add support for ox820 devices

scripts/oxnas/disk_create

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+[ "x$1" == "x"] && {
+    echo "Usage: $0 hard-disk-device"
+    exit 1
+}
+
+# uncomment line below and set to the correct disk
+disk=$1
+
+workarea="."
+
+stage1File=$workarea/stage1.wrapped
+ubootFile=$workarea/u-boot.wrapped
+ubootenvFile=$workarea/u-boot.env
+
+perl <<EOF | dd of="$disk" bs=512
+    print "\x00" x 0x1a4;
+    print "\x00\x5f\x01\x00";
+    print "\x00\xdf\x00\x00";
+    print "\x00\x80\x00\x00";
+    print "\x00" x (0x1b0 -0x1a4 -12 );
+    print "\x22\x80\x00\x00";
+    print "\x22\x00\x00\x00";
+    print "\x00\x80\x00\x00";
+EOF
+
+if [ -f $stage1File ];then
+	echo "Writing stage 1"
+	dd if=$stage1File    of="$disk" bs=512 seek=34
+fi
+
+if [ -f $ubootFile ];then
+	echo "Writing uboot"
+	dd if=$ubootFile     of="$disk" bs=512 seek=154
+fi
+
+	echo "Generating uboot env"
+pushd $workarea/u-boot-env
+./creatext2loadenv.sh
+popd
+
+if [ -f $ubootenvFile ];then
+	echo "Writing uboot env"
+	dd if=$ubootenvFile     of="$disk" bs=512 seek=558
+fi
+