MIPS: boot: Provide more uImage options
Allow more compression algorithms as well as uncompressed uImage.bin
to be generated. An uncompressed image might be useful to rule out
problems in the decompression code in the bootloader or even speed
up the boot process at the expense of a bigger uImage file.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9271/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index b3de8ec..8f57fc7 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -298,7 +298,11 @@
boot-y += vmlinux.srec
ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
boot-y += uImage
+boot-y += uImage.bin
+boot-y += uImage.bz2
boot-y += uImage.gz
+boot-y += uImage.lzma
+boot-y += uImage.lzo
endif
# compressed boot image targets (arch/mips/boot/compressed/)
@@ -397,7 +401,11 @@
echo ' vmlinuz.bin - Raw binary zboot image'
echo ' vmlinuz.srec - SREC zboot image'
echo ' uImage - U-Boot image'
+ echo ' uImage.bin - U-Boot image (uncompressed)'
+ echo ' uImage.bz2 - U-Boot image (bz2)'
echo ' uImage.gz - U-Boot image (gzip)'
+ echo ' uImage.lzma - U-Boot image (lzma)'
+ echo ' uImage.lzo - U-Boot image (lzo)'
echo ' dtbs - Device-tree blobs for enabled boards'
echo
echo ' These will be default as appropriate for a configured platform.'
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 1466c00..acb1988 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -23,6 +23,12 @@
hostprogs-y := elf2ecoff
+suffix-y := bin
+suffix-$(CONFIG_KERNEL_BZIP2) := bz2
+suffix-$(CONFIG_KERNEL_GZIP) := gz
+suffix-$(CONFIG_KERNEL_LZMA) := lzma
+suffix-$(CONFIG_KERNEL_LZO) := lzo
+
targets := vmlinux.ecoff
quiet_cmd_ecoff = ECOFF $@
cmd_ecoff = $(obj)/elf2ecoff $(VMLINUX) $@ $(e2eflag)
@@ -44,14 +50,53 @@
UIMAGE_LOADADDR = $(VMLINUX_LOAD_ADDRESS)
UIMAGE_ENTRYADDR = $(VMLINUX_ENTRY_ADDRESS)
+#
+# Compressed vmlinux images
+#
+
+extra-y += vmlinux.bin.bz2
+extra-y += vmlinux.bin.gz
+extra-y += vmlinux.bin.lzma
+extra-y += vmlinux.bin.lzo
+
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,bzip2)
+
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,lzma)
+
+$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,lzo)
+
+#
+# Compressed u-boot images
+#
+
+targets += uImage
+targets += uImage.bin
+targets += uImage.bz2
targets += uImage.gz
+targets += uImage.lzma
+targets += uImage.lzo
+
+$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,uimage,none)
+
+$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2 FORCE
+ $(call if_changed,uimage,bzip2)
+
$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
$(call if_changed,uimage,gzip)
-targets += uImage
-$(obj)/uImage: $(obj)/uImage.gz FORCE
+$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma FORCE
+ $(call if_changed,uimage,lzma)
+
+$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo FORCE
+ $(call if_changed,uimage,lzo)
+
+$(obj)/uImage: $(obj)/uImage.$(suffix-y)
@ln -sf $(notdir $<) $@
@echo ' Image $@ is ready'