diff options
author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2015-10-04 21:58:48 +0300 |
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committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2015-10-05 15:56:11 +0300 |
commit | a2f1a680115c527972ead1b89de4a31176d3c2c6 (patch) | |
tree | f17c26c78e682fdd9e2f4c1db9fc4e99e92a5384 /arch/arm/boot/dts/sun4i-a10-pcduino.dts | |
parent | 15ada16dc7657c08242d24067a4ddf07a2662062 (diff) | |
download | linux-a2f1a680115c527972ead1b89de4a31176d3c2c6.tar.xz |
ARM: dts: sun4i: Add AXP209 PMU regulators for pcDuino1/2
This allows voltage-scaling with cpufreq-dt. The reliability of
voltage-scaling has been checked by reducing the voltage of all
operating points by 0.025V (for extra safety headroom) and running
libjpeg-turbo decoding tests on 5 pcDuino2 boards. It means that
the standard sun4i voltages should be perfectly fine too.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/sun4i-a10-pcduino.dts')
-rw-r--r-- | arch/arm/boot/dts/sun4i-a10-pcduino.dts | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts index 4e3e1b9d8217..c882421d08ff 100644 --- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts +++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts @@ -104,6 +104,10 @@ }; }; +&cpu0 { + cpu-supply = <®_dcdc2>; +}; + &ehci0 { status = "okay"; }; @@ -129,12 +133,8 @@ status = "okay"; axp209: pmic@34 { - compatible = "x-powers,axp209"; reg = <0x34>; interrupts = <0>; - - interrupt-controller; - #interrupt-cells = <1>; }; }; @@ -188,6 +188,33 @@ status = "okay"; }; +#include "axp209.dtsi" + +®_dcdc2 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-cpu"; +}; + +®_dcdc3 { + regulator-always-on; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1400000>; + regulator-name = "vdd-int-dll"; +}; + +®_ldo1 { + regulator-name = "vdd-rtc"; +}; + +®_ldo2 { + regulator-always-on; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-name = "avcc"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pins_a>; |