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我用了两片Intel 28F640J3A (8MB 128K/sector) 接在SA1110上,
使用Jtag-0.5.1识别出了flash, 可以顺利的将u-boot.bin写入 flash.
在u-boot 中我选择了参考板为 dnp1110 ,为了打通串口,暂且不考虑SDRAM 的设置,
在include/configs/dnp1110.h中我这样配置:
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#ifndef __CONFIG_H
#define __CONFIG_H
/*
* If we are developing, we might want to start armboot from ram
* so we MUST NOT initialize critical regs like mem-timing ...
*/
#define CONFIG_INIT_CRITICAL /* undef for developing */
#undef CONFIG_INIT_CRITICAL /* undef for developing */
/*
* High Level Configuration Options
* (easy to change)
*/
#define CONFIG_SA1110 1 /* This is an SA1110 CPU */
#define CONFIG_DNP1110 1 /* on an DNP/1110 Board */
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
/*
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
/*
* Hardware drivers
*/
#define CONFIG_DRIVER_SMC91111
#define CONFIG_SMC91111_BASE 0x20000300
/*
* select serial console configuration
*/
#define CONFIG_SERIAL1 1 /* we use SERIAL 1 */
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_BAUDRATE 115200
#define CONFIG_COMMANDS (CONFIG_CMD_DFL)
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
#define CONFIG_BOOTDELAY 3
#define CONFIG_BOOTARGS "root=ramfs devfs=mount console=ttySA0,115200"
#define CONFIG_ETHADDR 02:80:ad:20:31:b8
#define CONFIG_NETMASK 255.255.0.0
#define CONFIG_IPADDR 172.22.2.23
#define CONFIG_SERVERIP 172.22.2.22
#define CONFIG_BOOTFILE "dnp1110"
#define CONFIG_BOOTCOMMAND "tftp; bootm"
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CONFIG_KGDB_BAUDRATE 230400 /* speed to run kgdb serial port */
#define CONFIG_KGDB_SER_INDEX 2 /* which serial port to use */
#endif
/*
* Miscellaneous configurable options
*/
#define CFG_LONGHELP /* undef to save memory */
#define CFG_PROMPT "DNP1110 # " /* Monitor Command Prompt */
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#define CFG_MAXARGS 16 /* max number of command args */
#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
#define CFG_MEMTEST_START 0xc0400000 /* memtest works on */
#define CFG_MEMTEST_END 0xc0800000 /* 4 ... 8 MB in DRAM */
#undef CFG_CLKS_IN_HZ /* everything, incl board info, in Hz */
#define CFG_LOAD_ADDR 0xc0200000 /* default load address */
#define CFG_HZ 3686400 /* incrementer freq: 3.6864 MHz */
#define CFG_CPUSPEED 0x0b /* set core clock to 220 MHz */
/* valid baudrates */
#define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
/*-----------------------------------------------------------------------
* Stack sizes
*
* The stack sizes are set up in start.S using the settings below
*/
#define CONFIG_STACKSIZE (128*1024) /* regular stack */
#ifdef CONFIG_USE_IRQ
#define CONFIG_STACKSIZE_IRQ (4*1024) /* IRQ stack */
#define CONFIG_STACKSIZE_FIQ (4*1024) /* FIQ stack */
#endif
/*-----------------------------------------------------------------------
* Physical Memory Map
*/
#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 banks of DRAM */
#define PHYS_SDRAM_1 0xc0000000 /* SDRAM Bank #1 */
#define PHYS_SDRAM_1_SIZE 0x02000000 /* 32 MB */
#define PHYS_FLASH_1 0x00000000 /* Flash Bank #1 */
#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
#define PHYS_FLASH_BANK_SIZE 0x00800000 /* 16 MB Banks */
#define PHYS_FLASH_SECT_SIZE 0x00010000 /* 128 KB sectors (x2) */
#define CFG_FLASH_BASE PHYS_FLASH_1
/*-----------------------------------------------------------------------
* FLASH and environment organization
*/
#define CFG_MAX_FLASH_BANKS 2 /* max number of memory banks */
#define CFG_MAX_FLASH_SECT 64 /* max number of sectors on one chip */
/* timeout values are in ticks */
#define CFG_FLASH_ERASE_TOUT (2*CFG_HZ) /* Timeout for Flash Erase */
#define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */
#define CFG_ENV_IS_IN_FLASH 2
#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0xF80000) /* Addr of Environment Sector */
#define CFG_ENV_SIZE 0x10000 /* Total Size of Environment Sector */
#endif /* __CONFIG_H */
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其中有以下参数不会计算:
#define PHYS_FLASH_SIZE 0x00800000 /* 8 MB */
#define PHYS_FLASH_BANK_SIZE 0x00800000 /* 16 MB Banks */
#define PHYS_FLASH_SECT_SIZE 0x00010000 /* 128 KB sectors (x2) */
请大侠指教,
因为我看过dnp1110的设置,总觉得这里的数值的含义不太明白!
还有请帮忙看看其余的参数,谢谢! |
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