diff options
| author | Yi Li <yi.li@analog.com> | 2009-01-07 23:14:38 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:38 +0800 |
| commit | f79ea4cba00e2c2f5ffde9007e7ba0fe992b2e18 (patch) | |
| tree | 379c72dfab33a4069621af81a12da3ba0253af4c /arch | |
| parent | 211daf9d7252288ad88ab6b97268a8d828e6b696 (diff) | |
| download | blackbird-op-linux-f79ea4cba00e2c2f5ffde9007e7ba0fe992b2e18.tar.gz blackbird-op-linux-f79ea4cba00e2c2f5ffde9007e7ba0fe992b2e18.zip | |
Blackfin arch: add mmc_spi support to BF537-STAMP
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/mach-bf537/boards/stamp.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 9b7b9f34767f..a5e8e5bc6496 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -46,6 +46,7 @@ #include <linux/interrupt.h> #include <linux/i2c.h> #include <linux/usb/sl811.h> +#include <linux/spi/mmc_spi.h> #include <asm/dma.h> #include <asm/bfin5xx_spi.h> #include <asm/reboot.h> @@ -533,6 +534,33 @@ static struct bfin5xx_spi_chip spi_mmc_chip_info = { }; #endif +#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) +#define MMC_SPI_CARD_DETECT_INT IRQ_PF5 + +static int bfin_mmc_spi_init(struct device *dev, + irqreturn_t (*detect_int)(int, void *), void *data) +{ + return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int, + IRQF_TRIGGER_FALLING, "mmc-spi-detect", data); +} + +static void bfin_mmc_spi_exit(struct device *dev, void *data) +{ + free_irq(MMC_SPI_CARD_DETECT_INT, data); +} + +static struct mmc_spi_platform_data bfin_mmc_spi_pdata = { + .init = bfin_mmc_spi_init, + .exit = bfin_mmc_spi_exit, + .detect_delay = 100, /* msecs */ +}; + +static struct bfin5xx_spi_chip mmc_spi_chip_info = { + .enable_dma = 0, + .bits_per_word = 8, +}; +#endif + #if defined(CONFIG_PBX) static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { .ctl_reg = 0x4, /* send zero */ @@ -712,6 +740,17 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .mode = SPI_MODE_3, }, #endif +#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) + { + .modalias = "mmc_spi", + .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 0, + .chip_select = 4, + .platform_data = &bfin_mmc_spi_pdata, + .controller_data = &mmc_spi_chip_info, + .mode = SPI_MODE_3, + }, +#endif #if defined(CONFIG_PBX) { .modalias = "fxs-spi", |
