From: "Poddar, Sourav" sourav.poddar@ti.com
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 --- board/ti/am43xx/mux.c | 11 +++++++++++ include/configs/am43xx_evm.h | 20 ++++++++++++++++++++ 2 files changed, 31 insertions(+), 0 deletions(-)
diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c index 810b194..4db3d78 100644 --- a/board/ti/am43xx/mux.c +++ b/board/ti/am43xx/mux.c @@ -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) diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h index 4de495a..a81c586 100644 --- a/include/configs/am43xx_evm.h +++ b/include/configs/am43xx_evm.h @@ -79,6 +79,26 @@ #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" \