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| author | Jonas Gorski <jogo@openwrt.org> | 2014-08-11 11:36:55 +0000 |
|---|---|---|
| committer | Jonas Gorski <jogo@openwrt.org> | 2014-08-11 11:36:55 +0000 |
| commit | aa572fccb55a392323c8f708233ba1bb2f2181e3 (patch) | |
| tree | 8c2f558e53dcc0a5c7f5e2a13883273174e4653e /target/linux/brcm63xx | |
| parent | 0343c0288e72580a27696f13758b53f1c75c89bd (diff) | |
| download | mtk-20170518-aa572fccb55a392323c8f708233ba1bb2f2181e3.zip mtk-20170518-aa572fccb55a392323c8f708233ba1bb2f2181e3.tar.gz mtk-20170518-aa572fccb55a392323c8f708233ba1bb2f2181e3.tar.bz2 | |
brcm63xx: add support for attaching dtbs to lzma kernels
In preparation for switching to dtb based board identification, add
support for building lzma-loader and lzma cfe kernels with dtb
appended.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 42121
Diffstat (limited to 'target/linux/brcm63xx')
| -rwxr-xr-x | target/linux/brcm63xx/image/Makefile | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/target/linux/brcm63xx/image/Makefile b/target/linux/brcm63xx/image/Makefile index 807eebf..705515c 100755 --- a/target/linux/brcm63xx/image/Makefile +++ b/target/linux/brcm63xx/image/Makefile @@ -31,6 +31,8 @@ define Image/LimitName16 $(shell expr substr "$(1)" 1 16) endef +TARGET_DTBS:= + define Image/Build/CFE # Generate the tagged image $(STAGING_DIR_HOST)/bin/imagetag -i $(KDIR)/vmlinux.lzma.cfe -f $(KDIR)/root.$(1) \ @@ -161,21 +163,40 @@ define Image/PrepareLoader rm -f $(KDIR)/vmlinux$(1).lzma endef -define Image/Prepare +define Image/PrepareLoaderDTB + # append dtb to vmlinux, then build a standard LZMA loader + cat $(KDIR)/vmlinux$(1) $(DTS_DIR)/$(2).dtb > $(KDIR)/vmlinux$(1)-$(2) + $(call Image/PrepareLoader,$(1)-$(2)) +endef +define Image/PrepareCFELzmaKernel # CFE is a LZMA nazi! It took me hours to find out the parameters! # Also I think lzma has a bug cause it generates different output depending on # if you use stdin / stdout or not. Use files instead of stdio here, cause # otherwise CFE will complain and not boot the image. - $(STAGING_DIR_HOST)/bin/lzma e -d22 -fb64 -a1 $(KDIR)/vmlinux $(KDIR)/vmlinux.lzma.tmp + $(STAGING_DIR_HOST)/bin/lzma e -d22 -fb64 -a1 $(KDIR)/vmlinux$(1) $(KDIR)/vmlinux$(1).lzma.tmp # Strip out the length, CFE doesn't like this - dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe bs=5 count=1 - dd if=$(KDIR)/vmlinux.lzma.tmp of=$(KDIR)/vmlinux.lzma.cfe ibs=13 obs=5 skip=1 seek=1 conv=notrunc - rm -f $(KDIR)/vmlinux.lzma.tmp + dd if=$(KDIR)/vmlinux$(1).lzma.tmp of=$(KDIR)/vmlinux$(1).lzma.cfe bs=5 count=1 + dd if=$(KDIR)/vmlinux$(1).lzma.tmp of=$(KDIR)/vmlinux$(1).lzma.cfe ibs=13 obs=5 skip=1 seek=1 conv=notrunc + rm -f $(KDIR)/vmlinux$(1).lzma.tmp +endef + +define Image/PrepareCFELzmaKernelDTB + # compile the dts (the dtb will be later reused for the lzma loader) + $(LINUX_DIR)/scripts/dtc/dtc -O dtb -o $(DTS_DIR)/$(1).dtb ../dts/$(1).dts + cat $(KDIR)/vmlinux $(DTS_DIR)/$(1).dtb > $(KDIR)/vmlinux-$(1) + $(call Image/PrepareCFELzmaKernel,-$(1)) +endef + +define Image/Prepare + $(call Image/PrepareCFELzmaKernel,) + + $(foreach board,$(sort $(TARGET_DTBS)), $(call Image/PrepareCFELzmaKernelDTB,$(board))) ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y) $(call Image/PrepareLoader,-initramfs) + $(foreach board,$(sort $(TARGET_DTBS)), $(call Image/PrepareLoaderDTB,-initramfs,$(board))) endif rm -f $(KDIR)/fs_mark touch $(KDIR)/fs_mark |