edminiv2: orion5x: fix GPIO inits and values

Orion5x did not actually write GPIO output values
or input polarities, and ED Mini V2 had bad or
missing values for GPIO settings.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-By: Prafulla Wadaskar <prafulla@marvell.com>
diff --git a/arch/arm/cpu/arm926ejs/orion5x/cpu.c b/arch/arm/cpu/arm926ejs/orion5x/cpu.c
index 792b11d..c3948d3 100644
--- a/arch/arm/cpu/arm926ejs/orion5x/cpu.c
+++ b/arch/arm/cpu/arm926ejs/orion5x/cpu.c
@@ -292,7 +292,9 @@
 	writel(ORION5X_MPP0_7, ORION5X_MPP_BASE+0x00);
 	writel(ORION5X_MPP8_15, ORION5X_MPP_BASE+0x04);
 	writel(ORION5X_MPP16_23, ORION5X_MPP_BASE+0x50);
+	writel(ORION5X_GPIO_OUT_VALUE, ORION5X_GPIO_BASE+0x00);
 	writel(ORION5X_GPIO_OUT_ENABLE, ORION5X_GPIO_BASE+0x04);
+	writel(ORION5X_GPIO_IN_POLARITY, ORION5X_GPIO_BASE+0x0c);
 
 	/* initialize timer */
 	timer_init_r();