fel-boot native binary for booting into FEL from SD-Card

fel-boot.c

+/*
+ * (C) Copyright 2011 Henrik Nordstrom <henrik@henriknordstrom.net>
+ *
+ * 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
+ */
+
+/*
+
+Build instructions:
+
+arm-none-linux-gnueabi-gcc  -g  -Os   -fno-common -ffixed-r8 -msoft-float -fno-builtin -ffreestanding -nostdinc -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fno-toplevel-reorder  fel-boot.c -c
+
+arm-none-linux-gnueabi-objcopy -O binary fel-boot.o fel-boot.bin
+
+mksunxiboot fel.bin fel-boot.sunxi
+
+Install instructions:
+
+dd if=fel-boot.sunxi of=/dev/sdX bs=1024 seek=8
+
+*/
+
+
+void _start(void)
+{
+	((void (*)(void))0xffff0020)();
+}