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https://github.com/brain-hackers/u-boot-brain
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SPL: Add YMODEM over UART load support
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>
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71e6840279
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@ -52,6 +52,9 @@ endif
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ifdef CONFIG_SPL_MMC_SUPPORT
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ifdef CONFIG_SPL_MMC_SUPPORT
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COBJS += spl_mmc.o
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COBJS += spl_mmc.o
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endif
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endif
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ifdef CONFIG_SPL_YMODEM_SUPPORT
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COBJS += spl_ymodem.o
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endif
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endif
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endif
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ifndef CONFIG_SPL_BUILD
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ifndef CONFIG_SPL_BUILD
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@ -132,6 +132,11 @@ void board_init_r(gd_t *id, ulong dummy)
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case BOOT_DEVICE_NAND:
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case BOOT_DEVICE_NAND:
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spl_nand_load_image();
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spl_nand_load_image();
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break;
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break;
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#endif
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#ifdef CONFIG_SPL_YMODEM_SUPPORT
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case BOOT_DEVICE_UART:
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spl_ymodem_load_image();
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break;
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#endif
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#endif
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default:
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default:
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printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
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printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
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76
arch/arm/cpu/armv7/omap-common/spl_ymodem.c
Normal file
76
arch/arm/cpu/armv7/omap-common/spl_ymodem.c
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@ -0,0 +1,76 @@
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/*
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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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@ -99,6 +99,9 @@ void spl_nand_load_image(void);
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/* MMC SPL functions */
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/* MMC SPL functions */
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void spl_mmc_load_image(void);
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void spl_mmc_load_image(void);
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/* YMODEM SPL functions */
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void spl_ymodem_load_image(void);
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#ifdef CONFIG_SPL_BOARD_INIT
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#ifdef CONFIG_SPL_BOARD_INIT
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void spl_board_init(void);
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void spl_board_init(void);
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#endif
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#endif
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@ -185,6 +185,9 @@ COBJS-$(CONFIG_UPDATE_TFTP) += update.o
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COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
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COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
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endif
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endif
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ifdef CONFIG_SPL_BUILD
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COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
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endif
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COBJS-y += console.o
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COBJS-y += console.o
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COBJS-y += dlmalloc.o
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COBJS-y += dlmalloc.o
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COBJS-y += memsize.o
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COBJS-y += memsize.o
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@ -55,6 +55,9 @@ else
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COBJS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += display_options.o
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COBJS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += display_options.o
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endif
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endif
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ifdef CONFIG_SPL_BUILD
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COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o
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endif
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COBJS-y += ctype.o
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COBJS-y += ctype.o
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COBJS-y += div64.o
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COBJS-y += div64.o
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COBJS-y += string.o
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COBJS-y += string.o
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