分类： 嵌入式
2009-07-30 17:18:26
依照开发板的内存区的配置情况, 修改board/Embest/edukit2410/lowlevel_init.S文件，
......
#define B1_BWSCON (DW32)
#define B2_BWSCON (DW16)
#define B3_BWSCON (DW16+UBLB)
#define B4_BWSCON (DW16)
#define B5_BWSCON (DW16)
#define B6_BWSCON (DW32)
#define B7_BWSCON (DW32)......
……
//#define B3_Tacs 0xc
//#define B3_Tcos 0x7
//#define B3_Tacc 0xf
//#define B3_Tcoh 0x1
#define B3_Tacs 0x0
#define B3_Tcos 0x0
#define B3_Tacc 0x7
#define B3_Tcoh 0x0
#define B3_Tah 0x0
#define B3_Tacp 0x0
#define B3_PMC 0x0
......
//#define B5_Tacs 0xc
//#define B5_Tcos 0x7
//#define B5_Tacc 0xf
//#define B5_Tcoh 0x1
#define B5_Tacs 0x0
#define B5_Tcos 0x0
#define B5_Tacc 0x7
#define B5_Tcoh 0x0
#define B5_Tah 0x0
#define B5_Tacp 0x0
#define B5_PMC 0x0
......
#define B6_MT 0x3 /* SDRAM */
#define B6_Trcd 0x1
#define B6_SCAN 0x1 /* 9bit */
#define B7_MT 0x3 /* SDRAM */
#define B7_Trcd 0x1 /* 3clk */
#define B7_SCAN 0x1 /* 9bit */
……
.word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
.word 0x32
.word 0x30
.word 0x30
修改其对GPIO和PLL的配置(请参阅开发板的硬件说明和芯片手册)：
......
#define FCLK_SPEED 1
#if FCLK_SPEED==0 /* Fout = 203MHz, Fin = 12MHz for Audio */
#define M_MDIV 0xC3
#define M_PDIV 0x4
#define M_SDIV 0x1
#elif FCLK_SPEED==1
#if defined(CONFIG_S
/* Fout = 202.8MHz */
#define M_MDIV 0xA1
#define M_PDIV 0x3
#define M_SDIV 0x1
#endif
#endif
#define USB_CLOCK 1
#if USB_CLOCK==0
#define U_M_MDIV 0xA1
#define U_M_PDIV 0x3
#define U_M_SDIV 0x1
#elif USB_CLOCK==1
#if defined(CONFIG_S
#define U_M_MDIV 0x48
#define U_M_PDIV 0x3
#endif
#if defined(CONFIG_S
#define U_M_MDIV 0x38
#define U_M_PDIV 0x2
#endif
#define U_M_SDIV 0x2
#endif
......
/* set up the I/O ports */
gpio->GPACON = 0x5fbfff;
gpio->GPBCON = 0x155559;
gpio->GPBUP = 0x7ff;
gpio->GPCCON = 0xaaaa55aa;
gpio->GPCUP = 0xffff;
gpio->GPDCON = 0xAAAAAAAA;
gpio->GPDUP = 0x0000FFFF;
gpio->GPECON = 0xa6aaaaaa;
gpio->GPEUP = 0xffff;
//gpio->GPEDATA = 0x2000;
gpio->GPFCON = 0x000055AA;
gpio->GPFUP = 0x000000FF;
#if defined(CONFIG_edukit2410_LED)
gpio->GPGCON = 0xff4af7b9;
gpio->GPGUP = 0xffff;
#else
gpio->GPGCON = 0xFF95FF
gpio->GPGUP = 0x0000FFFF;
#endif
//gpio->GPGDATA = 0xffcf;
gpio->GPHCON = 0x2aaaaa;
gpio->GPHUP = 0x000007FF;
gpio->EXTINT0=0x22222222;
gpio->EXTINT1=0x22222222;
gpio->EXTINT2=0x22222222;
#if defined(CONFIG_S
/* arch number of SMDK2410-Board */
gd->bd->bi_arch_number = MACH_TYPE_SMDK2410;
#endif
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x30000100;
icache_enable();
dcache_enable();
# if defined(CONFIG_edukit2410_LED)
//int board_init (void)设置完成后，LED1和LED2会亮起！
#endif
return 0;
}
......
/*
* High Level Configuration Options
* (easy to change)
*/
#define CONFIG_ARM920T 1 /* This is an ARM920T Core */
#define CONFIG_S
//#define CONFIG_SBC2410X 1 /* on a friendly-arm SBC-2410X Board */
#define CONFIG_edukit2410 1
#define CONFIG_edukit2410_LED 1
......
/*
* Command line configuration.
*/
#include
#define CONFIG_CMD_ASKENV
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_DATE
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_ELF
#define CONFIG_CMD_PING
#define CONFIG_CMD_NAND
#define CONFIG_CMD_REGINFO
#define CONFIG_CMD_JFFS2
/* JFFS2 Support 080218 */
#define CONFIG_CMD_USB
/* USB Support 080218 */
#define CONFIG_CMD_FAT
/* FAT support 080218 */
......
#define CFG_LONGHELP
/* undef to save memory */
#define CFG_PROMPT "[Edukit2410]#"
/*Monitor Command Prompt */
#define CFG_CBSIZE 256
/* Console I/O Buffer Size */
......
#define CFG_LOAD_ADDR 0x30800000
/* default load address */
......
/* timeout values are in ticks */
#define CFG_FLASH_ERASE_TOUT (5*CFG_HZ) /* Timeout for Flash Erase */
#define CFG_FLASH_WRITE_TOUT (5*CFG_HZ) /* Timeout for Flash Write */
#define CFG_ENV_IS_IN_NAND 1
#define CFG_ENV_OFFSET 0X30000
#define CFG_NAND_LEGACY
//#define CFG_ENV_IS_IN_FLASH 1
#define CFG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */
/*----------------------------------------------------------------------
* NAND flash settings
*/
#if defined(CONFIG_CMD_NAND)
#define CFG_NAND_BASE 0x4E000000
/* NandFlash控制器在SFR区起始寄存器地址 */
#define CFG_MAX_NAND_DEVICE 1
/* 支持的最在Nand Flash数据 */
#define SECTORSIZE 512
/* 1页的大小 */
#define NAND_SECTOR_SIZE SECTORSIZE
#define NAND_BLOCK_MASK 511
/* 页掩码 */
#define ADDR_COLUMN 1
/* 一个字节的Column地址 */
#define ADDR_PAGE 3
/* 3字节的页块地址!!!!!*/
#define ADDR_COLUMN_PAGE 4
/* 总共4字节的页块地址!!!!! */
#define NAND_ChipID_UNKNOWN 0x00
/* 未知芯片的ID号 */
#define NAND_MAX_FLOORS 1
#define NAND_MAX_CHIPS 1
//#define NAND_WAIT_READY(nand) NF_WaitRB()
//#define NAND_DISABLE_CE(nand) NF_SetCE(NFCE_HIGH)
//#define NAND_ENABLE_CE(nand) NF_SetCE(NFCE_LOW)
//#define WRITE_NAND_COMMAND(d, adr) NF_Cmd(d)
//#define WRITE_NAND_COMMANDW(d, adr) NF_CmdW(d)
//#define WRITE_NAND_ADDRESS(d, adr) NF_Addr(d)
//#define WRITE_NAND(d, adr) NF_Write(d)
//#define READ_NAND(adr) NF_Read()
/* Nand Flash命令层底层接口函数 */
#define WRITE_NAND_ADDRESS(d, adr) {rNFADDR = d;}
#define WRITE_NAND(d, adr) {rNFDATA = d;}
#define READ_NAND(adr) (rNFDATA)
#define NAND_WAIT_READY(nand) {while(!(rNFSTAT&(1<<0)));}
#define WRITE_NAND_COMMAND(d, adr) {rNFCMD = d;}
#define WRITE_NAND_COMMANDW(d, adr) NF_CmdW(d)
#define NAND_DISABLE_CE(nand) {rNFCONF |= (1<<11);}
#define NAND_ENABLE_CE(nand) {rNFCONF &= ~(1<<11);}
/* the following s are NOP's because S
#define NAND_CTL_CLRALE(nandptr)
#define NAND_CTL_SETALE(nandptr)
#define NAND_CTL_CLRCLE(nandptr)
#define NAND_CTL_SETCLE(nandptr)
/* 允许Nand Flash写校验 */
#define CONFIG_MTD_NAND_VERIFY_WRITE 1
......
#endif /* __CONFIG_H */
