db-88f6820-gp.h: Load data blobs into lower memory

By default on this platform, u-boot loads data into high memory
in the range of 0x7Fxxxxxx, which generates a data abort when the
kernel tries to read it.  Config the u-boot environment to load
the device tree and initrd image into lower memory to make them
accessible to the kernel.

Signed-off-by: Kevin Smith <kevin.smith@elecsyscorp.com>
Acked-by: Stefan Roese <sr@denx.de>

diff --git a/include/configs/db-88f6820-gp.h b/include/configs/db-88f6820-gp.h
index c32e078..24dbf6b 100644 (file)
--- a/include/configs/db-88f6820-gp.h
+++ b/include/configs/db-88f6820-gp.h
@@ -62,6 +62,11 @@
 #define CONFIG_SYS_CONSOLE_INFO_QUIET  /* don't print console @ startup */
 #define CONFIG_SYS_ALT_MEMTEST
 
+/* Keep device tree and initrd in lower memory so the kernel can access them */
+#define CONFIG_EXTRA_ENV_SETTINGS      \
+       "fdt_high=0x10000000\0"         \
+       "initrd_high=0x10000000\0"
+
 /*
  * mv-common.h should be defined after CMD configs since it used them
  * to enable certain macros