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Commit f6e5306e authored by Cyril Chemparathy's avatar Cyril Chemparathy Committed by Kevin Hilman
Browse files

davinci: add spi devices on tnetv107x evm 



This patch adds definitions for spi devices on the tnetv107x evm platform.

Signed-off-by: default avatarCyril Chemparathy <cyril@ti.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent 08e0e1d5

arch/arm/mach-davinci/board-tnetv107x-evm.c

+43 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/mtd/partitions.h>

#include <linux/mtd/partitions.h>

#include <linux/input.h>

#include <linux/input.h>

#include <linux/input/matrix_keypad.h>

#include <linux/input/matrix_keypad.h>

#include <linux/spi/spi.h>





#include <asm/mach/arch.h>

#include <asm/mach/arch.h>

#include <asm/mach-types.h>

#include <asm/mach-types.h>
@@ -37,6 +38,7 @@ 




#define EVM_MMC_WP_GPIO		21

#define EVM_MMC_WP_GPIO		21

#define EVM_MMC_CD_GPIO		24

#define EVM_MMC_CD_GPIO		24

#define EVM_SPI_CS_GPIO		54





static int initialize_gpio(int gpio, char *desc)

static int initialize_gpio(int gpio, char *desc)

{

{
@@ -202,9 +204,45 @@ static struct matrix_keypad_platform_data keypad_config = { 
	.no_autorepeat	= 0,

	.no_autorepeat	= 0,

};

};





static void spi_select_device(int cs)

{

	static int gpio;



	if (!gpio) {

		int ret;

		ret = gpio_request(EVM_SPI_CS_GPIO, "spi chipsel");

		if (ret < 0) {

			pr_err("cannot open spi chipsel gpio\n");

			gpio = -ENOSYS;

			return;

		} else {

			gpio = EVM_SPI_CS_GPIO;

			gpio_direction_output(gpio, 0);

		}

	}



	if (gpio < 0)

		return;



	return gpio_set_value(gpio, cs ? 1 : 0);

}



static struct ti_ssp_spi_data spi_master_data = {

	.num_cs	= 2,

	.select	= spi_select_device,

	.iosel	= SSP_PIN_SEL(0, SSP_CLOCK)	| SSP_PIN_SEL(1, SSP_DATA) |

		  SSP_PIN_SEL(2, SSP_CHIPSEL)	| SSP_PIN_SEL(3, SSP_IN)   |

		  SSP_INPUT_SEL(3),

};



static struct ti_ssp_data ssp_config = {

static struct ti_ssp_data ssp_config = {

	.out_clock	= 250 * 1000,

	.out_clock	= 250 * 1000,

	.dev_data	= {

	.dev_data	= {

		[1] = {

			.dev_name = "ti-ssp-spi",

			.pdata = &spi_master_data,

			.pdata_size = sizeof(spi_master_data),

		},

	},

	},

};

};
@@ -216,6 +254,9 @@ static struct tnetv107x_device_info evm_device_info __initconst = { 
	.ssp_config		= &ssp_config,

	.ssp_config		= &ssp_config,

};

};





static struct spi_board_info spi_info[] __initconst = {

};



static __init void tnetv107x_evm_board_init(void)

static __init void tnetv107x_evm_board_init(void)

{

{

	davinci_cfg_reg_list(sdio1_pins);

	davinci_cfg_reg_list(sdio1_pins);
@@ -223,6 +264,8 @@ static __init void tnetv107x_evm_board_init(void) 
	davinci_cfg_reg_list(ssp_pins);

	davinci_cfg_reg_list(ssp_pins);





	tnetv107x_devices_init(&evm_device_info);

	tnetv107x_devices_init(&evm_device_info);



	spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));

}

}





#ifdef CONFIG_SERIAL_8250_CONSOLE

#ifdef CONFIG_SERIAL_8250_CONSOLE