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authorSourav Poddar <sourav.poddar@ti.com>2013-12-21 12:50:08 +0530
committerJagannadha Sutradharudu Teki <jaganna@xilinx.com>2014-02-18 22:41:09 +0530
commitea4c7a8321427dd9d579fd449e32b1dcb066dab7 (patch)
tree30be24eb2bccd5a517ed9c86cd919ea6a0d9685d
parentb56e71e2d41f4921ba69531978d4857bbd9366fa (diff)
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am437x_epos_evm: add SPL API, QSPI, and serial flash support
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>
-rw-r--r--board/ti/am43xx/mux.c11
-rw-r--r--include/configs/am43xx_evm.h20
2 files changed, 31 insertions, 0 deletions
diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c
index 810b194..f96c56f 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 f45deeb..bef46bd 100644
--- a/include/configs/am43xx_evm.h
+++ b/include/configs/am43xx_evm.h
@@ -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" \