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authorMatt Porter <mporter@ti.com>2012-01-31 12:03:57 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-03-26 23:09:25 +0200
commit24de357a30dbabf8e0eb5acb43397851b0bc53fb (patch)
treef530b6ead4dbc66adb6af50936757e35289dcdb0 /arch/arm
parent71e6840279e3da7f5c0c1f8002bb9943bd90aec6 (diff)
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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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/armv7/omap-common/Makefile3
-rw-r--r--arch/arm/cpu/armv7/omap-common/spl.c5
-rw-r--r--arch/arm/cpu/armv7/omap-common/spl_ymodem.c76
-rw-r--r--arch/arm/include/asm/omap_common.h3
4 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index 3f7a0b2..447fcd5 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 3a2d957..99bb382 100644
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -133,6 +133,11 @@ void board_init_r(gd_t *id, ulong dummy)
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);
hang();
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 0000000..47663f7
--- /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, <www.ti.com>
+ *
+ * Matt Porter <mporter@ti.com>
+ *
+ * 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 <common.h>
+#include <xyzModem.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/omap_common.h>
+
+#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 34bec45..25f95b4 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