cmd_load.c

	ulong addr = 0;

	size = 0;
	info.mode = xyzModem_ymodem;
	res = xyzModem_stream_open (&info, &err);
	if (!res) {

		while ((res =
			xyzModem_stream_read (ymodemBuf, 1024, &err)) > 0) {
			store_addr = addr + offset;
			size += res;
			addr += res;
#ifndef CFG_NO_FLASH
			if (addr2info (store_addr)) {
				int rc;

				rc = flash_write ((char *) ymodemBuf,
						  store_addr, res);
				if (rc != 0) {
					flash_perror (rc);
					return (~0);
				}
			} else
#endif
			{
				memcpy ((char *) (store_addr), ymodemBuf,
					res);
			}

		}
	} else {
		printf ("%s\n", xyzModem_error (err));
	}

	xyzModem_stream_close (&err);
	xyzModem_stream_terminate (false, &getcxmodem);


	flush_cache (offset, size);

	printf ("## Total Size      = 0x%08x = %d Bytes\n", size, size);
	sprintf (buf, "%X", size);
	setenv ("filesize", buf);

	return offset;
}

#endif

/* -------------------------------------------------------------------- */

#if defined(CONFIG_CMD_LOADS)

#ifdef	CFG_LOADS_BAUD_CHANGE
U_BOOT_CMD(
	loads, 3, 0,	do_load_serial,
	"loads   - load S-Record file over serial line\n",
	"[ off ] [ baud ]\n"
	"    - load S-Record file over serial line"
	" with offset 'off' and baudrate 'baud'\n"
);

#else	/* ! CFG_LOADS_BAUD_CHANGE */
U_BOOT_CMD(
	loads, 2, 0,	do_load_serial,
	"loads   - load S-Record file over serial line\n",
	"[ off ]\n"
	"    - load S-Record file over serial line with offset 'off'\n"
);
#endif	/* CFG_LOADS_BAUD_CHANGE */

/*
 * SAVES always requires LOADS support, but not vice versa
 */


#if defined(CONFIG_CMD_SAVES)
#ifdef	CFG_LOADS_BAUD_CHANGE
U_BOOT_CMD(
	saves, 4, 0,	do_save_serial,
	"saves   - save S-Record file over serial line\n",
	"[ off ] [size] [ baud ]\n"
	"    - save S-Record file over serial line"
	" with offset 'off', size 'size' and baudrate 'baud'\n"
);
#else	/* ! CFG_LOADS_BAUD_CHANGE */
U_BOOT_CMD(
	saves, 3, 0,	do_save_serial,
	"saves   - save S-Record file over serial line\n",
	"[ off ] [size]\n"
	"    - save S-Record file over serial line with offset 'off' and size 'size'\n"
);
#endif	/* CFG_LOADS_BAUD_CHANGE */
#endif
#endif


#if defined(CONFIG_CMD_LOADB)
U_BOOT_CMD(
	loadb, 3, 0,	do_load_serial_bin,
	"loadb   - load binary file over serial line (kermit mode)\n",
	"[ off ] [ baud ]\n"
	"    - load binary file over serial line"
	" with offset 'off' and baudrate 'baud'\n"
);

U_BOOT_CMD(
	loady, 3, 0,	do_load_serial_bin,
	"loady   - load binary file over serial line (ymodem mode)\n",
	"[ off ] [ baud ]\n"
	"    - load binary file over serial line"
	" with offset 'off' and baudrate 'baud'\n"
);

#endif

/* -------------------------------------------------------------------- */

#if defined(CONFIG_CMD_HWFLOW)
int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	extern int hwflow_onoff(int);

	if (argc == 2) {
		if (strcmp(argv[1], "off") == 0)
			hwflow_onoff(-1);
		else
			if (strcmp(argv[1], "on") == 0)
				hwflow_onoff(1);
			else
				printf("Usage: %s\n", cmdtp->usage);
	}
	printf("RTS/CTS hardware flow control: %s\n", hwflow_onoff(0) ? "on" : "off");
	return 0;
}

/* -------------------------------------------------------------------- */

U_BOOT_CMD(
	hwflow, 2, 0,	do_hwflow,
	"hwflow  - turn the harwdare flow control on/off\n",
	"[on|off]\n - change RTS/CTS hardware flow control over serial line\n"
);

#endif