[PATCH v6 02/17] ARM: shmobile: r8a7779: Add clocks
Simon Horman
horms+renesas at verge.net.au
Thu May 15 04:31:57 PDT 2014
Declare all core and MSTP clocks currently used by r8a7779-based boards.
Based on work by Laurent Pinchart for the r8a7790 and r8a7791 SoCs.
Acked-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com
Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
---
v6
* Add Ack by Laurent Pinchart
v5
* As suggested by Laurent Pinchart
- Do not add duplicate HSPI or USB clocks
- Add TMU1 and TMU2 clocks instead of duplicate TMU0 clocks
v4
* As suggested by Laurent Pinchart
- Do not duplicate clocks
- Use TMU2 and TMU1 instead of TMU0 three times.
- Correct order of tmu clock output names
- Use usb01 and usb2 as clock output names instead
of ehci0 and ehci1.
* As suggested by Geert Uytterhoeven
- Wrap lines at < 80columns
- Beef-up short lines towards 80 columns
* As suggested by Laurent Pinchart
- Add HSCIF clocks
- Correct many clock sources
- Correct reg of cpg_clocks
* Add CPG clock "b" which is now part of the binding
v3
* As suggested by Laurent Pinchart
- Add and use extal_clk
- Fix bogus status register use for MSTP clocks
- Fix bogus mstp3_cls to use its own entries rather than
that of mstp1_clks
* Update to use "main" in cpg_clocks as per updated
binding in previous patch
* Update for new, consolidated and renamed index macros
- R8A7779_CLK_ETHER
- R8A7779_CLK_HSCIF
- R8A7779_CLK_HSPI
- R8A7779_CLK_MMC0,1
- R8A7779_CLK_PCIE
- R8A7779_CLK_USB01,2
---
arch/arm/boot/dts/r8a7779.dtsi | 144 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 144 insertions(+)
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index b517c8e..5a62970 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -11,6 +11,7 @@
/include/ "skeleton.dtsi"
+#include <dt-bindings/clock/r8a7779-clock.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
@@ -265,4 +266,147 @@
#size-cells = <0>;
status = "disabled";
};
+
+ clocks {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /* External root clock */
+ extal_clk: extal_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ /* This value must be overriden by the board. */
+ clock-frequency = <0>;
+ clock-output-names = "extal";
+ };
+
+ /* Special CPG clocks */
+ cpg_clocks: cpg_clocks at 0xe6150000 {
+ compatible = "renesas,r8a7779-cpg-clocks";
+ reg = <0 0xffc80000 0 0x30>;
+ clocks = <&extal_clk>;
+ #clock-cells = <1>;
+ clock-output-names = "plla", "z", "zs", "s",
+ "s1", "p", "b", "out";
+ };
+
+ /* Fixed factor clocks */
+ i_clk: i_clk {
+ compatible = "fixed-factor-clock";
+ clocks = <&cpg_clocks R8A7779_CLK_PLLA>;
+ #clock-cells = <0>;
+ clock-div = <2>;
+ clock-mult = <1>;
+ clock-output-names = "i";
+ };
+ s3_clk: s3_clk {
+ compatible = "fixed-factor-clock";
+ clocks = <&cpg_clocks R8A7779_CLK_PLLA>;
+ #clock-cells = <0>;
+ clock-div = <8>;
+ clock-mult = <1>;
+ clock-output-names = "s3";
+ };
+ s4_clk: s4_clk {
+ compatible = "fixed-factor-clock";
+ clocks = <&cpg_clocks R8A7779_CLK_PLLA>;
+ #clock-cells = <0>;
+ clock-div = <16>;
+ clock-mult = <1>;
+ clock-output-names = "s4";
+ };
+ g_clk: g_clk {
+ compatible = "fixed-factor-clock";
+ clocks = <&cpg_clocks R8A7779_CLK_PLLA>;
+ #clock-cells = <0>;
+ clock-div = <24>;
+ clock-mult = <1>;
+ clock-output-names = "g";
+ };
+
+ /* Gate clocks */
+ mstp0_clks: mstp0_clks {
+ compatible = "renesas,r8a7779-mstp-clocks",
+ "renesas,cpg-mstp-clocks";
+ reg = <0 0xffc80030 0 4>;
+ clocks = <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_S1>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>;
+ #clock-cells = <1>;
+ renesas,clock-indices = <
+ R8A7779_CLK_HSPI R8A7779_CLK_TMU2
+ R8A7779_CLK_TMU1 R8A7779_CLK_TMU0
+ R8A7779_CLK_HSCIF1 R8A7779_CLK_HSCIF0
+ R8A7779_CLK_SCIF5 R8A7779_CLK_SCIF4
+ R8A7779_CLK_SCIF3 R8A7779_CLK_SCIF2
+ R8A7779_CLK_SCIF1 R8A7779_CLK_SCIF0
+ R8A7779_CLK_I2C3 R8A7779_CLK_I2C2
+ R8A7779_CLK_I2C1 R8A7779_CLK_I2C0
+ >;
+ clock-output-names =
+ "hspi", "tmu2", "tmu1", "tmu0", "hscif1",
+ "hscif0", "scif5", "scif4", "scif3", "scif2",
+ "scif1", "scif0", "i2c3", "i2c2", "i2c1",
+ "i2c0";
+ };
+ mstp1_clks: mstp1_clks {
+ compatible = "renesas,r8a7779-mstp-clocks",
+ "renesas,cpg-mstp-clocks";
+ reg = <0 0xffc80034 0 4>, <0 0xffc80044 0 4>;
+ clocks = <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_S>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_P>,
+ <&cpg_clocks R8A7779_CLK_S>;
+ #clock-cells = <1>;
+ renesas,clock-indices = <
+ R8A7779_CLK_USB01 R8A7779_CLK_USB2
+ R8A7779_CLK_DU R8A7779_CLK_VIN2
+ R8A7779_CLK_VIN1 R8A7779_CLK_VIN0
+ R8A7779_CLK_ETHER R8A7779_CLK_SATA
+ R8A7779_CLK_PCIE R8A7779_CLK_VIN3
+ >;
+ clock-output-names =
+ "usb01", "usb2",
+ "du", "vin2",
+ "vin1", "vin0",
+ "ether", "sata",
+ "pcie", "vin3";
+ };
+ mstp3_clks: mstp3_clks {
+ compatible = "renesas,r8a7779-mstp-clocks",
+ "renesas,cpg-mstp-clocks";
+ reg = <0 0xffc8003c 0 4>;
+ clocks = <&s4_clk>, <&s4_clk>, <&s4_clk>, <&s4_clk>,
+ <&s4_clk>, <&s4_clk>;
+ #clock-cells = <1>;
+ renesas,clock-indices = <
+ R8A7779_CLK_SDHI3 R8A7779_CLK_SDHI2
+ R8A7779_CLK_SDHI1 R8A7779_CLK_SDHI0
+ R8A7779_CLK_MMC1 R8A7779_CLK_MMC0
+ >;
+ clock-output-names =
+ "sdhi3", "sdhi2", "sdhi1", "sdhi0",
+ "mmc1", "mmc0";
+ };
+ };
};
--
1.8.5.2
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