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boot.h

/*
 * 1. load vmlinuz
 *
 * CONFIG_MEMORY_START        +-----------------------+
 *                      |        vmlinuz  |
 *                      +-----------------------+
 * 2. decompressed
 *
 * CONFIG_MEMORY_START        +-----------------------+
 *                      |        vmlinuz  |
 *                      +-----------------------+
 *                      |                 |
 * BOOT_RELOC_ADDR            +-----------------------+
 *                      |                 |
 * KERNEL_DECOMPRESS_ADDR     +-----------------------+
 *                      |     vmlinux           |
 *                      +-----------------------+
 *
 * 3. relocate copy & jump code
 *
 * CONFIG_MEMORY_START        +-----------------------+
 *                      |        vmlinuz  |
 *                      +-----------------------+
 *                      |                 |
 * BOOT_RELOC_ADDR            +-----------------------+
 *                      |    boot(copy&jump)    |
 * KERNEL_DECOMPRESS_ADDR     +-----------------------+
 *                      |     vmlinux           |
 *                      +-----------------------+
 *
 * 4. relocate decompressed kernel
 *
 * CONFIG_MEMORY_START        +-----------------------+
 *                      |        vmlinux  |
 *                      +-----------------------+
 *                      |                 |
 * BOOT_RELOC_ADDR            +-----------------------+
 *                      |     boot(copy&jump)   |
 * KERNEL_DECOMPRESS_ADDR     +-----------------------+
 *                      |                 |
 *                      +-----------------------+
 *
 */
#ifdef __ASSEMBLY__
#define __val(x)  x
#else
#define __val(x)  (x)
#endif

#define DECOMPRESS_OFFSET_BASE      __val(0x00900000)
#define BOOT_RELOC_SIZE       __val(0x00001000)

#define KERNEL_EXEC_ADDR      __val(CONFIG_MEMORY_START)
#define KERNEL_DECOMPRESS_ADDR      __val(CONFIG_MEMORY_START + \
                              DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
#define KERNEL_ENTRY          __val(CONFIG_MEMORY_START + 0x1000)

#define BOOT_EXEC_ADDR        __val(CONFIG_MEMORY_START)
#define BOOT_RELOC_ADDR       __val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)

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