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authorArnaud Patard (Rtp) <arnaud.patard@rtp-net.org>2010-10-27 14:40:54 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2010-11-24 09:57:15 +0100
commitc6e34a4cbe8d4e126c3f603d11cce6979952cbb1 (patch)
tree1ff594500620afc6f40c105c90682ab3ee9fbd75 /arch/arm/mach-mx5
parent0dea1c74642fb46cb94282719dafe7c2a7d3068f (diff)
downloadblackbird-op-linux-c6e34a4cbe8d4e126c3f603d11cce6979952cbb1.tar.gz
blackbird-op-linux-c6e34a4cbe8d4e126c3f603d11cce6979952cbb1.zip
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/arm/mach-mx5')
-rw-r--r--arch/arm/mach-mx5/Kconfig1
-rw-r--r--arch/arm/mach-mx5/board-mx51_efikamx.c58
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)
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