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Compex BIOS for SAMSUNG S3C4510B v1.20-lt
Liu Tao <[email protected]>
1. Disclaimer
-------------
This program is derived from
"Compex BIOS for SAMSUNG S3C4510B v1.20 (build 0801)"
I am not liable for any damage and liability caused
by the use of this program.
2. Quick Install
----------------
The default system configuration is:
ROM BANK0: 512K x 8 FLASH 8bit
ROM BANK1: 1M x 16 FLASH 16bit
DRAM BANK0: 4M x 16 SDRAM x 2 32bit
CPU CLOCK: 50MHz
If this configuration fits your board, type 'make',
and the bios image is ./imgtools/img/bios.img ,
burn bios.img to the FLASH at ROM BANK0, and enjoy!
The initial password is "arm".
3. Change system configuration
------------------------------
If the default system configuration doesn't fit your
borad, you can first try quick install, and change
system configuration in BIOS. If the BIOS can't boot
at all, you should edit ./imgtools/param.c to change
the default configuration, and make the new image.
4. Support your FLASH
---------------------
The BIOS supports following FLASH chips:
AM29F040B
AM29LV040B
AM29LV160BT/DT
AM29LV160BB/DB
HY29F040A
HY29LV160T
HY29LV160B
SST39VF040
SST39VF080
SST39VF016
If your FLASH chip is not supported, you should add
the vendor ID and device ID to ./biosapi/flash.h, and
add the detailed chip information to ./biosapi/flash.c
===>上面是一个boot的说明文件，我想请问一下， device ID是什么东西？怎么设置。另外，我把他的flash.h贴出来，请大家帮我分析一下，怎么得到 device ID
==》flash.h
#ifndef __FLASH_H
#define __FLASH_H
#include "board.h"
#define MAX_CHIPS 6
#define DEVICE_TYPE_X8 (8 / 
#define DEVICE_TYPE_X16 (16 /
#define DEVICE_TYPE_X32 (32 /
/* Addresses */
#define ADDR_MANUFACTURER 0x0000
#define ADDR_DEVICE_ID 0x0001
#define ADDR_SECTOR_LOCK 0x0002
#define ADDR_HANDSHAKE 0x0003
#define ADDR_UNLOCK_1 0x0555
#define ADDR_UNLOCK_2 0x02AA
/* Commands */
#define CMD_UNLOCK_DATA_1 0x00AA
#define CMD_UNLOCK_DATA_2 0x0055
#define CMD_MANUFACTURER_UNLOCK_DATA 0x0090
#define CMD_UNLOCK_BYPASS_MODE 0x0020
#define CMD_PROGRAM_UNLOCK_DATA 0x00A0
#define CMD_RESET_DATA 0x00F0
#define CMD_SECTOR_ERASE_UNLOCK_DATA 0x0080
#define CMD_SECTOR_ERASE_UNLOCK_DATA_2 0x0030
#define CMD_UNLOCK_SECTOR 0x0060
/* Manufacturers */
#define MANUFACTURER_AMD 0x0001
//#define MANUFACTURER_FUJITSU 0x0004
#define MANUFACTURER_FUJITSU 0x0014
#define MANUFACTURER_ATMEL 0x001f
#define MANUFACTURER_ST 0x0020
#define MANUFACTURER_TOSHIBA 0x0098
#define MANUFACTURER_HYNIX 0x00ad
#define MANUFACTURER_SST 0x00bf
#define MANUFACTURER_MX 0x00c2
#define MANUFACTURER_AMIC 0x0004
/* AMD */
#define AM29F040B 0x00a4
#define AM29F800BB 0x2258
#define AM29F800BT 0x22d6
#define AM29LV040B 0x004f
#define AM29LV800BB 0x225b
#define AM29LV800BT 0x22da
#define AM29LV160BT_DT 0x22c4
#define AM29LV160BB_DB 0x2249
/* HYNIX */
#define HY29F040A 0x00a4
#define HY29LV160T 0x22c4
#define HY29LV160B 0x2249
/* SST */
#define SST39VF040 0x00D7
#define SST39VF080 0x00D8
#define SST39VF016 0x00D9
/* MX */
#define MX29LV160BTC 0x2249
/* AMIC */
#define A29DL320F 0x227E
#define D6_MASK 0x40
struct erase_region {
unsigned long offset;
unsigned long erasesize;
unsigned long numblocks;
};
struct flchip {
unsigned long start; /* Offset within the map */
unsigned long size;
int buswidth; /* in octets */
struct mtd_info *mtd;
int numeraseregions;
struct erase_region regions[4];
};
struct mtd_info {
unsigned long offset; /* Offset within the memory */
unsigned long size; /* Total size of the MTD */
int numchips;
struct flchip chips[MAX_CHIPS];
};
struct flash_info {
const unsigned short mfr_id;
const unsigned short dev_id;
const char *name;
const unsigned long size;
const int numeraseregions;
const struct erase_region regions[4];
};
int flash_init(unsigned long rom_base);
int flash_read(unsigned long from,
unsigned long len, unsigned long *retlen, unsigned char *buf);
int flash_write(unsigned long to,
unsigned long len, unsigned long *retlen, const unsigned char *buf);
int flash_erase(unsigned long addr, unsigned long size);
#endif /* __FLASH_H */ |
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