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| author | Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> | 2010-10-27 16:40:54 +0400 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-11-24 11:57:15 +0300 |
| commit | c6e34a4cbe8d4e126c3f603d11cce6979952cbb1 (patch) | |
| tree | 1ff594500620afc6f40c105c90682ab3ee9fbd75 /arch | |
| parent | 0dea1c74642fb46cb94282719dafe7c2a7d3068f (diff) | |
| download | linux-c6e34a4cbe8d4e126c3f603d11cce6979952cbb1.tar.xz | |
efikamx: add spi nor support
On efikamx, uboot is stored on a nor spi flash. Add support for it
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-mx5/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 58 |
2 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig index 0345abe79e29..13602045df62 100644 --- a/arch/arm/mach-mx5/Kconfig +++ b/arch/arm/mach-mx5/Kconfig @@ -83,6 +83,7 @@ config MACH_MX51_EFIKAMX bool "Support MX51 Genesi Efika MX nettop" select IMX_HAVE_PLATFORM_ESDHC select IMX_HAVE_PLATFORM_IMX_UART + select IMX_HAVE_PLATFORM_SPI_IMX help Include support for Genesi Efika MX nettop. This includes specific configurations for the board and its peripherals. diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index 4d102ea22e70..f84452f8ef74 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -23,6 +23,8 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/fsl_devices.h> +#include <linux/spi/flash.h> +#include <linux/spi/spi.h> #include <mach/common.h> #include <mach/hardware.h> @@ -51,6 +53,9 @@ #define EFIKAMX_POWER_KEY (1*32 + 31) +#define EFIKAMX_SPI_CS0 (3*32 + 24) +#define EFIKAMX_SPI_CS1 (3*32 + 25) + /* the pci ids pin have pull up. they're driven low according to board id */ #define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) @@ -97,6 +102,14 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { /* power key */ MX51_PAD_PWRKEY, + + /* spi */ + MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, + MX51_PAD_CSPI1_MISO__ECSPI1_MISO, + MX51_PAD_CSPI1_SS0__GPIO_4_24, + MX51_PAD_CSPI1_SS1__GPIO_4_25, + MX51_PAD_CSPI1_RDY__ECSPI1_RDY, + MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, }; /* Serial ports */ @@ -242,6 +255,47 @@ static const struct gpio_keys_platform_data mx51_efikamx_powerkey_data __initcon .nbuttons = ARRAY_SIZE(mx51_efikamx_powerkey), }; +static struct mtd_partition mx51_efikamx_spi_nor_partitions[] = { + { + .name = "u-boot", + .offset = 0, + .size = SZ_256K, + }, + { + .name = "config", + .offset = MTDPART_OFS_APPEND, + .size = SZ_64K, + }, +}; + +static struct flash_platform_data mx51_efikamx_spi_flash_data = { + .name = "spi_flash", + .parts = mx51_efikamx_spi_nor_partitions, + .nr_parts = ARRAY_SIZE(mx51_efikamx_spi_nor_partitions), + .type = "sst25vf032b", +}; + +static struct spi_board_info mx51_efikamx_spi_board_info[] __initdata = { + { + .modalias = "m25p80", + .max_speed_hz = 25000000, + .bus_num = 0, + .chip_select = 1, + .platform_data = &mx51_efikamx_spi_flash_data, + .irq = -1, + }, +}; + +static int mx51_efikamx_spi_cs[] = { + EFIKAMX_SPI_CS0, + EFIKAMX_SPI_CS1, +}; + +static const struct spi_imx_master mx51_efikamx_spi_pdata __initconst = { + .chipselect = mx51_efikamx_spi_cs, + .num_chipselect = ARRAY_SIZE(mx51_efikamx_spi_cs), +}; + static void __init mxc_board_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, @@ -259,6 +313,10 @@ static void __init mxc_board_init(void) platform_device_register(&mx51_efikamx_leds_device); imx51_add_gpio_keys(&mx51_efikamx_powerkey_data); + + spi_register_board_info(mx51_efikamx_spi_board_info, + ARRAY_SIZE(mx51_efikamx_spi_board_info)); + imx51_add_ecspi(0, &mx51_efikamx_spi_pdata); } static void __init mx51_efikamx_timer_init(void) |