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@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/microchip/at91-sam9x60_curiosity.dts | 4 ++++
1 file changed, 4 insertions(+)
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";
};
--
2.43.0
