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authorFabio Estevam <fabio.estevam@freescale.com>2013-11-08 16:20:54 -0200
committerStefano Babic <sbabic@denx.de>2013-11-28 08:28:53 +0100
commit8bfa9c692e024bcf2b0b95be33adfa710301f83f (patch)
tree387d6ff56f90c70db00df47b317c46ff74239a7e
parentb48e3b04101eaae7a40107c447ed377561021997 (diff)
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mx6sabresd: Add SPI NOR support
mx6sabre board has a m25p32 SPI NOR connected to ECSPI1 port. Add support for it. This patch allows the SPI NOR flash to be succesfully detected: => sf probe SF: Detected M25P32 with page size 256 Bytes, erase size 64 KiB, total 4 MiB Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
-rw-r--r--board/freescale/mx6sabresd/mx6sabresd.c19
-rw-r--r--include/configs/mx6sabre_common.h12
2 files changed, 31 insertions, 0 deletions
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index db9fdff..851cbe9 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -37,6 +37,9 @@ DECLARE_GLOBAL_DATA_PTR;
#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -120,6 +123,18 @@ iomux_v3_cfg_t const usdhc4_pads[] = {
MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
+iomux_v3_cfg_t const ecspi1_pads[] = {
+ MX6_PAD_KEY_COL0__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_KEY_COL1__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_KEY_ROW0__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+ MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static void setup_spi(void)
+{
+ imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
+}
+
static void setup_iomux_uart(void)
{
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
@@ -455,6 +470,10 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+#ifdef CONFIG_MXC_SPI
+ setup_spi();
+#endif
+
return 0;
}
diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h
index 79d1f34..d52c9a8 100644
--- a/include/configs/mx6sabre_common.h
+++ b/include/configs/mx6sabre_common.h
@@ -18,6 +18,7 @@
#define CONFIG_DISPLAY_BOARDINFO
#include <asm/arch/imx-regs.h>
+#include <asm/imx-common/gpio.h>
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
@@ -60,6 +61,17 @@
#define CONFIG_PHYLIB
#define CONFIG_PHY_ATHEROS
+#define CONFIG_CMD_SF
+#ifdef CONFIG_CMD_SF
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_STMICRO
+#define CONFIG_MXC_SPI
+#define CONFIG_SF_DEFAULT_BUS 0
+#define CONFIG_SF_DEFAULT_CS (0 | (IMX_GPIO_NR(4, 9) << 8))
+#define CONFIG_SF_DEFAULT_SPEED 20000000
+#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
+#endif
+
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1