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/**************************************************************************
*
* BRIEF MODULE DESCRIPTION
* nvram definitions.
*
* Copyright 2004 IDT Inc. (rischelp@idt.com)
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
**************************************************************************
* May 2004 rkt, neb
*
* Initial Release
*
*
*
**************************************************************************
*/
#ifndef _NVRAM_
#define _NVRAM_
#define NVOFFSET 0 /* use all of NVRAM */
/* Offsets to reserved locations */
/* size description */
#define NVOFF_MAGIC (NVOFFSET + 0) /* 2 magic value */
#define NVOFF_CSUM (NVOFFSET + 2) /* 2 NVRAM environment checksum */
#define NVOFF_ENVSIZE (NVOFFSET + 4) /* 2 size of 'environment' */
#define NVOFF_TEST (NVOFFSET + 5) /* 1 cold start test byte */
#define NVOFF_ETHADDR (NVOFFSET + 6) /* 6 decoded ethernet address */
#define NVOFF_UNUSED (NVOFFSET + 12) /* 0 current end of table */
#define NV_MAGIC 0xdeaf /* nvram magic number */
#define NV_RESERVED 6 /* number of reserved bytes */
#undef NVOFF_ETHADDR
#define NVOFF_ETHADDR (NVOFFSET + NV_RESERVED - 6)
/* number of bytes available for environment */
#define ENV_BASE (NVOFFSET + NV_RESERVED)
#define ENV_TOP 0x2000
#define ENV_AVAIL (ENV_TOP - ENV_BASE)
#endif /* _NVRAM_ */
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