From: Fabio Estevam fabio.estevam@freescale.com
mx6slevk has a m25p32 SPI NOR flash connected to ESCSPI port.
Add support for it.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- arch/arm/include/asm/arch-mx6/mx6sl_pins.h | 4 ++++ board/freescale/mx6slevk/mx6slevk.c | 20 ++++++++++++++++++++ include/configs/mx6slevk.h | 12 ++++++++++++ 3 files changed, 36 insertions(+)
diff --git a/arch/arm/include/asm/arch-mx6/mx6sl_pins.h b/arch/arm/include/asm/arch-mx6/mx6sl_pins.h index 5f9c90a..045ccc4 100644 --- a/arch/arm/include/asm/arch-mx6/mx6sl_pins.h +++ b/arch/arm/include/asm/arch-mx6/mx6sl_pins.h @@ -10,6 +10,10 @@ #include <asm/imx-common/iomux-v3.h>
enum { + MX6_PAD_ECSPI1_MISO__ECSPI_MISO = IOMUX_PAD(0x0358, 0x0068, 0, 0x0684, 0, 0), + MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI = IOMUX_PAD(0x035C, 0x006C, 0, 0x0688, 0, 0), + MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK = IOMUX_PAD(0x0360, 0x0070, 0, 0x067C, 0, 0), + MX6_PAD_ECSPI1_SS0__GPIO4_IO11 = IOMUX_PAD(0x0364, 0x0074, 5, 0x0000, 0, 0), MX6_PAD_SD2_CLK__USDHC2_CLK = IOMUX_PAD(0x055C, 0x0254, 0, 0x0000, 0, 0), MX6_PAD_SD2_CMD__USDHC2_CMD = IOMUX_PAD(0x0560, 0x0258, 0, 0x0000, 0, 0), MX6_PAD_SD2_DAT0__USDHC2_DAT0 = IOMUX_PAD(0x0564, 0x025C, 0, 0x0000, 0, 0), diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c index aadad32..d2b64cc 100644 --- a/board/freescale/mx6slevk/mx6slevk.c +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -34,6 +34,9 @@ DECLARE_GLOBAL_DATA_PTR; 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) + #define ETH_PHY_RESET IMX_GPIO_NR(4, 21)
int dram_init(void) @@ -71,6 +74,20 @@ static iomux_v3_cfg_t const fec_pads[] = { MX6_PAD_FEC_TX_CLK__GPIO_4_21 | MUX_PAD_CTRL(NO_PAD_CTRL), };
+#ifdef CONFIG_MXC_SPI +static iomux_v3_cfg_t ecspi1_pads[] = { + MX6_PAD_ECSPI1_MISO__ECSPI_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL), + MX6_PAD_ECSPI1_SS0__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static void setup_spi(void) +{ + imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads)); +} +#endif + static void setup_iomux_uart(void) { imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads)); @@ -132,6 +149,9 @@ static int setup_fec(void) int board_early_init_f(void) { setup_iomux_uart(); +#ifdef CONFIG_MXC_SPI + setup_spi(); +#endif return 0; }
diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h index 1876dbf..3d05a64 100644 --- a/include/configs/mx6slevk.h +++ b/include/configs/mx6slevk.h @@ -10,6 +10,7 @@ #define __CONFIG_H
#include <asm/arch/imx-regs.h> +#include <asm/imx-common/gpio.h> #include <linux/sizes.h> #include "mx6_common.h"
@@ -196,4 +197,15 @@ #define CONFIG_CMD_CACHE #endif
+#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, 11) << 8)) +#define CONFIG_SF_DEFAULT_SPEED 20000000 +#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 +#endif + #endif /* __CONFIG_H */