1 /******************************************************************************
2 * Copyright (c) 2004, 2008 IBM Corporation
4 * This program and the accompanying materials
5 * are made available under the terms of the BSD License
6 * which accompanies this distribution, and is available at
7 * http://www.opensource.org/licenses/bsd-license.php
10 * IBM Corporation - initial implementation
11 *****************************************************************************/
16 /* ----------------------------------------------------------------------------
17 * NVRAM Log-Partition header design:
20 * 00h - signature ( 1 byte)
21 * 01h - checksum ( 1 byte)
22 * 02h - length ( 2 byte) value = 1st_byte*256 + 2nd_byte
23 * 04h - name (12 byte)
24 * space for partiton header = 16 byte
27 * 10h - offset ( 2 byte) from Partition Header to Data Section
28 * 12h - flags ( 2 byte) control flags
29 * 14h - pointer ( 4 byte) pointer to first free byte in Data Section
30 * relative to the beginning of the data section
31 * 18h - zero ( 32 byte) reserved as stack for four 64 bit register
32 * 38h - reserved ( 8 byte) reserved for 64 bit CRC (not implemented yet)
33 * space for header = 64 byte
36 * -------------------------------------------------------------------------------- */
39 #define LLFW_LOG_BE0_SIGNATURE 0x51 // signature for general firmware usage
40 #define LLFW_LOG_BE0_NAME_PREFIX 0x69626D2C // first 4 bytes of name: "ibm,"
41 #define LLFW_LOG_BE0_NAME 0x435055306C6F6700 // remaining 8 bytes : "CPU0log\0"
42 #define LLFW_LOG_BE0_LENGTH 0x2000 // Partition length in block of 16 bytes
43 #define LLFW_LOG_BE0_DATA_OFFSET 0x40 // offset in bytes between header and data
44 #define LLFW_LOG_BE0_FLAGS 0 // unused
46 #define LLFW_LOG_BE1_SIGNATURE 0x51 // signature for general firmware usage
47 #define LLFW_LOG_BE1_NAME_PREFIX 0x69626D2C // first 4 bytes of name: "ibm,"
48 #define LLFW_LOG_BE1_NAME 0x435055316C6F6700 // remaining 8 bytes : "CPU1log\0\0"
49 #define LLFW_LOG_BE1_LENGTH 0x500 // Partition length in block of 16 bytes
50 #define LLFW_LOG_BE1_DATA_OFFSET 0x40 // offset in bytes between header and data
51 #define LLFW_LOG_BE1_FLAGS 0x0 // unused
53 // positions of the initial values
54 #define LLFW_LOG_POS_CHECKSUM 0x01 // 1
55 #define LLFW_LOG_POS_LENGTH 0x02 // 2
56 #define LLFW_LOG_POS_NAME 0x04 // 4
57 #define LLFW_LOG_POS_DATA_OFFSET 0x10 // 16
58 #define LLFW_LOG_POS_FLAGS 0x12 // 18
59 #define LLFW_LOG_POS_POINTER 0x14 // 20
62 #define MAMBO_NVRAM_BASE 0x100000 // NVRAM Base for MAMBO
63 #define NVRAM_EMPTY_PATTERN 0x0000000000000000 // Pattern (64-bit) used to overwrite NVRAM