board/ti/am43xx: add support for parallel NAND

[karo-tx-uboot.git] / board / ti / am43xx / mux.c

diff --git a/board/ti/am43xx/mux.c b/board/ti/am43xx/mux.c
index 50967e1a82b74ac318be74a60680fd05f90b3ce0..a670b0b2ff441e2b64951e8d0edc5ece1612ed83 100644 (file)
--- a/board/ti/am43xx/mux.c
+++ b/board/ti/am43xx/mux.c
@@ -73,7 +73,38 @@ static struct module_pin_mux gpio5_7_pin_mux[] = {
        {-1},
 };
 
-static struct module_pin_mux qspi_pin_mux[] = {
+#ifdef CONFIG_NAND
+static struct module_pin_mux nand_pin_mux[] = {
+       {OFFSET(gpmc_ad0),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD0 */
+       {OFFSET(gpmc_ad1),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD1 */
+       {OFFSET(gpmc_ad2),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD2 */
+       {OFFSET(gpmc_ad3),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD3 */
+       {OFFSET(gpmc_ad4),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD4 */
+       {OFFSET(gpmc_ad5),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD5 */
+       {OFFSET(gpmc_ad6),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD6 */
+       {OFFSET(gpmc_ad7),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD7 */
+#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT
+       {OFFSET(gpmc_ad8),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD8  */
+       {OFFSET(gpmc_ad9),      (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD9  */
+       {OFFSET(gpmc_ad10),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD10 */
+       {OFFSET(gpmc_ad11),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD11 */
+       {OFFSET(gpmc_ad12),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD12 */
+       {OFFSET(gpmc_ad13),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD13 */
+       {OFFSET(gpmc_ad14),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD14 */
+       {OFFSET(gpmc_ad15),     (MODE(0) | PULLUDDIS | RXACTIVE)}, /* AD15 */
+#endif
+       {OFFSET(gpmc_wait0),    (MODE(0) | RXACTIVE | PULLUP_EN)}, /* Wait */
+       {OFFSET(gpmc_wpn),      (MODE(7) | PULLUP_EN)}, /* Write Protect */
+       {OFFSET(gpmc_csn0),     (MODE(0) | PULLUP_EN)}, /* Chip-Select */
+       {OFFSET(gpmc_wen),      (MODE(0) | PULLDOWN_EN)}, /* Write Enable */
+       {OFFSET(gpmc_oen_ren),  (MODE(0) | PULLDOWN_EN)}, /* Read Enable */
+       {OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)}, /* Addr Latch Enable*/
+       {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)}, /* Byte Enable */
+       {-1},
+};
+#endif
+
+static __maybe_unused 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 */
@@ -97,12 +128,22 @@ void enable_board_pin_mux(void)
        if (board_is_gpevm()) {
                configure_module_pin_mux(gpio5_7_pin_mux);
                configure_module_pin_mux(rgmii1_pin_mux);
+#if defined(CONFIG_NAND)
+               configure_module_pin_mux(nand_pin_mux);
+#endif
        } else if (board_is_sk()) {
                configure_module_pin_mux(rgmii1_pin_mux);
+#if defined(CONFIG_NAND)
+               printf("Error: NAND flash not present on this board\n");
+#endif
                configure_module_pin_mux(qspi_pin_mux);
        } else if (board_is_eposevm()) {
                configure_module_pin_mux(rmii1_pin_mux);
+#if defined(CONFIG_NAND)
+               configure_module_pin_mux(nand_pin_mux);
+#else
                configure_module_pin_mux(qspi_pin_mux);
+#endif
        }
 }