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 <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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>;
pinctrl-names = "default";
vmmc-supply = <&fixedregulator3v3>;
+ vqmmc-supply = <&vccq_sdhi0>;
bus-width = <4>;
status = "okay";
};