From b88cf6f732946874aaf3e0528459e0f0271dfcec Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Mon, 8 Jul 2013 18:04:58 +0200 Subject: ARM: shmobile: ape6evm-reference: add CPUFreq support Add CPUFreq support to ape6evm-reference, using a max8973 regulator, that is supplying V_DVFS for the 4 CA15 cores on r8a73a4. Signed-off-by: Guennadi Liakhovetski Acked-by: Magnus Damm Signed-off-by: Simon Horman --- arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'arch/arm/boot') diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts index 3251f059c25b..6f4506e737ac 100644 --- a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts +++ b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts @@ -31,3 +31,25 @@ ranges = <0 0 0 0x80000000>; }; }; + +&i2c5 { + vdd_dvfs: max8973@1b { + compatible = "maxim,max8973"; + reg = <0x1b>; + + regulator-min-microvolt = <935000>; + regulator-max-microvolt = <1200000>; + regulator-boot-on; + regulator-always-on; + }; +}; + +&cpu0 { + cpu0-supply = <&vdd_dvfs>; + operating-points = < + /* kHz uV */ + 1950000 1115000 + 1462500 995000 + >; + voltage-tolerance = <1>; /* 1% */ +}; -- cgit v1.2.3