From: Magnus Damm <[email protected]> Add support for the on-board voltage regulator hooked up to GPIO3_20 on r8a7779 Marzen. The board schematics describes the regulator as U4 TPS2110A. Input wise, U4 has D0 fixed to ground, D1 tied to GPIO3_20 while IN1 is fixed to 3.3V and IN2 is fixed to 1.8V. OUT goes to the pull-ups for the data pins of SDHI0.
Signed-off-by: Magnus Damm <[email protected]> Signed-off-by: Simon Horman <[email protected]> --- arch/arm/boot/dts/r8a7779-marzen.dts | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm/boot/dts/r8a7779-marzen.dts b/arch/arm/boot/dts/r8a7779-marzen.dts index 9412a86f9b30..4b9006bac3cb 100644 --- a/arch/arm/boot/dts/r8a7779-marzen.dts +++ b/arch/arm/boot/dts/r8a7779-marzen.dts @@ -42,6 +42,19 @@ regulator-always-on; }; + vccq_sdhi0: regulator-vccq-sdhi0 { + compatible = "regulator-gpio"; + + regulator-name = "SDHI0 VccQ"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + + gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>; + gpios-states = <1>; + states = <3300000 1 + 1800000 0>; + }; + ethernet@18000000 { compatible = "smsc,lan9220", "smsc,lan9115"; reg = <0x18000000 0x100>; @@ -243,6 +256,7 @@ pinctrl-names = "default"; vmmc-supply = <&fixedregulator3v3>; + vqmmc-supply = <&vccq_sdhi0>; bus-width = <4>; status = "okay"; }; -- 2.11.0
