MIPS: Allow platforms to specify the decompressor load address
Platforms which use raw zboot images may need to link the image at a fixed address if there is no other way to communicate the load address to the bootloader. Allow the per-platform Kbuild files to specify an optional zboot image load address (zload-y) and fall back to calc_vmlinuz_load_addr if unset. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/9566/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -12,6 +12,8 @@
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# Author: Wu Zhangjin <wuzhangjin@gmail.com>
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# Author: Wu Zhangjin <wuzhangjin@gmail.com>
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#
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#
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include $(srctree)/arch/mips/Kbuild.platforms
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# set the default size of the mallocing area for decompressing
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# set the default size of the mallocing area for decompressing
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BOOT_HEAP_SIZE := 0x400000
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BOOT_HEAP_SIZE := 0x400000
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@ -66,8 +68,8 @@ $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
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# Calculate the load address of the compressed kernel image
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# Calculate the load address of the compressed kernel image
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hostprogs-y := calc_vmlinuz_load_addr
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hostprogs-y := calc_vmlinuz_load_addr
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ifeq ($(CONFIG_MACH_JZ4740),y)
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ifneq ($(zload-y),)
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VMLINUZ_LOAD_ADDRESS := 0x80600000
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VMLINUZ_LOAD_ADDRESS := $(zload-y)
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else
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else
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VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
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VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
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$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
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$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
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@ -1,3 +1,4 @@
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platform-$(CONFIG_MACH_JZ4740) += jz4740/
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platform-$(CONFIG_MACH_JZ4740) += jz4740/
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cflags-$(CONFIG_MACH_JZ4740) += -I$(srctree)/arch/mips/include/asm/mach-jz4740
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cflags-$(CONFIG_MACH_JZ4740) += -I$(srctree)/arch/mips/include/asm/mach-jz4740
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load-$(CONFIG_MACH_JZ4740) += 0xffffffff80010000
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load-$(CONFIG_MACH_JZ4740) += 0xffffffff80010000
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zload-$(CONFIG_MACH_JZ4740) += 0xffffffff80600000
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