From: Dave Gerlach <d-gerlach@xxxxxx>
Do not reset GPIO5 at boot-up because GPIO5_7 is used
on AM437x GP-EVM to control VTT regulators on DDR3.
Without this some GP-EVM boards will fail to boot because
of DDR3 corruption.
Reported-by: Nishanth Menon <nm@xxxxxx>
Tested-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx>
Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
---
This is applied on top of current linux-next.
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
arch/arm/boot/dts/am437x-gp-evm.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index df8798e..a055f7f 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -117,6 +117,11 @@
status = "okay";
};
+&gpio5 {
+ status = "okay";
+ ti,no-reset-on-init;
+};
+
&mmc1 {
status = "okay";
vmmc-supply = <&vmmcsd_fixed>;
--
1.7.9.5
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