int main(int argc, char *argv[])
{
#if defined(_WIN32) || defined(__CYGWIN__)
const char * port = "COM1";
#else
const char * port = "/dev/ttyS11";
#endif
int fcnt;
char * fnam[64];
extern char *optarg; /* getopt */
extern int optind; /* getopt */
int c;
/* the program name start just after the last slash */
if ((progname = (char *)strrchr(argv[0], '/')) == NULL)
progname = argv[0];
else
progname++;
/* parse the command line options */
while ((c = getopt(argc, argv, "dvhp:")) > 0) {
switch (c) {
case 'v':
show_version();
return 0;
case 'h':
show_usage();
return 1;
case 'p':
port = optarg;
break;
default:
parse_err(optarg);
return 2;
}
}
if (optind < argc) {
fcnt = 0;
do {
fnam[fcnt++] = argv[optind];
optind++;
} while (optind < argc);
return ymodem_send(port, fcnt, fnam);
}
return ymodem_recv(port);
}
void down_kernel(void)
{
void (*theKernel)(int zero, int arch, unsigned int params);
printf("download linux kernel through ymodem\n\r");
char *addr = (char *)0x21000000;
ymodem_recv(addr);
/* 设置启动参数 */
printf("Set boot params\n\r");
init_taglist();
/* 跳转执行*/
printf("Boot kernel...\n\r");
theKernel = (void (*)(int, int, unsigned int))0x21000040;/* Linux 内核入口地址 */
theKernel(0, 3466, 0x22000000); /* 第一个参数是0，第二个参数是机器码，第三个参数是启动参数地址 */
}