1 files changed, 80 insertions, 0 deletions
diff --git a/tools/sign-nand-image.c b/tools/sign-nand-image.c
new file mode 100644
index 00000000000..324ae227e4a
--- /dev/null
+++ b/tools/sign-nand-image.c
@@ -0,0 +1,80 @@
+/*
+ * signGP.c
+ * Read the x-load.bin file and write out the x-load.bin.ift file.
+ * The signed image is the original pre-pended with the size of the image
+ * and the load address.  If not entered on command line, file name is
+ * assumed to be x-load.bin in current directory and load address is
+ * 0x40200800. */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <malloc.h>
+
+#define SIGNATURE (('S' << 24) | ('g' << 16) | ('n' << 8) | 'P')
+
+int main(int argc, char *argv[])
+{
+    int i;
+    size_t ret;
+    char ifname[FILENAME_MAX], ofname[FILENAME_MAX], ch;
+    FILE *ifile, *ofile;
+    unsigned long loadaddr, len;
+    struct stat sinfo;
+    unsigned long signature = SIGNATURE;
+
+    /* Default to x-load.bin and 0x40200800. */
+    strcpy(ifname, "x-load.bin");
+    loadaddr = 0x40200800;
+
+    if ((argc == 2) || (argc == 3))
+	strcpy(ifname, argv[1]);
+
+    if (argc == 3)
+	loadaddr = strtoul(argv[2], NULL, 16);
+
+    /* Form the output file name. */
+    strcpy(ofname, ifname);
+    strcat(ofname, ".ift");
+
+    /* Open the input file. */
+    ifile = fopen(ifname, "rb");
+    if (ifile == NULL) {
+	printf("Cannot open %s\n", ifname);
+	exit(0);
+    }
+    /* Get file length. */
+    stat(ifname, &sinfo);
+    len = sinfo.st_size;
+
+    /* Open the output file and write it. */
+    ofile = fopen(ofname, "wb");
+    if (ofile == NULL) {
+	printf("Cannot open %s\n", ofname);
+	fclose(ifile);
+	exit(0);
+    }
+    /* Pad 1 sector of zeroes.
+     * ch = 0x00;
+     * for (i=0; i<0x200; i++)
+     *     fwrite(&ch, 1, 1, ofile); */
+
+    fwrite(&signature, 1, 4, ofile);
+    fwrite(&len, 1, 4, ofile);
+    fwrite(&loadaddr, 1, 4, ofile);
+    for (i = 0; i < len; i++) {
+	ret = fread(&ch, 1, 1, ifile);
+	if (ret != 1) {
+		fprintf(stderr, "fread didn't return 1!\n");
+		exit(-1);
+	}
+	fwrite(&ch, 1, 1, ofile);
+    }
+
+    fclose(ifile);
+    fclose(ofile);
+
+    return 0;
+}