diff options
Diffstat (limited to 'arch/arm/mach-imx/imx9/soc.c')
| -rw-r--r-- | arch/arm/mach-imx/imx9/soc.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c index 8b620832b5..9ea2d51495 100644 --- a/arch/arm/mach-imx/imx9/soc.c +++ b/arch/arm/mach-imx/imx9/soc.c @@ -29,6 +29,43 @@ DECLARE_GLOBAL_DATA_PTR; +struct rom_api *g_rom_api = (struct rom_api *)0x1980; + +#ifdef CONFIG_ENV_IS_IN_MMC +__weak int board_mmc_get_env_dev(int devno) +{ + return devno; } + +int mmc_get_env_dev(void) +{ + volatile gd_t *pgd = gd; + int ret; + u32 boot; + u16 boot_type; + u8 boot_instance; + + ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot, + ((uintptr_t)&boot) ^ QUERY_BT_DEV); + set_gd(pgd); + + if (ret != ROM_API_OKAY) { + puts("ROMAPI: failure at query_boot_info\n"); + return CONFIG_SYS_MMC_ENV_DEV; + } + + boot_type = boot >> 16; + boot_instance = (boot >> 8) & 0xff; + + debug("boot_type %d, instance %d\n", boot_type, boot_instance); + + /* If not boot from sd/mmc, use default value */ + if (boot_type != BOOT_TYPE_SD && boot_type != BOOT_TYPE_MMC) + return env_get_ulong("mmcdev", 10, CONFIG_SYS_MMC_ENV_DEV); + + return board_mmc_get_env_dev(boot_instance); +} +#endif + u32 get_cpu_rev(void) { return (MXC_CPU_IMX93 << 12) | CHIP_REV_1_0; |