mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
de9a738faa
PHYSADDR is for physical address, KSEG1ADDR is for uncached. Signed-off-by: Vlad Lungu <vlad@comsys.ro> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
83 lines
2.3 KiB
C
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) KSEG1ADDR(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 */
|