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Diffstat (limited to 'kernel/arch/mips/include/asm/mach-loongson64/mem.h')
-rw-r--r--kernel/arch/mips/include/asm/mach-loongson64/mem.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/mach-loongson64/mem.h b/kernel/arch/mips/include/asm/mach-loongson64/mem.h
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+++ b/kernel/arch/mips/include/asm/mach-loongson64/mem.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2009 Lemote, Inc.
+ * Author: Wu Zhangjin <wuzhangjin@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_MACH_LOONGSON64_MEM_H
+#define __ASM_MACH_LOONGSON64_MEM_H
+
+/*
+ * high memory space
+ *
+ * in loongson2e, starts from 512M
+ * in loongson2f, starts from 2G 256M
+ */
+#ifdef CONFIG_CPU_LOONGSON2E
+#define LOONGSON_HIGHMEM_START 0x20000000
+#else
+#define LOONGSON_HIGHMEM_START 0x90000000
+#endif
+
+/*
+ * the peripheral registers(MMIO):
+ *
+ * On the Lemote Loongson 2e system, reside between 0x1000:0000 and 0x2000:0000.
+ * On the Lemote Loongson 2f system, reside between 0x1000:0000 and 0x8000:0000.
+ */
+
+#define LOONGSON_MMIO_MEM_START 0x10000000
+
+#ifdef CONFIG_CPU_LOONGSON2E
+#define LOONGSON_MMIO_MEM_END 0x20000000
+#else
+#define LOONGSON_MMIO_MEM_END 0x80000000
+#endif
+
+#endif /* __ASM_MACH_LOONGSON64_MEM_H */