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authorDinh Nguyen <dinguyen@opensource.altera.com>2014-10-16 23:54:51 +0400
committerDinh Nguyen <dinguyen@opensource.altera.com>2014-10-23 05:59:45 +0400
commit23920c0552a462a095b9afa044ebedf8f9201c53 (patch)
treefc7a317d2129ca78d9a02abf4a0a5171e3a11a3d /arch
parentd11ac1d2d556ca8495e06d7c00fe5a96e4934e98 (diff)
downloadlinux-23920c0552a462a095b9afa044ebedf8f9201c53.tar.xz
ARM: dts: socfpga: Fix SD card detect
Without this patch, the booting the SOCFPGA platform would hang at the SDMMC driver loading. The issue, debugged by Doug Anderson, turned out to be that the GPIO bank used by the SD card-detect was not set to status="okay". Also update the cd-gpios to point to portb of the &gpio1 GPIO IP. Suggested-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> --- v4: Use &gpio1 to set status="okay" and update cd-gpio=&portb v3: Correctly degugged the issue to be a gpio node not having status="okay"
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/socfpga_cyclone5_socdk.dts6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index d7296a5f750c..d91c9437ba19 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -53,6 +53,10 @@
rxc-skew-ps = <2000>;
};
+&gpio1 {
+ status = "okay";
+};
+
&i2c0 {
status = "okay";
@@ -69,7 +73,7 @@
};
&mmc0 {
- cd-gpios = <&gpio1 18 0>;
+ cd-gpios = <&portb 18 0>;
};
&usb1 {