FIT uImage support for the MPC8377-WLAN
SVN-Revision: 19094v19.07.3_mercusys_ac12_duma
Imre Kaloz
15 years ago
parent
b28f438a37
commit
3c0f3ae294
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#!/bin/bash
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#
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# Licensed under the terms of the GNU GPL License version 2 or later.
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#
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# Author: Peter Tyser <ptyser@xes-inc.com>
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#
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# U-Boot firmware supports the booting of images in the Flattened Image
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# Tree (FIT) format. The FIT format uses a device tree structure to
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# describe a kernel image, device tree blob, ramdisk, etc. This script
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# creates an Image Tree Source (.its file) which can be passed to the
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# 'mkimage' utility to generate an Image Tree Blob (.itb file). The .itb
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# file can then be booted by U-Boot (or other bootloaders which support
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# FIT images). See doc/uImage.FIT/howto.txt in U-Boot source code for
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# additional information on FIT images.
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#
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usage() {
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echo "Usage: `basename $0` -A arch -C comp -a addr -e entry" \
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"-v version -k kernel [-d dtb] -o its_file"
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echo -e "\t-A ==> set architecture to 'arch'"
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echo -e "\t-C ==> set compression type 'comp'"
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echo -e "\t-a ==> set load address to 'addr' (hex)"
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echo -e "\t-e ==> set entry point to 'entry' (hex)"
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echo -e "\t-v ==> set kernel version to 'version'"
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echo -e "\t-k ==> include kernel image 'kernel'"
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echo -e "\t-d ==> include Device Tree Blob 'dtb'"
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echo -e "\t-o ==> create output file 'its_file'"
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exit 1
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}
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while getopts ":A:C:a:d:e:k:o:v:" OPTION
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do
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case $OPTION in
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A ) ARCH=$OPTARG;;
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C ) COMPRESS=$OPTARG;;
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a ) LOAD_ADDR=$OPTARG;;
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d ) DTB=$OPTARG;;
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e ) ENTRY_ADDR=$OPTARG;;
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k ) KERNEL=$OPTARG;;
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o ) OUTPUT=$OPTARG;;
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v ) VERSION=$OPTARG;;
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* ) echo "Invalid option passed to '$0' (options:$@)"
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usage;;
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esac
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done
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# Make sure user entered all required parameters
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if [ -z "${ARCH}" ] || [ -z "${COMPRESS}" ] || [ -z "${LOAD_ADDR}" ] || \
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[ -z "${ENTRY_ADDR}" ] || [ -z "${VERSION}" ] || [ -z "${KERNEL}" ] || \
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[ -z "${OUTPUT}" ]; then
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usage
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fi
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# Create a default, fully populated DTS file
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DATA="/dts-v1/;
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/ {
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description = \"Linux kernel ${VERSION}\";
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#address-cells = <1>;
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images {
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kernel@1 {
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description = \"Linux Kernel ${VERSION}\";
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data = /incbin/(\"${KERNEL}\");
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type = \"kernel\";
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arch = \"${ARCH}\";
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os = \"linux\";
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compression = \"${COMPRESS}\";
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load = <${LOAD_ADDR}>;
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entry = <${ENTRY_ADDR}>;
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hash@1 {
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algo = \"crc32\";
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};
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hash@2 {
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algo = \"sha1\";
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};
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};
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fdt@1 { /* start fdt */
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description = \"Flattened Device Tree blob\";
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data = /incbin/(\"${DTB}\");
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type = \"flat_dt\";
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arch = \"${ARCH}\";
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compression = \"none\";
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hash@1 {
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algo = \"crc32\";
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};
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hash@2 {
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algo = \"sha1\";
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};
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}; /* end fdt */
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};
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configurations {
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default = \"config@1\";
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config@1 {
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description = \"Default Linux kernel\";
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kernel = \"kernel@1\";
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fdt = \"fdt@1\";
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};
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};
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};"
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# Conditionally strip fdt information out of tree
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if [ -z "${DTB}" ]; then
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DATA=`echo "$DATA" | sed '/start fdt/,/end fdt/d'`
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DATA=`echo "$DATA" | sed '/fdt/d'`
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fi
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# Write .its file to disk
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echo "$DATA" > ${OUTPUT}
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@ -0,0 +1,30 @@
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--- a/arch/powerpc/boot/wrapper
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+++ b/arch/powerpc/boot/wrapper
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@@ -43,6 +43,9 @@ gzip=.gz
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# cross-compilation prefix
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CROSS=
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+# mkimage wrapper script
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+MKIMAGE=$srctree/scripts/mkuboot.sh
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+
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# directory for object and other files used by this script
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object=arch/powerpc/boot
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objbin=$object
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@@ -262,7 +265,7 @@ membase=`${CROSS}objdump -p "$kernel" |
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case "$platform" in
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uboot)
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rm -f "$ofile"
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- mkimage -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
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+ ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
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$uboot_version -d "$vmz" "$ofile"
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if [ -z "$cacheit" ]; then
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rm -f "$vmz"
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@@ -322,7 +325,7 @@ coff)
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;;
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cuboot*)
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gzip -f -9 "$ofile"
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- mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
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+ ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
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$uboot_version -d "$ofile".gz "$ofile"
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;;
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treeboot*)
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@ -0,0 +1,94 @@
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--- a/arch/powerpc/Makefile
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+++ b/arch/powerpc/Makefile
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@@ -157,7 +157,8 @@ drivers-$(CONFIG_OPROFILE) += arch/power
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# Default to zImage, override when needed
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all: zImage
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-BOOT_TARGETS = zImage zImage.initrd uImage zImage% dtbImage% treeImage.% cuImage.% simpleImage.%
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+BOOT_TARGETS = zImage zImage.initrd uImage uImage.fit.% zImage% dtbImage% \
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+ treeImage.% cuImage.% simpleImage.%
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PHONY += $(BOOT_TARGETS)
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@@ -173,6 +174,7 @@ define archhelp
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@echo '* zImage - Build default images selected by kernel config'
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@echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
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@echo ' uImage - U-Boot native image format'
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+ @echo ' uImage.fit.<dt> - U-Boot Flattened Image Tree image format'
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@echo ' cuImage.<dt> - Backwards compatible U-Boot image for older'
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@echo ' versions which do not support device trees'
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@echo ' dtbImage.<dt> - zImage with an embedded device tree blob'
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--- a/arch/powerpc/boot/.gitignore
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+++ b/arch/powerpc/boot/.gitignore
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@@ -19,6 +19,7 @@ kernel-vmlinux.strip.c
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kernel-vmlinux.strip.gz
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mktree
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uImage
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+uImage.fit.*
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cuImage.*
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dtbImage.*
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treeImage.*
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--- a/arch/powerpc/boot/Makefile
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+++ b/arch/powerpc/boot/Makefile
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@@ -306,6 +306,9 @@ $(obj)/zImage.iseries: vmlinux
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$(obj)/uImage: vmlinux $(wrapperbits)
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$(call if_changed,wrap,uboot)
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+$(obj)/uImage.fit.%: vmlinux $(obj)/%.dtb $(wrapperbits)
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+ $(call if_changed,wrap,uboot.fit,,$(obj)/$*.dtb)
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+
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$(obj)/cuImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
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$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
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@@ -345,7 +348,7 @@ install: $(CONFIGURE) $(addprefix $(obj)
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# anything not in $(targets)
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clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
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- zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
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+ uImage.* zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
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zImage.iseries zImage.miboot zImage.pmac zImage.pseries \
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simpleImage.* otheros.bld *.dtb
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--- a/arch/powerpc/boot/wrapper
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+++ b/arch/powerpc/boot/wrapper
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@@ -46,6 +46,9 @@ CROSS=
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# mkimage wrapper script
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MKIMAGE=$srctree/scripts/mkuboot.sh
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+# script to generate an .its file for uImage.fit.* images
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+MKITS=$srctree/scripts/mkits.sh
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+
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# directory for object and other files used by this script
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object=arch/powerpc/boot
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objbin=$object
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@@ -156,7 +159,7 @@ coff)
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lds=$object/zImage.coff.lds
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link_address='0x500000'
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;;
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-miboot|uboot)
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+miboot|uboot|uboot.fit)
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# miboot and U-boot want just the bare bits, not an ELF binary
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ext=bin
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objflags="-O binary"
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@@ -272,6 +275,21 @@ uboot)
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fi
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exit 0
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;;
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+uboot.fit)
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+ rm -f "$ofile"
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+ ${MKITS} -A ppc -C gzip -a $membase -e $membase -v $version \
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+ -d "$srctree/$dtb" -k "$srctree/$vmz" -o "$object/uImage.its"
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+
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+ # mkimage calls dtc for FIT images so use kernel dtc if necessary
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+ export PATH=$PATH:$srctree/scripts/dtc
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+
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+ ${MKIMAGE} -f "$object/uImage.its" "$ofile"
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+ rm "$object/uImage.its"
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+ if [ -z "$cacheit" ]; then
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+ rm -f "$vmz"
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+ fi
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+ exit 0
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+ ;;
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esac
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addsec() {
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