Steve Sakoman <sakoman@xxxxxxxxx> writes:
> Gumstix will soon be shipping a variant of their Summit board that
> includes an SMSC9221 ethernet interface. This patch is intended to
> provide support via the smsc911x driver when enabled in defconfig.
> The final submission of course will also include an updated defconfig.
>
> Signed-off-by: Steve Sakoman <steve@xxxxxxxxxxx>
> ---
> diff --git a/arch/arm/mach-omap2/board-overo.c
> b/arch/arm/mach-omap2/board-overo.c
> index 9995ac2..97d95a4 100644
> --- a/arch/arm/mach-omap2/board-overo.c
> +++ b/arch/arm/mach-omap2/board-overo.c
> @@ -55,6 +55,63 @@
> #define GPMC_CS0_BASE 0x60
> #define GPMC_CS_SIZE 0x30
>
> +#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 = OMAP_GPIO_IRQ(OVERO_SMSC911X_GPIO),
I would put the 'platform_device_register(&overo_smsc911x_device)' here.
> +}
> +
Then here, add:
#else
static inline void __init overo_init_smsc911x(void) { return; }
This allows you to drop the #ifdefs below and have it look a little
cleaner.
Other than that, looks OK to me.
Kevin
> +#endif
> +
> static struct mtd_partition overo_nand_partitions[] = {
> {
> .name = "xloader",
> @@ -187,6 +244,9 @@ static void __init overo_init_irq(void)
> omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
> omap_init_irq();
> omap_gpio_init();
> +#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
> + overo_init_smsc911x();
> +#endif
> }
>
> static struct platform_device overo_lcd_device = {
> @@ -204,6 +264,9 @@ static struct omap_board_config_kernel
> overo_config[] __initdata = {
> };
>
> static struct platform_device *overo_devices[] __initdata = {
> +#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
> + &overo_smsc911x_device,
> +#endif
> &overo_lcd_device,
> };
>
> diff --git a/arch/arm/plat-omap/include/mach/board-overo.h
> b/arch/arm/plat-omap/include/mach/board-overo.h
> index 7ecae66..8635171 100644
> --- a/arch/arm/plat-omap/include/mach/board-overo.h
> +++ b/arch/arm/plat-omap/include/mach/board-overo.h
> @@ -22,5 +22,8 @@
> #define OVERO_GPIO_USBH_CPEN 168
> #define OVERO_GPIO_USBH_NRESET 183
>
> +#define OVERO_SMSC911X_CS 5
> +#define OVERO_SMSC911X_GPIO 176
> +
> #endif /* ____ASM_ARCH_OVERO_H */
> --
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