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am437x_epos_evm: add SPL API, QSPI, and serial flash support

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Enables support for SPI SPL, QSPI and Spansion serial flash device
on the EVM. Configures pin muxes for QSPI mode.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
This commit is contained in:
Sourav Poddar 2013-12-21 12:50:08 +05:30 committed by Jagannadha Sutradharudu Teki
parent b56e71e2d4
commit ea4c7a8321
2 changed files with 31 additions and 0 deletions
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11
board/ti/am43xx/mux.c
View file

@ -38,6 +38,16 @@ static struct module_pin_mux gpio0_22_pin_mux[] = {
{-1},
};
static struct module_pin_mux qspi_pin_mux[] = {
{OFFSET(gpmc_csn0), (MODE(3) | PULLUP_EN | RXACTIVE)}, /* QSPI_CS0 */
{OFFSET(gpmc_csn3), (MODE(2) | PULLUP_EN | RXACTIVE)}, /* QSPI_CLK */
{OFFSET(gpmc_advn_ale), (MODE(3) | PULLUP_EN | RXACTIVE)}, /* QSPI_D0 */
{OFFSET(gpmc_oen_ren), (MODE(3) | PULLUP_EN | RXACTIVE)}, /* QSPI_D1 */
{OFFSET(gpmc_wen), (MODE(3) | PULLUP_EN | RXACTIVE)}, /* QSPI_D2 */
{OFFSET(gpmc_be0n_cle), (MODE(3) | PULLUP_EN | RXACTIVE)}, /* QSPI_D3 */
{-1},
};
void enable_uart0_pin_mux(void)
{
configure_module_pin_mux(uart0_pin_mux);
@ -50,6 +60,7 @@ void enable_board_pin_mux(void)
if (board_is_gpevm())
configure_module_pin_mux(gpio0_22_pin_mux);
configure_module_pin_mux(qspi_pin_mux);
}
void enable_i2c0_pin_mux(void)

20
include/configs/am43xx_evm.h
View file

@ -84,6 +84,26 @@
#define CONFIG_OMAP_USB_PHY
#define CONFIG_AM437X_USB2PHY2_HOST
/* SPI */
#undef CONFIG_OMAP3_SPI
#define CONFIG_TI_QSPI
#define CONFIG_SPI_FLASH
#define CONFIG_SPI_FLASH_MACRONIX
#define CONFIG_CMD_SF
#define CONFIG_CMD_SPI
#define CONFIG_TI_SPI_MMAP
#define CONFIG_QSPI_SEL_GPIO 48
#define CONFIG_SF_DEFAULT_SPEED 48000000
#define CONFIG_DEFAULT_SPI_MODE SPI_MODE_3
/* SPI SPL */
#define CONFIG_SPL_SPI_SUPPORT
#define CONFIG_SPL_SPI_LOAD
#define CONFIG_SPL_SPI_FLASH_SUPPORT
#define CONFIG_SPL_SPI_BUS 0
#define CONFIG_SPL_SPI_CS 0
#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x20000
#ifndef CONFIG_SPL_BUILD
#define CONFIG_EXTRA_ENV_SETTINGS \
"loadaddr=0x80200000\0" \