GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-18 13:11:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

AM335X: Set fdt_high for AM335X devices to enable booting with Device Tree

Browse source 
For AM335X boards, such as the EVM and Bone Linux kernel fails to
locate the device tree blob on boot. The reason being is that
u-boot is copying the DT blob to the upper part of RAM when booting
the kernel and the kernel is unable to access the blob.
By setting the fdt_high variable to 0xffffffff (to prevent the copy)
the kernel is able to locate the DT blob and boot.

This patch is tested on BeagleBone platform.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: Tom Rini <trini@ti.com>
This commit is contained in:
hvaibhav@ti.com 2012-09-18 09:26:05 +00:00 • committed by Tom Rini
parent 13526f7157
commit f170899f73
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
include/configs/am335x_evm.h
View file

@ -52,6 +52,7 @@
#define CONFIG_EXTRA_ENV_SETTINGS \
"loadaddr=0x80200000\0" \
"fdtaddr=0x80F80000\0" \
"fdt_high=0xffffffff\0" \
"rdaddr=0x81000000\0" \
"bootfile=/boot/uImage\0" \
"fdtfile=\0" \