/* * Copyright (c) 2009, yajin * Copyright (c) 2005-2008 Ingenic Semiconductor Inc. * */ #ifndef __BOARD_H__ #define __BOARD_H__ /* * Define the parameter of your PMP information here. * * ONDA 747: SDRAM:HY57V641620F * EXTAL OSC: Great 12M */ /* * Frequency of the external OSC in Hz. */ #define CFG_EXTAL 12000000 /* * CPU speed. */ #define CFG_CPU_SPEED 336000000 /* * Serial console. */ #define CFG_UART_BASE UART0_BASE #define CONFIG_BAUDRATE 57600 /* * SDRAM info. */ // SDRAM paramters #define CFG_SDRAM_BW16 0 /* Data bus width: 0-32bit, 1-16bit */ #define CFG_SDRAM_BANK4 1 /* Banks each chip: 0-2bank, 1-4bank */ #define CFG_SDRAM_ROW 12 /* Row address: 11 to 13 */ #define CFG_SDRAM_COL 8 /* Column address: 8 to 12 */ #define CFG_SDRAM_CASL 2 /* CAS latency: 2 or 3 */ // SDRAM Timings, unit: ns #define CFG_SDRAM_TRAS 45 /* RAS# Active Time */ #define CFG_SDRAM_RCD 20 /* RAS# to CAS# Delay */ #define CFG_SDRAM_TPC 20 /* RAS# Precharge Time */ #define CFG_SDRAM_TRWL 7 /* Write Latency Time */ #define CFG_SDRAM_TREF 7812 /* Refresh period: 8192 refresh cycles/64ms */ #endif