powermac_nvramvar.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2006 Maxim Sobolev <sobomax@FreeBSD.org>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
   20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   25  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   26  * POSSIBILITY OF SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  */
   30 
   31 #ifndef _POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_
   32 #define _POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_
   33 
   34 #define NVRAM_SIZE              0x2000
   35 
   36 #define CORE99_SIGNATURE        0x5a
   37 
   38 #define SM_FLASH_CMD_ERASE_CONFIRM      0xd0
   39 #define SM_FLASH_CMD_ERASE_SETUP        0x20
   40 #define SM_FLASH_CMD_RESET              0xff
   41 #define SM_FLASH_CMD_WRITE_SETUP        0x40
   42 #define SM_FLASH_CMD_CLEAR_STATUS       0x50
   43 #define SM_FLASH_CMD_READ_STATUS        0x70
   44 
   45 #define SM_FLASH_STATUS_DONE    0x80
   46 #define SM_FLASH_STATUS_ERR     0x38
   47 
   48 #ifdef _KERNEL
   49 
   50 struct powermac_nvram_softc {
   51         device_t                sc_dev;
   52         struct sx               sc_lock;
   53         phandle_t               sc_node;
   54         void *                  sc_bank;
   55         void *                  sc_bank0;
   56         void *                  sc_bank1;
   57         uint8_t                 sc_data[NVRAM_SIZE];
   58 
   59         struct cdev *           sc_cdev;
   60         int                     sc_type;
   61 #define FLASH_TYPE_SM   0
   62 #define FLASH_TYPE_AMD  1
   63         int                     sc_isopen;
   64         int                     sc_rpos;
   65         int                     sc_wpos;
   66 };
   67 
   68 #endif /* _KERNEL */
   69 
   70 struct chrp_header {
   71         uint8_t                 signature;
   72         uint8_t                 chrp_checksum;
   73         uint16_t                length;
   74         char                    name[12];
   75 };
   76 
   77 struct core99_header {
   78         struct chrp_header      chrp_header;
   79         uint32_t                adler_checksum;
   80         uint32_t                generation;
   81         uint32_t                reserved[2];
   82 };
   83 
   84 #endif  /* _POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/powermac_nvram/powermac_nvramvar.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/powermac_nvram/powermac_nvramvar.h