diff mbox series

[v7,5/6] riscv: Copy the reserved-memory nodes to final DT

Message ID 20200421181504.415822-6-atish.patra@wdc.com
State Superseded
Headers show
Series RISC-V DT related fixes for reserved memory & UEFI | expand

Commit Message

Atish Patra April 21, 2020, 6:15 p.m. UTC 
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 at wdc.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
Tested-by: Bin Meng <bmeng.cn at gmail.com>
---
 arch/riscv/lib/bootm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

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;
 }