iic eeprom updating boot loader. upload this file for the recovery

xmodem download.  Then download the image you want in the eeprom.
This will burn the image into the eeprom.  You must then reset the
unit and the new eeprom image will be used for booting...

3 files changed, 98 insertions, 0 deletions

diff --git a/sys/boot/arm/at91/boot0iic/Makefile b/sys/boot/arm/at91/boot0iic/Makefile
new file mode 100644
index 0000000..4da1388
--- /dev/null
+++ b/sys/boot/arm/at91/boot0iic/Makefile
@@ -0,0 +1,12 @@
+#  $FreeBSD$
+
+.PATH:	${.CURDIR}/../boot0
+
+P=boot0iic
+FILES=${P}
+SRCS=arm_init.s main.c doit.c
+NO_MAN=
+LDFLAGS=-e 0 -T ${.CURDIR}/../linker.cfg
+OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
+
+.include <bsd.prog.mk>
diff --git a/sys/boot/arm/at91/boot0iic/doit.c b/sys/boot/arm/at91/boot0iic/doit.c
new file mode 100644
index 0000000..6a3fdaf
--- /dev/null
+++ b/sys/boot/arm/at91/boot0iic/doit.c
@@ -0,0 +1,44 @@
+/*-
+ * Copyright (c) 2006 M. Warner Losh.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include "lib.h"
+#include "at91rm9200.h"
+#include "at91rm9200_lowlevel.h"
+
+typedef void fn_t(void);
+void doit(void *);
+
+void
+doit(void *addr)
+{
+	int sec;
+
+	InitEEPROM();
+	printf("Writing EEPROM from 0x%x to addr 0\r\n", addr);
+	WriteEEPROM(0, addr, 8192);
+	sec = GetSeconds();
+	printf("Write complete.  Press reset\r\n");
+}
diff --git a/sys/boot/arm/at91/boot0iic/main.c b/sys/boot/arm/at91/boot0iic/main.c
new file mode 100644
index 0000000..cc3fb25
--- /dev/null
+++ b/sys/boot/arm/at91/boot0iic/main.c
@@ -0,0 +1,42 @@
+/*-
+ * Copyright (c) 2006 M. Warner Losh.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include "at91rm9200.h"
+#include "lib.h"
+#include "at91rm9200_lowlevel.h"
+
+extern void doit(void *);
+
+int
+main(void)
+{
+	char *addr = (char *)SDRAM_BASE + (1 << 20); /* Load to base + 1MB */
+
+	while (xmodem_rx(addr) == -1)
+		continue;
+	doit(addr);
+	return (1);
+}