arm64: zynqmp: Add support for u-boot.itb generation without ATF
If ATF doesn't exist generate u-boot.itb without it and let U-Boot run in
EL3. Still keep warning to let user know that ATF/BL31 is missing.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/mach-zynqmp/mkimage_fit_atf.sh b/arch/arm/mach-zynqmp/mkimage_fit_atf.sh
index 1e770ba..92e3184 100755
--- a/arch/arm/mach-zynqmp/mkimage_fit_atf.sh
+++ b/arch/arm/mach-zynqmp/mkimage_fit_atf.sh
@@ -29,11 +29,8 @@
fi
if [ ! -f $BL31 ]; then
- echo "WARNING: BL31 file $BL31 NOT found, resulting binary is non-functional" >&2
+ echo "WARNING: BL31 file $BL31 NOT found, U-Boot will run in EL3" >&2
BL31=/dev/null
- # But U-Boot proper could be loaded in EL3 by specifying
- # firmware = "uboot";
- # instead of "atf" in config node
fi
cat << __HEADER_EOF
@@ -58,6 +55,10 @@
algo = "md5";
};
};
+__HEADER_EOF
+
+if [ -f $BL31 ]; then
+cat << __ATF
atf {
description = "ARM Trusted Firmware";
data = /incbin/("$BL31");
@@ -71,7 +72,8 @@
algo = "md5";
};
};
-__HEADER_EOF
+__ATF
+fi
DEFAULT=1
cnt=1
@@ -106,6 +108,15 @@
cnt=1
for dtname in $DT
do
+if [ ! -f $BL31 ]; then
+cat << __CONF_SECTION1_EOF
+ config_$cnt {
+ description = "$(basename $dtname .dtb)";
+ firmware = "uboot";
+ fdt = "fdt_$cnt";
+ };
+__CONF_SECTION1_EOF
+else
cat << __CONF_SECTION1_EOF
config_$cnt {
description = "$(basename $dtname .dtb)";
@@ -114,6 +125,8 @@
fdt = "fdt_$cnt";
};
__CONF_SECTION1_EOF
+fi
+
cnt=$((cnt+1))
done