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ARM: imx: eukrea_mbimxsd35: add spi controler and spidev support

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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 09:20:19 +02:00 committed by Sascha Hauer
parent 4692cba14f
commit 0e189858ff
2 changed files with 43 additions and 0 deletions
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1
arch/arm/mach-imx/Kconfig
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@ -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

42
arch/arm/mach-imx/eukrea_mbimxsd35-baseboard.c
View File

@ -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);