Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / samsung / smdkv310 / tools / mksmdkv310spl.c

diff --git a/qemu/roms/u-boot/board/samsung/smdkv310/tools/mksmdkv310spl.c b/qemu/roms/u-boot/board/samsung/smdkv310/tools/mksmdkv310spl.c
new file mode 100644 (file)
index 0000000..9a64ca6
--- /dev/null
+++ b/qemu/roms/u-boot/board/samsung/smdkv310/tools/mksmdkv310spl.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#define CHECKSUM_OFFSET                (14*1024-4)
+#define BUFSIZE                        (16*1024)
+#define FILE_PERM              (S_IRUSR | S_IWUSR | S_IRGRP \
+                               | S_IWGRP | S_IROTH | S_IWOTH)
+/*
+* Requirement:
+* IROM code reads first 14K bytes from boot device.
+* It then calculates the checksum of 14K-4 bytes and compare with data at
+* 14K-4 offset.
+*
+* This function takes two filenames:
+* IN  "u-boot-spl.bin" and
+* OUT "u-boot-mmc-spl.bin" as filenames.
+* It reads the "u-boot-spl.bin" in 16K buffer.
+* It calculates checksum of 14K-4 Bytes and stores at 14K-4 offset in buffer.
+* It writes the buffer to "u-boot-mmc-spl.bin" file.
+*/
+
+int main(int argc, char **argv)
+{
+       int i, len;
+       unsigned char buffer[BUFSIZE] = {0};
+       int ifd, ofd;
+       unsigned int checksum = 0, count;
+
+       if (argc != 3) {
+               printf(" %d Wrong number of arguments\n", argc);
+               exit(EXIT_FAILURE);
+       }
+
+       ifd = open(argv[1], O_RDONLY);
+       if (ifd < 0) {
+               fprintf(stderr, "%s: Can't open %s: %s\n",
+                       argv[0], argv[1], strerror(errno));
+               exit(EXIT_FAILURE);
+       }
+
+       ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
+       if (ifd < 0) {
+               fprintf(stderr, "%s: Can't open %s: %s\n",
+                       argv[0], argv[2], strerror(errno));
+               if (ifd)
+                       close(ifd);
+               exit(EXIT_FAILURE);
+       }
+
+       len = lseek(ifd, 0, SEEK_END);
+       lseek(ifd, 0, SEEK_SET);
+
+       count = (len < CHECKSUM_OFFSET) ? len : CHECKSUM_OFFSET;
+
+       if (read(ifd, buffer, count) != count) {
+               fprintf(stderr, "%s: Can't read %s: %s\n",
+                       argv[0], argv[1], strerror(errno));
+
+               if (ifd)
+                       close(ifd);
+               if (ofd)
+                       close(ofd);
+
+               exit(EXIT_FAILURE);
+       }
+
+       for (i = 0, checksum = 0; i < CHECKSUM_OFFSET; i++)
+               checksum += buffer[i];
+
+       memcpy(&buffer[CHECKSUM_OFFSET], &checksum, sizeof(checksum));
+
+       if (write(ofd, buffer, BUFSIZE) != BUFSIZE) {
+               fprintf(stderr, "%s: Can't write %s: %s\n",
+                       argv[0], argv[2], strerror(errno));
+
+               if (ifd)
+                       close(ifd);
+               if (ofd)
+                       close(ofd);
+
+               exit(EXIT_FAILURE);
+       }
+
+       if (ifd)
+               close(ifd);
+       if (ofd)
+               close(ofd);
+
+       return EXIT_SUCCESS;
+}