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-sam9x60ek.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
index f3cbb675cea4..b19a0956dc97 100644
--- a/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
+++ b/arch/arm/boot/dts/microchip/at91-sam9x60ek.dts
@@ -560,6 +560,8 @@ &sdmmc0 {
status = "okay";
cd-gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
disable-wp;
+ vmmc-supply = <&vdd1_3v3>;
+ vqmmc-supply = <&vdd1_3v3>;
};
&sdmmc1 {
@@ -568,6 +570,8 @@ &sdmmc1 {
pinctrl-0 = <&pinctrl_sdmmc1_default>;
no-1-8-v;
non-removable;
+ vmmc-supply = <&vdd1_3v3>;
+ vqmmc-supply = <&vdd1_3v3>;
status = "disabled"; /* Conflict with flx4. */
};
--
2.43.0
