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e66ac3f26a
Add PHYSICAL_START kernel configuration parameter to set the address at which the kernel should be loaded. It has been observed on an sh7757lcr that simply modifying MEMORY_START does not achieve this goal for 32bit sh. This is due to MEMORY_OFFSET in arch/sh/kernel/vmlinux.lds.S bot being based on MEMORY_START on such systems. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
120 lines
3.4 KiB
Makefile
120 lines
3.4 KiB
Makefile
#
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# arch/sh/boot/Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1999 Stuart Menefy
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#
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MKIMAGE := $(srctree)/scripts/mkuboot.sh
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#
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# Assign safe dummy values if these variables are not defined,
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# in order to suppress error message.
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#
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CONFIG_PAGE_OFFSET ?= 0x80000000
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CONFIG_MEMORY_START ?= 0x0c000000
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CONFIG_BOOT_LINK_OFFSET ?= 0x00800000
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CONFIG_ZERO_PAGE_OFFSET ?= 0x00001000
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CONFIG_ENTRY_OFFSET ?= 0x00001000
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CONFIG_PHYSICAL_START ?= $(CONFIG_MEMORY_START)
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suffix-y := bin
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suffix-$(CONFIG_KERNEL_GZIP) := gz
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suffix-$(CONFIG_KERNEL_BZIP2) := bz2
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suffix-$(CONFIG_KERNEL_LZMA) := lzma
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suffix-$(CONFIG_KERNEL_XZ) := xz
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suffix-$(CONFIG_KERNEL_LZO) := lzo
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targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
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uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin
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extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
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vmlinux.bin.xz vmlinux.bin.lzo
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subdir- := compressed romimage
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$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
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$(call if_changed,objcopy)
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@echo ' Kernel: $@ is ready'
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$(obj)/compressed/vmlinux: FORCE
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$(Q)$(MAKE) $(build)=$(obj)/compressed $@
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$(obj)/romImage: $(obj)/romimage/vmlinux FORCE
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$(call if_changed,objcopy)
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@echo ' Kernel: $@ is ready'
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$(obj)/romimage/vmlinux: $(obj)/zImage FORCE
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$(Q)$(MAKE) $(build)=$(obj)/romimage $@
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KERNEL_MEMORY := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_PHYSICAL_START) & 0x1fffffff]')
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KERNEL_LOAD := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_PAGE_OFFSET) + \
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$(KERNEL_MEMORY) + \
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$(CONFIG_ZERO_PAGE_OFFSET)]')
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KERNEL_ENTRY := $(shell /bin/bash -c 'printf "0x%08x" \
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$$[$(CONFIG_PAGE_OFFSET) + \
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$(KERNEL_MEMORY) + \
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$(CONFIG_ZERO_PAGE_OFFSET) + $(CONFIG_ENTRY_OFFSET)]')
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quiet_cmd_uimage = UIMAGE $@
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cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A sh -O linux -T kernel \
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-C $(2) -a $(KERNEL_LOAD) -e $(KERNEL_ENTRY) \
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-n 'Linux-$(KERNELRELEASE)' -d $< $@
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
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$(call if_changed,bzip2)
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$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzma)
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$(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,xzkern)
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$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
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$(call if_changed,lzo)
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$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2
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$(call if_changed,uimage,bzip2)
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$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz
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$(call if_changed,uimage,gzip)
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$(obj)/uImage.lzma: $(obj)/vmlinux.bin.lzma
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$(call if_changed,uimage,lzma)
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$(obj)/uImage.xz: $(obj)/vmlinux.bin.xz
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$(call if_changed,uimage,xz)
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$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo
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$(call if_changed,uimage,lzo)
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$(obj)/uImage.bin: $(obj)/vmlinux.bin
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$(call if_changed,uimage,none)
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OBJCOPYFLAGS_vmlinux.srec := -I binary -O srec
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$(obj)/vmlinux.srec: $(obj)/compressed/vmlinux
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$(call if_changed,objcopy)
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OBJCOPYFLAGS_uImage.srec := -I binary -O srec
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$(obj)/uImage.srec: $(obj)/uImage
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$(call if_changed,objcopy)
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$(obj)/uImage: $(obj)/uImage.$(suffix-y)
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@ln -sf $(notdir $<) $@
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@echo ' Image $@ is ready'
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export CONFIG_PAGE_OFFSET CONFIG_MEMORY_START CONFIG_BOOT_LINK_OFFSET \
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CONFIG_PHYSICAL_START CONFIG_ZERO_PAGE_OFFSET CONFIG_ENTRY_OFFSET \
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KERNEL_MEMORY suffix-y
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