drivers/clk/bcm/clk-kona-setup.c b/drivers/clk/bcm/clk-kona-setup.c
index 54a06526f64f..e5aededdd322 100644
--- a/drivers/clk/bcm/clk-kona-setup.c
+++ b/drivers/clk/bcm/clk-kona-setup.c
@@ -25,6 +25,31 @@ LIST_HEAD(ccu_list); /* The list of set up CCUs */
25 25
26/* Validity checking */ 26/* Validity checking */
27 27
28static bool ccu_data_offsets_valid(struct ccu_data *ccu)
29{
30 struct ccu_policy *ccu_policy = &ccu->policy;
31 u32 limit;
32
33 limit = ccu->range - sizeof(u32);
34 limit = round_down(limit, sizeof(u32));
35 if (ccu_policy_exists(ccu_policy)) {
36 if (ccu_policy->enable.offset > limit) {
37 pr_err("%s: bad policy enable offset for %s "
38 "(%u > %u)\n", __func__,
39 ccu->name, ccu_policy->enable.offset, limit);
40 return false;
41 }
42 if (ccu_policy->control.offset > limit) {
43 pr_err("%s: bad policy control offset for %s "
44 "(%u > %u)\n", __func__,
45 ccu->name, ccu_policy->control.offset, limit);
46 return false;
47 }
48 }
49
50 return true;
51}
52
28static bool clk_requires_trigger(struct kona_clk *bcm_clk) 53static bool clk_requires_trigger(struct kona_clk *bcm_clk)
29{ 54{
30 struct peri_clk_data *peri = bcm_clk->u.peri; 55 struct peri_clk_data *peri = bcm_clk->u.peri;
@@ -54,7 +79,9 @@ static bool clk_requires_trigger(struct kona_clk *bcm_clk)
54static bool peri_clk_data_offsets_valid(struct kona_clk *bcm_clk) 79static bool peri_clk_data_offsets_valid(struct kona_clk *bcm_clk)
55{ 80{
56 struct peri_clk_data *peri; 81 struct peri_clk_data *peri;
82 struct bcm_clk_policy *policy;
57 struct bcm_clk_gate *gate; 83 struct bcm_clk_gate *gate;
84 struct bcm_clk_hyst *hyst;
58 struct bcm_clk_div *div; 85 struct bcm_clk_div *div;
59 struct bcm_clk_sel *sel; 86 struct bcm_clk_sel *sel;
60 struct bcm_clk_trig *trig; 87 struct bcm_clk_trig *trig;
@@ -64,19 +91,41 @@ static bool peri_clk_data_offsets_valid(struct kona_clk *bcm_clk)
64 91
65 BUG_ON(bcm_clk->type != bcm_clk_peri); 92 BUG_ON(bcm_clk->type != bcm_clk_peri);
66 peri = bcm_clk->u.peri; 93 peri = bcm_clk->u.peri;
67 name = bcm_clk->name; 94 name = bcm_clk->init_data.name;
68 range = bcm_clk->ccu->range; 95 range = bcm_clk->ccu->range;
69 96
70 limit = range - sizeof(u32); 97 limit = range - sizeof(u32);
71 limit = round_down(limit, sizeof(u32)); 98 limit = round_down(limit, sizeof(u32));
72 99
100 policy = &peri->policy;
101 if (policy_exists(policy)) {
102 if (policy->offset > limit) {
103 pr_err("%s: bad policy offset for %s (%u > %u)\n",
104 __func__, name, policy->offset, limit);
105 return false;
106 }
107 }
108
73 gate = &peri->gate; 109 gate = &peri->gate;
110 hyst = &peri->hyst;
74 if (gate_exists(gate)) { 111 if (gate_exists(gate)) {
75 if (gate->offset > limit) { 112 if (gate->offset > limit) {
76 pr_err("%s: bad gate offset for %s (%u > %u)\n", 113 pr_err("%s: bad gate offset for %s (%u > %u)\n",
77 __func__, name, gate->offset, limit); 114 __func__, name, gate->offset, limit);
78 return false; 115 return false;
79 } 116 }
117
118 if (hyst_exists(hyst)) {
119 if (hyst->offset > limit) {
120 pr_err("%s: bad hysteresis offset for %s "
121 "(%u > %u)\n", __func__,
122 name, hyst->offset, limit);
123 return false;
124 }
125 }
126 } else if (hyst_exists(hyst)) {
127 pr_err("%s: hysteresis but no gate for %s\n", __func__, name);
128 return false;
80 } 129 }
81 130
82 div = &peri->div; 131 div = &peri->div;
@@ -167,6 +216,36 @@ static bool bitfield_valid(u32 shift, u32 width, const char *field_name,
167 return true; 216 return true;
168} 217}
169 218
219static bool
220ccu_policy_valid(struct ccu_policy *ccu_policy, const char *ccu_name)
221{
222 struct bcm_lvm_en *enable = &ccu_policy->enable;
223 struct bcm_policy_ctl *control;
224
225 if (!bit_posn_valid(enable->bit, "policy enable", ccu_name))
226 return false;
227
228 control = &ccu_policy->control;
229 if (!bit_posn_valid(control->go_bit, "policy control GO", ccu_name))
230 return false;
231
232 if (!bit_posn_valid(control->atl_bit, "policy control ATL", ccu_name))
233 return false;
234
235 if (!bit_posn_valid(control->ac_bit, "policy control AC", ccu_name))
236 return false;
237
238 return true;
239}
240
241static bool policy_valid(struct bcm_clk_policy *policy, const char *clock_name)
242{
243 if (!bit_posn_valid(policy->bit, "policy", clock_name))
244 return false;
245
246 return true;
247}
248
170/* 249/*
171 * All gates, if defined, have a status bit, and for hardware-only 250 * All gates, if defined, have a status bit, and for hardware-only
172 * gates, that's it. Gates that can be software controlled also 251 * gates, that's it. Gates that can be software controlled also
@@ -196,6 +275,17 @@ static bool gate_valid(struct bcm_clk_gate *gate, const char *field_name,
196 return true; 275 return true;
197} 276}
198 277
278static bool hyst_valid(struct bcm_clk_hyst *hyst, const char *clock_name)
279{
280 if (!bit_posn_valid(hyst->en_bit, "hysteresis enable", clock_name))
281 return false;
282
283 if (!bit_posn_valid(hyst->val_bit, "hysteresis value", clock_name))
284 return false;
285
286 return true;
287}
288
199/* 289/*
200 * A selector bitfield must be valid. Its parent_sel array must 290 * A selector bitfield must be valid. Its parent_sel array must
201 * also be reasonable for the field. 291 * also be reasonable for the field.
@@ -312,7 +402,9 @@ static bool
312peri_clk_data_valid(struct kona_clk *bcm_clk) 402peri_clk_data_valid(struct kona_clk *bcm_clk)
313{ 403{
314 struct peri_clk_data *peri; 404 struct peri_clk_data *peri;
405 struct bcm_clk_policy *policy;
315 struct bcm_clk_gate *gate; 406 struct bcm_clk_gate *gate;
407 struct bcm_clk_hyst *hyst;
316 struct bcm_clk_sel *sel; 408 struct bcm_clk_sel *sel;
317 struct bcm_clk_div *div; 409 struct bcm_clk_div *div;
318 struct bcm_clk_div *pre_div; 410 struct bcm_clk_div *pre_div;
@@ -330,11 +422,20 @@ peri_clk_data_valid(struct kona_clk *bcm_clk)
330 return false; 422 return false;
331 423
332 peri = bcm_clk->u.peri; 424 peri = bcm_clk->u.peri;
333 name = bcm_clk->name; 425 name = bcm_clk->init_data.name;
426
427 policy = &peri->policy;
428 if (policy_exists(policy) && !policy_valid(policy, name))
429 return false;
430
334 gate = &peri->gate; 431 gate = &peri->gate;
335 if (gate_exists(gate) && !gate_valid(gate, "gate", name)) 432 if (gate_exists(gate) && !gate_valid(gate, "gate", name))
336 return false; 433 return false;
337 434
435 hyst = &peri->hyst;
436 if (hyst_exists(hyst) && !hyst_valid(hyst, name))
437 return false;
438
338 sel = &peri->sel; 439 sel = &peri->sel;
339 if (selector_exists(sel)) { 440 if (selector_exists(sel)) {
340 if (!sel_valid(sel, "selector", name)) 441 if (!sel_valid(sel, "selector", name))
@@ -567,7 +668,6 @@ static void peri_clk_teardown(struct peri_clk_data *data,
567 struct clk_init_data *init_data) 668 struct clk_init_data *init_data)
568{ 669{
569 clk_sel_teardown(&data->sel, init_data); 670 clk_sel_teardown(&data->sel, init_data);
570 init_data->ops = NULL;
571} 671}
572 672
573/* 673/*
@@ -576,10 +676,9 @@ static void peri_clk_teardown(struct peri_clk_data *data,
576 * that can be assigned if the clock has one or more parent clocks 676 * that can be assigned if the clock has one or more parent clocks
577 * associated with it. 677 * associated with it.
578 */ 678 */
579static int peri_clk_setup(struct ccu_data *ccu, struct peri_clk_data *data, 679static int
580 struct clk_init_data *init_data) 680peri_clk_setup(struct peri_clk_data *data, struct clk_init_data *init_data)
581{ 681{
582 init_data->ops = &kona_peri_clk_ops;
583 init_data->flags = CLK_IGNORE_UNUSED; 682 init_data->flags = CLK_IGNORE_UNUSED;
584 683
585 return clk_sel_setup(data->clocks, &data->sel, init_data); 684 return clk_sel_setup(data->clocks, &data->sel, init_data);
@@ -617,39 +716,26 @@ static void kona_clk_teardown(struct clk *clk)
617 bcm_clk_teardown(bcm_clk); 716 bcm_clk_teardown(bcm_clk);
618} 717}
619 718
620struct clk *kona_clk_setup(struct ccu_data *ccu, const char *name, 719struct clk *kona_clk_setup(struct kona_clk *bcm_clk)
621 enum bcm_clk_type type, void *data)
622{ 720{
623 struct kona_clk *bcm_clk; 721 struct clk_init_data *init_data = &bcm_clk->init_data;
624 struct clk_init_data *init_data;
625 struct clk *clk = NULL; 722 struct clk *clk = NULL;
626 723
627 bcm_clk = kzalloc(sizeof(*bcm_clk), GFP_KERNEL); 724 switch (bcm_clk->type) {
628 if (!bcm_clk) {
629 pr_err("%s: failed to allocate bcm_clk for %s\n", __func__,
630 name);
631 return NULL;
632 }
633 bcm_clk->ccu = ccu;
634 bcm_clk->name = name;
635
636 init_data = &bcm_clk->init_data;
637 init_data->name = name;
638 switch (type) {
639 case bcm_clk_peri: 725 case bcm_clk_peri:
640 if (peri_clk_setup(ccu, data, init_data)) 726 if (peri_clk_setup(bcm_clk->u.data, init_data))
641 goto out_free; 727 return NULL;
642 break; 728 break;
643 default: 729 default:
644 data = NULL; 730 pr_err("%s: clock type %d invalid for %s\n", __func__,
645 break; 731 (int)bcm_clk->type, init_data->name);
732 return NULL;
646 } 733 }
647 bcm_clk->type = type;
648 bcm_clk->u.data = data;
649 734
650 /* Make sure everything makes sense before we set it up */ 735 /* Make sure everything makes sense before we set it up */
651 if (!kona_clk_valid(bcm_clk)) { 736 if (!kona_clk_valid(bcm_clk)) {
652 pr_err("%s: clock data invalid for %s\n", __func__, name); 737 pr_err("%s: clock data invalid for %s\n", __func__,
738 init_data->name);
653 goto out_teardown; 739 goto out_teardown;
654 } 740 }
655 741
@@ -657,7 +743,7 @@ struct clk *kona_clk_setup(struct ccu_data *ccu, const char *name,
657 clk = clk_register(NULL, &bcm_clk->hw); 743 clk = clk_register(NULL, &bcm_clk->hw);
658 if (IS_ERR(clk)) { 744 if (IS_ERR(clk)) {
659 pr_err("%s: error registering clock %s (%ld)\n", __func__, 745 pr_err("%s: error registering clock %s (%ld)\n", __func__,
660 name, PTR_ERR(clk)); 746 init_data->name, PTR_ERR(clk));
661 goto out_teardown; 747 goto out_teardown;
662 } 748 }
663 BUG_ON(!clk); 749 BUG_ON(!clk);
@@ -665,8 +751,6 @@ struct clk *kona_clk_setup(struct ccu_data *ccu, const char *name,
665 return clk; 751 return clk;
666out_teardown: 752out_teardown:
667 bcm_clk_teardown(bcm_clk); 753 bcm_clk_teardown(bcm_clk);
668out_free:
669 kfree(bcm_clk);
670 754
671 return NULL; 755 return NULL;
672} 756}
@@ -675,50 +759,64 @@ static void ccu_clks_teardown(struct ccu_data *ccu)
675{ 759{
676 u32 i; 760 u32 i;
677 761
678 for (i = 0; i < ccu->data.clk_num; i++) 762 for (i = 0; i < ccu->clk_data.clk_num; i++)
679 kona_clk_teardown(ccu->data.clks[i]); 763 kona_clk_teardown(ccu->clk_data.clks[i]);
680 kfree(ccu->data.clks); 764 kfree(ccu->clk_data.clks);
681} 765}
682 766
683static void kona_ccu_teardown(struct ccu_data *ccu) 767static void kona_ccu_teardown(struct ccu_data *ccu)
684{ 768{
685 if (!ccu) 769 kfree(ccu->clk_data.clks);
686 return; 770 ccu->clk_data.clks = NULL;
687
688 if (!ccu->base) 771 if (!ccu->base)
689 goto done; 772 return;
690 773
691 of_clk_del_provider(ccu->node); /* safe if never added */ 774 of_clk_del_provider(ccu->node); /* safe if never added */
692 ccu_clks_teardown(ccu); 775 ccu_clks_teardown(ccu);
693 list_del(&ccu->links); 776 list_del(&ccu->links);
694 of_node_put(ccu->node); 777 of_node_put(ccu->node);
778 ccu->node = NULL;
695 iounmap(ccu->base); 779 iounmap(ccu->base);
696done: 780 ccu->base = NULL;
697 kfree(ccu->name); 781}
698 kfree(ccu); 782
783static bool ccu_data_valid(struct ccu_data *ccu)
784{
785 struct ccu_policy *ccu_policy;
786
787 if (!ccu_data_offsets_valid(ccu))
788 return false;
789
790 ccu_policy = &ccu->policy;
791 if (ccu_policy_exists(ccu_policy))
792 if (!ccu_policy_valid(ccu_policy, ccu->name))
793 return false;
794
795 return true;
699} 796}
700 797
701/* 798/*
702 * Set up a CCU. Call the provided ccu_clks_setup callback to 799 * Set up a CCU. Call the provided ccu_clks_setup callback to
703 * initialize the array of clocks provided by the CCU. 800 * initialize the array of clocks provided by the CCU.
704 */ 801 */
705void __init kona_dt_ccu_setup(struct device_node *node, 802void __init kona_dt_ccu_setup(struct ccu_data *ccu,
706 int (*ccu_clks_setup)(struct ccu_data *)) 803 struct device_node *node)
707{ 804{
708 struct ccu_data *ccu;
709 struct resource res = { 0 }; 805 struct resource res = { 0 };
710 resource_size_t range; 806 resource_size_t range;
807 unsigned int i;
711 int ret; 808 int ret;
712 809
713 ccu = kzalloc(sizeof(*ccu), GFP_KERNEL); 810 if (ccu->clk_data.clk_num) {
714 if (ccu) 811 size_t size;
715 ccu->name = kstrdup(node->name, GFP_KERNEL);
716 if (!ccu || !ccu->name) {
717 pr_err("%s: unable to allocate CCU struct for %s\n",
718 __func__, node->name);
719 kfree(ccu);
720 812
721 return; 813 size = ccu->clk_data.clk_num * sizeof(*ccu->clk_data.clks);
814 ccu->clk_data.clks = kzalloc(size, GFP_KERNEL);
815 if (!ccu->clk_data.clks) {
816 pr_err("%s: unable to allocate %u clocks for %s\n",
817 __func__, ccu->clk_data.clk_num, node->name);
818 return;
819 }
722 } 820 }
723 821
724 ret = of_address_to_resource(node, 0, &res); 822 ret = of_address_to_resource(node, 0, &res);
@@ -736,24 +834,33 @@ void __init kona_dt_ccu_setup(struct device_node *node,
736 } 834 }
737 835
738 ccu->range = (u32)range; 836 ccu->range = (u32)range;
837
838 if (!ccu_data_valid(ccu)) {
839 pr_err("%s: ccu data not valid for %s\n", __func__, node->name);
840 goto out_err;
841 }
842
739 ccu->base = ioremap(res.start, ccu->range); 843 ccu->base = ioremap(res.start, ccu->range);
740 if (!ccu->base) { 844 if (!ccu->base) {
741 pr_err("%s: unable to map CCU registers for %s\n", __func__, 845 pr_err("%s: unable to map CCU registers for %s\n", __func__,
742 node->name); 846 node->name);
743 goto out_err; 847 goto out_err;
744 } 848 }
745
746 spin_lock_init(&ccu->lock);
747 INIT_LIST_HEAD(&ccu->links);
748 ccu->node = of_node_get(node); 849 ccu->node = of_node_get(node);
749
750 list_add_tail(&ccu->links, &ccu_list); 850 list_add_tail(&ccu->links, &ccu_list);
751 851
752 /* Set up clocks array (in ccu->data) */ 852 /*
753 if (ccu_clks_setup(ccu)) 853 * Set up each defined kona clock and save the result in
754 goto out_err; 854 * the clock framework clock array (in ccu->data). Then
855 * register as a provider for these clocks.
856 */
857 for (i = 0; i < ccu->clk_data.clk_num; i++) {
858 if (!ccu->kona_clks[i].ccu)
859 continue;
860 ccu->clk_data.clks[i] = kona_clk_setup(&ccu->kona_clks[i]);
861 }
755 862
756 ret = of_clk_add_provider(node, of_clk_src_onecell_get, &ccu->data); 863 ret = of_clk_add_provider(node, of_clk_src_onecell_get, &ccu->clk_data);
757 if (ret) { 864 if (ret) {
758 pr_err("%s: error adding ccu %s as provider (%d)\n", __func__, 865 pr_err("%s: error adding ccu %s as provider (%d)\n", __func__,
759 node->name, ret); 866 node->name, ret);
diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c
index db11a87449f2..95af2e665dd3 100644
--- a/drivers/clk/bcm/clk-kona.c
+++ b/drivers/clk/bcm/clk-kona.c
@@ -16,6 +16,14 @@
16 16
17#include <linux/delay.h> 17#include <linux/delay.h>
18 18
19/*
20 * "Policies" affect the frequencies of bus clocks provided by a
21 * CCU. (I believe these polices are named "Deep Sleep", "Economy",
22 * "Normal", and "Turbo".) A lower policy number has lower power
23 * consumption, and policy 2 is the default.
24 */
25#define CCU_POLICY_COUNT 4
26
19#define CCU_ACCESS_PASSWORD 0xA5A500 27#define CCU_ACCESS_PASSWORD 0xA5A500
20#define CLK_GATE_DELAY_LOOP 2000 28#define CLK_GATE_DELAY_LOOP 2000
21 29
@@ -207,9 +215,154 @@ __ccu_wait_bit(struct ccu_data *ccu, u32 reg_offset, u32 bit, bool want)
207 return true; 215 return true;
208 udelay(1); 216 udelay(1);
209 } 217 }
218 pr_warn("%s: %s/0x%04x bit %u was never %s\n", __func__,
219 ccu->name, reg_offset, bit, want ? "set" : "clear");
220
210 return false; 221 return false;
211} 222}
212 223
224/* Policy operations */
225
226static bool __ccu_policy_engine_start(struct ccu_data *ccu, bool sync)
227{
228 struct bcm_policy_ctl *control = &ccu->policy.control;
229 u32 offset;
230 u32 go_bit;
231 u32 mask;
232 bool ret;
233
234 /* If we don't need to control policy for this CCU, we're done. */
235 if (!policy_ctl_exists(control))
236 return true;
237
238 offset = control->offset;
239 go_bit = control->go_bit;
240
241 /* Ensure we're not busy before we start */
242 ret = __ccu_wait_bit(ccu, offset, go_bit, false);
243 if (!ret) {
244 pr_err("%s: ccu %s policy engine wouldn't go idle\n",
245 __func__, ccu->name);
246 return false;
247 }
248
249 /*
250 * If it's a synchronous request, we'll wait for the voltage
251 * and frequency of the active load to stabilize before
252 * returning. To do this we select the active load by
253 * setting the ATL bit.
254 *
255 * An asynchronous request instead ramps the voltage in the
256 * background, and when that process stabilizes, the target
257 * load is copied to the active load and the CCU frequency
258 * is switched. We do this by selecting the target load
259 * (ATL bit clear) and setting the request auto-copy (AC bit
260 * set).
261 *
262 * Note, we do NOT read-modify-write this register.
263 */
264 mask = (u32)1 << go_bit;
265 if (sync)
266 mask |= 1 << control->atl_bit;
267 else
268 mask |= 1 << control->ac_bit;
269 __ccu_write(ccu, offset, mask);
270
271 /* Wait for indication that operation is complete. */
272 ret = __ccu_wait_bit(ccu, offset, go_bit, false);
273 if (!ret)
274 pr_err("%s: ccu %s policy engine never started\n",
275 __func__, ccu->name);
276
277 return ret;
278}
279
280static bool __ccu_policy_engine_stop(struct ccu_data *ccu)
281{
282 struct bcm_lvm_en *enable = &ccu->policy.enable;
283 u32 offset;
284 u32 enable_bit;
285 bool ret;
286
287 /* If we don't need to control policy for this CCU, we're done. */
288 if (!policy_lvm_en_exists(enable))
289 return true;
290
291 /* Ensure we're not busy before we start */
292 offset = enable->offset;
293 enable_bit = enable->bit;
294 ret = __ccu_wait_bit(ccu, offset, enable_bit, false);
295 if (!ret) {
296 pr_err("%s: ccu %s policy engine already stopped\n",
297 __func__, ccu->name);
298 return false;
299 }
300
301 /* Now set the bit to stop the engine (NO read-modify-write) */
302 __ccu_write(ccu, offset, (u32)1 << enable_bit);
303
304 /* Wait for indication that it has stopped. */
305 ret = __ccu_wait_bit(ccu, offset, enable_bit, false);
306 if (!ret)
307 pr_err("%s: ccu %s policy engine never stopped\n",
308 __func__, ccu->name);
309
310 return ret;
311}
312
313/*
314 * A CCU has four operating conditions ("policies"), and some clocks
315 * can be disabled or enabled based on which policy is currently in
316 * effect. Such clocks have a bit in a "policy mask" register for
317 * each policy indicating whether the clock is enabled for that
318 * policy or not. The bit position for a clock is the same for all
319 * four registers, and the 32-bit registers are at consecutive
320 * addresses.
321 */
322static bool policy_init(struct ccu_data *ccu, struct bcm_clk_policy *policy)
323{
324 u32 offset;
325 u32 mask;
326 int i;
327 bool ret;
328
329 if (!policy_exists(policy))
330 return true;
331
332 /*
333 * We need to stop the CCU policy engine to allow update
334 * of our policy bits.
335 */
336 if (!__ccu_policy_engine_stop(ccu)) {
337 pr_err("%s: unable to stop CCU %s policy engine\n",
338 __func__, ccu->name);
339 return false;
340 }
341
342 /*
343 * For now, if a clock defines its policy bit we just mark
344 * it "enabled" for all four policies.
345 */
346 offset = policy->offset;
347 mask = (u32)1 << policy->bit;
348 for (i = 0; i < CCU_POLICY_COUNT; i++) {
349 u32 reg_val;
350
351 reg_val = __ccu_read(ccu, offset);
352 reg_val |= mask;
353 __ccu_write(ccu, offset, reg_val);
354 offset += sizeof(u32);
355 }
356
357 /* We're done updating; fire up the policy engine again. */
358 ret = __ccu_policy_engine_start(ccu, true);
359 if (!ret)
360 pr_err("%s: unable to restart CCU %s policy engine\n",
361 __func__, ccu->name);
362
363 return ret;
364}
365
213/* Gate operations */ 366/* Gate operations */
214 367
215/* Determine whether a clock is gated. CCU lock must be held. */ 368/* Determine whether a clock is gated. CCU lock must be held. */
@@ -374,6 +527,35 @@ static int clk_gate(struct ccu_data *ccu, const char *name,
374 return -EIO; 527 return -EIO;
375} 528}
376 529
530/* Hysteresis operations */
531
532/*
533 * If a clock gate requires a turn-off delay it will have
534 * "hysteresis" register bits defined. The first, if set, enables
535 * the delay; and if enabled, the second bit determines whether the
536 * delay is "low" or "high" (1 means high). For now, if it's
537 * defined for a clock, we set it.
538 */
539static bool hyst_init(struct ccu_data *ccu, struct bcm_clk_hyst *hyst)
540{
541 u32 offset;
542 u32 reg_val;
543 u32 mask;
544
545 if (!hyst_exists(hyst))
546 return true;
547
548 offset = hyst->offset;
549 mask = (u32)1 << hyst->en_bit;
550 mask |= (u32)1 << hyst->val_bit;
551
552 reg_val = __ccu_read(ccu, offset);
553 reg_val |= mask;
554 __ccu_write(ccu, offset, reg_val);
555
556 return true;
557}
558
377/* Trigger operations */ 559/* Trigger operations */
378 560
379/* 561/*
@@ -806,7 +988,7 @@ static int kona_peri_clk_enable(struct clk_hw *hw)
806 struct kona_clk *bcm_clk = to_kona_clk(hw); 988 struct kona_clk *bcm_clk = to_kona_clk(hw);
807 struct bcm_clk_gate *gate = &bcm_clk->u.peri->gate; 989 struct bcm_clk_gate *gate = &bcm_clk->u.peri->gate;
808 990
809 return clk_gate(bcm_clk->ccu, bcm_clk->name, gate, true); 991 return clk_gate(bcm_clk->ccu, bcm_clk->init_data.name, gate, true);
810} 992}
811 993
812static void kona_peri_clk_disable(struct clk_hw *hw) 994static void kona_peri_clk_disable(struct clk_hw *hw)
@@ -814,7 +996,7 @@ static void kona_peri_clk_disable(struct clk_hw *hw)
814 struct kona_clk *bcm_clk = to_kona_clk(hw); 996 struct kona_clk *bcm_clk = to_kona_clk(hw);
815 struct bcm_clk_gate *gate = &bcm_clk->u.peri->gate; 997 struct bcm_clk_gate *gate = &bcm_clk->u.peri->gate;
816 998
817 (void)clk_gate(bcm_clk->ccu, bcm_clk->name, gate, false); 999 (void)clk_gate(bcm_clk->ccu, bcm_clk->init_data.name, gate, false);
818} 1000}
819 1001
820static int kona_peri_clk_is_enabled(struct clk_hw *hw) 1002static int kona_peri_clk_is_enabled(struct clk_hw *hw)
@@ -849,6 +1031,58 @@ static long kona_peri_clk_round_rate(struct clk_hw *hw, unsigned long rate,
849 rate ? rate : 1, *parent_rate, NULL); 1031 rate ? rate : 1, *parent_rate, NULL);
850} 1032}
851 1033
1034static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate,
1035 unsigned long *best_parent_rate, struct clk **best_parent)
1036{
1037 struct kona_clk *bcm_clk = to_kona_clk(hw);
1038 struct clk *clk = hw->clk;
1039 struct clk *current_parent;
1040 unsigned long parent_rate;
1041 unsigned long best_delta;
1042 unsigned long best_rate;
1043 u32 parent_count;
1044 u32 which;
1045
1046 /*
1047 * If there is no other parent to choose, use the current one.
1048 * Note: We don't honor (or use) CLK_SET_RATE_NO_REPARENT.
1049 */
1050 WARN_ON_ONCE(bcm_clk->init_data.flags & CLK_SET_RATE_NO_REPARENT);
1051 parent_count = (u32)bcm_clk->init_data.num_parents;
1052 if (parent_count < 2)
1053 return kona_peri_clk_round_rate(hw, rate, best_parent_rate);
1054
1055 /* Unless we can do better, stick with current parent */
1056 current_parent = clk_get_parent(clk);
1057 parent_rate = __clk_get_rate(current_parent);
1058 best_rate = kona_peri_clk_round_rate(hw, rate, &parent_rate);
1059 best_delta = abs(best_rate - rate);
1060
1061 /* Check whether any other parent clock can produce a better result */
1062 for (which = 0; which < parent_count; which++) {
1063 struct clk *parent = clk_get_parent_by_index(clk, which);
1064 unsigned long delta;
1065 unsigned long other_rate;
1066
1067 BUG_ON(!parent);
1068 if (parent == current_parent)
1069 continue;
1070
1071 /* We don't support CLK_SET_RATE_PARENT */
1072 parent_rate = __clk_get_rate(parent);
1073 other_rate = kona_peri_clk_round_rate(hw, rate, &parent_rate);
1074 delta = abs(other_rate - rate);
1075 if (delta < best_delta) {
1076 best_delta = delta;
1077 best_rate = other_rate;
1078 *best_parent = parent;
1079 *best_parent_rate = parent_rate;
1080 }
1081 }
1082
1083 return best_rate;
1084}
1085
852static int kona_peri_clk_set_parent(struct clk_hw *hw, u8 index) 1086static int kona_peri_clk_set_parent(struct clk_hw *hw, u8 index)
853{ 1087{
854 struct kona_clk *bcm_clk = to_kona_clk(hw); 1088 struct kona_clk *bcm_clk = to_kona_clk(hw);
@@ -872,12 +1106,13 @@ static int kona_peri_clk_set_parent(struct clk_hw *hw, u8 index)
872 1106
873 ret = selector_write(bcm_clk->ccu, &data->gate, sel, trig, index); 1107 ret = selector_write(bcm_clk->ccu, &data->gate, sel, trig, index);
874 if (ret == -ENXIO) { 1108 if (ret == -ENXIO) {
875 pr_err("%s: gating failure for %s\n", __func__, bcm_clk->name); 1109 pr_err("%s: gating failure for %s\n", __func__,
1110 bcm_clk->init_data.name);
876 ret = -EIO; /* Don't proliferate weird errors */ 1111 ret = -EIO; /* Don't proliferate weird errors */
877 } else if (ret == -EIO) { 1112 } else if (ret == -EIO) {
878 pr_err("%s: %strigger failed for %s\n", __func__, 1113 pr_err("%s: %strigger failed for %s\n", __func__,
879 trig == &data->pre_trig ? "pre-" : "", 1114 trig == &data->pre_trig ? "pre-" : "",
880 bcm_clk->name); 1115 bcm_clk->init_data.name);
881 } 1116 }
882 1117
883 return ret; 1118 return ret;
@@ -936,10 +1171,12 @@ static int kona_peri_clk_set_rate(struct clk_hw *hw, unsigned long rate,
936 ret = divider_write(bcm_clk->ccu, &data->gate, &data->div, 1171 ret = divider_write(bcm_clk->ccu, &data->gate, &data->div,
937 &data->trig, scaled_div); 1172 &data->trig, scaled_div);
938 if (ret == -ENXIO) { 1173 if (ret == -ENXIO) {
939 pr_err("%s: gating failure for %s\n", __func__, bcm_clk->name); 1174 pr_err("%s: gating failure for %s\n", __func__,
1175 bcm_clk->init_data.name);
940 ret = -EIO; /* Don't proliferate weird errors */ 1176 ret = -EIO; /* Don't proliferate weird errors */
941 } else if (ret == -EIO) { 1177 } else if (ret == -EIO) {
942 pr_err("%s: trigger failed for %s\n", __func__, bcm_clk->name); 1178 pr_err("%s: trigger failed for %s\n", __func__,
1179 bcm_clk->init_data.name);
943 } 1180 }
944 1181
945 return ret; 1182 return ret;
@@ -950,7 +1187,7 @@ struct clk_ops kona_peri_clk_ops = {
950 .disable = kona_peri_clk_disable, 1187 .disable = kona_peri_clk_disable,
951 .is_enabled = kona_peri_clk_is_enabled, 1188 .is_enabled = kona_peri_clk_is_enabled,
952 .recalc_rate = kona_peri_clk_recalc_rate, 1189 .recalc_rate = kona_peri_clk_recalc_rate,
953 .round_rate = kona_peri_clk_round_rate, 1190 .determine_rate = kona_peri_clk_determine_rate,
954 .set_parent = kona_peri_clk_set_parent, 1191 .set_parent = kona_peri_clk_set_parent,
955 .get_parent = kona_peri_clk_get_parent, 1192 .get_parent = kona_peri_clk_get_parent,
956 .set_rate = kona_peri_clk_set_rate, 1193 .set_rate = kona_peri_clk_set_rate,
@@ -961,15 +1198,24 @@ static bool __peri_clk_init(struct kona_clk *bcm_clk)
961{ 1198{
962 struct ccu_data *ccu = bcm_clk->ccu; 1199 struct ccu_data *ccu = bcm_clk->ccu;
963 struct peri_clk_data *peri = bcm_clk->u.peri; 1200 struct peri_clk_data *peri = bcm_clk->u.peri;
964 const char *name = bcm_clk->name; 1201 const char *name = bcm_clk->init_data.name;
965 struct bcm_clk_trig *trig; 1202 struct bcm_clk_trig *trig;
966 1203
967 BUG_ON(bcm_clk->type != bcm_clk_peri); 1204 BUG_ON(bcm_clk->type != bcm_clk_peri);
968 1205
1206 if (!policy_init(ccu, &peri->policy)) {
1207 pr_err("%s: error initializing policy for %s\n",
1208 __func__, name);
1209 return false;
1210 }
969 if (!gate_init(ccu, &peri->gate)) { 1211 if (!gate_init(ccu, &peri->gate)) {
970 pr_err("%s: error initializing gate for %s\n", __func__, name); 1212 pr_err("%s: error initializing gate for %s\n", __func__, name);
971 return false; 1213 return false;
972 } 1214 }
1215 if (!hyst_init(ccu, &peri->hyst)) {
1216 pr_err("%s: error initializing hyst for %s\n", __func__, name);
1217 return false;
1218 }
973 if (!div_init(ccu, &peri->gate, &peri->div, &peri->trig)) { 1219 if (!div_init(ccu, &peri->gate, &peri->div, &peri->trig)) {
974 pr_err("%s: error initializing divider for %s\n", __func__, 1220 pr_err("%s: error initializing divider for %s\n", __func__,
975 name); 1221 name);
@@ -1014,13 +1260,13 @@ bool __init kona_ccu_init(struct ccu_data *ccu)
1014{ 1260{
1015 unsigned long flags; 1261 unsigned long flags;
1016 unsigned int which; 1262 unsigned int which;
1017 struct clk **clks = ccu->data.clks; 1263 struct clk **clks = ccu->clk_data.clks;
1018 bool success = true; 1264 bool success = true;
1019 1265
1020 flags = ccu_lock(ccu); 1266 flags = ccu_lock(ccu);
1021 __ccu_write_enable(ccu); 1267 __ccu_write_enable(ccu);
1022 1268
1023 for (which = 0; which < ccu->data.clk_num; which++) { 1269 for (which = 0; which < ccu->clk_data.clk_num; which++) {
1024 struct kona_clk *bcm_clk; 1270 struct kona_clk *bcm_clk;
1025 1271
1026 if (!clks[which]) 1272 if (!clks[which])
diff --git a/drivers/clk/bcm/clk-kona.h b/drivers/clk/bcm/clk-kona.h
index dee690951bb6..2537b3072910 100644
--- a/drivers/clk/bcm/clk-kona.h
+++ b/drivers/clk/bcm/clk-kona.h
@@ -43,8 +43,14 @@
43#define FLAG_FLIP(obj, type, flag) ((obj)->flags ^= FLAG(type, flag)) 43#define FLAG_FLIP(obj, type, flag) ((obj)->flags ^= FLAG(type, flag))
44#define FLAG_TEST(obj, type, flag) (!!((obj)->flags & FLAG(type, flag))) 44#define FLAG_TEST(obj, type, flag) (!!((obj)->flags & FLAG(type, flag)))
45 45
46/* CCU field state tests */
47
48#define ccu_policy_exists(ccu_policy) ((ccu_policy)->enable.offset != 0)
49
46/* Clock field state tests */ 50/* Clock field state tests */
47 51
52#define policy_exists(policy) ((policy)->offset != 0)
53
48#define gate_exists(gate) FLAG_TEST(gate, GATE, EXISTS) 54#define gate_exists(gate) FLAG_TEST(gate, GATE, EXISTS)
49#define gate_is_enabled(gate) FLAG_TEST(gate, GATE, ENABLED) 55#define gate_is_enabled(gate) FLAG_TEST(gate, GATE, ENABLED)
50#define gate_is_hw_controllable(gate) FLAG_TEST(gate, GATE, HW) 56#define gate_is_hw_controllable(gate) FLAG_TEST(gate, GATE, HW)
@@ -54,6 +60,8 @@
54 60
55#define gate_flip_enabled(gate) FLAG_FLIP(gate, GATE, ENABLED) 61#define gate_flip_enabled(gate) FLAG_FLIP(gate, GATE, ENABLED)
56 62
63#define hyst_exists(hyst) ((hyst)->offset != 0)
64
57#define divider_exists(div) FLAG_TEST(div, DIV, EXISTS) 65#define divider_exists(div) FLAG_TEST(div, DIV, EXISTS)
58#define divider_is_fixed(div) FLAG_TEST(div, DIV, FIXED) 66#define divider_is_fixed(div) FLAG_TEST(div, DIV, FIXED)
59#define divider_has_fraction(div) (!divider_is_fixed(div) && \ 67#define divider_has_fraction(div) (!divider_is_fixed(div) && \
@@ -62,6 +70,9 @@
62#define selector_exists(sel) ((sel)->width != 0) 70#define selector_exists(sel) ((sel)->width != 0)
63#define trigger_exists(trig) FLAG_TEST(trig, TRIG, EXISTS) 71#define trigger_exists(trig) FLAG_TEST(trig, TRIG, EXISTS)
64 72
73#define policy_lvm_en_exists(enable) ((enable)->offset != 0)
74#define policy_ctl_exists(control) ((control)->offset != 0)
75
65/* Clock type, used to tell common block what it's part of */ 76/* Clock type, used to tell common block what it's part of */
66enum bcm_clk_type { 77enum bcm_clk_type {
67 bcm_clk_none, /* undefined clock type */ 78 bcm_clk_none, /* undefined clock type */
@@ -71,25 +82,26 @@ enum bcm_clk_type {
71}; 82};
72 83
73/* 84/*
74 * Each CCU defines a mapped area of memory containing registers 85 * CCU policy control for clocks. Clocks can be enabled or disabled
75 * used to manage clocks implemented by the CCU. Access to memory 86 * based on the CCU policy in effect. One bit in each policy mask
76 * within the CCU's space is serialized by a spinlock. Before any 87 * register (one per CCU policy) represents whether the clock is
77 * (other) address can be written, a special access "password" value 88 * enabled when that policy is effect or not. The CCU policy engine
78 * must be written to its WR_ACCESS register (located at the base 89 * must be stopped to update these bits, and must be restarted again
79 * address of the range). We keep track of the name of each CCU as 90 * afterward.
80 * it is set up, and maintain them in a list.
81 */ 91 */
82struct ccu_data { 92struct bcm_clk_policy {
83 void __iomem *base; /* base of mapped address space */ 93 u32 offset; /* first policy mask register offset */
84 spinlock_t lock; /* serialization lock */ 94 u32 bit; /* bit used in all mask registers */
85 bool write_enabled; /* write access is currently enabled */
86 struct list_head links; /* for ccu_list */
87 struct device_node *node;
88 struct clk_onecell_data data;
89 const char *name;
90 u32 range; /* byte range of address space */
91}; 95};
92 96
97/* Policy initialization macro */
98
99#define POLICY(_offset, _bit) \
100 { \
101 .offset = (_offset), \
102 .bit = (_bit), \
103 }
104
93/* 105/*
94 * Gating control and status is managed by a 32-bit gate register. 106 * Gating control and status is managed by a 32-bit gate register.
95 * 107 *
@@ -195,6 +207,22 @@ struct bcm_clk_gate {
195 .flags = FLAG(GATE, HW)|FLAG(GATE, EXISTS), \ 207 .flags = FLAG(GATE, HW)|FLAG(GATE, EXISTS), \
196 } 208 }
197 209
210/* Gate hysteresis for clocks */
211struct bcm_clk_hyst {
212 u32 offset; /* hyst register offset (normally CLKGATE) */
213 u32 en_bit; /* bit used to enable hysteresis */
214 u32 val_bit; /* if enabled: 0 = low delay; 1 = high delay */
215};
216
217/* Hysteresis initialization macro */
218
219#define HYST(_offset, _en_bit, _val_bit) \
220 { \
221 .offset = (_offset), \
222 .en_bit = (_en_bit), \
223 .val_bit = (_val_bit), \
224 }
225
198/* 226/*
199 * Each clock can have zero, one, or two dividers which change the 227 * Each clock can have zero, one, or two dividers which change the
200 * output rate of the clock. Each divider can be either fixed or 228 * output rate of the clock. Each divider can be either fixed or
@@ -360,7 +388,9 @@ struct bcm_clk_trig {
360 } 388 }
361 389
362struct peri_clk_data { 390struct peri_clk_data {
391 struct bcm_clk_policy policy;
363 struct bcm_clk_gate gate; 392 struct bcm_clk_gate gate;
393 struct bcm_clk_hyst hyst;
364 struct bcm_clk_trig pre_trig; 394 struct bcm_clk_trig pre_trig;
365 struct bcm_clk_div pre_div; 395 struct bcm_clk_div pre_div;
366 struct bcm_clk_trig trig; 396 struct bcm_clk_trig trig;
@@ -373,8 +403,7 @@ struct peri_clk_data {
373 403
374struct kona_clk { 404struct kona_clk {
375 struct clk_hw hw; 405 struct clk_hw hw;
376 struct clk_init_data init_data; 406 struct clk_init_data init_data; /* includes name of this clock */
377 const char *name; /* name of this clock */
378 struct ccu_data *ccu; /* ccu this clock is associated with */ 407 struct ccu_data *ccu; /* ccu this clock is associated with */
379 enum bcm_clk_type type; 408 enum bcm_clk_type type;
380 union { 409 union {
@@ -385,14 +414,92 @@ struct kona_clk {
385#define to_kona_clk(_hw) \ 414#define to_kona_clk(_hw) \
386 container_of(_hw, struct kona_clk, hw) 415 container_of(_hw, struct kona_clk, hw)
387 416
388/* Exported globals */ 417/* Initialization macro for an entry in a CCU's kona_clks[] array. */
418#define KONA_CLK(_ccu_name, _clk_name, _type) \
419 { \
420 .init_data = { \
421 .name = #_clk_name, \
422 .ops = &kona_ ## _type ## _clk_ops, \
423 }, \
424 .ccu = &_ccu_name ## _ccu_data, \
425 .type = bcm_clk_ ## _type, \
426 .u.data = &_clk_name ## _data, \
427 }
428#define LAST_KONA_CLK { .type = bcm_clk_none }
389 429
390extern struct clk_ops kona_peri_clk_ops; 430/*
431 * CCU policy control. To enable software update of the policy
432 * tables the CCU policy engine must be stopped by setting the
433 * software update enable bit (LVM_EN). After an update the engine
434 * is restarted using the GO bit and either the GO_ATL or GO_AC bit.
435 */
436struct bcm_lvm_en {
437 u32 offset; /* LVM_EN register offset */
438 u32 bit; /* POLICY_CONFIG_EN bit in register */
439};
440
441/* Policy enable initialization macro */
442#define CCU_LVM_EN(_offset, _bit) \
443 { \
444 .offset = (_offset), \
445 .bit = (_bit), \
446 }
447
448struct bcm_policy_ctl {
449 u32 offset; /* POLICY_CTL register offset */
450 u32 go_bit;
451 u32 atl_bit; /* GO, GO_ATL, and GO_AC bits */
452 u32 ac_bit;
453};
454
455/* Policy control initialization macro */
456#define CCU_POLICY_CTL(_offset, _go_bit, _ac_bit, _atl_bit) \
457 { \
458 .offset = (_offset), \
459 .go_bit = (_go_bit), \
460 .ac_bit = (_ac_bit), \
461 .atl_bit = (_atl_bit), \
462 }
463
464struct ccu_policy {
465 struct bcm_lvm_en enable;
466 struct bcm_policy_ctl control;
467};
468
469/*
470 * Each CCU defines a mapped area of memory containing registers
471 * used to manage clocks implemented by the CCU. Access to memory
472 * within the CCU's space is serialized by a spinlock. Before any
473 * (other) address can be written, a special access "password" value
474 * must be written to its WR_ACCESS register (located at the base
475 * address of the range). We keep track of the name of each CCU as
476 * it is set up, and maintain them in a list.
477 */
478struct ccu_data {
479 void __iomem *base; /* base of mapped address space */
480 spinlock_t lock; /* serialization lock */
481 bool write_enabled; /* write access is currently enabled */
482 struct ccu_policy policy;
483 struct list_head links; /* for ccu_list */
484 struct device_node *node;
485 struct clk_onecell_data clk_data;
486 const char *name;
487 u32 range; /* byte range of address space */
488 struct kona_clk kona_clks[]; /* must be last */
489};
391 490
392/* Help functions */ 491/* Initialization for common fields in a Kona ccu_data structure */
492#define KONA_CCU_COMMON(_prefix, _name, _ccuname) \
493 .name = #_name "_ccu", \
494 .lock = __SPIN_LOCK_UNLOCKED(_name ## _ccu_data.lock), \
495 .links = LIST_HEAD_INIT(_name ## _ccu_data.links), \
496 .clk_data = { \
497 .clk_num = _prefix ## _ ## _ccuname ## _CCU_CLOCK_COUNT, \
498 }
499
500/* Exported globals */
393 501
394#define PERI_CLK_SETUP(clks, ccu, id, name) \ 502extern struct clk_ops kona_peri_clk_ops;
395 clks[id] = kona_clk_setup(ccu, #name, bcm_clk_peri, &name ## _data)
396 503
397/* Externally visible functions */ 504/* Externally visible functions */
398 505
@@ -401,10 +508,9 @@ extern u64 scaled_div_max(struct bcm_clk_div *div);
401extern u64 scaled_div_build(struct bcm_clk_div *div, u32 div_value, 508extern u64 scaled_div_build(struct bcm_clk_div *div, u32 div_value,
402 u32 billionths); 509 u32 billionths);
403 510
404extern struct clk *kona_clk_setup(struct ccu_data *ccu, const char *name, 511extern struct clk *kona_clk_setup(struct kona_clk *bcm_clk);
405 enum bcm_clk_type type, void *data); 512extern void __init kona_dt_ccu_setup(struct ccu_data *ccu,
406extern void __init kona_dt_ccu_setup(struct device_node *node, 513 struct device_node *node);
407 int (*ccu_clks_setup)(struct ccu_data *));
408extern bool __init kona_ccu_init(struct ccu_data *ccu); 514extern bool __init kona_ccu_init(struct ccu_data *ccu);
409 515
410#endif /* _CLK_KONA_H */ 516#endif /* _CLK_KONA_H */
diff --git a/drivers/clk/berlin/Makefile b/drivers/clk/berlin/Makefile
new file mode 100644
index 000000000000..2a36ab710a07
--- /dev/null
+++ b/drivers/clk/berlin/Makefile
@@ -0,0 +1,4 @@
1obj-y += berlin2-avpll.o berlin2-pll.o berlin2-div.o
2obj-$(CONFIG_MACH_BERLIN_BG2) += bg2.o
3obj-$(CONFIG_MACH_BERLIN_BG2CD) += bg2.o
4obj-$(CONFIG_MACH_BERLIN_BG2Q) += bg2q.o
diff --git a/drivers/clk/berlin/berlin2-avpll.c b/drivers/clk/berlin/berlin2-avpll.c
new file mode 100644
index 000000000000..fd0f26c38465
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-avpll.c
@@ -0,0 +1,393 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#include <linux/clk-provider.h>
20#include <linux/io.h>
21#include <linux/kernel.h>
22#include <linux/of.h>
23#include <linux/of_address.h>
24#include <linux/slab.h>
25
26#include "berlin2-avpll.h"
27
28/*
29 * Berlin2 SoCs comprise up to two PLLs called AVPLL built upon a
30 * VCO with 8 channels each, channel 8 is the odd-one-out and does
31 * not provide mul/div.
32 *
33 * Unfortunately, its registers are not named but just numbered. To
34 * get in at least some kind of structure, we split each AVPLL into
35 * the VCOs and each channel into separate clock drivers.
36 *
37 * Also, here and there the VCO registers are a bit different with
38 * respect to bit shifts. Make sure to add a comment for those.
39 */
40#define NUM_CHANNELS 8
41
42#define AVPLL_CTRL(x) ((x) * 0x4)
43
44#define VCO_CTRL0 AVPLL_CTRL(0)
45/* BG2/BG2CDs VCO_B has an additional shift of 4 for its VCO_CTRL0 reg */
46#define VCO_RESET BIT(0)
47#define VCO_POWERUP BIT(1)
48#define VCO_INTERPOL_SHIFT 2
49#define VCO_INTERPOL_MASK (0xf << VCO_INTERPOL_SHIFT)
50#define VCO_REG1V45_SEL_SHIFT 6
51#define VCO_REG1V45_SEL(x) ((x) << VCO_REG1V45_SEL_SHIFT)
52#define VCO_REG1V45_SEL_1V40 VCO_REG1V45_SEL(0)
53#define VCO_REG1V45_SEL_1V45 VCO_REG1V45_SEL(1)
54#define VCO_REG1V45_SEL_1V50 VCO_REG1V45_SEL(2)
55#define VCO_REG1V45_SEL_1V55 VCO_REG1V45_SEL(3)
56#define VCO_REG1V45_SEL_MASK VCO_REG1V45_SEL(3)
57#define VCO_REG0V9_SEL_SHIFT 8
58#define VCO_REG0V9_SEL_MASK (0xf << VCO_REG0V9_SEL_SHIFT)
59#define VCO_VTHCAL_SHIFT 12
60#define VCO_VTHCAL(x) ((x) << VCO_VTHCAL_SHIFT)
61#define VCO_VTHCAL_0V90 VCO_VTHCAL(0)
62#define VCO_VTHCAL_0V95 VCO_VTHCAL(1)
63#define VCO_VTHCAL_1V00 VCO_VTHCAL(2)
64#define VCO_VTHCAL_1V05 VCO_VTHCAL(3)
65#define VCO_VTHCAL_MASK VCO_VTHCAL(3)
66#define VCO_KVCOEXT_SHIFT 14
67#define VCO_KVCOEXT_MASK (0x3 << VCO_KVCOEXT_SHIFT)
68#define VCO_KVCOEXT_ENABLE BIT(17)
69#define VCO_V2IEXT_SHIFT 18
70#define VCO_V2IEXT_MASK (0xf << VCO_V2IEXT_SHIFT)
71#define VCO_V2IEXT_ENABLE BIT(22)
72#define VCO_SPEED_SHIFT 23
73#define VCO_SPEED(x) ((x) << VCO_SPEED_SHIFT)
74#define VCO_SPEED_1G08_1G21 VCO_SPEED(0)
75#define VCO_SPEED_1G21_1G40 VCO_SPEED(1)
76#define VCO_SPEED_1G40_1G61 VCO_SPEED(2)
77#define VCO_SPEED_1G61_1G86 VCO_SPEED(3)
78#define VCO_SPEED_1G86_2G00 VCO_SPEED(4)
79#define VCO_SPEED_2G00_2G22 VCO_SPEED(5)
80#define VCO_SPEED_2G22 VCO_SPEED(6)
81#define VCO_SPEED_MASK VCO_SPEED(0x7)
82#define VCO_CLKDET_ENABLE BIT(26)
83#define VCO_CTRL1 AVPLL_CTRL(1)
84#define VCO_REFDIV_SHIFT 0
85#define VCO_REFDIV(x) ((x) << VCO_REFDIV_SHIFT)
86#define VCO_REFDIV_1 VCO_REFDIV(0)
87#define VCO_REFDIV_2 VCO_REFDIV(1)
88#define VCO_REFDIV_4 VCO_REFDIV(2)
89#define VCO_REFDIV_3 VCO_REFDIV(3)
90#define VCO_REFDIV_MASK VCO_REFDIV(0x3f)
91#define VCO_FBDIV_SHIFT 6
92#define VCO_FBDIV(x) ((x) << VCO_FBDIV_SHIFT)
93#define VCO_FBDIV_MASK VCO_FBDIV(0xff)
94#define VCO_ICP_SHIFT 14
95/* PLL Charge Pump Current = 10uA * (x + 1) */
96#define VCO_ICP(x) ((x) << VCO_ICP_SHIFT)
97#define VCO_ICP_MASK VCO_ICP(0xf)
98#define VCO_LOAD_CAP BIT(18)
99#define VCO_CALIBRATION_START BIT(19)
100#define VCO_FREQOFFSETn(x) AVPLL_CTRL(3 + (x))
101#define VCO_FREQOFFSET_MASK 0x7ffff
102#define VCO_CTRL10 AVPLL_CTRL(10)
103#define VCO_POWERUP_CH1 BIT(20)
104#define VCO_CTRL11 AVPLL_CTRL(11)
105#define VCO_CTRL12 AVPLL_CTRL(12)
106#define VCO_CTRL13 AVPLL_CTRL(13)
107#define VCO_CTRL14 AVPLL_CTRL(14)
108#define VCO_CTRL15 AVPLL_CTRL(15)
109#define VCO_SYNC1n(x) AVPLL_CTRL(15 + (x))
110#define VCO_SYNC1_MASK 0x1ffff
111#define VCO_SYNC2n(x) AVPLL_CTRL(23 + (x))
112#define VCO_SYNC2_MASK 0x1ffff
113#define VCO_CTRL30 AVPLL_CTRL(30)
114#define VCO_DPLL_CH1_ENABLE BIT(17)
115
116struct berlin2_avpll_vco {
117 struct clk_hw hw;
118 void __iomem *base;
119 u8 flags;
120};
121
122#define to_avpll_vco(hw) container_of(hw, struct berlin2_avpll_vco, hw)
123
124static int berlin2_avpll_vco_is_enabled(struct clk_hw *hw)
125{
126 struct berlin2_avpll_vco *vco = to_avpll_vco(hw);
127 u32 reg;
128
129 reg = readl_relaxed(vco->base + VCO_CTRL0);
130 if (vco->flags & BERLIN2_AVPLL_BIT_QUIRK)
131 reg >>= 4;
132
133 return !!(reg & VCO_POWERUP);
134}
135
136static int berlin2_avpll_vco_enable(struct clk_hw *hw)
137{
138 struct berlin2_avpll_vco *vco = to_avpll_vco(hw);
139 u32 reg;
140
141 reg = readl_relaxed(vco->base + VCO_CTRL0);
142 if (vco->flags & BERLIN2_AVPLL_BIT_QUIRK)
143 reg |= VCO_POWERUP << 4;
144 else
145 reg |= VCO_POWERUP;
146 writel_relaxed(reg, vco->base + VCO_CTRL0);
147
148 return 0;
149}
150
151static void berlin2_avpll_vco_disable(struct clk_hw *hw)
152{
153 struct berlin2_avpll_vco *vco = to_avpll_vco(hw);
154 u32 reg;
155
156 reg = readl_relaxed(vco->base + VCO_CTRL0);
157 if (vco->flags & BERLIN2_AVPLL_BIT_QUIRK)
158 reg &= ~(VCO_POWERUP << 4);
159 else
160 reg &= ~VCO_POWERUP;
161 writel_relaxed(reg, vco->base + VCO_CTRL0);
162}
163
164static u8 vco_refdiv[] = { 1, 2, 4, 3 };
165
166static unsigned long
167berlin2_avpll_vco_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
168{
169 struct berlin2_avpll_vco *vco = to_avpll_vco(hw);
170 u32 reg, refdiv, fbdiv;
171 u64 freq = parent_rate;
172
173 /* AVPLL VCO frequency: Fvco = (Fref / refdiv) * fbdiv */
174 reg = readl_relaxed(vco->base + VCO_CTRL1);
175 refdiv = (reg & VCO_REFDIV_MASK) >> VCO_REFDIV_SHIFT;
176 refdiv = vco_refdiv[refdiv];
177 fbdiv = (reg & VCO_FBDIV_MASK) >> VCO_FBDIV_SHIFT;
178 freq *= fbdiv;
179 do_div(freq, refdiv);
180
181 return (unsigned long)freq;
182}
183
184static const struct clk_ops berlin2_avpll_vco_ops = {
185 .is_enabled = berlin2_avpll_vco_is_enabled,
186 .enable = berlin2_avpll_vco_enable,
187 .disable = berlin2_avpll_vco_disable,
188 .recalc_rate = berlin2_avpll_vco_recalc_rate,
189};
190
191struct clk * __init berlin2_avpll_vco_register(void __iomem *base,
192 const char *name, const char *parent_name,
193 u8 vco_flags, unsigned long flags)
194{
195 struct berlin2_avpll_vco *vco;
196 struct clk_init_data init;
197
198 vco = kzalloc(sizeof(*vco), GFP_KERNEL);
199 if (!vco)
200 return ERR_PTR(-ENOMEM);
201
202 vco->base = base;
203 vco->flags = vco_flags;
204 vco->hw.init = &init;
205 init.name = name;
206 init.ops = &berlin2_avpll_vco_ops;
207 init.parent_names = &parent_name;
208 init.num_parents = 1;
209 init.flags = flags;
210
211 return clk_register(NULL, &vco->hw);
212}
213
214struct berlin2_avpll_channel {
215 struct clk_hw hw;
216 void __iomem *base;
217 u8 flags;
218 u8 index;
219};
220
221#define to_avpll_channel(hw) container_of(hw, struct berlin2_avpll_channel, hw)
222
223static int berlin2_avpll_channel_is_enabled(struct clk_hw *hw)
224{
225 struct berlin2_avpll_channel *ch = to_avpll_channel(hw);
226 u32 reg;
227
228 if (ch->index == 7)
229 return 1;
230
231 reg = readl_relaxed(ch->base + VCO_CTRL10);
232 reg &= VCO_POWERUP_CH1 << ch->index;
233
234 return !!reg;
235}
236
237static int berlin2_avpll_channel_enable(struct clk_hw *hw)
238{
239 struct berlin2_avpll_channel *ch = to_avpll_channel(hw);
240 u32 reg;
241
242 reg = readl_relaxed(ch->base + VCO_CTRL10);
243 reg |= VCO_POWERUP_CH1 << ch->index;
244 writel_relaxed(reg, ch->base + VCO_CTRL10);
245
246 return 0;
247}
248
249static void berlin2_avpll_channel_disable(struct clk_hw *hw)
250{
251 struct berlin2_avpll_channel *ch = to_avpll_channel(hw);
252 u32 reg;
253
254 reg = readl_relaxed(ch->base + VCO_CTRL10);
255 reg &= ~(VCO_POWERUP_CH1 << ch->index);
256 writel_relaxed(reg, ch->base + VCO_CTRL10);
257}
258
259static const u8 div_hdmi[] = { 1, 2, 4, 6 };
260static const u8 div_av1[] = { 1, 2, 5, 5 };
261
262static unsigned long
263berlin2_avpll_channel_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
264{
265 struct berlin2_avpll_channel *ch = to_avpll_channel(hw);
266 u32 reg, div_av2, div_av3, divider = 1;
267 u64 freq = parent_rate;
268
269 reg = readl_relaxed(ch->base + VCO_CTRL30);
270 if ((reg & (VCO_DPLL_CH1_ENABLE << ch->index)) == 0)
271 goto skip_div;
272
273 /*
274 * Fch = (Fref * sync2) /
275 * (sync1 * div_hdmi * div_av1 * div_av2 * div_av3)
276 */
277
278 reg = readl_relaxed(ch->base + VCO_SYNC1n(ch->index));
279 /* BG2/BG2CDs SYNC1 reg on AVPLL_B channel 1 is shifted by 4 */
280 if (ch->flags & BERLIN2_AVPLL_BIT_QUIRK && ch->index == 0)
281 reg >>= 4;
282 divider = reg & VCO_SYNC1_MASK;
283
284 reg = readl_relaxed(ch->base + VCO_SYNC2n(ch->index));
285 freq *= reg & VCO_SYNC2_MASK;
286
287 /* Channel 8 has no dividers */
288 if (ch->index == 7)
289 goto skip_div;
290
291 /*
292 * HDMI divider start at VCO_CTRL11, bit 7; MSB is enable, lower 2 bit
293 * determine divider.
294 */
295 reg = readl_relaxed(ch->base + VCO_CTRL11) >> 7;
296 reg = (reg >> (ch->index * 3));
297 if (reg & BIT(2))
298 divider *= div_hdmi[reg & 0x3];
299
300 /*
301 * AV1 divider start at VCO_CTRL11, bit 28; MSB is enable, lower 2 bit
302 * determine divider.
303 */
304 if (ch->index == 0) {
305 reg = readl_relaxed(ch->base + VCO_CTRL11);
306 reg >>= 28;
307 } else {
308 reg = readl_relaxed(ch->base + VCO_CTRL12);
309 reg >>= (ch->index-1) * 3;
310 }
311 if (reg & BIT(2))
312 divider *= div_av1[reg & 0x3];
313
314 /*
315 * AV2 divider start at VCO_CTRL12, bit 18; each 7 bits wide,
316 * zero is not a valid value.
317 */
318 if (ch->index < 2) {
319 reg = readl_relaxed(ch->base + VCO_CTRL12);
320 reg >>= 18 + (ch->index * 7);
321 } else if (ch->index < 7) {
322 reg = readl_relaxed(ch->base + VCO_CTRL13);
323 reg >>= (ch->index - 2) * 7;
324 } else {
325 reg = readl_relaxed(ch->base + VCO_CTRL14);
326 }
327 div_av2 = reg & 0x7f;
328 if (div_av2)
329 divider *= div_av2;
330
331 /*
332 * AV3 divider start at VCO_CTRL14, bit 7; each 4 bits wide.
333 * AV2/AV3 form a fractional divider, where only specfic values for AV3
334 * are allowed. AV3 != 0 divides by AV2/2, AV3=0 is bypass.
335 */
336 if (ch->index < 6) {
337 reg = readl_relaxed(ch->base + VCO_CTRL14);
338 reg >>= 7 + (ch->index * 4);
339 } else {
340 reg = readl_relaxed(ch->base + VCO_CTRL15);
341 }
342 div_av3 = reg & 0xf;
343 if (div_av2 && div_av3)
344 freq *= 2;
345
346skip_div:
347 do_div(freq, divider);
348 return (unsigned long)freq;
349}
350
351static const struct clk_ops berlin2_avpll_channel_ops = {
352 .is_enabled = berlin2_avpll_channel_is_enabled,
353 .enable = berlin2_avpll_channel_enable,
354 .disable = berlin2_avpll_channel_disable,
355 .recalc_rate = berlin2_avpll_channel_recalc_rate,
356};
357
358/*
359 * Another nice quirk:
360 * On some production SoCs, AVPLL channels are scrambled with respect
361 * to the channel numbering in the registers but still referenced by
362 * their original channel numbers. We deal with it by having a flag
363 * and a translation table for the index.
364 */
365static const u8 quirk_index[] __initconst = { 0, 6, 5, 4, 3, 2, 1, 7 };
366
367struct clk * __init berlin2_avpll_channel_register(void __iomem *base,
368 const char *name, u8 index, const char *parent_name,
369 u8 ch_flags, unsigned long flags)
370{
371 struct berlin2_avpll_channel *ch;
372 struct clk_init_data init;
373
374 ch = kzalloc(sizeof(*ch), GFP_KERNEL);
375 if (!ch)
376 return ERR_PTR(-ENOMEM);
377
378 ch->base = base;
379 if (ch_flags & BERLIN2_AVPLL_SCRAMBLE_QUIRK)
380 ch->index = quirk_index[index];
381 else
382 ch->index = index;
383
384 ch->flags = ch_flags;
385 ch->hw.init = &init;
386 init.name = name;
387 init.ops = &berlin2_avpll_channel_ops;
388 init.parent_names = &parent_name;
389 init.num_parents = 1;
390 init.flags = flags;
391
392 return clk_register(NULL, &ch->hw);
393}
diff --git a/drivers/clk/berlin/berlin2-avpll.h b/drivers/clk/berlin/berlin2-avpll.h
new file mode 100644
index 000000000000..a37f5068d299
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-avpll.h
@@ -0,0 +1,36 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef __BERLIN2_AVPLL_H
20#define __BERLIN2_AVPLL_H
21
22struct clk;
23
24#define BERLIN2_AVPLL_BIT_QUIRK BIT(0)
25#define BERLIN2_AVPLL_SCRAMBLE_QUIRK BIT(1)
26
27struct clk * __init
28berlin2_avpll_vco_register(void __iomem *base, const char *name,
29 const char *parent_name, u8 vco_flags, unsigned long flags);
30
31struct clk * __init
32berlin2_avpll_channel_register(void __iomem *base, const char *name,
33 u8 index, const char *parent_name, u8 ch_flags,
34 unsigned long flags);
35
36#endif /* __BERLIN2_AVPLL_H */
diff --git a/drivers/clk/berlin/berlin2-div.c b/drivers/clk/berlin/berlin2-div.c
new file mode 100644
index 000000000000..81ff97f8aa0b
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-div.c
@@ -0,0 +1,265 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#include <linux/bitops.h>
20#include <linux/clk-provider.h>
21#include <linux/of.h>
22#include <linux/of_address.h>
23#include <linux/slab.h>
24#include <linux/spinlock.h>
25
26#include "berlin2-div.h"
27
28/*
29 * Clock dividers in Berlin2 SoCs comprise a complex cell to select
30 * input pll and divider. The virtual structure as it is used in Marvell
31 * BSP code can be seen as:
32 *
33 * +---+
34 * pll0 --------------->| 0 | +---+
35 * +---+ |(B)|--+--------------->| 0 | +---+
36 * pll1.0 -->| 0 | +-->| 1 | | +--------+ |(E)|----->| 0 | +---+
37 * pll1.1 -->| 1 | | +---+ +-->|(C) 1:M |-->| 1 | |(F)|-->|(G)|->
38 * ... -->|(A)|--+ | +--------+ +---+ +-->| 1 | +---+
39 * ... -->| | +-->|(D) 1:3 |----------+ +---+
40 * pll1.N -->| N | +---------
41 * +---+
42 *
43 * (A) input pll clock mux controlled by <PllSelect[1:n]>
44 * (B) input pll bypass mux controlled by <PllSwitch>
45 * (C) programmable clock divider controlled by <Select[1:n]>
46 * (D) constant div-by-3 clock divider
47 * (E) programmable clock divider bypass controlled by <Switch>
48 * (F) constant div-by-3 clock mux controlled by <D3Switch>
49 * (G) clock gate controlled by <Enable>
50 *
51 * For whatever reason, above control signals come in two flavors:
52 * - single register dividers with all bits in one register
53 * - shared register dividers with bits spread over multiple registers
54 * (including signals for the same cell spread over consecutive registers)
55 *
56 * Also, clock gate and pll mux is not available on every div cell, so
57 * we have to deal with those, too. We reuse common clock composite driver
58 * for it.
59 */
60
61#define PLL_SELECT_MASK 0x7
62#define DIV_SELECT_MASK 0x7
63
64struct berlin2_div {
65 struct clk_hw hw;
66 void __iomem *base;
67 struct berlin2_div_map map;
68 spinlock_t *lock;
69};
70
71#define to_berlin2_div(hw) container_of(hw, struct berlin2_div, hw)
72
73static u8 clk_div[] = { 1, 2, 4, 6, 8, 12, 1, 1 };
74
75static int berlin2_div_is_enabled(struct clk_hw *hw)
76{
77 struct berlin2_div *div = to_berlin2_div(hw);
78 struct berlin2_div_map *map = &div->map;
79 u32 reg;
80
81 if (div->lock)
82 spin_lock(div->lock);
83
84 reg = readl_relaxed(div->base + map->gate_offs);
85 reg >>= map->gate_shift;
86
87 if (div->lock)
88 spin_unlock(div->lock);
89
90 return (reg & 0x1);
91}
92
93static int berlin2_div_enable(struct clk_hw *hw)
94{
95 struct berlin2_div *div = to_berlin2_div(hw);
96 struct berlin2_div_map *map = &div->map;
97 u32 reg;
98
99 if (div->lock)
100 spin_lock(div->lock);
101
102 reg = readl_relaxed(div->base + map->gate_offs);
103 reg |= BIT(map->gate_shift);
104 writel_relaxed(reg, div->base + map->gate_offs);
105
106 if (div->lock)
107 spin_unlock(div->lock);
108
109 return 0;
110}
111
112static void berlin2_div_disable(struct clk_hw *hw)
113{
114 struct berlin2_div *div = to_berlin2_div(hw);
115 struct berlin2_div_map *map = &div->map;
116 u32 reg;
117
118 if (div->lock)
119 spin_lock(div->lock);
120
121 reg = readl_relaxed(div->base + map->gate_offs);
122 reg &= ~BIT(map->gate_shift);
123 writel_relaxed(reg, div->base + map->gate_offs);
124
125 if (div->lock)
126 spin_unlock(div->lock);
127}
128
129static int berlin2_div_set_parent(struct clk_hw *hw, u8 index)
130{
131 struct berlin2_div *div = to_berlin2_div(hw);
132 struct berlin2_div_map *map = &div->map;
133 u32 reg;
134
135 if (div->lock)
136 spin_lock(div->lock);
137
138 /* index == 0 is PLL_SWITCH */
139 reg = readl_relaxed(div->base + map->pll_switch_offs);
140 if (index == 0)
141 reg &= ~BIT(map->pll_switch_shift);
142 else
143 reg |= BIT(map->pll_switch_shift);
144 writel_relaxed(reg, div->base + map->pll_switch_offs);
145
146 /* index > 0 is PLL_SELECT */
147 if (index > 0) {
148 reg = readl_relaxed(div->base + map->pll_select_offs);
149 reg &= ~(PLL_SELECT_MASK << map->pll_select_shift);
150 reg |= (index - 1) << map->pll_select_shift;
151 writel_relaxed(reg, div->base + map->pll_select_offs);
152 }
153
154 if (div->lock)
155 spin_unlock(div->lock);
156
157 return 0;
158}
159
160static u8 berlin2_div_get_parent(struct clk_hw *hw)
161{
162 struct berlin2_div *div = to_berlin2_div(hw);
163 struct berlin2_div_map *map = &div->map;
164 u32 reg;
165 u8 index = 0;
166
167 if (div->lock)
168 spin_lock(div->lock);
169
170 /* PLL_SWITCH == 0 is index 0 */
171 reg = readl_relaxed(div->base + map->pll_switch_offs);
172 reg &= BIT(map->pll_switch_shift);
173 if (reg) {
174 reg = readl_relaxed(div->base + map->pll_select_offs);
175 reg >>= map->pll_select_shift;
176 reg &= PLL_SELECT_MASK;
177 index = 1 + reg;
178 }
179
180 if (div->lock)
181 spin_unlock(div->lock);
182
183 return index;
184}
185
186static unsigned long berlin2_div_recalc_rate(struct clk_hw *hw,
187 unsigned long parent_rate)
188{
189 struct berlin2_div *div = to_berlin2_div(hw);
190 struct berlin2_div_map *map = &div->map;
191 u32 divsw, div3sw, divider = 1;
192
193 if (div->lock)
194 spin_lock(div->lock);
195
196 divsw = readl_relaxed(div->base + map->div_switch_offs) &
197 (1 << map->div_switch_shift);
198 div3sw = readl_relaxed(div->base + map->div3_switch_offs) &
199 (1 << map->div3_switch_shift);
200
201 /* constant divide-by-3 (dominant) */
202 if (div3sw != 0) {
203 divider = 3;
204 /* divider can be bypassed with DIV_SWITCH == 0 */
205 } else if (divsw == 0) {
206 divider = 1;
207 /* clock divider determined by DIV_SELECT */
208 } else {
209 u32 reg;
210 reg = readl_relaxed(div->base + map->div_select_offs);
211 reg >>= map->div_select_shift;
212 reg &= DIV_SELECT_MASK;
213 divider = clk_div[reg];
214 }
215
216 if (div->lock)
217 spin_unlock(div->lock);
218
219 return parent_rate / divider;
220}
221
222static const struct clk_ops berlin2_div_rate_ops = {
223 .recalc_rate = berlin2_div_recalc_rate,
224};
225
226static const struct clk_ops berlin2_div_gate_ops = {
227 .is_enabled = berlin2_div_is_enabled,
228 .enable = berlin2_div_enable,
229 .disable = berlin2_div_disable,
230};
231
232static const struct clk_ops berlin2_div_mux_ops = {
233 .set_parent = berlin2_div_set_parent,
234 .get_parent = berlin2_div_get_parent,
235};
236
237struct clk * __init
238berlin2_div_register(const struct berlin2_div_map *map,
239 void __iomem *base, const char *name, u8 div_flags,
240 const char **parent_names, int num_parents,
241 unsigned long flags, spinlock_t *lock)
242{
243 const struct clk_ops *mux_ops = &berlin2_div_mux_ops;
244 const struct clk_ops *rate_ops = &berlin2_div_rate_ops;
245 const struct clk_ops *gate_ops = &berlin2_div_gate_ops;
246 struct berlin2_div *div;
247
248 div = kzalloc(sizeof(*div), GFP_KERNEL);
249 if (!div)
250 return ERR_PTR(-ENOMEM);
251
252 /* copy div_map to allow __initconst */
253 memcpy(&div->map, map, sizeof(*map));
254 div->base = base;
255 div->lock = lock;
256
257 if ((div_flags & BERLIN2_DIV_HAS_GATE) == 0)
258 gate_ops = NULL;
259 if ((div_flags & BERLIN2_DIV_HAS_MUX) == 0)
260 mux_ops = NULL;
261
262 return clk_register_composite(NULL, name, parent_names, num_parents,
263 &div->hw, mux_ops, &div->hw, rate_ops,
264 &div->hw, gate_ops, flags);
265}
diff --git a/drivers/clk/berlin/berlin2-div.h b/drivers/clk/berlin/berlin2-div.h
new file mode 100644
index 000000000000..15e3384f3116
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-div.h
@@ -0,0 +1,89 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef __BERLIN2_DIV_H
20#define __BERLIN2_DIV_H
21
22struct clk;
23
24#define BERLIN2_DIV_HAS_GATE BIT(0)
25#define BERLIN2_DIV_HAS_MUX BIT(1)
26
27#define BERLIN2_PLL_SELECT(_off, _sh) \
28 .pll_select_offs = _off, \
29 .pll_select_shift = _sh
30
31#define BERLIN2_PLL_SWITCH(_off, _sh) \
32 .pll_switch_offs = _off, \
33 .pll_switch_shift = _sh
34
35#define BERLIN2_DIV_SELECT(_off, _sh) \
36 .div_select_offs = _off, \
37 .div_select_shift = _sh
38
39#define BERLIN2_DIV_SWITCH(_off, _sh) \
40 .div_switch_offs = _off, \
41 .div_switch_shift = _sh
42
43#define BERLIN2_DIV_D3SWITCH(_off, _sh) \
44 .div3_switch_offs = _off, \
45 .div3_switch_shift = _sh
46
47#define BERLIN2_DIV_GATE(_off, _sh) \
48 .gate_offs = _off, \
49 .gate_shift = _sh
50
51#define BERLIN2_SINGLE_DIV(_off) \
52 BERLIN2_DIV_GATE(_off, 0), \
53 BERLIN2_PLL_SELECT(_off, 1), \
54 BERLIN2_PLL_SWITCH(_off, 4), \
55 BERLIN2_DIV_SWITCH(_off, 5), \
56 BERLIN2_DIV_D3SWITCH(_off, 6), \
57 BERLIN2_DIV_SELECT(_off, 7)
58
59struct berlin2_div_map {
60 u16 pll_select_offs;
61 u16 pll_switch_offs;
62 u16 div_select_offs;
63 u16 div_switch_offs;
64 u16 div3_switch_offs;
65 u16 gate_offs;
66 u8 pll_select_shift;
67 u8 pll_switch_shift;
68 u8 div_select_shift;
69 u8 div_switch_shift;
70 u8 div3_switch_shift;
71 u8 gate_shift;
72};
73
74struct berlin2_div_data {
75 const char *name;
76 const u8 *parent_ids;
77 int num_parents;
78 unsigned long flags;
79 struct berlin2_div_map map;
80 u8 div_flags;
81};
82
83struct clk * __init
84berlin2_div_register(const struct berlin2_div_map *map,
85 void __iomem *base, const char *name, u8 div_flags,
86 const char **parent_names, int num_parents,
87 unsigned long flags, spinlock_t *lock);
88
89#endif /* __BERLIN2_DIV_H */
diff --git a/drivers/clk/berlin/berlin2-pll.c b/drivers/clk/berlin/berlin2-pll.c
new file mode 100644
index 000000000000..bdc506b03824
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-pll.c
@@ -0,0 +1,117 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#include <linux/clk-provider.h>
20#include <linux/io.h>
21#include <linux/kernel.h>
22#include <linux/of.h>
23#include <linux/of_address.h>
24#include <linux/slab.h>
25#include <asm/div64.h>
26
27#include "berlin2-div.h"
28
29struct berlin2_pll_map {
30 const u8 vcodiv[16];
31 u8 mult;
32 u8 fbdiv_shift;
33 u8 rfdiv_shift;
34 u8 divsel_shift;
35};
36
37struct berlin2_pll {
38 struct clk_hw hw;
39 void __iomem *base;
40 struct berlin2_pll_map map;
41};
42
43#define to_berlin2_pll(hw) container_of(hw, struct berlin2_pll, hw)
44
45#define SPLL_CTRL0 0x00
46#define SPLL_CTRL1 0x04
47#define SPLL_CTRL2 0x08
48#define SPLL_CTRL3 0x0c
49#define SPLL_CTRL4 0x10
50
51#define FBDIV_MASK 0x1ff
52#define RFDIV_MASK 0x1f
53#define DIVSEL_MASK 0xf
54
55/*
56 * The output frequency formula for the pll is:
57 * clkout = fbdiv / refdiv * parent / vcodiv
58 */
59static unsigned long
60berlin2_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
61{
62 struct berlin2_pll *pll = to_berlin2_pll(hw);
63 struct berlin2_pll_map *map = &pll->map;
64 u32 val, fbdiv, rfdiv, vcodivsel, vcodiv;
65 u64 rate = parent_rate;
66
67 val = readl_relaxed(pll->base + SPLL_CTRL0);
68 fbdiv = (val >> map->fbdiv_shift) & FBDIV_MASK;
69 rfdiv = (val >> map->rfdiv_shift) & RFDIV_MASK;
70 if (rfdiv == 0) {
71 pr_warn("%s has zero rfdiv\n", __clk_get_name(hw->clk));
72 rfdiv = 1;
73 }
74
75 val = readl_relaxed(pll->base + SPLL_CTRL1);
76 vcodivsel = (val >> map->divsel_shift) & DIVSEL_MASK;
77 vcodiv = map->vcodiv[vcodivsel];
78 if (vcodiv == 0) {
79 pr_warn("%s has zero vcodiv (index %d)\n",
80 __clk_get_name(hw->clk), vcodivsel);
81 vcodiv = 1;
82 }
83
84 rate *= fbdiv * map->mult;
85 do_div(rate, rfdiv * vcodiv);
86
87 return (unsigned long)rate;
88}
89
90static const struct clk_ops berlin2_pll_ops = {
91 .recalc_rate = berlin2_pll_recalc_rate,
92};
93
94struct clk * __init
95berlin2_pll_register(const struct berlin2_pll_map *map,
96 void __iomem *base, const char *name,
97 const char *parent_name, unsigned long flags)
98{
99 struct clk_init_data init;
100 struct berlin2_pll *pll;
101
102 pll = kzalloc(sizeof(*pll), GFP_KERNEL);
103 if (!pll)
104 return ERR_PTR(-ENOMEM);
105
106 /* copy pll_map to allow __initconst */
107 memcpy(&pll->map, map, sizeof(*map));
108 pll->base = base;
109 pll->hw.init = &init;
110 init.name = name;
111 init.ops = &berlin2_pll_ops;
112 init.parent_names = &parent_name;
113 init.num_parents = 1;
114 init.flags = flags;
115
116 return clk_register(NULL, &pll->hw);
117}
diff --git a/drivers/clk/berlin/berlin2-pll.h b/drivers/clk/berlin/berlin2-pll.h
new file mode 100644
index 000000000000..8831ce27ac1e
--- /dev/null
+++ b/drivers/clk/berlin/berlin2-pll.h
@@ -0,0 +1,37 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef __BERLIN2_PLL_H
20#define __BERLIN2_PLL_H
21
22struct clk;
23
24struct berlin2_pll_map {
25 const u8 vcodiv[16];
26 u8 mult;
27 u8 fbdiv_shift;
28 u8 rfdiv_shift;
29 u8 divsel_shift;
30};
31
32struct clk * __init
33berlin2_pll_register(const struct berlin2_pll_map *map,
34 void __iomem *base, const char *name,
35 const char *parent_name, unsigned long flags);
36
37#endif /* __BERLIN2_PLL_H */
diff --git a/drivers/clk/berlin/bg2.c b/drivers/clk/berlin/bg2.c
new file mode 100644
index 000000000000..515fb133495c
--- /dev/null
+++ b/drivers/clk/berlin/bg2.c
@@ -0,0 +1,691 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <linux/clk.h>
21#include <linux/clk-provider.h>
22#include <linux/kernel.h>
23#include <linux/of.h>
24#include <linux/of_address.h>
25#include <linux/slab.h>
26
27#include <dt-bindings/clock/berlin2.h>
28
29#include "berlin2-avpll.h"
30#include "berlin2-div.h"
31#include "berlin2-pll.h"
32#include "common.h"
33
34#define REG_PINMUX0 0x0000
35#define REG_PINMUX1 0x0004
36#define REG_SYSPLLCTL0 0x0014
37#define REG_SYSPLLCTL4 0x0024
38#define REG_MEMPLLCTL0 0x0028
39#define REG_MEMPLLCTL4 0x0038
40#define REG_CPUPLLCTL0 0x003c
41#define REG_CPUPLLCTL4 0x004c
42#define REG_AVPLLCTL0 0x0050
43#define REG_AVPLLCTL31 0x00cc
44#define REG_AVPLLCTL62 0x0148
45#define REG_PLLSTATUS 0x014c
46#define REG_CLKENABLE 0x0150
47#define REG_CLKSELECT0 0x0154
48#define REG_CLKSELECT1 0x0158
49#define REG_CLKSELECT2 0x015c
50#define REG_CLKSELECT3 0x0160
51#define REG_CLKSWITCH0 0x0164
52#define REG_CLKSWITCH1 0x0168
53#define REG_RESET_TRIGGER 0x0178
54#define REG_RESET_STATUS0 0x017c
55#define REG_RESET_STATUS1 0x0180
56#define REG_SW_GENERIC0 0x0184
57#define REG_SW_GENERIC3 0x0190
58#define REG_PRODUCTID 0x01cc
59#define REG_PRODUCTID_EXT 0x01d0
60#define REG_GFX3DCORE_CLKCTL 0x022c
61#define REG_GFX3DSYS_CLKCTL 0x0230
62#define REG_ARC_CLKCTL 0x0234
63#define REG_VIP_CLKCTL 0x0238
64#define REG_SDIO0XIN_CLKCTL 0x023c
65#define REG_SDIO1XIN_CLKCTL 0x0240
66#define REG_GFX3DEXTRA_CLKCTL 0x0244
67#define REG_GFX3D_RESET 0x0248
68#define REG_GC360_CLKCTL 0x024c
69#define REG_SDIO_DLLMST_CLKCTL 0x0250
70
71/*
72 * BG2/BG2CD SoCs have the following audio/video I/O units:
73 *
74 * audiohd: HDMI TX audio
75 * audio0: 7.1ch TX
76 * audio1: 2ch TX
77 * audio2: 2ch RX
78 * audio3: SPDIF TX
79 * video0: HDMI video
80 * video1: Secondary video
81 * video2: SD auxiliary video
82 *
83 * There are no external audio clocks (ACLKI0, ACLKI1) and
84 * only one external video clock (VCLKI0).
85 *
86 * Currently missing bits and pieces:
87 * - audio_fast_pll is unknown
88 * - audiohd_pll is unknown
89 * - video0_pll is unknown
90 * - audio[023], audiohd parent pll is assumed to be audio_fast_pll
91 *
92 */
93
94#define MAX_CLKS 41
95static struct clk *clks[MAX_CLKS];
96static struct clk_onecell_data clk_data;
97static DEFINE_SPINLOCK(lock);
98static void __iomem *gbase;
99
100enum {
101 REFCLK, VIDEO_EXT0,
102 SYSPLL, MEMPLL, CPUPLL,
103 AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4,
104 AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8,
105 AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
106 AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
107 AUDIO1_PLL, AUDIO_FAST_PLL,
108 VIDEO0_PLL, VIDEO0_IN,
109 VIDEO1_PLL, VIDEO1_IN,
110 VIDEO2_PLL, VIDEO2_IN,
111};
112
113static const char *clk_names[] = {
114 [REFCLK] = "refclk",
115 [VIDEO_EXT0] = "video_ext0",
116 [SYSPLL] = "syspll",
117 [MEMPLL] = "mempll",
118 [CPUPLL] = "cpupll",
119 [AVPLL_A1] = "avpll_a1",
120 [AVPLL_A2] = "avpll_a2",
121 [AVPLL_A3] = "avpll_a3",
122 [AVPLL_A4] = "avpll_a4",
123 [AVPLL_A5] = "avpll_a5",
124 [AVPLL_A6] = "avpll_a6",
125 [AVPLL_A7] = "avpll_a7",
126 [AVPLL_A8] = "avpll_a8",
127 [AVPLL_B1] = "avpll_b1",
128 [AVPLL_B2] = "avpll_b2",
129 [AVPLL_B3] = "avpll_b3",
130 [AVPLL_B4] = "avpll_b4",
131 [AVPLL_B5] = "avpll_b5",
132 [AVPLL_B6] = "avpll_b6",
133 [AVPLL_B7] = "avpll_b7",
134 [AVPLL_B8] = "avpll_b8",
135 [AUDIO1_PLL] = "audio1_pll",
136 [AUDIO_FAST_PLL] = "audio_fast_pll",
137 [VIDEO0_PLL] = "video0_pll",
138 [VIDEO0_IN] = "video0_in",
139 [VIDEO1_PLL] = "video1_pll",
140 [VIDEO1_IN] = "video1_in",
141 [VIDEO2_PLL] = "video2_pll",
142 [VIDEO2_IN] = "video2_in",
143};
144
145static const struct berlin2_pll_map bg2_pll_map __initconst = {
146 .vcodiv = {10, 15, 20, 25, 30, 40, 50, 60, 80},
147 .mult = 10,
148 .fbdiv_shift = 6,
149 .rfdiv_shift = 1,
150 .divsel_shift = 7,
151};
152
153static const u8 default_parent_ids[] = {
154 SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL
155};
156
157static const struct berlin2_div_data bg2_divs[] __initconst = {
158 {
159 .name = "sys",
160 .parent_ids = (const u8 []){
161 SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
162 },
163 .num_parents = 6,
164 .map = {
165 BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
166 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
167 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
168 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
169 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
170 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
171 },
172 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
173 .flags = CLK_IGNORE_UNUSED,
174 },
175 {
176 .name = "cpu",
177 .parent_ids = (const u8 []){
178 CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL
179 },
180 .num_parents = 5,
181 .map = {
182 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
183 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
184 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
185 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
186 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
187 },
188 .div_flags = BERLIN2_DIV_HAS_MUX,
189 .flags = 0,
190 },
191 {
192 .name = "drmfigo",
193 .parent_ids = default_parent_ids,
194 .num_parents = ARRAY_SIZE(default_parent_ids),
195 .map = {
196 BERLIN2_DIV_GATE(REG_CLKENABLE, 16),
197 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17),
198 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20),
199 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
200 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
201 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
202 },
203 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
204 .flags = 0,
205 },
206 {
207 .name = "cfg",
208 .parent_ids = default_parent_ids,
209 .num_parents = ARRAY_SIZE(default_parent_ids),
210 .map = {
211 BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
212 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23),
213 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26),
214 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
215 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
216 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
217 },
218 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
219 .flags = 0,
220 },
221 {
222 .name = "gfx",
223 .parent_ids = default_parent_ids,
224 .num_parents = ARRAY_SIZE(default_parent_ids),
225 .map = {
226 BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
227 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29),
228 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0),
229 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
230 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
231 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
232 },
233 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
234 .flags = 0,
235 },
236 {
237 .name = "zsp",
238 .parent_ids = default_parent_ids,
239 .num_parents = ARRAY_SIZE(default_parent_ids),
240 .map = {
241 BERLIN2_DIV_GATE(REG_CLKENABLE, 5),
242 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3),
243 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6),
244 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
245 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
246 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
247 },
248 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
249 .flags = 0,
250 },
251 {
252 .name = "perif",
253 .parent_ids = default_parent_ids,
254 .num_parents = ARRAY_SIZE(default_parent_ids),
255 .map = {
256 BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
257 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9),
258 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12),
259 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
260 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
261 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
262 },
263 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
264 .flags = CLK_IGNORE_UNUSED,
265 },
266 {
267 .name = "pcube",
268 .parent_ids = default_parent_ids,
269 .num_parents = ARRAY_SIZE(default_parent_ids),
270 .map = {
271 BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
272 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15),
273 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18),
274 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
275 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
276 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
277 },
278 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
279 .flags = 0,
280 },
281 {
282 .name = "vscope",
283 .parent_ids = default_parent_ids,
284 .num_parents = ARRAY_SIZE(default_parent_ids),
285 .map = {
286 BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
287 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21),
288 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24),
289 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
290 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
291 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
292 },
293 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
294 .flags = 0,
295 },
296 {
297 .name = "nfc_ecc",
298 .parent_ids = default_parent_ids,
299 .num_parents = ARRAY_SIZE(default_parent_ids),
300 .map = {
301 BERLIN2_DIV_GATE(REG_CLKENABLE, 18),
302 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27),
303 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0),
304 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
305 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
306 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
307 },
308 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
309 .flags = 0,
310 },
311 {
312 .name = "vpp",
313 .parent_ids = default_parent_ids,
314 .num_parents = ARRAY_SIZE(default_parent_ids),
315 .map = {
316 BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
317 BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3),
318 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6),
319 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4),
320 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5),
321 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6),
322 },
323 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
324 .flags = 0,
325 },
326 {
327 .name = "app",
328 .parent_ids = default_parent_ids,
329 .num_parents = ARRAY_SIZE(default_parent_ids),
330 .map = {
331 BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
332 BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9),
333 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12),
334 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7),
335 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8),
336 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9),
337 },
338 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
339 .flags = 0,
340 },
341 {
342 .name = "audio0",
343 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
344 .num_parents = 1,
345 .map = {
346 BERLIN2_DIV_GATE(REG_CLKENABLE, 22),
347 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17),
348 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10),
349 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11),
350 },
351 .div_flags = BERLIN2_DIV_HAS_GATE,
352 .flags = 0,
353 },
354 {
355 .name = "audio2",
356 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
357 .num_parents = 1,
358 .map = {
359 BERLIN2_DIV_GATE(REG_CLKENABLE, 24),
360 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20),
361 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14),
362 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15),
363 },
364 .div_flags = BERLIN2_DIV_HAS_GATE,
365 .flags = 0,
366 },
367 {
368 .name = "audio3",
369 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
370 .num_parents = 1,
371 .map = {
372 BERLIN2_DIV_GATE(REG_CLKENABLE, 25),
373 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23),
374 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16),
375 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17),
376 },
377 .div_flags = BERLIN2_DIV_HAS_GATE,
378 .flags = 0,
379 },
380 {
381 .name = "audio1",
382 .parent_ids = (const u8 []){ AUDIO1_PLL },
383 .num_parents = 1,
384 .map = {
385 BERLIN2_DIV_GATE(REG_CLKENABLE, 23),
386 BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0),
387 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12),
388 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13),
389 },
390 .div_flags = BERLIN2_DIV_HAS_GATE,
391 .flags = 0,
392 },
393 {
394 .name = "gfx3d_core",
395 .parent_ids = default_parent_ids,
396 .num_parents = ARRAY_SIZE(default_parent_ids),
397 .map = {
398 BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL),
399 },
400 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
401 .flags = 0,
402 },
403 {
404 .name = "gfx3d_sys",
405 .parent_ids = default_parent_ids,
406 .num_parents = ARRAY_SIZE(default_parent_ids),
407 .map = {
408 BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL),
409 },
410 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
411 .flags = 0,
412 },
413 {
414 .name = "arc",
415 .parent_ids = default_parent_ids,
416 .num_parents = ARRAY_SIZE(default_parent_ids),
417 .map = {
418 BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL),
419 },
420 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
421 .flags = 0,
422 },
423 {
424 .name = "vip",
425 .parent_ids = default_parent_ids,
426 .num_parents = ARRAY_SIZE(default_parent_ids),
427 .map = {
428 BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL),
429 },
430 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
431 .flags = 0,
432 },
433 {
434 .name = "sdio0xin",
435 .parent_ids = default_parent_ids,
436 .num_parents = ARRAY_SIZE(default_parent_ids),
437 .map = {
438 BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
439 },
440 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
441 .flags = 0,
442 },
443 {
444 .name = "sdio1xin",
445 .parent_ids = default_parent_ids,
446 .num_parents = ARRAY_SIZE(default_parent_ids),
447 .map = {
448 BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
449 },
450 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
451 .flags = 0,
452 },
453 {
454 .name = "gfx3d_extra",
455 .parent_ids = default_parent_ids,
456 .num_parents = ARRAY_SIZE(default_parent_ids),
457 .map = {
458 BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL),
459 },
460 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
461 .flags = 0,
462 },
463 {
464 .name = "gc360",
465 .parent_ids = default_parent_ids,
466 .num_parents = ARRAY_SIZE(default_parent_ids),
467 .map = {
468 BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL),
469 },
470 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
471 .flags = 0,
472 },
473 {
474 .name = "sdio_dllmst",
475 .parent_ids = default_parent_ids,
476 .num_parents = ARRAY_SIZE(default_parent_ids),
477 .map = {
478 BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL),
479 },
480 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
481 .flags = 0,
482 },
483};
484
485static const struct berlin2_gate_data bg2_gates[] __initconst = {
486 { "geth0", "perif", 7 },
487 { "geth1", "perif", 8 },
488 { "sata", "perif", 9 },
489 { "ahbapb", "perif", 10, CLK_IGNORE_UNUSED },
490 { "usb0", "perif", 11 },
491 { "usb1", "perif", 12 },
492 { "pbridge", "perif", 13, CLK_IGNORE_UNUSED },
493 { "sdio0", "perif", 14, CLK_IGNORE_UNUSED },
494 { "sdio1", "perif", 15, CLK_IGNORE_UNUSED },
495 { "nfc", "perif", 17 },
496 { "smemc", "perif", 19 },
497 { "audiohd", "audiohd_pll", 26 },
498 { "video0", "video0_in", 27 },
499 { "video1", "video1_in", 28 },
500 { "video2", "video2_in", 29 },
501};
502
503static void __init berlin2_clock_setup(struct device_node *np)
504{
505 const char *parent_names[9];
506 struct clk *clk;
507 u8 avpll_flags = 0;
508 int n;
509
510 gbase = of_iomap(np, 0);
511 if (!gbase)
512 return;
513
514 /* overwrite default clock names with DT provided ones */
515 clk = of_clk_get_by_name(np, clk_names[REFCLK]);
516 if (!IS_ERR(clk)) {
517 clk_names[REFCLK] = __clk_get_name(clk);
518 clk_put(clk);
519 }
520
521 clk = of_clk_get_by_name(np, clk_names[VIDEO_EXT0]);
522 if (!IS_ERR(clk)) {
523 clk_names[VIDEO_EXT0] = __clk_get_name(clk);
524 clk_put(clk);
525 }
526
527 /* simple register PLLs */
528 clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0,
529 clk_names[SYSPLL], clk_names[REFCLK], 0);
530 if (IS_ERR(clk))
531 goto bg2_fail;
532
533 clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0,
534 clk_names[MEMPLL], clk_names[REFCLK], 0);
535 if (IS_ERR(clk))
536 goto bg2_fail;
537
538 clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0,
539 clk_names[CPUPLL], clk_names[REFCLK], 0);
540 if (IS_ERR(clk))
541 goto bg2_fail;
542
543 if (of_device_is_compatible(np, "marvell,berlin2-global-register"))
544 avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK;
545
546 /* audio/video VCOs */
547 clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA",
548 clk_names[REFCLK], avpll_flags, 0);
549 if (IS_ERR(clk))
550 goto bg2_fail;
551
552 for (n = 0; n < 8; n++) {
553 clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0,
554 clk_names[AVPLL_A1 + n], n, "avpll_vcoA",
555 avpll_flags, 0);
556 if (IS_ERR(clk))
557 goto bg2_fail;
558 }
559
560 clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB",
561 clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK |
562 avpll_flags, 0);
563 if (IS_ERR(clk))
564 goto bg2_fail;
565
566 for (n = 0; n < 8; n++) {
567 clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31,
568 clk_names[AVPLL_B1 + n], n, "avpll_vcoB",
569 BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0);
570 if (IS_ERR(clk))
571 goto bg2_fail;
572 }
573
574 /* reference clock bypass switches */
575 parent_names[0] = clk_names[SYSPLL];
576 parent_names[1] = clk_names[REFCLK];
577 clk = clk_register_mux(NULL, "syspll_byp", parent_names, 2,
578 0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock);
579 if (IS_ERR(clk))
580 goto bg2_fail;
581 clk_names[SYSPLL] = __clk_get_name(clk);
582
583 parent_names[0] = clk_names[MEMPLL];
584 parent_names[1] = clk_names[REFCLK];
585 clk = clk_register_mux(NULL, "mempll_byp", parent_names, 2,
586 0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock);
587 if (IS_ERR(clk))
588 goto bg2_fail;
589 clk_names[MEMPLL] = __clk_get_name(clk);
590
591 parent_names[0] = clk_names[CPUPLL];
592 parent_names[1] = clk_names[REFCLK];
593 clk = clk_register_mux(NULL, "cpupll_byp", parent_names, 2,
594 0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock);
595 if (IS_ERR(clk))
596 goto bg2_fail;
597 clk_names[CPUPLL] = __clk_get_name(clk);
598
599 /* clock muxes */
600 parent_names[0] = clk_names[AVPLL_B3];
601 parent_names[1] = clk_names[AVPLL_A3];
602 clk = clk_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2,
603 0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock);
604 if (IS_ERR(clk))
605 goto bg2_fail;
606
607 parent_names[0] = clk_names[VIDEO0_PLL];
608 parent_names[1] = clk_names[VIDEO_EXT0];
609 clk = clk_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2,
610 0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock);
611 if (IS_ERR(clk))
612 goto bg2_fail;
613
614 parent_names[0] = clk_names[VIDEO1_PLL];
615 parent_names[1] = clk_names[VIDEO_EXT0];
616 clk = clk_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2,
617 0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock);
618 if (IS_ERR(clk))
619 goto bg2_fail;
620
621 parent_names[0] = clk_names[AVPLL_A2];
622 parent_names[1] = clk_names[AVPLL_B2];
623 clk = clk_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2,
624 0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock);
625 if (IS_ERR(clk))
626 goto bg2_fail;
627
628 parent_names[0] = clk_names[VIDEO2_PLL];
629 parent_names[1] = clk_names[VIDEO_EXT0];
630 clk = clk_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2,
631 0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock);
632 if (IS_ERR(clk))
633 goto bg2_fail;
634
635 parent_names[0] = clk_names[AVPLL_B1];
636 parent_names[1] = clk_names[AVPLL_A5];
637 clk = clk_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2,
638 0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock);
639 if (IS_ERR(clk))
640 goto bg2_fail;
641
642 /* clock divider cells */
643 for (n = 0; n < ARRAY_SIZE(bg2_divs); n++) {
644 const struct berlin2_div_data *dd = &bg2_divs[n];
645 int k;
646
647 for (k = 0; k < dd->num_parents; k++)
648 parent_names[k] = clk_names[dd->parent_ids[k]];
649
650 clks[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
651 dd->name, dd->div_flags, parent_names,
652 dd->num_parents, dd->flags, &lock);
653 }
654
655 /* clock gate cells */
656 for (n = 0; n < ARRAY_SIZE(bg2_gates); n++) {
657 const struct berlin2_gate_data *gd = &bg2_gates[n];
658
659 clks[CLKID_GETH0 + n] = clk_register_gate(NULL, gd->name,
660 gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
661 gd->bit_idx, 0, &lock);
662 }
663
664 /* twdclk is derived from cpu/3 */
665 clks[CLKID_TWD] =
666 clk_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3);
667
668 /* check for errors on leaf clocks */
669 for (n = 0; n < MAX_CLKS; n++) {
670 if (!IS_ERR(clks[n]))
671 continue;
672
673 pr_err("%s: Unable to register leaf clock %d\n",
674 np->full_name, n);
675 goto bg2_fail;
676 }
677
678 /* register clk-provider */
679 clk_data.clks = clks;
680 clk_data.clk_num = MAX_CLKS;
681 of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
682
683 return;
684
685bg2_fail:
686 iounmap(gbase);
687}
688CLK_OF_DECLARE(berlin2_clock, "marvell,berlin2-chip-ctrl",
689 berlin2_clock_setup);
690CLK_OF_DECLARE(berlin2cd_clock, "marvell,berlin2cd-chip-ctrl",
691 berlin2_clock_setup);
diff --git a/drivers/clk/berlin/bg2q.c b/drivers/clk/berlin/bg2q.c
new file mode 100644
index 000000000000..21784e4eb3f0
--- /dev/null
+++ b/drivers/clk/berlin/bg2q.c
@@ -0,0 +1,389 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <linux/clk.h>
21#include <linux/clk-provider.h>
22#include <linux/kernel.h>
23#include <linux/of.h>
24#include <linux/of_address.h>
25#include <linux/slab.h>
26
27#include <dt-bindings/clock/berlin2q.h>
28
29#include "berlin2-div.h"
30#include "berlin2-pll.h"
31#include "common.h"
32
33#define REG_PINMUX0 0x0018
34#define REG_PINMUX5 0x002c
35#define REG_SYSPLLCTL0 0x0030
36#define REG_SYSPLLCTL4 0x0040
37#define REG_CLKENABLE 0x00e8
38#define REG_CLKSELECT0 0x00ec
39#define REG_CLKSELECT1 0x00f0
40#define REG_CLKSELECT2 0x00f4
41#define REG_CLKSWITCH0 0x00f8
42#define REG_CLKSWITCH1 0x00fc
43#define REG_SW_GENERIC0 0x0110
44#define REG_SW_GENERIC3 0x011c
45#define REG_SDIO0XIN_CLKCTL 0x0158
46#define REG_SDIO1XIN_CLKCTL 0x015c
47
48#define MAX_CLKS 27
49static struct clk *clks[MAX_CLKS];
50static struct clk_onecell_data clk_data;
51static DEFINE_SPINLOCK(lock);
52static void __iomem *gbase;
53static void __iomem *cpupll_base;
54
55enum {
56 REFCLK,
57 SYSPLL, CPUPLL,
58 AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
59 AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
60};
61
62static const char *clk_names[] = {
63 [REFCLK] = "refclk",
64 [SYSPLL] = "syspll",
65 [CPUPLL] = "cpupll",
66 [AVPLL_B1] = "avpll_b1",
67 [AVPLL_B2] = "avpll_b2",
68 [AVPLL_B3] = "avpll_b3",
69 [AVPLL_B4] = "avpll_b4",
70 [AVPLL_B5] = "avpll_b5",
71 [AVPLL_B6] = "avpll_b6",
72 [AVPLL_B7] = "avpll_b7",
73 [AVPLL_B8] = "avpll_b8",
74};
75
76static const struct berlin2_pll_map bg2q_pll_map __initconst = {
77 .vcodiv = {1, 0, 2, 0, 3, 4, 0, 6, 8},
78 .mult = 1,
79 .fbdiv_shift = 7,
80 .rfdiv_shift = 2,
81 .divsel_shift = 9,
82};
83
84static const u8 default_parent_ids[] = {
85 SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
86};
87
88static const struct berlin2_div_data bg2q_divs[] __initconst = {
89 {
90 .name = "sys",
91 .parent_ids = default_parent_ids,
92 .num_parents = ARRAY_SIZE(default_parent_ids),
93 .map = {
94 BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
95 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
96 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
97 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
98 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
99 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
100 },
101 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
102 .flags = CLK_IGNORE_UNUSED,
103 },
104 {
105 .name = "drmfigo",
106 .parent_ids = default_parent_ids,
107 .num_parents = ARRAY_SIZE(default_parent_ids),
108 .map = {
109 BERLIN2_DIV_GATE(REG_CLKENABLE, 17),
110 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
111 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
112 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
113 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
114 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
115 },
116 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
117 .flags = 0,
118 },
119 {
120 .name = "cfg",
121 .parent_ids = default_parent_ids,
122 .num_parents = ARRAY_SIZE(default_parent_ids),
123 .map = {
124 BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
125 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 12),
126 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 15),
127 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 9),
128 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 10),
129 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 11),
130 },
131 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
132 .flags = 0,
133 },
134 {
135 .name = "gfx2d",
136 .parent_ids = default_parent_ids,
137 .num_parents = ARRAY_SIZE(default_parent_ids),
138 .map = {
139 BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
140 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 18),
141 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 21),
142 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
143 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
144 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
145 },
146 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
147 .flags = 0,
148 },
149 {
150 .name = "zsp",
151 .parent_ids = default_parent_ids,
152 .num_parents = ARRAY_SIZE(default_parent_ids),
153 .map = {
154 BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
155 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 24),
156 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 27),
157 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
158 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
159 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
160 },
161 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
162 .flags = 0,
163 },
164 {
165 .name = "perif",
166 .parent_ids = default_parent_ids,
167 .num_parents = ARRAY_SIZE(default_parent_ids),
168 .map = {
169 BERLIN2_DIV_GATE(REG_CLKENABLE, 7),
170 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 0),
171 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 3),
172 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
173 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
174 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
175 },
176 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
177 .flags = CLK_IGNORE_UNUSED,
178 },
179 {
180 .name = "pcube",
181 .parent_ids = default_parent_ids,
182 .num_parents = ARRAY_SIZE(default_parent_ids),
183 .map = {
184 BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
185 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 6),
186 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 9),
187 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
188 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
189 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
190 },
191 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
192 .flags = 0,
193 },
194 {
195 .name = "vscope",
196 .parent_ids = default_parent_ids,
197 .num_parents = ARRAY_SIZE(default_parent_ids),
198 .map = {
199 BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
200 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 12),
201 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 15),
202 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
203 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
204 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
205 },
206 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
207 .flags = 0,
208 },
209 {
210 .name = "nfc_ecc",
211 .parent_ids = default_parent_ids,
212 .num_parents = ARRAY_SIZE(default_parent_ids),
213 .map = {
214 BERLIN2_DIV_GATE(REG_CLKENABLE, 19),
215 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 18),
216 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 21),
217 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
218 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
219 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
220 },
221 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
222 .flags = 0,
223 },
224 {
225 .name = "vpp",
226 .parent_ids = default_parent_ids,
227 .num_parents = ARRAY_SIZE(default_parent_ids),
228 .map = {
229 BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
230 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 24),
231 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 27),
232 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
233 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
234 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
235 },
236 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
237 .flags = 0,
238 },
239 {
240 .name = "app",
241 .parent_ids = default_parent_ids,
242 .num_parents = ARRAY_SIZE(default_parent_ids),
243 .map = {
244 BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
245 BERLIN2_PLL_SELECT(REG_CLKSELECT2, 0),
246 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 3),
247 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
248 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
249 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
250 },
251 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
252 .flags = 0,
253 },
254 {
255 .name = "sdio0xin",
256 .parent_ids = default_parent_ids,
257 .num_parents = ARRAY_SIZE(default_parent_ids),
258 .map = {
259 BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
260 },
261 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
262 .flags = 0,
263 },
264 {
265 .name = "sdio1xin",
266 .parent_ids = default_parent_ids,
267 .num_parents = ARRAY_SIZE(default_parent_ids),
268 .map = {
269 BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
270 },
271 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
272 .flags = 0,
273 },
274};
275
276static const struct berlin2_gate_data bg2q_gates[] __initconst = {
277 { "gfx2daxi", "perif", 5 },
278 { "geth0", "perif", 8 },
279 { "sata", "perif", 9 },
280 { "ahbapb", "perif", 10, CLK_IGNORE_UNUSED },
281 { "usb0", "perif", 11 },
282 { "usb1", "perif", 12 },
283 { "usb2", "perif", 13 },
284 { "usb3", "perif", 14 },
285 { "pbridge", "perif", 15, CLK_IGNORE_UNUSED },
286 { "sdio", "perif", 16, CLK_IGNORE_UNUSED },
287 { "nfc", "perif", 18 },
288 { "smemc", "perif", 19 },
289 { "pcie", "perif", 22 },
290};
291
292static void __init berlin2q_clock_setup(struct device_node *np)
293{
294 const char *parent_names[9];
295 struct clk *clk;
296 int n;
297
298 gbase = of_iomap(np, 0);
299 if (!gbase) {
300 pr_err("%s: Unable to map global base\n", np->full_name);
301 return;
302 }
303
304 /* BG2Q CPU PLL is not part of global registers */
305 cpupll_base = of_iomap(np, 1);
306 if (!cpupll_base) {
307 pr_err("%s: Unable to map cpupll base\n", np->full_name);
308 iounmap(gbase);
309 return;
310 }
311
312 /* overwrite default clock names with DT provided ones */
313 clk = of_clk_get_by_name(np, clk_names[REFCLK]);
314 if (!IS_ERR(clk)) {
315 clk_names[REFCLK] = __clk_get_name(clk);
316 clk_put(clk);
317 }
318
319 /* simple register PLLs */
320 clk = berlin2_pll_register(&bg2q_pll_map, gbase + REG_SYSPLLCTL0,
321 clk_names[SYSPLL], clk_names[REFCLK], 0);
322 if (IS_ERR(clk))
323 goto bg2q_fail;
324
325 clk = berlin2_pll_register(&bg2q_pll_map, cpupll_base,
326 clk_names[CPUPLL], clk_names[REFCLK], 0);
327 if (IS_ERR(clk))
328 goto bg2q_fail;
329
330 /* TODO: add BG2Q AVPLL */
331
332 /*
333 * TODO: add reference clock bypass switches:
334 * memPLLSWBypass, cpuPLLSWBypass, and sysPLLSWBypass
335 */
336
337 /* clock divider cells */
338 for (n = 0; n < ARRAY_SIZE(bg2q_divs); n++) {
339 const struct berlin2_div_data *dd = &bg2q_divs[n];
340 int k;
341
342 for (k = 0; k < dd->num_parents; k++)
343 parent_names[k] = clk_names[dd->parent_ids[k]];
344
345 clks[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
346 dd->name, dd->div_flags, parent_names,
347 dd->num_parents, dd->flags, &lock);
348 }
349
350 /* clock gate cells */
351 for (n = 0; n < ARRAY_SIZE(bg2q_gates); n++) {
352 const struct berlin2_gate_data *gd = &bg2q_gates[n];
353
354 clks[CLKID_GFX2DAXI + n] = clk_register_gate(NULL, gd->name,
355 gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
356 gd->bit_idx, 0, &lock);
357 }
358
359 /*
360 * twdclk is derived from cpu/3
361 * TODO: use cpupll until cpuclk is not available
362 */
363 clks[CLKID_TWD] =
364 clk_register_fixed_factor(NULL, "twd", clk_names[CPUPLL],
365 0, 1, 3);
366
367 /* check for errors on leaf clocks */
368 for (n = 0; n < MAX_CLKS; n++) {
369 if (!IS_ERR(clks[n]))
370 continue;
371
372 pr_err("%s: Unable to register leaf clock %d\n",
373 np->full_name, n);
374 goto bg2q_fail;
375 }
376
377 /* register clk-provider */
378 clk_data.clks = clks;
379 clk_data.clk_num = MAX_CLKS;
380 of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
381
382 return;
383
384bg2q_fail:
385 iounmap(cpupll_base);
386 iounmap(gbase);
387}
388CLK_OF_DECLARE(berlin2q_clock, "marvell,berlin2q-chip-ctrl",
389 berlin2q_clock_setup);
diff --git a/drivers/clk/berlin/common.h b/drivers/clk/berlin/common.h
new file mode 100644
index 000000000000..bc68a14c4550
--- /dev/null
+++ b/drivers/clk/berlin/common.h
@@ -0,0 +1,29 @@
1/*
2 * Copyright (c) 2014 Marvell Technology Group Ltd.
3 *
4 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 * Alexandre Belloni <alexandre.belloni@free-electrons.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms and conditions of the GNU General Public License,
9 * version 2, as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef __BERLIN2_COMMON_H
20#define __BERLIN2_COMMON_H
21
22struct berlin2_gate_data {
23 const char *name;
24 const char *parent_name;
25 u8 bit_idx;
26 unsigned long flags;
27};
28
29#endif /* BERLIN2_COMMON_H */
diff --git a/drivers/clk/clk-axm5516.c b/drivers/clk/clk-axm5516.c
new file mode 100644
index 000000000000..d2f1e119b450
--- /dev/null
+++ b/drivers/clk/clk-axm5516.c
@@ -0,0 +1,615 @@
1/*
2 * drivers/clk/clk-axm5516.c
3 *
4 * Provides clock implementations for three different types of clock devices on
5 * the Axxia device: PLL clock, a clock divider and a clock mux.
6 *
7 * Copyright (C) 2014 LSI Corporation
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License version 2 as published by
11 * the Free Software Foundation.
12 */
13#include <linux/module.h>
14#include <linux/kernel.h>
15#include <linux/slab.h>
16#include <linux/platform_device.h>
17#include <linux/of.h>
18#include <linux/of_address.h>
19#include <linux/clk-provider.h>
20#include <linux/regmap.h>
21#include <dt-bindings/clock/lsi,axm5516-clks.h>
22
23
24/**
25 * struct axxia_clk - Common struct to all Axxia clocks.
26 * @hw: clk_hw for the common clk framework
27 * @regmap: Regmap for the clock control registers
28 */
29struct axxia_clk {
30 struct clk_hw hw;
31 struct regmap *regmap;
32};
33#define to_axxia_clk(_hw) container_of(_hw, struct axxia_clk, hw)
34
35/**
36 * struct axxia_pllclk - Axxia PLL generated clock.
37 * @aclk: Common struct
38 * @reg: Offset into regmap for PLL control register
39 */
40struct axxia_pllclk {
41 struct axxia_clk aclk;
42 u32 reg;
43};
44#define to_axxia_pllclk(_aclk) container_of(_aclk, struct axxia_pllclk, aclk)
45
46/**
47 * axxia_pllclk_recalc - Calculate the PLL generated clock rate given the
48 * parent clock rate.
49 */
50static unsigned long
51axxia_pllclk_recalc(struct clk_hw *hw, unsigned long parent_rate)
52{
53 struct axxia_clk *aclk = to_axxia_clk(hw);
54 struct axxia_pllclk *pll = to_axxia_pllclk(aclk);
55 unsigned long rate, fbdiv, refdiv, postdiv;
56 u32 control;
57
58 regmap_read(aclk->regmap, pll->reg, &control);
59 postdiv = ((control >> 0) & 0xf) + 1;
60 fbdiv = ((control >> 4) & 0xfff) + 3;
61 refdiv = ((control >> 16) & 0x1f) + 1;
62 rate = (parent_rate / (refdiv * postdiv)) * fbdiv;
63
64 return rate;
65}
66
67static const struct clk_ops axxia_pllclk_ops = {
68 .recalc_rate = axxia_pllclk_recalc,
69};
70
71/**
72 * struct axxia_divclk - Axxia clock divider
73 * @aclk: Common struct
74 * @reg: Offset into regmap for PLL control register
75 * @shift: Bit position for divider value
76 * @width: Number of bits in divider value
77 */
78struct axxia_divclk {
79 struct axxia_clk aclk;
80 u32 reg;
81 u32 shift;
82 u32 width;
83};
84#define to_axxia_divclk(_aclk) container_of(_aclk, struct axxia_divclk, aclk)
85
86/**
87 * axxia_divclk_recalc_rate - Calculate clock divider output rage
88 */
89static unsigned long
90axxia_divclk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
91{
92 struct axxia_clk *aclk = to_axxia_clk(hw);
93 struct axxia_divclk *divclk = to_axxia_divclk(aclk);
94 u32 ctrl, div;
95
96 regmap_read(aclk->regmap, divclk->reg, &ctrl);
97 div = 1 + ((ctrl >> divclk->shift) & ((1 << divclk->width)-1));
98
99 return parent_rate / div;
100}
101
102static const struct clk_ops axxia_divclk_ops = {
103 .recalc_rate = axxia_divclk_recalc_rate,
104};
105
106/**
107 * struct axxia_clkmux - Axxia clock mux
108 * @aclk: Common struct
109 * @reg: Offset into regmap for PLL control register
110 * @shift: Bit position for selection value
111 * @width: Number of bits in selection value
112 */
113struct axxia_clkmux {
114 struct axxia_clk aclk;
115 u32 reg;
116 u32 shift;
117 u32 width;
118};
119#define to_axxia_clkmux(_aclk) container_of(_aclk, struct axxia_clkmux, aclk)
120
121/**
122 * axxia_clkmux_get_parent - Return the index of selected parent clock
123 */
124static u8 axxia_clkmux_get_parent(struct clk_hw *hw)
125{
126 struct axxia_clk *aclk = to_axxia_clk(hw);
127 struct axxia_clkmux *mux = to_axxia_clkmux(aclk);
128 u32 ctrl, parent;
129
130 regmap_read(aclk->regmap, mux->reg, &ctrl);
131 parent = (ctrl >> mux->shift) & ((1 << mux->width) - 1);
132
133 return (u8) parent;
134}
135
136static const struct clk_ops axxia_clkmux_ops = {
137 .get_parent = axxia_clkmux_get_parent,
138};
139
140
141/*
142 * PLLs
143 */
144
145static struct axxia_pllclk clk_fab_pll = {
146 .aclk.hw.init = &(struct clk_init_data){
147 .name = "clk_fab_pll",
148 .parent_names = (const char *[]){
149 "clk_ref0"
150 },
151 .num_parents = 1,
152 .ops = &axxia_pllclk_ops,
153 },
154 .reg = 0x01800,
155};
156
157static struct axxia_pllclk clk_cpu_pll = {
158 .aclk.hw.init = &(struct clk_init_data){
159 .name = "clk_cpu_pll",
160 .parent_names = (const char *[]){
161 "clk_ref0"
162 },
163 .num_parents = 1,
164 .ops = &axxia_pllclk_ops,
165 },
166 .reg = 0x02000,
167};
168
169static struct axxia_pllclk clk_sys_pll = {
170 .aclk.hw.init = &(struct clk_init_data){
171 .name = "clk_sys_pll",
172 .parent_names = (const char *[]){
173 "clk_ref0"
174 },
175 .num_parents = 1,
176 .ops = &axxia_pllclk_ops,
177 },
178 .reg = 0x02800,
179};
180
181static struct axxia_pllclk clk_sm0_pll = {
182 .aclk.hw.init = &(struct clk_init_data){
183 .name = "clk_sm0_pll",
184 .parent_names = (const char *[]){
185 "clk_ref2"
186 },
187 .num_parents = 1,
188 .ops = &axxia_pllclk_ops,
189 },
190 .reg = 0x03000,
191};
192
193static struct axxia_pllclk clk_sm1_pll = {
194 .aclk.hw.init = &(struct clk_init_data){
195 .name = "clk_sm1_pll",
196 .parent_names = (const char *[]){
197 "clk_ref1"
198 },
199 .num_parents = 1,
200 .ops = &axxia_pllclk_ops,
201 },
202 .reg = 0x03800,
203};
204
205/*
206 * Clock dividers
207 */
208
209static struct axxia_divclk clk_cpu0_div = {
210 .aclk.hw.init = &(struct clk_init_data){
211 .name = "clk_cpu0_div",
212 .parent_names = (const char *[]){
213 "clk_cpu_pll"
214 },
215 .num_parents = 1,
216 .ops = &axxia_divclk_ops,
217 },
218 .reg = 0x10008,
219 .shift = 0,
220 .width = 4,
221};
222
223static struct axxia_divclk clk_cpu1_div = {
224 .aclk.hw.init = &(struct clk_init_data){
225 .name = "clk_cpu1_div",
226 .parent_names = (const char *[]){
227 "clk_cpu_pll"
228 },
229 .num_parents = 1,
230 .ops = &axxia_divclk_ops,
231 },
232 .reg = 0x10008,
233 .shift = 4,
234 .width = 4,
235};
236
237static struct axxia_divclk clk_cpu2_div = {
238 .aclk.hw.init = &(struct clk_init_data){
239 .name = "clk_cpu2_div",
240 .parent_names = (const char *[]){
241 "clk_cpu_pll"
242 },
243 .num_parents = 1,
244 .ops = &axxia_divclk_ops,
245 },
246 .reg = 0x10008,
247 .shift = 8,
248 .width = 4,
249};
250
251static struct axxia_divclk clk_cpu3_div = {
252 .aclk.hw.init = &(struct clk_init_data){
253 .name = "clk_cpu3_div",
254 .parent_names = (const char *[]){
255 "clk_cpu_pll"
256 },
257 .num_parents = 1,
258 .ops = &axxia_divclk_ops,
259 },
260 .reg = 0x10008,
261 .shift = 12,
262 .width = 4,
263};
264
265static struct axxia_divclk clk_nrcp_div = {
266 .aclk.hw.init = &(struct clk_init_data){
267 .name = "clk_nrcp_div",
268 .parent_names = (const char *[]){
269 "clk_sys_pll"
270 },
271 .num_parents = 1,
272 .ops = &axxia_divclk_ops,
273 },
274 .reg = 0x1000c,
275 .shift = 0,
276 .width = 4,
277};
278
279static struct axxia_divclk clk_sys_div = {
280 .aclk.hw.init = &(struct clk_init_data){
281 .name = "clk_sys_div",
282 .parent_names = (const char *[]){
283 "clk_sys_pll"
284 },
285 .num_parents = 1,
286 .ops = &axxia_divclk_ops,
287 },
288 .reg = 0x1000c,
289 .shift = 4,
290 .width = 4,
291};
292
293static struct axxia_divclk clk_fab_div = {
294 .aclk.hw.init = &(struct clk_init_data){
295 .name = "clk_fab_div",
296 .parent_names = (const char *[]){
297 "clk_fab_pll"
298 },
299 .num_parents = 1,
300 .ops = &axxia_divclk_ops,
301 },
302 .reg = 0x1000c,
303 .shift = 8,
304 .width = 4,
305};
306
307static struct axxia_divclk clk_per_div = {
308 .aclk.hw.init = &(struct clk_init_data){
309 .name = "clk_per_div",
310 .parent_names = (const char *[]){
311 "clk_sm1_pll"
312 },
313 .num_parents = 1,
314 .flags = CLK_IS_BASIC,
315 .ops = &axxia_divclk_ops,
316 },
317 .reg = 0x1000c,
318 .shift = 12,
319 .width = 4,
320};
321
322static struct axxia_divclk clk_mmc_div = {
323 .aclk.hw.init = &(struct clk_init_data){
324 .name = "clk_mmc_div",
325 .parent_names = (const char *[]){
326 "clk_sm1_pll"
327 },
328 .num_parents = 1,
329 .flags = CLK_IS_BASIC,
330 .ops = &axxia_divclk_ops,
331 },
332 .reg = 0x1000c,
333 .shift = 16,
334 .width = 4,
335};
336
337/*
338 * Clock MUXes
339 */
340
341static struct axxia_clkmux clk_cpu0_mux = {
342 .aclk.hw.init = &(struct clk_init_data){
343 .name = "clk_cpu0",
344 .parent_names = (const char *[]){
345 "clk_ref0",
346 "clk_cpu_pll",
347 "clk_cpu0_div",
348 "clk_cpu0_div"
349 },
350 .num_parents = 4,
351 .ops = &axxia_clkmux_ops,
352 },
353 .reg = 0x10000,
354 .shift = 0,
355 .width = 2,
356};
357
358static struct axxia_clkmux clk_cpu1_mux = {
359 .aclk.hw.init = &(struct clk_init_data){
360 .name = "clk_cpu1",
361 .parent_names = (const char *[]){
362 "clk_ref0",
363 "clk_cpu_pll",
364 "clk_cpu1_div",
365 "clk_cpu1_div"
366 },
367 .num_parents = 4,
368 .ops = &axxia_clkmux_ops,
369 },
370 .reg = 0x10000,
371 .shift = 2,
372 .width = 2,
373};
374
375static struct axxia_clkmux clk_cpu2_mux = {
376 .aclk.hw.init = &(struct clk_init_data){
377 .name = "clk_cpu2",
378 .parent_names = (const char *[]){
379 "clk_ref0",
380 "clk_cpu_pll",
381 "clk_cpu2_div",
382 "clk_cpu2_div"
383 },
384 .num_parents = 4,
385 .ops = &axxia_clkmux_ops,
386 },
387 .reg = 0x10000,
388 .shift = 4,
389 .width = 2,
390};
391
392static struct axxia_clkmux clk_cpu3_mux = {
393 .aclk.hw.init = &(struct clk_init_data){
394 .name = "clk_cpu3",
395 .parent_names = (const char *[]){
396 "clk_ref0",
397 "clk_cpu_pll",
398 "clk_cpu3_div",
399 "clk_cpu3_div"
400 },
401 .num_parents = 4,
402 .ops = &axxia_clkmux_ops,
403 },
404 .reg = 0x10000,
405 .shift = 6,
406 .width = 2,
407};
408
409static struct axxia_clkmux clk_nrcp_mux = {
410 .aclk.hw.init = &(struct clk_init_data){
411 .name = "clk_nrcp",
412 .parent_names = (const char *[]){
413 "clk_ref0",
414 "clk_sys_pll",
415 "clk_nrcp_div",
416 "clk_nrcp_div"
417 },
418 .num_parents = 4,
419 .ops = &axxia_clkmux_ops,
420 },
421 .reg = 0x10004,
422 .shift = 0,
423 .width = 2,
424};
425
426static struct axxia_clkmux clk_sys_mux = {
427 .aclk.hw.init = &(struct clk_init_data){
428 .name = "clk_sys",
429 .parent_names = (const char *[]){
430 "clk_ref0",
431 "clk_sys_pll",
432 "clk_sys_div",
433 "clk_sys_div"
434 },
435 .num_parents = 4,
436 .ops = &axxia_clkmux_ops,
437 },
438 .reg = 0x10004,
439 .shift = 2,
440 .width = 2,
441};
442
443static struct axxia_clkmux clk_fab_mux = {
444 .aclk.hw.init = &(struct clk_init_data){
445 .name = "clk_fab",
446 .parent_names = (const char *[]){
447 "clk_ref0",
448 "clk_fab_pll",
449 "clk_fab_div",
450 "clk_fab_div"
451 },
452 .num_parents = 4,
453 .ops = &axxia_clkmux_ops,
454 },
455 .reg = 0x10004,
456 .shift = 4,
457 .width = 2,
458};
459
460static struct axxia_clkmux clk_per_mux = {
461 .aclk.hw.init = &(struct clk_init_data){
462 .name = "clk_per",
463 .parent_names = (const char *[]){
464 "clk_ref1",
465 "clk_per_div"
466 },
467 .num_parents = 2,
468 .ops = &axxia_clkmux_ops,
469 },
470 .reg = 0x10004,
471 .shift = 6,
472 .width = 1,
473};
474
475static struct axxia_clkmux clk_mmc_mux = {
476 .aclk.hw.init = &(struct clk_init_data){
477 .name = "clk_mmc",
478 .parent_names = (const char *[]){
479 "clk_ref1",
480 "clk_mmc_div"
481 },
482 .num_parents = 2,
483 .ops = &axxia_clkmux_ops,
484 },
485 .reg = 0x10004,
486 .shift = 9,
487 .width = 1,
488};
489
490/* Table of all supported clocks indexed by the clock identifiers from the
491 * device tree binding
492 */
493static struct axxia_clk *axmclk_clocks[] = {
494 [AXXIA_CLK_FAB_PLL] = &clk_fab_pll.aclk,
495 [AXXIA_CLK_CPU_PLL] = &clk_cpu_pll.aclk,
496 [AXXIA_CLK_SYS_PLL] = &clk_sys_pll.aclk,
497 [AXXIA_CLK_SM0_PLL] = &clk_sm0_pll.aclk,
498 [AXXIA_CLK_SM1_PLL] = &clk_sm1_pll.aclk,
499 [AXXIA_CLK_FAB_DIV] = &clk_fab_div.aclk,
500 [AXXIA_CLK_SYS_DIV] = &clk_sys_div.aclk,
501 [AXXIA_CLK_NRCP_DIV] = &clk_nrcp_div.aclk,
502 [AXXIA_CLK_CPU0_DIV] = &clk_cpu0_div.aclk,
503 [AXXIA_CLK_CPU1_DIV] = &clk_cpu1_div.aclk,
504 [AXXIA_CLK_CPU2_DIV] = &clk_cpu2_div.aclk,
505 [AXXIA_CLK_CPU3_DIV] = &clk_cpu3_div.aclk,
506 [AXXIA_CLK_PER_DIV] = &clk_per_div.aclk,
507 [AXXIA_CLK_MMC_DIV] = &clk_mmc_div.aclk,
508 [AXXIA_CLK_FAB] = &clk_fab_mux.aclk,
509 [AXXIA_CLK_SYS] = &clk_sys_mux.aclk,
510 [AXXIA_CLK_NRCP] = &clk_nrcp_mux.aclk,
511 [AXXIA_CLK_CPU0] = &clk_cpu0_mux.aclk,
512 [AXXIA_CLK_CPU1] = &clk_cpu1_mux.aclk,
513 [AXXIA_CLK_CPU2] = &clk_cpu2_mux.aclk,
514 [AXXIA_CLK_CPU3] = &clk_cpu3_mux.aclk,
515 [AXXIA_CLK_PER] = &clk_per_mux.aclk,
516 [AXXIA_CLK_MMC] = &clk_mmc_mux.aclk,
517};
518
519static const struct regmap_config axmclk_regmap_config = {
520 .reg_bits = 32,
521 .reg_stride = 4,
522 .val_bits = 32,
523 .max_register = 0x1fffc,
524 .fast_io = true,
525};
526
527static const struct of_device_id axmclk_match_table[] = {
528 { .compatible = "lsi,axm5516-clks" },
529 { }
530};
531MODULE_DEVICE_TABLE(of, axmclk_match_table);
532
533struct axmclk_priv {
534 struct clk_onecell_data onecell;
535 struct clk *clks[];
536};
537
538static int axmclk_probe(struct platform_device *pdev)
539{
540 void __iomem *base;
541 struct resource *res;
542 int i, ret;
543 struct device *dev = &pdev->dev;
544 struct clk *clk;
545 struct regmap *regmap;
546 size_t num_clks;
547 struct axmclk_priv *priv;
548
549 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
550 base = devm_ioremap_resource(dev, res);
551 if (IS_ERR(base))
552 return PTR_ERR(base);
553
554 regmap = devm_regmap_init_mmio(dev, base, &axmclk_regmap_config);
555 if (IS_ERR(regmap))
556 return PTR_ERR(regmap);
557
558 num_clks = ARRAY_SIZE(axmclk_clocks);
559 pr_info("axmclk: supporting %u clocks\n", num_clks);
560 priv = devm_kzalloc(dev, sizeof(*priv) + sizeof(*priv->clks) * num_clks,
561 GFP_KERNEL);
562 if (!priv)
563 return -ENOMEM;
564
565 priv->onecell.clks = priv->clks;
566 priv->onecell.clk_num = num_clks;
567
568 /* Update each entry with the allocated regmap and register the clock
569 * with the common clock framework
570 */
571 for (i = 0; i < num_clks; i++) {
572 axmclk_clocks[i]->regmap = regmap;
573 clk = devm_clk_register(dev, &axmclk_clocks[i]->hw);
574 if (IS_ERR(clk))
575 return PTR_ERR(clk);
576 priv->clks[i] = clk;
577 }
578
579 ret = of_clk_add_provider(dev->of_node,
580 of_clk_src_onecell_get, &priv->onecell);
581
582 return ret;
583}
584
585static int axmclk_remove(struct platform_device *pdev)
586{
587 of_clk_del_provider(pdev->dev.of_node);
588 return 0;
589}
590
591static struct platform_driver axmclk_driver = {
592 .probe = axmclk_probe,
593 .remove = axmclk_remove,
594 .driver = {
595 .name = "clk-axm5516",
596 .owner = THIS_MODULE,
597 .of_match_table = axmclk_match_table,
598 },
599};
600
601static int __init axmclk_init(void)
602{
603 return platform_driver_register(&axmclk_driver);
604}
605core_initcall(axmclk_init);
606
607static void __exit axmclk_exit(void)
608{
609 platform_driver_unregister(&axmclk_driver);
610}
611module_exit(axmclk_exit);
612
613MODULE_DESCRIPTION("AXM5516 clock driver");
614MODULE_LICENSE("GPL v2");
615MODULE_ALIAS("platform:clk-axm5516");
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index 3fbee4540228..18a9de29df0e 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -43,6 +43,17 @@ static unsigned int _get_table_maxdiv(const struct clk_div_table *table)
43 return maxdiv; 43 return maxdiv;
44} 44}
45 45
46static unsigned int _get_table_mindiv(const struct clk_div_table *table)
47{
48 unsigned int mindiv = UINT_MAX;
49 const struct clk_div_table *clkt;
50
51 for (clkt = table; clkt->div; clkt++)
52 if (clkt->div < mindiv)
53 mindiv = clkt->div;
54 return mindiv;
55}
56
46static unsigned int _get_maxdiv(struct clk_divider *divider) 57static unsigned int _get_maxdiv(struct clk_divider *divider)
47{ 58{
48 if (divider->flags & CLK_DIVIDER_ONE_BASED) 59 if (divider->flags & CLK_DIVIDER_ONE_BASED)
@@ -162,6 +173,24 @@ static int _round_up_table(const struct clk_div_table *table, int div)
162 return up; 173 return up;
163} 174}
164 175
176static int _round_down_table(const struct clk_div_table *table, int div)
177{
178 const struct clk_div_table *clkt;
179 int down = _get_table_mindiv(table);
180
181 for (clkt = table; clkt->div; clkt++) {
182 if (clkt->div == div)
183 return clkt->div;
184 else if (clkt->div > div)
185 continue;
186
187 if ((div - clkt->div) < (div - down))
188 down = clkt->div;
189 }
190
191 return down;
192}
193
165static int _div_round_up(struct clk_divider *divider, 194static int _div_round_up(struct clk_divider *divider,
166 unsigned long parent_rate, unsigned long rate) 195 unsigned long parent_rate, unsigned long rate)
167{ 196{
@@ -175,6 +204,54 @@ static int _div_round_up(struct clk_divider *divider,
175 return div; 204 return div;
176} 205}
177 206
207static int _div_round_closest(struct clk_divider *divider,
208 unsigned long parent_rate, unsigned long rate)
209{
210 int up, down, div;
211
212 up = down = div = DIV_ROUND_CLOSEST(parent_rate, rate);
213
214 if (divider->flags & CLK_DIVIDER_POWER_OF_TWO) {
215 up = __roundup_pow_of_two(div);
216 down = __rounddown_pow_of_two(div);
217 } else if (divider->table) {
218 up = _round_up_table(divider->table, div);
219 down = _round_down_table(divider->table, div);
220 }
221
222 return (up - div) <= (div - down) ? up : down;
223}
224
225static int _div_round(struct clk_divider *divider, unsigned long parent_rate,
226 unsigned long rate)
227{
228 if (divider->flags & CLK_DIVIDER_ROUND_CLOSEST)
229 return _div_round_closest(divider, parent_rate, rate);
230
231 return _div_round_up(divider, parent_rate, rate);
232}
233
234static bool _is_best_div(struct clk_divider *divider,
235 unsigned long rate, unsigned long now, unsigned long best)
236{
237 if (divider->flags & CLK_DIVIDER_ROUND_CLOSEST)
238 return abs(rate - now) < abs(rate - best);
239
240 return now <= rate && now > best;
241}
242
243static int _next_div(struct clk_divider *divider, int div)
244{
245 div++;
246
247 if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)
248 return __roundup_pow_of_two(div);
249 if (divider->table)
250 return _round_up_table(divider->table, div);
251
252 return div;
253}
254
178static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, 255static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
179 unsigned long *best_parent_rate) 256 unsigned long *best_parent_rate)
180{ 257{
@@ -190,7 +267,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
190 267
191 if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) { 268 if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) {
192 parent_rate = *best_parent_rate; 269 parent_rate = *best_parent_rate;
193 bestdiv = _div_round_up(divider, parent_rate, rate); 270 bestdiv = _div_round(divider, parent_rate, rate);
194 bestdiv = bestdiv == 0 ? 1 : bestdiv; 271 bestdiv = bestdiv == 0 ? 1 : bestdiv;
195 bestdiv = bestdiv > maxdiv ? maxdiv : bestdiv; 272 bestdiv = bestdiv > maxdiv ? maxdiv : bestdiv;
196 return bestdiv; 273 return bestdiv;
@@ -202,7 +279,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
202 */ 279 */
203 maxdiv = min(ULONG_MAX / rate, maxdiv); 280 maxdiv = min(ULONG_MAX / rate, maxdiv);
204 281
205 for (i = 1; i <= maxdiv; i++) { 282 for (i = 1; i <= maxdiv; i = _next_div(divider, i)) {
206 if (!_is_valid_div(divider, i)) 283 if (!_is_valid_div(divider, i))
207 continue; 284 continue;
208 if (rate * i == parent_rate_saved) { 285 if (rate * i == parent_rate_saved) {
@@ -217,7 +294,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
217 parent_rate = __clk_round_rate(__clk_get_parent(hw->clk), 294 parent_rate = __clk_round_rate(__clk_get_parent(hw->clk),
218 MULT_ROUND_UP(rate, i)); 295 MULT_ROUND_UP(rate, i));
219 now = DIV_ROUND_UP(parent_rate, i); 296 now = DIV_ROUND_UP(parent_rate, i);
220 if (now <= rate && now > best) { 297 if (_is_best_div(divider, rate, now, best)) {
221 bestdiv = i; 298 bestdiv = i;
222 best = now; 299 best = now;
223 *best_parent_rate = parent_rate; 300 *best_parent_rate = parent_rate;
@@ -284,6 +361,11 @@ const struct clk_ops clk_divider_ops = {
284}; 361};
285EXPORT_SYMBOL_GPL(clk_divider_ops); 362EXPORT_SYMBOL_GPL(clk_divider_ops);
286 363
364const struct clk_ops clk_divider_ro_ops = {
365 .recalc_rate = clk_divider_recalc_rate,
366};
367EXPORT_SYMBOL_GPL(clk_divider_ro_ops);
368
287static struct clk *_register_divider(struct device *dev, const char *name, 369static struct clk *_register_divider(struct device *dev, const char *name,
288 const char *parent_name, unsigned long flags, 370 const char *parent_name, unsigned long flags,
289 void __iomem *reg, u8 shift, u8 width, 371 void __iomem *reg, u8 shift, u8 width,
@@ -309,7 +391,10 @@ static struct clk *_register_divider(struct device *dev, const char *name,
309 } 391 }
310 392
311 init.name = name; 393 init.name = name;
312 init.ops = &clk_divider_ops; 394 if (clk_divider_flags & CLK_DIVIDER_READ_ONLY)
395 init.ops = &clk_divider_ro_ops;
396 else
397 init.ops = &clk_divider_ops;
313 init.flags = flags | CLK_IS_BASIC; 398 init.flags = flags | CLK_IS_BASIC;
314 init.parent_names = (parent_name ? &parent_name: NULL); 399 init.parent_names = (parent_name ? &parent_name: NULL);
315 init.num_parents = (parent_name ? 1 : 0); 400 init.num_parents = (parent_name ? 1 : 0);
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index f2f62a1bf61a..9b7b5859a420 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * clk-s2mps11.c - Clock driver for S2MPS11. 2 * clk-s2mps11.c - Clock driver for S2MPS11.
3 * 3 *
4 * Copyright (C) 2013 Samsung Electornics 4 * Copyright (C) 2013,2014 Samsung Electornics
5 * 5 *
6 * This program is free software; you can redistribute it and/or modify it 6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the 7 * under the terms of the GNU General Public License as published by the
@@ -13,10 +13,6 @@
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details. 14 * GNU General Public License for more details.
15 * 15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */ 16 */
21 17
22#include <linux/module.h> 18#include <linux/module.h>
@@ -27,6 +23,7 @@
27#include <linux/clk-provider.h> 23#include <linux/clk-provider.h>
28#include <linux/platform_device.h> 24#include <linux/platform_device.h>
29#include <linux/mfd/samsung/s2mps11.h> 25#include <linux/mfd/samsung/s2mps11.h>
26#include <linux/mfd/samsung/s2mps14.h>
30#include <linux/mfd/samsung/s5m8767.h> 27#include <linux/mfd/samsung/s5m8767.h>
31#include <linux/mfd/samsung/core.h> 28#include <linux/mfd/samsung/core.h>
32 29
@@ -44,6 +41,7 @@ enum {
44 41
45struct s2mps11_clk { 42struct s2mps11_clk {
46 struct sec_pmic_dev *iodev; 43 struct sec_pmic_dev *iodev;
44 struct device_node *clk_np;
47 struct clk_hw hw; 45 struct clk_hw hw;
48 struct clk *clk; 46 struct clk *clk;
49 struct clk_lookup *lookup; 47 struct clk_lookup *lookup;
@@ -125,7 +123,21 @@ static struct clk_init_data s2mps11_clks_init[S2MPS11_CLKS_NUM] = {
125 }, 123 },
126}; 124};
127 125
128static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev) 126static struct clk_init_data s2mps14_clks_init[S2MPS11_CLKS_NUM] = {
127 [S2MPS11_CLK_AP] = {
128 .name = "s2mps14_ap",
129 .ops = &s2mps11_clk_ops,
130 .flags = CLK_IS_ROOT,
131 },
132 [S2MPS11_CLK_BT] = {
133 .name = "s2mps14_bt",
134 .ops = &s2mps11_clk_ops,
135 .flags = CLK_IS_ROOT,
136 },
137};
138
139static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev,
140 struct clk_init_data *clks_init)
129{ 141{
130 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 142 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
131 struct device_node *clk_np; 143 struct device_node *clk_np;
@@ -140,14 +152,12 @@ static struct device_node *s2mps11_clk_parse_dt(struct platform_device *pdev)
140 return ERR_PTR(-EINVAL); 152 return ERR_PTR(-EINVAL);
141 } 153 }
142 154
143 clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) * 155 for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
144 S2MPS11_CLKS_NUM, GFP_KERNEL); 156 if (!clks_init[i].name)
145 if (!clk_table) 157 continue; /* Skip clocks not present in some devices */
146 return ERR_PTR(-ENOMEM);
147
148 for (i = 0; i < S2MPS11_CLKS_NUM; i++)
149 of_property_read_string_index(clk_np, "clock-output-names", i, 158 of_property_read_string_index(clk_np, "clock-output-names", i,
150 &s2mps11_clks_init[i].name); 159 &clks_init[i].name);
160 }
151 161
152 return clk_np; 162 return clk_np;
153} 163}
@@ -156,8 +166,8 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
156{ 166{
157 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); 167 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
158 struct s2mps11_clk *s2mps11_clks, *s2mps11_clk; 168 struct s2mps11_clk *s2mps11_clks, *s2mps11_clk;
159 struct device_node *clk_np = NULL;
160 unsigned int s2mps11_reg; 169 unsigned int s2mps11_reg;
170 struct clk_init_data *clks_init;
161 int i, ret = 0; 171 int i, ret = 0;
162 u32 val; 172 u32 val;
163 173
@@ -168,25 +178,39 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
168 178
169 s2mps11_clk = s2mps11_clks; 179 s2mps11_clk = s2mps11_clks;
170 180
171 clk_np = s2mps11_clk_parse_dt(pdev); 181 clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) *
172 if (IS_ERR(clk_np)) 182 S2MPS11_CLKS_NUM, GFP_KERNEL);
173 return PTR_ERR(clk_np); 183 if (!clk_table)
184 return -ENOMEM;
174 185
175 switch(platform_get_device_id(pdev)->driver_data) { 186 switch(platform_get_device_id(pdev)->driver_data) {
176 case S2MPS11X: 187 case S2MPS11X:
177 s2mps11_reg = S2MPS11_REG_RTC_CTRL; 188 s2mps11_reg = S2MPS11_REG_RTC_CTRL;
189 clks_init = s2mps11_clks_init;
190 break;
191 case S2MPS14X:
192 s2mps11_reg = S2MPS14_REG_RTCCTRL;
193 clks_init = s2mps14_clks_init;
178 break; 194 break;
179 case S5M8767X: 195 case S5M8767X:
180 s2mps11_reg = S5M8767_REG_CTRL1; 196 s2mps11_reg = S5M8767_REG_CTRL1;
197 clks_init = s2mps11_clks_init;
181 break; 198 break;
182 default: 199 default:
183 dev_err(&pdev->dev, "Invalid device type\n"); 200 dev_err(&pdev->dev, "Invalid device type\n");
184 return -EINVAL; 201 return -EINVAL;
185 }; 202 };
186 203
204 /* Store clocks of_node in first element of s2mps11_clks array */
205 s2mps11_clks->clk_np = s2mps11_clk_parse_dt(pdev, clks_init);
206 if (IS_ERR(s2mps11_clks->clk_np))
207 return PTR_ERR(s2mps11_clks->clk_np);
208
187 for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) { 209 for (i = 0; i < S2MPS11_CLKS_NUM; i++, s2mps11_clk++) {
210 if (!clks_init[i].name)
211 continue; /* Skip clocks not present in some devices */
188 s2mps11_clk->iodev = iodev; 212 s2mps11_clk->iodev = iodev;
189 s2mps11_clk->hw.init = &s2mps11_clks_init[i]; 213 s2mps11_clk->hw.init = &clks_init[i];
190 s2mps11_clk->mask = 1 << i; 214 s2mps11_clk->mask = 1 << i;
191 s2mps11_clk->reg = s2mps11_reg; 215 s2mps11_clk->reg = s2mps11_reg;
192 216
@@ -219,15 +243,18 @@ static int s2mps11_clk_probe(struct platform_device *pdev)
219 clkdev_add(s2mps11_clk->lookup); 243 clkdev_add(s2mps11_clk->lookup);
220 } 244 }
221 245
222 if (clk_table) { 246 for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
223 for (i = 0; i < S2MPS11_CLKS_NUM; i++) 247 /* Skip clocks not present on S2MPS14 */
224 clk_table[i] = s2mps11_clks[i].clk; 248 if (!clks_init[i].name)
225 249 continue;
226 clk_data.clks = clk_table; 250 clk_table[i] = s2mps11_clks[i].clk;
227 clk_data.clk_num = S2MPS11_CLKS_NUM;
228 of_clk_add_provider(clk_np, of_clk_src_onecell_get, &clk_data);
229 } 251 }
230 252
253 clk_data.clks = clk_table;
254 clk_data.clk_num = S2MPS11_CLKS_NUM;
255 of_clk_add_provider(s2mps11_clks->clk_np, of_clk_src_onecell_get,
256 &clk_data);
257
231 platform_set_drvdata(pdev, s2mps11_clks); 258 platform_set_drvdata(pdev, s2mps11_clks);
232 259
233 return ret; 260 return ret;
@@ -250,14 +277,23 @@ static int s2mps11_clk_remove(struct platform_device *pdev)
250 struct s2mps11_clk *s2mps11_clks = platform_get_drvdata(pdev); 277 struct s2mps11_clk *s2mps11_clks = platform_get_drvdata(pdev);
251 int i; 278 int i;
252 279
253 for (i = 0; i < S2MPS11_CLKS_NUM; i++) 280 of_clk_del_provider(s2mps11_clks[0].clk_np);
281 /* Drop the reference obtained in s2mps11_clk_parse_dt */
282 of_node_put(s2mps11_clks[0].clk_np);
283
284 for (i = 0; i < S2MPS11_CLKS_NUM; i++) {
285 /* Skip clocks not present on S2MPS14 */
286 if (!s2mps11_clks[i].lookup)
287 continue;
254 clkdev_drop(s2mps11_clks[i].lookup); 288 clkdev_drop(s2mps11_clks[i].lookup);
289 }
255 290
256 return 0; 291 return 0;
257} 292}
258 293
259static const struct platform_device_id s2mps11_clk_id[] = { 294static const struct platform_device_id s2mps11_clk_id[] = {
260 { "s2mps11-clk", S2MPS11X}, 295 { "s2mps11-clk", S2MPS11X},
296 { "s2mps14-clk", S2MPS14X},
261 { "s5m8767-clk", S5M8767X}, 297 { "s5m8767-clk", S5M8767X},
262 { }, 298 { },
263}; 299};
diff --git a/drivers/clk/clk-si570.c b/drivers/clk/clk-si570.c
index 4bbbe32585ec..fc167b3f8919 100644
--- a/drivers/clk/clk-si570.c
+++ b/drivers/clk/clk-si570.c
@@ -526,6 +526,6 @@ static struct i2c_driver si570_driver = {
526module_i2c_driver(si570_driver); 526module_i2c_driver(si570_driver);
527 527
528MODULE_AUTHOR("Guenter Roeck <guenter.roeck@ericsson.com>"); 528MODULE_AUTHOR("Guenter Roeck <guenter.roeck@ericsson.com>");
529MODULE_AUTHOR("Soeren Brinkmann <soren.brinkmann@xilinx.com"); 529MODULE_AUTHOR("Soeren Brinkmann <soren.brinkmann@xilinx.com>");
530MODULE_DESCRIPTION("Si570 driver"); 530MODULE_DESCRIPTION("Si570 driver");
531MODULE_LICENSE("GPL"); 531MODULE_LICENSE("GPL");
diff --git a/drivers/clk/clk-u300.c b/drivers/clk/clk-u300.c
index 3efbdd078d14..406bfc1375b2 100644
--- a/drivers/clk/clk-u300.c
+++ b/drivers/clk/clk-u300.c
@@ -1168,6 +1168,7 @@ static const struct of_device_id u300_clk_match[] __initconst = {
1168 .compatible = "stericsson,u300-syscon-mclk", 1168 .compatible = "stericsson,u300-syscon-mclk",
1169 .data = of_u300_syscon_mclk_init, 1169 .data = of_u300_syscon_mclk_init,
1170 }, 1170 },
1171 {}
1171}; 1172};
1172 1173
1173 1174
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 7cf2c093cc54..8b73edef151d 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -106,12 +106,11 @@ static void clk_summary_show_one(struct seq_file *s, struct clk *c, int level)
106 if (!c) 106 if (!c)
107 return; 107 return;
108 108
109 seq_printf(s, "%*s%-*s %-11d %-12d %-10lu %-11lu", 109 seq_printf(s, "%*s%-*s %11d %12d %11lu %10lu\n",
110 level * 3 + 1, "", 110 level * 3 + 1, "",
111 30 - level * 3, c->name, 111 30 - level * 3, c->name,
112 c->enable_count, c->prepare_count, clk_get_rate(c), 112 c->enable_count, c->prepare_count, clk_get_rate(c),
113 clk_get_accuracy(c)); 113 clk_get_accuracy(c));
114 seq_printf(s, "\n");
115} 114}
116 115
117static void clk_summary_show_subtree(struct seq_file *s, struct clk *c, 116static void clk_summary_show_subtree(struct seq_file *s, struct clk *c,
@@ -132,8 +131,8 @@ static int clk_summary_show(struct seq_file *s, void *data)
132{ 131{
133 struct clk *c; 132 struct clk *c;
134 133
135 seq_printf(s, " clock enable_cnt prepare_cnt rate accuracy\n"); 134 seq_puts(s, " clock enable_cnt prepare_cnt rate accuracy\n");
136 seq_printf(s, "---------------------------------------------------------------------------------\n"); 135 seq_puts(s, "--------------------------------------------------------------------------------\n");
137 136
138 clk_prepare_lock(); 137 clk_prepare_lock();
139 138
@@ -822,6 +821,9 @@ void __clk_unprepare(struct clk *clk)
822 */ 821 */
823void clk_unprepare(struct clk *clk) 822void clk_unprepare(struct clk *clk)
824{ 823{
824 if (IS_ERR_OR_NULL(clk))
825 return;
826
825 clk_prepare_lock(); 827 clk_prepare_lock();
826 __clk_unprepare(clk); 828 __clk_unprepare(clk);
827 clk_prepare_unlock(); 829 clk_prepare_unlock();
@@ -883,9 +885,6 @@ static void __clk_disable(struct clk *clk)
883 if (!clk) 885 if (!clk)
884 return; 886 return;
885 887
886 if (WARN_ON(IS_ERR(clk)))
887 return;
888
889 if (WARN_ON(clk->enable_count == 0)) 888 if (WARN_ON(clk->enable_count == 0))
890 return; 889 return;
891 890
@@ -914,6 +913,9 @@ void clk_disable(struct clk *clk)
914{ 913{
915 unsigned long flags; 914 unsigned long flags;
916 915
916 if (IS_ERR_OR_NULL(clk))
917 return;
918
917 flags = clk_enable_lock(); 919 flags = clk_enable_lock();
918 __clk_disable(clk); 920 __clk_disable(clk);
919 clk_enable_unlock(flags); 921 clk_enable_unlock(flags);
@@ -1004,6 +1006,7 @@ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate)
1004 else 1006 else
1005 return clk->rate; 1007 return clk->rate;
1006} 1008}
1009EXPORT_SYMBOL_GPL(__clk_round_rate);
1007 1010
1008/** 1011/**
1009 * clk_round_rate - round the given rate for a clk 1012 * clk_round_rate - round the given rate for a clk
@@ -1115,6 +1118,13 @@ long clk_get_accuracy(struct clk *clk)
1115} 1118}
1116EXPORT_SYMBOL_GPL(clk_get_accuracy); 1119EXPORT_SYMBOL_GPL(clk_get_accuracy);
1117 1120
1121static unsigned long clk_recalc(struct clk *clk, unsigned long parent_rate)
1122{
1123 if (clk->ops->recalc_rate)
1124 return clk->ops->recalc_rate(clk->hw, parent_rate);
1125 return parent_rate;
1126}
1127
1118/** 1128/**
1119 * __clk_recalc_rates 1129 * __clk_recalc_rates
1120 * @clk: first clk in the subtree 1130 * @clk: first clk in the subtree
@@ -1140,10 +1150,7 @@ static void __clk_recalc_rates(struct clk *clk, unsigned long msg)
1140 if (clk->parent) 1150 if (clk->parent)
1141 parent_rate = clk->parent->rate; 1151 parent_rate = clk->parent->rate;
1142 1152
1143 if (clk->ops->recalc_rate) 1153 clk->rate = clk_recalc(clk, parent_rate);
1144 clk->rate = clk->ops->recalc_rate(clk->hw, parent_rate);
1145 else
1146 clk->rate = parent_rate;
1147 1154
1148 /* 1155 /*
1149 * ignore NOTIFY_STOP and NOTIFY_BAD return values for POST_RATE_CHANGE 1156 * ignore NOTIFY_STOP and NOTIFY_BAD return values for POST_RATE_CHANGE
@@ -1334,10 +1341,7 @@ static int __clk_speculate_rates(struct clk *clk, unsigned long parent_rate)
1334 unsigned long new_rate; 1341 unsigned long new_rate;
1335 int ret = NOTIFY_DONE; 1342 int ret = NOTIFY_DONE;
1336 1343
1337 if (clk->ops->recalc_rate) 1344 new_rate = clk_recalc(clk, parent_rate);
1338 new_rate = clk->ops->recalc_rate(clk->hw, parent_rate);
1339 else
1340 new_rate = parent_rate;
1341 1345
1342 /* abort rate change if a driver returns NOTIFY_BAD or NOTIFY_STOP */ 1346 /* abort rate change if a driver returns NOTIFY_BAD or NOTIFY_STOP */
1343 if (clk->notifier_count) 1347 if (clk->notifier_count)
@@ -1373,10 +1377,7 @@ static void clk_calc_subtree(struct clk *clk, unsigned long new_rate,
1373 new_parent->new_child = clk; 1377 new_parent->new_child = clk;
1374 1378
1375 hlist_for_each_entry(child, &clk->children, child_node) { 1379 hlist_for_each_entry(child, &clk->children, child_node) {
1376 if (child->ops->recalc_rate) 1380 child->new_rate = clk_recalc(child, new_rate);
1377 child->new_rate = child->ops->recalc_rate(child->hw, new_rate);
1378 else
1379 child->new_rate = new_rate;
1380 clk_calc_subtree(child, child->new_rate, NULL, 0); 1381 clk_calc_subtree(child, child->new_rate, NULL, 0);
1381 } 1382 }
1382} 1383}
@@ -1524,10 +1525,7 @@ static void clk_change_rate(struct clk *clk)
1524 if (!skip_set_rate && clk->ops->set_rate) 1525 if (!skip_set_rate && clk->ops->set_rate)
1525 clk->ops->set_rate(clk->hw, clk->new_rate, best_parent_rate); 1526 clk->ops->set_rate(clk->hw, clk->new_rate, best_parent_rate);
1526 1527
1527 if (clk->ops->recalc_rate) 1528 clk->rate = clk_recalc(clk, best_parent_rate);
1528 clk->rate = clk->ops->recalc_rate(clk->hw, best_parent_rate);
1529 else
1530 clk->rate = best_parent_rate;
1531 1529
1532 if (clk->notifier_count && old_rate != clk->rate) 1530 if (clk->notifier_count && old_rate != clk->rate)
1533 __clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate); 1531 __clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate);
@@ -1716,9 +1714,6 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
1716 if (!clk) 1714 if (!clk)
1717 return 0; 1715 return 0;
1718 1716
1719 if (!clk->ops)
1720 return -EINVAL;
1721
1722 /* verify ops for for multi-parent clks */ 1717 /* verify ops for for multi-parent clks */
1723 if ((clk->num_parents > 1) && (!clk->ops->set_parent)) 1718 if ((clk->num_parents > 1) && (!clk->ops->set_parent))
1724 return -ENOSYS; 1719 return -ENOSYS;
diff --git a/drivers/clk/clk.h b/drivers/clk/clk.h
index 795cc9f0dac0..c798138f023f 100644
--- a/drivers/clk/clk.h
+++ b/drivers/clk/clk.h
@@ -10,6 +10,7 @@
10 */ 10 */
11 11
12#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) 12#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
13struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec);
13struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec); 14struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec);
14void of_clk_lock(void); 15void of_clk_lock(void);
15void of_clk_unlock(void); 16void of_clk_unlock(void);
diff --git a/drivers/clk/clkdev.c b/drivers/clk/clkdev.c
index a360b2eca5cb..f890b901c6bc 100644
--- a/drivers/clk/clkdev.c
+++ b/drivers/clk/clkdev.c
@@ -27,6 +27,32 @@ static LIST_HEAD(clocks);
27static DEFINE_MUTEX(clocks_mutex); 27static DEFINE_MUTEX(clocks_mutex);
28 28
29#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) 29#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
30
31/**
32 * of_clk_get_by_clkspec() - Lookup a clock form a clock provider
33 * @clkspec: pointer to a clock specifier data structure
34 *
35 * This function looks up a struct clk from the registered list of clock
36 * providers, an input is a clock specifier data structure as returned
37 * from the of_parse_phandle_with_args() function call.
38 */
39struct clk *of_clk_get_by_clkspec(struct of_phandle_args *clkspec)
40{
41 struct clk *clk;
42
43 if (!clkspec)
44 return ERR_PTR(-EINVAL);
45
46 of_clk_lock();
47 clk = __of_clk_get_from_provider(clkspec);
48
49 if (!IS_ERR(clk) && !__clk_get(clk))
50 clk = ERR_PTR(-ENOENT);
51
52 of_clk_unlock();
53 return clk;
54}
55
30struct clk *of_clk_get(struct device_node *np, int index) 56struct clk *of_clk_get(struct device_node *np, int index)
31{ 57{
32 struct of_phandle_args clkspec; 58 struct of_phandle_args clkspec;
@@ -41,13 +67,7 @@ struct clk *of_clk_get(struct device_node *np, int index)
41 if (rc) 67 if (rc)
42 return ERR_PTR(rc); 68 return ERR_PTR(rc);
43 69
44 of_clk_lock(); 70 clk = of_clk_get_by_clkspec(&clkspec);
45 clk = __of_clk_get_from_provider(&clkspec);
46
47 if (!IS_ERR(clk) && !__clk_get(clk))
48 clk = ERR_PTR(-ENOENT);
49
50 of_clk_unlock();
51 of_node_put(clkspec.np); 71 of_node_put(clkspec.np);
52 return clk; 72 return clk;
53} 73}
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index 40b33c6a8257..038c02f4d0e7 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -6,3 +6,4 @@ obj-y += clk.o clkgate-separated.o
6 6
7obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o 7obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o
8obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o 8obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o
9obj-$(CONFIG_ARCH_HIX5HD2) += clk-hix5hd2.o
diff --git a/drivers/clk/hisilicon/clk-hix5hd2.c b/drivers/clk/hisilicon/clk-hix5hd2.c
new file mode 100644
index 000000000000..e5fcfb4e32ef
--- /dev/null
+++ b/drivers/clk/hisilicon/clk-hix5hd2.c
@@ -0,0 +1,101 @@
1/*
2 * Copyright (c) 2014 Linaro Ltd.
3 * Copyright (c) 2014 Hisilicon Limited.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 */
9
10#include <linux/of_address.h>
11#include <dt-bindings/clock/hix5hd2-clock.h>
12#include "clk.h"
13
14static struct hisi_fixed_rate_clock hix5hd2_fixed_rate_clks[] __initdata = {
15 { HIX5HD2_FIXED_1200M, "1200m", NULL, CLK_IS_ROOT, 1200000000, },
16 { HIX5HD2_FIXED_400M, "400m", NULL, CLK_IS_ROOT, 400000000, },
17 { HIX5HD2_FIXED_48M, "48m", NULL, CLK_IS_ROOT, 48000000, },
18 { HIX5HD2_FIXED_24M, "24m", NULL, CLK_IS_ROOT, 24000000, },
19 { HIX5HD2_FIXED_600M, "600m", NULL, CLK_IS_ROOT, 600000000, },
20 { HIX5HD2_FIXED_300M, "300m", NULL, CLK_IS_ROOT, 300000000, },
21 { HIX5HD2_FIXED_75M, "75m", NULL, CLK_IS_ROOT, 75000000, },
22 { HIX5HD2_FIXED_200M, "200m", NULL, CLK_IS_ROOT, 200000000, },
23 { HIX5HD2_FIXED_100M, "100m", NULL, CLK_IS_ROOT, 100000000, },
24 { HIX5HD2_FIXED_40M, "40m", NULL, CLK_IS_ROOT, 40000000, },
25 { HIX5HD2_FIXED_150M, "150m", NULL, CLK_IS_ROOT, 150000000, },
26 { HIX5HD2_FIXED_1728M, "1728m", NULL, CLK_IS_ROOT, 1728000000, },
27 { HIX5HD2_FIXED_28P8M, "28p8m", NULL, CLK_IS_ROOT, 28000000, },
28 { HIX5HD2_FIXED_432M, "432m", NULL, CLK_IS_ROOT, 432000000, },
29 { HIX5HD2_FIXED_345P6M, "345p6m", NULL, CLK_IS_ROOT, 345000000, },
30 { HIX5HD2_FIXED_288M, "288m", NULL, CLK_IS_ROOT, 288000000, },
31 { HIX5HD2_FIXED_60M, "60m", NULL, CLK_IS_ROOT, 60000000, },
32 { HIX5HD2_FIXED_750M, "750m", NULL, CLK_IS_ROOT, 750000000, },
33 { HIX5HD2_FIXED_500M, "500m", NULL, CLK_IS_ROOT, 500000000, },
34 { HIX5HD2_FIXED_54M, "54m", NULL, CLK_IS_ROOT, 54000000, },
35 { HIX5HD2_FIXED_27M, "27m", NULL, CLK_IS_ROOT, 27000000, },
36 { HIX5HD2_FIXED_1500M, "1500m", NULL, CLK_IS_ROOT, 1500000000, },
37 { HIX5HD2_FIXED_375M, "375m", NULL, CLK_IS_ROOT, 375000000, },
38 { HIX5HD2_FIXED_187M, "187m", NULL, CLK_IS_ROOT, 187000000, },
39 { HIX5HD2_FIXED_250M, "250m", NULL, CLK_IS_ROOT, 250000000, },
40 { HIX5HD2_FIXED_125M, "125m", NULL, CLK_IS_ROOT, 125000000, },
41 { HIX5HD2_FIXED_2P02M, "2m", NULL, CLK_IS_ROOT, 2000000, },
42 { HIX5HD2_FIXED_50M, "50m", NULL, CLK_IS_ROOT, 50000000, },
43 { HIX5HD2_FIXED_25M, "25m", NULL, CLK_IS_ROOT, 25000000, },
44 { HIX5HD2_FIXED_83M, "83m", NULL, CLK_IS_ROOT, 83333333, },
45};
46
47static const char *sfc_mux_p[] __initconst = {
48 "24m", "150m", "200m", "100m", "75m", };
49static u32 sfc_mux_table[] = {0, 4, 5, 6, 7};
50
51static const char *sdio1_mux_p[] __initconst = {
52 "75m", "100m", "50m", "15m", };
53static u32 sdio1_mux_table[] = {0, 1, 2, 3};
54
55static const char *fephy_mux_p[] __initconst = { "25m", "125m"};
56static u32 fephy_mux_table[] = {0, 1};
57
58
59static struct hisi_mux_clock hix5hd2_mux_clks[] __initdata = {
60 { HIX5HD2_SFC_MUX, "sfc_mux", sfc_mux_p, ARRAY_SIZE(sfc_mux_p),
61 CLK_SET_RATE_PARENT, 0x5c, 8, 3, 0, sfc_mux_table, },
62 { HIX5HD2_MMC_MUX, "mmc_mux", sdio1_mux_p, ARRAY_SIZE(sdio1_mux_p),
63 CLK_SET_RATE_PARENT, 0xa0, 8, 2, 0, sdio1_mux_table, },
64 { HIX5HD2_FEPHY_MUX, "fephy_mux",
65 fephy_mux_p, ARRAY_SIZE(fephy_mux_p),
66 CLK_SET_RATE_PARENT, 0x120, 8, 2, 0, fephy_mux_table, },
67};
68
69static struct hisi_gate_clock hix5hd2_gate_clks[] __initdata = {
70 /*sfc*/
71 { HIX5HD2_SFC_CLK, "clk_sfc", "sfc_mux",
72 CLK_SET_RATE_PARENT, 0x5c, 0, 0, },
73 { HIX5HD2_SFC_RST, "rst_sfc", "clk_sfc",
74 CLK_SET_RATE_PARENT, 0x5c, 4, CLK_GATE_SET_TO_DISABLE, },
75 /*sdio1*/
76 { HIX5HD2_MMC_BIU_CLK, "clk_mmc_biu", "200m",
77 CLK_SET_RATE_PARENT, 0xa0, 0, 0, },
78 { HIX5HD2_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux",
79 CLK_SET_RATE_PARENT, 0xa0, 1, 0, },
80 { HIX5HD2_MMC_CIU_RST, "rst_mmc_ciu", "clk_mmc_ciu",
81 CLK_SET_RATE_PARENT, 0xa0, 4, CLK_GATE_SET_TO_DISABLE, },
82};
83
84static void __init hix5hd2_clk_init(struct device_node *np)
85{
86 struct hisi_clock_data *clk_data;
87
88 clk_data = hisi_clk_init(np, HIX5HD2_NR_CLKS);
89 if (!clk_data)
90 return;
91
92 hisi_clk_register_fixed_rate(hix5hd2_fixed_rate_clks,
93 ARRAY_SIZE(hix5hd2_fixed_rate_clks),
94 clk_data);
95 hisi_clk_register_mux(hix5hd2_mux_clks, ARRAY_SIZE(hix5hd2_mux_clks),
96 clk_data);
97 hisi_clk_register_gate(hix5hd2_gate_clks,
98 ARRAY_SIZE(hix5hd2_gate_clks), clk_data);
99}
100
101CLK_OF_DECLARE(hix5hd2_clk, "hisilicon,hix5hd2-clock", hix5hd2_clk_init);
diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c
index 276f672e7b1a..a078e84f7b05 100644
--- a/drivers/clk/hisilicon/clk.c
+++ b/drivers/clk/hisilicon/clk.c
@@ -127,11 +127,14 @@ void __init hisi_clk_register_mux(struct hisi_mux_clock *clks,
127 int i; 127 int i;
128 128
129 for (i = 0; i < nums; i++) { 129 for (i = 0; i < nums; i++) {
130 clk = clk_register_mux(NULL, clks[i].name, clks[i].parent_names, 130 u32 mask = BIT(clks[i].width) - 1;
131 clks[i].num_parents, clks[i].flags, 131
132 base + clks[i].offset, clks[i].shift, 132 clk = clk_register_mux_table(NULL, clks[i].name,
133 clks[i].width, clks[i].mux_flags, 133 clks[i].parent_names,
134 &hisi_clk_lock); 134 clks[i].num_parents, clks[i].flags,
135 base + clks[i].offset, clks[i].shift,
136 mask, clks[i].mux_flags,
137 clks[i].table, &hisi_clk_lock);
135 if (IS_ERR(clk)) { 138 if (IS_ERR(clk)) {
136 pr_err("%s: failed to register clock %s\n", 139 pr_err("%s: failed to register clock %s\n",
137 __func__, clks[i].name); 140 __func__, clks[i].name);
@@ -174,6 +177,34 @@ void __init hisi_clk_register_divider(struct hisi_divider_clock *clks,
174 } 177 }
175} 178}
176 179
180void __init hisi_clk_register_gate(struct hisi_gate_clock *clks,
181 int nums, struct hisi_clock_data *data)
182{
183 struct clk *clk;
184 void __iomem *base = data->base;
185 int i;
186
187 for (i = 0; i < nums; i++) {
188 clk = clk_register_gate(NULL, clks[i].name,
189 clks[i].parent_name,
190 clks[i].flags,
191 base + clks[i].offset,
192 clks[i].bit_idx,
193 clks[i].gate_flags,
194 &hisi_clk_lock);
195 if (IS_ERR(clk)) {
196 pr_err("%s: failed to register clock %s\n",
197 __func__, clks[i].name);
198 continue;
199 }
200
201 if (clks[i].alias)
202 clk_register_clkdev(clk, clks[i].alias, NULL);
203
204 data->clk_data.clks[clks[i].id] = clk;
205 }
206}
207
177void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks, 208void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *clks,
178 int nums, struct hisi_clock_data *data) 209 int nums, struct hisi_clock_data *data)
179{ 210{
diff --git a/drivers/clk/hisilicon/clk.h b/drivers/clk/hisilicon/clk.h
index 43fa5da88f02..31083ffc0650 100644
--- a/drivers/clk/hisilicon/clk.h
+++ b/drivers/clk/hisilicon/clk.h
@@ -62,6 +62,7 @@ struct hisi_mux_clock {
62 u8 shift; 62 u8 shift;
63 u8 width; 63 u8 width;
64 u8 mux_flags; 64 u8 mux_flags;
65 u32 *table;
65 const char *alias; 66 const char *alias;
66}; 67};
67 68
@@ -103,6 +104,8 @@ void __init hisi_clk_register_mux(struct hisi_mux_clock *, int,
103 struct hisi_clock_data *); 104 struct hisi_clock_data *);
104void __init hisi_clk_register_divider(struct hisi_divider_clock *, 105void __init hisi_clk_register_divider(struct hisi_divider_clock *,
105 int, struct hisi_clock_data *); 106 int, struct hisi_clock_data *);
107void __init hisi_clk_register_gate(struct hisi_gate_clock *,
108 int, struct hisi_clock_data *);
106void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *, 109void __init hisi_clk_register_gate_sep(struct hisi_gate_clock *,
107 int, struct hisi_clock_data *); 110 int, struct hisi_clock_data *);
108#endif /* __HISI_CLK_H */ 111#endif /* __HISI_CLK_H */
diff --git a/drivers/clk/mvebu/Kconfig b/drivers/clk/mvebu/Kconfig
index 693f7be129f1..3b34dba9178d 100644
--- a/drivers/clk/mvebu/Kconfig
+++ b/drivers/clk/mvebu/Kconfig
@@ -34,3 +34,7 @@ config DOVE_CLK
34config KIRKWOOD_CLK 34config KIRKWOOD_CLK
35 bool 35 bool
36 select MVEBU_CLK_COMMON 36 select MVEBU_CLK_COMMON
37
38config ORION_CLK
39 bool
40 select MVEBU_CLK_COMMON
diff --git a/drivers/clk/mvebu/Makefile b/drivers/clk/mvebu/Makefile
index 4c66162fb0b4..a9a56fc01901 100644
--- a/drivers/clk/mvebu/Makefile
+++ b/drivers/clk/mvebu/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_ARMADA_38X_CLK) += armada-38x.o
8obj-$(CONFIG_ARMADA_XP_CLK) += armada-xp.o 8obj-$(CONFIG_ARMADA_XP_CLK) += armada-xp.o
9obj-$(CONFIG_DOVE_CLK) += dove.o 9obj-$(CONFIG_DOVE_CLK) += dove.o
10obj-$(CONFIG_KIRKWOOD_CLK) += kirkwood.o 10obj-$(CONFIG_KIRKWOOD_CLK) += kirkwood.o
11obj-$(CONFIG_ORION_CLK) += orion.o
diff --git a/drivers/clk/mvebu/orion.c b/drivers/clk/mvebu/orion.c
new file mode 100644
index 000000000000..fd129566c1ce
--- /dev/null
+++ b/drivers/clk/mvebu/orion.c
@@ -0,0 +1,210 @@
1/*
2 * Marvell Orion SoC clocks
3 *
4 * Copyright (C) 2014 Thomas Petazzoni
5 *
6 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
11 */
12
13#include <linux/kernel.h>
14#include <linux/clk-provider.h>
15#include <linux/io.h>
16#include <linux/of.h>
17#include "common.h"
18
19static const struct coreclk_ratio orion_coreclk_ratios[] __initconst = {
20 { .id = 0, .name = "ddrclk", }
21};
22
23/*
24 * Orion 5182
25 */
26
27#define SAR_MV88F5182_TCLK_FREQ 8
28#define SAR_MV88F5182_TCLK_FREQ_MASK 0x3
29
30static u32 __init mv88f5182_get_tclk_freq(void __iomem *sar)
31{
32 u32 opt = (readl(sar) >> SAR_MV88F5182_TCLK_FREQ) &
33 SAR_MV88F5182_TCLK_FREQ_MASK;
34 if (opt == 1)
35 return 150000000;
36 else if (opt == 2)
37 return 166666667;
38 else
39 return 0;
40}
41
42#define SAR_MV88F5182_CPU_FREQ 4
43#define SAR_MV88F5182_CPU_FREQ_MASK 0xf
44
45static u32 __init mv88f5182_get_cpu_freq(void __iomem *sar)
46{
47 u32 opt = (readl(sar) >> SAR_MV88F5182_CPU_FREQ) &
48 SAR_MV88F5182_CPU_FREQ_MASK;
49 if (opt == 0)
50 return 333333333;
51 else if (opt == 1 || opt == 2)
52 return 400000000;
53 else if (opt == 3)
54 return 500000000;
55 else
56 return 0;
57}
58
59static void __init mv88f5182_get_clk_ratio(void __iomem *sar, int id,
60 int *mult, int *div)
61{
62 u32 opt = (readl(sar) >> SAR_MV88F5182_CPU_FREQ) &
63 SAR_MV88F5182_CPU_FREQ_MASK;
64 if (opt == 0 || opt == 1) {
65 *mult = 1;
66 *div = 2;
67 } else if (opt == 2 || opt == 3) {
68 *mult = 1;
69 *div = 3;
70 } else {
71 *mult = 0;
72 *div = 1;
73 }
74}
75
76static const struct coreclk_soc_desc mv88f5182_coreclks = {
77 .get_tclk_freq = mv88f5182_get_tclk_freq,
78 .get_cpu_freq = mv88f5182_get_cpu_freq,
79 .get_clk_ratio = mv88f5182_get_clk_ratio,
80 .ratios = orion_coreclk_ratios,
81 .num_ratios = ARRAY_SIZE(orion_coreclk_ratios),
82};
83
84static void __init mv88f5182_clk_init(struct device_node *np)
85{
86 return mvebu_coreclk_setup(np, &mv88f5182_coreclks);
87}
88
89CLK_OF_DECLARE(mv88f5182_clk, "marvell,mv88f5182-core-clock", mv88f5182_clk_init);
90
91/*
92 * Orion 5281
93 */
94
95static u32 __init mv88f5281_get_tclk_freq(void __iomem *sar)
96{
97 /* On 5281, tclk is always 166 Mhz */
98 return 166666667;
99}
100
101#define SAR_MV88F5281_CPU_FREQ 4
102#define SAR_MV88F5281_CPU_FREQ_MASK 0xf
103
104static u32 __init mv88f5281_get_cpu_freq(void __iomem *sar)
105{
106 u32 opt = (readl(sar) >> SAR_MV88F5281_CPU_FREQ) &
107 SAR_MV88F5281_CPU_FREQ_MASK;
108 if (opt == 1 || opt == 2)
109 return 400000000;
110 else if (opt == 3)
111 return 500000000;
112 else
113 return 0;
114}
115
116static void __init mv88f5281_get_clk_ratio(void __iomem *sar, int id,
117 int *mult, int *div)
118{
119 u32 opt = (readl(sar) >> SAR_MV88F5281_CPU_FREQ) &
120 SAR_MV88F5281_CPU_FREQ_MASK;
121 if (opt == 1) {
122 *mult = 1;
123 *div = 2;
124 } else if (opt == 2 || opt == 3) {
125 *mult = 1;
126 *div = 3;
127 } else {
128 *mult = 0;
129 *div = 1;
130 }
131}
132
133static const struct coreclk_soc_desc mv88f5281_coreclks = {
134 .get_tclk_freq = mv88f5281_get_tclk_freq,
135 .get_cpu_freq = mv88f5281_get_cpu_freq,
136 .get_clk_ratio = mv88f5281_get_clk_ratio,
137 .ratios = orion_coreclk_ratios,
138 .num_ratios = ARRAY_SIZE(orion_coreclk_ratios),
139};
140
141static void __init mv88f5281_clk_init(struct device_node *np)
142{
143 return mvebu_coreclk_setup(np, &mv88f5281_coreclks);
144}
145
146CLK_OF_DECLARE(mv88f5281_clk, "marvell,mv88f5281-core-clock", mv88f5281_clk_init);
147
148/*
149 * Orion 6183
150 */
151
152#define SAR_MV88F6183_TCLK_FREQ 9
153#define SAR_MV88F6183_TCLK_FREQ_MASK 0x1
154
155static u32 __init mv88f6183_get_tclk_freq(void __iomem *sar)
156{
157 u32 opt = (readl(sar) >> SAR_MV88F6183_TCLK_FREQ) &
158 SAR_MV88F6183_TCLK_FREQ_MASK;
159 if (opt == 0)
160 return 133333333;
161 else if (opt == 1)
162 return 166666667;
163 else
164 return 0;
165}
166
167#define SAR_MV88F6183_CPU_FREQ 1
168#define SAR_MV88F6183_CPU_FREQ_MASK 0x3f
169
170static u32 __init mv88f6183_get_cpu_freq(void __iomem *sar)
171{
172 u32 opt = (readl(sar) >> SAR_MV88F6183_CPU_FREQ) &
173 SAR_MV88F6183_CPU_FREQ_MASK;
174 if (opt == 9)
175 return 333333333;
176 else if (opt == 17)
177 return 400000000;
178 else
179 return 0;
180}
181
182static void __init mv88f6183_get_clk_ratio(void __iomem *sar, int id,
183 int *mult, int *div)
184{
185 u32 opt = (readl(sar) >> SAR_MV88F6183_CPU_FREQ) &
186 SAR_MV88F6183_CPU_FREQ_MASK;
187 if (opt == 9 || opt == 17) {
188 *mult = 1;
189 *div = 2;
190 } else {
191 *mult = 0;
192 *div = 1;
193 }
194}
195
196static const struct coreclk_soc_desc mv88f6183_coreclks = {
197 .get_tclk_freq = mv88f6183_get_tclk_freq,
198 .get_cpu_freq = mv88f6183_get_cpu_freq,
199 .get_clk_ratio = mv88f6183_get_clk_ratio,
200 .ratios = orion_coreclk_ratios,
201 .num_ratios = ARRAY_SIZE(orion_coreclk_ratios),
202};
203
204
205static void __init mv88f6183_clk_init(struct device_node *np)
206{
207 return mvebu_coreclk_setup(np, &mv88f6183_coreclks);
208}
209
210CLK_OF_DECLARE(mv88f6183_clk, "marvell,mv88f6183-core-clock", mv88f6183_clk_init);
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 995bcfa021a4..7f696b7d4422 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -13,10 +13,10 @@ config MSM_GCC_8660
13 i2c, USB, SD/eMMC, etc. 13 i2c, USB, SD/eMMC, etc.
14 14
15config MSM_GCC_8960 15config MSM_GCC_8960
16 tristate "MSM8960 Global Clock Controller" 16 tristate "APQ8064/MSM8960 Global Clock Controller"
17 depends on COMMON_CLK_QCOM 17 depends on COMMON_CLK_QCOM
18 help 18 help
19 Support for the global clock controller on msm8960 devices. 19 Support for the global clock controller on apq8064/msm8960 devices.
20 Say Y if you want to use peripheral devices such as UART, SPI, 20 Say Y if you want to use peripheral devices such as UART, SPI,
21 i2c, USB, SD/eMMC, SATA, PCIe, etc. 21 i2c, USB, SD/eMMC, SATA, PCIe, etc.
22 22
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index f60db2ef1aee..689e05bf4f95 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -1,5 +1,6 @@
1obj-$(CONFIG_COMMON_CLK_QCOM) += clk-qcom.o 1obj-$(CONFIG_COMMON_CLK_QCOM) += clk-qcom.o
2 2
3clk-qcom-y += common.o
3clk-qcom-y += clk-regmap.o 4clk-qcom-y += clk-regmap.o
4clk-qcom-y += clk-pll.o 5clk-qcom-y += clk-pll.o
5clk-qcom-y += clk-rcg.o 6clk-qcom-y += clk-rcg.o
diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h
index 1d6b6dece328..b9ec11dfd1b4 100644
--- a/drivers/clk/qcom/clk-rcg.h
+++ b/drivers/clk/qcom/clk-rcg.h
@@ -155,5 +155,8 @@ struct clk_rcg2 {
155#define to_clk_rcg2(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg2, clkr) 155#define to_clk_rcg2(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg2, clkr)
156 156
157extern const struct clk_ops clk_rcg2_ops; 157extern const struct clk_ops clk_rcg2_ops;
158extern const struct clk_ops clk_edp_pixel_ops;
159extern const struct clk_ops clk_byte_ops;
160extern const struct clk_ops clk_pixel_ops;
158 161
159#endif 162#endif
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c
index 00f878a04d3f..cd185d5cc67a 100644
--- a/drivers/clk/qcom/clk-rcg2.c
+++ b/drivers/clk/qcom/clk-rcg2.c
@@ -19,6 +19,7 @@
19#include <linux/clk-provider.h> 19#include <linux/clk-provider.h>
20#include <linux/delay.h> 20#include <linux/delay.h>
21#include <linux/regmap.h> 21#include <linux/regmap.h>
22#include <linux/math64.h>
22 23
23#include <asm/div64.h> 24#include <asm/div64.h>
24 25
@@ -55,7 +56,7 @@ static int clk_rcg2_is_enabled(struct clk_hw *hw)
55 if (ret) 56 if (ret)
56 return ret; 57 return ret;
57 58
58 return (cmd & CMD_ROOT_OFF) != 0; 59 return (cmd & CMD_ROOT_OFF) == 0;
59} 60}
60 61
61static u8 clk_rcg2_get_parent(struct clk_hw *hw) 62static u8 clk_rcg2_get_parent(struct clk_hw *hw)
@@ -181,7 +182,8 @@ struct freq_tbl *find_freq(const struct freq_tbl *f, unsigned long rate)
181 if (rate <= f->freq) 182 if (rate <= f->freq)
182 return f; 183 return f;
183 184
184 return NULL; 185 /* Default to our fastest rate */
186 return f - 1;
185} 187}
186 188
187static long _freq_tbl_determine_rate(struct clk_hw *hw, 189static long _freq_tbl_determine_rate(struct clk_hw *hw,
@@ -224,31 +226,25 @@ static long clk_rcg2_determine_rate(struct clk_hw *hw, unsigned long rate,
224 return _freq_tbl_determine_rate(hw, rcg->freq_tbl, rate, p_rate, p); 226 return _freq_tbl_determine_rate(hw, rcg->freq_tbl, rate, p_rate, p);
225} 227}
226 228
227static int __clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate) 229static int clk_rcg2_configure(struct clk_rcg2 *rcg, const struct freq_tbl *f)
228{ 230{
229 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
230 const struct freq_tbl *f;
231 u32 cfg, mask; 231 u32 cfg, mask;
232 int ret; 232 int ret;
233 233
234 f = find_freq(rcg->freq_tbl, rate);
235 if (!f)
236 return -EINVAL;
237
238 if (rcg->mnd_width && f->n) { 234 if (rcg->mnd_width && f->n) {
239 mask = BIT(rcg->mnd_width) - 1; 235 mask = BIT(rcg->mnd_width) - 1;
240 ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + M_REG, 236 ret = regmap_update_bits(rcg->clkr.regmap,
241 mask, f->m); 237 rcg->cmd_rcgr + M_REG, mask, f->m);
242 if (ret) 238 if (ret)
243 return ret; 239 return ret;
244 240
245 ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + N_REG, 241 ret = regmap_update_bits(rcg->clkr.regmap,
246 mask, ~(f->n - f->m)); 242 rcg->cmd_rcgr + N_REG, mask, ~(f->n - f->m));
247 if (ret) 243 if (ret)
248 return ret; 244 return ret;
249 245
250 ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + D_REG, 246 ret = regmap_update_bits(rcg->clkr.regmap,
251 mask, ~f->n); 247 rcg->cmd_rcgr + D_REG, mask, ~f->n);
252 if (ret) 248 if (ret)
253 return ret; 249 return ret;
254 } 250 }
@@ -259,14 +255,26 @@ static int __clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate)
259 cfg |= rcg->parent_map[f->src] << CFG_SRC_SEL_SHIFT; 255 cfg |= rcg->parent_map[f->src] << CFG_SRC_SEL_SHIFT;
260 if (rcg->mnd_width && f->n) 256 if (rcg->mnd_width && f->n)
261 cfg |= CFG_MODE_DUAL_EDGE; 257 cfg |= CFG_MODE_DUAL_EDGE;
262 ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG, mask, 258 ret = regmap_update_bits(rcg->clkr.regmap,
263 cfg); 259 rcg->cmd_rcgr + CFG_REG, mask, cfg);
264 if (ret) 260 if (ret)
265 return ret; 261 return ret;
266 262
267 return update_config(rcg); 263 return update_config(rcg);
268} 264}
269 265
266static int __clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate)
267{
268 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
269 const struct freq_tbl *f;
270
271 f = find_freq(rcg->freq_tbl, rate);
272 if (!f)
273 return -EINVAL;
274
275 return clk_rcg2_configure(rcg, f);
276}
277
270static int clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate, 278static int clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate,
271 unsigned long parent_rate) 279 unsigned long parent_rate)
272{ 280{
@@ -289,3 +297,265 @@ const struct clk_ops clk_rcg2_ops = {
289 .set_rate_and_parent = clk_rcg2_set_rate_and_parent, 297 .set_rate_and_parent = clk_rcg2_set_rate_and_parent,
290}; 298};
291EXPORT_SYMBOL_GPL(clk_rcg2_ops); 299EXPORT_SYMBOL_GPL(clk_rcg2_ops);
300
301struct frac_entry {
302 int num;
303 int den;
304};
305
306static const struct frac_entry frac_table_675m[] = { /* link rate of 270M */
307 { 52, 295 }, /* 119 M */
308 { 11, 57 }, /* 130.25 M */
309 { 63, 307 }, /* 138.50 M */
310 { 11, 50 }, /* 148.50 M */
311 { 47, 206 }, /* 154 M */
312 { 31, 100 }, /* 205.25 M */
313 { 107, 269 }, /* 268.50 M */
314 { },
315};
316
317static struct frac_entry frac_table_810m[] = { /* Link rate of 162M */
318 { 31, 211 }, /* 119 M */
319 { 32, 199 }, /* 130.25 M */
320 { 63, 307 }, /* 138.50 M */
321 { 11, 60 }, /* 148.50 M */
322 { 50, 263 }, /* 154 M */
323 { 31, 120 }, /* 205.25 M */
324 { 119, 359 }, /* 268.50 M */
325 { },
326};
327
328static int clk_edp_pixel_set_rate(struct clk_hw *hw, unsigned long rate,
329 unsigned long parent_rate)
330{
331 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
332 struct freq_tbl f = *rcg->freq_tbl;
333 const struct frac_entry *frac;
334 int delta = 100000;
335 s64 src_rate = parent_rate;
336 s64 request;
337 u32 mask = BIT(rcg->hid_width) - 1;
338 u32 hid_div;
339
340 if (src_rate == 810000000)
341 frac = frac_table_810m;
342 else
343 frac = frac_table_675m;
344
345 for (; frac->num; frac++) {
346 request = rate;
347 request *= frac->den;
348 request = div_s64(request, frac->num);
349 if ((src_rate < (request - delta)) ||
350 (src_rate > (request + delta)))
351 continue;
352
353 regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG,
354 &hid_div);
355 f.pre_div = hid_div;
356 f.pre_div >>= CFG_SRC_DIV_SHIFT;
357 f.pre_div &= mask;
358 f.m = frac->num;
359 f.n = frac->den;
360
361 return clk_rcg2_configure(rcg, &f);
362 }
363
364 return -EINVAL;
365}
366
367static int clk_edp_pixel_set_rate_and_parent(struct clk_hw *hw,
368 unsigned long rate, unsigned long parent_rate, u8 index)
369{
370 /* Parent index is set statically in frequency table */
371 return clk_edp_pixel_set_rate(hw, rate, parent_rate);
372}
373
374static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate,
375 unsigned long *p_rate, struct clk **p)
376{
377 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
378 const struct freq_tbl *f = rcg->freq_tbl;
379 const struct frac_entry *frac;
380 int delta = 100000;
381 s64 src_rate = *p_rate;
382 s64 request;
383 u32 mask = BIT(rcg->hid_width) - 1;
384 u32 hid_div;
385
386 /* Force the correct parent */
387 *p = clk_get_parent_by_index(hw->clk, f->src);
388
389 if (src_rate == 810000000)
390 frac = frac_table_810m;
391 else
392 frac = frac_table_675m;
393
394 for (; frac->num; frac++) {
395 request = rate;
396 request *= frac->den;
397 request = div_s64(request, frac->num);
398 if ((src_rate < (request - delta)) ||
399 (src_rate > (request + delta)))
400 continue;
401
402 regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG,
403 &hid_div);
404 hid_div >>= CFG_SRC_DIV_SHIFT;
405 hid_div &= mask;
406
407 return calc_rate(src_rate, frac->num, frac->den, !!frac->den,
408 hid_div);
409 }
410
411 return -EINVAL;
412}
413
414const struct clk_ops clk_edp_pixel_ops = {
415 .is_enabled = clk_rcg2_is_enabled,
416 .get_parent = clk_rcg2_get_parent,
417 .set_parent = clk_rcg2_set_parent,
418 .recalc_rate = clk_rcg2_recalc_rate,
419 .set_rate = clk_edp_pixel_set_rate,
420 .set_rate_and_parent = clk_edp_pixel_set_rate_and_parent,
421 .determine_rate = clk_edp_pixel_determine_rate,
422};
423EXPORT_SYMBOL_GPL(clk_edp_pixel_ops);
424
425static long clk_byte_determine_rate(struct clk_hw *hw, unsigned long rate,
426 unsigned long *p_rate, struct clk **p)
427{
428 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
429 const struct freq_tbl *f = rcg->freq_tbl;
430 unsigned long parent_rate, div;
431 u32 mask = BIT(rcg->hid_width) - 1;
432
433 if (rate == 0)
434 return -EINVAL;
435
436 *p = clk_get_parent_by_index(hw->clk, f->src);
437 *p_rate = parent_rate = __clk_round_rate(*p, rate);
438
439 div = DIV_ROUND_UP((2 * parent_rate), rate) - 1;
440 div = min_t(u32, div, mask);
441
442 return calc_rate(parent_rate, 0, 0, 0, div);
443}
444
445static int clk_byte_set_rate(struct clk_hw *hw, unsigned long rate,
446 unsigned long parent_rate)
447{
448 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
449 struct freq_tbl f = *rcg->freq_tbl;
450 unsigned long div;
451 u32 mask = BIT(rcg->hid_width) - 1;
452
453 div = DIV_ROUND_UP((2 * parent_rate), rate) - 1;
454 div = min_t(u32, div, mask);
455
456 f.pre_div = div;
457
458 return clk_rcg2_configure(rcg, &f);
459}
460
461static int clk_byte_set_rate_and_parent(struct clk_hw *hw,
462 unsigned long rate, unsigned long parent_rate, u8 index)
463{
464 /* Parent index is set statically in frequency table */
465 return clk_byte_set_rate(hw, rate, parent_rate);
466}
467
468const struct clk_ops clk_byte_ops = {
469 .is_enabled = clk_rcg2_is_enabled,
470 .get_parent = clk_rcg2_get_parent,
471 .set_parent = clk_rcg2_set_parent,
472 .recalc_rate = clk_rcg2_recalc_rate,
473 .set_rate = clk_byte_set_rate,
474 .set_rate_and_parent = clk_byte_set_rate_and_parent,
475 .determine_rate = clk_byte_determine_rate,
476};
477EXPORT_SYMBOL_GPL(clk_byte_ops);
478
479static const struct frac_entry frac_table_pixel[] = {
480 { 3, 8 },
481 { 2, 9 },
482 { 4, 9 },
483 { 1, 1 },
484 { }
485};
486
487static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate,
488 unsigned long *p_rate, struct clk **p)
489{
490 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
491 unsigned long request, src_rate;
492 int delta = 100000;
493 const struct freq_tbl *f = rcg->freq_tbl;
494 const struct frac_entry *frac = frac_table_pixel;
495 struct clk *parent = *p = clk_get_parent_by_index(hw->clk, f->src);
496
497 for (; frac->num; frac++) {
498 request = (rate * frac->den) / frac->num;
499
500 src_rate = __clk_round_rate(parent, request);
501 if ((src_rate < (request - delta)) ||
502 (src_rate > (request + delta)))
503 continue;
504
505 *p_rate = src_rate;
506 return (src_rate * frac->num) / frac->den;
507 }
508
509 return -EINVAL;
510}
511
512static int clk_pixel_set_rate(struct clk_hw *hw, unsigned long rate,
513 unsigned long parent_rate)
514{
515 struct clk_rcg2 *rcg = to_clk_rcg2(hw);
516 struct freq_tbl f = *rcg->freq_tbl;
517 const struct frac_entry *frac = frac_table_pixel;
518 unsigned long request, src_rate;
519 int delta = 100000;
520 u32 mask = BIT(rcg->hid_width) - 1;
521 u32 hid_div;
522 struct clk *parent = clk_get_parent_by_index(hw->clk, f.src);
523
524 for (; frac->num; frac++) {
525 request = (rate * frac->den) / frac->num;
526
527 src_rate = __clk_round_rate(parent, request);
528 if ((src_rate < (request - delta)) ||
529 (src_rate > (request + delta)))
530 continue;
531
532 regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG,
533 &hid_div);
534 f.pre_div = hid_div;
535 f.pre_div >>= CFG_SRC_DIV_SHIFT;
536 f.pre_div &= mask;
537 f.m = frac->num;
538 f.n = frac->den;
539
540 return clk_rcg2_configure(rcg, &f);
541 }
542 return -EINVAL;
543}
544
545static int clk_pixel_set_rate_and_parent(struct clk_hw *hw, unsigned long rate,
546 unsigned long parent_rate, u8 index)
547{
548 /* Parent index is set statically in frequency table */
549 return clk_pixel_set_rate(hw, rate, parent_rate);
550}
551
552const struct clk_ops clk_pixel_ops = {
553 .is_enabled = clk_rcg2_is_enabled,
554 .get_parent = clk_rcg2_get_parent,
555 .set_parent = clk_rcg2_set_parent,
556 .recalc_rate = clk_rcg2_recalc_rate,
557 .set_rate = clk_pixel_set_rate,
558 .set_rate_and_parent = clk_pixel_set_rate_and_parent,
559 .determine_rate = clk_pixel_determine_rate,
560};
561EXPORT_SYMBOL_GPL(clk_pixel_ops);
diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c
new file mode 100644
index 000000000000..9b5a1cfc6b91
--- /dev/null
+++ b/drivers/clk/qcom/common.c
@@ -0,0 +1,101 @@
1/*
2 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
3 *
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#include <linux/export.h>
15#include <linux/regmap.h>
16#include <linux/platform_device.h>
17#include <linux/clk-provider.h>
18#include <linux/reset-controller.h>
19
20#include "common.h"
21#include "clk-regmap.h"
22#include "reset.h"
23
24struct qcom_cc {
25 struct qcom_reset_controller reset;
26 struct clk_onecell_data data;
27 struct clk *clks[];
28};
29
30int qcom_cc_probe(struct platform_device *pdev, const struct qcom_cc_desc *desc)
31{
32 void __iomem *base;
33 struct resource *res;
34 int i, ret;
35 struct device *dev = &pdev->dev;
36 struct clk *clk;
37 struct clk_onecell_data *data;
38 struct clk **clks;
39 struct regmap *regmap;
40 struct qcom_reset_controller *reset;
41 struct qcom_cc *cc;
42 size_t num_clks = desc->num_clks;
43 struct clk_regmap **rclks = desc->clks;
44
45 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
46 base = devm_ioremap_resource(dev, res);
47 if (IS_ERR(base))
48 return PTR_ERR(base);
49
50 regmap = devm_regmap_init_mmio(dev, base, desc->config);
51 if (IS_ERR(regmap))
52 return PTR_ERR(regmap);
53
54 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
55 GFP_KERNEL);
56 if (!cc)
57 return -ENOMEM;
58
59 clks = cc->clks;
60 data = &cc->data;
61 data->clks = clks;
62 data->clk_num = num_clks;
63
64 for (i = 0; i < num_clks; i++) {
65 if (!rclks[i]) {
66 clks[i] = ERR_PTR(-ENOENT);
67 continue;
68 }
69 clk = devm_clk_register_regmap(dev, rclks[i]);
70 if (IS_ERR(clk))
71 return PTR_ERR(clk);
72 clks[i] = clk;
73 }
74
75 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
76 if (ret)
77 return ret;
78
79 reset = &cc->reset;
80 reset->rcdev.of_node = dev->of_node;
81 reset->rcdev.ops = &qcom_reset_ops;
82 reset->rcdev.owner = dev->driver->owner;
83 reset->rcdev.nr_resets = desc->num_resets;
84 reset->regmap = regmap;
85 reset->reset_map = desc->resets;
86 platform_set_drvdata(pdev, &reset->rcdev);
87
88 ret = reset_controller_register(&reset->rcdev);
89 if (ret)
90 of_clk_del_provider(dev->of_node);
91
92 return ret;
93}
94EXPORT_SYMBOL_GPL(qcom_cc_probe);
95
96void qcom_cc_remove(struct platform_device *pdev)
97{
98 of_clk_del_provider(pdev->dev.of_node);
99 reset_controller_unregister(platform_get_drvdata(pdev));
100}
101EXPORT_SYMBOL_GPL(qcom_cc_remove);
diff --git a/drivers/clk/qcom/common.h b/drivers/clk/qcom/common.h
new file mode 100644
index 000000000000..2c3cfc860348
--- /dev/null
+++ b/drivers/clk/qcom/common.h
@@ -0,0 +1,34 @@
1/*
2 * Copyright (c) 2014, The Linux Foundation. All rights reserved.
3 *
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13#ifndef __QCOM_CLK_COMMON_H__
14#define __QCOM_CLK_COMMON_H__
15
16struct platform_device;
17struct regmap_config;
18struct clk_regmap;
19struct qcom_reset_map;
20
21struct qcom_cc_desc {
22 const struct regmap_config *config;
23 struct clk_regmap **clks;
24 size_t num_clks;
25 const struct qcom_reset_map *resets;
26 size_t num_resets;
27};
28
29extern int qcom_cc_probe(struct platform_device *pdev,
30 const struct qcom_cc_desc *desc);
31
32extern void qcom_cc_remove(struct platform_device *pdev);
33
34#endif
diff --git a/drivers/clk/qcom/gcc-msm8660.c b/drivers/clk/qcom/gcc-msm8660.c
index bc0b7f1fcfbe..0c4b727ae429 100644
--- a/drivers/clk/qcom/gcc-msm8660.c
+++ b/drivers/clk/qcom/gcc-msm8660.c
@@ -25,6 +25,7 @@
25#include <dt-bindings/clock/qcom,gcc-msm8660.h> 25#include <dt-bindings/clock/qcom,gcc-msm8660.h>
26#include <dt-bindings/reset/qcom,gcc-msm8660.h> 26#include <dt-bindings/reset/qcom,gcc-msm8660.h>
27 27
28#include "common.h"
28#include "clk-regmap.h" 29#include "clk-regmap.h"
29#include "clk-pll.h" 30#include "clk-pll.h"
30#include "clk-rcg.h" 31#include "clk-rcg.h"
@@ -2701,51 +2702,24 @@ static const struct regmap_config gcc_msm8660_regmap_config = {
2701 .fast_io = true, 2702 .fast_io = true,
2702}; 2703};
2703 2704
2705static const struct qcom_cc_desc gcc_msm8660_desc = {
2706 .config = &gcc_msm8660_regmap_config,
2707 .clks = gcc_msm8660_clks,
2708 .num_clks = ARRAY_SIZE(gcc_msm8660_clks),
2709 .resets = gcc_msm8660_resets,
2710 .num_resets = ARRAY_SIZE(gcc_msm8660_resets),
2711};
2712
2704static const struct of_device_id gcc_msm8660_match_table[] = { 2713static const struct of_device_id gcc_msm8660_match_table[] = {
2705 { .compatible = "qcom,gcc-msm8660" }, 2714 { .compatible = "qcom,gcc-msm8660" },
2706 { } 2715 { }
2707}; 2716};
2708MODULE_DEVICE_TABLE(of, gcc_msm8660_match_table); 2717MODULE_DEVICE_TABLE(of, gcc_msm8660_match_table);
2709 2718
2710struct qcom_cc {
2711 struct qcom_reset_controller reset;
2712 struct clk_onecell_data data;
2713 struct clk *clks[];
2714};
2715
2716static int gcc_msm8660_probe(struct platform_device *pdev) 2719static int gcc_msm8660_probe(struct platform_device *pdev)
2717{ 2720{
2718 void __iomem *base;
2719 struct resource *res;
2720 int i, ret;
2721 struct device *dev = &pdev->dev;
2722 struct clk *clk; 2721 struct clk *clk;
2723 struct clk_onecell_data *data; 2722 struct device *dev = &pdev->dev;
2724 struct clk **clks;
2725 struct regmap *regmap;
2726 size_t num_clks;
2727 struct qcom_reset_controller *reset;
2728 struct qcom_cc *cc;
2729
2730 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2731 base = devm_ioremap_resource(dev, res);
2732 if (IS_ERR(base))
2733 return PTR_ERR(base);
2734
2735 regmap = devm_regmap_init_mmio(dev, base, &gcc_msm8660_regmap_config);
2736 if (IS_ERR(regmap))
2737 return PTR_ERR(regmap);
2738
2739 num_clks = ARRAY_SIZE(gcc_msm8660_clks);
2740 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
2741 GFP_KERNEL);
2742 if (!cc)
2743 return -ENOMEM;
2744
2745 clks = cc->clks;
2746 data = &cc->data;
2747 data->clks = clks;
2748 data->clk_num = num_clks;
2749 2723
2750 /* Temporary until RPM clocks supported */ 2724 /* Temporary until RPM clocks supported */
2751 clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000); 2725 clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000);
@@ -2756,39 +2730,12 @@ static int gcc_msm8660_probe(struct platform_device *pdev)
2756 if (IS_ERR(clk)) 2730 if (IS_ERR(clk))
2757 return PTR_ERR(clk); 2731 return PTR_ERR(clk);
2758 2732
2759 for (i = 0; i < num_clks; i++) { 2733 return qcom_cc_probe(pdev, &gcc_msm8660_desc);
2760 if (!gcc_msm8660_clks[i])
2761 continue;
2762 clk = devm_clk_register_regmap(dev, gcc_msm8660_clks[i]);
2763 if (IS_ERR(clk))
2764 return PTR_ERR(clk);
2765 clks[i] = clk;
2766 }
2767
2768 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
2769 if (ret)
2770 return ret;
2771
2772 reset = &cc->reset;
2773 reset->rcdev.of_node = dev->of_node;
2774 reset->rcdev.ops = &qcom_reset_ops,
2775 reset->rcdev.owner = THIS_MODULE,
2776 reset->rcdev.nr_resets = ARRAY_SIZE(gcc_msm8660_resets),
2777 reset->regmap = regmap;
2778 reset->reset_map = gcc_msm8660_resets,
2779 platform_set_drvdata(pdev, &reset->rcdev);
2780
2781 ret = reset_controller_register(&reset->rcdev);
2782 if (ret)
2783 of_clk_del_provider(dev->of_node);
2784
2785 return ret;
2786} 2734}
2787 2735
2788static int gcc_msm8660_remove(struct platform_device *pdev) 2736static int gcc_msm8660_remove(struct platform_device *pdev)
2789{ 2737{
2790 of_clk_del_provider(pdev->dev.of_node); 2738 qcom_cc_remove(pdev);
2791 reset_controller_unregister(platform_get_drvdata(pdev));
2792 return 0; 2739 return 0;
2793} 2740}
2794 2741
diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c
index fd446ab2fd98..f4ffd91901f8 100644
--- a/drivers/clk/qcom/gcc-msm8960.c
+++ b/drivers/clk/qcom/gcc-msm8960.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * Copyright (c) 2013, The Linux Foundation. All rights reserved. 2 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
3 * 3 *
4 * This software is licensed under the terms of the GNU General Public 4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and 5 * License version 2, as published by the Free Software Foundation, and
@@ -25,6 +25,7 @@
25#include <dt-bindings/clock/qcom,gcc-msm8960.h> 25#include <dt-bindings/clock/qcom,gcc-msm8960.h>
26#include <dt-bindings/reset/qcom,gcc-msm8960.h> 26#include <dt-bindings/reset/qcom,gcc-msm8960.h>
27 27
28#include "common.h"
28#include "clk-regmap.h" 29#include "clk-regmap.h"
29#include "clk-pll.h" 30#include "clk-pll.h"
30#include "clk-rcg.h" 31#include "clk-rcg.h"
@@ -2809,7 +2810,7 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = {
2809 [PPSS_PROC_RESET] = { 0x2594, 1 }, 2810 [PPSS_PROC_RESET] = { 0x2594, 1 },
2810 [PPSS_RESET] = { 0x2594}, 2811 [PPSS_RESET] = { 0x2594},
2811 [DMA_BAM_RESET] = { 0x25c0, 7 }, 2812 [DMA_BAM_RESET] = { 0x25c0, 7 },
2812 [SIC_TIC_RESET] = { 0x2600, 7 }, 2813 [SPS_TIC_H_RESET] = { 0x2600, 7 },
2813 [SLIMBUS_H_RESET] = { 0x2620, 7 }, 2814 [SLIMBUS_H_RESET] = { 0x2620, 7 },
2814 [SFAB_CFPB_M_RESET] = { 0x2680, 7 }, 2815 [SFAB_CFPB_M_RESET] = { 0x2680, 7 },
2815 [SFAB_CFPB_S_RESET] = { 0x26c0, 7 }, 2816 [SFAB_CFPB_S_RESET] = { 0x26c0, 7 },
@@ -2822,7 +2823,7 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = {
2822 [SFAB_SFPB_M_RESET] = { 0x2780, 7 }, 2823 [SFAB_SFPB_M_RESET] = { 0x2780, 7 },
2823 [SFAB_SFPB_S_RESET] = { 0x27a0, 7 }, 2824 [SFAB_SFPB_S_RESET] = { 0x27a0, 7 },
2824 [RPM_PROC_RESET] = { 0x27c0, 7 }, 2825 [RPM_PROC_RESET] = { 0x27c0, 7 },
2825 [PMIC_SSBI2_RESET] = { 0x270c, 12 }, 2826 [PMIC_SSBI2_RESET] = { 0x280c, 12 },
2826 [SDC1_RESET] = { 0x2830 }, 2827 [SDC1_RESET] = { 0x2830 },
2827 [SDC2_RESET] = { 0x2850 }, 2828 [SDC2_RESET] = { 0x2850 },
2828 [SDC3_RESET] = { 0x2870 }, 2829 [SDC3_RESET] = { 0x2870 },
@@ -2867,6 +2868,16 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = {
2867 [RIVA_RESET] = { 0x35e0 }, 2868 [RIVA_RESET] = { 0x35e0 },
2868}; 2869};
2869 2870
2871static struct clk_regmap *gcc_apq8064_clks[] = {
2872 [PLL8] = &pll8.clkr,
2873 [PLL8_VOTE] = &pll8_vote,
2874 [GSBI7_UART_SRC] = &gsbi7_uart_src.clkr,
2875 [GSBI7_UART_CLK] = &gsbi7_uart_clk.clkr,
2876 [GSBI7_QUP_SRC] = &gsbi7_qup_src.clkr,
2877 [GSBI7_QUP_CLK] = &gsbi7_qup_clk.clkr,
2878 [GSBI7_H_CLK] = &gsbi7_h_clk.clkr,
2879};
2880
2870static const struct regmap_config gcc_msm8960_regmap_config = { 2881static const struct regmap_config gcc_msm8960_regmap_config = {
2871 .reg_bits = 32, 2882 .reg_bits = 32,
2872 .reg_stride = 4, 2883 .reg_stride = 4,
@@ -2875,51 +2886,38 @@ static const struct regmap_config gcc_msm8960_regmap_config = {
2875 .fast_io = true, 2886 .fast_io = true,
2876}; 2887};
2877 2888
2889static const struct qcom_cc_desc gcc_msm8960_desc = {
2890 .config = &gcc_msm8960_regmap_config,
2891 .clks = gcc_msm8960_clks,
2892 .num_clks = ARRAY_SIZE(gcc_msm8960_clks),
2893 .resets = gcc_msm8960_resets,
2894 .num_resets = ARRAY_SIZE(gcc_msm8960_resets),
2895};
2896
2897static const struct qcom_cc_desc gcc_apq8064_desc = {
2898 .config = &gcc_msm8960_regmap_config,
2899 .clks = gcc_apq8064_clks,
2900 .num_clks = ARRAY_SIZE(gcc_apq8064_clks),
2901 .resets = gcc_msm8960_resets,
2902 .num_resets = ARRAY_SIZE(gcc_msm8960_resets),
2903};
2904
2878static const struct of_device_id gcc_msm8960_match_table[] = { 2905static const struct of_device_id gcc_msm8960_match_table[] = {
2879 { .compatible = "qcom,gcc-msm8960" }, 2906 { .compatible = "qcom,gcc-msm8960", .data = &gcc_msm8960_desc },
2907 { .compatible = "qcom,gcc-apq8064", .data = &gcc_apq8064_desc },
2880 { } 2908 { }
2881}; 2909};
2882MODULE_DEVICE_TABLE(of, gcc_msm8960_match_table); 2910MODULE_DEVICE_TABLE(of, gcc_msm8960_match_table);
2883 2911
2884struct qcom_cc {
2885 struct qcom_reset_controller reset;
2886 struct clk_onecell_data data;
2887 struct clk *clks[];
2888};
2889
2890static int gcc_msm8960_probe(struct platform_device *pdev) 2912static int gcc_msm8960_probe(struct platform_device *pdev)
2891{ 2913{
2892 void __iomem *base;
2893 struct resource *res;
2894 int i, ret;
2895 struct device *dev = &pdev->dev;
2896 struct clk *clk; 2914 struct clk *clk;
2897 struct clk_onecell_data *data; 2915 struct device *dev = &pdev->dev;
2898 struct clk **clks; 2916 const struct of_device_id *match;
2899 struct regmap *regmap; 2917
2900 size_t num_clks; 2918 match = of_match_device(gcc_msm8960_match_table, &pdev->dev);
2901 struct qcom_reset_controller *reset; 2919 if (!match)
2902 struct qcom_cc *cc; 2920 return -EINVAL;
2903
2904 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2905 base = devm_ioremap_resource(dev, res);
2906 if (IS_ERR(base))
2907 return PTR_ERR(base);
2908
2909 regmap = devm_regmap_init_mmio(dev, base, &gcc_msm8960_regmap_config);
2910 if (IS_ERR(regmap))
2911 return PTR_ERR(regmap);
2912
2913 num_clks = ARRAY_SIZE(gcc_msm8960_clks);
2914 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
2915 GFP_KERNEL);
2916 if (!cc)
2917 return -ENOMEM;
2918
2919 clks = cc->clks;
2920 data = &cc->data;
2921 data->clks = clks;
2922 data->clk_num = num_clks;
2923 2921
2924 /* Temporary until RPM clocks supported */ 2922 /* Temporary until RPM clocks supported */
2925 clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000); 2923 clk = clk_register_fixed_rate(dev, "cxo", NULL, CLK_IS_ROOT, 19200000);
@@ -2930,39 +2928,12 @@ static int gcc_msm8960_probe(struct platform_device *pdev)
2930 if (IS_ERR(clk)) 2928 if (IS_ERR(clk))
2931 return PTR_ERR(clk); 2929 return PTR_ERR(clk);
2932 2930
2933 for (i = 0; i < num_clks; i++) { 2931 return qcom_cc_probe(pdev, match->data);
2934 if (!gcc_msm8960_clks[i])
2935 continue;
2936 clk = devm_clk_register_regmap(dev, gcc_msm8960_clks[i]);
2937 if (IS_ERR(clk))
2938 return PTR_ERR(clk);
2939 clks[i] = clk;
2940 }
2941
2942 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
2943 if (ret)
2944 return ret;
2945
2946 reset = &cc->reset;
2947 reset->rcdev.of_node = dev->of_node;
2948 reset->rcdev.ops = &qcom_reset_ops,
2949 reset->rcdev.owner = THIS_MODULE,
2950 reset->rcdev.nr_resets = ARRAY_SIZE(gcc_msm8960_resets),
2951 reset->regmap = regmap;
2952 reset->reset_map = gcc_msm8960_resets,
2953 platform_set_drvdata(pdev, &reset->rcdev);
2954
2955 ret = reset_controller_register(&reset->rcdev);
2956 if (ret)
2957 of_clk_del_provider(dev->of_node);
2958
2959 return ret;
2960} 2932}
2961 2933
2962static int gcc_msm8960_remove(struct platform_device *pdev) 2934static int gcc_msm8960_remove(struct platform_device *pdev)
2963{ 2935{
2964 of_clk_del_provider(pdev->dev.of_node); 2936 qcom_cc_remove(pdev);
2965 reset_controller_unregister(platform_get_drvdata(pdev));
2966 return 0; 2937 return 0;
2967} 2938}
2968 2939
diff --git a/drivers/clk/qcom/gcc-msm8974.c b/drivers/clk/qcom/gcc-msm8974.c
index 51d457e2b959..7af7c18d2144 100644
--- a/drivers/clk/qcom/gcc-msm8974.c
+++ b/drivers/clk/qcom/gcc-msm8974.c
@@ -25,6 +25,7 @@
25#include <dt-bindings/clock/qcom,gcc-msm8974.h> 25#include <dt-bindings/clock/qcom,gcc-msm8974.h>
26#include <dt-bindings/reset/qcom,gcc-msm8974.h> 26#include <dt-bindings/reset/qcom,gcc-msm8974.h>
27 27
28#include "common.h"
28#include "clk-regmap.h" 29#include "clk-regmap.h"
29#include "clk-pll.h" 30#include "clk-pll.h"
30#include "clk-rcg.h" 31#include "clk-rcg.h"
@@ -34,6 +35,7 @@
34#define P_XO 0 35#define P_XO 0
35#define P_GPLL0 1 36#define P_GPLL0 1
36#define P_GPLL1 1 37#define P_GPLL1 1
38#define P_GPLL4 2
37 39
38static const u8 gcc_xo_gpll0_map[] = { 40static const u8 gcc_xo_gpll0_map[] = {
39 [P_XO] = 0, 41 [P_XO] = 0,
@@ -45,6 +47,18 @@ static const char *gcc_xo_gpll0[] = {
45 "gpll0_vote", 47 "gpll0_vote",
46}; 48};
47 49
50static const u8 gcc_xo_gpll0_gpll4_map[] = {
51 [P_XO] = 0,
52 [P_GPLL0] = 1,
53 [P_GPLL4] = 5,
54};
55
56static const char *gcc_xo_gpll0_gpll4[] = {
57 "xo",
58 "gpll0_vote",
59 "gpll4_vote",
60};
61
48#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) } 62#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
49 63
50static struct clk_pll gpll0 = { 64static struct clk_pll gpll0 = {
@@ -137,6 +151,33 @@ static struct clk_regmap gpll1_vote = {
137 }, 151 },
138}; 152};
139 153
154static struct clk_pll gpll4 = {
155 .l_reg = 0x1dc4,
156 .m_reg = 0x1dc8,
157 .n_reg = 0x1dcc,
158 .config_reg = 0x1dd4,
159 .mode_reg = 0x1dc0,
160 .status_reg = 0x1ddc,
161 .status_bit = 17,
162 .clkr.hw.init = &(struct clk_init_data){
163 .name = "gpll4",
164 .parent_names = (const char *[]){ "xo" },
165 .num_parents = 1,
166 .ops = &clk_pll_ops,
167 },
168};
169
170static struct clk_regmap gpll4_vote = {
171 .enable_reg = 0x1480,
172 .enable_mask = BIT(4),
173 .hw.init = &(struct clk_init_data){
174 .name = "gpll4_vote",
175 .parent_names = (const char *[]){ "gpll4" },
176 .num_parents = 1,
177 .ops = &clk_pll_vote_ops,
178 },
179};
180
140static const struct freq_tbl ftbl_gcc_usb30_master_clk[] = { 181static const struct freq_tbl ftbl_gcc_usb30_master_clk[] = {
141 F(125000000, P_GPLL0, 1, 5, 24), 182 F(125000000, P_GPLL0, 1, 5, 24),
142 { } 183 { }
@@ -811,18 +852,33 @@ static const struct freq_tbl ftbl_gcc_sdcc1_4_apps_clk[] = {
811 { } 852 { }
812}; 853};
813 854
855static const struct freq_tbl ftbl_gcc_sdcc1_apps_clk_pro[] = {
856 F(144000, P_XO, 16, 3, 25),
857 F(400000, P_XO, 12, 1, 4),
858 F(20000000, P_GPLL0, 15, 1, 2),
859 F(25000000, P_GPLL0, 12, 1, 2),
860 F(50000000, P_GPLL0, 12, 0, 0),
861 F(100000000, P_GPLL0, 6, 0, 0),
862 F(192000000, P_GPLL4, 4, 0, 0),
863 F(200000000, P_GPLL0, 3, 0, 0),
864 F(384000000, P_GPLL4, 2, 0, 0),
865 { }
866};
867
868static struct clk_init_data sdcc1_apps_clk_src_init = {
869 .name = "sdcc1_apps_clk_src",
870 .parent_names = gcc_xo_gpll0,
871 .num_parents = 2,
872 .ops = &clk_rcg2_ops,
873};
874
814static struct clk_rcg2 sdcc1_apps_clk_src = { 875static struct clk_rcg2 sdcc1_apps_clk_src = {
815 .cmd_rcgr = 0x04d0, 876 .cmd_rcgr = 0x04d0,
816 .mnd_width = 8, 877 .mnd_width = 8,
817 .hid_width = 5, 878 .hid_width = 5,
818 .parent_map = gcc_xo_gpll0_map, 879 .parent_map = gcc_xo_gpll0_map,
819 .freq_tbl = ftbl_gcc_sdcc1_4_apps_clk, 880 .freq_tbl = ftbl_gcc_sdcc1_4_apps_clk,
820 .clkr.hw.init = &(struct clk_init_data){ 881 .clkr.hw.init = &sdcc1_apps_clk_src_init,
821 .name = "sdcc1_apps_clk_src",
822 .parent_names = gcc_xo_gpll0,
823 .num_parents = 2,
824 .ops = &clk_rcg2_ops,
825 },
826}; 882};
827 883
828static struct clk_rcg2 sdcc2_apps_clk_src = { 884static struct clk_rcg2 sdcc2_apps_clk_src = {
@@ -1340,7 +1396,7 @@ static struct clk_branch gcc_blsp1_uart6_apps_clk = {
1340}; 1396};
1341 1397
1342static struct clk_branch gcc_blsp2_ahb_clk = { 1398static struct clk_branch gcc_blsp2_ahb_clk = {
1343 .halt_reg = 0x05c4, 1399 .halt_reg = 0x0944,
1344 .halt_check = BRANCH_HALT_VOTED, 1400 .halt_check = BRANCH_HALT_VOTED,
1345 .clkr = { 1401 .clkr = {
1346 .enable_reg = 0x1484, 1402 .enable_reg = 0x1484,
@@ -1994,6 +2050,38 @@ static struct clk_branch gcc_sdcc1_apps_clk = {
1994 }, 2050 },
1995}; 2051};
1996 2052
2053static struct clk_branch gcc_sdcc1_cdccal_ff_clk = {
2054 .halt_reg = 0x04e8,
2055 .clkr = {
2056 .enable_reg = 0x04e8,
2057 .enable_mask = BIT(0),
2058 .hw.init = &(struct clk_init_data){
2059 .name = "gcc_sdcc1_cdccal_ff_clk",
2060 .parent_names = (const char *[]){
2061 "xo"
2062 },
2063 .num_parents = 1,
2064 .ops = &clk_branch2_ops,
2065 },
2066 },
2067};
2068
2069static struct clk_branch gcc_sdcc1_cdccal_sleep_clk = {
2070 .halt_reg = 0x04e4,
2071 .clkr = {
2072 .enable_reg = 0x04e4,
2073 .enable_mask = BIT(0),
2074 .hw.init = &(struct clk_init_data){
2075 .name = "gcc_sdcc1_cdccal_sleep_clk",
2076 .parent_names = (const char *[]){
2077 "sleep_clk_src"
2078 },
2079 .num_parents = 1,
2080 .ops = &clk_branch2_ops,
2081 },
2082 },
2083};
2084
1997static struct clk_branch gcc_sdcc2_ahb_clk = { 2085static struct clk_branch gcc_sdcc2_ahb_clk = {
1998 .halt_reg = 0x0508, 2086 .halt_reg = 0x0508,
1999 .clkr = { 2087 .clkr = {
@@ -2483,6 +2571,10 @@ static struct clk_regmap *gcc_msm8974_clocks[] = {
2483 [GCC_USB_HSIC_IO_CAL_SLEEP_CLK] = &gcc_usb_hsic_io_cal_sleep_clk.clkr, 2571 [GCC_USB_HSIC_IO_CAL_SLEEP_CLK] = &gcc_usb_hsic_io_cal_sleep_clk.clkr,
2484 [GCC_USB_HSIC_SYSTEM_CLK] = &gcc_usb_hsic_system_clk.clkr, 2572 [GCC_USB_HSIC_SYSTEM_CLK] = &gcc_usb_hsic_system_clk.clkr,
2485 [GCC_MMSS_GPLL0_CLK_SRC] = &gcc_mmss_gpll0_clk_src, 2573 [GCC_MMSS_GPLL0_CLK_SRC] = &gcc_mmss_gpll0_clk_src,
2574 [GPLL4] = NULL,
2575 [GPLL4_VOTE] = NULL,
2576 [GCC_SDCC1_CDCCAL_SLEEP_CLK] = NULL,
2577 [GCC_SDCC1_CDCCAL_FF_CLK] = NULL,
2486}; 2578};
2487 2579
2488static const struct qcom_reset_map gcc_msm8974_resets[] = { 2580static const struct qcom_reset_map gcc_msm8974_resets[] = {
@@ -2574,51 +2666,51 @@ static const struct regmap_config gcc_msm8974_regmap_config = {
2574 .fast_io = true, 2666 .fast_io = true,
2575}; 2667};
2576 2668
2669static const struct qcom_cc_desc gcc_msm8974_desc = {
2670 .config = &gcc_msm8974_regmap_config,
2671 .clks = gcc_msm8974_clocks,
2672 .num_clks = ARRAY_SIZE(gcc_msm8974_clocks),
2673 .resets = gcc_msm8974_resets,
2674 .num_resets = ARRAY_SIZE(gcc_msm8974_resets),
2675};
2676
2577static const struct of_device_id gcc_msm8974_match_table[] = { 2677static const struct of_device_id gcc_msm8974_match_table[] = {
2578 { .compatible = "qcom,gcc-msm8974" }, 2678 { .compatible = "qcom,gcc-msm8974" },
2679 { .compatible = "qcom,gcc-msm8974pro" , .data = (void *)1UL },
2680 { .compatible = "qcom,gcc-msm8974pro-ac", .data = (void *)1UL },
2579 { } 2681 { }
2580}; 2682};
2581MODULE_DEVICE_TABLE(of, gcc_msm8974_match_table); 2683MODULE_DEVICE_TABLE(of, gcc_msm8974_match_table);
2582 2684
2583struct qcom_cc { 2685static void msm8974_pro_clock_override(void)
2584 struct qcom_reset_controller reset; 2686{
2585 struct clk_onecell_data data; 2687 sdcc1_apps_clk_src_init.parent_names = gcc_xo_gpll0_gpll4;
2586 struct clk *clks[]; 2688 sdcc1_apps_clk_src_init.num_parents = 3;
2587}; 2689 sdcc1_apps_clk_src.freq_tbl = ftbl_gcc_sdcc1_apps_clk_pro;
2690 sdcc1_apps_clk_src.parent_map = gcc_xo_gpll0_gpll4_map;
2691
2692 gcc_msm8974_clocks[GPLL4] = &gpll4.clkr;
2693 gcc_msm8974_clocks[GPLL4_VOTE] = &gpll4_vote;
2694 gcc_msm8974_clocks[GCC_SDCC1_CDCCAL_SLEEP_CLK] =
2695 &gcc_sdcc1_cdccal_sleep_clk.clkr;
2696 gcc_msm8974_clocks[GCC_SDCC1_CDCCAL_FF_CLK] =
2697 &gcc_sdcc1_cdccal_ff_clk.clkr;
2698}
2588 2699
2589static int gcc_msm8974_probe(struct platform_device *pdev) 2700static int gcc_msm8974_probe(struct platform_device *pdev)
2590{ 2701{
2591 void __iomem *base;
2592 struct resource *res;
2593 int i, ret;
2594 struct device *dev = &pdev->dev;
2595 struct clk *clk; 2702 struct clk *clk;
2596 struct clk_onecell_data *data; 2703 struct device *dev = &pdev->dev;
2597 struct clk **clks; 2704 bool pro;
2598 struct regmap *regmap; 2705 const struct of_device_id *id;
2599 size_t num_clks; 2706
2600 struct qcom_reset_controller *reset; 2707 id = of_match_device(gcc_msm8974_match_table, dev);
2601 struct qcom_cc *cc; 2708 if (!id)
2602 2709 return -ENODEV;
2603 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 2710 pro = !!(id->data);
2604 base = devm_ioremap_resource(dev, res); 2711
2605 if (IS_ERR(base)) 2712 if (pro)
2606 return PTR_ERR(base); 2713 msm8974_pro_clock_override();
2607
2608 regmap = devm_regmap_init_mmio(dev, base, &gcc_msm8974_regmap_config);
2609 if (IS_ERR(regmap))
2610 return PTR_ERR(regmap);
2611
2612 num_clks = ARRAY_SIZE(gcc_msm8974_clocks);
2613 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
2614 GFP_KERNEL);
2615 if (!cc)
2616 return -ENOMEM;
2617
2618 clks = cc->clks;
2619 data = &cc->data;
2620 data->clks = clks;
2621 data->clk_num = num_clks;
2622 2714
2623 /* Temporary until RPM clocks supported */ 2715 /* Temporary until RPM clocks supported */
2624 clk = clk_register_fixed_rate(dev, "xo", NULL, CLK_IS_ROOT, 19200000); 2716 clk = clk_register_fixed_rate(dev, "xo", NULL, CLK_IS_ROOT, 19200000);
@@ -2631,39 +2723,12 @@ static int gcc_msm8974_probe(struct platform_device *pdev)
2631 if (IS_ERR(clk)) 2723 if (IS_ERR(clk))
2632 return PTR_ERR(clk); 2724 return PTR_ERR(clk);
2633 2725
2634 for (i = 0; i < num_clks; i++) { 2726 return qcom_cc_probe(pdev, &gcc_msm8974_desc);
2635 if (!gcc_msm8974_clocks[i])
2636 continue;
2637 clk = devm_clk_register_regmap(dev, gcc_msm8974_clocks[i]);
2638 if (IS_ERR(clk))
2639 return PTR_ERR(clk);
2640 clks[i] = clk;
2641 }
2642
2643 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
2644 if (ret)
2645 return ret;
2646
2647 reset = &cc->reset;
2648 reset->rcdev.of_node = dev->of_node;
2649 reset->rcdev.ops = &qcom_reset_ops,
2650 reset->rcdev.owner = THIS_MODULE,
2651 reset->rcdev.nr_resets = ARRAY_SIZE(gcc_msm8974_resets),
2652 reset->regmap = regmap;
2653 reset->reset_map = gcc_msm8974_resets,
2654 platform_set_drvdata(pdev, &reset->rcdev);
2655
2656 ret = reset_controller_register(&reset->rcdev);
2657 if (ret)
2658 of_clk_del_provider(dev->of_node);
2659
2660 return ret;
2661} 2727}
2662 2728
2663static int gcc_msm8974_remove(struct platform_device *pdev) 2729static int gcc_msm8974_remove(struct platform_device *pdev)
2664{ 2730{
2665 of_clk_del_provider(pdev->dev.of_node); 2731 qcom_cc_remove(pdev);
2666 reset_controller_unregister(platform_get_drvdata(pdev));
2667 return 0; 2732 return 0;
2668} 2733}
2669 2734
diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c
index f9b59c7e48e9..12f3c0b64fcd 100644
--- a/drivers/clk/qcom/mmcc-msm8960.c
+++ b/drivers/clk/qcom/mmcc-msm8960.c
@@ -26,6 +26,7 @@
26#include <dt-bindings/clock/qcom,mmcc-msm8960.h> 26#include <dt-bindings/clock/qcom,mmcc-msm8960.h>
27#include <dt-bindings/reset/qcom,mmcc-msm8960.h> 27#include <dt-bindings/reset/qcom,mmcc-msm8960.h>
28 28
29#include "common.h"
29#include "clk-regmap.h" 30#include "clk-regmap.h"
30#include "clk-pll.h" 31#include "clk-pll.h"
31#include "clk-rcg.h" 32#include "clk-rcg.h"
@@ -2222,85 +2223,28 @@ static const struct regmap_config mmcc_msm8960_regmap_config = {
2222 .fast_io = true, 2223 .fast_io = true,
2223}; 2224};
2224 2225
2226static const struct qcom_cc_desc mmcc_msm8960_desc = {
2227 .config = &mmcc_msm8960_regmap_config,
2228 .clks = mmcc_msm8960_clks,
2229 .num_clks = ARRAY_SIZE(mmcc_msm8960_clks),
2230 .resets = mmcc_msm8960_resets,
2231 .num_resets = ARRAY_SIZE(mmcc_msm8960_resets),
2232};
2233
2225static const struct of_device_id mmcc_msm8960_match_table[] = { 2234static const struct of_device_id mmcc_msm8960_match_table[] = {
2226 { .compatible = "qcom,mmcc-msm8960" }, 2235 { .compatible = "qcom,mmcc-msm8960" },
2227 { } 2236 { }
2228}; 2237};
2229MODULE_DEVICE_TABLE(of, mmcc_msm8960_match_table); 2238MODULE_DEVICE_TABLE(of, mmcc_msm8960_match_table);
2230 2239
2231struct qcom_cc {
2232 struct qcom_reset_controller reset;
2233 struct clk_onecell_data data;
2234 struct clk *clks[];
2235};
2236
2237static int mmcc_msm8960_probe(struct platform_device *pdev) 2240static int mmcc_msm8960_probe(struct platform_device *pdev)
2238{ 2241{
2239 void __iomem *base; 2242 return qcom_cc_probe(pdev, &mmcc_msm8960_desc);
2240 struct resource *res;
2241 int i, ret;
2242 struct device *dev = &pdev->dev;
2243 struct clk *clk;
2244 struct clk_onecell_data *data;
2245 struct clk **clks;
2246 struct regmap *regmap;
2247 size_t num_clks;
2248 struct qcom_reset_controller *reset;
2249 struct qcom_cc *cc;
2250
2251 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2252 base = devm_ioremap_resource(dev, res);
2253 if (IS_ERR(base))
2254 return PTR_ERR(base);
2255
2256 regmap = devm_regmap_init_mmio(dev, base, &mmcc_msm8960_regmap_config);
2257 if (IS_ERR(regmap))
2258 return PTR_ERR(regmap);
2259
2260 num_clks = ARRAY_SIZE(mmcc_msm8960_clks);
2261 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
2262 GFP_KERNEL);
2263 if (!cc)
2264 return -ENOMEM;
2265
2266 clks = cc->clks;
2267 data = &cc->data;
2268 data->clks = clks;
2269 data->clk_num = num_clks;
2270
2271 for (i = 0; i < num_clks; i++) {
2272 if (!mmcc_msm8960_clks[i])
2273 continue;
2274 clk = devm_clk_register_regmap(dev, mmcc_msm8960_clks[i]);
2275 if (IS_ERR(clk))
2276 return PTR_ERR(clk);
2277 clks[i] = clk;
2278 }
2279
2280 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data);
2281 if (ret)
2282 return ret;
2283
2284 reset = &cc->reset;
2285 reset->rcdev.of_node = dev->of_node;
2286 reset->rcdev.ops = &qcom_reset_ops,
2287 reset->rcdev.owner = THIS_MODULE,
2288 reset->rcdev.nr_resets = ARRAY_SIZE(mmcc_msm8960_resets),
2289 reset->regmap = regmap;
2290 reset->reset_map = mmcc_msm8960_resets,
2291 platform_set_drvdata(pdev, &reset->rcdev);
2292
2293 ret = reset_controller_register(&reset->rcdev);
2294 if (ret)
2295 of_clk_del_provider(dev->of_node);
2296
2297 return ret;
2298} 2243}
2299 2244
2300static int mmcc_msm8960_remove(struct platform_device *pdev) 2245static int mmcc_msm8960_remove(struct platform_device *pdev)
2301{ 2246{
2302 of_clk_del_provider(pdev->dev.of_node); 2247 qcom_cc_remove(pdev);
2303 reset_controller_unregister(platform_get_drvdata(pdev));
2304 return 0; 2248 return 0;
2305} 2249}
2306 2250
diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c
index c95774514b81..c65b90515872 100644
--- a/drivers/clk/qcom/mmcc-msm8974.c
+++ b/drivers/clk/qcom/mmcc-msm8974.c
@@ -25,6 +25,7 @@
25#include <dt-bindings/clock/qcom,mmcc-msm8974.h> 25#include <dt-bindings/clock/qcom,mmcc-msm8974.h>
26#include <dt-bindings/reset/qcom,mmcc-msm8974.h> 26#include <dt-bindings/reset/qcom,mmcc-msm8974.h>
27 27
28#include "common.h"
28#include "clk-regmap.h" 29#include "clk-regmap.h"
29#include "clk-pll.h" 30#include "clk-pll.h"
30#include "clk-rcg.h" 31#include "clk-rcg.h"
@@ -40,9 +41,11 @@
40#define P_EDPVCO 3 41#define P_EDPVCO 3
41#define P_GPLL1 4 42#define P_GPLL1 4
42#define P_DSI0PLL 4 43#define P_DSI0PLL 4
44#define P_DSI0PLL_BYTE 4
43#define P_MMPLL2 4 45#define P_MMPLL2 4
44#define P_MMPLL3 4 46#define P_MMPLL3 4
45#define P_DSI1PLL 5 47#define P_DSI1PLL 5
48#define P_DSI1PLL_BYTE 5
46 49
47static const u8 mmcc_xo_mmpll0_mmpll1_gpll0_map[] = { 50static const u8 mmcc_xo_mmpll0_mmpll1_gpll0_map[] = {
48 [P_XO] = 0, 51 [P_XO] = 0,
@@ -160,6 +163,24 @@ static const char *mmcc_xo_dsi_hdmi_edp_gpll0[] = {
160 "dsi1pll", 163 "dsi1pll",
161}; 164};
162 165
166static const u8 mmcc_xo_dsibyte_hdmi_edp_gpll0_map[] = {
167 [P_XO] = 0,
168 [P_EDPLINK] = 4,
169 [P_HDMIPLL] = 3,
170 [P_GPLL0] = 5,
171 [P_DSI0PLL_BYTE] = 1,
172 [P_DSI1PLL_BYTE] = 2,
173};
174
175static const char *mmcc_xo_dsibyte_hdmi_edp_gpll0[] = {
176 "xo",
177 "edp_link_clk",
178 "hdmipll",
179 "gpll0_vote",
180 "dsi0pllbyte",
181 "dsi1pllbyte",
182};
183
163#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) } 184#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
164 185
165static struct clk_pll mmpll0 = { 186static struct clk_pll mmpll0 = {
@@ -169,6 +190,7 @@ static struct clk_pll mmpll0 = {
169 .config_reg = 0x0014, 190 .config_reg = 0x0014,
170 .mode_reg = 0x0000, 191 .mode_reg = 0x0000,
171 .status_reg = 0x001c, 192 .status_reg = 0x001c,
193 .status_bit = 17,
172 .clkr.hw.init = &(struct clk_init_data){ 194 .clkr.hw.init = &(struct clk_init_data){
173 .name = "mmpll0", 195 .name = "mmpll0",
174 .parent_names = (const char *[]){ "xo" }, 196 .parent_names = (const char *[]){ "xo" },
@@ -192,9 +214,10 @@ static struct clk_pll mmpll1 = {
192 .l_reg = 0x0044, 214 .l_reg = 0x0044,
193 .m_reg = 0x0048, 215 .m_reg = 0x0048,
194 .n_reg = 0x004c, 216 .n_reg = 0x004c,
195 .config_reg = 0x0054, 217 .config_reg = 0x0050,
196 .mode_reg = 0x0040, 218 .mode_reg = 0x0040,
197 .status_reg = 0x005c, 219 .status_reg = 0x005c,
220 .status_bit = 17,
198 .clkr.hw.init = &(struct clk_init_data){ 221 .clkr.hw.init = &(struct clk_init_data){
199 .name = "mmpll1", 222 .name = "mmpll1",
200 .parent_names = (const char *[]){ "xo" }, 223 .parent_names = (const char *[]){ "xo" },
@@ -218,7 +241,7 @@ static struct clk_pll mmpll2 = {
218 .l_reg = 0x4104, 241 .l_reg = 0x4104,
219 .m_reg = 0x4108, 242 .m_reg = 0x4108,
220 .n_reg = 0x410c, 243 .n_reg = 0x410c,
221 .config_reg = 0x4114, 244 .config_reg = 0x4110,
222 .mode_reg = 0x4100, 245 .mode_reg = 0x4100,
223 .status_reg = 0x411c, 246 .status_reg = 0x411c,
224 .clkr.hw.init = &(struct clk_init_data){ 247 .clkr.hw.init = &(struct clk_init_data){
@@ -233,9 +256,10 @@ static struct clk_pll mmpll3 = {
233 .l_reg = 0x0084, 256 .l_reg = 0x0084,
234 .m_reg = 0x0088, 257 .m_reg = 0x0088,
235 .n_reg = 0x008c, 258 .n_reg = 0x008c,
236 .config_reg = 0x0094, 259 .config_reg = 0x0090,
237 .mode_reg = 0x0080, 260 .mode_reg = 0x0080,
238 .status_reg = 0x009c, 261 .status_reg = 0x009c,
262 .status_bit = 17,
239 .clkr.hw.init = &(struct clk_init_data){ 263 .clkr.hw.init = &(struct clk_init_data){
240 .name = "mmpll3", 264 .name = "mmpll3",
241 .parent_names = (const char *[]){ "xo" }, 265 .parent_names = (const char *[]){ "xo" },
@@ -496,15 +520,8 @@ static struct clk_rcg2 jpeg2_clk_src = {
496 }, 520 },
497}; 521};
498 522
499static struct freq_tbl ftbl_mdss_pclk0_clk[] = { 523static struct freq_tbl pixel_freq_tbl[] = {
500 F(125000000, P_DSI0PLL, 2, 0, 0), 524 { .src = P_DSI0PLL },
501 F(250000000, P_DSI0PLL, 1, 0, 0),
502 { }
503};
504
505static struct freq_tbl ftbl_mdss_pclk1_clk[] = {
506 F(125000000, P_DSI1PLL, 2, 0, 0),
507 F(250000000, P_DSI1PLL, 1, 0, 0),
508 { } 525 { }
509}; 526};
510 527
@@ -513,12 +530,13 @@ static struct clk_rcg2 pclk0_clk_src = {
513 .mnd_width = 8, 530 .mnd_width = 8,
514 .hid_width = 5, 531 .hid_width = 5,
515 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 532 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map,
516 .freq_tbl = ftbl_mdss_pclk0_clk, 533 .freq_tbl = pixel_freq_tbl,
517 .clkr.hw.init = &(struct clk_init_data){ 534 .clkr.hw.init = &(struct clk_init_data){
518 .name = "pclk0_clk_src", 535 .name = "pclk0_clk_src",
519 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 536 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0,
520 .num_parents = 6, 537 .num_parents = 6,
521 .ops = &clk_rcg2_ops, 538 .ops = &clk_pixel_ops,
539 .flags = CLK_SET_RATE_PARENT,
522 }, 540 },
523}; 541};
524 542
@@ -527,12 +545,13 @@ static struct clk_rcg2 pclk1_clk_src = {
527 .mnd_width = 8, 545 .mnd_width = 8,
528 .hid_width = 5, 546 .hid_width = 5,
529 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 547 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map,
530 .freq_tbl = ftbl_mdss_pclk1_clk, 548 .freq_tbl = pixel_freq_tbl,
531 .clkr.hw.init = &(struct clk_init_data){ 549 .clkr.hw.init = &(struct clk_init_data){
532 .name = "pclk1_clk_src", 550 .name = "pclk1_clk_src",
533 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 551 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0,
534 .num_parents = 6, 552 .num_parents = 6,
535 .ops = &clk_rcg2_ops, 553 .ops = &clk_pixel_ops,
554 .flags = CLK_SET_RATE_PARENT,
536 }, 555 },
537}; 556};
538 557
@@ -750,41 +769,36 @@ static struct clk_rcg2 cpp_clk_src = {
750 }, 769 },
751}; 770};
752 771
753static struct freq_tbl ftbl_mdss_byte0_clk[] = { 772static struct freq_tbl byte_freq_tbl[] = {
754 F(93750000, P_DSI0PLL, 8, 0, 0), 773 { .src = P_DSI0PLL_BYTE },
755 F(187500000, P_DSI0PLL, 4, 0, 0),
756 { }
757};
758
759static struct freq_tbl ftbl_mdss_byte1_clk[] = {
760 F(93750000, P_DSI1PLL, 8, 0, 0),
761 F(187500000, P_DSI1PLL, 4, 0, 0),
762 { } 774 { }
763}; 775};
764 776
765static struct clk_rcg2 byte0_clk_src = { 777static struct clk_rcg2 byte0_clk_src = {
766 .cmd_rcgr = 0x2120, 778 .cmd_rcgr = 0x2120,
767 .hid_width = 5, 779 .hid_width = 5,
768 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 780 .parent_map = mmcc_xo_dsibyte_hdmi_edp_gpll0_map,
769 .freq_tbl = ftbl_mdss_byte0_clk, 781 .freq_tbl = byte_freq_tbl,
770 .clkr.hw.init = &(struct clk_init_data){ 782 .clkr.hw.init = &(struct clk_init_data){
771 .name = "byte0_clk_src", 783 .name = "byte0_clk_src",
772 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 784 .parent_names = mmcc_xo_dsibyte_hdmi_edp_gpll0,
773 .num_parents = 6, 785 .num_parents = 6,
774 .ops = &clk_rcg2_ops, 786 .ops = &clk_byte_ops,
787 .flags = CLK_SET_RATE_PARENT,
775 }, 788 },
776}; 789};
777 790
778static struct clk_rcg2 byte1_clk_src = { 791static struct clk_rcg2 byte1_clk_src = {
779 .cmd_rcgr = 0x2140, 792 .cmd_rcgr = 0x2140,
780 .hid_width = 5, 793 .hid_width = 5,
781 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 794 .parent_map = mmcc_xo_dsibyte_hdmi_edp_gpll0_map,
782 .freq_tbl = ftbl_mdss_byte1_clk, 795 .freq_tbl = byte_freq_tbl,
783 .clkr.hw.init = &(struct clk_init_data){ 796 .clkr.hw.init = &(struct clk_init_data){
784 .name = "byte1_clk_src", 797 .name = "byte1_clk_src",
785 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 798 .parent_names = mmcc_xo_dsibyte_hdmi_edp_gpll0,
786 .num_parents = 6, 799 .num_parents = 6,
787 .ops = &clk_rcg2_ops, 800 .ops = &clk_byte_ops,
801 .flags = CLK_SET_RATE_PARENT,
788 }, 802 },
789}; 803};
790 804
@@ -822,12 +836,12 @@ static struct clk_rcg2 edplink_clk_src = {
822 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 836 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0,
823 .num_parents = 6, 837 .num_parents = 6,
824 .ops = &clk_rcg2_ops, 838 .ops = &clk_rcg2_ops,
839 .flags = CLK_SET_RATE_PARENT,
825 }, 840 },
826}; 841};
827 842
828static struct freq_tbl ftbl_mdss_edppixel_clk[] = { 843static struct freq_tbl edp_pixel_freq_tbl[] = {
829 F(175000000, P_EDPVCO, 2, 0, 0), 844 { .src = P_EDPVCO },
830 F(350000000, P_EDPVCO, 11, 0, 0),
831 { } 845 { }
832}; 846};
833 847
@@ -836,12 +850,12 @@ static struct clk_rcg2 edppixel_clk_src = {
836 .mnd_width = 8, 850 .mnd_width = 8,
837 .hid_width = 5, 851 .hid_width = 5,
838 .parent_map = mmcc_xo_dsi_hdmi_edp_map, 852 .parent_map = mmcc_xo_dsi_hdmi_edp_map,
839 .freq_tbl = ftbl_mdss_edppixel_clk, 853 .freq_tbl = edp_pixel_freq_tbl,
840 .clkr.hw.init = &(struct clk_init_data){ 854 .clkr.hw.init = &(struct clk_init_data){
841 .name = "edppixel_clk_src", 855 .name = "edppixel_clk_src",
842 .parent_names = mmcc_xo_dsi_hdmi_edp, 856 .parent_names = mmcc_xo_dsi_hdmi_edp,
843 .num_parents = 6, 857 .num_parents = 6,
844 .ops = &clk_rcg2_ops, 858 .ops = &clk_edp_pixel_ops,
845 }, 859 },
846}; 860};
847 861
@@ -853,11 +867,11 @@ static struct freq_tbl ftbl_mdss_esc0_1_clk[] = {
853static struct clk_rcg2 esc0_clk_src = { 867static struct clk_rcg2 esc0_clk_src = {
854 .cmd_rcgr = 0x2160, 868 .cmd_rcgr = 0x2160,
855 .hid_width = 5, 869 .hid_width = 5,
856 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 870 .parent_map = mmcc_xo_dsibyte_hdmi_edp_gpll0_map,
857 .freq_tbl = ftbl_mdss_esc0_1_clk, 871 .freq_tbl = ftbl_mdss_esc0_1_clk,
858 .clkr.hw.init = &(struct clk_init_data){ 872 .clkr.hw.init = &(struct clk_init_data){
859 .name = "esc0_clk_src", 873 .name = "esc0_clk_src",
860 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 874 .parent_names = mmcc_xo_dsibyte_hdmi_edp_gpll0,
861 .num_parents = 6, 875 .num_parents = 6,
862 .ops = &clk_rcg2_ops, 876 .ops = &clk_rcg2_ops,
863 }, 877 },
@@ -866,26 +880,18 @@ static struct clk_rcg2 esc0_clk_src = {
866static struct clk_rcg2 esc1_clk_src = { 880static struct clk_rcg2 esc1_clk_src = {
867 .cmd_rcgr = 0x2180, 881 .cmd_rcgr = 0x2180,
868 .hid_width = 5, 882 .hid_width = 5,
869 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 883 .parent_map = mmcc_xo_dsibyte_hdmi_edp_gpll0_map,
870 .freq_tbl = ftbl_mdss_esc0_1_clk, 884 .freq_tbl = ftbl_mdss_esc0_1_clk,
871 .clkr.hw.init = &(struct clk_init_data){ 885 .clkr.hw.init = &(struct clk_init_data){
872 .name = "esc1_clk_src", 886 .name = "esc1_clk_src",
873 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 887 .parent_names = mmcc_xo_dsibyte_hdmi_edp_gpll0,
874 .num_parents = 6, 888 .num_parents = 6,
875 .ops = &clk_rcg2_ops, 889 .ops = &clk_rcg2_ops,
876 }, 890 },
877}; 891};
878 892
879static struct freq_tbl ftbl_mdss_extpclk_clk[] = { 893static struct freq_tbl extpclk_freq_tbl[] = {
880 F(25200000, P_HDMIPLL, 1, 0, 0), 894 { .src = P_HDMIPLL },
881 F(27000000, P_HDMIPLL, 1, 0, 0),
882 F(27030000, P_HDMIPLL, 1, 0, 0),
883 F(65000000, P_HDMIPLL, 1, 0, 0),
884 F(74250000, P_HDMIPLL, 1, 0, 0),
885 F(108000000, P_HDMIPLL, 1, 0, 0),
886 F(148500000, P_HDMIPLL, 1, 0, 0),
887 F(268500000, P_HDMIPLL, 1, 0, 0),
888 F(297000000, P_HDMIPLL, 1, 0, 0),
889 { } 895 { }
890}; 896};
891 897
@@ -893,12 +899,13 @@ static struct clk_rcg2 extpclk_clk_src = {
893 .cmd_rcgr = 0x2060, 899 .cmd_rcgr = 0x2060,
894 .hid_width = 5, 900 .hid_width = 5,
895 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map, 901 .parent_map = mmcc_xo_dsi_hdmi_edp_gpll0_map,
896 .freq_tbl = ftbl_mdss_extpclk_clk, 902 .freq_tbl = extpclk_freq_tbl,
897 .clkr.hw.init = &(struct clk_init_data){ 903 .clkr.hw.init = &(struct clk_init_data){
898 .name = "extpclk_clk_src", 904 .name = "extpclk_clk_src",
899 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0, 905 .parent_names = mmcc_xo_dsi_hdmi_edp_gpll0,
900 .num_parents = 6, 906 .num_parents = 6,
901 .ops = &clk_rcg2_ops, 907 .ops = &clk_byte_ops,
908 .flags = CLK_SET_RATE_PARENT,
902 }, 909 },
903}; 910};
904 911
@@ -2318,7 +2325,7 @@ static const struct pll_config mmpll1_config = {
2318 .vco_val = 0x0, 2325 .vco_val = 0x0,
2319 .vco_mask = 0x3 << 20, 2326 .vco_mask = 0x3 << 20,
2320 .pre_div_val = 0x0, 2327 .pre_div_val = 0x0,
2321 .pre_div_mask = 0x3 << 12, 2328 .pre_div_mask = 0x7 << 12,
2322 .post_div_val = 0x0, 2329 .post_div_val = 0x0,
2323 .post_div_mask = 0x3 << 8, 2330 .post_div_mask = 0x3 << 8,
2324 .mn_ena_mask = BIT(24), 2331 .mn_ena_mask = BIT(24),
@@ -2332,7 +2339,7 @@ static struct pll_config mmpll3_config = {
2332 .vco_val = 0x0, 2339 .vco_val = 0x0,
2333 .vco_mask = 0x3 << 20, 2340 .vco_mask = 0x3 << 20,
2334 .pre_div_val = 0x0, 2341 .pre_div_val = 0x0,
2335 .pre_div_mask = 0x3 << 12, 2342 .pre_div_mask = 0x7 << 12,
2336 .post_div_val = 0x0, 2343 .post_div_val = 0x0,
2337 .post_div_mask = 0x3 << 8, 2344 .post_div_mask = 0x3 << 8,
2338 .mn_ena_mask = BIT(24), 2345 .mn_ena_mask = BIT(24),
@@ -2524,88 +2531,39 @@ static const struct regmap_config mmcc_msm8974_regmap_config = {
2524 .fast_io = true, 2531 .fast_io = true,
2525}; 2532};
2526 2533
2534static const struct qcom_cc_desc mmcc_msm8974_desc = {
2535 .config = &mmcc_msm8974_regmap_config,
2536 .clks = mmcc_msm8974_clocks,
2537 .num_clks = ARRAY_SIZE(mmcc_msm8974_clocks),
2538 .resets = mmcc_msm8974_resets,
2539 .num_resets = ARRAY_SIZE(mmcc_msm8974_resets),
2540};
2541
2527static const struct of_device_id mmcc_msm8974_match_table[] = { 2542static const struct of_device_id mmcc_msm8974_match_table[] = {
2528 { .compatible = "qcom,mmcc-msm8974" }, 2543 { .compatible = "qcom,mmcc-msm8974" },
2529 { } 2544 { }
2530}; 2545};
2531MODULE_DEVICE_TABLE(of, mmcc_msm8974_match_table); 2546MODULE_DEVICE_TABLE(of, mmcc_msm8974_match_table);
2532 2547
2533struct qcom_cc {
2534 struct qcom_reset_controller reset;
2535 struct clk_onecell_data data;
2536 struct clk *clks[];
2537};
2538
2539static int mmcc_msm8974_probe(struct platform_device *pdev) 2548static int mmcc_msm8974_probe(struct platform_device *pdev)
2540{ 2549{
2541 void __iomem *base; 2550 int ret;
2542 struct resource *res;
2543 int i, ret;
2544 struct device *dev = &pdev->dev;
2545 struct clk *clk;
2546 struct clk_onecell_data *data;
2547 struct clk **clks;
2548 struct regmap *regmap; 2551 struct regmap *regmap;
2549 size_t num_clks;
2550 struct qcom_reset_controller *reset;
2551 struct qcom_cc *cc;
2552
2553 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2554 base = devm_ioremap_resource(dev, res);
2555 if (IS_ERR(base))
2556 return PTR_ERR(base);
2557
2558 regmap = devm_regmap_init_mmio(dev, base, &mmcc_msm8974_regmap_config);
2559 if (IS_ERR(regmap))
2560 return PTR_ERR(regmap);
2561
2562 num_clks = ARRAY_SIZE(mmcc_msm8974_clocks);
2563 cc = devm_kzalloc(dev, sizeof(*cc) + sizeof(*clks) * num_clks,
2564 GFP_KERNEL);
2565 if (!cc)
2566 return -ENOMEM;
2567
2568 clks = cc->clks;
2569 data = &cc->data;
2570 data->clks = clks;
2571 data->clk_num = num_clks;
2572
2573 clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true);
2574 clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false);
2575
2576 for (i = 0; i < num_clks; i++) {
2577 if (!mmcc_msm8974_clocks[i])
2578 continue;
2579 clk = devm_clk_register_regmap(dev, mmcc_msm8974_clocks[i]);
2580 if (IS_ERR(clk))
2581 return PTR_ERR(clk);
2582 clks[i] = clk;
2583 }
2584 2552
2585 ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, data); 2553 ret = qcom_cc_probe(pdev, &mmcc_msm8974_desc);
2586 if (ret) 2554 if (ret)
2587 return ret; 2555 return ret;
2588 2556
2589 reset = &cc->reset; 2557 regmap = dev_get_regmap(&pdev->dev, NULL);
2590 reset->rcdev.of_node = dev->of_node; 2558 clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true);
2591 reset->rcdev.ops = &qcom_reset_ops, 2559 clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false);
2592 reset->rcdev.owner = THIS_MODULE,
2593 reset->rcdev.nr_resets = ARRAY_SIZE(mmcc_msm8974_resets),
2594 reset->regmap = regmap;
2595 reset->reset_map = mmcc_msm8974_resets,
2596 platform_set_drvdata(pdev, &reset->rcdev);
2597
2598 ret = reset_controller_register(&reset->rcdev);
2599 if (ret)
2600 of_clk_del_provider(dev->of_node);
2601 2560
2602 return ret; 2561 return 0;
2603} 2562}
2604 2563
2605static int mmcc_msm8974_remove(struct platform_device *pdev) 2564static int mmcc_msm8974_remove(struct platform_device *pdev)
2606{ 2565{
2607 of_clk_del_provider(pdev->dev.of_node); 2566 qcom_cc_remove(pdev);
2608 reset_controller_unregister(platform_get_drvdata(pdev));
2609 return 0; 2567 return 0;
2610} 2568}
2611 2569
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index c4df294bb7fb..4f150c9dd38c 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -324,7 +324,7 @@ static struct syscore_ops exynos4_clk_syscore_ops = {
324 .resume = exynos4_clk_resume, 324 .resume = exynos4_clk_resume,
325}; 325};
326 326
327static void exynos4_clk_sleep_init(void) 327static void __init exynos4_clk_sleep_init(void)
328{ 328{
329 exynos4_save_common = samsung_clk_alloc_reg_dump(exynos4_clk_regs, 329 exynos4_save_common = samsung_clk_alloc_reg_dump(exynos4_clk_regs,
330 ARRAY_SIZE(exynos4_clk_regs)); 330 ARRAY_SIZE(exynos4_clk_regs));
@@ -359,7 +359,7 @@ err_warn:
359 __func__); 359 __func__);
360} 360}
361#else 361#else
362static void exynos4_clk_sleep_init(void) {} 362static void __init exynos4_clk_sleep_init(void) {}
363#endif 363#endif
364 364
365/* list of all parent clock list */ 365/* list of all parent clock list */
diff --git a/drivers/clk/shmobile/Makefile b/drivers/clk/shmobile/Makefile
index 5404cb931ebf..e0029237827a 100644
--- a/drivers/clk/shmobile/Makefile
+++ b/drivers/clk/shmobile/Makefile
@@ -1,5 +1,7 @@
1obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o 1obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o
2obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o 2obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o
3obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o
4obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o
3obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o 5obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o
4obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o 6obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o
5obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += clk-div6.o 7obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += clk-div6.o
diff --git a/drivers/clk/shmobile/clk-mstp.c b/drivers/clk/shmobile/clk-mstp.c
index 1f6324e29a80..2d2fe773ac81 100644
--- a/drivers/clk/shmobile/clk-mstp.c
+++ b/drivers/clk/shmobile/clk-mstp.c
@@ -112,7 +112,7 @@ static int cpg_mstp_clock_is_enabled(struct clk_hw *hw)
112 else 112 else
113 value = clk_readl(group->smstpcr); 113 value = clk_readl(group->smstpcr);
114 114
115 return !!(value & BIT(clock->bit_index)); 115 return !(value & BIT(clock->bit_index));
116} 116}
117 117
118static const struct clk_ops cpg_mstp_clock_ops = { 118static const struct clk_ops cpg_mstp_clock_ops = {
diff --git a/drivers/clk/shmobile/clk-r8a7740.c b/drivers/clk/shmobile/clk-r8a7740.c
new file mode 100644
index 000000000000..1e2eaae21e01
--- /dev/null
+++ b/drivers/clk/shmobile/clk-r8a7740.c
@@ -0,0 +1,199 @@
1/*
2 * r8a7740 Core CPG Clocks
3 *
4 * Copyright (C) 2014 Ulrich Hecht
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 */
10
11#include <linux/clk-provider.h>
12#include <linux/clkdev.h>
13#include <linux/clk/shmobile.h>
14#include <linux/init.h>
15#include <linux/kernel.h>
16#include <linux/of.h>
17#include <linux/of_address.h>
18#include <linux/spinlock.h>
19
20struct r8a7740_cpg {
21 struct clk_onecell_data data;
22 spinlock_t lock;
23 void __iomem *reg;
24};
25
26#define CPG_FRQCRA 0x00
27#define CPG_FRQCRB 0x04
28#define CPG_PLLC2CR 0x2c
29#define CPG_USBCKCR 0x8c
30#define CPG_FRQCRC 0xe0
31
32#define CLK_ENABLE_ON_INIT BIT(0)
33
34struct div4_clk {
35 const char *name;
36 unsigned int reg;
37 unsigned int shift;
38 int flags;
39};
40
41static struct div4_clk div4_clks[] = {
42 { "i", CPG_FRQCRA, 20, CLK_ENABLE_ON_INIT },
43 { "zg", CPG_FRQCRA, 16, CLK_ENABLE_ON_INIT },
44 { "b", CPG_FRQCRA, 8, CLK_ENABLE_ON_INIT },
45 { "m1", CPG_FRQCRA, 4, CLK_ENABLE_ON_INIT },
46 { "hp", CPG_FRQCRB, 4, 0 },
47 { "hpp", CPG_FRQCRC, 20, 0 },
48 { "usbp", CPG_FRQCRC, 16, 0 },
49 { "s", CPG_FRQCRC, 12, 0 },
50 { "zb", CPG_FRQCRC, 8, 0 },
51 { "m3", CPG_FRQCRC, 4, 0 },
52 { "cp", CPG_FRQCRC, 0, 0 },
53 { NULL, 0, 0, 0 },
54};
55
56static const struct clk_div_table div4_div_table[] = {
57 { 0, 2 }, { 1, 3 }, { 2, 4 }, { 3, 6 }, { 4, 8 }, { 5, 12 },
58 { 6, 16 }, { 7, 18 }, { 8, 24 }, { 9, 32 }, { 10, 36 }, { 11, 48 },
59 { 13, 72 }, { 14, 96 }, { 0, 0 }
60};
61
62static u32 cpg_mode __initdata;
63
64static struct clk * __init
65r8a7740_cpg_register_clock(struct device_node *np, struct r8a7740_cpg *cpg,
66 const char *name)
67{
68 const struct clk_div_table *table = NULL;
69 const char *parent_name;
70 unsigned int shift, reg;
71 unsigned int mult = 1;
72 unsigned int div = 1;
73
74 if (!strcmp(name, "r")) {
75 switch (cpg_mode & (BIT(2) | BIT(1))) {
76 case BIT(1) | BIT(2):
77 /* extal1 */
78 parent_name = of_clk_get_parent_name(np, 0);
79 div = 2048;
80 break;
81 case BIT(2):
82 /* extal1 */
83 parent_name = of_clk_get_parent_name(np, 0);
84 div = 1024;
85 break;
86 default:
87 /* extalr */
88 parent_name = of_clk_get_parent_name(np, 2);
89 break;
90 }
91 } else if (!strcmp(name, "system")) {
92 parent_name = of_clk_get_parent_name(np, 0);
93 if (cpg_mode & BIT(1))
94 div = 2;
95 } else if (!strcmp(name, "pllc0")) {
96 /* PLLC0/1 are configurable multiplier clocks. Register them as
97 * fixed factor clocks for now as there's no generic multiplier
98 * clock implementation and we currently have no need to change
99 * the multiplier value.
100 */
101 u32 value = clk_readl(cpg->reg + CPG_FRQCRC);
102 parent_name = "system";
103 mult = ((value >> 24) & 0x7f) + 1;
104 } else if (!strcmp(name, "pllc1")) {
105 u32 value = clk_readl(cpg->reg + CPG_FRQCRA);
106 parent_name = "system";
107 mult = ((value >> 24) & 0x7f) + 1;
108 div = 2;
109 } else if (!strcmp(name, "pllc2")) {
110 u32 value = clk_readl(cpg->reg + CPG_PLLC2CR);
111 parent_name = "system";
112 mult = ((value >> 24) & 0x3f) + 1;
113 } else if (!strcmp(name, "usb24s")) {
114 u32 value = clk_readl(cpg->reg + CPG_USBCKCR);
115 if (value & BIT(7))
116 /* extal2 */
117 parent_name = of_clk_get_parent_name(np, 1);
118 else
119 parent_name = "system";
120 if (!(value & BIT(6)))
121 div = 2;
122 } else {
123 struct div4_clk *c;
124 for (c = div4_clks; c->name; c++) {
125 if (!strcmp(name, c->name)) {
126 parent_name = "pllc1";
127 table = div4_div_table;
128 reg = c->reg;
129 shift = c->shift;
130 break;
131 }
132 }
133 if (!c->name)
134 return ERR_PTR(-EINVAL);
135 }
136
137 if (!table) {
138 return clk_register_fixed_factor(NULL, name, parent_name, 0,
139 mult, div);
140 } else {
141 return clk_register_divider_table(NULL, name, parent_name, 0,
142 cpg->reg + reg, shift, 4, 0,
143 table, &cpg->lock);
144 }
145}
146
147static void __init r8a7740_cpg_clocks_init(struct device_node *np)
148{
149 struct r8a7740_cpg *cpg;
150 struct clk **clks;
151 unsigned int i;
152 int num_clks;
153
154 if (of_property_read_u32(np, "renesas,mode", &cpg_mode))
155 pr_warn("%s: missing renesas,mode property\n", __func__);
156
157 num_clks = of_property_count_strings(np, "clock-output-names");
158 if (num_clks < 0) {
159 pr_err("%s: failed to count clocks\n", __func__);
160 return;
161 }
162
163 cpg = kzalloc(sizeof(*cpg), GFP_KERNEL);
164 clks = kzalloc(num_clks * sizeof(*clks), GFP_KERNEL);
165 if (cpg == NULL || clks == NULL) {
166 /* We're leaking memory on purpose, there's no point in cleaning
167 * up as the system won't boot anyway.
168 */
169 return;
170 }
171
172 spin_lock_init(&cpg->lock);
173
174 cpg->data.clks = clks;
175 cpg->data.clk_num = num_clks;
176
177 cpg->reg = of_iomap(np, 0);
178 if (WARN_ON(cpg->reg == NULL))
179 return;
180
181 for (i = 0; i < num_clks; ++i) {
182 const char *name;
183 struct clk *clk;
184
185 of_property_read_string_index(np, "clock-output-names", i,
186 &name);
187
188 clk = r8a7740_cpg_register_clock(np, cpg, name);
189 if (IS_ERR(clk))
190 pr_err("%s: failed to register %s %s clock (%ld)\n",
191 __func__, np->name, name, PTR_ERR(clk));
192 else
193 cpg->data.clks[i] = clk;
194 }
195
196 of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
197}
198CLK_OF_DECLARE(r8a7740_cpg_clks, "renesas,r8a7740-cpg-clocks",
199 r8a7740_cpg_clocks_init);
diff --git a/drivers/clk/shmobile/clk-r8a7779.c b/drivers/clk/shmobile/clk-r8a7779.c
new file mode 100644
index 000000000000..652ecacb6daf
--- /dev/null
+++ b/drivers/clk/shmobile/clk-r8a7779.c
@@ -0,0 +1,180 @@
1/*
2 * r8a7779 Core CPG Clocks
3 *
4 * Copyright (C) 2013, 2014 Horms Solutions Ltd.
5 *
6 * Contact: Simon Horman <horms@verge.net.au>
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; version 2 of the License.
11 */
12
13#include <linux/clk-provider.h>
14#include <linux/clkdev.h>
15#include <linux/clk/shmobile.h>
16#include <linux/init.h>
17#include <linux/kernel.h>
18#include <linux/of.h>
19#include <linux/of_address.h>
20#include <linux/spinlock.h>
21
22#include <dt-bindings/clock/r8a7779-clock.h>
23
24#define CPG_NUM_CLOCKS (R8A7779_CLK_OUT + 1)
25
26struct r8a7779_cpg {
27 struct clk_onecell_data data;
28 spinlock_t lock;
29 void __iomem *reg;
30};
31
32/* -----------------------------------------------------------------------------
33 * CPG Clock Data
34 */
35
36/*
37 * MD1 = 1 MD1 = 0
38 * (PLLA = 1500) (PLLA = 1600)
39 * (MHz) (MHz)
40 *------------------------------------------------+--------------------
41 * clkz 1000 (2/3) 800 (1/2)
42 * clkzs 250 (1/6) 200 (1/8)
43 * clki 750 (1/2) 800 (1/2)
44 * clks 250 (1/6) 200 (1/8)
45 * clks1 125 (1/12) 100 (1/16)
46 * clks3 187.5 (1/8) 200 (1/8)
47 * clks4 93.7 (1/16) 100 (1/16)
48 * clkp 62.5 (1/24) 50 (1/32)
49 * clkg 62.5 (1/24) 66.6 (1/24)
50 * clkb, CLKOUT
51 * (MD2 = 0) 62.5 (1/24) 66.6 (1/24)
52 * (MD2 = 1) 41.6 (1/36) 50 (1/32)
53 */
54
55#define CPG_CLK_CONFIG_INDEX(md) (((md) & (BIT(2)|BIT(1))) >> 1)
56
57struct cpg_clk_config {
58 unsigned int z_mult;
59 unsigned int z_div;
60 unsigned int zs_and_s_div;
61 unsigned int s1_div;
62 unsigned int p_div;
63 unsigned int b_and_out_div;
64};
65
66static const struct cpg_clk_config cpg_clk_configs[4] __initconst = {
67 { 1, 2, 8, 16, 32, 24 },
68 { 2, 3, 6, 12, 24, 24 },
69 { 1, 2, 8, 16, 32, 32 },
70 { 2, 3, 6, 12, 24, 36 },
71};
72
73/*
74 * MD PLLA Ratio
75 * 12 11
76 *------------------------
77 * 0 0 x42
78 * 0 1 x48
79 * 1 0 x56
80 * 1 1 x64
81 */
82
83#define CPG_PLLA_MULT_INDEX(md) (((md) & (BIT(12)|BIT(11))) >> 11)
84
85static const unsigned int cpg_plla_mult[4] __initconst = { 42, 48, 56, 64 };
86
87/* -----------------------------------------------------------------------------
88 * Initialization
89 */
90
91static u32 cpg_mode __initdata;
92
93static struct clk * __init
94r8a7779_cpg_register_clock(struct device_node *np, struct r8a7779_cpg *cpg,
95 const struct cpg_clk_config *config,
96 unsigned int plla_mult, const char *name)
97{
98 const char *parent_name = "plla";
99 unsigned int mult = 1;
100 unsigned int div = 1;
101
102 if (!strcmp(name, "plla")) {
103 parent_name = of_clk_get_parent_name(np, 0);
104 mult = plla_mult;
105 } else if (!strcmp(name, "z")) {
106 div = config->z_div;
107 mult = config->z_mult;
108 } else if (!strcmp(name, "zs") || !strcmp(name, "s")) {
109 div = config->zs_and_s_div;
110 } else if (!strcmp(name, "s1")) {
111 div = config->s1_div;
112 } else if (!strcmp(name, "p")) {
113 div = config->p_div;
114 } else if (!strcmp(name, "b") || !strcmp(name, "out")) {
115 div = config->b_and_out_div;
116 } else {
117 return ERR_PTR(-EINVAL);
118 }
119
120 return clk_register_fixed_factor(NULL, name, parent_name, 0, mult, div);
121}
122
123static void __init r8a7779_cpg_clocks_init(struct device_node *np)
124{
125 const struct cpg_clk_config *config;
126 struct r8a7779_cpg *cpg;
127 struct clk **clks;
128 unsigned int i, plla_mult;
129 int num_clks;
130
131 num_clks = of_property_count_strings(np, "clock-output-names");
132 if (num_clks < 0) {
133 pr_err("%s: failed to count clocks\n", __func__);
134 return;
135 }
136
137 cpg = kzalloc(sizeof(*cpg), GFP_KERNEL);
138 clks = kzalloc(CPG_NUM_CLOCKS * sizeof(*clks), GFP_KERNEL);
139 if (cpg == NULL || clks == NULL) {
140 /* We're leaking memory on purpose, there's no point in cleaning
141 * up as the system won't boot anyway.
142 */
143 return;
144 }
145
146 spin_lock_init(&cpg->lock);
147
148 cpg->data.clks = clks;
149 cpg->data.clk_num = num_clks;
150
151 config = &cpg_clk_configs[CPG_CLK_CONFIG_INDEX(cpg_mode)];
152 plla_mult = cpg_plla_mult[CPG_PLLA_MULT_INDEX(cpg_mode)];
153
154 for (i = 0; i < num_clks; ++i) {
155 const char *name;
156 struct clk *clk;
157
158 of_property_read_string_index(np, "clock-output-names", i,
159 &name);
160
161 clk = r8a7779_cpg_register_clock(np, cpg, config,
162 plla_mult, name);
163 if (IS_ERR(clk))
164 pr_err("%s: failed to register %s %s clock (%ld)\n",
165 __func__, np->name, name, PTR_ERR(clk));
166 else
167 cpg->data.clks[i] = clk;
168 }
169
170 of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data);
171}
172CLK_OF_DECLARE(r8a7779_cpg_clks, "renesas,r8a7779-cpg-clocks",
173 r8a7779_cpg_clocks_init);
174
175void __init r8a7779_clocks_init(u32 mode)
176{
177 cpg_mode = mode;
178
179 of_clk_init(NULL);
180}
diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index 501d513bf890..dd3a78c64795 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -32,7 +32,6 @@
32#define SOCFPGA_MMC_CLK "sdmmc_clk" 32#define SOCFPGA_MMC_CLK "sdmmc_clk"
33#define SOCFPGA_GPIO_DB_CLK_OFFSET 0xA8 33#define SOCFPGA_GPIO_DB_CLK_OFFSET 0xA8
34 34
35#define div_mask(width) ((1 << (width)) - 1)
36#define streq(a, b) (strcmp((a), (b)) == 0) 35#define streq(a, b) (strcmp((a), (b)) == 0)
37 36
38#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw) 37#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw)
diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c
index 81623a3736f9..46531c34ec9b 100644
--- a/drivers/clk/socfpga/clk-periph.c
+++ b/drivers/clk/socfpga/clk-periph.c
@@ -29,12 +29,18 @@ static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk,
29 unsigned long parent_rate) 29 unsigned long parent_rate)
30{ 30{
31 struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk); 31 struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk);
32 u32 div; 32 u32 div, val;
33 33
34 if (socfpgaclk->fixed_div) 34 if (socfpgaclk->fixed_div) {
35 div = socfpgaclk->fixed_div; 35 div = socfpgaclk->fixed_div;
36 else 36 } else {
37 if (socfpgaclk->div_reg) {
38 val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
39 val &= div_mask(socfpgaclk->width);
40 parent_rate /= (val + 1);
41 }
37 div = ((readl(socfpgaclk->hw.reg) & 0x1ff) + 1); 42 div = ((readl(socfpgaclk->hw.reg) & 0x1ff) + 1);
43 }
38 44
39 return parent_rate / div; 45 return parent_rate / div;
40} 46}
@@ -54,6 +60,7 @@ static __init void __socfpga_periph_init(struct device_node *node,
54 struct clk_init_data init; 60 struct clk_init_data init;
55 int rc; 61 int rc;
56 u32 fixed_div; 62 u32 fixed_div;
63 u32 div_reg[3];
57 64
58 of_property_read_u32(node, "reg", &reg); 65 of_property_read_u32(node, "reg", &reg);
59 66
@@ -63,6 +70,15 @@ static __init void __socfpga_periph_init(struct device_node *node,
63 70
64 periph_clk->hw.reg = clk_mgr_base_addr + reg; 71 periph_clk->hw.reg = clk_mgr_base_addr + reg;
65 72
73 rc = of_property_read_u32_array(node, "div-reg", div_reg, 3);
74 if (!rc) {
75 periph_clk->div_reg = clk_mgr_base_addr + div_reg[0];
76 periph_clk->shift = div_reg[1];
77 periph_clk->width = div_reg[2];
78 } else {
79 periph_clk->div_reg = 0;
80 }
81
66 rc = of_property_read_u32(node, "fixed-divider", &fixed_div); 82 rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
67 if (rc) 83 if (rc)
68 periph_clk->fixed_div = 0; 84 periph_clk->fixed_div = 0;
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
index d2e54019c94f..d291f60c46e1 100644
--- a/drivers/clk/socfpga/clk.h
+++ b/drivers/clk/socfpga/clk.h
@@ -27,6 +27,7 @@
27#define CLKMGR_PERPLL_SRC 0xAC 27#define CLKMGR_PERPLL_SRC 0xAC
28 28
29#define SOCFPGA_MAX_PARENTS 3 29#define SOCFPGA_MAX_PARENTS 3
30#define div_mask(width) ((1 << (width)) - 1)
30 31
31extern void __iomem *clk_mgr_base_addr; 32extern void __iomem *clk_mgr_base_addr;
32 33
@@ -52,6 +53,9 @@ struct socfpga_periph_clk {
52 struct clk_gate hw; 53 struct clk_gate hw;
53 char *parent_name; 54 char *parent_name;
54 u32 fixed_div; 55 u32 fixed_div;
56 void __iomem *div_reg;
57 u32 width; /* only valid if div_reg != 0 */
58 u32 shift; /* only valid if div_reg != 0 */
55}; 59};
56 60
57#endif /* SOCFPGA_CLK_H */ 61#endif /* SOCFPGA_CLK_H */
diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c
index a886702f7c8b..d8b9b1a2aeda 100644
--- a/drivers/clk/st/clkgen-pll.c
+++ b/drivers/clk/st/clkgen-pll.c
@@ -655,6 +655,7 @@ static struct of_device_id c32_gpu_pll_of_match[] = {
655 .compatible = "st,stih416-gpu-pll-c32", 655 .compatible = "st,stih416-gpu-pll-c32",
656 .data = &st_pll1200c32_gpu_416, 656 .data = &st_pll1200c32_gpu_416,
657 }, 657 },
658 {}
658}; 659};
659 660
660static void __init clkgengpu_c32_pll_setup(struct device_node *np) 661static void __init clkgengpu_c32_pll_setup(struct device_node *np)
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
index 9e232644f07e..3806d97e529b 100644
--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
@@ -77,6 +77,41 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate,
77 return rate; 77 return rate;
78} 78}
79 79
80static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate,
81 unsigned long *best_parent_rate,
82 struct clk **best_parent_p)
83{
84 struct clk *clk = hw->clk, *parent, *best_parent = NULL;
85 int i, num_parents;
86 unsigned long parent_rate, best = 0, child_rate, best_child_rate = 0;
87
88 /* find the parent that can help provide the fastest rate <= rate */
89 num_parents = __clk_get_num_parents(clk);
90 for (i = 0; i < num_parents; i++) {
91 parent = clk_get_parent_by_index(clk, i);
92 if (!parent)
93 continue;
94 if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT)
95 parent_rate = __clk_round_rate(parent, rate);
96 else
97 parent_rate = __clk_get_rate(parent);
98
99 child_rate = clk_factors_round_rate(hw, rate, &parent_rate);
100
101 if (child_rate <= rate && child_rate > best_child_rate) {
102 best_parent = parent;
103 best = parent_rate;
104 best_child_rate = child_rate;
105 }
106 }
107
108 if (best_parent)
109 *best_parent_p = best_parent;
110 *best_parent_rate = best;
111
112 return best_child_rate;
113}
114
80static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate, 115static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
81 unsigned long parent_rate) 116 unsigned long parent_rate)
82{ 117{
@@ -113,6 +148,7 @@ static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
113} 148}
114 149
115const struct clk_ops clk_factors_ops = { 150const struct clk_ops clk_factors_ops = {
151 .determine_rate = clk_factors_determine_rate,
116 .recalc_rate = clk_factors_recalc_rate, 152 .recalc_rate = clk_factors_recalc_rate,
117 .round_rate = clk_factors_round_rate, 153 .round_rate = clk_factors_round_rate,
118 .set_rate = clk_factors_set_rate, 154 .set_rate = clk_factors_set_rate,
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 9eddf22d56a4..426483422d3d 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -507,6 +507,43 @@ CLK_OF_DECLARE(sun7i_a20_gmac, "allwinner,sun7i-a20-gmac-clk",
507 507
508 508
509/** 509/**
510 * clk_sunxi_mmc_phase_control() - configures MMC clock phase control
511 */
512
513void clk_sunxi_mmc_phase_control(struct clk *clk, u8 sample, u8 output)
514{
515 #define to_clk_composite(_hw) container_of(_hw, struct clk_composite, hw)
516 #define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
517
518 struct clk_hw *hw = __clk_get_hw(clk);
519 struct clk_composite *composite = to_clk_composite(hw);
520 struct clk_hw *rate_hw = composite->rate_hw;
521 struct clk_factors *factors = to_clk_factors(rate_hw);
522 unsigned long flags = 0;
523 u32 reg;
524
525 if (factors->lock)
526 spin_lock_irqsave(factors->lock, flags);
527
528 reg = readl(factors->reg);
529
530 /* set sample clock phase control */
531 reg &= ~(0x7 << 20);
532 reg |= ((sample & 0x7) << 20);
533
534 /* set output clock phase control */
535 reg &= ~(0x7 << 8);
536 reg |= ((output & 0x7) << 8);
537
538 writel(reg, factors->reg);
539
540 if (factors->lock)
541 spin_unlock_irqrestore(factors->lock, flags);
542}
543EXPORT_SYMBOL(clk_sunxi_mmc_phase_control);
544
545
546/**
510 * sunxi_factors_clk_setup() - Setup function for factor clocks 547 * sunxi_factors_clk_setup() - Setup function for factor clocks
511 */ 548 */
512 549
diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h
index c39613c519af..0011d547a9f7 100644
--- a/drivers/clk/tegra/clk-id.h
+++ b/drivers/clk/tegra/clk-id.h
@@ -233,6 +233,7 @@ enum clk_id {
233 tegra_clk_xusb_hs_src, 233 tegra_clk_xusb_hs_src,
234 tegra_clk_xusb_ss, 234 tegra_clk_xusb_ss,
235 tegra_clk_xusb_ss_src, 235 tegra_clk_xusb_ss_src,
236 tegra_clk_xusb_ss_div2,
236 tegra_clk_max, 237 tegra_clk_max,
237}; 238};
238 239
diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c
index 6aad8abc69a2..637b62ccc91e 100644
--- a/drivers/clk/tegra/clk-pll.c
+++ b/drivers/clk/tegra/clk-pll.c
@@ -96,10 +96,20 @@
96 (PLLE_SS_MAX_VAL | PLLE_SS_INC_VAL | PLLE_SS_INCINTRV_VAL) 96 (PLLE_SS_MAX_VAL | PLLE_SS_INC_VAL | PLLE_SS_INCINTRV_VAL)
97 97
98#define PLLE_AUX_PLLP_SEL BIT(2) 98#define PLLE_AUX_PLLP_SEL BIT(2)
99#define PLLE_AUX_USE_LOCKDET BIT(3)
99#define PLLE_AUX_ENABLE_SWCTL BIT(4) 100#define PLLE_AUX_ENABLE_SWCTL BIT(4)
101#define PLLE_AUX_SS_SWCTL BIT(6)
100#define PLLE_AUX_SEQ_ENABLE BIT(24) 102#define PLLE_AUX_SEQ_ENABLE BIT(24)
103#define PLLE_AUX_SEQ_START_STATE BIT(25)
101#define PLLE_AUX_PLLRE_SEL BIT(28) 104#define PLLE_AUX_PLLRE_SEL BIT(28)
102 105
106#define XUSBIO_PLL_CFG0 0x51c
107#define XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL BIT(0)
108#define XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL BIT(2)
109#define XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET BIT(6)
110#define XUSBIO_PLL_CFG0_SEQ_ENABLE BIT(24)
111#define XUSBIO_PLL_CFG0_SEQ_START_STATE BIT(25)
112
103#define PLLE_MISC_PLLE_PTS BIT(8) 113#define PLLE_MISC_PLLE_PTS BIT(8)
104#define PLLE_MISC_IDDQ_SW_VALUE BIT(13) 114#define PLLE_MISC_IDDQ_SW_VALUE BIT(13)
105#define PLLE_MISC_IDDQ_SW_CTRL BIT(14) 115#define PLLE_MISC_IDDQ_SW_CTRL BIT(14)
@@ -1328,7 +1338,28 @@ static int clk_plle_tegra114_enable(struct clk_hw *hw)
1328 pll_writel(val, PLLE_SS_CTRL, pll); 1338 pll_writel(val, PLLE_SS_CTRL, pll);
1329 udelay(1); 1339 udelay(1);
1330 1340
1331 /* TODO: enable hw control of xusb brick pll */ 1341 /* Enable hw control of xusb brick pll */
1342 val = pll_readl_misc(pll);
1343 val &= ~PLLE_MISC_IDDQ_SW_CTRL;
1344 pll_writel_misc(val, pll);
1345
1346 val = pll_readl(pll->params->aux_reg, pll);
1347 val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SEQ_START_STATE);
1348 val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
1349 pll_writel(val, pll->params->aux_reg, pll);
1350 udelay(1);
1351 val |= PLLE_AUX_SEQ_ENABLE;
1352 pll_writel(val, pll->params->aux_reg, pll);
1353
1354 val = pll_readl(XUSBIO_PLL_CFG0, pll);
1355 val |= (XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET |
1356 XUSBIO_PLL_CFG0_SEQ_START_STATE);
1357 val &= ~(XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL |
1358 XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL);
1359 pll_writel(val, XUSBIO_PLL_CFG0, pll);
1360 udelay(1);
1361 val |= XUSBIO_PLL_CFG0_SEQ_ENABLE;
1362 pll_writel(val, XUSBIO_PLL_CFG0, pll);
1332 1363
1333out: 1364out:
1334 if (pll->lock) 1365 if (pll->lock)
diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c
index 1fa5c3f33b20..adf6b814b5bc 100644
--- a/drivers/clk/tegra/clk-tegra-periph.c
+++ b/drivers/clk/tegra/clk-tegra-periph.c
@@ -329,7 +329,9 @@ static u32 mux_clkm_pllp_pllc_pllre_idx[] = {
329static const char *mux_clkm_48M_pllp_480M[] = { 329static const char *mux_clkm_48M_pllp_480M[] = {
330 "clk_m", "pll_u_48M", "pll_p", "pll_u_480M" 330 "clk_m", "pll_u_48M", "pll_p", "pll_u_480M"
331}; 331};
332#define mux_clkm_48M_pllp_480M_idx NULL 332static u32 mux_clkm_48M_pllp_480M_idx[] = {
333 [0] = 0, [1] = 2, [2] = 4, [3] = 6,
334};
333 335
334static const char *mux_clkm_pllre_clk32_480M_pllc_ref[] = { 336static const char *mux_clkm_pllre_clk32_480M_pllc_ref[] = {
335 "clk_m", "pll_re_out", "clk_32k", "pll_u_480M", "pll_c", "pll_ref" 337 "clk_m", "pll_re_out", "clk_32k", "pll_u_480M", "pll_c", "pll_ref"
@@ -338,6 +340,11 @@ static u32 mux_clkm_pllre_clk32_480M_pllc_ref_idx[] = {
338 [0] = 0, [1] = 1, [2] = 3, [3] = 3, [4] = 4, [5] = 7, 340 [0] = 0, [1] = 1, [2] = 3, [3] = 3, [4] = 4, [5] = 7,
339}; 341};
340 342
343static const char *mux_ss_60M[] = {
344 "xusb_ss_div2", "pll_u_60M"
345};
346#define mux_ss_60M_idx NULL
347
341static const char *mux_d_audio_clk[] = { 348static const char *mux_d_audio_clk[] = {
342 "pll_a_out0", "pll_p", "clk_m", "spdif_in_sync", "i2s0_sync", 349 "pll_a_out0", "pll_p", "clk_m", "spdif_in_sync", "i2s0_sync",
343 "i2s1_sync", "i2s2_sync", "i2s3_sync", "i2s4_sync", "vimclk_sync", 350 "i2s1_sync", "i2s2_sync", "i2s3_sync", "i2s4_sync", "vimclk_sync",
@@ -499,6 +506,7 @@ static struct tegra_periph_init_data periph_clks[] = {
499 XUSB("xusb_falcon_src", mux_clkm_pllp_pllc_pllre, CLK_SOURCE_XUSB_FALCON_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_falcon_src), 506 XUSB("xusb_falcon_src", mux_clkm_pllp_pllc_pllre, CLK_SOURCE_XUSB_FALCON_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_falcon_src),
500 XUSB("xusb_fs_src", mux_clkm_48M_pllp_480M, CLK_SOURCE_XUSB_FS_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_fs_src), 507 XUSB("xusb_fs_src", mux_clkm_48M_pllp_480M, CLK_SOURCE_XUSB_FS_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_fs_src),
501 XUSB("xusb_ss_src", mux_clkm_pllre_clk32_480M_pllc_ref, CLK_SOURCE_XUSB_SS_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_ss_src), 508 XUSB("xusb_ss_src", mux_clkm_pllre_clk32_480M_pllc_ref, CLK_SOURCE_XUSB_SS_SRC, 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_ss_src),
509 NODIV("xusb_hs_src", mux_ss_60M, CLK_SOURCE_XUSB_SS_SRC, 25, MASK(1), 143, TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_hs_src, NULL),
502 XUSB("xusb_dev_src", mux_clkm_pllp_pllc_pllre, CLK_SOURCE_XUSB_DEV_SRC, 95, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_dev_src), 510 XUSB("xusb_dev_src", mux_clkm_pllp_pllc_pllre, CLK_SOURCE_XUSB_DEV_SRC, 95, TEGRA_PERIPH_ON_APB | TEGRA_PERIPH_NO_RESET, tegra_clk_xusb_dev_src),
503}; 511};
504 512
diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index 80431f0fb268..b9c8ba258ef0 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -142,7 +142,6 @@
142#define UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL BIT(0) 142#define UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL BIT(0)
143 143
144#define CLK_SOURCE_CSITE 0x1d4 144#define CLK_SOURCE_CSITE 0x1d4
145#define CLK_SOURCE_XUSB_SS_SRC 0x610
146#define CLK_SOURCE_EMC 0x19c 145#define CLK_SOURCE_EMC 0x19c
147 146
148/* PLLM override registers */ 147/* PLLM override registers */
@@ -834,6 +833,7 @@ static struct tegra_clk tegra114_clks[tegra_clk_max] __initdata = {
834 [tegra_clk_xusb_falcon_src] = { .dt_id = TEGRA114_CLK_XUSB_FALCON_SRC, .present = true }, 833 [tegra_clk_xusb_falcon_src] = { .dt_id = TEGRA114_CLK_XUSB_FALCON_SRC, .present = true },
835 [tegra_clk_xusb_fs_src] = { .dt_id = TEGRA114_CLK_XUSB_FS_SRC, .present = true }, 834 [tegra_clk_xusb_fs_src] = { .dt_id = TEGRA114_CLK_XUSB_FS_SRC, .present = true },
836 [tegra_clk_xusb_ss_src] = { .dt_id = TEGRA114_CLK_XUSB_SS_SRC, .present = true }, 835 [tegra_clk_xusb_ss_src] = { .dt_id = TEGRA114_CLK_XUSB_SS_SRC, .present = true },
836 [tegra_clk_xusb_ss_div2] = { .dt_id = TEGRA114_CLK_XUSB_SS_DIV2, .present = true},
837 [tegra_clk_xusb_dev_src] = { .dt_id = TEGRA114_CLK_XUSB_DEV_SRC, .present = true }, 837 [tegra_clk_xusb_dev_src] = { .dt_id = TEGRA114_CLK_XUSB_DEV_SRC, .present = true },
838 [tegra_clk_xusb_dev] = { .dt_id = TEGRA114_CLK_XUSB_DEV, .present = true }, 838 [tegra_clk_xusb_dev] = { .dt_id = TEGRA114_CLK_XUSB_DEV, .present = true },
839 [tegra_clk_xusb_hs_src] = { .dt_id = TEGRA114_CLK_XUSB_HS_SRC, .present = true }, 839 [tegra_clk_xusb_hs_src] = { .dt_id = TEGRA114_CLK_XUSB_HS_SRC, .present = true },
@@ -1182,16 +1182,11 @@ static __init void tegra114_periph_clk_init(void __iomem *clk_base,
1182 void __iomem *pmc_base) 1182 void __iomem *pmc_base)
1183{ 1183{
1184 struct clk *clk; 1184 struct clk *clk;
1185 u32 val;
1186
1187 /* xusb_hs_src */
1188 val = readl(clk_base + CLK_SOURCE_XUSB_SS_SRC);
1189 val |= BIT(25); /* always select PLLU_60M */
1190 writel(val, clk_base + CLK_SOURCE_XUSB_SS_SRC);
1191 1185
1192 clk = clk_register_fixed_factor(NULL, "xusb_hs_src", "pll_u_60M", 0, 1186 /* xusb_ss_div2 */
1193 1, 1); 1187 clk = clk_register_fixed_factor(NULL, "xusb_ss_div2", "xusb_ss_src", 0,
1194 clks[TEGRA114_CLK_XUSB_HS_SRC] = clk; 1188 1, 2);
1189 clks[TEGRA114_CLK_XUSB_SS_DIV2] = clk;
1195 1190
1196 /* dsia mux */ 1191 /* dsia mux */
1197 clk = clk_register_mux(NULL, "dsia_mux", mux_plld_out0_plld2_out0, 1192 clk = clk_register_mux(NULL, "dsia_mux", mux_plld_out0_plld2_out0,
@@ -1301,7 +1296,12 @@ static struct tegra_clk_init_table init_table[] __initdata = {
1301 {TEGRA114_CLK_GR3D, TEGRA114_CLK_PLL_C2, 300000000, 0}, 1296 {TEGRA114_CLK_GR3D, TEGRA114_CLK_PLL_C2, 300000000, 0},
1302 {TEGRA114_CLK_DSIALP, TEGRA114_CLK_PLL_P, 68000000, 0}, 1297 {TEGRA114_CLK_DSIALP, TEGRA114_CLK_PLL_P, 68000000, 0},
1303 {TEGRA114_CLK_DSIBLP, TEGRA114_CLK_PLL_P, 68000000, 0}, 1298 {TEGRA114_CLK_DSIBLP, TEGRA114_CLK_PLL_P, 68000000, 0},
1304 1299 {TEGRA114_CLK_PLL_RE_VCO, TEGRA114_CLK_CLK_MAX, 612000000, 0},
1300 {TEGRA114_CLK_XUSB_SS_SRC, TEGRA114_CLK_PLL_RE_OUT, 122400000, 0},
1301 {TEGRA114_CLK_XUSB_FS_SRC, TEGRA114_CLK_PLL_U_48M, 48000000, 0},
1302 {TEGRA114_CLK_XUSB_HS_SRC, TEGRA114_CLK_XUSB_SS_DIV2, 61200000, 0},
1303 {TEGRA114_CLK_XUSB_FALCON_SRC, TEGRA114_CLK_PLL_P, 204000000, 0},
1304 {TEGRA114_CLK_XUSB_HOST_SRC, TEGRA114_CLK_PLL_P, 102000000, 0},
1305 /* This MUST be the last entry. */ 1305 /* This MUST be the last entry. */
1306 {TEGRA114_CLK_CLK_MAX, TEGRA114_CLK_CLK_MAX, 0, 0}, 1306 {TEGRA114_CLK_CLK_MAX, TEGRA114_CLK_CLK_MAX, 0, 0},
1307}; 1307};
diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c
index cc37c342c4cb..80efe51fdcdf 100644
--- a/drivers/clk/tegra/clk-tegra124.c
+++ b/drivers/clk/tegra/clk-tegra124.c
@@ -30,7 +30,6 @@
30 30
31#define CLK_SOURCE_CSITE 0x1d4 31#define CLK_SOURCE_CSITE 0x1d4
32#define CLK_SOURCE_EMC 0x19c 32#define CLK_SOURCE_EMC 0x19c
33#define CLK_SOURCE_XUSB_SS_SRC 0x610
34 33
35#define PLLC_BASE 0x80 34#define PLLC_BASE 0x80
36#define PLLC_OUT 0x84 35#define PLLC_OUT 0x84
@@ -925,6 +924,7 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = {
925 [tegra_clk_xusb_falcon_src] = { .dt_id = TEGRA124_CLK_XUSB_FALCON_SRC, .present = true }, 924 [tegra_clk_xusb_falcon_src] = { .dt_id = TEGRA124_CLK_XUSB_FALCON_SRC, .present = true },
926 [tegra_clk_xusb_fs_src] = { .dt_id = TEGRA124_CLK_XUSB_FS_SRC, .present = true }, 925 [tegra_clk_xusb_fs_src] = { .dt_id = TEGRA124_CLK_XUSB_FS_SRC, .present = true },
927 [tegra_clk_xusb_ss_src] = { .dt_id = TEGRA124_CLK_XUSB_SS_SRC, .present = true }, 926 [tegra_clk_xusb_ss_src] = { .dt_id = TEGRA124_CLK_XUSB_SS_SRC, .present = true },
927 [tegra_clk_xusb_ss_div2] = { .dt_id = TEGRA124_CLK_XUSB_SS_DIV2, .present = true },
928 [tegra_clk_xusb_dev_src] = { .dt_id = TEGRA124_CLK_XUSB_DEV_SRC, .present = true }, 928 [tegra_clk_xusb_dev_src] = { .dt_id = TEGRA124_CLK_XUSB_DEV_SRC, .present = true },
929 [tegra_clk_xusb_dev] = { .dt_id = TEGRA124_CLK_XUSB_DEV, .present = true }, 929 [tegra_clk_xusb_dev] = { .dt_id = TEGRA124_CLK_XUSB_DEV, .present = true },
930 [tegra_clk_xusb_hs_src] = { .dt_id = TEGRA124_CLK_XUSB_HS_SRC, .present = true }, 930 [tegra_clk_xusb_hs_src] = { .dt_id = TEGRA124_CLK_XUSB_HS_SRC, .present = true },
@@ -1105,16 +1105,11 @@ static __init void tegra124_periph_clk_init(void __iomem *clk_base,
1105 void __iomem *pmc_base) 1105 void __iomem *pmc_base)
1106{ 1106{
1107 struct clk *clk; 1107 struct clk *clk;
1108 u32 val;
1109
1110 /* xusb_hs_src */
1111 val = readl(clk_base + CLK_SOURCE_XUSB_SS_SRC);
1112 val |= BIT(25); /* always select PLLU_60M */
1113 writel(val, clk_base + CLK_SOURCE_XUSB_SS_SRC);
1114 1108
1115 clk = clk_register_fixed_factor(NULL, "xusb_hs_src", "pll_u_60M", 0, 1109 /* xusb_ss_div2 */
1116 1, 1); 1110 clk = clk_register_fixed_factor(NULL, "xusb_ss_div2", "xusb_ss_src", 0,
1117 clks[TEGRA124_CLK_XUSB_HS_SRC] = clk; 1111 1, 2);
1112 clks[TEGRA124_CLK_XUSB_SS_DIV2] = clk;
1118 1113
1119 /* dsia mux */ 1114 /* dsia mux */
1120 clk = clk_register_mux(NULL, "dsia_mux", mux_plld_out0_plld2_out0, 1115 clk = clk_register_mux(NULL, "dsia_mux", mux_plld_out0_plld2_out0,
@@ -1368,6 +1363,12 @@ static struct tegra_clk_init_table init_table[] __initdata = {
1368 {TEGRA124_CLK_SBC4, TEGRA124_CLK_PLL_P, 12000000, 1}, 1363 {TEGRA124_CLK_SBC4, TEGRA124_CLK_PLL_P, 12000000, 1},
1369 {TEGRA124_CLK_TSEC, TEGRA124_CLK_PLL_C3, 0, 0}, 1364 {TEGRA124_CLK_TSEC, TEGRA124_CLK_PLL_C3, 0, 0},
1370 {TEGRA124_CLK_MSENC, TEGRA124_CLK_PLL_C3, 0, 0}, 1365 {TEGRA124_CLK_MSENC, TEGRA124_CLK_PLL_C3, 0, 0},
1366 {TEGRA124_CLK_PLL_RE_VCO, TEGRA124_CLK_CLK_MAX, 672000000, 0},
1367 {TEGRA124_CLK_XUSB_SS_SRC, TEGRA124_CLK_PLL_U_480M, 120000000, 0},
1368 {TEGRA124_CLK_XUSB_FS_SRC, TEGRA124_CLK_PLL_U_48M, 48000000, 0},
1369 {TEGRA124_CLK_XUSB_HS_SRC, TEGRA124_CLK_PLL_U_60M, 60000000, 0},
1370 {TEGRA124_CLK_XUSB_FALCON_SRC, TEGRA124_CLK_PLL_RE_OUT, 224000000, 0},
1371 {TEGRA124_CLK_XUSB_HOST_SRC, TEGRA124_CLK_PLL_RE_OUT, 112000000, 0},
1371 /* This MUST be the last entry. */ 1372 /* This MUST be the last entry. */
1372 {TEGRA124_CLK_CLK_MAX, TEGRA124_CLK_CLK_MAX, 0, 0}, 1373 {TEGRA124_CLK_CLK_MAX, TEGRA124_CLK_CLK_MAX, 0, 0},
1373}; 1374};
diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c
index a820b0cfcf57..bc96f103bd7c 100644
--- a/drivers/clk/versatile/clk-icst.c
+++ b/drivers/clk/versatile/clk-icst.c
@@ -140,6 +140,7 @@ struct clk *icst_clk_register(struct device *dev,
140 140
141 pclone = kmemdup(desc->params, sizeof(*pclone), GFP_KERNEL); 141 pclone = kmemdup(desc->params, sizeof(*pclone), GFP_KERNEL);
142 if (!pclone) { 142 if (!pclone) {
143 kfree(icst);
143 pr_err("could not clone ICST params\n"); 144 pr_err("could not clone ICST params\n");
144 return ERR_PTR(-ENOMEM); 145 return ERR_PTR(-ENOMEM);
145 } 146 }
@@ -160,3 +161,4 @@ struct clk *icst_clk_register(struct device *dev,
160 161
161 return clk; 162 return clk;
162} 163}
164EXPORT_SYMBOL_GPL(icst_clk_register);
diff --git a/drivers/clk/versatile/clk-impd1.c b/drivers/clk/versatile/clk-impd1.c
index 31b44f025f9e..1cc1330dc570 100644
--- a/drivers/clk/versatile/clk-impd1.c
+++ b/drivers/clk/versatile/clk-impd1.c
@@ -20,6 +20,8 @@
20#define IMPD1_LOCK 0x08 20#define IMPD1_LOCK 0x08
21 21
22struct impd1_clk { 22struct impd1_clk {
23 char *pclkname;
24 struct clk *pclk;
23 char *vco1name; 25 char *vco1name;
24 struct clk *vco1clk; 26 struct clk *vco1clk;
25 char *vco2name; 27 char *vco2name;
@@ -31,7 +33,7 @@ struct impd1_clk {
31 struct clk *spiclk; 33 struct clk *spiclk;
32 char *scname; 34 char *scname;
33 struct clk *scclk; 35 struct clk *scclk;
34 struct clk_lookup *clks[6]; 36 struct clk_lookup *clks[15];
35}; 37};
36 38
37/* One entry for each connected IM-PD1 LM */ 39/* One entry for each connected IM-PD1 LM */
@@ -86,6 +88,7 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id)
86{ 88{
87 struct impd1_clk *imc; 89 struct impd1_clk *imc;
88 struct clk *clk; 90 struct clk *clk;
91 struct clk *pclk;
89 int i; 92 int i;
90 93
91 if (id > 3) { 94 if (id > 3) {
@@ -94,11 +97,18 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id)
94 } 97 }
95 imc = &impd1_clks[id]; 98 imc = &impd1_clks[id];
96 99
100 /* Register the fixed rate PCLK */
101 imc->pclkname = kasprintf(GFP_KERNEL, "lm%x-pclk", id);
102 pclk = clk_register_fixed_rate(NULL, imc->pclkname, NULL,
103 CLK_IS_ROOT, 0);
104 imc->pclk = pclk;
105
97 imc->vco1name = kasprintf(GFP_KERNEL, "lm%x-vco1", id); 106 imc->vco1name = kasprintf(GFP_KERNEL, "lm%x-vco1", id);
98 clk = icst_clk_register(NULL, &impd1_icst1_desc, imc->vco1name, NULL, 107 clk = icst_clk_register(NULL, &impd1_icst1_desc, imc->vco1name, NULL,
99 base); 108 base);
100 imc->vco1clk = clk; 109 imc->vco1clk = clk;
101 imc->clks[0] = clkdev_alloc(clk, NULL, "lm%x:01000", id); 110 imc->clks[0] = clkdev_alloc(pclk, "apb_pclk", "lm%x:01000", id);
111 imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:01000", id);
102 112
103 /* VCO2 is also called "CLK2" */ 113 /* VCO2 is also called "CLK2" */
104 imc->vco2name = kasprintf(GFP_KERNEL, "lm%x-vco2", id); 114 imc->vco2name = kasprintf(GFP_KERNEL, "lm%x-vco2", id);
@@ -107,32 +117,43 @@ void integrator_impd1_clk_init(void __iomem *base, unsigned int id)
107 imc->vco2clk = clk; 117 imc->vco2clk = clk;
108 118
109 /* MMCI uses CLK2 right off */ 119 /* MMCI uses CLK2 right off */
110 imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:00700", id); 120 imc->clks[2] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00700", id);
121 imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00700", id);
111 122
112 /* UART reference clock divides CLK2 by a fixed factor 4 */ 123 /* UART reference clock divides CLK2 by a fixed factor 4 */
113 imc->uartname = kasprintf(GFP_KERNEL, "lm%x-uartclk", id); 124 imc->uartname = kasprintf(GFP_KERNEL, "lm%x-uartclk", id);
114 clk = clk_register_fixed_factor(NULL, imc->uartname, imc->vco2name, 125 clk = clk_register_fixed_factor(NULL, imc->uartname, imc->vco2name,
115 CLK_IGNORE_UNUSED, 1, 4); 126 CLK_IGNORE_UNUSED, 1, 4);
116 imc->uartclk = clk; 127 imc->uartclk = clk;
117 imc->clks[2] = clkdev_alloc(clk, NULL, "lm%x:00100", id); 128 imc->clks[4] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00100", id);
118 imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00200", id); 129 imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00100", id);
130 imc->clks[6] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00200", id);
131 imc->clks[7] = clkdev_alloc(clk, NULL, "lm%x:00200", id);
119 132
120 /* SPI PL022 clock divides CLK2 by a fixed factor 64 */ 133 /* SPI PL022 clock divides CLK2 by a fixed factor 64 */
121 imc->spiname = kasprintf(GFP_KERNEL, "lm%x-spiclk", id); 134 imc->spiname = kasprintf(GFP_KERNEL, "lm%x-spiclk", id);
122 clk = clk_register_fixed_factor(NULL, imc->spiname, imc->vco2name, 135 clk = clk_register_fixed_factor(NULL, imc->spiname, imc->vco2name,
123 CLK_IGNORE_UNUSED, 1, 64); 136 CLK_IGNORE_UNUSED, 1, 64);
124 imc->clks[4] = clkdev_alloc(clk, NULL, "lm%x:00300", id); 137 imc->clks[8] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00300", id);
138 imc->clks[9] = clkdev_alloc(clk, NULL, "lm%x:00300", id);
139
140 /* The GPIO blocks and AACI have only PCLK */
141 imc->clks[10] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00400", id);
142 imc->clks[11] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00500", id);
143 imc->clks[12] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00800", id);
125 144
126 /* Smart Card clock divides CLK2 by a fixed factor 4 */ 145 /* Smart Card clock divides CLK2 by a fixed factor 4 */
127 imc->scname = kasprintf(GFP_KERNEL, "lm%x-scclk", id); 146 imc->scname = kasprintf(GFP_KERNEL, "lm%x-scclk", id);
128 clk = clk_register_fixed_factor(NULL, imc->scname, imc->vco2name, 147 clk = clk_register_fixed_factor(NULL, imc->scname, imc->vco2name,
129 CLK_IGNORE_UNUSED, 1, 4); 148 CLK_IGNORE_UNUSED, 1, 4);
130 imc->scclk = clk; 149 imc->scclk = clk;
131 imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00600", id); 150 imc->clks[13] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00600", id);
151 imc->clks[14] = clkdev_alloc(clk, NULL, "lm%x:00600", id);
132 152
133 for (i = 0; i < ARRAY_SIZE(imc->clks); i++) 153 for (i = 0; i < ARRAY_SIZE(imc->clks); i++)
134 clkdev_add(imc->clks[i]); 154 clkdev_add(imc->clks[i]);
135} 155}
156EXPORT_SYMBOL_GPL(integrator_impd1_clk_init);
136 157
137void integrator_impd1_clk_exit(unsigned int id) 158void integrator_impd1_clk_exit(unsigned int id)
138{ 159{
@@ -149,9 +170,12 @@ void integrator_impd1_clk_exit(unsigned int id)
149 clk_unregister(imc->uartclk); 170 clk_unregister(imc->uartclk);
150 clk_unregister(imc->vco2clk); 171 clk_unregister(imc->vco2clk);
151 clk_unregister(imc->vco1clk); 172 clk_unregister(imc->vco1clk);
173 clk_unregister(imc->pclk);
152 kfree(imc->scname); 174 kfree(imc->scname);
153 kfree(imc->spiname); 175 kfree(imc->spiname);
154 kfree(imc->uartname); 176 kfree(imc->uartname);
155 kfree(imc->vco2name); 177 kfree(imc->vco2name);
156 kfree(imc->vco1name); 178 kfree(imc->vco1name);
179 kfree(imc->pclkname);
157} 180}
181EXPORT_SYMBOL_GPL(integrator_impd1_clk_exit);
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index 52c09afdcfb7..246cf1226eaa 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -53,6 +53,9 @@ static void __iomem *zynq_clkc_base;
53 53
54#define NUM_MIO_PINS 54 54#define NUM_MIO_PINS 54
55 55
56#define DBG_CLK_CTRL_CLKACT_TRC BIT(0)
57#define DBG_CLK_CTRL_CPU_1XCLKACT BIT(1)
58
56enum zynq_clk { 59enum zynq_clk {
57 armpll, ddrpll, iopll, 60 armpll, ddrpll, iopll,
58 cpu_6or4x, cpu_3or2x, cpu_2x, cpu_1x, 61 cpu_6or4x, cpu_3or2x, cpu_2x, cpu_1x,
@@ -499,6 +502,15 @@ static void __init zynq_clk_setup(struct device_node *np)
499 clk_output_name[cpu_1x], 0, SLCR_DBG_CLK_CTRL, 1, 0, 502 clk_output_name[cpu_1x], 0, SLCR_DBG_CLK_CTRL, 1, 0,
500 &dbgclk_lock); 503 &dbgclk_lock);
501 504
505 /* leave debug clocks in the state the bootloader set them up to */
506 tmp = clk_readl(SLCR_DBG_CLK_CTRL);
507 if (tmp & DBG_CLK_CTRL_CLKACT_TRC)
508 if (clk_prepare_enable(clks[dbg_trc]))
509 pr_warn("%s: trace clk enable failed\n", __func__);
510 if (tmp & DBG_CLK_CTRL_CPU_1XCLKACT)
511 if (clk_prepare_enable(clks[dbg_apb]))
512 pr_warn("%s: debug APB clk enable failed\n", __func__);
513
502 /* One gated clock for all APER clocks. */ 514 /* One gated clock for all APER clocks. */
503 clks[dma] = clk_register_gate(NULL, clk_output_name[dma], 515 clks[dma] = clk_register_gate(NULL, clk_output_name[dma],
504 clk_output_name[cpu_2x], 0, SLCR_APER_CLK_CTRL, 0, 0, 516 clk_output_name[cpu_2x], 0, SLCR_APER_CLK_CTRL, 0, 0,
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index b675882307e4..779368b683d0 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -701,3 +701,10 @@ config MMC_REALTEK_USB
701 help 701 help
702 Say Y here to include driver code to support SD/MMC card interface 702 Say Y here to include driver code to support SD/MMC card interface
703 of Realtek RTS5129/39 series card reader 703 of Realtek RTS5129/39 series card reader
704
705config MMC_SUNXI
706 tristate "Allwinner sunxi SD/MMC Host Controller support"
707 depends on ARCH_SUNXI
708 help
709 This selects support for the SD/MMC Host Controller on
710 Allwinner sunxi SoCs.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 3eb48b656f25..61cbc241935b 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_MMC_JZ4740) += jz4740_mmc.o
50obj-$(CONFIG_MMC_VUB300) += vub300.o 50obj-$(CONFIG_MMC_VUB300) += vub300.o
51obj-$(CONFIG_MMC_USHC) += ushc.o 51obj-$(CONFIG_MMC_USHC) += ushc.o
52obj-$(CONFIG_MMC_WMT) += wmt-sdmmc.o 52obj-$(CONFIG_MMC_WMT) += wmt-sdmmc.o
53obj-$(CONFIG_MMC_SUNXI) += sunxi-mmc.o
53 54
54obj-$(CONFIG_MMC_REALTEK_PCI) += rtsx_pci_sdmmc.o 55obj-$(CONFIG_MMC_REALTEK_PCI) += rtsx_pci_sdmmc.o
55obj-$(CONFIG_MMC_REALTEK_USB) += rtsx_usb_sdmmc.o 56obj-$(CONFIG_MMC_REALTEK_USB) += rtsx_usb_sdmmc.o
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
new file mode 100644
index 000000000000..024f67c98cdc
--- /dev/null
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -0,0 +1,1049 @@
1/*
2 * Driver for sunxi SD/MMC host controllers
3 * (C) Copyright 2007-2011 Reuuimlla Technology Co., Ltd.
4 * (C) Copyright 2007-2011 Aaron Maoye <leafy.myeh@reuuimllatech.com>
5 * (C) Copyright 2013-2014 O2S GmbH <www.o2s.ch>
6 * (C) Copyright 2013-2014 David Lanzend�rfer <david.lanzendoerfer@o2s.ch>
7 * (C) Copyright 2013-2014 Hans de Goede <hdegoede@redhat.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 */
14
15#include <linux/kernel.h>
16#include <linux/module.h>
17#include <linux/io.h>
18#include <linux/device.h>
19#include <linux/interrupt.h>
20#include <linux/delay.h>
21#include <linux/err.h>
22
23#include <linux/clk.h>
24#include <linux/clk-private.h>
25#include <linux/clk/sunxi.h>
26
27#include <linux/gpio.h>
28#include <linux/platform_device.h>
29#include <linux/spinlock.h>
30#include <linux/scatterlist.h>
31#include <linux/dma-mapping.h>
32#include <linux/slab.h>
33#include <linux/reset.h>
34
35#include <linux/of_address.h>
36#include <linux/of_gpio.h>
37#include <linux/of_platform.h>
38
39#include <linux/mmc/host.h>
40#include <linux/mmc/sd.h>
41#include <linux/mmc/sdio.h>
42#include <linux/mmc/mmc.h>
43#include <linux/mmc/core.h>
44#include <linux/mmc/card.h>
45#include <linux/mmc/slot-gpio.h>
46
47/* register offset definitions */
48#define SDXC_REG_GCTRL (0x00) /* SMC Global Control Register */
49#define SDXC_REG_CLKCR (0x04) /* SMC Clock Control Register */
50#define SDXC_REG_TMOUT (0x08) /* SMC Time Out Register */
51#define SDXC_REG_WIDTH (0x0C) /* SMC Bus Width Register */
52#define SDXC_REG_BLKSZ (0x10) /* SMC Block Size Register */
53#define SDXC_REG_BCNTR (0x14) /* SMC Byte Count Register */
54#define SDXC_REG_CMDR (0x18) /* SMC Command Register */
55#define SDXC_REG_CARG (0x1C) /* SMC Argument Register */
56#define SDXC_REG_RESP0 (0x20) /* SMC Response Register 0 */
57#define SDXC_REG_RESP1 (0x24) /* SMC Response Register 1 */
58#define SDXC_REG_RESP2 (0x28) /* SMC Response Register 2 */
59#define SDXC_REG_RESP3 (0x2C) /* SMC Response Register 3 */
60#define SDXC_REG_IMASK (0x30) /* SMC Interrupt Mask Register */
61#define SDXC_REG_MISTA (0x34) /* SMC Masked Interrupt Status Register */
62#define SDXC_REG_RINTR (0x38) /* SMC Raw Interrupt Status Register */
63#define SDXC_REG_STAS (0x3C) /* SMC Status Register */
64#define SDXC_REG_FTRGL (0x40) /* SMC FIFO Threshold Watermark Registe */
65#define SDXC_REG_FUNS (0x44) /* SMC Function Select Register */
66#define SDXC_REG_CBCR (0x48) /* SMC CIU Byte Count Register */
67#define SDXC_REG_BBCR (0x4C) /* SMC BIU Byte Count Register */
68#define SDXC_REG_DBGC (0x50) /* SMC Debug Enable Register */
69#define SDXC_REG_HWRST (0x78) /* SMC Card Hardware Reset for Register */
70#define SDXC_REG_DMAC (0x80) /* SMC IDMAC Control Register */
71#define SDXC_REG_DLBA (0x84) /* SMC IDMAC Descriptor List Base Addre */
72#define SDXC_REG_IDST (0x88) /* SMC IDMAC Status Register */
73#define SDXC_REG_IDIE (0x8C) /* SMC IDMAC Interrupt Enable Register */
74#define SDXC_REG_CHDA (0x90)
75#define SDXC_REG_CBDA (0x94)
76
77#define mmc_readl(host, reg) \
78 readl((host)->reg_base + SDXC_##reg)
79#define mmc_writel(host, reg, value) \
80 writel((value), (host)->reg_base + SDXC_##reg)
81
82/* global control register bits */
83#define SDXC_SOFT_RESET BIT(0)
84#define SDXC_FIFO_RESET BIT(1)
85#define SDXC_DMA_RESET BIT(2)
86#define SDXC_INTERRUPT_ENABLE_BIT BIT(4)
87#define SDXC_DMA_ENABLE_BIT BIT(5)
88#define SDXC_DEBOUNCE_ENABLE_BIT BIT(8)
89#define SDXC_POSEDGE_LATCH_DATA BIT(9)
90#define SDXC_DDR_MODE BIT(10)
91#define SDXC_MEMORY_ACCESS_DONE BIT(29)
92#define SDXC_ACCESS_DONE_DIRECT BIT(30)
93#define SDXC_ACCESS_BY_AHB BIT(31)
94#define SDXC_ACCESS_BY_DMA (0 << 31)
95#define SDXC_HARDWARE_RESET \
96 (SDXC_SOFT_RESET | SDXC_FIFO_RESET | SDXC_DMA_RESET)
97
98/* clock control bits */
99#define SDXC_CARD_CLOCK_ON BIT(16)
100#define SDXC_LOW_POWER_ON BIT(17)
101
102/* bus width */
103#define SDXC_WIDTH1 0
104#define SDXC_WIDTH4 1
105#define SDXC_WIDTH8 2
106
107/* smc command bits */
108#define SDXC_RESP_EXPIRE BIT(6)
109#define SDXC_LONG_RESPONSE BIT(7)
110#define SDXC_CHECK_RESPONSE_CRC BIT(8)
111#define SDXC_DATA_EXPIRE BIT(9)
112#define SDXC_WRITE BIT(10)
113#define SDXC_SEQUENCE_MODE BIT(11)
114#define SDXC_SEND_AUTO_STOP BIT(12)
115#define SDXC_WAIT_PRE_OVER BIT(13)
116#define SDXC_STOP_ABORT_CMD BIT(14)
117#define SDXC_SEND_INIT_SEQUENCE BIT(15)
118#define SDXC_UPCLK_ONLY BIT(21)
119#define SDXC_READ_CEATA_DEV BIT(22)
120#define SDXC_CCS_EXPIRE BIT(23)
121#define SDXC_ENABLE_BIT_BOOT BIT(24)
122#define SDXC_ALT_BOOT_OPTIONS BIT(25)
123#define SDXC_BOOT_ACK_EXPIRE BIT(26)
124#define SDXC_BOOT_ABORT BIT(27)
125#define SDXC_VOLTAGE_SWITCH BIT(28)
126#define SDXC_USE_HOLD_REGISTER BIT(29)
127#define SDXC_START BIT(31)
128
129/* interrupt bits */
130#define SDXC_RESP_ERROR BIT(1)
131#define SDXC_COMMAND_DONE BIT(2)
132#define SDXC_DATA_OVER BIT(3)
133#define SDXC_TX_DATA_REQUEST BIT(4)
134#define SDXC_RX_DATA_REQUEST BIT(5)
135#define SDXC_RESP_CRC_ERROR BIT(6)
136#define SDXC_DATA_CRC_ERROR BIT(7)
137#define SDXC_RESP_TIMEOUT BIT(8)
138#define SDXC_DATA_TIMEOUT BIT(9)
139#define SDXC_VOLTAGE_CHANGE_DONE BIT(10)
140#define SDXC_FIFO_RUN_ERROR BIT(11)
141#define SDXC_HARD_WARE_LOCKED BIT(12)
142#define SDXC_START_BIT_ERROR BIT(13)
143#define SDXC_AUTO_COMMAND_DONE BIT(14)
144#define SDXC_END_BIT_ERROR BIT(15)
145#define SDXC_SDIO_INTERRUPT BIT(16)
146#define SDXC_CARD_INSERT BIT(30)
147#define SDXC_CARD_REMOVE BIT(31)
148#define SDXC_INTERRUPT_ERROR_BIT \
149 (SDXC_RESP_ERROR | SDXC_RESP_CRC_ERROR | SDXC_DATA_CRC_ERROR | \
150 SDXC_RESP_TIMEOUT | SDXC_DATA_TIMEOUT | SDXC_FIFO_RUN_ERROR | \
151 SDXC_HARD_WARE_LOCKED | SDXC_START_BIT_ERROR | SDXC_END_BIT_ERROR)
152#define SDXC_INTERRUPT_DONE_BIT \
153 (SDXC_AUTO_COMMAND_DONE | SDXC_DATA_OVER | \
154 SDXC_COMMAND_DONE | SDXC_VOLTAGE_CHANGE_DONE)
155
156/* status */
157#define SDXC_RXWL_FLAG BIT(0)
158#define SDXC_TXWL_FLAG BIT(1)
159#define SDXC_FIFO_EMPTY BIT(2)
160#define SDXC_FIFO_FULL BIT(3)
161#define SDXC_CARD_PRESENT BIT(8)
162#define SDXC_CARD_DATA_BUSY BIT(9)
163#define SDXC_DATA_FSM_BUSY BIT(10)
164#define SDXC_DMA_REQUEST BIT(31)
165#define SDXC_FIFO_SIZE 16
166
167/* Function select */
168#define SDXC_CEATA_ON (0xceaa << 16)
169#define SDXC_SEND_IRQ_RESPONSE BIT(0)
170#define SDXC_SDIO_READ_WAIT BIT(1)
171#define SDXC_ABORT_READ_DATA BIT(2)
172#define SDXC_SEND_CCSD BIT(8)
173#define SDXC_SEND_AUTO_STOPCCSD BIT(9)
174#define SDXC_CEATA_DEV_IRQ_ENABLE BIT(10)
175
176/* IDMA controller bus mod bit field */
177#define SDXC_IDMAC_SOFT_RESET BIT(0)
178#define SDXC_IDMAC_FIX_BURST BIT(1)
179#define SDXC_IDMAC_IDMA_ON BIT(7)
180#define SDXC_IDMAC_REFETCH_DES BIT(31)
181
182/* IDMA status bit field */
183#define SDXC_IDMAC_TRANSMIT_INTERRUPT BIT(0)
184#define SDXC_IDMAC_RECEIVE_INTERRUPT BIT(1)
185#define SDXC_IDMAC_FATAL_BUS_ERROR BIT(2)
186#define SDXC_IDMAC_DESTINATION_INVALID BIT(4)
187#define SDXC_IDMAC_CARD_ERROR_SUM BIT(5)
188#define SDXC_IDMAC_NORMAL_INTERRUPT_SUM BIT(8)
189#define SDXC_IDMAC_ABNORMAL_INTERRUPT_SUM BIT(9)
190#define SDXC_IDMAC_HOST_ABORT_INTERRUPT BIT(10)
191#define SDXC_IDMAC_IDLE (0 << 13)
192#define SDXC_IDMAC_SUSPEND (1 << 13)
193#define SDXC_IDMAC_DESC_READ (2 << 13)
194#define SDXC_IDMAC_DESC_CHECK (3 << 13)
195#define SDXC_IDMAC_READ_REQUEST_WAIT (4 << 13)
196#define SDXC_IDMAC_WRITE_REQUEST_WAIT (5 << 13)
197#define SDXC_IDMAC_READ (6 << 13)
198#define SDXC_IDMAC_WRITE (7 << 13)
199#define SDXC_IDMAC_DESC_CLOSE (8 << 13)
200
201/*
202* If the idma-des-size-bits of property is ie 13, bufsize bits are:
203* Bits 0-12: buf1 size
204* Bits 13-25: buf2 size
205* Bits 26-31: not used
206* Since we only ever set buf1 size, we can simply store it directly.
207*/
208#define SDXC_IDMAC_DES0_DIC BIT(1) /* disable interrupt on completion */
209#define SDXC_IDMAC_DES0_LD BIT(2) /* last descriptor */
210#define SDXC_IDMAC_DES0_FD BIT(3) /* first descriptor */
211#define SDXC_IDMAC_DES0_CH BIT(4) /* chain mode */
212#define SDXC_IDMAC_DES0_ER BIT(5) /* end of ring */
213#define SDXC_IDMAC_DES0_CES BIT(30) /* card error summary */
214#define SDXC_IDMAC_DES0_OWN BIT(31) /* 1-idma owns it, 0-host owns it */
215
216struct sunxi_idma_des {
217 u32 config;
218 u32 buf_size;
219 u32 buf_addr_ptr1;
220 u32 buf_addr_ptr2;
221};
222
223struct sunxi_mmc_host {
224 struct mmc_host *mmc;
225 struct reset_control *reset;
226
227 /* IO mapping base */
228 void __iomem *reg_base;
229
230 /* clock management */
231 struct clk *clk_ahb;
232 struct clk *clk_mmc;
233
234 /* irq */
235 spinlock_t lock;
236 int irq;
237 u32 int_sum;
238 u32 sdio_imask;
239
240 /* dma */
241 u32 idma_des_size_bits;
242 dma_addr_t sg_dma;
243 void *sg_cpu;
244 bool wait_dma;
245
246 struct mmc_request *mrq;
247 struct mmc_request *manual_stop_mrq;
248 int ferror;
249};
250
251static int sunxi_mmc_reset_host(struct sunxi_mmc_host *host)
252{
253 unsigned long expire = jiffies + msecs_to_jiffies(250);
254 u32 rval;
255
256 mmc_writel(host, REG_CMDR, SDXC_HARDWARE_RESET);
257 do {
258 rval = mmc_readl(host, REG_GCTRL);
259 } while (time_before(jiffies, expire) && (rval & SDXC_HARDWARE_RESET));
260
261 if (rval & SDXC_HARDWARE_RESET) {
262 dev_err(mmc_dev(host->mmc), "fatal err reset timeout\n");
263 return -EIO;
264 }
265
266 return 0;
267}
268
269static int sunxi_mmc_init_host(struct mmc_host *mmc)
270{
271 u32 rval;
272 struct sunxi_mmc_host *host = mmc_priv(mmc);
273
274 if (sunxi_mmc_reset_host(host))
275 return -EIO;
276
277 mmc_writel(host, REG_FTRGL, 0x20070008);
278 mmc_writel(host, REG_TMOUT, 0xffffffff);
279 mmc_writel(host, REG_IMASK, host->sdio_imask);
280 mmc_writel(host, REG_RINTR, 0xffffffff);
281 mmc_writel(host, REG_DBGC, 0xdeb);
282 mmc_writel(host, REG_FUNS, SDXC_CEATA_ON);
283 mmc_writel(host, REG_DLBA, host->sg_dma);
284
285 rval = mmc_readl(host, REG_GCTRL);
286 rval |= SDXC_INTERRUPT_ENABLE_BIT;
287 rval &= ~SDXC_ACCESS_DONE_DIRECT;
288 mmc_writel(host, REG_GCTRL, rval);
289
290 return 0;
291}
292
293static void sunxi_mmc_init_idma_des(struct sunxi_mmc_host *host,
294 struct mmc_data *data)
295{
296 struct sunxi_idma_des *pdes = (struct sunxi_idma_des *)host->sg_cpu;
297 struct sunxi_idma_des *pdes_pa = (struct sunxi_idma_des *)host->sg_dma;
298 int i, max_len = (1 << host->idma_des_size_bits);
299
300 for (i = 0; i < data->sg_len; i++) {
301 pdes[i].config = SDXC_IDMAC_DES0_CH | SDXC_IDMAC_DES0_OWN |
302 SDXC_IDMAC_DES0_DIC;
303
304 if (data->sg[i].length == max_len)
305 pdes[i].buf_size = 0; /* 0 == max_len */
306 else
307 pdes[i].buf_size = data->sg[i].length;
308
309 pdes[i].buf_addr_ptr1 = sg_dma_address(&data->sg[i]);
310 pdes[i].buf_addr_ptr2 = (u32)&pdes_pa[i + 1];
311 }
312
313 pdes[0].config |= SDXC_IDMAC_DES0_FD;
314 pdes[i - 1].config = SDXC_IDMAC_DES0_OWN | SDXC_IDMAC_DES0_LD;
315
316 /*
317 * Avoid the io-store starting the idmac hitting io-mem before the
318 * descriptors hit the main-mem.
319 */
320 wmb();
321}
322
323static enum dma_data_direction sunxi_mmc_get_dma_dir(struct mmc_data *data)
324{
325 if (data->flags & MMC_DATA_WRITE)
326 return DMA_TO_DEVICE;
327 else
328 return DMA_FROM_DEVICE;
329}
330
331static int sunxi_mmc_map_dma(struct sunxi_mmc_host *host,
332 struct mmc_data *data)
333{
334 u32 i, dma_len;
335 struct scatterlist *sg;
336
337 dma_len = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
338 sunxi_mmc_get_dma_dir(data));
339 if (dma_len == 0) {
340 dev_err(mmc_dev(host->mmc), "dma_map_sg failed\n");
341 return -ENOMEM;
342 }
343
344 for_each_sg(data->sg, sg, data->sg_len, i) {
345 if (sg->offset & 3 || sg->length & 3) {
346 dev_err(mmc_dev(host->mmc),
347 "unaligned scatterlist: os %x length %d\n",
348 sg->offset, sg->length);
349 return -EINVAL;
350 }
351 }
352
353 return 0;
354}
355
356static void sunxi_mmc_start_dma(struct sunxi_mmc_host *host,
357 struct mmc_data *data)
358{
359 u32 rval;
360
361 sunxi_mmc_init_idma_des(host, data);
362
363 rval = mmc_readl(host, REG_GCTRL);
364 rval |= SDXC_DMA_ENABLE_BIT;
365 mmc_writel(host, REG_GCTRL, rval);
366 rval |= SDXC_DMA_RESET;
367 mmc_writel(host, REG_GCTRL, rval);
368
369 mmc_writel(host, REG_DMAC, SDXC_IDMAC_SOFT_RESET);
370
371 if (!(data->flags & MMC_DATA_WRITE))
372 mmc_writel(host, REG_IDIE, SDXC_IDMAC_RECEIVE_INTERRUPT);
373
374 mmc_writel(host, REG_DMAC,
375 SDXC_IDMAC_FIX_BURST | SDXC_IDMAC_IDMA_ON);
376}
377
378static void sunxi_mmc_send_manual_stop(struct sunxi_mmc_host *host,
379 struct mmc_request *req)
380{
381 u32 arg, cmd_val, ri;
382 unsigned long expire = jiffies + msecs_to_jiffies(1000);
383
384 cmd_val = SDXC_START | SDXC_RESP_EXPIRE |
385 SDXC_STOP_ABORT_CMD | SDXC_CHECK_RESPONSE_CRC;
386
387 if (req->cmd->opcode == SD_IO_RW_EXTENDED) {
388 cmd_val |= SD_IO_RW_DIRECT;
389 arg = (1 << 31) | (0 << 28) | (SDIO_CCCR_ABORT << 9) |
390 ((req->cmd->arg >> 28) & 0x7);
391 } else {
392 cmd_val |= MMC_STOP_TRANSMISSION;
393 arg = 0;
394 }
395
396 mmc_writel(host, REG_CARG, arg);
397 mmc_writel(host, REG_CMDR, cmd_val);
398
399 do {
400 ri = mmc_readl(host, REG_RINTR);
401 } while (!(ri & (SDXC_COMMAND_DONE | SDXC_INTERRUPT_ERROR_BIT)) &&
402 time_before(jiffies, expire));
403
404 if (!(ri & SDXC_COMMAND_DONE) || (ri & SDXC_INTERRUPT_ERROR_BIT)) {
405 dev_err(mmc_dev(host->mmc), "send stop command failed\n");
406 if (req->stop)
407 req->stop->resp[0] = -ETIMEDOUT;
408 } else {
409 if (req->stop)
410 req->stop->resp[0] = mmc_readl(host, REG_RESP0);
411 }
412
413 mmc_writel(host, REG_RINTR, 0xffff);
414}
415
416static void sunxi_mmc_dump_errinfo(struct sunxi_mmc_host *host)
417{
418 struct mmc_command *cmd = host->mrq->cmd;
419 struct mmc_data *data = host->mrq->data;
420
421 /* For some cmds timeout is normal with sd/mmc cards */
422 if ((host->int_sum & SDXC_INTERRUPT_ERROR_BIT) ==
423 SDXC_RESP_TIMEOUT && (cmd->opcode == SD_IO_SEND_OP_COND ||
424 cmd->opcode == SD_IO_RW_DIRECT))
425 return;
426
427 dev_err(mmc_dev(host->mmc),
428 "smc %d err, cmd %d,%s%s%s%s%s%s%s%s%s%s !!\n",
429 host->mmc->index, cmd->opcode,
430 data ? (data->flags & MMC_DATA_WRITE ? " WR" : " RD") : "",
431 host->int_sum & SDXC_RESP_ERROR ? " RE" : "",
432 host->int_sum & SDXC_RESP_CRC_ERROR ? " RCE" : "",
433 host->int_sum & SDXC_DATA_CRC_ERROR ? " DCE" : "",
434 host->int_sum & SDXC_RESP_TIMEOUT ? " RTO" : "",
435 host->int_sum & SDXC_DATA_TIMEOUT ? " DTO" : "",
436 host->int_sum & SDXC_FIFO_RUN_ERROR ? " FE" : "",
437 host->int_sum & SDXC_HARD_WARE_LOCKED ? " HL" : "",
438 host->int_sum & SDXC_START_BIT_ERROR ? " SBE" : "",
439 host->int_sum & SDXC_END_BIT_ERROR ? " EBE" : ""
440 );
441}
442
443/* Called in interrupt context! */
444static irqreturn_t sunxi_mmc_finalize_request(struct sunxi_mmc_host *host)
445{
446 struct mmc_request *mrq = host->mrq;
447 struct mmc_data *data = mrq->data;
448 u32 rval;
449
450 mmc_writel(host, REG_IMASK, host->sdio_imask);
451 mmc_writel(host, REG_IDIE, 0);
452
453 if (host->int_sum & SDXC_INTERRUPT_ERROR_BIT) {
454 sunxi_mmc_dump_errinfo(host);
455 mrq->cmd->error = -ETIMEDOUT;
456
457 if (data) {
458 data->error = -ETIMEDOUT;
459 host->manual_stop_mrq = mrq;
460 }
461
462 if (mrq->stop)
463 mrq->stop->error = -ETIMEDOUT;
464 } else {
465 if (mrq->cmd->flags & MMC_RSP_136) {
466 mrq->cmd->resp[0] = mmc_readl(host, REG_RESP3);
467 mrq->cmd->resp[1] = mmc_readl(host, REG_RESP2);
468 mrq->cmd->resp[2] = mmc_readl(host, REG_RESP1);
469 mrq->cmd->resp[3] = mmc_readl(host, REG_RESP0);
470 } else {
471 mrq->cmd->resp[0] = mmc_readl(host, REG_RESP0);
472 }
473
474 if (data)
475 data->bytes_xfered = data->blocks * data->blksz;
476 }
477
478 if (data) {
479 mmc_writel(host, REG_IDST, 0x337);
480 mmc_writel(host, REG_DMAC, 0);
481 rval = mmc_readl(host, REG_GCTRL);
482 rval |= SDXC_DMA_RESET;
483 mmc_writel(host, REG_GCTRL, rval);
484 rval &= ~SDXC_DMA_ENABLE_BIT;
485 mmc_writel(host, REG_GCTRL, rval);
486 rval |= SDXC_FIFO_RESET;
487 mmc_writel(host, REG_GCTRL, rval);
488 dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,
489 sunxi_mmc_get_dma_dir(data));
490 }
491
492 mmc_writel(host, REG_RINTR, 0xffff);
493
494 host->mrq = NULL;
495 host->int_sum = 0;
496 host->wait_dma = false;
497
498 return host->manual_stop_mrq ? IRQ_WAKE_THREAD : IRQ_HANDLED;
499}
500
501static irqreturn_t sunxi_mmc_irq(int irq, void *dev_id)
502{
503 struct sunxi_mmc_host *host = dev_id;
504 struct mmc_request *mrq;
505 u32 msk_int, idma_int;
506 bool finalize = false;
507 bool sdio_int = false;
508 irqreturn_t ret = IRQ_HANDLED;
509
510 spin_lock(&host->lock);
511
512 idma_int = mmc_readl(host, REG_IDST);
513 msk_int = mmc_readl(host, REG_MISTA);
514
515 dev_dbg(mmc_dev(host->mmc), "irq: rq %p mi %08x idi %08x\n",
516 host->mrq, msk_int, idma_int);
517
518 mrq = host->mrq;
519 if (mrq) {
520 if (idma_int & SDXC_IDMAC_RECEIVE_INTERRUPT)
521 host->wait_dma = false;
522
523 host->int_sum |= msk_int;
524
525 /* Wait for COMMAND_DONE on RESPONSE_TIMEOUT before finalize */
526 if ((host->int_sum & SDXC_RESP_TIMEOUT) &&
527 !(host->int_sum & SDXC_COMMAND_DONE))
528 mmc_writel(host, REG_IMASK,
529 host->sdio_imask | SDXC_COMMAND_DONE);
530 /* Don't wait for dma on error */
531 else if (host->int_sum & SDXC_INTERRUPT_ERROR_BIT)
532 finalize = true;
533 else if ((host->int_sum & SDXC_INTERRUPT_DONE_BIT) &&
534 !host->wait_dma)
535 finalize = true;
536 }
537
538 if (msk_int & SDXC_SDIO_INTERRUPT)
539 sdio_int = true;
540
541 mmc_writel(host, REG_RINTR, msk_int);
542 mmc_writel(host, REG_IDST, idma_int);
543
544 if (finalize)
545 ret = sunxi_mmc_finalize_request(host);
546
547 spin_unlock(&host->lock);
548
549 if (finalize && ret == IRQ_HANDLED)
550 mmc_request_done(host->mmc, mrq);
551
552 if (sdio_int)
553 mmc_signal_sdio_irq(host->mmc);
554
555 return ret;
556}
557
558static irqreturn_t sunxi_mmc_handle_manual_stop(int irq, void *dev_id)
559{
560 struct sunxi_mmc_host *host = dev_id;
561 struct mmc_request *mrq;
562 unsigned long iflags;
563
564 spin_lock_irqsave(&host->lock, iflags);
565 mrq = host->manual_stop_mrq;
566 spin_unlock_irqrestore(&host->lock, iflags);
567
568 if (!mrq) {
569 dev_err(mmc_dev(host->mmc), "no request for manual stop\n");
570 return IRQ_HANDLED;
571 }
572
573 dev_err(mmc_dev(host->mmc), "data error, sending stop command\n");
574 sunxi_mmc_send_manual_stop(host, mrq);
575
576 spin_lock_irqsave(&host->lock, iflags);
577 host->manual_stop_mrq = NULL;
578 spin_unlock_irqrestore(&host->lock, iflags);
579
580 mmc_request_done(host->mmc, mrq);
581
582 return IRQ_HANDLED;
583}
584
585static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32 oclk_en)
586{
587 unsigned long expire = jiffies + msecs_to_jiffies(250);
588 u32 rval;
589
590 rval = mmc_readl(host, REG_CLKCR);
591 rval &= ~(SDXC_CARD_CLOCK_ON | SDXC_LOW_POWER_ON);
592
593 if (oclk_en)
594 rval |= SDXC_CARD_CLOCK_ON;
595
596 mmc_writel(host, REG_CLKCR, rval);
597
598 rval = SDXC_START | SDXC_UPCLK_ONLY | SDXC_WAIT_PRE_OVER;
599 mmc_writel(host, REG_CMDR, rval);
600
601 do {
602 rval = mmc_readl(host, REG_CMDR);
603 } while (time_before(jiffies, expire) && (rval & SDXC_START));
604
605 /* clear irq status bits set by the command */
606 mmc_writel(host, REG_RINTR,
607 mmc_readl(host, REG_RINTR) & ~SDXC_SDIO_INTERRUPT);
608
609 if (rval & SDXC_START) {
610 dev_err(mmc_dev(host->mmc), "fatal err update clk timeout\n");
611 return -EIO;
612 }
613
614 return 0;
615}
616
617static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host,
618 struct mmc_ios *ios)
619{
620 u32 rate, oclk_dly, rval, sclk_dly, src_clk;
621 int ret;
622
623 rate = clk_round_rate(host->clk_mmc, ios->clock);
624 dev_dbg(mmc_dev(host->mmc), "setting clk to %d, rounded %d\n",
625 ios->clock, rate);
626
627 /* setting clock rate */
628 ret = clk_set_rate(host->clk_mmc, rate);
629 if (ret) {
630 dev_err(mmc_dev(host->mmc), "error setting clk to %d: %d\n",
631 rate, ret);
632 return ret;
633 }
634
635 ret = sunxi_mmc_oclk_onoff(host, 0);
636 if (ret)
637 return ret;
638
639 /* clear internal divider */
640 rval = mmc_readl(host, REG_CLKCR);
641 rval &= ~0xff;
642 mmc_writel(host, REG_CLKCR, rval);
643
644 /* determine delays */
645 if (rate <= 400000) {
646 oclk_dly = 0;
647 sclk_dly = 7;
648 } else if (rate <= 25000000) {
649 oclk_dly = 0;
650 sclk_dly = 5;
651 } else if (rate <= 50000000) {
652 if (ios->timing == MMC_TIMING_UHS_DDR50) {
653 oclk_dly = 2;
654 sclk_dly = 4;
655 } else {
656 oclk_dly = 3;
657 sclk_dly = 5;
658 }
659 } else {
660 /* rate > 50000000 */
661 oclk_dly = 2;
662 sclk_dly = 4;
663 }
664
665 src_clk = clk_get_rate(clk_get_parent(host->clk_mmc));
666 if (src_clk >= 300000000 && src_clk <= 400000000) {
667 if (oclk_dly)
668 oclk_dly--;
669 if (sclk_dly)
670 sclk_dly--;
671 }
672
673 clk_sunxi_mmc_phase_control(host->clk_mmc, sclk_dly, oclk_dly);
674
675 return sunxi_mmc_oclk_onoff(host, 1);
676}
677
678static void sunxi_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
679{
680 struct sunxi_mmc_host *host = mmc_priv(mmc);
681 u32 rval;
682
683 /* Set the power state */
684 switch (ios->power_mode) {
685 case MMC_POWER_ON:
686 break;
687
688 case MMC_POWER_UP:
689 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
690
691 host->ferror = sunxi_mmc_init_host(mmc);
692 if (host->ferror)
693 return;
694
695 dev_dbg(mmc_dev(mmc), "power on!\n");
696 break;
697
698 case MMC_POWER_OFF:
699 dev_dbg(mmc_dev(mmc), "power off!\n");
700 sunxi_mmc_reset_host(host);
701 mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
702 break;
703 }
704
705 /* set bus width */
706 switch (ios->bus_width) {
707 case MMC_BUS_WIDTH_1:
708 mmc_writel(host, REG_WIDTH, SDXC_WIDTH1);
709 break;
710 case MMC_BUS_WIDTH_4:
711 mmc_writel(host, REG_WIDTH, SDXC_WIDTH4);
712 break;
713 case MMC_BUS_WIDTH_8:
714 mmc_writel(host, REG_WIDTH, SDXC_WIDTH8);
715 break;
716 }
717
718 /* set ddr mode */
719 rval = mmc_readl(host, REG_GCTRL);
720 if (ios->timing == MMC_TIMING_UHS_DDR50)
721 rval |= SDXC_DDR_MODE;
722 else
723 rval &= ~SDXC_DDR_MODE;
724 mmc_writel(host, REG_GCTRL, rval);
725
726 /* set up clock */
727 if (ios->clock && ios->power_mode) {
728 host->ferror = sunxi_mmc_clk_set_rate(host, ios);
729 /* Android code had a usleep_range(50000, 55000); here */
730 }
731}
732
733static void sunxi_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
734{
735 struct sunxi_mmc_host *host = mmc_priv(mmc);
736 unsigned long flags;
737 u32 imask;
738
739 spin_lock_irqsave(&host->lock, flags);
740
741 imask = mmc_readl(host, REG_IMASK);
742 if (enable) {
743 host->sdio_imask = SDXC_SDIO_INTERRUPT;
744 imask |= SDXC_SDIO_INTERRUPT;
745 } else {
746 host->sdio_imask = 0;
747 imask &= ~SDXC_SDIO_INTERRUPT;
748 }
749 mmc_writel(host, REG_IMASK, imask);
750 spin_unlock_irqrestore(&host->lock, flags);
751}
752
753static void sunxi_mmc_hw_reset(struct mmc_host *mmc)
754{
755 struct sunxi_mmc_host *host = mmc_priv(mmc);
756 mmc_writel(host, REG_HWRST, 0);
757 udelay(10);
758 mmc_writel(host, REG_HWRST, 1);
759 udelay(300);
760}
761
762static void sunxi_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
763{
764 struct sunxi_mmc_host *host = mmc_priv(mmc);
765 struct mmc_command *cmd = mrq->cmd;
766 struct mmc_data *data = mrq->data;
767 unsigned long iflags;
768 u32 imask = SDXC_INTERRUPT_ERROR_BIT;
769 u32 cmd_val = SDXC_START | (cmd->opcode & 0x3f);
770 int ret;
771
772 /* Check for set_ios errors (should never happen) */
773 if (host->ferror) {
774 mrq->cmd->error = host->ferror;
775 mmc_request_done(mmc, mrq);
776 return;
777 }
778
779 if (data) {
780 ret = sunxi_mmc_map_dma(host, data);
781 if (ret < 0) {
782 dev_err(mmc_dev(mmc), "map DMA failed\n");
783 cmd->error = ret;
784 data->error = ret;
785 mmc_request_done(mmc, mrq);
786 return;
787 }
788 }
789
790 if (cmd->opcode == MMC_GO_IDLE_STATE) {
791 cmd_val |= SDXC_SEND_INIT_SEQUENCE;
792 imask |= SDXC_COMMAND_DONE;
793 }
794
795 if (cmd->flags & MMC_RSP_PRESENT) {
796 cmd_val |= SDXC_RESP_EXPIRE;
797 if (cmd->flags & MMC_RSP_136)
798 cmd_val |= SDXC_LONG_RESPONSE;
799 if (cmd->flags & MMC_RSP_CRC)
800 cmd_val |= SDXC_CHECK_RESPONSE_CRC;
801
802 if ((cmd->flags & MMC_CMD_MASK) == MMC_CMD_ADTC) {
803 cmd_val |= SDXC_DATA_EXPIRE | SDXC_WAIT_PRE_OVER;
804 if (cmd->data->flags & MMC_DATA_STREAM) {
805 imask |= SDXC_AUTO_COMMAND_DONE;
806 cmd_val |= SDXC_SEQUENCE_MODE |
807 SDXC_SEND_AUTO_STOP;
808 }
809
810 if (cmd->data->stop) {
811 imask |= SDXC_AUTO_COMMAND_DONE;
812 cmd_val |= SDXC_SEND_AUTO_STOP;
813 } else {
814 imask |= SDXC_DATA_OVER;
815 }
816
817 if (cmd->data->flags & MMC_DATA_WRITE)
818 cmd_val |= SDXC_WRITE;
819 else
820 host->wait_dma = true;
821 } else {
822 imask |= SDXC_COMMAND_DONE;
823 }
824 } else {
825 imask |= SDXC_COMMAND_DONE;
826 }
827
828 dev_dbg(mmc_dev(mmc), "cmd %d(%08x) arg %x ie 0x%08x len %d\n",
829 cmd_val & 0x3f, cmd_val, cmd->arg, imask,
830 mrq->data ? mrq->data->blksz * mrq->data->blocks : 0);
831
832 spin_lock_irqsave(&host->lock, iflags);
833
834 if (host->mrq || host->manual_stop_mrq) {
835 spin_unlock_irqrestore(&host->lock, iflags);
836
837 if (data)
838 dma_unmap_sg(mmc_dev(mmc), data->sg, data->sg_len,
839 sunxi_mmc_get_dma_dir(data));
840
841 dev_err(mmc_dev(mmc), "request already pending\n");
842 mrq->cmd->error = -EBUSY;
843 mmc_request_done(mmc, mrq);
844 return;
845 }
846
847 if (data) {
848 mmc_writel(host, REG_BLKSZ, data->blksz);
849 mmc_writel(host, REG_BCNTR, data->blksz * data->blocks);
850 sunxi_mmc_start_dma(host, data);
851 }
852
853 host->mrq = mrq;
854 mmc_writel(host, REG_IMASK, host->sdio_imask | imask);
855 mmc_writel(host, REG_CARG, cmd->arg);
856 mmc_writel(host, REG_CMDR, cmd_val);
857
858 spin_unlock_irqrestore(&host->lock, iflags);
859}
860
861static const struct of_device_id sunxi_mmc_of_match[] = {
862 { .compatible = "allwinner,sun4i-a10-mmc", },
863 { .compatible = "allwinner,sun5i-a13-mmc", },
864 { /* sentinel */ }
865};
866MODULE_DEVICE_TABLE(of, sunxi_mmc_of_match);
867
868static struct mmc_host_ops sunxi_mmc_ops = {
869 .request = sunxi_mmc_request,
870 .set_ios = sunxi_mmc_set_ios,
871 .get_ro = mmc_gpio_get_ro,
872 .get_cd = mmc_gpio_get_cd,
873 .enable_sdio_irq = sunxi_mmc_enable_sdio_irq,
874 .hw_reset = sunxi_mmc_hw_reset,
875};
876
877static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
878 struct platform_device *pdev)
879{
880 struct device_node *np = pdev->dev.of_node;
881 int ret;
882
883 if (of_device_is_compatible(np, "allwinner,sun4i-a10-mmc"))
884 host->idma_des_size_bits = 13;
885 else
886 host->idma_des_size_bits = 16;
887
888 ret = mmc_regulator_get_supply(host->mmc);
889 if (ret) {
890 if (ret != -EPROBE_DEFER)
891 dev_err(&pdev->dev, "Could not get vmmc supply\n");
892 return ret;
893 }
894
895 host->reg_base = devm_ioremap_resource(&pdev->dev,
896 platform_get_resource(pdev, IORESOURCE_MEM, 0));
897 if (IS_ERR(host->reg_base))
898 return PTR_ERR(host->reg_base);
899
900 host->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
901 if (IS_ERR(host->clk_ahb)) {
902 dev_err(&pdev->dev, "Could not get ahb clock\n");
903 return PTR_ERR(host->clk_ahb);
904 }
905
906 host->clk_mmc = devm_clk_get(&pdev->dev, "mmc");
907 if (IS_ERR(host->clk_mmc)) {
908 dev_err(&pdev->dev, "Could not get mmc clock\n");
909 return PTR_ERR(host->clk_mmc);
910 }
911
912 host->reset = devm_reset_control_get(&pdev->dev, "ahb");
913
914 ret = clk_prepare_enable(host->clk_ahb);
915 if (ret) {
916 dev_err(&pdev->dev, "Enable ahb clk err %d\n", ret);
917 return ret;
918 }
919
920 ret = clk_prepare_enable(host->clk_mmc);
921 if (ret) {
922 dev_err(&pdev->dev, "Enable mmc clk err %d\n", ret);
923 goto error_disable_clk_ahb;
924 }
925
926 if (!IS_ERR(host->reset)) {
927 ret = reset_control_deassert(host->reset);
928 if (ret) {
929 dev_err(&pdev->dev, "reset err %d\n", ret);
930 goto error_disable_clk_mmc;
931 }
932 }
933
934 /*
935 * Sometimes the controller asserts the irq on boot for some reason,
936 * make sure the controller is in a sane state before enabling irqs.
937 */
938 ret = sunxi_mmc_reset_host(host);
939 if (ret)
940 goto error_assert_reset;
941
942 host->irq = platform_get_irq(pdev, 0);
943 return devm_request_threaded_irq(&pdev->dev, host->irq, sunxi_mmc_irq,
944 sunxi_mmc_handle_manual_stop, 0, "sunxi-mmc", host);
945
946error_assert_reset:
947 if (!IS_ERR(host->reset))
948 reset_control_assert(host->reset);
949error_disable_clk_mmc:
950 clk_disable_unprepare(host->clk_mmc);
951error_disable_clk_ahb:
952 clk_disable_unprepare(host->clk_ahb);
953 return ret;
954}
955
956static int sunxi_mmc_probe(struct platform_device *pdev)
957{
958 struct sunxi_mmc_host *host;
959 struct mmc_host *mmc;
960 int ret;
961
962 mmc = mmc_alloc_host(sizeof(struct sunxi_mmc_host), &pdev->dev);
963 if (!mmc) {
964 dev_err(&pdev->dev, "mmc alloc host failed\n");
965 return -ENOMEM;
966 }
967
968 host = mmc_priv(mmc);
969 host->mmc = mmc;
970 spin_lock_init(&host->lock);
971
972 ret = sunxi_mmc_resource_request(host, pdev);
973 if (ret)
974 goto error_free_host;
975
976 host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE,
977 &host->sg_dma, GFP_KERNEL);
978 if (!host->sg_cpu) {
979 dev_err(&pdev->dev, "Failed to allocate DMA descriptor mem\n");
980 ret = -ENOMEM;
981 goto error_free_host;
982 }
983
984 mmc->ops = &sunxi_mmc_ops;
985 mmc->max_blk_count = 8192;
986 mmc->max_blk_size = 4096;
987 mmc->max_segs = PAGE_SIZE / sizeof(struct sunxi_idma_des);
988 mmc->max_seg_size = (1 << host->idma_des_size_bits);
989 mmc->max_req_size = mmc->max_seg_size * mmc->max_segs;
990 /* 400kHz ~ 50MHz */
991 mmc->f_min = 400000;
992 mmc->f_max = 50000000;
993 mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED;
994
995 ret = mmc_of_parse(mmc);
996 if (ret)
997 goto error_free_dma;
998
999 ret = mmc_add_host(mmc);
1000 if (ret)
1001 goto error_free_dma;
1002
1003 dev_info(&pdev->dev, "base:0x%p irq:%u\n", host->reg_base, host->irq);
1004 platform_set_drvdata(pdev, mmc);
1005 return 0;
1006
1007error_free_dma:
1008 dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
1009error_free_host:
1010 mmc_free_host(mmc);
1011 return ret;
1012}
1013
1014static int sunxi_mmc_remove(struct platform_device *pdev)
1015{
1016 struct mmc_host *mmc = platform_get_drvdata(pdev);
1017 struct sunxi_mmc_host *host = mmc_priv(mmc);
1018
1019 mmc_remove_host(mmc);
1020 disable_irq(host->irq);
1021 sunxi_mmc_reset_host(host);
1022
1023 if (!IS_ERR(host->reset))
1024 reset_control_assert(host->reset);
1025
1026 clk_disable_unprepare(host->clk_mmc);
1027 clk_disable_unprepare(host->clk_ahb);
1028
1029 dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
1030 mmc_free_host(mmc);
1031
1032 return 0;
1033}
1034
1035static struct platform_driver sunxi_mmc_driver = {
1036 .driver = {
1037 .name = "sunxi-mmc",
1038 .owner = THIS_MODULE,
1039 .of_match_table = of_match_ptr(sunxi_mmc_of_match),
1040 },
1041 .probe = sunxi_mmc_probe,
1042 .remove = sunxi_mmc_remove,
1043};
1044module_platform_driver(sunxi_mmc_driver);
1045
1046MODULE_DESCRIPTION("Allwinner's SD/MMC Card Controller Driver");
1047MODULE_LICENSE("GPL v2");
1048MODULE_AUTHOR("David Lanzend�rfer <david.lanzendoerfer@o2s.ch>");
1049MODULE_ALIAS("platform:sunxi-mmc");
diff --git a/include/dt-bindings/clock/bcm21664.h b/include/dt-bindings/clock/bcm21664.h
new file mode 100644
index 000000000000..5a7f0e4750a8
--- /dev/null
+++ b/include/dt-bindings/clock/bcm21664.h
@@ -0,0 +1,62 @@
1/*
2 * Copyright (C) 2013 Broadcom Corporation
3 * Copyright 2013 Linaro Limited
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation version 2.
8 *
9 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
10 * kind, whether express or implied; without even the implied warranty
11 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#ifndef _CLOCK_BCM21664_H
16#define _CLOCK_BCM21664_H
17
18/*
19 * This file defines the values used to specify clocks provided by
20 * the clock control units (CCUs) on Broadcom BCM21664 family SoCs.
21 */
22
23/* bcm21664 CCU device tree "compatible" strings */
24#define BCM21664_DT_ROOT_CCU_COMPAT "brcm,bcm21664-root-ccu"
25#define BCM21664_DT_AON_CCU_COMPAT "brcm,bcm21664-aon-ccu"
26#define BCM21664_DT_MASTER_CCU_COMPAT "brcm,bcm21664-master-ccu"
27#define BCM21664_DT_SLAVE_CCU_COMPAT "brcm,bcm21664-slave-ccu"
28
29/* root CCU clock ids */
30
31#define BCM21664_ROOT_CCU_FRAC_1M 0
32#define BCM21664_ROOT_CCU_CLOCK_COUNT 1
33
34/* aon CCU clock ids */
35
36#define BCM21664_AON_CCU_HUB_TIMER 0
37#define BCM21664_AON_CCU_CLOCK_COUNT 1
38
39/* master CCU clock ids */
40
41#define BCM21664_MASTER_CCU_SDIO1 0
42#define BCM21664_MASTER_CCU_SDIO2 1
43#define BCM21664_MASTER_CCU_SDIO3 2
44#define BCM21664_MASTER_CCU_SDIO4 3
45#define BCM21664_MASTER_CCU_SDIO1_SLEEP 4
46#define BCM21664_MASTER_CCU_SDIO2_SLEEP 5
47#define BCM21664_MASTER_CCU_SDIO3_SLEEP 6
48#define BCM21664_MASTER_CCU_SDIO4_SLEEP 7
49#define BCM21664_MASTER_CCU_CLOCK_COUNT 8
50
51/* slave CCU clock ids */
52
53#define BCM21664_SLAVE_CCU_UARTB 0
54#define BCM21664_SLAVE_CCU_UARTB2 1
55#define BCM21664_SLAVE_CCU_UARTB3 2
56#define BCM21664_SLAVE_CCU_BSC1 3
57#define BCM21664_SLAVE_CCU_BSC2 4
58#define BCM21664_SLAVE_CCU_BSC3 5
59#define BCM21664_SLAVE_CCU_BSC4 6
60#define BCM21664_SLAVE_CCU_CLOCK_COUNT 7
61
62#endif /* _CLOCK_BCM21664_H */
diff --git a/include/dt-bindings/clock/bcm281xx.h b/include/dt-bindings/clock/bcm281xx.h
index e0096940886d..a763460cf1af 100644
--- a/include/dt-bindings/clock/bcm281xx.h
+++ b/include/dt-bindings/clock/bcm281xx.h
@@ -20,6 +20,18 @@
20 * the clock control units (CCUs) on Broadcom BCM281XX family SoCs. 20 * the clock control units (CCUs) on Broadcom BCM281XX family SoCs.
21 */ 21 */
22 22
23/*
24 * These are the bcm281xx CCU device tree "compatible" strings.
25 * We're stuck with using "bcm11351" in the string because wild
26 * cards aren't allowed, and that name was the first one defined
27 * in this family of devices.
28 */
29#define BCM281XX_DT_ROOT_CCU_COMPAT "brcm,bcm11351-root-ccu"
30#define BCM281XX_DT_AON_CCU_COMPAT "brcm,bcm11351-aon-ccu"
31#define BCM281XX_DT_HUB_CCU_COMPAT "brcm,bcm11351-hub-ccu"
32#define BCM281XX_DT_MASTER_CCU_COMPAT "brcm,bcm11351-master-ccu"
33#define BCM281XX_DT_SLAVE_CCU_COMPAT "brcm,bcm11351-slave-ccu"
34
23/* root CCU clock ids */ 35/* root CCU clock ids */
24 36
25#define BCM281XX_ROOT_CCU_FRAC_1M 0 37#define BCM281XX_ROOT_CCU_FRAC_1M 0
diff --git a/include/dt-bindings/clock/hix5hd2-clock.h b/include/dt-bindings/clock/hix5hd2-clock.h
new file mode 100644
index 000000000000..aad579a75802
--- /dev/null
+++ b/include/dt-bindings/clock/hix5hd2-clock.h
@@ -0,0 +1,58 @@
1/*
2 * Copyright (c) 2014 Linaro Ltd.
3 * Copyright (c) 2014 Hisilicon Limited.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 */
9
10#ifndef __DTS_HIX5HD2_CLOCK_H
11#define __DTS_HIX5HD2_CLOCK_H
12
13/* fixed rate */
14#define HIX5HD2_FIXED_1200M 1
15#define HIX5HD2_FIXED_400M 2
16#define HIX5HD2_FIXED_48M 3
17#define HIX5HD2_FIXED_24M 4
18#define HIX5HD2_FIXED_600M 5
19#define HIX5HD2_FIXED_300M 6
20#define HIX5HD2_FIXED_75M 7
21#define HIX5HD2_FIXED_200M 8
22#define HIX5HD2_FIXED_100M 9
23#define HIX5HD2_FIXED_40M 10
24#define HIX5HD2_FIXED_150M 11
25#define HIX5HD2_FIXED_1728M 12
26#define HIX5HD2_FIXED_28P8M 13
27#define HIX5HD2_FIXED_432M 14
28#define HIX5HD2_FIXED_345P6M 15
29#define HIX5HD2_FIXED_288M 16
30#define HIX5HD2_FIXED_60M 17
31#define HIX5HD2_FIXED_750M 18
32#define HIX5HD2_FIXED_500M 19
33#define HIX5HD2_FIXED_54M 20
34#define HIX5HD2_FIXED_27M 21
35#define HIX5HD2_FIXED_1500M 22
36#define HIX5HD2_FIXED_375M 23
37#define HIX5HD2_FIXED_187M 24
38#define HIX5HD2_FIXED_250M 25
39#define HIX5HD2_FIXED_125M 26
40#define HIX5HD2_FIXED_2P02M 27
41#define HIX5HD2_FIXED_50M 28
42#define HIX5HD2_FIXED_25M 29
43#define HIX5HD2_FIXED_83M 30
44
45/* mux clocks */
46#define HIX5HD2_SFC_MUX 64
47#define HIX5HD2_MMC_MUX 65
48#define HIX5HD2_FEPHY_MUX 66
49
50/* gate clocks */
51#define HIX5HD2_SFC_RST 128
52#define HIX5HD2_SFC_CLK 129
53#define HIX5HD2_MMC_CIU_CLK 130
54#define HIX5HD2_MMC_BIU_CLK 131
55#define HIX5HD2_MMC_CIU_RST 132
56
57#define HIX5HD2_NR_CLKS 256
58#endif /* __DTS_HIX5HD2_CLOCK_H */
diff --git a/include/dt-bindings/clock/qcom,gcc-msm8960.h b/include/dt-bindings/clock/qcom,gcc-msm8960.h
index 03bbf49d43b7..f9f547146a15 100644
--- a/include/dt-bindings/clock/qcom,gcc-msm8960.h
+++ b/include/dt-bindings/clock/qcom,gcc-msm8960.h
@@ -51,7 +51,7 @@
51#define QDSS_TSCTR_CLK 34 51#define QDSS_TSCTR_CLK 34
52#define SFAB_ADM0_M0_A_CLK 35 52#define SFAB_ADM0_M0_A_CLK 35
53#define SFAB_ADM0_M1_A_CLK 36 53#define SFAB_ADM0_M1_A_CLK 36
54#define SFAB_ADM0_M2_A_CLK 37 54#define SFAB_ADM0_M2_H_CLK 37
55#define ADM0_CLK 38 55#define ADM0_CLK 38
56#define ADM0_PBUS_CLK 39 56#define ADM0_PBUS_CLK 39
57#define MSS_XPU_CLK 40 57#define MSS_XPU_CLK 40
@@ -99,7 +99,7 @@
99#define CFPB2_H_CLK 82 99#define CFPB2_H_CLK 82
100#define SFAB_CFPB_M_H_CLK 83 100#define SFAB_CFPB_M_H_CLK 83
101#define CFPB_MASTER_H_CLK 84 101#define CFPB_MASTER_H_CLK 84
102#define SFAB_CFPB_S_HCLK 85 102#define SFAB_CFPB_S_H_CLK 85
103#define CFPB_SPLITTER_H_CLK 86 103#define CFPB_SPLITTER_H_CLK 86
104#define TSIF_H_CLK 87 104#define TSIF_H_CLK 87
105#define TSIF_INACTIVITY_TIMERS_CLK 88 105#define TSIF_INACTIVITY_TIMERS_CLK 88
@@ -110,7 +110,6 @@
110#define CE1_SLEEP_CLK 93 110#define CE1_SLEEP_CLK 93
111#define CE2_H_CLK 94 111#define CE2_H_CLK 94
112#define CE2_CORE_CLK 95 112#define CE2_CORE_CLK 95
113#define CE2_SLEEP_CLK 96
114#define SFPB_H_CLK_SRC 97 113#define SFPB_H_CLK_SRC 97
115#define SFPB_H_CLK 98 114#define SFPB_H_CLK 98
116#define SFAB_SFPB_M_H_CLK 99 115#define SFAB_SFPB_M_H_CLK 99
@@ -252,7 +251,7 @@
252#define MSS_S_H_CLK 235 251#define MSS_S_H_CLK 235
253#define MSS_CXO_SRC_CLK 236 252#define MSS_CXO_SRC_CLK 236
254#define SATA_H_CLK 237 253#define SATA_H_CLK 237
255#define SATA_SRC_CLK 238 254#define SATA_CLK_SRC 238
256#define SATA_RXOOB_CLK 239 255#define SATA_RXOOB_CLK 239
257#define SATA_PMALIVE_CLK 240 256#define SATA_PMALIVE_CLK 240
258#define SATA_PHY_REF_CLK 241 257#define SATA_PHY_REF_CLK 241
diff --git a/include/dt-bindings/clock/qcom,gcc-msm8974.h b/include/dt-bindings/clock/qcom,gcc-msm8974.h
index 223ca174d9d3..51e51c860fe6 100644
--- a/include/dt-bindings/clock/qcom,gcc-msm8974.h
+++ b/include/dt-bindings/clock/qcom,gcc-msm8974.h
@@ -316,5 +316,9 @@
316#define GCC_CE2_CLK_SLEEP_ENA 299 316#define GCC_CE2_CLK_SLEEP_ENA 299
317#define GCC_CE2_AXI_CLK_SLEEP_ENA 300 317#define GCC_CE2_AXI_CLK_SLEEP_ENA 300
318#define GCC_CE2_AHB_CLK_SLEEP_ENA 301 318#define GCC_CE2_AHB_CLK_SLEEP_ENA 301
319#define GPLL4 302
320#define GPLL4_VOTE 303
321#define GCC_SDCC1_CDCCAL_SLEEP_CLK 304
322#define GCC_SDCC1_CDCCAL_FF_CLK 305
319 323
320#endif 324#endif
diff --git a/include/dt-bindings/clock/r8a7779-clock.h b/include/dt-bindings/clock/r8a7779-clock.h
new file mode 100644
index 000000000000..381a6114237a
--- /dev/null
+++ b/include/dt-bindings/clock/r8a7779-clock.h
@@ -0,0 +1,64 @@
1/*
2 * Copyright (C) 2013 Horms Solutions Ltd.
3 *
4 * Contact: Simon Horman <horms@verge.net.au>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __DT_BINDINGS_CLOCK_R8A7779_H__
13#define __DT_BINDINGS_CLOCK_R8A7779_H__
14
15/* CPG */
16#define R8A7779_CLK_PLLA 0
17#define R8A7779_CLK_Z 1
18#define R8A7779_CLK_ZS 2
19#define R8A7779_CLK_S 3
20#define R8A7779_CLK_S1 4
21#define R8A7779_CLK_P 5
22#define R8A7779_CLK_B 6
23#define R8A7779_CLK_OUT 7
24
25/* MSTP 0 */
26#define R8A7779_CLK_HSPI 7
27#define R8A7779_CLK_TMU2 14
28#define R8A7779_CLK_TMU1 15
29#define R8A7779_CLK_TMU0 16
30#define R8A7779_CLK_HSCIF1 18
31#define R8A7779_CLK_HSCIF0 19
32#define R8A7779_CLK_SCIF5 21
33#define R8A7779_CLK_SCIF4 22
34#define R8A7779_CLK_SCIF3 23
35#define R8A7779_CLK_SCIF2 24
36#define R8A7779_CLK_SCIF1 25
37#define R8A7779_CLK_SCIF0 26
38#define R8A7779_CLK_I2C3 27
39#define R8A7779_CLK_I2C2 28
40#define R8A7779_CLK_I2C1 29
41#define R8A7779_CLK_I2C0 30
42
43/* MSTP 1 */
44#define R8A7779_CLK_USB01 0
45#define R8A7779_CLK_USB2 1
46#define R8A7779_CLK_DU 3
47#define R8A7779_CLK_VIN2 8
48#define R8A7779_CLK_VIN1 9
49#define R8A7779_CLK_VIN0 10
50#define R8A7779_CLK_ETHER 14
51#define R8A7779_CLK_SATA 15
52#define R8A7779_CLK_PCIE 16
53#define R8A7779_CLK_VIN3 20
54
55/* MSTP 3 */
56#define R8A7779_CLK_SDHI3 20
57#define R8A7779_CLK_SDHI2 21
58#define R8A7779_CLK_SDHI1 22
59#define R8A7779_CLK_SDHI0 23
60#define R8A7779_CLK_MMC1 30
61#define R8A7779_CLK_MMC0 31
62
63
64#endif /* __DT_BINDINGS_CLOCK_R8A7779_H__ */
diff --git a/include/dt-bindings/clock/tegra114-car.h b/include/dt-bindings/clock/tegra114-car.h
index 6d0d8d8ef31e..fc12621fb432 100644
--- a/include/dt-bindings/clock/tegra114-car.h
+++ b/include/dt-bindings/clock/tegra114-car.h
@@ -337,6 +337,7 @@
337#define TEGRA114_CLK_CLK_OUT_3_MUX 308 337#define TEGRA114_CLK_CLK_OUT_3_MUX 308
338#define TEGRA114_CLK_DSIA_MUX 309 338#define TEGRA114_CLK_DSIA_MUX 309
339#define TEGRA114_CLK_DSIB_MUX 310 339#define TEGRA114_CLK_DSIB_MUX 310
340#define TEGRA114_CLK_CLK_MAX 311 340#define TEGRA114_CLK_XUSB_SS_DIV2 311
341#define TEGRA114_CLK_CLK_MAX 312
341 342
342#endif /* _DT_BINDINGS_CLOCK_TEGRA114_CAR_H */ 343#endif /* _DT_BINDINGS_CLOCK_TEGRA114_CAR_H */
diff --git a/include/dt-bindings/clock/tegra124-car.h b/include/dt-bindings/clock/tegra124-car.h
index 433528ab5161..8a4c5892890f 100644
--- a/include/dt-bindings/clock/tegra124-car.h
+++ b/include/dt-bindings/clock/tegra124-car.h
@@ -336,6 +336,7 @@
336#define TEGRA124_CLK_DSIA_MUX 309 336#define TEGRA124_CLK_DSIA_MUX 309
337#define TEGRA124_CLK_DSIB_MUX 310 337#define TEGRA124_CLK_DSIB_MUX 310
338#define TEGRA124_CLK_SOR0_LVDS 311 338#define TEGRA124_CLK_SOR0_LVDS 311
339#define TEGRA124_CLK_CLK_MAX 312 339#define TEGRA124_CLK_XUSB_SS_DIV2 312
340#define TEGRA124_CLK_CLK_MAX 313
340 341
341#endif /* _DT_BINDINGS_CLOCK_TEGRA124_CAR_H */ 342#endif /* _DT_BINDINGS_CLOCK_TEGRA124_CAR_H */
diff --git a/include/dt-bindings/reset/qcom,gcc-msm8960.h b/include/dt-bindings/reset/qcom,gcc-msm8960.h
index a840e680323c..07edd0e65eed 100644
--- a/include/dt-bindings/reset/qcom,gcc-msm8960.h
+++ b/include/dt-bindings/reset/qcom,gcc-msm8960.h
@@ -58,7 +58,7 @@
58#define PPSS_PROC_RESET 41 58#define PPSS_PROC_RESET 41
59#define PPSS_RESET 42 59#define PPSS_RESET 42
60#define DMA_BAM_RESET 43 60#define DMA_BAM_RESET 43
61#define SIC_TIC_RESET 44 61#define SPS_TIC_H_RESET 44
62#define SLIMBUS_H_RESET 45 62#define SLIMBUS_H_RESET 45
63#define SFAB_CFPB_M_RESET 46 63#define SFAB_CFPB_M_RESET 46
64#define SFAB_CFPB_S_RESET 47 64#define SFAB_CFPB_S_RESET 47
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index f295bab1865d..0c287dbbb144 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -40,14 +40,14 @@ struct dentry;
40 * through the clk_* api. 40 * through the clk_* api.
41 * 41 *
42 * @prepare: Prepare the clock for enabling. This must not return until 42 * @prepare: Prepare the clock for enabling. This must not return until
43 * the clock is fully prepared, and it's safe to call clk_enable. 43 * the clock is fully prepared, and it's safe to call clk_enable.
44 * This callback is intended to allow clock implementations to 44 * This callback is intended to allow clock implementations to
45 * do any initialisation that may sleep. Called with 45 * do any initialisation that may sleep. Called with
46 * prepare_lock held. 46 * prepare_lock held.
47 * 47 *
48 * @unprepare: Release the clock from its prepared state. This will typically 48 * @unprepare: Release the clock from its prepared state. This will typically
49 * undo any work done in the @prepare callback. Called with 49 * undo any work done in the @prepare callback. Called with
50 * prepare_lock held. 50 * prepare_lock held.
51 * 51 *
52 * @is_prepared: Queries the hardware to determine if the clock is prepared. 52 * @is_prepared: Queries the hardware to determine if the clock is prepared.
53 * This function is allowed to sleep. Optional, if this op is not 53 * This function is allowed to sleep. Optional, if this op is not
@@ -58,16 +58,16 @@ struct dentry;
58 * Called with prepare mutex held. This function may sleep. 58 * Called with prepare mutex held. This function may sleep.
59 * 59 *
60 * @enable: Enable the clock atomically. This must not return until the 60 * @enable: Enable the clock atomically. This must not return until the
61 * clock is generating a valid clock signal, usable by consumer 61 * clock is generating a valid clock signal, usable by consumer
62 * devices. Called with enable_lock held. This function must not 62 * devices. Called with enable_lock held. This function must not
63 * sleep. 63 * sleep.
64 * 64 *
65 * @disable: Disable the clock atomically. Called with enable_lock held. 65 * @disable: Disable the clock atomically. Called with enable_lock held.
66 * This function must not sleep. 66 * This function must not sleep.
67 * 67 *
68 * @is_enabled: Queries the hardware to determine if the clock is enabled. 68 * @is_enabled: Queries the hardware to determine if the clock is enabled.
69 * This function must not sleep. Optional, if this op is not 69 * This function must not sleep. Optional, if this op is not
70 * set then the enable count will be used. 70 * set then the enable count will be used.
71 * 71 *
72 * @disable_unused: Disable the clock atomically. Only called from 72 * @disable_unused: Disable the clock atomically. Only called from
73 * clk_disable_unused for gate clocks with special needs. 73 * clk_disable_unused for gate clocks with special needs.
@@ -75,34 +75,35 @@ struct dentry;
75 * sleep. 75 * sleep.
76 * 76 *
77 * @recalc_rate Recalculate the rate of this clock, by querying hardware. The 77 * @recalc_rate Recalculate the rate of this clock, by querying hardware. The
78 * parent rate is an input parameter. It is up to the caller to 78 * parent rate is an input parameter. It is up to the caller to
79 * ensure that the prepare_mutex is held across this call. 79 * ensure that the prepare_mutex is held across this call.
80 * Returns the calculated rate. Optional, but recommended - if 80 * Returns the calculated rate. Optional, but recommended - if
81 * this op is not set then clock rate will be initialized to 0. 81 * this op is not set then clock rate will be initialized to 0.
82 * 82 *
83 * @round_rate: Given a target rate as input, returns the closest rate actually 83 * @round_rate: Given a target rate as input, returns the closest rate actually
84 * supported by the clock. 84 * supported by the clock. The parent rate is an input/output
85 * parameter.
85 * 86 *
86 * @determine_rate: Given a target rate as input, returns the closest rate 87 * @determine_rate: Given a target rate as input, returns the closest rate
87 * actually supported by the clock, and optionally the parent clock 88 * actually supported by the clock, and optionally the parent clock
88 * that should be used to provide the clock rate. 89 * that should be used to provide the clock rate.
89 * 90 *
90 * @get_parent: Queries the hardware to determine the parent of a clock. The
91 * return value is a u8 which specifies the index corresponding to
92 * the parent clock. This index can be applied to either the
93 * .parent_names or .parents arrays. In short, this function
94 * translates the parent value read from hardware into an array
95 * index. Currently only called when the clock is initialized by
96 * __clk_init. This callback is mandatory for clocks with
97 * multiple parents. It is optional (and unnecessary) for clocks
98 * with 0 or 1 parents.
99 *
100 * @set_parent: Change the input source of this clock; for clocks with multiple 91 * @set_parent: Change the input source of this clock; for clocks with multiple
101 * possible parents specify a new parent by passing in the index 92 * possible parents specify a new parent by passing in the index
102 * as a u8 corresponding to the parent in either the .parent_names 93 * as a u8 corresponding to the parent in either the .parent_names
103 * or .parents arrays. This function in affect translates an 94 * or .parents arrays. This function in affect translates an
104 * array index into the value programmed into the hardware. 95 * array index into the value programmed into the hardware.
105 * Returns 0 on success, -EERROR otherwise. 96 * Returns 0 on success, -EERROR otherwise.
97 *
98 * @get_parent: Queries the hardware to determine the parent of a clock. The
99 * return value is a u8 which specifies the index corresponding to
100 * the parent clock. This index can be applied to either the
101 * .parent_names or .parents arrays. In short, this function
102 * translates the parent value read from hardware into an array
103 * index. Currently only called when the clock is initialized by
104 * __clk_init. This callback is mandatory for clocks with
105 * multiple parents. It is optional (and unnecessary) for clocks
106 * with 0 or 1 parents.
106 * 107 *
107 * @set_rate: Change the rate of this clock. The requested rate is specified 108 * @set_rate: Change the rate of this clock. The requested rate is specified
108 * by the second argument, which should typically be the return 109 * by the second argument, which should typically be the return
@@ -110,13 +111,6 @@ struct dentry;
110 * which is likely helpful for most .set_rate implementation. 111 * which is likely helpful for most .set_rate implementation.
111 * Returns 0 on success, -EERROR otherwise. 112 * Returns 0 on success, -EERROR otherwise.
112 * 113 *
113 * @recalc_accuracy: Recalculate the accuracy of this clock. The clock accuracy
114 * is expressed in ppb (parts per billion). The parent accuracy is
115 * an input parameter.
116 * Returns the calculated accuracy. Optional - if this op is not
117 * set then clock accuracy will be initialized to parent accuracy
118 * or 0 (perfect clock) if clock has no parent.
119 *
120 * @set_rate_and_parent: Change the rate and the parent of this clock. The 114 * @set_rate_and_parent: Change the rate and the parent of this clock. The
121 * requested rate is specified by the second argument, which 115 * requested rate is specified by the second argument, which
122 * should typically be the return of .round_rate call. The 116 * should typically be the return of .round_rate call. The
@@ -128,6 +122,18 @@ struct dentry;
128 * separately via calls to .set_parent and .set_rate. 122 * separately via calls to .set_parent and .set_rate.
129 * Returns 0 on success, -EERROR otherwise. 123 * Returns 0 on success, -EERROR otherwise.
130 * 124 *
125 * @recalc_accuracy: Recalculate the accuracy of this clock. The clock accuracy
126 * is expressed in ppb (parts per billion). The parent accuracy is
127 * an input parameter.
128 * Returns the calculated accuracy. Optional - if this op is not
129 * set then clock accuracy will be initialized to parent accuracy
130 * or 0 (perfect clock) if clock has no parent.
131 *
132 * @init: Perform platform-specific initialization magic.
133 * This is not not used by any of the basic clock types.
134 * Please consider other ways of solving initialization problems
135 * before using this callback, as its use is discouraged.
136 *
131 * @debug_init: Set up type-specific debugfs entries for this clock. This 137 * @debug_init: Set up type-specific debugfs entries for this clock. This
132 * is called once, after the debugfs directory entry for this 138 * is called once, after the debugfs directory entry for this
133 * clock has been created. The dentry pointer representing that 139 * clock has been created. The dentry pointer representing that
@@ -157,15 +163,15 @@ struct clk_ops {
157 void (*disable_unused)(struct clk_hw *hw); 163 void (*disable_unused)(struct clk_hw *hw);
158 unsigned long (*recalc_rate)(struct clk_hw *hw, 164 unsigned long (*recalc_rate)(struct clk_hw *hw,
159 unsigned long parent_rate); 165 unsigned long parent_rate);
160 long (*round_rate)(struct clk_hw *hw, unsigned long, 166 long (*round_rate)(struct clk_hw *hw, unsigned long rate,
161 unsigned long *); 167 unsigned long *parent_rate);
162 long (*determine_rate)(struct clk_hw *hw, unsigned long rate, 168 long (*determine_rate)(struct clk_hw *hw, unsigned long rate,
163 unsigned long *best_parent_rate, 169 unsigned long *best_parent_rate,
164 struct clk **best_parent_clk); 170 struct clk **best_parent_clk);
165 int (*set_parent)(struct clk_hw *hw, u8 index); 171 int (*set_parent)(struct clk_hw *hw, u8 index);
166 u8 (*get_parent)(struct clk_hw *hw); 172 u8 (*get_parent)(struct clk_hw *hw);
167 int (*set_rate)(struct clk_hw *hw, unsigned long, 173 int (*set_rate)(struct clk_hw *hw, unsigned long rate,
168 unsigned long); 174 unsigned long parent_rate);
169 int (*set_rate_and_parent)(struct clk_hw *hw, 175 int (*set_rate_and_parent)(struct clk_hw *hw,
170 unsigned long rate, 176 unsigned long rate,
171 unsigned long parent_rate, u8 index); 177 unsigned long parent_rate, u8 index);
@@ -254,12 +260,12 @@ void of_fixed_clk_setup(struct device_node *np);
254 * 260 *
255 * Flags: 261 * Flags:
256 * CLK_GATE_SET_TO_DISABLE - by default this clock sets the bit at bit_idx to 262 * CLK_GATE_SET_TO_DISABLE - by default this clock sets the bit at bit_idx to
257 * enable the clock. Setting this flag does the opposite: setting the bit 263 * enable the clock. Setting this flag does the opposite: setting the bit
258 * disable the clock and clearing it enables the clock 264 * disable the clock and clearing it enables the clock
259 * CLK_GATE_HIWORD_MASK - The gate settings are only in lower 16-bit 265 * CLK_GATE_HIWORD_MASK - The gate settings are only in lower 16-bit
260 * of this register, and mask of gate bits are in higher 16-bit of this 266 * of this register, and mask of gate bits are in higher 16-bit of this
261 * register. While setting the gate bits, higher 16-bit should also be 267 * register. While setting the gate bits, higher 16-bit should also be
262 * updated to indicate changing gate bits. 268 * updated to indicate changing gate bits.
263 */ 269 */
264struct clk_gate { 270struct clk_gate {
265 struct clk_hw hw; 271 struct clk_hw hw;
@@ -298,20 +304,24 @@ struct clk_div_table {
298 * 304 *
299 * Flags: 305 * Flags:
300 * CLK_DIVIDER_ONE_BASED - by default the divisor is the value read from the 306 * CLK_DIVIDER_ONE_BASED - by default the divisor is the value read from the
301 * register plus one. If CLK_DIVIDER_ONE_BASED is set then the divider is 307 * register plus one. If CLK_DIVIDER_ONE_BASED is set then the divider is
302 * the raw value read from the register, with the value of zero considered 308 * the raw value read from the register, with the value of zero considered
303 * invalid, unless CLK_DIVIDER_ALLOW_ZERO is set. 309 * invalid, unless CLK_DIVIDER_ALLOW_ZERO is set.
304 * CLK_DIVIDER_POWER_OF_TWO - clock divisor is 2 raised to the value read from 310 * CLK_DIVIDER_POWER_OF_TWO - clock divisor is 2 raised to the value read from
305 * the hardware register 311 * the hardware register
306 * CLK_DIVIDER_ALLOW_ZERO - Allow zero divisors. For dividers which have 312 * CLK_DIVIDER_ALLOW_ZERO - Allow zero divisors. For dividers which have
307 * CLK_DIVIDER_ONE_BASED set, it is possible to end up with a zero divisor. 313 * CLK_DIVIDER_ONE_BASED set, it is possible to end up with a zero divisor.
308 * Some hardware implementations gracefully handle this case and allow a 314 * Some hardware implementations gracefully handle this case and allow a
309 * zero divisor by not modifying their input clock 315 * zero divisor by not modifying their input clock
310 * (divide by one / bypass). 316 * (divide by one / bypass).
311 * CLK_DIVIDER_HIWORD_MASK - The divider settings are only in lower 16-bit 317 * CLK_DIVIDER_HIWORD_MASK - The divider settings are only in lower 16-bit
312 * of this register, and mask of divider bits are in higher 16-bit of this 318 * of this register, and mask of divider bits are in higher 16-bit of this
313 * register. While setting the divider bits, higher 16-bit should also be 319 * register. While setting the divider bits, higher 16-bit should also be
314 * updated to indicate changing divider bits. 320 * updated to indicate changing divider bits.
321 * CLK_DIVIDER_ROUND_CLOSEST - Makes the best calculated divider to be rounded
322 * to the closest integer instead of the up one.
323 * CLK_DIVIDER_READ_ONLY - The divider settings are preconfigured and should
324 * not be changed by the clock framework.
315 */ 325 */
316struct clk_divider { 326struct clk_divider {
317 struct clk_hw hw; 327 struct clk_hw hw;
@@ -327,8 +337,11 @@ struct clk_divider {
327#define CLK_DIVIDER_POWER_OF_TWO BIT(1) 337#define CLK_DIVIDER_POWER_OF_TWO BIT(1)
328#define CLK_DIVIDER_ALLOW_ZERO BIT(2) 338#define CLK_DIVIDER_ALLOW_ZERO BIT(2)
329#define CLK_DIVIDER_HIWORD_MASK BIT(3) 339#define CLK_DIVIDER_HIWORD_MASK BIT(3)
340#define CLK_DIVIDER_ROUND_CLOSEST BIT(4)
341#define CLK_DIVIDER_READ_ONLY BIT(5)
330 342
331extern const struct clk_ops clk_divider_ops; 343extern const struct clk_ops clk_divider_ops;
344extern const struct clk_ops clk_divider_ro_ops;
332struct clk *clk_register_divider(struct device *dev, const char *name, 345struct clk *clk_register_divider(struct device *dev, const char *name,
333 const char *parent_name, unsigned long flags, 346 const char *parent_name, unsigned long flags,
334 void __iomem *reg, u8 shift, u8 width, 347 void __iomem *reg, u8 shift, u8 width,
@@ -356,9 +369,9 @@ struct clk *clk_register_divider_table(struct device *dev, const char *name,
356 * CLK_MUX_INDEX_ONE - register index starts at 1, not 0 369 * CLK_MUX_INDEX_ONE - register index starts at 1, not 0
357 * CLK_MUX_INDEX_BIT - register index is a single bit (power of two) 370 * CLK_MUX_INDEX_BIT - register index is a single bit (power of two)
358 * CLK_MUX_HIWORD_MASK - The mux settings are only in lower 16-bit of this 371 * CLK_MUX_HIWORD_MASK - The mux settings are only in lower 16-bit of this
359 * register, and mask of mux bits are in higher 16-bit of this register. 372 * register, and mask of mux bits are in higher 16-bit of this register.
360 * While setting the mux bits, higher 16-bit should also be updated to 373 * While setting the mux bits, higher 16-bit should also be updated to
361 * indicate changing mux bits. 374 * indicate changing mux bits.
362 */ 375 */
363struct clk_mux { 376struct clk_mux {
364 struct clk_hw hw; 377 struct clk_hw hw;
diff --git a/include/linux/clk/shmobile.h b/include/linux/clk/shmobile.h
index f9bf080a1123..9f8a14041dd5 100644
--- a/include/linux/clk/shmobile.h
+++ b/include/linux/clk/shmobile.h
@@ -1,7 +1,9 @@
1/* 1/*
2 * Copyright 2013 Ideas On Board SPRL 2 * Copyright 2013 Ideas On Board SPRL
3 * Copyright 2013, 2014 Horms Solutions Ltd.
3 * 4 *
4 * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> 5 * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
6 * Contact: Simon Horman <horms@verge.net.au>
5 * 7 *
6 * This program is free software; you can redistribute it and/or modify 8 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
@@ -14,6 +16,7 @@
14 16
15#include <linux/types.h> 17#include <linux/types.h>
16 18
19void r8a7779_clocks_init(u32 mode);
17void rcar_gen2_clocks_init(u32 mode); 20void rcar_gen2_clocks_init(u32 mode);
18 21
19#endif 22#endif
diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
new file mode 100644
index 000000000000..aed28c4451d9
--- /dev/null
+++ b/include/linux/clk/sunxi.h
@@ -0,0 +1,22 @@
1/*
2 * Copyright 2013 - Hans de Goede <hdegoede@redhat.com>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15#ifndef __LINUX_CLK_SUNXI_H_
16#define __LINUX_CLK_SUNXI_H_
17
18#include <linux/clk.h>
19
20void clk_sunxi_mmc_phase_control(struct clk *clk, u8 sample, u8 output);
21
22#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-28 01:45:38 -0400