1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1991-1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SYS_EEPROM_H 28 #define _SYS_EEPROM_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * The EEPROM is part of the Mostek MK48T02 clock chip. The EEPROM 38 * is 2K, but the last 8 bytes are used as the clock, and the 32 bytes 39 * before that emulate the ID prom. There is no 40 * recovery time necessary after writes to the chip. 41 */ 42 #ifndef _ASM 43 #include <sys/types.h> 44 struct ee_soft { 45 ushort_t ees_wrcnt[3]; /* write count (3 copies) */ 46 ushort_t ees_nu1; /* not used */ 47 uchar_t ees_chksum[3]; /* software area checksum (3 copies) */ 48 uchar_t ees_nu2; /* not used */ 49 uchar_t ees_resv[0xd8-0xc]; /* XXX - figure this out sometime */ 50 }; 51 52 extern caddr_t v_eeprom_addr; 53 #define EEPROM ((struct eeprom *)v_eeprom_addr) 54 #define IDPROM_ADDR (v_eeprom_addr+EEPROM_SIZE) /* virt addr of idprom */ 55 #endif /* !_ASM */ 56 57 #define EEPROM_SIZE 0x1fd8 /* size of eeprom in bytes */ 58 59 /* 60 * ID prom constants. They are included here because the ID prom is 61 * emulated by stealing 20 bytes of the eeprom. 62 */ 63 #define IDPROMSIZE 0x20 /* size of ID prom, in bytes */ 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif /* _SYS_EEPROM_H */ 70