[PATCH] mx2 GPIO OCRx register

[Teresa Gamez]

The GPIO OCRx register has to be set correct or the output is not set as expected.

Signed-off-by: Teresa Gámez <T.Gamez at phytec.de> 
---
Index: barebox-2010.06.0/arch/arm/mach-imx/gpio.c
===================================================================
--- barebox-2010.06.0/arch/arm/mach-imx/gpio.c	2010-06-02 10:36:28.000000000 +0200
+++ barebox-2010.06.0/arch/arm/mach-imx/gpio.c	2010-06-08 11:02:31.282473877 +0200
@@ -31,6 +31,8 @@
 #if defined CONFIG_ARCH_IMX1 || defined CONFIG_ARCH_IMX21 || defined CONFIG_ARCH_IMX27
 #define GPIO_DR		0x1c
 #define GPIO_GDIR	0x00
+#define GPIO_OCR1	0x04
+#define GPIO_OCR2	0x08
 #define GPIO_PSR	0x24
 #define GPIO_ICR1	0x28
 #define GPIO_ICR2	0x2C
@@ -103,6 +105,18 @@
 	if (!base)
 		return -EINVAL;
 
+#if defined GPIO_OCR1 && defined GPIO_OCR2
+	if (shift < 16) {
+		val = readl(base + GPIO_OCR1);
+		val |= (3 << (shift * 2));
+		writel(val, base + GPIO_OCR1);
+	} else {
+		val = readl(base + GPIO_OCR2);
+		val |= (3 << ((shift - 16) * 2));
+		writel(val, base + GPIO_OCR2);
+	}
+#endif
+
 	gpio_set_value(gpio, value);
 
 	val = readl(base + GPIO_GDIR);