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| author | Tom Rini <trini@ti.com> | 2012-08-08 14:35:55 -0700 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-09-01 14:58:19 +0200 |
| commit | a4a99fffd8a006d99958e5bcded36d7e7218bd36 (patch) | |
| tree | 66c7a842c1a7890688cd0d7b04fc503f106efb33 | |
| parent | 4c0620bf42172325ea0c6afa0fdd362bb264e31b (diff) | |
| download | u-boot-imx-a4a99fffd8a006d99958e5bcded36d7e7218bd36.zip u-boot-imx-a4a99fffd8a006d99958e5bcded36d7e7218bd36.tar.gz u-boot-imx-a4a99fffd8a006d99958e5bcded36d7e7218bd36.tar.bz2 | |
am335x evm: Enable support for spi0
Signed-off-by: Tom Rini <trini@ti.com>
| -rw-r--r-- | board/ti/am335x/mux.c | 11 | ||||
| -rw-r--r-- | drivers/spi/omap3_spi.c | 10 | ||||
| -rw-r--r-- | include/configs/am335x_evm.h | 9 |
3 files changed, 30 insertions, 0 deletions
diff --git a/board/ti/am335x/mux.c b/board/ti/am335x/mux.c index 992f9ba..80becd5 100644 --- a/board/ti/am335x/mux.c +++ b/board/ti/am335x/mux.c @@ -310,6 +310,16 @@ static struct module_pin_mux i2c1_pin_mux[] = { {-1}, }; +static struct module_pin_mux spi0_pin_mux[] = { + {OFFSET(spi0_sclk), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_SCLK */ + {OFFSET(spi0_d0), (MODE(0) | RXACTIVE | + PULLUDEN | PULLUP_EN)}, /* SPI0_D0 */ + {OFFSET(spi0_d1), (MODE(0) | RXACTIVE | PULLUDEN)}, /* SPI0_D1 */ + {OFFSET(spi0_cs0), (MODE(0) | RXACTIVE | + PULLUDEN | PULLUP_EN)}, /* SPI0_CS0 */ + {-1}, +}; + static struct module_pin_mux gpio0_7_pin_mux[] = { {OFFSET(ecap0_in_pwm0_out), (MODE(7) | PULLUDEN)}, /* GPIO0_7 */ {-1}, @@ -430,6 +440,7 @@ void enable_board_pin_mux(struct am335x_baseboard_id *header) configure_module_pin_mux(i2c1_pin_mux); else if (profile == PROFILE_2) { configure_module_pin_mux(mmc1_pin_mux); + configure_module_pin_mux(spi0_pin_mux); } } else if (!strncmp(header->name, "A335X_SK", HDR_NAME_LEN)) { /* Starter Kit EVM */ diff --git a/drivers/spi/omap3_spi.c b/drivers/spi/omap3_spi.c index 47f9e56..e40a632 100644 --- a/drivers/spi/omap3_spi.c +++ b/drivers/spi/omap3_spi.c @@ -173,8 +173,18 @@ int spi_claim_bus(struct spi_slave *slave) /* standard 4-wire master mode: SCK, MOSI/out, MISO/in, nCS * REVISIT: this controller could support SPI_3WIRE mode. */ +#ifdef CONFIG_AM33XX + /* + * The reference design on AM33xx has D0 and D1 wired up opposite + * of how it has been done on previous platforms. We assume that + * custom hardware will also follow this convention. + */ + conf &= OMAP3_MCSPI_CHCONF_DPE0; + conf |= ~(OMAP3_MCSPI_CHCONF_IS|OMAP3_MCSPI_CHCONF_DPE1); +#else conf &= ~(OMAP3_MCSPI_CHCONF_IS|OMAP3_MCSPI_CHCONF_DPE1); conf |= OMAP3_MCSPI_CHCONF_DPE0; +#endif /* wordlength */ conf &= ~OMAP3_MCSPI_CHCONF_WL_MASK; diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index c827ebf..2bfe8c6 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -134,6 +134,14 @@ #define CONFIG_CMD_FAT #define CONFIG_CMD_EXT2 +#define CONFIG_SPI +#define CONFIG_OMAP3_SPI +#define CONFIG_MTD_DEVICE +#define CONFIG_SPI_FLASH +#define CONFIG_SPI_FLASH_WINBOND +#define CONFIG_CMD_SF +#define CONFIG_SF_DEFAULT_SPEED (24000000) + /* Physical Memory Map */ #define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of DRAM */ #define PHYS_DRAM_1 0x80000000 /* DRAM Bank #1 */ @@ -163,6 +171,7 @@ #define CONFIG_I2C_MULTI_BUS #define CONFIG_DRIVER_OMAP24XX_I2C #define CONFIG_CMD_EEPROM +#define CONFIG_ENV_EEPROM_IS_ON_I2C #define CONFIG_SYS_I2C_EEPROM_ADDR 0x50 /* Main EEPROM */ #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 2 #define CONFIG_SYS_I2C_MULTI_EEPROMS |