Hi,
I am trying to add sd card support on mx27pdk with the following patch
against Shawn's for-next:
diff --git a/arch/arm/boot/dts/imx27-pdk.dts b/arch/arm/boot/dts/imx27-pdk.dts
index 0dbb16a..749aa72 100644
--- a/arch/arm/boot/dts/imx27-pdk.dts
+++ b/arch/arm/boot/dts/imx27-pdk.dts
@@ -20,6 +20,22 @@
reg = <0xa0000000 0x08000000>;
};
+ regulators {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reg_mmc: regulator@0 {
+ compatible = "regulator-fixed";
+ reg = <0>;
+ regulator-name = "3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&gpio2 25 0>;
+ };
+ };
+
usbphy {
compatible = "simple-bus";
#address-cells = <1>;
@@ -92,6 +108,14 @@
nand-on-flash-bbt;
};
+&sdhci1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sdhc1>;
+ cd-gpios = <&gpio2 26 GPIO_ACTIVE_HIGH>;
+ vmmc-supply = <®_mmc>;
+ status = "okay";
+};
+
&uart1 {
fsl,uart-has-rtscts;
pinctrl-names = "default";
@@ -148,6 +172,19 @@
>;
};
+ pinctrl_sdhc1: sdhc1grp {
+ fsl,pins = <
+ MX27_PAD_SD1_D0__SD1_D0 0x0
+ MX27_PAD_SD1_D1__SD1_D1 0x0
+ MX27_PAD_SD1_D2__SD1_D2 0x0
+ MX27_PAD_SD1_D3__SD1_D3 0x0
+ MX27_PAD_SD1_CMD__SD1_CMD 0x0
+ MX27_PAD_SD1_CLK__SD1_CLK 0x0
+ MX27_PAD_USBH1_RCV__GPIO2_25 0x0
+ MX27_PAD_USBH1_FS__GPIO2_26 0x0
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX27_PAD_UART1_TXD__UART1_TXD 0x0
--
,but I get this error:
mxc-mmc 10013000.sdhci: mxcmci_finish_data: -EILSEQ
mmc0: error -84 whilst initialising SD card
mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new SDHC card at address b5a1
mmcblk0: mmc0:b5a1 SD04G 3.69 GiB
mmcblk0: unknown partition table
,which comes from STATUS_CRC_READ_ERR being set.
Any suggestions?
Thanks,
Fabio Estevam
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