| Message ID | 20240205080027.4565-3-mihai.sain@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add power-supply properties for sdmmc nodes on Microchip boards | expand |
Hi, Mihai, On 05.02.2024 10:00, Mihai Sain wrote: > 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. Please wrap the line at 75 chars (see [1]). Thank you, Claudiu Beznea [1] https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html#the-canonical-patch-format. > 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-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. */ > }; >
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. */ };
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-sam9x60ek.dts | 4 ++++ 1 file changed, 4 insertions(+)