broadcom/cygnus: add secimage and sign bootblock

secimage is a tool which adds a header and signature to the binary
first loaded by the soc. ARM core frequency is set to 1 Ghz.

BUG=chrome-os-partner:36421
BRANCH=broadcom-firmware
TEST=booted b0 board

Change-Id: Ia08600d45c47ee4f08d253980036916e44b0044a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 36284d1b242c26b0b5aac2894f7ed1790da1ef15
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chrome-internal-review.googlesource.com/197155
Original-Reviewed-by: Scott Branden <sbranden@broadcom.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@google.com>
Original-Tested-by: Daisuke Nojiri <dnojiri@google.com>
Original-Change-Id: Iaddd24006b368c8f37e075cb51e151e985029f3b
Original-Reviewed-on: https://chromium-review.googlesource.com/264417
Reviewed-on: http://review.coreboot.org/9914
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/util/broadcom/secimage/secimage.h b/util/broadcom/secimage/secimage.h
new file mode 100644
index 0000000..eff0b8f
--- /dev/null
+++ b/util/broadcom/secimage/secimage.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * 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.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+
+#ifndef _SECIMAGE_H_
+#define _SECIMAGE_H_
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#define FIELD1_OFFSET 16
+#define FIELD2_OFFSET 18
+#define FIELD3_OFFSET 20
+#define FIELD4_OFFSET 36
+#define FIELD5_OFFSET 40
+#define FIELD6_OFFSET 44
+#define FIELD7_OFFSET 48
+#define FIELD8_OFFSET 50
+#define FIELD9_OFFSET 60
+
+typedef struct Header_t {
+	uint32_t Tag;
+	uint32_t Length;
+	uint32_t Reserved;
+	uint32_t crc;
+} HEADER;
+
+int DataWrite(char *filename, char *buf, int length);
+int DataRead(char *filename, uint8_t *buf, int *length);
+int AppendHMACSignature(uint8_t *data, uint32_t length, char *filename,
+			uint32_t offset);
+int ReadBinaryFile(char *fname, uint8_t *buf, int maxlen);
+uint32_t calc_crc32(uint32_t initval, uint8_t *charArr, uint32_t arraySize);
+void FillHeaderFromConfigFile(char *h, char *ConfigFileName);
+
+#endif /* _SECIMAGE_H_ */