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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-11-08 16:20:54 -0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-11-28 08:28:53 +0100 |
| commit | 8bfa9c692e024bcf2b0b95be33adfa710301f83f (patch) | |
| tree | 387d6ff56f90c70db00df47b317c46ff74239a7e /board | |
| parent | b48e3b04101eaae7a40107c447ed377561021997 (diff) | |
| download | u-boot-imx-8bfa9c692e024bcf2b0b95be33adfa710301f83f.zip u-boot-imx-8bfa9c692e024bcf2b0b95be33adfa710301f83f.tar.gz u-boot-imx-8bfa9c692e024bcf2b0b95be33adfa710301f83f.tar.bz2 | |
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>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx6sabresd/mx6sabresd.c | 19 |
1 files changed, 19 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; } |