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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/m32r/boot/compressed/boot.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/m32r/boot/compressed/boot.h')
-rw-r--r--arch/m32r/boot/compressed/boot.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/m32r/boot/compressed/boot.h b/arch/m32r/boot/compressed/boot.h
new file mode 100644
index 00000000..9272e38d
--- /dev/null
+++ b/arch/m32r/boot/compressed/boot.h
@@ -0,0 +1,59 @@
+/*
+ * 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)