1 files changed, 86 insertions, 0 deletions
diff --git a/scripts/zynq_mkimage.c b/scripts/zynq_mkimage.c
new file mode 100644
index 0000000000..a096b834d1
--- /dev/null
+++ b/scripts/zynq_mkimage.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2013 Steffen Trumtrar <s.trumtrar@pengutronix.de>
+ *
+ * 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.
+ */
+
+#include <endian.h>
+#include <errno.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+static void usage(char *name)
+{
+	printf("Usage: %s barebox-flash-image <outfile>\n", name);
+}
+
+int main(int argc, char *argv[])
+{
+	FILE *ifile, *ofile;
+	unsigned int *buf;
+	const char *infile;
+	const char *outfile;
+	struct stat st;
+	unsigned int i;
+	unsigned long sum = 0;
+
+	if (argc != 3) {
+		usage(argv[0]);
+		exit(1);
+	}
+
+	infile = argv[1];
+	outfile = argv[2];
+
+	if (stat(infile, &st) == -1) {
+		perror("stat");
+		exit(EXIT_FAILURE);
+	}
+
+	buf = malloc(st.st_size);
+	if (!buf) {
+		fprintf(stderr, "Unable to allocate buffer\n");
+		return -1;
+	}
+	ifile = fopen(infile, "rb");
+	if (!ifile) {
+		fprintf(stderr, "Cannot open %s for reading\n",
+			infile);
+		free(buf);
+		exit(EXIT_FAILURE);
+	}
+	ofile = fopen(outfile, "wb");
+	if (!ofile) {
+		fprintf(stderr, "Cannot open %s for writing\n",
+			outfile);
+		fclose(ifile);
+		free(buf);
+		exit(EXIT_FAILURE);
+	}
+
+	fread(buf, 4, st.st_size, ifile);
+
+	for (i = 0x8; i < 0x12; i++)
+		sum += htole32(buf[i]);
+
+	sum = ~sum;
+	buf[i] = sum;
+
+	fwrite(buf, st.st_size / 4, 4, ofile);
+
+	fclose(ofile);
+	fclose(ifile);
+	free(buf);
+
+	return 0;
+}