| Message ID | 20240206120322.88907-2-mihai.sain@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add power-supply properties for sdmmc nodes on Microchip boards | expand |
diff --git a/arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts index c6fbdd29019f..457c54dde0b7 100644 --- a/arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts +++ b/arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts @@ -452,6 +452,8 @@ &sdmmc0 { pinctrl-0 = <&pinctrl_sdmmc0_default &pinctrl_sdmmc0_cd>; cd-gpios = <&pioA 25 GPIO_ACTIVE_LOW>; disable-wp; + vmmc-supply = <&vdd1_3v3>; + vqmmc-supply = <&vdd1_3v3>; status = "okay"; }; @@ -460,6 +462,8 @@ &sdmmc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_sdmmc1_default>; disable-wp; + vmmc-supply = <&vdd1_3v3>; + vqmmc-supply = <&vdd1_3v3>; status = "okay"; };
The sdmmc0 and sdmmc1 controllers are powered from 3.3V regulator. Add vmmc-supply and vqmmc-supply properties to sdmmc nodes. The sdmmc controller from SAM9X60 MPU doesn't support the IO voltage signaling/switching required by the UHS sd-card. In order to use the sd high-speed mode, keep vqmmc at 3V3. Signed-off-by: Mihai Sain <mihai.sain@microchip.com> --- arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts | 4 ++++ 1 file changed, 4 insertions(+)