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am335x evm: Enable support for spi0

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Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Tom Rini 2012-08-08 14:35:55 -07:00 committed by Albert ARIBAUD
parent 4c0620bf42
commit a4a99fffd8
3 changed files with 30 additions and 0 deletions
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11
board/ti/am335x/mux.c
View File

@ -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 */

10
drivers/spi/omap3_spi.c
View File

@ -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;

9
include/configs/am335x_evm.h
View File

@ -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