tmakin/tegra-linux-noble
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to sdmmc0 node

Browse Source 
BugLink: https://bugs.launchpad.net/bugs/2111953

[ Upstream commit c21c23a0f2e9869676eff0d53fb89e151e14c873 ]

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: d85c4229e9 ("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>
Tested-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20241119160107.598411-2-cristian.birsan@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Cristian Birsan
2024-11-19 18:01:06 +02:00
committed by Mehmet Basaran
parent b2b0c90230
commit 3e20b65bc6
1 changed files with 1 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
+1
View File
@@ -501,6 +501,7 @@
&sdmmc0 {
bus-width = <4>;
no-1-8-v;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
disable-wp;