projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 6069ff26 WD |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1996 by Ralf Baechle | |
| 7 | * Copyright (C) 2000 by Maciej W. Rozycki | |
| 8 | * | |
| 9 | * Defitions for the address spaces of the MIPS CPUs. | |
| 10 | */ | |
| 11 | #ifndef __ASM_MIPS_ADDRSPACE_H | |
| 12 | #define __ASM_MIPS_ADDRSPACE_H | |
| 13 | ||
| 14 | /* | |
| 15 | * Memory segments (32bit kernel mode addresses) | |
| 16 | */ | |
| d4ca31c4 WD |
17 | #define KUSEG 0x00000000 |
| 18 | #define KSEG0 0x80000000 | |
| 19 | #define KSEG1 0xa0000000 | |
| 20 | #define KSEG2 0xc0000000 | |
| 21 | #define KSEG3 0xe0000000 | |
| 6069ff26 | 22 | |
| d4ca31c4 | 23 | #define K0BASE KSEG0 |
| 6069ff26 WD |
24 | |
| 25 | /* | |
| 26 | * Returns the kernel segment base of a given address | |
| 27 | */ | |
| 28 | #ifndef __ASSEMBLY__ | |
| d4ca31c4 | 29 | #define KSEGX(a) (((unsigned long)(a)) & 0xe0000000) |
| 6069ff26 | 30 | #else |
| d4ca31c4 | 31 | #define KSEGX(a) ((a) & 0xe0000000) |
| 6069ff26 WD |
32 | #endif |
| 33 | ||
| 34 | /* | |
| 35 | * Returns the physical address of a KSEG0/KSEG1 address | |
| 36 | */ | |
| 37 | #ifndef __ASSEMBLY__ | |
| 38 | #define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) | |
| 39 | #else | |
| 40 | #define PHYSADDR(a) ((a) & 0x1fffffff) | |
| 41 | #endif | |
| 42 | ||
| d4ca31c4 WD |
43 | /* |
| 44 | * Returns the uncached address of a sdram address | |
| a2663ea4 WD |
45 | */ |
| 46 | #ifndef __ASSEMBLY__ | |
| f4863a7a | 47 | #if defined(CONFIG_AU1X00) || defined(CONFIG_TB0229) |
| a2663ea4 WD |
48 | /* We use a 36 bit physical address map here and |
| 49 | cannot access physical memory directly from core */ | |
| 50 | #define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000) | |
| 51 | #else /* !CONFIG_AU1X00 */ | |
| de9a738f | 52 | #define UNCACHED_SDRAM(a) KSEG1ADDR(a) |
| a2663ea4 WD |
53 | #endif /* CONFIG_AU1X00 */ |
| 54 | #endif /* __ASSEMBLY__ */ | |
| 6069ff26 WD |
55 | /* |
| 56 | * Map an address to a certain kernel segment | |
| 57 | */ | |
| 58 | #ifndef __ASSEMBLY__ | |
| 59 | #define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0)) | |
| 60 | #define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1)) | |
| 61 | #define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2)) | |
| 62 | #define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3)) | |
| 63 | #else | |
| 64 | #define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0) | |
| 65 | #define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1) | |
| 66 | #define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2) | |
| 67 | #define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3) | |
| 68 | #endif | |
| 69 | ||
| 70 | /* | |
| 71 | * Memory segments (64bit kernel mode addresses) | |
| 72 | */ | |
| d4ca31c4 WD |
73 | #define XKUSEG 0x0000000000000000 |
| 74 | #define XKSSEG 0x4000000000000000 | |
| 75 | #define XKPHYS 0x8000000000000000 | |
| 76 | #define XKSEG 0xc000000000000000 | |
| 77 | #define CKSEG0 0xffffffff80000000 | |
| 78 | #define CKSEG1 0xffffffffa0000000 | |
| 79 | #define CKSSEG 0xffffffffc0000000 | |
| 80 | #define CKSEG3 0xffffffffe0000000 | |
| 6069ff26 WD |
81 | |
| 82 | #endif /* __ASM_MIPS_ADDRSPACE_H */ |