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authorGeorge McCollister <george.mccollister@gmail.com>2016-07-15 15:40:54 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2016-08-10 10:45:33 +0100
commit1a65d11d4b8f056fdf22c31a92d1e58dec6d89f6 (patch)
tree0ef9de5d050fd32f78f3d2b9806883dbe0073220
parentb406a89935f148779569fa3770776e009dd51f13 (diff)
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kernel-fitimage: Add x86 support
For x86, bzImage must be built instead of zImage. Include setup.bin (which is required to boot the kernel) in the fitimage and always use a load/boot address of 0x00090000. For details see: http://git.denx.de/?p=u-boot.git;a=blob;f=doc/uImage.FIT/x86-fit-boot.txt Signed-off-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
-rw-r--r--meta/classes/kernel-fitimage.bbclass112
1 files changed, 82 insertions, 30 deletions
diff --git a/meta/classes/kernel-fitimage.bbclass b/meta/classes/kernel-fitimage.bbclass
index f05d8a54b5..8580247f82 100644
--- a/meta/classes/kernel-fitimage.bbclass
+++ b/meta/classes/kernel-fitimage.bbclass
@@ -7,12 +7,17 @@ python __anonymous () {
depends = "%s u-boot-mkimage-native dtc-native" % depends
d.setVar("DEPENDS", depends)
+ if d.getVar("UBOOT_ARCH", True) == "x86":
+ replacementtype = "bzImage"
+ else:
+ replacementtype = "zImage"
+
# Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
# to kernel.bbclass . We have to override it, since we pack zImage
# (at least for now) into the fitImage .
typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE", True) or ""
if 'fitImage' in typeformake.split():
- d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', 'zImage'))
+ d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', replacementtype))
image = d.getVar('INITRAMFS_IMAGE', True)
if image:
@@ -138,6 +143,33 @@ EOF
}
#
+# Emit the fitImage ITS setup section
+#
+# $1 ... .its filename
+# $2 ... Image counter
+# $3 ... Path to setup image
+fitimage_emit_section_setup() {
+
+ setup_csum="sha1"
+
+ cat << EOF >> ${1}
+ setup@${2} {
+ description = "Linux setup.bin";
+ data = /incbin/("${3}");
+ type = "x86_setup";
+ arch = "${UBOOT_ARCH}";
+ os = "linux";
+ compression = "none";
+ load = <0x00090000>;
+ entry = <0x00090000>;
+ hash@1 {
+ algo = "${setup_csum}";
+ };
+ };
+EOF
+}
+
+#
# Emit the fitImage ITS ramdisk section
#
# $1 ... .its filename
@@ -171,6 +203,7 @@ EOF
# $2 ... Linux kernel ID
# $3 ... DTB image ID
# $4 ... ramdisk ID
+# $5 ... config ID
fitimage_emit_section_config() {
conf_csum="sha1"
@@ -179,24 +212,25 @@ fitimage_emit_section_config() {
fi
# Test if we have any DTBs at all
- if [ -z "${3}" -a -z "${4}" ] ; then
- conf_desc="Boot Linux kernel"
- fdt_line=""
- ramdisk_line=""
- elif [ -z "${4}" ]; then
- conf_desc="Boot Linux kernel with FDT blob"
- fdt_line="fdt = \"fdt@${3}\";"
- ramdisk_line=""
- elif [ -z "${3}" ]; then
- conf_desc="Boot Linux kernel with ramdisk"
- fdt_line=""
- ramdisk_line="ramdisk = \"ramdisk@${4}\";"
- else
- conf_desc="Boot Linux kernel with FDT blob, ramdisk"
+ conf_desc="Linux kernel"
+ kernel_line="kernel = \"kernel@${2}\";"
+ fdt_line=""
+ ramdisk_line=""
+
+ if [ -n "${3}" ]; then
+ conf_desc="${conf_desc}, FDT blob"
fdt_line="fdt = \"fdt@${3}\";"
+ fi
+
+ if [ -n "${4}" ]; then
+ conf_desc="${conf_desc}, ramdisk"
ramdisk_line="ramdisk = \"ramdisk@${4}\";"
fi
- kernel_line="kernel = \"kernel@${2}\";"
+
+ if [ -n "${5}" ]; then
+ conf_desc="${conf_desc}, setup"
+ setup_line="setup = \"setup@${5}\";"
+ fi
cat << EOF >> ${1}
default = "conf@1";
@@ -205,6 +239,7 @@ fitimage_emit_section_config() {
${kernel_line}
${fdt_line}
${ramdisk_line}
+ ${setup_line}
hash@1 {
algo = "${conf_csum}";
};
@@ -212,16 +247,22 @@ EOF
if [ ! -z "${conf_sign_keyname}" ] ; then
- if [ -z "${3}" -a -z "${4}" ] ; then
- sign_line="sign-images = \"kernel\";"
- elif [ -z "${4}" ]; then
- sign_line="sign-images = \"fdt\", \"kernel\";"
- elif [ -z "${3}" ]; then
- sign_line="sign-images = \"ramdisk\", \"kernel\";"
- else
- sign_line="sign-images = \"ramdisk\", \"fdt\", \"kernel\";"
+ sign_line="sign-images = \"kernel\""
+
+ if [ -n "${3}" ]; then
+ sign_line="${sign_line}, \"fdt\""
+ fi
+
+ if [ -n "${4}" ]; then
+ sign_line="${sign_line}, \"ramdisk\""
fi
+ if [ -n "${5}" ]; then
+ sign_line="${sign_line}, \"setup\""
+ fi
+
+ sign_line="${sign_line};"
+
cat << EOF >> ${1}
signature@1 {
algo = "${conf_csum},rsa2048";
@@ -246,6 +287,7 @@ fitimage_assemble() {
kernelcount=1
dtbcount=""
ramdiskcount=${3}
+ setupcount=""
rm -f ${1} arch/${ARCH}/boot/${2}
fitimage_emit_fit_header ${1}
@@ -279,7 +321,15 @@ fitimage_assemble() {
fi
#
- # Step 3: Prepare a ramdisk section.
+ # Step 3: Prepare a setup section. (For x86)
+ #
+ if test -e arch/${ARCH}/boot/setup.bin ; then
+ setupcount=1
+ fitimage_emit_section_setup ${1} "${setupcount}" arch/${ARCH}/boot/setup.bin
+ fi
+
+ #
+ # Step 4: Prepare a ramdisk section.
#
if [ "x${ramdiskcount}" = "x1" ] ; then
copy_initramfs
@@ -290,21 +340,23 @@ fitimage_assemble() {
# Force the first Kernel and DTB in the default config
kernelcount=1
- dtbcount=1
+ if test -n "${dtbcount}"; then
+ dtbcount=1
+ fi
#
- # Step 4: Prepare a configurations section
+ # Step 5: Prepare a configurations section
#
fitimage_emit_section_maint ${1} confstart
- fitimage_emit_section_config ${1} ${kernelcount} ${dtbcount} ${ramdiskcount}
+ fitimage_emit_section_config ${1} "${kernelcount}" "${dtbcount}" "${ramdiskcount}" "${setupcount}"
fitimage_emit_section_maint ${1} sectend
fitimage_emit_section_maint ${1} fitend
#
- # Step 5: Assemble the image
+ # Step 6: Assemble the image
#
uboot-mkimage \
${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
@@ -312,7 +364,7 @@ fitimage_assemble() {
arch/${ARCH}/boot/${2}
#
- # Step 6: Sign the image and add public key to U-Boot dtb
+ # Step 7: Sign the image and add public key to U-Boot dtb
#
if [ "x${UBOOT_SIGN_ENABLE}" = "x1" ] ; then
uboot-mkimage \