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fc62b7e5de
instead of frobbing the registers directly. As a hack the bcm2835_pwm kmod presently ignores the 'status="disabled"' in the RPI3 DTB, assuming that if you load the kld you probably want the PWM to work.
44 lines
1.7 KiB
C
44 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) 2017 Poul-Henning Kamp <phk@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 _BCM2835_CLKMAN_H_
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#define _BCM2835_CLKMAN_H_
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// Offset into BAR0 for unit
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enum bcm2835_clksrc {
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BCM_GPIO0_CLKSRC = 0x70,
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BCM_GPIO1_CLKSRC = 0x78,
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BCM_GPIO2_CLKSRC = 0x80,
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BCM_PWM_CLKSRC = 0xa0,
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};
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uint32_t bcm2835_clkman_set_frequency(device_t, uint32_t, uint32_t);
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#endif /* _BCM2835_CLKMAN_H_ */
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