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Blackfin arch: add mmc_spi support to BF537-STAMP

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Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Yi Li 2009-01-07 23:14:38 +08:00 committed by Bryan Wu
parent 211daf9d72
commit f79ea4cba0
1 changed files with 39 additions and 0 deletions
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39
arch/blackfin/mach-bf537/boards/stamp.c
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@ -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",