diff options
Diffstat (limited to 'arch/xtensa/include/asm/addrspace.h')
| -rw-r--r-- | arch/xtensa/include/asm/addrspace.h | 30 |
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 */ |