[PATCH] ARM: imx: enable cpufreq for imx6q
From: Shawn Guo <hidden>
Date: 2012-10-15 03:29:46
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
It enables cpufreq support for imx6q with generic cpufreq-cpu0 driver. Signed-off-by: Shawn Guo <redacted> --- arch/arm/boot/dts/imx6q.dtsi | 10 +++++++++- arch/arm/mach-imx/Kconfig | 3 +++ arch/arm/mach-imx/clk-imx6q.c | 1 + 3 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index 255f56b..1565aea 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi@@ -36,6 +36,14 @@ compatible = "arm,cortex-a9"; reg = <0>; next-level-cache = <&L2>; + operating-points = < + /* kHz uV */ + 792000 1100000 + 396000 950000 + 198000 850000 + >; + clock-latency = <61036>; /* two CLK32 periods */ + cpu0-supply = <®_cpu>; }; cpu at 1 {
@@ -447,7 +455,7 @@ anatop-max-voltage = <2750000>; }; - regulator-vddcore at 140 { + reg_cpu: regulator-vddcore at 140 { compatible = "fsl,anatop-regulator"; regulator-name = "cpu"; regulator-min-microvolt = <725000>;
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 017296f..e1f78f5 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig@@ -829,6 +829,8 @@ config SOC_IMX53 config SOC_IMX6Q bool "i.MX6 Quad support" + select ARCH_HAS_CPUFREQ + select ARCH_HAS_OPP select ARM_CPU_SUSPEND if PM select ARM_GIC select COMMON_CLK
@@ -842,6 +844,7 @@ config SOC_IMX6Q select MFD_SYSCON select PINCTRL select PINCTRL_IMX6Q + select PM_OPP if PM help This enables support for Freescale i.MX6 Quad processor.
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index e5a82bb..5f9f591 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c@@ -406,6 +406,7 @@ int __init mx6q_clocks_init(void) clk_register_clkdev(clk[cko1_sel], "cko1_sel", NULL); clk_register_clkdev(clk[ahb], "ahb", NULL); clk_register_clkdev(clk[cko1], "cko1", NULL); + clk_register_clkdev(clk[arm], NULL, "cpu0"); /* * The gpmi needs 100MHz frequency in the EDO/Sync mode,
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1.7.9.5