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authorIru Cai <mytbk920423@gmail.com>2019-10-30 14:21:52 +0800
committerIru Cai <mytbk920423@gmail.com>2019-10-30 14:48:38 +0800
commitae51f41d14f548d494ac41e0d21137c5a4c3f59c (patch)
tree6ddb9d1aaa7bd5bad5bbf8497edc2e08ff208d79 /arch/xtensa/include/asm/addrspace.h
downloaduext4-ae51f41d14f548d494ac41e0d21137c5a4c3f59c.tar.xz
import the U-Boot code and make it compile
Diffstat (limited to 'arch/xtensa/include/asm/addrspace.h')
-rw-r--r--arch/xtensa/include/asm/addrspace.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/addrspace.h b/arch/xtensa/include/asm/addrspace.h
new file mode 100644
index 0000000..3b27f93
--- /dev/null
+++ b/arch/xtensa/include/asm/addrspace.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2008-2013 Tensilica Inc.
+ * Copyright (C) 2016 Cadence Design Systems Inc.
+ */
+
+#ifndef _XTENSA_ADDRSPACE_H
+#define _XTENSA_ADDRSPACE_H
+
+#include <asm/arch/core.h>
+
+/*
+ * MMU Memory Map
+ *
+ * noMMU and v3 MMU have identity mapped address space on reset.
+ * V2 MMU:
+ * IO (uncached) f0000000..ffffffff -> f000000
+ * IO (cached) e0000000..efffffff -> f000000
+ * MEM (uncached) d8000000..dfffffff -> 0000000
+ * MEM (cached) d0000000..d7ffffff -> 0000000
+ *
+ * The actual location of memory and IO is the board property.
+ */
+
+#define IOADDR(x) (CONFIG_SYS_IO_BASE + (x))
+#define MEMADDR(x) (CONFIG_SYS_MEMORY_BASE + (x))
+#define PHYSADDR(x) ((x) - XCHAL_VECBASE_RESET_VADDR + \
+ XCHAL_VECBASE_RESET_PADDR)
+
+#endif /* _XTENSA_ADDRSPACE_H */