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Message-Id: <1323757911-25217-4-git-send-email-eric@eukrea.com>
Date: Tue, 13 Dec 2011 07:31:36 +0100
From: Eric Bénard <eric@...rea.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: Sascha Hauer <kernel@...gutronix.de>,
Russell King <linux@....linux.org.uk> (maintainer:ARM PORT),
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 04/19] mbimxsd25: add spi controler and spidev support
Signed-off-by: Eric Bénard <eric@...rea.com>
Cc: Sascha Hauer <kernel@...gutronix.de>
---
arch/arm/mach-imx/Kconfig | 1 +
arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c | 39 ++++++++++++++++++++++++
2 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index d2c24d5..65a7e57 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -155,6 +155,7 @@ 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
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
index 66e8726..91fb5b8 100644
--- a/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
+++ b/arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c
@@ -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>
@@ -88,12 +89,22 @@ 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[] = {
{
@@ -229,6 +240,30 @@ 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.
*
@@ -279,6 +314,10 @@ void __init eukrea_mbimxsd25_baseboard_init(void)
i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
+ 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);
--
1.7.6.4
--
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