u-boot/include/asm-mips/addrspace.h
wdenk f4863a7aec * Patch by liang a lei, 9 Jan 2004:
Fix Intel 28F128J3 ID in include/flash.h

* Patch by Masami Komiya, 09 Jan 2004:
  add support for TB0229 board (NEC VR4131 MIPS processor)

* Patch by Leon Kukovec, 12 Dec 2003:
  changed extern __inline__ into static __inline__ in
  include/linux/byteorder/swab.h
2004-02-07 01:27:10 +00:00

83 lines
2.3 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1996 by Ralf Baechle
* Copyright (C) 2000 by Maciej W. Rozycki
*
* Defitions for the address spaces of the MIPS CPUs.
*/
#ifndef __ASM_MIPS_ADDRSPACE_H
#define __ASM_MIPS_ADDRSPACE_H
/*
* Memory segments (32bit kernel mode addresses)
*/
#define KUSEG 0x00000000
#define KSEG0 0x80000000
#define KSEG1 0xa0000000
#define KSEG2 0xc0000000
#define KSEG3 0xe0000000
#define K0BASE KSEG0
/*
* Returns the kernel segment base of a given address
*/
#ifndef __ASSEMBLY__
#define KSEGX(a) (((unsigned long)(a)) & 0xe0000000)
#else
#define KSEGX(a) ((a) & 0xe0000000)
#endif
/*
* Returns the physical address of a KSEG0/KSEG1 address
*/
#ifndef __ASSEMBLY__
#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
#else
#define PHYSADDR(a) ((a) & 0x1fffffff)
#endif
/*
* Returns the uncached address of a sdram address
*/
#ifndef __ASSEMBLY__
#if defined(CONFIG_AU1X00) || defined(CONFIG_TB0229)
/* We use a 36 bit physical address map here and
cannot access physical memory directly from core */
#define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000)
#else /* !CONFIG_AU1X00 */
#define UNCACHED_SDRAM(a) PHYSADDR(a)
#endif /* CONFIG_AU1X00 */
#endif /* __ASSEMBLY__ */
/*
* Map an address to a certain kernel segment
*/
#ifndef __ASSEMBLY__
#define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0))
#define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1))
#define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2))
#define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3))
#else
#define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0)
#define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1)
#define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2)
#define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3)
#endif
/*
* Memory segments (64bit kernel mode addresses)
*/
#define XKUSEG 0x0000000000000000
#define XKSSEG 0x4000000000000000
#define XKPHYS 0x8000000000000000
#define XKSEG 0xc000000000000000
#define CKSEG0 0xffffffff80000000
#define CKSEG1 0xffffffffa0000000
#define CKSSEG 0xffffffffc0000000
#define CKSEG3 0xffffffffe0000000
#endif /* __ASM_MIPS_ADDRSPACE_H */