diff options
| -rw-r--r-- | board/freescale/mx28evk/iomux.c | 8 | ||||
| -rw-r--r-- | include/configs/mx28evk.h | 44 |
2 files changed, 49 insertions, 3 deletions
diff --git a/board/freescale/mx28evk/iomux.c b/board/freescale/mx28evk/iomux.c index 904e3f3..396761b 100644 --- a/board/freescale/mx28evk/iomux.c +++ b/board/freescale/mx28evk/iomux.c @@ -28,6 +28,7 @@ #define MUX_CONFIG_SSP0 (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) #define MUX_CONFIG_ENET (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP) #define MUX_CONFIG_EMI (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_NOPULL) +#define MUX_CONFIG_SSP2 (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP) const iomux_cfg_t iomux_setup[] = { /* DUART */ @@ -130,6 +131,13 @@ const iomux_cfg_t iomux_setup[] = { MX28_PAD_EMI_CE0N__EMI_CE0N | MUX_CONFIG_EMI, MX28_PAD_EMI_CE1N__EMI_CE1N | MUX_CONFIG_EMI, MX28_PAD_EMI_CKE__EMI_CKE | MUX_CONFIG_EMI, + + /* SPI2 (for SPI flash) */ + MX28_PAD_SSP2_SCK__SSP2_SCK | MUX_CONFIG_SSP2, + MX28_PAD_SSP2_MOSI__SSP2_CMD | MUX_CONFIG_SSP2, + MX28_PAD_SSP2_MISO__SSP2_D0 | MUX_CONFIG_SSP2, + MX28_PAD_SSP2_SS0__SSP2_D3 | + (MXS_PAD_3V3 | MXS_PAD_8MA | MXS_PAD_PULLUP), }; void board_init_ll(void) diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h index 8f791aa..04967d7 100644 --- a/include/configs/mx28evk.h +++ b/include/configs/mx28evk.h @@ -64,6 +64,8 @@ #define CONFIG_CMD_NET #define CONFIG_CMD_NFS #define CONFIG_CMD_PING +#define CONFIG_CMD_SF +#define CONFIG_CMD_SPI #define CONFIG_CMD_USB /* @@ -127,9 +129,11 @@ * MMC Driver */ #define CONFIG_ENV_IS_IN_MMC -#define CONFIG_ENV_OFFSET (256 * 1024) -#define CONFIG_ENV_SIZE (16 * 1024) -#define CONFIG_SYS_MMC_ENV_DEV 0 +#ifdef CONFIG_ENV_IS_IN_MMC + #define CONFIG_ENV_OFFSET (256 * 1024) + #define CONFIG_ENV_SIZE (16 * 1024) + #define CONFIG_SYS_MMC_ENV_DEV 0 +#endif #define CONFIG_CMD_SAVEENV #ifdef CONFIG_CMD_MMC #define CONFIG_MMC @@ -170,6 +174,40 @@ #endif /* + * SPI + */ +#ifdef CONFIG_CMD_SPI +#define CONFIG_HARD_SPI +#define CONFIG_MXS_SPI +#define CONFIG_SPI_HALF_DUPLEX +#define CONFIG_DEFAULT_SPI_BUS 2 +#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_0 + +/* SPI Flash */ +#ifdef CONFIG_CMD_SF +#define CONFIG_SPI_FLASH +/* this may vary and depends on the installed chip */ +#define CONFIG_SPI_FLASH_SST +#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 +#define CONFIG_SF_DEFAULT_SPEED 24000000 + +/* (redundant) environemnt in SPI flash */ +#undef CONFIG_ENV_IS_IN_SPI_FLASH +#ifdef CONFIG_ENV_IS_IN_SPI_FLASH +#define CONFIG_SYS_REDUNDAND_ENVIRONMENT +#define CONFIG_ENV_SIZE 0x1000 /* 4KB */ +#define CONFIG_ENV_OFFSET 0x40000 /* 256K */ +#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) +#define CONFIG_ENV_SECT_SIZE 0x1000 +#define CONFIG_ENV_SPI_CS 0 +#define CONFIG_ENV_SPI_BUS 2 +#define CONFIG_ENV_SPI_MAX_HZ 24000000 +#define CONFIG_ENV_SPI_MODE SPI_MODE_0 +#endif +#endif +#endif + +/* * Boot Linux */ #define CONFIG_CMDLINE_TAG |