Commit f79ea4cb authored by Yi Li's avatar Yi Li Committed by Bryan Wu
Browse files

Blackfin arch: add mmc_spi support to BF537-STAMP 



Signed-off-by: default avatarYi Li <yi.li@analog.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 211daf9d

arch/blackfin/mach-bf537/boards/stamp.c

+39 −0
Original line number Diff line number Diff line
@@ -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",