From: Matthias Weisser <weisserm@arcor.de>
Date: Wed, 6 Jul 2011 00:28:32 +0000 (+0000)
Subject: imx: Make imx25 compatible to mxc_gpio driver and fix in tx25
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=95d185894bcb6c3dffb70ef69f3c80516d19bd49;p=u-boot.git

imx: Make imx25 compatible to mxc_gpio driver and fix in tx25

Adding support for mxc_gpio driver for imx25 and fix names of registers in tx25
board.

Signed-off-by: Matthias Weisser <weisserm@arcor.de>
---

diff --git a/arch/arm/include/asm/arch-mx25/imx-regs.h b/arch/arm/include/asm/arch-mx25/imx-regs.h
index 62ee4d537b..2ccb445975 100644
--- a/arch/arm/include/asm/arch-mx25/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx25/imx-regs.h
@@ -86,8 +86,8 @@ struct esdramc_regs {
 
 /* GPIO registers */
 struct gpio_regs {
-	u32 dr;		/* data */
-	u32 dir;	/* direction */
+	u32 gpio_dr;	/* data */
+	u32 gpio_dir;	/* direction */
 	u32 psr;	/* pad satus */
 	u32 icr1;	/* interrupt config 1 */
 	u32 icr2;	/* interrupt config 2 */
@@ -357,4 +357,10 @@ struct aips_regs {
 #define WSR_UNLOCK1		0x5555
 #define WSR_UNLOCK2		0xAAAA
 
+/* Names used in GPIO driver */
+#define GPIO1_BASE_ADDR		IMX_GPIO1_BASE
+#define GPIO2_BASE_ADDR		IMX_GPIO2_BASE
+#define GPIO3_BASE_ADDR		IMX_GPIO3_BASE
+#define GPIO4_BASE_ADDR		IMX_GPIO4_BASE
+
 #endif				/* _IMX_REGS_H */
diff --git a/board/karo/tx25/tx25.c b/board/karo/tx25/tx25.c
index 269858c6ee..4088374bc5 100644
--- a/board/karo/tx25/tx25.c
+++ b/board/karo/tx25/tx25.c
@@ -70,18 +70,18 @@ void tx25_fec_init(void)
 	writel(0x0, &padctl->pad_d11);
 
 	/* drop PHY power and assert reset (low) */
-	val = readl(&gpio4->dr) & ~((1 << 7) | (1 << 9));
-	writel(val, &gpio4->dr);
-	val = readl(&gpio4->dir) | (1 << 7) | (1 << 9);
-	writel(val, &gpio4->dir);
+	val = readl(&gpio4->gpio_dr) & ~((1 << 7) | (1 << 9));
+	writel(val, &gpio4->gpio_dr);
+	val = readl(&gpio4->gpio_dir) | (1 << 7) | (1 << 9);
+	writel(val, &gpio4->gpio_dir);
 
 	mdelay(5);
 
 	debug("resetting phy\n");
 
 	/* turn on PHY power leaving reset asserted */
-	val = readl(&gpio4->dr) | 1 << 9;
-	writel(val, &gpio4->dr);
+	val = readl(&gpio4->gpio_dr) | 1 << 9;
+	writel(val, &gpio4->gpio_dr);
 
 	mdelay(10);
 
@@ -111,19 +111,19 @@ void tx25_fec_init(void)
 	/*
 	 * set each to 1 and make each an output
 	 */
-	val = readl(&gpio3->dr) | (1 << 10) | (1 << 11) | (1 << 12);
-	writel(val, &gpio3->dr);
-	val = readl(&gpio3->dir) | (1 << 10) | (1 << 11) | (1 << 12);
-	writel(val, &gpio3->dir);
+	val = readl(&gpio3->gpio_dr) | (1 << 10) | (1 << 11) | (1 << 12);
+	writel(val, &gpio3->gpio_dr);
+	val = readl(&gpio3->gpio_dir) | (1 << 10) | (1 << 11) | (1 << 12);
+	writel(val, &gpio3->gpio_dir);
 
 	mdelay(22);		/* this value came from RedBoot */
 
 	/*
 	 * deassert PHY reset
 	 */
-	val = readl(&gpio4->dr) | 1 << 7;
-	writel(val, &gpio4->dr);
-	writel(val, &gpio4->dr);
+	val = readl(&gpio4->gpio_dr) | 1 << 7;
+	writel(val, &gpio4->gpio_dr);
+	writel(val, &gpio4->gpio_dr);
 
 	mdelay(5);
 
diff --git a/include/mxc_gpio.h b/include/mxc_gpio.h
index 002ba61e00..f673dcecd6 100644
--- a/include/mxc_gpio.h
+++ b/include/mxc_gpio.h
@@ -24,6 +24,11 @@
 #ifndef __MXC_GPIO_H
 #define __MXC_GPIO_H
 
+/* Converts a GPIO port number and the internal bit position
+ * to the GPIO number
+ */
+#define MXC_GPIO_PORT_TO_NUM(port, bit) (((port - 1) << 5) + (bit & 0x1f))
+
 enum mxc_gpio_direction {
 	MXC_GPIO_DIRECTION_IN,
 	MXC_GPIO_DIRECTION_OUT,