Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-omap/tc.h |
| 3 | * |
| 4 | * OMAP Traffic Controller |
| 5 | * |
| 6 | * Copyright (C) 2004 Nokia Corporation |
| 7 | * Author: Imre Deak <imre.deak@nokia.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your |
| 12 | * option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 21 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | */ |
| 23 | |
| 24 | #ifndef __ASM_ARCH_TC_H |
| 25 | #define __ASM_ARCH_TC_H |
| 26 | |
| 27 | #define TCMIF_BASE 0xfffecc00 |
| 28 | #define OMAP_TC_OCPT1_PRIOR (TCMIF_BASE + 0x00) |
| 29 | #define OMAP_TC_EMIFS_PRIOR (TCMIF_BASE + 0x04) |
| 30 | #define OMAP_TC_EMIFF_PRIOR (TCMIF_BASE + 0x08) |
| 31 | #define EMIFS_CONFIG (TCMIF_BASE + 0x0c) |
| 32 | #define EMIFS_CS0_CONFIG (TCMIF_BASE + 0x10) |
| 33 | #define EMIFS_CS1_CONFIG (TCMIF_BASE + 0x14) |
| 34 | #define EMIFS_CS2_CONFIG (TCMIF_BASE + 0x18) |
| 35 | #define EMIFS_CS3_CONFIG (TCMIF_BASE + 0x1c) |
| 36 | #define EMIFF_SDRAM_CONFIG (TCMIF_BASE + 0x20) |
| 37 | #define EMIFF_MRS (TCMIF_BASE + 0x24) |
| 38 | #define TC_TIMEOUT1 (TCMIF_BASE + 0x28) |
| 39 | #define TC_TIMEOUT2 (TCMIF_BASE + 0x2c) |
| 40 | #define TC_TIMEOUT3 (TCMIF_BASE + 0x30) |
| 41 | #define TC_ENDIANISM (TCMIF_BASE + 0x34) |
| 42 | #define EMIFF_SDRAM_CONFIG_2 (TCMIF_BASE + 0x3c) |
| 43 | #define EMIF_CFG_DYNAMIC_WS (TCMIF_BASE + 0x40) |
| 44 | #define EMIFS_ACS0 (TCMIF_BASE + 0x50) |
| 45 | #define EMIFS_ACS1 (TCMIF_BASE + 0x54) |
| 46 | #define EMIFS_ACS2 (TCMIF_BASE + 0x58) |
| 47 | #define EMIFS_ACS3 (TCMIF_BASE + 0x5c) |
| 48 | #define OMAP_TC_OCPT2_PRIOR (TCMIF_BASE + 0xd0) |
| 49 | |
| 50 | /* external EMIFS chipselect regions */ |
| 51 | #define OMAP_CS0_PHYS 0x00000000 |
| 52 | #define OMAP_CS0_SIZE SZ_64M |
| 53 | |
| 54 | #define OMAP_CS1_PHYS 0x04000000 |
| 55 | #define OMAP_CS1_SIZE SZ_64M |
| 56 | |
| 57 | #define OMAP_CS1A_PHYS OMAP_CS1_PHYS |
| 58 | #define OMAP_CS1A_SIZE SZ_32M |
| 59 | |
| 60 | #define OMAP_CS1B_PHYS (OMAP_CS1A_PHYS + OMAP_CS1A_SIZE) |
| 61 | #define OMAP_CS1B_SIZE SZ_32M |
| 62 | |
| 63 | #define OMAP_CS2_PHYS 0x08000000 |
| 64 | #define OMAP_CS2_SIZE SZ_64M |
| 65 | |
| 66 | #define OMAP_CS2A_PHYS OMAP_CS2_PHYS |
| 67 | #define OMAP_CS2A_SIZE SZ_32M |
| 68 | |
| 69 | #define OMAP_CS2B_PHYS (OMAP_CS2A_PHYS + OMAP_CS2A_SIZE) |
| 70 | #define OMAP_CS2B_SIZE SZ_32M |
| 71 | |
| 72 | #define OMAP_CS3_PHYS 0x0c000000 |
| 73 | #define OMAP_CS3_SIZE SZ_64M |
| 74 | |
| 75 | #ifndef __ASSEMBLER__ |
| 76 | |
| 77 | /* EMIF Slow Interface Configuration Register */ |
| 78 | #define OMAP_EMIFS_CONFIG_REG __REG32(EMIFS_CONFIG) |
| 79 | |
| 80 | #define OMAP_EMIFS_CONFIG_FR (1 << 4) |
| 81 | #define OMAP_EMIFS_CONFIG_PDE (1 << 3) |
| 82 | #define OMAP_EMIFS_CONFIG_PWD_EN (1 << 2) |
| 83 | #define OMAP_EMIFS_CONFIG_BM (1 << 1) |
| 84 | #define OMAP_EMIFS_CONFIG_WP (1 << 0) |
| 85 | |
| 86 | #define EMIFS_CCS(n) __REG32(EMIFS_CS0_CONFIG + (4 * (n))) |
| 87 | #define EMIFS_ACS(n) __REG32(EMIFS_ACS0 + (4 * (n))) |
| 88 | |
| 89 | /* Almost all documentation for chip and board memory maps assumes |
| 90 | * BM is clear. Most devel boards have a switch to control booting |
| 91 | * from NOR flash (using external chipselect 3) rather than mask ROM, |
| 92 | * which uses BM to interchange the physical CS0 and CS3 addresses. |
| 93 | */ |
| 94 | static inline u32 omap_cs0_phys(void) |
| 95 | { |
| 96 | return (OMAP_EMIFS_CONFIG_REG & OMAP_EMIFS_CONFIG_BM) |
| 97 | ? OMAP_CS3_PHYS : 0; |
| 98 | } |
| 99 | |
| 100 | static inline u32 omap_cs3_phys(void) |
| 101 | { |
| 102 | return (OMAP_EMIFS_CONFIG_REG & OMAP_EMIFS_CONFIG_BM) |
| 103 | ? 0 : OMAP_CS3_PHYS; |
| 104 | } |
| 105 | |
| 106 | #endif /* __ASSEMBLER__ */ |
| 107 | |
| 108 | #endif /* __ASM_ARCH_TC_H */ |