| Ben Dooks | 78ddb278 | 2009-07-30 23:23:34 +0100 | [diff] [blame] | 1 | /* linux/amba/pl093.h |
| 2 | * |
| 3 | * Copyright (c) 2008 Simtec Electronics |
| 4 | * http://armlinux.simtec.co.uk/ |
| 5 | * Ben Dooks <ben@simtec.co.uk> |
| 6 | * |
| 7 | * AMBA PL093 SSMC (synchronous static memory controller) |
| 8 | * See DDI0236.pdf (r0p4) for more details |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | */ |
| 14 | |
| 15 | #define SMB_BANK(x) ((x) * 0x20) /* each bank control set is 0x20 apart */ |
| 16 | |
| 17 | /* Offsets for SMBxxxxRy registers */ |
| 18 | |
| 19 | #define SMBIDCYR (0x00) |
| 20 | #define SMBWSTRDR (0x04) |
| 21 | #define SMBWSTWRR (0x08) |
| 22 | #define SMBWSTOENR (0x0C) |
| 23 | #define SMBWSTWENR (0x10) |
| 24 | #define SMBCR (0x14) |
| 25 | #define SMBSR (0x18) |
| 26 | #define SMBWSTBRDR (0x1C) |
| 27 | |
| 28 | /* Masks for SMB registers */ |
| 29 | #define IDCY_MASK (0xf) |
| 30 | #define WSTRD_MASK (0xf) |
| 31 | #define WSTWR_MASK (0xf) |
| 32 | #define WSTOEN_MASK (0xf) |
| 33 | #define WSTWEN_MASK (0xf) |
| 34 | |
| 35 | /* Notes from datasheet: |
| 36 | * WSTOEN <= WSTRD |
| 37 | * WSTWEN <= WSTWR |
| 38 | * |
| 39 | * WSTOEN is not used with nWAIT |
| 40 | */ |
| 41 | |
| 42 | /* SMBCR bit definitions */ |
| 43 | #define SMBCR_BIWRITEEN (1 << 21) |
| 44 | #define SMBCR_ADDRVALIDWRITEEN (1 << 20) |
| 45 | #define SMBCR_SYNCWRITE (1 << 17) |
| 46 | #define SMBCR_BMWRITE (1 << 16) |
| 47 | #define SMBCR_WRAPREAD (1 << 14) |
| 48 | #define SMBCR_BIREADEN (1 << 13) |
| 49 | #define SMBCR_ADDRVALIDREADEN (1 << 12) |
| 50 | #define SMBCR_SYNCREAD (1 << 9) |
| 51 | #define SMBCR_BMREAD (1 << 8) |
| 52 | #define SMBCR_SMBLSPOL (1 << 6) |
| 53 | #define SMBCR_WP (1 << 3) |
| 54 | #define SMBCR_WAITEN (1 << 2) |
| 55 | #define SMBCR_WAITPOL (1 << 1) |
| 56 | #define SMBCR_RBLE (1 << 0) |
| 57 | |
| 58 | #define SMBCR_BURSTLENWRITE_MASK (3 << 18) |
| 59 | #define SMBCR_BURSTLENWRITE_4 (0 << 18) |
| 60 | #define SMBCR_BURSTLENWRITE_8 (1 << 18) |
| 61 | #define SMBCR_BURSTLENWRITE_RESERVED (2 << 18) |
| 62 | #define SMBCR_BURSTLENWRITE_CONTINUOUS (3 << 18) |
| 63 | |
| 64 | #define SMBCR_BURSTLENREAD_MASK (3 << 10) |
| 65 | #define SMBCR_BURSTLENREAD_4 (0 << 10) |
| 66 | #define SMBCR_BURSTLENREAD_8 (1 << 10) |
| 67 | #define SMBCR_BURSTLENREAD_16 (2 << 10) |
| 68 | #define SMBCR_BURSTLENREAD_CONTINUOUS (3 << 10) |
| 69 | |
| 70 | #define SMBCR_MW_MASK (3 << 4) |
| 71 | #define SMBCR_MW_8BIT (0 << 4) |
| 72 | #define SMBCR_MW_16BIT (1 << 4) |
| 73 | #define SMBCR_MW_M32BIT (2 << 4) |
| 74 | |
| 75 | /* SSMC status registers */ |
| 76 | #define SSMCCSR (0x200) |
| 77 | #define SSMCCR (0x204) |
| 78 | #define SSMCITCR (0x208) |
| 79 | #define SSMCITIP (0x20C) |
| 80 | #define SSMCITIOP (0x210) |