diff options
Diffstat (limited to 'patches/linux-3.12/0763-ARM-dts-omap4-panda-es-Do-not-reset-gpio1.patch')
| -rw-r--r-- | patches/linux-3.12/0763-ARM-dts-omap4-panda-es-Do-not-reset-gpio1.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/patches/linux-3.12/0763-ARM-dts-omap4-panda-es-Do-not-reset-gpio1.patch b/patches/linux-3.12/0763-ARM-dts-omap4-panda-es-Do-not-reset-gpio1.patch new file mode 100644 index 0000000..f716df7 --- /dev/null +++ b/patches/linux-3.12/0763-ARM-dts-omap4-panda-es-Do-not-reset-gpio1.patch @@ -0,0 +1,30 @@ +From: Nishanth Menon <nm@ti.com> +Date: Thu, 10 Oct 2013 11:44:41 -0500 +Subject: [PATCH] ARM: dts: omap4-panda-es: Do not reset gpio1 + +Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on +OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which +supplies VDD_MPU. + +Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because +MPU voltage switches over to VSET0 voltage value (boot voltage) which +is not sufficient to operate the device at OPP100. + +Signed-off-by: Nishanth Menon <nm@ti.com> +Signed-off-by: Benoit Cousson <bcousson@baylibre.com> +--- + arch/arm/boot/dts/omap4-panda-es.dts | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts +index 56c4354..816d1c9 100644 +--- a/arch/arm/boot/dts/omap4-panda-es.dts ++++ b/arch/arm/boot/dts/omap4-panda-es.dts +@@ -62,3 +62,7 @@ + gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>; + }; + }; ++ ++&gpio1 { ++ ti,no-reset-on-init; ++}; |