From: "Arnout Vandecappelle (Essensium/Mind)" arnout@mind.be
AM/DM37x SoCs add the CTRL_WKUP_CTRL register. It contains the GPIO_IO_PWRDNZ bit, which is required to be set to enable the I/O pads of gpio_126, gpio_127 and gpio_129.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) arnout@mind.be Cc: Tom Rini trini@ti.com --- arch/arm/include/asm/arch-omap3/mux.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arm/include/asm/arch-omap3/mux.h b/arch/arm/include/asm/arch-omap3/mux.h index 71f183d..6e92b23 100644 --- a/arch/arm/include/asm/arch-omap3/mux.h +++ b/arch/arm/include/asm/arch-omap3/mux.h @@ -451,6 +451,11 @@ #define CONTROL_PADCONF_GPIO128 0x0A58 #define CONTROL_PADCONF_GPIO129 0x0A5A
+/* AM/DM37xx specific: gpio_127, gpio_127 and gpio_129 require configuration + * of the extended drain cells */ +#define OMAP34XX_CTRL_WKUP_CTRL (OMAP34XX_CTRL_BASE + 0x0A5C) +#define OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ (1<<6) + #define MUX_VAL(OFFSET,VALUE)\ writew((VALUE), OMAP34XX_CTRL_BASE + (OFFSET));