On 03/21/2014 12:20 AM, Lokesh Vutla wrote:
> 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>;
>
Tony,
any chance of having this in 3.15 cycle?
as of today's linux-next tag, the only platform I have that does not
boot is due to the lack of this patch.
next-20140325-omap2plus_defconfig
1: am335x-evm: Boot PASS: http://slexy.org/raw/s20o6CfGL8
2: am335x-sk: Boot PASS: http://slexy.org/raw/s2Ogu1zPtD
3: am3517-evm: Boot PASS: http://slexy.org/raw/s2m2WhHYO8
4: am37x-evm: Boot PASS: http://slexy.org/raw/s2jOybaVno
5: am43xx-epos: Boot PASS: http://slexy.org/raw/s21tt52N4b
6: am43xx-gpevm: Boot FAIL: http://slexy.org/raw/s21eDQmFWJ
7: beagleboard: Boot PASS: http://slexy.org/raw/s2q7vzrZHb
8: beaglebone-black: Boot PASS: http://slexy.org/raw/s2HCAJVz0H
9: beaglebone: Boot PASS: http://slexy.org/raw/s2NioACYsM
10: craneboard: Boot PASS: http://slexy.org/raw/s2s7jyo52c
11: dra7: Boot PASS: http://slexy.org/raw/s2OQ1BMerx
12: ldp: Boot PASS: http://slexy.org/raw/s2cWgQrdjb
13: pandaboard-es: Boot PASS: http://slexy.org/raw/s2lOaznVLO
14: sdp2430: Boot PASS: http://slexy.org/raw/s21RCJlUDU
15: sdp3430: Boot PASS: http://slexy.org/raw/s2181J9eWO
16: sdp4430: Boot PASS: http://slexy.org/raw/s20UumAiXK
17: OMAP5432uEVM: Boot PASS: http://slexy.org/raw/s21ypXvTNc
TOTAL = 17 boards, Booted Boards = 16, No Boot boards = 1
--
Regards,
Nishanth Menon
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