IO voltage regulator for the SD card must be kept on all the time, otherwise when the board reboots the SD card can't be read by the bootloader. Signed-off-by: Joshua Watt <JPEWhacker@xxxxxxxxx> --- arch/arm/boot/dts/rk3288-tinker.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi index 312582c1bd37..acfaa12ec239 100644 --- a/arch/arm/boot/dts/rk3288-tinker.dtsi +++ b/arch/arm/boot/dts/rk3288-tinker.dtsi @@ -276,6 +276,7 @@ }; vccio_sd: LDO_REG5 { + regulator-always-on; regulator-boot-on; regulator-min-microvolt = <1800000>; regulator-max-microvolt = <3300000>; -- 2.17.1