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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>
This commit is contained in:
Arnaud Patard (Rtp) 2010-10-27 14:40:54 +02:00 committed by Sascha Hauer
parent 0dea1c7464
commit c6e34a4cbe
2 changed files with 59 additions and 0 deletions
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1
arch/arm/mach-mx5/Kconfig
View File

@ -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.

58
arch/arm/mach-mx5/board-mx51_efikamx.c
View File

@ -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)