@@ -158,7 +158,8 @@ drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
# Default to zImage, override when needed
all: zImage
-BOOT_TARGETS = zImage zImage.initrd uImage zImage% dtbImage% treeImage.% cuImage.% simpleImage.%
+BOOT_TARGETS = zImage zImage.initrd uImage uImage.fit.% zImage% dtbImage% \
+ treeImage.% cuImage.% simpleImage.%
PHONY += $(BOOT_TARGETS)
@@ -185,6 +186,7 @@ define archhelp
@echo '* zImage - Build default images selected by kernel config'
@echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
@echo ' uImage - U-Boot native image format'
+ @echo ' uImage.fit.<dt> - U-Boot Flattened Image Tree image format'
@echo ' cuImage.<dt> - Backwards compatible U-Boot image for older'
@echo ' versions which do not support device trees'
@echo ' dtbImage.<dt> - zImage with an embedded device tree blob'
@@ -19,6 +19,7 @@ kernel-vmlinux.strip.c
kernel-vmlinux.strip.gz
mktree
uImage
+uImage.fit.*
cuImage.*
dtbImage.*
treeImage.*
@@ -310,6 +310,9 @@ $(obj)/zImage.iseries: vmlinux
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
+$(obj)/uImage.fit.%: vmlinux $(obj)/%.dtb $(wrapperbits)
+ $(call if_changed,wrap,uboot.fit,,$(obj)/$*.dtb)
+
$(obj)/cuImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
@@ -349,7 +352,7 @@ install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
# anything not in $(targets)
clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
- zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
+ uImage.* zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
zImage.iseries zImage.miboot zImage.pmac zImage.pseries \
simpleImage.* otheros.bld *.dtb
@@ -46,6 +46,9 @@ CROSS=
# mkimage wrapper script
MKIMAGE=$srctree/scripts/mkuboot.sh
+# script to generate an .its file for uImage.fit.* images
+MKITS=$srctree/scripts/mkits.sh
+
# directory for object and other files used by this script
object=arch/powerpc/boot
objbin=$object
@@ -157,7 +160,7 @@ coff)
lds=$object/zImage.coff.lds
link_address='0x500000'
;;
-miboot|uboot)
+miboot|uboot|uboot.fit)
# miboot and U-boot want just the bare bits, not an ELF binary
ext=bin
objflags="-O binary"
@@ -277,6 +280,21 @@ uboot)
fi
exit 0
;;
+uboot.fit)
+ rm -f "$ofile"
+ ${MKITS} -A ppc -C gzip -a $membase -e $membase -v $version \
+ -d "$srctree/$dtb" -k "$srctree/$vmz" -o "$object/uImage.its"
+
+ # mkimage calls dtc for FIT images so use kernel dtc if necessary
+ export PATH=$PATH:$srctree/scripts/dtc
+
+ ${MKIMAGE} -f "$object/uImage.its" "$ofile"
+ rm "$object/uImage.its"
+ if [ -z "$cacheit" ]; then
+ rm -f "$vmz"
+ fi
+ exit 0
+ ;;
esac
addsec() {
new file mode 100755
@@ -0,0 +1,111 @@
+#!/bin/bash
+#
+# Licensed under the terms of the GNU GPL License version 2 or later.
+#
+# Author: Peter Tyser <ptyser@xes-inc.com>
+#
+# U-Boot firmware supports the booting of images in the Flattened Image
+# Tree (FIT) format. The FIT format uses a device tree structure to
+# describe a kernel image, device tree blob, ramdisk, etc. This script
+# creates an Image Tree Source (.its file) which can be passed to the
+# 'mkimage' utility to generate an Image Tree Blob (.itb file). The .itb
+# file can then be booted by U-Boot (or other bootloaders which support
+# FIT images). See doc/uImage.FIT/howto.txt in U-Boot source code for
+# additional information on FIT images.
+#
+
+usage() {
+ echo "Usage: `basename $0` -A arch -C comp -a addr -e entry" \
+ "-v version -k kernel [-d dtb] -o its_file"
+ echo -e "\t-A ==> set architecture to 'arch'"
+ echo -e "\t-C ==> set compression type 'comp'"
+ echo -e "\t-a ==> set load address to 'addr' (hex)"
+ echo -e "\t-e ==> set entry point to 'entry' (hex)"
+ echo -e "\t-v ==> set kernel version to 'version'"
+ echo -e "\t-k ==> include kernel image 'kernel'"
+ echo -e "\t-d ==> include Device Tree Blob 'dtb'"
+ echo -e "\t-o ==> create output file 'its_file'"
+ exit 1
+}
+
+while getopts ":A:C:a:d:e:k:o:v:" OPTION
+do
+ case $OPTION in
+ A ) ARCH=$OPTARG;;
+ C ) COMPRESS=$OPTARG;;
+ a ) LOAD_ADDR=$OPTARG;;
+ d ) DTB=$OPTARG;;
+ e ) ENTRY_ADDR=$OPTARG;;
+ k ) KERNEL=$OPTARG;;
+ o ) OUTPUT=$OPTARG;;
+ v ) VERSION=$OPTARG;;
+ * ) echo "Invalid option passed to '$0' (options:$@)"
+ usage;;
+ esac
+done
+
+# Make sure user entered all required parameters
+if [ -z "${ARCH}" ] || [ -z "${COMPRESS}" ] || [ -z "${LOAD_ADDR}" ] || \
+ [ -z "${ENTRY_ADDR}" ] || [ -z "${VERSION}" ] || [ -z "${KERNEL}" ] || \
+ [ -z "${OUTPUT}" ]; then
+ usage
+fi
+
+# Create a default, fully populated DTS file
+DATA="/dts-v1/;
+
+/ {
+ description = \"Linux kernel ${VERSION}\";
+ #address-cells = <1>;
+
+ images {
+ kernel@1 {
+ description = \"Linux Kernel ${VERSION}\";
+ data = /incbin/(\"${KERNEL}\");
+ type = \"kernel\";
+ arch = \"${ARCH}\";
+ os = \"linux\";
+ compression = \"${COMPRESS}\";
+ load = <${LOAD_ADDR}>;
+ entry = <${ENTRY_ADDR}>;
+ hash@1 {
+ algo = \"crc32\";
+ };
+ hash@2 {
+ algo = \"sha1\";
+ };
+ };
+
+ fdt@1 { /* start fdt */
+ description = \"Flattened Device Tree blob\";
+ data = /incbin/(\"${DTB}\");
+ type = \"flat_dt\";
+ arch = \"${ARCH}\";
+ compression = \"none\";
+ hash@1 {
+ algo = \"crc32\";
+ };
+ hash@2 {
+ algo = \"sha1\";
+ };
+ }; /* end fdt */
+
+ configurations {
+ default = \"config@1\";
+ config@1 {
+ description = \"Default Linux kernel\";
+ kernel = \"kernel@1\";
+ fdt = \"fdt@1\";
+ ramdisk = \"ramdisk@1\";
+ };
+ };
+};"
+
+# Conditionally strip fdt information out of tree
+if [ -z "${DTB}" ]; then
+ DATA=`echo "$DATA" | sed '/start fdt/,/end fdt/d'`
+ DATA=`echo "$DATA" | sed '/fdt/d'`
+fi
+
+# Write .its file to disk
+echo "$DATA" > ${OUTPUT}