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 --- board/freescale/imx8ulp_evk/imx8ulp_evk.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/board/freescale/imx8ulp_evk/imx8ulp_evk.c b/board/freescale/imx8ulp_evk/imx8ulp_evk.c index b58f143..dd04d59 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; }