diff options
| author | Apurva Nandan <a-nandan@ti.com> | 2023-06-08 16:55:15 +0530 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2023-06-08 20:53:15 +0530 |
| commit | 2a3ea639e53ed76b7fdeb823d0d22074bad074a1 (patch) | |
| tree | a5f58298eab792be44ed6dfa3f5824787f1a752e | |
| parent | ac4935ce5897850227e4a991537f974b13704fc7 (diff) | |
board: ti: j721s2: Enable OSPI NAND SPL fixup
On J721S2, SW3.1 (WKUP_GPIO0_6) is used for selecting between
OSPI NOR and OSPI NAND flash. Read the GPIO state, to perform
correct enable/disable operation on the fdt, for a valid flash
discovery.
Signed-off-by: Apurva Nandan <a-nandan@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
| -rw-r--r-- | board/ti/j721s2/evm.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/board/ti/j721s2/evm.c b/board/ti/j721s2/evm.c index b920c441a9..66d5b219b5 100644 --- a/board/ti/j721s2/evm.c +++ b/board/ti/j721s2/evm.c @@ -73,6 +73,49 @@ int dram_init_banksize(void) return 0; } +#if CONFIG_IS_ENABLED(DM_GPIO) && CONFIG_IS_ENABLED(OF_LIBFDT) +/* Enables the spi-nand dts node, if onboard mux is set to spinand */ +static void __maybe_unused detect_enable_spinand(void *blob) +{ + struct gpio_desc desc = {0}; + char *ospi_mux_sel_gpio = "6"; + int offset; + + if (dm_gpio_lookup_name(ospi_mux_sel_gpio, &desc)) + return; + + if (dm_gpio_request(&desc, ospi_mux_sel_gpio)) + return; + + if (dm_gpio_set_dir_flags(&desc, GPIOD_IS_IN)) + return; + + if (dm_gpio_get_value(&desc)) { + offset = fdt_node_offset_by_compatible(blob, -1, "spi-nand"); + fdt_status_okay(blob, offset); + + offset = fdt_first_subnode(blob, + fdt_parent_offset(blob, offset)); + while (offset > 0) { + if (!fdt_node_check_compatible(blob, offset, + "jedec,spi-nor")) + fdt_status_disabled(blob, offset); + + offset = fdt_next_subnode(blob, offset); + } + } +} +#endif + +#if defined(CONFIG_SPL_BUILD) && (defined(CONFIG_TARGET_J721S2_A72_EVM) || \ + defined(CONFIG_TARGET_J721S2_R5_EVM)) +void spl_perform_fixups(struct spl_image_info *spl_image) +{ + if (IS_ENABLED(CONFIG_DM_GPIO) && IS_ENABLED(CONFIG_OF_LIBFDT)) + detect_enable_spinand(spl_image->fdt_addr); +} +#endif + #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) int ft_board_setup(void *blob, struct bd_info *bd) { @@ -85,6 +128,9 @@ int ft_board_setup(void *blob, struct bd_info *bd) if (ret) printf("%s: fixing up msmc ram failed %d\n", __func__, ret); + if (IS_ENABLED(CONFIG_DM_GPIO) && IS_ENABLED(CONFIG_OF_LIBFDT)) + detect_enable_spinand(blob); + return ret; } #endif |