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ARM: imx: eukrea_mbimxsd25: add spi controler and spidev support 

Signed-off-by: Eric Bénard <eric@eukrea.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Eric Bénard 2012-05-08 09:20:17 +02:00 committed by Sascha Hauer
parent f381f9fc7b
commit 49ed94075c
2 changed files with 43 additions and 0 deletions
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1
arch/arm/mach-imx/Kconfig
View File

@ -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

42
arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
View File

@ -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);