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MIPS: boot: Provide more uImage options

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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>
This commit is contained in:
Markos Chandras
2015-02-16 15:13:11 +00:00
committed by Ralf Baechle
parent 151f9148d1
commit 9d6b80faf9
2 changed files with 55 additions and 2 deletions
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49
arch/mips/boot/Makefile
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@@ -23,6 +23,12 @@ strip-flags := $(addprefix --remove-section=,$(drop-sections))
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 @@ $(obj)/vmlinux.srec: $(VMLINUX) FORCE
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'