d11f81afd5
The Qualcomm TCSR is some top level glue between multiple IP blocks, both for doing configuration of said IP blocks, some IPC between them (mostly between multiple execution environments - eg trustzone and non-TZ), and interrupt status bits for them. However, for the IPQ4018/IPQ4019, it only is used as a small subset of IP block configuration. As for what it actually gets used as for other Qualcomm chipsets? Well, that'll have to wait. It's a bit of a mess in linux and openwrt. See, every different SoC support branch ends up with some different TCSR code for it. So instead, I'm going to land a single TCSR driver that I'm going to use for the IPQ4018/IPQ4019. When I add the next chipset, I'll figure out how to organise things so there's a single TCSR driver that works for multiple platforms.
47 lines
1.8 KiB
C
47 lines
1.8 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_TCSR_VAR_H__
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#define __QCOM_TCSR_VAR_H__
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#define QCOM_TCSR_READ_4(sc, reg) bus_read_4((sc)->sc_mem_res, (reg))
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#define QCOM_TCSR_WRITE_4(sc, reg, val) bus_write_4((sc)->sc_mem_res, \
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(reg), (val))
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struct qcom_tcsr_softc {
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device_t sc_dev;
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struct resource *sc_mem_res;
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uint32_t hw_version;
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struct mtx sc_mtx;
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};
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#endif /* __QCOM_TCSR_VAR_H__ */
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