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Commit 49ed9407 authored by Eric Bénard's avatar Eric Bénard Committed by Sascha Hauer
Browse files

ARM: imx: eukrea_mbimxsd25: 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 f381f9fc

arch/arm/mach-imx/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -181,6 +181,7 @@ config MACH_EUKREA_MBIMXSD25_BASEBOARD 
	bool "Eukrea MBIMXSD development board"

	select IMX_HAVE_PLATFORM_GPIO_KEYS

	select IMX_HAVE_PLATFORM_IMX_SSI

	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_mbimxsd25-baseboard.c

+42 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <linux/leds.h>

#include <linux/platform_device.h>

#include <linux/input.h>

#include <linux/spi/spi.h>

#include <video/platform_lcd.h>



#include <mach/hardware.h>
@@ -87,12 +88,22 @@ static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = { 
	/* CAN */

	MX25_PAD_GPIO_D__CAN2_RX,

	MX25_PAD_GPIO_C__CAN2_TX,

	/* SPI1 */

	MX25_PAD_CSPI1_MOSI__CSPI1_MOSI,

	MX25_PAD_CSPI1_MISO__CSPI1_MISO,

	MX25_PAD_CSPI1_SS0__GPIO_1_16,

	MX25_PAD_CSPI1_SS1__GPIO_1_17,

	MX25_PAD_CSPI1_SCLK__CSPI1_SCLK,

	MX25_PAD_CSPI1_RDY__GPIO_2_22,

};



#define GPIO_LED1	83

#define GPIO_SWITCH1	82

#define GPIO_SD1CD	52

#define GPIO_LCDPWR	26

#define	GPIO_SPI1_SS0	IMX_GPIO_NR(1, 16)

#define	GPIO_SPI1_SS1	IMX_GPIO_NR(1, 17)

#define	GPIO_SPI1_IRQ	IMX_GPIO_NR(2, 22)



static struct imx_fb_videomode eukrea_mximxsd_modes[] = {

	{
@@ -228,6 +239,30 @@ static struct esdhc_platform_data sd1_pdata = { 
	.wp_type = ESDHC_WP_NONE,

};



static struct spi_board_info eukrea_mbimxsd25_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_mbimxsd25_spi_cs[] = {GPIO_SPI1_SS0, GPIO_SPI1_SS1};



static const struct spi_imx_master eukrea_mbimxsd25_spi0_data __initconst = {

	.chipselect     = eukrea_mbimxsd25_spi_cs,

	.num_chipselect = ARRAY_SIZE(eukrea_mbimxsd25_spi_cs),

};



/*

 * system init for baseboard usage. Will be called by cpuimx25 init.

 *
@@ -262,6 +297,13 @@ void __init eukrea_mbimxsd25_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);

	imx25_add_spi_imx0(&eukrea_mbimxsd25_spi0_data);

	spi_register_board_info(eukrea_mbimxsd25_spi_board_info,

		ARRAY_SIZE(eukrea_mbimxsd25_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);