60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
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/*
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* 1. load vmlinuz
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*
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* CONFIG_MEMORY_START +-----------------------+
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* | vmlinuz |
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* +-----------------------+
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* 2. decompressed
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*
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* CONFIG_MEMORY_START +-----------------------+
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* | vmlinuz |
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* +-----------------------+
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* | |
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* BOOT_RELOC_ADDR +-----------------------+
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* | |
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* KERNEL_DECOMPRESS_ADDR +-----------------------+
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* | vmlinux |
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* +-----------------------+
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*
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* 3. relocate copy & jump code
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*
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* CONFIG_MEMORY_START +-----------------------+
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* | vmlinuz |
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* +-----------------------+
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* | |
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* BOOT_RELOC_ADDR +-----------------------+
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* | boot(copy&jump) |
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* KERNEL_DECOMPRESS_ADDR +-----------------------+
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* | vmlinux |
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* +-----------------------+
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*
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* 4. relocate decompressed kernel
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*
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* CONFIG_MEMORY_START +-----------------------+
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* | vmlinux |
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* +-----------------------+
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* | |
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* BOOT_RELOC_ADDR +-----------------------+
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* | boot(copy&jump) |
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* KERNEL_DECOMPRESS_ADDR +-----------------------+
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* | |
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* +-----------------------+
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*
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*/
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#ifdef __ASSEMBLY__
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#define __val(x) x
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#else
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#define __val(x) (x)
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#endif
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#define DECOMPRESS_OFFSET_BASE __val(0x00900000)
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#define BOOT_RELOC_SIZE __val(0x00001000)
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#define KERNEL_EXEC_ADDR __val(CONFIG_MEMORY_START)
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#define KERNEL_DECOMPRESS_ADDR __val(CONFIG_MEMORY_START + \
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DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
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#define KERNEL_ENTRY __val(CONFIG_MEMORY_START + 0x1000)
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#define BOOT_EXEC_ADDR __val(CONFIG_MEMORY_START)
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#define BOOT_RELOC_ADDR __val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)
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