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-rw-r--r--README.md5
-rwxr-xr-xscripts/uboot-script-gen11
2 files changed, 16 insertions, 0 deletions
diff --git a/README.md b/README.md
index cb15ca5..3566a6d 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@ BOOT_AUX_FILE[1]="uboot.cfg"
UBOOT_SOURCE="boot.source"
UBOOT_SCRIPT="boot.scr"
+APPEND_EXTRA_CMDS="extra.txt"
FDTEDIT="imagebuilder.dtb"
FIT="boot.fit"
FIT_ENC_KEY_DIR="dir/key"
@@ -197,6 +198,10 @@ Where:
as you can pass -o FILENAME to uboot-script-gen as a command line
parameter
+- APPEND_EXTRA_CMDS: is optional and specifies the path to a text file
+ containing extra u-boot commands to be added to the boot script before
+ the boot command. Useful for running custom fixup commands.
+
- FDTEDIT is an optional and is off by default. Specifies the output
modified dtb, used for reference and fdt_std.
diff --git a/scripts/uboot-script-gen b/scripts/uboot-script-gen
index 19d7919..a4ddd1e 100755
--- a/scripts/uboot-script-gen
+++ b/scripts/uboot-script-gen
@@ -342,6 +342,9 @@ function check_file_type()
elif [ "$type" = "Device Tree Blob" ]
then
type="Device Tree Blob\|data"
+ elif [ "$type" = "text" ]
+ then
+ type="ASCII text"
fi
file -L $filename | grep "$type" &> /dev/null
@@ -1156,6 +1159,14 @@ device_tree_editing $device_tree_addr
# disable device tree reloation
echo "setenv fdt_high 0xffffffffffffffff" >> $UBOOT_SOURCE
+
+# append extra u-boot commands (fixups) to script before boot command
+if test "$APPEND_EXTRA_CMDS"
+then
+ check_file_type "$APPEND_EXTRA_CMDS" "text"
+ cat $APPEND_EXTRA_CMDS >> $UBOOT_SOURCE
+fi
+
echo "$BOOT_CMD $kernel_addr - $device_tree_addr" >> $UBOOT_SOURCE
if test "$FIT"