diff options
| author | Ye Li <ye.li@nxp.com> | 2023-01-31 16:42:34 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2023-03-29 20:15:43 +0200 |
| commit | 4dfb2196cdced30d9404080584746e4205f561b1 (patch) | |
| tree | 6980a7262b3b8b6bd447f42653799f449130fa51 | |
| parent | 9b7e39b6c1ff40a8336328708727394ae8a107e5 (diff) | |
imx8ulp_evk: Clear data at fdt_addr_r before booting kernel
When using dual boot mode, the DDR won't be reset when APD power off
or reboot. It has possibility that obsolete fdt data existing on
fdt_addr_r address. Then even nothing in EFI partitions, the distro boot
still continue to parse fdt and get uboot crashed.
Clear the data at fdt_addr_r, so the fdt header check in above case
will not pass.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
| -rw-r--r-- | board/freescale/imx8ulp_evk/imx8ulp_evk.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/board/freescale/imx8ulp_evk/imx8ulp_evk.c b/board/freescale/imx8ulp_evk/imx8ulp_evk.c index b58f143f6ea..dd04d5925a0 100644 --- a/board/freescale/imx8ulp_evk/imx8ulp_evk.c +++ b/board/freescale/imx8ulp_evk/imx8ulp_evk.c @@ -121,8 +121,16 @@ int board_early_init_f(void) int board_late_init(void) { + ulong addr; + #if CONFIG_IS_ENABLED(ENV_IS_IN_MMC) board_late_mmc_env_init(); #endif + + /* clear fdtaddr to avoid obsolete data */ + addr = env_get_hex("fdt_addr_r", 0); + if (addr) + memset((void *)addr, 0, 0x400); + return 0; } |