From 24de357a30dbabf8e0eb5acb43397851b0bc53fb Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Tue, 31 Jan 2012 12:03:57 +0000 Subject: [PATCH] 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 Signed-off-by: Tom Rini --- arch/arm/cpu/armv7/omap-common/Makefile | 3 + arch/arm/cpu/armv7/omap-common/spl.c | 5 ++ arch/arm/cpu/armv7/omap-common/spl_ymodem.c | 76 +++++++++++++++++++++ arch/arm/include/asm/omap_common.h | 3 + common/Makefile | 3 + lib/Makefile | 3 + 6 files changed, 93 insertions(+) create mode 100644 arch/arm/cpu/armv7/omap-common/spl_ymodem.c diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index 3f7a0b25f0..447fcd5eff 100644 --- a/arch/arm/cpu/armv7/omap-common/Makefile +++ b/arch/arm/cpu/armv7/omap-common/Makefile @@ -52,6 +52,9 @@ endif ifdef CONFIG_SPL_MMC_SUPPORT COBJS += spl_mmc.o endif +ifdef CONFIG_SPL_YMODEM_SUPPORT +COBJS += spl_ymodem.o +endif endif ifndef CONFIG_SPL_BUILD diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c index 3a2d957731..99bb382750 100644 --- a/arch/arm/cpu/armv7/omap-common/spl.c +++ b/arch/arm/cpu/armv7/omap-common/spl.c @@ -132,6 +132,11 @@ void board_init_r(gd_t *id, ulong dummy) case BOOT_DEVICE_NAND: spl_nand_load_image(); break; +#endif +#ifdef CONFIG_SPL_YMODEM_SUPPORT + case BOOT_DEVICE_UART: + spl_ymodem_load_image(); + break; #endif default: printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device); diff --git a/arch/arm/cpu/armv7/omap-common/spl_ymodem.c b/arch/arm/cpu/armv7/omap-common/spl_ymodem.c new file mode 100644 index 0000000000..47663f7edf --- /dev/null +++ b/arch/arm/cpu/armv7/omap-common/spl_ymodem.c @@ -0,0 +1,76 @@ +/* + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2011 + * Texas Instruments, + * + * Matt Porter + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include +#include +#include +#include +#include +#include + +#define BUF_SIZE 1024 + +static int getcymodem(void) { + if (tstc()) + return (getc()); + return -1; +} + +void spl_ymodem_load_image(void) +{ + int size = 0; + int err; + int res; + int ret; + connection_info_t info; + char buf[BUF_SIZE]; + ulong store_addr = ~0; + ulong addr = 0; + + info.mode = xyzModem_ymodem; + ret = xyzModem_stream_open(&info, &err); + + if (!ret) { + while ((res = + xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0) { + if (addr == 0) + spl_parse_image_header((struct image_header *)buf); + store_addr = addr + spl_image.load_addr; + size += res; + addr += res; + memcpy((char *)(store_addr), buf, res); + } + } else { + printf("spl: ymodem err - %s\n", xyzModem_error(err)); + hang(); + } + + xyzModem_stream_close(&err); + xyzModem_stream_terminate(false, &getcymodem); + + printf("Loaded %d bytes\n", size); +} diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h index 34bec4568d..25f95b4bcd 100644 --- a/arch/arm/include/asm/omap_common.h +++ b/arch/arm/include/asm/omap_common.h @@ -99,6 +99,9 @@ void spl_nand_load_image(void); /* MMC SPL functions */ void spl_mmc_load_image(void); +/* YMODEM SPL functions */ +void spl_ymodem_load_image(void); + #ifdef CONFIG_SPL_BOARD_INIT void spl_board_init(void); #endif diff --git a/common/Makefile b/common/Makefile index fd9b3b053d..04faa0b1de 100644 --- a/common/Makefile +++ b/common/Makefile @@ -185,6 +185,9 @@ COBJS-$(CONFIG_UPDATE_TFTP) += update.o COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o endif +ifdef CONFIG_SPL_BUILD +COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o +endif COBJS-y += console.o COBJS-y += dlmalloc.o COBJS-y += memsize.o diff --git a/lib/Makefile b/lib/Makefile index e6e6ec6377..4b5734a21d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -55,6 +55,9 @@ else COBJS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += display_options.o endif +ifdef CONFIG_SPL_BUILD +COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o +endif COBJS-y += ctype.o COBJS-y += div64.o COBJS-y += string.o -- 2.30.2