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authorblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-10-05 10:12:53 +0000
committerblogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-10-05 10:12:53 +0000
commit5c105d9f3fd086aff195d3849dcf847d6b0bd927 (patch)
tree1229a11f725bfa58aa7c57a76898553bb5f6654a /target/linux/brcm63xx/files/arch/mips/include/asm
downloadopenwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.tar.gz
openwrt-5c105d9f3fd086aff195d3849dcf847d6b0bd927.zip
branch Attitude Adjustment
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/files/arch/mips/include/asm')
-rw-r--r--target/linux/brcm63xx/files/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h70
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 */