branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 70 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/files/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h b/target/linux/brcm63xx/files/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h
new file mode 100644
index 000000000..2730edc9a
--- /dev/null
+++ b/target/linux/brcm63xx/files/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h
@@ -0,0 +1,70 @@
+#ifndef __BCM63XX_TAG_H
+#define __BCM63XX_TAG_H
+
+#define TAGVER_LEN 4                   /* Length of Tag Version */
+#define TAGLAYOUT_LEN 4                /* Length of FlashLayoutVer */
+#define SIG1_LEN 20		       /* Company Signature 1 Length */
+#define SIG2_LEN 14                    /* Company Signature 2 Lenght */
+#define BOARDID_LEN 16		       /* Length of BoardId */
+#define ENDIANFLAG_LEN 2               /* Endian Flag Length */
+#define CHIPID_LEN 6		       /* Chip Id Length */
+#define IMAGE_LEN 10                   /* Length of Length Field */
+#define ADDRESS_LEN 12                 /* Length of Address field */
+#define DUALFLAG_LEN 2		       /* Dual Image flag Length */
+#define INACTIVEFLAG_LEN 2	       /* Inactie Flag Length */
+#define RSASIG_LEN 20   	       /* Length of RSA Signature in tag */
+#define TAGINFO1_LEN 30                /* Length of vendor information field1 in tag */
+#define FLASHLAYOUTVER_LEN 4	       /* Length of Flash Layout Version String tag */
+#define TAGINFO2_LEN 16                /* Length of vendor information field2 in tag */
+#define CRC_LEN 4                      /* Length of CRC in bytes */
+#define ALTTAGINFO_LEN 54              /* Alternate length for vendor information; Pirelli */
+
+#define NUM_PIRELLI 2
+#define IMAGETAG_CRC_START		0xFFFFFFFF
+
+#define PIRELLI_BOARDS { \
+  "AGPF-S0", \
+  "DWV-S0", \
+}
+
+/*
+ * The broadcom firmware assumes the rootfs starts the image,
+ * therefore uses the rootfs start (flashImageAddress)
+ * to determine where to flash the image.  Since we have the kernel first
+ * we have to give it the kernel address, but the crc uses the length
+ * associated with this address (rootLength), which is added to the kernel
+ * length (kernelLength) to determine the length of image to flash and thus
+ * needs to be rootfs + deadcode (jffs2 EOF marker)
+*/
+
+struct bcm_tag {
+	char tagVersion[TAGVER_LEN];           // 0-3: Version of the image tag
+	char sig_1[SIG1_LEN];                  // 4-23: Company Line 1
+	char sig_2[SIG2_LEN];                  // 24-37: Company Line 2
+	char chipid[CHIPID_LEN];               // 38-43: Chip this image is for
+	char boardid[BOARDID_LEN];             // 44-59: Board name
+	char big_endian[ENDIANFLAG_LEN];       // 60-61: Map endianness -- 1 BE 0 LE
+	char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of image start (kernel for OpenWRT, rootfs for stock firmware)
+	char flashRootLength[IMAGE_LEN];            // 106-115: Size of rootfs for flashing
+	char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	char dualImage[DUALFLAG_LEN];          // 138-139: Unused at present
+	char inactiveFlag[INACTIVEFLAG_LEN];   // 140-141: Unused at present
+        char rsa_signature[RSASIG_LEN];        // 142-161: RSA Signature (unused at present; some vendors may use this)
+	char information1[TAGINFO1_LEN];       // 162-191: Compilation and related information (not generated/used by OpenWRT)
+        char flashLayoutVer[FLASHLAYOUTVER_LEN];// 192-195: Version flash layout
+        char fskernelCRC[CRC_LEN];             // 196-199: kernel+rootfs CRC32
+	char information2[TAGINFO2_LEN];       // 200-215: Unused at present except Alice Gate where is is information
+	char imageCRC[CRC_LEN];                // 216-219: CRC32 of image less imagetag (kernel for Alice Gate)
+        char rootfsCRC[CRC_LEN];               // 220-223: CRC32 of rootfs partition
+        char kernelCRC[CRC_LEN];               // 224-227: CRC32 of kernel partition
+        char imageSequence[4];		       // 228-231: Image sequence number
+        char rootLength[4];                    // 232-235: steal from reserved1 to keep the real root length so we can use in the flash map even after we have change the rootLength to 0 to satisfy devices that check CRC on every boot
+        char headerCRC[CRC_LEN];               // 236-239: CRC32 of header excluding tagVersion
+        char reserved2[16];                    // 240-255: Unused at present
+};
+
+#endif /* __BCM63XX_TAG_H */