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mon_erc32.h
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mon_erc32.h
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/**************************************************************************
*
* Filename:
*
* erc32_mon.h
*
* Description:
*
* This is the monitor for Generic TSC695F computer
*
* Yao Fei ([email protected])
*
**************************************************************************/
/*----------------------- 配置区域 ----------------------------------*/
/* If use EEPROM */
//#define __USE_EEPROM 1
// Check UART timeout
#define __USE_TIMEOUT 1
//Update PROM 容许更改PROM区域，仅适合ATMEL EEPROM代用的情况
//#define __UPDATE_PROM
/* ---------------------- 计算机硬件配置区域 -----------------------------*/
/*
* ------ 内存布局 ------
* 0 PROM mon_erc32
* 32K - 160K PROM for backup
*
* 0x200_0000 User Application text
* 0x208_0000 data segment
* 0x217_0000 erc32_mon 运行区域 (64K）
* 0x218_0000 留给用户程序
* 0x21C_0000 Reserved
* 0x21F_FFF0 数字签名区域
*
* 0x400_0000 EEPROM
*/
#define RAM_START 0x02000000
#define RAM_SIZE 2048
#define PATCH_ZONE (RAM_START + 256*7*1024)
// EEPROM size in MByte s
// EEPROM的起始地址
// 通用设计，EEPROM在扩展内存区
#define EEPROM_BASE 0x04000000
#define EEPROM_SIZE 2048
#define EEPROM_ZONE_LEN (EEPROM_SIZE/4)
#define EEPATCH_ZONE (EEPROM_BASE + EEPROM_ZONE_LEN*7*1024/2) /* 1.75M - 2M */
#define PROM_PROG_START (32*1024)
#define PROM_LENGTH (5*32*1024)
// 备份程序运行位置，跳过512K，便于修改主程序
#define BACKUP_PROG_START (RAM_START + EEPROM_ZONE_LEN*1024)
//数字签名
#define SIG_ZONE (RAM_START + RAM_SIZE*1024 - 16)
#define SIG_WORD_1 0x12345678
#define SIG_WORD_2 0x9abcdef0
#define SIG_WORD_3 0xeb90146f
/**********************************************************************/
typedef unsigned char uchar;
typedef unsigned int uint;
typedef enum {
COLD_BOOT = 0xffffffff, /* 冷启动 */
WARM_BOOT = 0xAAAA5555, /* 温启动 */
PROM_BOOT = 0xA5A5A5A5 /* 直接从PROM引导 */
} BOOTMODE;
extern BOOTMODE boot_status; // cold, warm or hot
// 串口等待超时计数
#define MAX_TIMEOUT 0x20000
// -------------- erc32_io ---------------------
void put_char (char c);
void put_string (char *s);
void put_debug_char (unsigned char c);
int get_char ();
int hex (unsigned char ch);
void print_u32(unsigned v);
// -------------- EEPROM ------------------------
// 写一个"扇区" 128字
int write_sector(unsigned *data, unsigned sec);
// 把加载到内存的代码写入EEPROM
int write_eeprom(unsigned last_address);
// 从EEPROM加载
int load_eeprom();
// 从PROM加载
int load_prom();
// EDAC control
void inline enable_edac();
void inline disable_edac();
void inline clear_watchdog();
// memcpy in word by word, 32bit
// dst : dest
// src : sorce
// len : length in 32bit words
// return: always 0
int memcpy_w(int *dst, int *src, int len);
/* Update PROM */
int write_prom(int flag);