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ARM: Add SMSC911X support to Overo platform (V2) 

Gumstix will soon be shipping a variant of their Summit board that
includes an SMSC LAN9221 ethernet interface.  This patch provides
support via the smsc911x driver when enabled in kernel config.

The Overo defconfig is not updated since the LAN9221 is an option
not present on all systems.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Steve Glendinning <steve.glendinning@smsc.com>
This commit is contained in:
Steve Sakoman 2009-02-02 06:27:49 +00:00 committed by Steve Glendinning
parent 162e8a415f
commit 172ef27544
1 changed files with 65 additions and 0 deletions
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65
arch/arm/mach-omap2/board-overo.c
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@ -57,6 +57,9 @@
#define GPMC_CS0_BASE 0x60
#define GPMC_CS_SIZE 0x30
#define OVERO_SMSC911X_CS 5
#define OVERO_SMSC911X_GPIO 176
#if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
@ -116,6 +119,67 @@ static void __init overo_ads7846_init(void)
static inline void __init overo_ads7846_init(void) { return; }
#endif
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
#include <linux/smsc911x.h>
static struct resource overo_smsc911x_resources[] = {
{
.name = "smsc911x-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,
.flags = SMSC911X_USE_32BIT ,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device overo_smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(overo_smsc911x_resources),
.resource = &overo_smsc911x_resources,
.dev = {
.platform_data = &overo_smsc911x_config,
},
};
static inline void __init overo_init_smsc911x(void)
{
unsigned long cs_mem_base;
if (gpmc_cs_request(OVERO_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed request for GPMC mem for smsc911x\n");
return;
}
overo_smsc911x_resources[0].start = cs_mem_base + 0x0;
overo_smsc911x_resources[0].end = cs_mem_base + 0xff;
if ((gpio_request(OVERO_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
(gpio_direction_input(OVERO_SMSC911X_GPIO) == 0)) {
gpio_export(OVERO_SMSC911X_GPIO, 0);
} else {
printk(KERN_ERR "could not obtain gpio for SMSC911X IRQ\n");
return;
}
overo_smsc911x_resources[1].start = OMAP_GPIO_IRQ(OVERO_SMSC911X_GPIO);
overo_smsc911x_resources[1].end = 0;
platform_device_register(&overo_smsc911x_device);
}
#else
static inline void __init overo_init_smsc911x(void) { return; }
#endif
static struct mtd_partition overo_nand_partitions[] = {
{
.name = "xloader",
@ -290,6 +354,7 @@ static void __init overo_init(void)
overo_flash_init();
usb_musb_init();
overo_ads7846_init();
overo_init_smsc911x();
if ((gpio_request(OVERO_GPIO_W2W_NRESET,
"OVERO_GPIO_W2W_NRESET") == 0) &&