[PATCH] ARM: OMAP: Overo: Add support for second ethernet port

[PATCH] ARM: OMAP: Overo: Add support for second ethernet port

[Steve Sakoman]

From: Steve Sakoman <steve@sakoman.com>

Some Overo add-on boards include a second ethernet port.  This patch
adds support for that second port.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
---

diff --git a/arch/arm/mach-omap2/board-overo.c
b/arch/arm/mach-omap2/board-overo.c
index 8848c7c..4ceeb56 100644
--- a/arch/arm/mach-omap2/board-overo.c
+++ b/arch/arm/mach-omap2/board-overo.c
@@ -63,6 +63,8 @@

 #define OVERO_SMSC911X_CS      5
 #define OVERO_SMSC911X_GPIO    176
+#define OVERO_SMSC911X2_CS     4
+#define OVERO_SMSC911X2_GPIO   65

 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
 	defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
@@ -137,6 +139,16 @@ static struct resource overo_smsc911x_resources[] = {
 	},
 };

+static struct resource overo_smsc911x2_resources[] = {
+	{
+		.name	= "smsc911x2-memory",
+		.flags	= IORESOURCE_MEM,
+	},
+	{
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
+	},
+};
+
 static struct smsc911x_platform_config overo_smsc911x_config = {
 	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
 	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
@@ -146,7 +158,7 @@ static struct smsc911x_platform_config
overo_smsc911x_config = {

 static struct platform_device overo_smsc911x_device = {
 	.name		= "smsc911x",
-	.id		= -1,
+	.id		= 0,
 	.num_resources	= ARRAY_SIZE(overo_smsc911x_resources),
 	.resource	= overo_smsc911x_resources,
 	.dev		= {
@@ -154,9 +166,26 @@ static struct platform_device overo_smsc911x_device = {
 	},
 };

+static struct platform_device overo_smsc911x2_device = {
+	.name		= "smsc911x",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(overo_smsc911x2_resources),
+	.resource	= overo_smsc911x2_resources,
+	.dev		= {
+		.platform_data = &overo_smsc911x_config,
+	},
+};
+
+static struct platform_device *smsc911x_devices[] = {
+	&overo_smsc911x_device,
+	&overo_smsc911x2_device,
+};
+
 static inline void __init overo_init_smsc911x(void)
 {
-	unsigned long cs_mem_base;
+	unsigned long cs_mem_base, cs_mem_base2;
+
+	/* set up first smsc911x chip */

 	if (gpmc_cs_request(OVERO_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
 		printk(KERN_ERR "Failed request for GPMC mem for smsc911x\n");
@@ -177,7 +206,28 @@ static inline void __init overo_init_smsc911x(void)
 	overo_smsc911x_resources[1].start = OMAP_GPIO_IRQ(OVERO_SMSC911X_GPIO);
 	overo_smsc911x_resources[1].end	  = 0;

-	platform_device_register(&overo_smsc911x_device);
+	/* set up second smsc911x chip */
+
+	if (gpmc_cs_request(OVERO_SMSC911X2_CS, SZ_16M, &cs_mem_base2) < 0) {
+		printk(KERN_ERR "Failed request for GPMC mem for smsc911x2\n");
+		return;
+	}
+
+	overo_smsc911x2_resources[0].start = cs_mem_base2 + 0x0;
+	overo_smsc911x2_resources[0].end   = cs_mem_base2 + 0xff;
+
+	if ((gpio_request(OVERO_SMSC911X2_GPIO, "SMSC911X2 IRQ") == 0) &&
+	    (gpio_direction_input(OVERO_SMSC911X2_GPIO) == 0)) {
+		gpio_export(OVERO_SMSC911X2_GPIO, 0);
+	} else {
+		printk(KERN_ERR "could not obtain gpio for SMSC911X2 IRQ\n");
+		return;
+	}
+
+	overo_smsc911x2_resources[1].start = OMAP_GPIO_IRQ(OVERO_SMSC911X2_GPIO);
+	overo_smsc911x2_resources[1].end   = 0;
+
+	platform_add_devices(smsc911x_devices, ARRAY_SIZE(smsc911x_devices));
 }

 #else