On Thu, Jul 02, 2020 at 08:22:56PM +0530, Amit Singh Tomar wrote: > This commit adds uSD support for Cubieboard7 board based on Actions Semi > S700 SoC. SD0 is connected to uSD slot. Since there is no PMIC support > added yet, fixed regulator has been used as a regulator node. > > Signed-off-by: Amit Singh Tomar <amittomer25@xxxxxxxxx> > --- > Changes since v4: > * No change. > Changes since v3: > * No change. > Changes since v2: > * No change. > Changes since v1: > * No change. > Changes since RFC: > * No change. > --- > arch/arm64/boot/dts/actions/s700-cubieboard7.dts | 41 ++++++++++++++++++++++++ > arch/arm64/boot/dts/actions/s700.dtsi | 1 + > 2 files changed, 42 insertions(+) > > diff --git a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts > index 63e375cd9eb4..ec117eb12f3a 100644 > --- a/arch/arm64/boot/dts/actions/s700-cubieboard7.dts > +++ b/arch/arm64/boot/dts/actions/s700-cubieboard7.dts > @@ -13,6 +13,7 @@ > > aliases { > serial3 = &uart3; > + mmc0 = &mmc0; > }; > > chosen { > @@ -28,6 +29,23 @@ > device_type = "memory"; > reg = <0x1 0xe0000000 0x0 0x0>; > }; > + > + /* Fixed regulator used in the absence of PMIC */ > + vcc_3v1: vcc-3v1 { > + compatible = "regulator-fixed"; > + regulator-name = "fixed-3.1V"; > + regulator-min-microvolt = <3100000>; > + regulator-max-microvolt = <3100000>; > + }; Is this regulator used somewhere? Thanks, Mani > + > + /* Fixed regulator used in the absence of PMIC */ > + sd_vcc: sd-vcc { > + compatible = "regulator-fixed"; > + regulator-name = "fixed-3.1V"; > + regulator-min-microvolt = <3100000>; > + regulator-max-microvolt = <3100000>; > + regulator-always-on; > + }; > }; > > &i2c0 { > @@ -81,6 +99,14 @@ > bias-pull-up; > }; > }; > + > + mmc0_default: mmc0_default { > + pinmux { > + groups = "sd0_d0_mfp", "sd0_d1_mfp", "sd0_d2_d3_mfp", > + "sd0_cmd_mfp", "sd0_clk_mfp"; > + function = "sd0"; > + }; > + }; > }; > > &timer { > @@ -90,3 +116,18 @@ > &uart3 { > status = "okay"; > }; > + > +/* uSD */ > +&mmc0 { > + status = "okay"; > + pinctrl-names = "default"; > + pinctrl-0 = <&mmc0_default>; > + cd-gpios = <&pinctrl 120 GPIO_ACTIVE_LOW>; > + no-sdio; > + no-mmc; > + no-1-8-v; > + bus-width = <4>; > + vmmc-supply = <&sd_vcc>; > + vqmmc-supply = <&sd_vcc>; > +}; > + > diff --git a/arch/arm64/boot/dts/actions/s700.dtsi b/arch/arm64/boot/dts/actions/s700.dtsi > index 9ed88aafc2da..ba498cf9217d 100644 > --- a/arch/arm64/boot/dts/actions/s700.dtsi > +++ b/arch/arm64/boot/dts/actions/s700.dtsi > @@ -4,6 +4,7 @@ > */ > > #include <dt-bindings/clock/actions,s700-cmu.h> > +#include <dt-bindings/gpio/gpio.h> > #include <dt-bindings/interrupt-controller/arm-gic.h> > #include <dt-bindings/power/owl-s700-powergate.h> > #include <dt-bindings/reset/actions,s700-reset.h> > -- > 2.7.4 >