[PATCH] sifive-unleashed: Stop disabling device tree relocation

Tom Rini trini at konsulko.com
Wed Nov 19 15:55:36 CET 2025


Remove setting of fdt_high to ~0, which disables device tree relocation,
from the default environment. Doing so prevents U-Boot from correcting
problems such as having an unaligned device tree and leads to various
failure modes in the OS.

Signed-off-by: Tom Rini <trini at konsulko.com>
---
If there is some window of memory that must be used for where the device
tree is relocated to, bootm_low + bootm_size (or often just bootm_size)
or bootm_mapsize are the correct way do this. Please see
doc/usage/environment.rst for more details.

Cc: Paul Walmsley <paul.walmsley at sifive.com>
Cc: Palmer Dabbelt <palmer at dabbelt.com>
Cc: Anup Patel <anup at brainfault.org>
Cc: Atish Patra <atishp at atishpatra.org>

 include/configs/sifive-unleashed.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/configs/sifive-unleashed.h b/include/configs/sifive-unleashed.h
index cd8d0438ba67..862c24570245 100644
--- a/include/configs/sifive-unleashed.h
+++ b/include/configs/sifive-unleashed.h
@@ -37,7 +37,6 @@
 	"name=system,size=-,bootable,type=${type_guid_gpt_system};"
 
 #define CFG_EXTRA_ENV_SETTINGS \
-	"fdt_high=0xffffffffffffffff\0" \
 	"initrd_high=0xffffffffffffffff\0" \
 	"kernel_addr_r=0x84000000\0" \
 	"kernel_comp_addr_r=0x88000000\0" \
-- 
2.43.0



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