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Commit 0e189858 authored by Eric Bénard's avatar Eric Bénard Committed by Sascha Hauer
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ARM: imx: eukrea_mbimxsd35: add spi controler and spidev support 



Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent 4692cba1

arch/arm/mach-imx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -608,6 +608,7 @@ config MACH_EUKREA_MBIMXSD35_BASEBOARD 
	select IMX_HAVE_PLATFORM_GPIO_KEYS

	select IMX_HAVE_PLATFORM_IMX_SSI

	select IMX_HAVE_PLATFORM_IPU_CORE

	select IMX_HAVE_PLATFORM_SPI_IMX

	select LEDS_GPIO_REGISTER

	help

	  This adds board specific devices that can be found on Eukrea's

arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c

+42 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/leds.h>

#include <linux/platform_device.h>

#include <linux/input.h>

#include <linux/spi/spi.h>

#include <video/platform_lcd.h>

#include <linux/i2c.h>
@@ -158,12 +159,22 @@ static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = { 
	MX35_PAD_SD1_DATA3__ESDHC1_DAT3,

	/* SD1 CD */

	MX35_PAD_LD18__GPIO3_24,

	/* SPI */

	MX35_PAD_CSPI1_MOSI__CSPI1_MOSI,

	MX35_PAD_CSPI1_MISO__CSPI1_MISO,

	MX35_PAD_CSPI1_SS0__GPIO1_18,

	MX35_PAD_CSPI1_SS1__GPIO1_19,

	MX35_PAD_CSPI1_SCLK__CSPI1_SCLK,

	MX35_PAD_CSPI1_SPI_RDY__GPIO3_5,

};



#define GPIO_LED1	IMX_GPIO_NR(3, 29)

#define GPIO_SWITCH1	IMX_GPIO_NR(3, 25)

#define GPIO_LCDPWR	IMX_GPIO_NR(1, 4)

#define GPIO_SD1CD	IMX_GPIO_NR(3, 24)

#define	GPIO_SPI1_SS0	IMX_GPIO_NR(1, 18)

#define	GPIO_SPI1_SS1	IMX_GPIO_NR(1, 19)

#define	GPIO_SPI1_IRQ	IMX_GPIO_NR(3, 5)



static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,

				   unsigned int power)
@@ -239,6 +250,30 @@ static struct esdhc_platform_data sd1_pdata = { 
	.wp_type = ESDHC_WP_NONE,

};



static struct spi_board_info eukrea_mbimxsd35_spi_board_info[] __initdata = {

	{

		.modalias = "spidev",

		.max_speed_hz = 20000000,

		.bus_num = 0,

		.chip_select = 0,

		.mode = SPI_MODE_0,

	},

	{

		.modalias = "spidev",

		.max_speed_hz = 20000000,

		.bus_num = 0,

		.chip_select = 1,

		.mode = SPI_MODE_0,

	},

};



static int eukrea_mbimxsd35_spi_cs[] = {GPIO_SPI1_SS0, GPIO_SPI1_SS1};



static const struct spi_imx_master eukrea_mbimxsd35_spi0_data __initconst = {

	.chipselect     = eukrea_mbimxsd35_spi_cs,

	.num_chipselect = ARRAY_SIZE(eukrea_mbimxsd35_spi_cs),

};



/*

 * system init for baseboard usage. Will be called by cpuimx35 init.

 *
@@ -274,6 +309,13 @@ void __init eukrea_mbimxsd35_baseboard_init(void) 
	i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,

				ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));



	gpio_request(GPIO_SPI1_IRQ, "SPI1_IRQ");

	gpio_direction_input(GPIO_SPI1_IRQ);

	gpio_free(GPIO_SPI1_IRQ);

	imx35_add_spi_imx0(&eukrea_mbimxsd35_spi0_data);

	spi_register_board_info(eukrea_mbimxsd35_spi_board_info,

		ARRAY_SIZE(eukrea_mbimxsd35_spi_board_info));



	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));

	gpio_led_register_device(-1, &eukrea_mbimxsd_led_info);

	imx_add_gpio_keys(&eukrea_mbimxsd_button_data);