On Mon, Apr 28, 2014 at 12:53:39PM -0600, Stephen Warren wrote: > From: Stephen Warren <[email protected]> > > Venice2 can detect write-protect on the SD card. Add the required > DT entries to allow this. > > Signed-off-by: Stephen Warren <[email protected]> > --- > Thierry, could you test this for me; my Venice2 has been sent away for > a few days for some rework. You should find that if you write-protect > your SD card, the kernel fails/panics trying to mount it as a r/w root > fs, whereas if the card is not write-protected, everything still works > fine. Thanks. > --- > arch/arm/boot/dts/tegra124-venice2.dts | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/tegra124-venice2.dts > b/arch/arm/boot/dts/tegra124-venice2.dts > index 84a6ec039e1d..00e741ba6927 100644 > --- a/arch/arm/boot/dts/tegra124-venice2.dts > +++ b/arch/arm/boot/dts/tegra124-venice2.dts > @@ -943,6 +943,7 @@ > sdhci@0,700b0400 { > cd-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_HIGH>; > power-gpios = <&gpio TEGRA_GPIO(R, 0) GPIO_ACTIVE_HIGH>; > + wp-gpios = <&gpio TEGRA_GPIO(Q, 4) GPIO_ACTIVE_HIGH>;
I need to make this GPIO_ACTIVE_LOW for this to work properly on my
Venice2. With that I can see the initrd reporting:
mount: /dev/mmcblk0p1 is write-protected, mounting read-only
So with that changed:
Tested-by: Thierry Reding <[email protected]>
pgpnkdnQUbWk1.pgp
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