Adds support for loading U-Boot from UART using YMODEM protocol. If YMODEM support is enabled in SPL and the romcode indicates that SPL loaded via UART then SPL will wait for start of a YMODEM transfer via the console port. Signed-off-by: Matt Porter <mporter@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2011
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* Texas Instruments, <www.ti.com>
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*
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* Matt Porter <mporter@ti.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <xyzModem.h>
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#include <asm/u-boot.h>
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#include <asm/utils.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/omap_common.h>
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#define BUF_SIZE 1024
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static int getcymodem(void) {
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if (tstc())
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return (getc());
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return -1;
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}
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void spl_ymodem_load_image(void)
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{
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int size = 0;
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int err;
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int res;
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int ret;
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connection_info_t info;
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char buf[BUF_SIZE];
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ulong store_addr = ~0;
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ulong addr = 0;
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info.mode = xyzModem_ymodem;
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ret = xyzModem_stream_open(&info, &err);
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if (!ret) {
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while ((res =
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xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0) {
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if (addr == 0)
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spl_parse_image_header((struct image_header *)buf);
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store_addr = addr + spl_image.load_addr;
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size += res;
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addr += res;
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memcpy((char *)(store_addr), buf, res);
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}
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} else {
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printf("spl: ymodem err - %s\n", xyzModem_error(err));
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hang();
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}
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xyzModem_stream_close(&err);
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xyzModem_stream_terminate(false, &getcymodem);
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printf("Loaded %d bytes\n", size);
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}
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