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97eb836f8b
Rework aw_sid so it can work with the nvmem interface. Each SoC expose a set of fuses (for now rootkey/boardid and, if available, the thermal calibration data). A fuse can be private or public, reading private fuse needs to be done via some registers instead of reading directly. Each fuse is exposed as a sysctl. For now leave the possibility for a driver to read any fuse without using the nvmem interface as the awg and emac driver use this to generate a mac address.
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/*-
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* Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __AW_SID_H__
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#define __AW_SID_H__
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enum aw_sid_fuse_id {
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AW_SID_FUSE_ROOTKEY = 1,
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AW_SID_FUSE_THSSENSOR,
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};
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int aw_sid_read_tscalib(uint32_t *, uint32_t *);
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int aw_sid_get_fuse(enum aw_sid_fuse_id id, uint8_t *out, uint32_t *size);
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#endif /* !__AW_SID_H__ */
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