ORIGEN: Add MMC SPL support
Adds mmc boot support.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/board/samsung/origen/tools/mkv310_image.c b/board/samsung/origen/tools/mkv310_image.c
new file mode 100644
index 0000000..158aab5
--- /dev/null
+++ b/board/samsung/origen/tools/mkv310_image.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#define BUFSIZE (16*1024)
+#define IMG_SIZE (16*1024)
+#define SPL_HEADER_SIZE 16
+#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \
+ | S_IWGRP | S_IROTH | S_IWOTH)
+#define SPL_HEADER "S5PC210 HEADER "
+/*
+* 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 "$(BOARD)-spl.bin as filenames.
+* It reads the "u-boot-spl.bin" in 16K buffer.
+* It calculates checksum of 14K-4 Bytes and stores at 14K-4 offset in buffer.
+* It writes the buffer to "$(BOARD)-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);
+
+ memcpy(&buffer[0], SPL_HEADER, SPL_HEADER_SIZE);
+
+ count = (len < (IMG_SIZE - SPL_HEADER_SIZE))
+ ? len : (IMG_SIZE - SPL_HEADER_SIZE);
+
+ if (read(ifd, buffer + SPL_HEADER_SIZE, 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; i < IMG_SIZE - SPL_HEADER_SIZE; i++)
+ checksum += buffer[i+16];
+
+ *(ulong *)buffer ^= 0x1f;
+ *(ulong *)(buffer+4) ^= checksum;
+
+ for (i = 1; i < SPL_HEADER_SIZE; i++)
+ buffer[i] ^= buffer[i-1];
+
+ 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;
+}