960e65d23a
This is a very simple implementation of Qualcomm's SCM API. It is just the structure/field definitions and the atomic SCM call which doesn't use the structs yet - it uses the field definitions inside registers. I've tested that setting the cold boot address via the atomic API is fine - Linux does the same thing. But not all SCM calls can be done via the legacy API. This is a reimplementation based on the Linux qualcomm SCM legacy code and definitions. Tested: * Qualcomm IPQ4018 AP, as part of other changes for doing SMP bring-up Reviewed by: andrew, manu, imp Differential Revision: https://reviews.freebsd.org/D32723
42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2021 Adrian Chadd <adrian@FreeBSD.org>
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, 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 __QCOM_SCM_LEGACY_H__
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#define __QCOM_SCM_LEGACY_H__
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/*
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* These functions are specific to the 32 bit legacy SCM interface
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* used by the IPQ806x and IPQ401x SoCs.
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*/
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extern uint32_t qcom_scm_legacy_mp_set_cold_boot_address(
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vm_offset_t mp_entry_func);
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#endif /* __QCOM_SCM_LEGACY_H__ */
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