The micro SD card slot uses GPIO3_13 as card detect pin, so describe it in the devicetree.
This was noticed when converting imx53-qsb board to driver model in U-Boot as the micro SD card was not getting detected.
After this change it is possible to load the dtb and zImage from the SD card and boot Linux.
Signed-off-by: Fabio Estevam festevam@gmail.com --- This patch has been sent to the kernel list: http://lists.infradead.org/pipermail/linux-arm-kernel/2021-February/639236.h...
arch/arm/dts/imx53-qsb-common.dtsi | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm/dts/imx53-qsb-common.dtsi b/arch/arm/dts/imx53-qsb-common.dtsi index 9b4efcd82636..fe4244044a0f 100644 --- a/arch/arm/dts/imx53-qsb-common.dtsi +++ b/arch/arm/dts/imx53-qsb-common.dtsi @@ -142,6 +142,7 @@ &esdhc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc1>; + cd-gpios = <&gpio3 13 GPIO_ACTIVE_LOW>; status = "okay"; };
@@ -209,6 +210,7 @@ MX53_PAD_SD1_DATA3__ESDHC1_DAT3 0x1d5 MX53_PAD_SD1_CMD__ESDHC1_CMD 0x1d5 MX53_PAD_SD1_CLK__ESDHC1_CLK 0x1d5 + MX53_PAD_EIM_DA13__GPIO3_13 0xe4 >; };