1 files changed, 113 insertions, 0 deletions
diff --git a/roms/u-boot/tools/fit_common.c b/roms/u-boot/tools/fit_common.c
new file mode 100644
index 000000000..52b63296f
--- /dev/null
+++ b/roms/u-boot/tools/fit_common.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *		FIT image specific code abstracted from mkimage.c
+ *		some functions added to address abstraction
+ *
+ * All rights reserved.
+ */
+
+#include "imagetool.h"
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+int fit_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params)
+{
+	if (fdt_check_header(ptr) != EXIT_SUCCESS ||
+	    fit_check_format(ptr, IMAGE_SIZE_INVAL))
+		return EXIT_FAILURE;
+
+	return EXIT_SUCCESS;
+}
+
+int fit_check_image_types(uint8_t type)
+{
+	if (type == IH_TYPE_FLATDT)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+int mmap_fdt(const char *cmdname, const char *fname, size_t size_inc,
+	     void **blobp, struct stat *sbuf, bool delete_on_error,
+	     bool read_only)
+{
+	void *ptr;
+	int fd;
+
+	/* Load FIT blob into memory (we need to write hashes/signatures) */
+	fd = open(fname, (read_only ? O_RDONLY : O_RDWR) | O_BINARY);
+
+	if (fd < 0) {
+		fprintf(stderr, "%s: Can't open %s: %s\n",
+			cmdname, fname, strerror(errno));
+		goto err;
+	}
+
+	if (fstat(fd, sbuf) < 0) {
+		fprintf(stderr, "%s: Can't stat %s: %s\n",
+			cmdname, fname, strerror(errno));
+		goto err;
+	}
+
+	if (size_inc) {
+		sbuf->st_size += size_inc;
+		if (ftruncate(fd, sbuf->st_size)) {
+			fprintf(stderr, "%s: Can't expand %s: %s\n",
+				cmdname, fname, strerror(errno));
+		goto err;
+		}
+	}
+
+	errno = 0;
+	ptr = mmap(0, sbuf->st_size,
+		   (read_only ? PROT_READ : PROT_READ | PROT_WRITE), MAP_SHARED,
+		   fd, 0);
+	if ((ptr == MAP_FAILED) || (errno != 0)) {
+		fprintf(stderr, "%s: Can't read %s: %s\n",
+			cmdname, fname, strerror(errno));
+		goto err;
+	}
+
+	/* check if ptr has a valid blob */
+	if (fdt_check_header(ptr)) {
+		fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
+		goto err;
+	}
+
+	/* expand if needed */
+	if (size_inc) {
+		int ret;
+
+		ret = fdt_open_into(ptr, ptr, sbuf->st_size);
+		if (ret) {
+			fprintf(stderr, "%s: Cannot expand FDT: %s\n",
+				cmdname, fdt_strerror(ret));
+			goto err;
+		}
+	}
+
+	*blobp = ptr;
+	return fd;
+
+err:
+	if (fd >= 0)
+		close(fd);
+	if (delete_on_error)
+		unlink(fname);
+
+	return -1;
+}