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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1991-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _SYS_EEPROM_H
#define _SYS_EEPROM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* The EEPROM is part of the Mostek MK48T02 clock chip. The EEPROM
* is 2K, but the last 8 bytes are used as the clock, and the 32 bytes
* before that emulate the ID prom. There is no
* recovery time necessary after writes to the chip.
*/
#ifndef _ASM
#include <sys/types.h>
struct ee_soft {
ushort_t ees_wrcnt[3]; /* write count (3 copies) */
ushort_t ees_nu1; /* not used */
uchar_t ees_chksum[3]; /* software area checksum (3 copies) */
uchar_t ees_nu2; /* not used */
uchar_t ees_resv[0xd8-0xc]; /* XXX - figure this out sometime */
};
extern caddr_t v_eeprom_addr;
#define EEPROM ((struct eeprom *)v_eeprom_addr)
#define IDPROM_ADDR (v_eeprom_addr+EEPROM_SIZE) /* virt addr of idprom */
#endif /* !_ASM */
#define EEPROM_SIZE 0x1fd8 /* size of eeprom in bytes */
/*
* ID prom constants. They are included here because the ID prom is
* emulated by stealing 20 bytes of the eeprom.
*/
#define IDPROMSIZE 0x20 /* size of ID prom, in bytes */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_EEPROM_H */
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