| 1 | /* |
| 2 | * device board |
| 3 | * |
| 4 | * Copyright 2009 (C) Qi Hardware Inc., |
| 5 | * Author: Xiangfu Liu <xiangfu@sharism.cc> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License |
| 9 | * version 3 as published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 19 | * Boston, MA 02110-1301, USA |
| 20 | */ |
| 21 | #ifndef _CONFIGS_H |
| 22 | #define _CONFIGS_H |
| 23 | |
| 24 | /* Here are these common definitions */ |
| 25 | /* Once your system configration change, just modify the file */ |
| 26 | |
| 27 | #include "target/xburst_types.h" |
| 28 | |
| 29 | #define CONFIG_NR_DRAM_BANKS 1 /* SDRAM BANK Number: 1, 2*/ |
| 30 | #define SDRAM_CASL 3 /* CAS latency: 2 or 3 */ |
| 31 | /* SDRAM Timings, unit: ns */ |
| 32 | #define SDRAM_TRAS 45 /* RAS# Active Time */ |
| 33 | #define SDRAM_RCD 20 /* RAS# to CAS# Delay */ |
| 34 | #define SDRAM_TPC 20 /* RAS# Precharge Time */ |
| 35 | #define SDRAM_TRWL 7 /* Write Latency Time */ |
| 36 | #define SDRAM_TREF 15625 /* Refresh period: 4096 refresh cycles/64ms */ |
| 37 | |
| 38 | extern volatile u32 CPU_ID; |
| 39 | extern volatile u8 SDRAM_BW16; |
| 40 | extern volatile u8 SDRAM_BANK4; |
| 41 | extern volatile u8 SDRAM_ROW; |
| 42 | extern volatile u8 SDRAM_COL; |
| 43 | extern volatile u8 CONFIG_MOBILE_SDRAM; |
| 44 | extern volatile u32 CFG_CPU_SPEED; |
| 45 | extern volatile u8 PHM_DIV; |
| 46 | extern volatile u32 CFG_EXTAL; |
| 47 | extern volatile u32 CONFIG_BAUDRATE; |
| 48 | extern volatile u32 UART_BASE; |
| 49 | extern volatile u8 CONFIG_MOBILE_SDRAM; |
| 50 | extern volatile u8 IS_SHARE; |
| 51 | #endif |
| 52 | |
