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/******************************************************************************
* Copyright (c) 2004, 2011 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#ifndef NVRAMLOG_H
#define NVRAMLOG_H
/* ----------------------------------------------------------------------------
* NVRAM Log-Partition header design:
*
* Partition Header
* 00h - signature ( 1 byte)
* 01h - checksum ( 1 byte)
* 02h - length ( 2 byte) value = 1st_byte*256 + 2nd_byte
* 04h - name (12 byte)
* space for partiton header = 16 byte
*
* Log Header
* 10h - offset ( 2 byte) from Partition Header to Data Section
* 12h - flags ( 2 byte) control flags
* 14h - pointer ( 4 byte) pointer to first free byte in Data Section
* relative to the beginning of the data section
* 18h - zero ( 32 byte) reserved as stack for four 64 bit register
* 38h - reserved ( 8 byte) reserved for 64 bit CRC (not implemented yet)
* space for header = 64 byte
* Data Section
* 40h - cyclic data
* -------------------------------------------------------------------------------- */
// initial values
#define LLFW_LOG_BE0_SIGNATURE 0x51 // signature for general firmware usage
#define LLFW_LOG_BE0_NAME_PREFIX 0x69626D2C // first 4 bytes of name: "ibm,"
#define LLFW_LOG_BE0_NAME 0x435055306C6F6700 // remaining 8 bytes : "CPU0log\0"
#define LLFW_LOG_BE0_LENGTH 0x200 // Partition length in block of 16 bytes
#define LLFW_LOG_BE0_DATA_OFFSET 0x40 // offset in bytes between header and data
#define LLFW_LOG_BE0_FLAGS 0 // unused
#define LLFW_LOG_BE1_SIGNATURE 0x51 // signature for general firmware usage
#define LLFW_LOG_BE1_NAME_PREFIX 0x69626D2C // first 4 bytes of name: "ibm,"
#define LLFW_LOG_BE1_NAME 0x435055316C6F6700 // remaining 8 bytes : "CPU1log\0\0"
#define LLFW_LOG_BE1_LENGTH 0x80 // Partition length in block of 16 bytes
#define LLFW_LOG_BE1_DATA_OFFSET 0x40 // offset in bytes between header and data
#define LLFW_LOG_BE1_FLAGS 0x0 // unused
// positions of the initial values
#define LLFW_LOG_POS_CHECKSUM 0x01 // 1
#define LLFW_LOG_POS_LENGTH 0x02 // 2
#define LLFW_LOG_POS_NAME 0x04 // 4
#define LLFW_LOG_POS_DATA_OFFSET 0x10 // 16
#define LLFW_LOG_POS_FLAGS 0x12 // 18
#define LLFW_LOG_POS_POINTER 0x14 // 20
// NVRAM info
#define NVRAM_EMPTY_PATTERN 0x0000000000000000 // Pattern (64-bit) used to overwrite NVRAM
#endif
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