diff options
| author | Robert Nelson <robertcnelson@gmail.com> | 2011-10-10 11:16:12 -0500 |
|---|---|---|
| committer | Jerome Glisse <jglisse@redhat.com> | 2013-07-28 14:05:39 -0400 |
| commit | 8863020a5dea1ef2caa4913ec9feb6be713b9ba3 (patch) | |
| tree | 61de1b063ac5d8cffefbfc88216449a72c3d5ee3 | |
| parent | b600b08bea66d530ccef7bc3f9af182d05995d78 (diff) | |
expansion: add zippy
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3beagle.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 9f5706be44e6..6ffafd635ff6 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -159,6 +159,48 @@ static void __init omap3_beagle_init_rev(void) char expansionboard_name[16]; +#if defined(CONFIG_ENC28J60) || defined(CONFIG_ENC28J60_MODULE) + +#include <plat/mcspi.h> +#include <linux/spi/spi.h> + +#define OMAP3BEAGLE_GPIO_ENC28J60_IRQ 157 + +static struct omap2_mcspi_device_config enc28j60_spi_chip_info = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +static struct spi_board_info omap3beagle_zippy_spi_board_info[] __initdata = { + { + .modalias = "enc28j60", + .bus_num = 4, + .chip_select = 0, + .max_speed_hz = 20000000, + .controller_data = &enc28j60_spi_chip_info, + }, +}; + +static void __init omap3beagle_enc28j60_init(void) +{ + if ((gpio_request(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, "ENC28J60_IRQ") == 0) && + (gpio_direction_input(OMAP3BEAGLE_GPIO_ENC28J60_IRQ) == 0)) { + gpio_export(OMAP3BEAGLE_GPIO_ENC28J60_IRQ, 0); + omap3beagle_zippy_spi_board_info[0].irq = OMAP_GPIO_IRQ(OMAP3BEAGLE_GPIO_ENC28J60_IRQ); + irq_set_irq_type(omap3beagle_zippy_spi_board_info[0].irq, IRQ_TYPE_EDGE_FALLING); + } else { + printk(KERN_ERR "could not obtain gpio for ENC28J60_IRQ\n"); + return; + } + + spi_register_board_info(omap3beagle_zippy_spi_board_info, + ARRAY_SIZE(omap3beagle_zippy_spi_board_info)); +} + +#else +static inline void __init omap3beagle_enc28j60_init(void) { return; } +#endif + static struct mtd_partition omap3beagle_nand_partitions[] = { /* All the partition sizes are listed in terms of NAND block size */ { @@ -567,6 +609,15 @@ static void __init omap3_beagle_init(void) /* REVISIT leave DVI powered down until it's needed ... */ gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD"); + if(!strcmp(expansionboard_name, "zippy")) + { + printk(KERN_INFO "Beagle expansionboard: initializing enc28j60\n"); + omap3beagle_enc28j60_init(); + printk(KERN_INFO "Beagle expansionboard: assigning GPIO 141 and 162 to MMC1\n"); + mmc[1].gpio_wp = 141; + mmc[1].gpio_cd = 162; + } + usb_musb_init(NULL); usbhs_init(&usbhs_bdata); omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions, |