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| author |   Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2013-07-08 18:04:58 +0200 |
|---|---|---|
| committer |   Simon Horman <horms+renesas@verge.net.au> | 2013-07-17 14:28:31 +0900 |
| commit | b88cf6f732946874aaf3e0528459e0f0271dfcec (patch) | |
| tree | 981120d257fc50ccf30b740dd5a5ed229fff42ad /arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | |
| parent | ARM: shmobile: ape6evm: add DT reference (diff) | |
| download | linux-dev-b88cf6f732946874aaf3e0528459e0f0271dfcec.tar.xz linux-dev-b88cf6f732946874aaf3e0528459e0f0271dfcec.zip | |
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 <g.liakhovetski+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts')
| -rw-r--r-- | arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | 22 |
1 files changed, 22 insertions, 0 deletions
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% */ +}; |