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-rw-r--r--util/bimgtool/Makefile17
-rw-r--r--util/bimgtool/bimgtool.c222
2 files changed, 239 insertions, 0 deletions
diff --git a/util/bimgtool/Makefile b/util/bimgtool/Makefile
new file mode 100644
index 0000000000..3bd0f07a7d
--- /dev/null
+++ b/util/bimgtool/Makefile
@@ -0,0 +1,17 @@
+obj ?= $(shell pwd)
+
+HOSTCC ?= gcc
+CFLAGS ?= -g
+CFLAGS += -D_7ZIP_ST
+CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
+CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
+CFLAGS += -Wstrict-aliasing -Wshadow -Werror
+LDFLAGS += -g
+
+all: dep $(obj)/bimgtool
+
+clean:
+ rm -f $(obj)/bimgtool
+
+$(obj)/bimgtool: bimgtool.c
+ $(HOSTCC) $(CFLAGS) -o $@ $^
diff --git a/util/bimgtool/bimgtool.c b/util/bimgtool/bimgtool.c
new file mode 100644
index 0000000000..eed9248692
--- /dev/null
+++ b/util/bimgtool/bimgtool.c
@@ -0,0 +1,222 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 Imagination Technologies Ltd.
+ *
+ * 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; version 2 of
+ * the License.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+struct bimg_header {
+ uint32_t magic;
+ uint16_t ver_major;
+ uint16_t ver_minor;
+ uint32_t data_size;
+ uint32_t entry_addr;
+ uint32_t flags;
+ uint32_t data_crc;
+ uint32_t crc;
+} __attribute__((packed));
+
+struct bimg_data_header {
+ uint32_t size;
+ uint32_t dest_addr;
+ uint16_t crc;
+} __attribute__((packed));
+
+#define BIMG_MAGIC /* y */ 0xabbadaba /* doo! */
+
+#define BIMG_OP_MASK (0xf << 0)
+#define BIMG_OP_EXEC_RETURN (0x1 << 0)
+#define BIMG_OP_EXEC_NO_RETURN (0x2 << 0)
+#define BIMG_DATA_CHECKSUM (0x1 << 4)
+
+#define MAX_RECORD_BYTES 0x8000
+
+#define CRC_INIT 0xffff
+
+#define error(msg...) fprintf(stderr, "ERROR: " msg)
+
+#define error_ret(ret, msg...) { \
+ error(msg); \
+ return ret; \
+}
+
+static uint16_t crc_x25(uint16_t crc, void *void_buf, size_t size)
+{
+ static const uint16_t crc_table[16] = {
+ 0x0000, 0x1021, 0x2042, 0x3063,
+ 0x4084, 0x50a5, 0x60c6, 0x70e7,
+ 0x8108, 0x9129, 0xa14a, 0xb16b,
+ 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+ };
+ uint8_t *buf, data;
+
+ for (buf = void_buf; size; size--) {
+ data = *buf++;
+ crc = (crc << 4) ^ crc_table[((crc >> 12) ^ (data >> 4)) & 0xf];
+ crc = (crc << 4) ^ crc_table[((crc >> 12) ^ (data >> 0)) & 0xf];
+ }
+
+ return crc;
+}
+
+static int write_binary(FILE *out, FILE *in, struct bimg_header *hdr)
+{
+ static uint8_t file_buf[MAX_RECORD_BYTES];
+ struct bimg_data_header data_hdr;
+ size_t n_written;
+
+ data_hdr.dest_addr = hdr->entry_addr;
+
+ while ((data_hdr.size = fread(file_buf, 1, sizeof(file_buf), in))) {
+ data_hdr.crc = crc_x25(CRC_INIT, &data_hdr,
+ sizeof(data_hdr) - sizeof(data_hdr.crc));
+
+ if (fwrite(&data_hdr, sizeof(data_hdr), 1, out) != 1)
+ error_ret(-EIO, "Failed to write data header: %d\n",
+ errno);
+
+ n_written = fwrite(file_buf, 1, data_hdr.size, out);
+ if (n_written != data_hdr.size)
+ error_ret(-EIO, "Failed to write to output file: %d\n",
+ errno);
+
+ data_hdr.dest_addr += n_written;
+ hdr->data_size += sizeof(data_hdr) + n_written;
+ hdr->data_crc = crc_x25(hdr->data_crc, file_buf, n_written);
+ }
+
+ if (ferror(in))
+ error_ret(-EIO, "Failed to read input file\n");
+
+ return 0;
+}
+
+static int write_final(FILE *out, struct bimg_header *hdr)
+{
+ struct bimg_data_header data_hdr = {
+ .size = 0,
+ .dest_addr = ~0,
+ };
+
+ data_hdr.crc = crc_x25(CRC_INIT, &data_hdr,
+ sizeof(data_hdr) - sizeof(data_hdr.crc));
+
+ if (fwrite(&data_hdr, sizeof(data_hdr), 1, out) != 1)
+ error_ret(-EIO, "Failed to write data header: %d\n", errno);
+
+ hdr->data_size += sizeof(data_hdr);
+
+ return 0;
+}
+
+static void usage(FILE *f)
+{
+ fprintf(f,
+ "Usage: bimgtool <input> <output> <base-address>\n"
+ "\n"
+ "bimgtool is a simple tool which generates boot images in the "
+ "BIMG format used in systems designed by Imagination "
+ "Technologies, for example the Danube SoC. This version of the "
+ "tool generates BIMG version 1.0 images.\n"
+ "\n"
+ " input: The binary file to be converted to a BIMG\n"
+ " output: The name of the output BIMG file\n"
+ " base-address: The address in memory at which you wish the "
+ "input binary to be loaded.\n");
+}
+
+int main(int argc, char *argv[])
+{
+ const char *in_filename, *out_filename;
+ FILE *in_file, *out_file;
+ int err;
+ struct bimg_header hdr = {
+ .magic = BIMG_MAGIC,
+ .ver_major = 1,
+ .ver_minor = 0,
+ .flags = BIMG_OP_EXEC_NO_RETURN | BIMG_DATA_CHECKSUM,
+ .data_crc = CRC_INIT,
+ };
+
+ if (argc != 4) {
+ usage(stderr);
+ goto out_err;
+ }
+
+ in_filename = argv[1];
+ out_filename = argv[2];
+ hdr.entry_addr = strtoul(argv[3], NULL, 16);
+
+ in_file = fopen(in_filename, "r");
+ if (!in_file) {
+ error("Failed to open input file '%s'\n", in_filename);
+ goto out_err;
+ }
+
+ out_file = fopen(out_filename, "w");
+ if (!out_file) {
+ error("Failed to open output file '%s'\n", out_filename);
+ goto out_err_close_in;
+ }
+
+ if (fseek(out_file, sizeof(hdr), SEEK_SET)) {
+ error("Failed to seek past header: %d\n", errno);
+ goto out_err_close_out;
+ }
+
+ err = write_binary(out_file, in_file, &hdr);
+ if (err) {
+ error("Failed to write binary: %d\n", err);
+ goto out_err_close_out;
+ }
+
+ err = write_final(out_file, &hdr);
+ if (err) {
+ error("Failed to write final record: %d\n", err);
+ goto out_err_close_out;
+ }
+
+ hdr.crc = crc_x25(CRC_INIT, &hdr, sizeof(hdr) - sizeof(hdr.crc));
+
+ if (fseek(out_file, 0, SEEK_SET)) {
+ error("Failed to seek to header: %d\n", errno);
+ goto out_err_close_out;
+ }
+
+ if (fwrite(&hdr, sizeof(hdr), 1, out_file) != 1) {
+ error("Failed to write header: %d\n", errno);
+ goto out_err_close_out;
+ }
+
+ fclose(in_file);
+ fclose(out_file);
+ return EXIT_SUCCESS;
+
+out_err_close_out:
+ fclose(out_file);
+out_err_close_in:
+ fclose(in_file);
+out_err:
+ return EXIT_FAILURE;
+}