[PATCH 0/2] ARM: dts: microchip: Add no-1-8-v property to sdmmc0 node

[PATCH 0/2] ARM: dts: microchip: Add no-1-8-v property to sdmmc0 node

[cristian.birsan]

From: Cristian Birsan <cristian.birsan@microchip.com>

Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).

PA6 and PA10 GPIOs are used to enable the power switch controlling USB
Vbus for the USB Host.

Cristian Birsan (2):
  ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to
    sdmmc0 node
  ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to
    sdmmc0 node

 arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts | 1 +
 arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 1 +
 2 files changed, 2 insertions(+)


base-commit: 158f238aa69d91ad74e535c73f552bd4b025109c
-- 
2.34.1

[PATCH 1/2] ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to sdmmc0 node

[cristian.birsan]

From: Cristian Birsan <cristian.birsan@microchip.com>

Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).

On this board, PA6 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA6 voltage
level to 3.3V instead of 1.8V.

Fixes: d85c4229e925 ("ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board")
Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
---
 arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
index 951a0c97d3c6..5933840bb8f7 100644
--- a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
@@ -514,6 +514,7 @@ kernel@200000 {
 
 &sdmmc0 {
 	bus-width = <4>;
+	no-1-8-v;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc0_default>;
 	disable-wp;
-- 
2.34.1

[PATCH 2/2] ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to sdmmc0 node

[cristian.birsan]

From: Cristian Birsan <cristian.birsan@microchip.com>

Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).

On this board, PA10 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA10 voltage
level to 3.3V instead of 1.8V.

Fixes: 5d4c3cfb63fe ("ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek")
Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
---
 arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
index 15239834d886..35a933eec573 100644
--- a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
@@ -197,6 +197,7 @@ qspi1_flash: flash@0 {
 
 &sdmmc0 {
 	bus-width = <4>;
+	no-1-8-v;
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_sdmmc0_default>;
 	status = "okay";
-- 
2.34.1

Re: [PATCH 1/2] ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to sdmmc0 node

[Andrei Simion]

> From: Cristian Birsan <cristian.birsan@microchip.com>
>
> Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
> This property will stop the LDO regulator from switching to 1.8V when the
> MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
> SDMMC interface pins in GPIO mode (PA0 - PA13).
>
> On this board, PA6 is used as GPIO to enable the power switch controlling
> USB Vbus for the USB Host. The change is needed to fix the PA6 voltage
> level to 3.3V instead of 1.8V.
>
> Fixes: d85c4229e925 ("ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board")
> Suggested-by: Mihai Sain <mihai.sain@microchip.com>
> Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>

Hi,

Tested-by: Andrei Simion <andrei.simion@microchip.com>

> ---
>  arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> index 951a0c97d3c6..5933840bb8f7 100644
> --- a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> @@ -514,6 +514,7 @@ kernel@200000 {
>
>  &sdmmc0 {
>  	bus-width = <4>;
> +	no-1-8-v;
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_sdmmc0_default>;
>  	disable-wp;

Best Regards,
--
Andrei Simion

Re: [PATCH 2/2] ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to sdmmc0 node

[Andrei Simion]

> From: Cristian Birsan <cristian.birsan@microchip.com>
>
> Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
> This property will stop the LDO regulator from switching to 1.8V when the
> MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
> SDMMC interface pins in GPIO mode (PA0 - PA13).
>
> On this board, PA10 is used as GPIO to enable the power switch controlling
> USB Vbus for the USB Host. The change is needed to fix the PA10 voltage
> level to 3.3V instead of 1.8V.
>
> Fixes: 5d4c3cfb63fe ("ARM: dts: at91: sama5d27_wlsom1: add SAMA5D27 wlsom1 and wlsom1-ek")
> Suggested-by: Mihai Sain <mihai.sain@microchip.com>
> Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>

Hi,

Tested-by: Andrei Simion <andrei.simion@microchip.com>

> ---
>  arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
> index 15239834d886..35a933eec573 100644
> --- a/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
> +++ b/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts
> @@ -197,6 +197,7 @@ qspi1_flash: flash@0 {
>
>  &sdmmc0 {
>  	bus-width = <4>;
> +	no-1-8-v;
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_sdmmc0_default>;
>  	status = "okay";

Best Regards,
--
Andrei Simion