The DT used by U-Boot may be different from the DT being passed to the OS if the DT is loaded from external media such as network or mmc. In that case, the reserved-memory node needs to be copied to the DT passed to the OS.
Signed-off-by: Atish Patra atish.patra@wdc.com Reviewed-by: Bin Meng bmeng.cn@gmail.com --- arch/riscv/lib/bootm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/lib/bootm.c b/arch/riscv/lib/bootm.c index 87cadad5016d..8ff8db6bf533 100644 --- a/arch/riscv/lib/bootm.c +++ b/arch/riscv/lib/bootm.c @@ -28,8 +28,8 @@ __weak void board_quiesce_devices(void)
int arch_fixup_fdt(void *blob) { -#ifdef CONFIG_EFI_LOADER int err; +#ifdef CONFIG_EFI_LOADER u32 size; int chosen_offset;
@@ -50,6 +50,12 @@ int arch_fixup_fdt(void *blob) /* Overwrite the boot-hartid as U-Boot is the last stage BL */ fdt_setprop_u32(blob, chosen_offset, "boot-hartid", gd->arch.boot_hart); #endif + + /* Copy the reserved-memory node to the DT used by OS */ + err = riscv_fdt_copy_resv_mem_node(gd->fdt_blob, blob); + if (err < 0) + return err; + return 0; }