[PATCH] tegra: Stop disabling device tree relocation

Tom Rini trini at konsulko.com
Wed Nov 19 15:55:40 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: Svyatoslav Ryhel <clamor95 at gmail.com>
Cc: Thierry Reding <treding at nvidia.com>
---
 include/configs/tegra-common-post.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/configs/tegra-common-post.h b/include/configs/tegra-common-post.h
index 2f08dfed020f..a9c0cea4e149 100644
--- a/include/configs/tegra-common-post.h
+++ b/include/configs/tegra-common-post.h
@@ -50,17 +50,14 @@
 #endif
 
 #ifdef CONFIG_ARM64
-#define FDT_HIGH "ffffffffffffffff"
 #define INITRD_HIGH "ffffffffffffffff"
 #else
-#define FDT_HIGH "ffffffff"
 #define INITRD_HIGH "ffffffff"
 #endif
 
 #define CFG_EXTRA_ENV_SETTINGS \
 	TEGRA_DEVICE_SETTINGS \
 	MEM_LAYOUT_ENV_SETTINGS \
-	"fdt_high=" FDT_HIGH "\0" \
 	"initrd_high=" INITRD_HIGH "\0" \
 	"boot_targets=" BOOT_TARGETS "\0" \
 	BOARD_EXTRA_ENV_SETTINGS
-- 
2.43.0



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