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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm/broadcom/bcm2835/bcm2835_bscreg.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2012 Oleksandr Tymoshenko <[email protected]>

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 * Copyright (c) 2013 Luiz Otavio O Souza <[email protected]>

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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 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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#ifndef	_BCM2835_BSCREG_H_

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#define	_BCM2835_BSCREG_H_

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#define	BCM_BSC_CORE_CLK	150000000U

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#define	BCM_BSC_CTRL		0x00

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#define	BCM_BSC_CTRL_I2CEN		(1 << 15)

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#define	BCM_BSC_CTRL_INTR		(1 << 10)

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#define	BCM_BSC_CTRL_INTT		(1 << 9)

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#define	BCM_BSC_CTRL_INTD		(1 << 8)

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#define	BCM_BSC_CTRL_ST			(1 << 7)

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#define	BCM_BSC_CTRL_CLEAR1		(1 << 5)

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#define	BCM_BSC_CTRL_CLEAR0		(1 << 4)

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#define	BCM_BSC_CTRL_READ		(1 << 0)

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#define	BCM_BSC_CTRL_INT_ALL \

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    (BCM_BSC_CTRL_INTR | BCM_BSC_CTRL_INTT | BCM_BSC_CTRL_INTD)

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#define	BCM_BSC_STATUS		0x04

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#define	BCM_BSC_STATUS_CLKT		(1 << 9)

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#define	BCM_BSC_STATUS_ERR		(1 << 8)

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#define	BCM_BSC_STATUS_RXF		(1 << 7)

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#define	BCM_BSC_STATUS_TXE		(1 << 6)

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#define	BCM_BSC_STATUS_RXD		(1 << 5)

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#define	BCM_BSC_STATUS_TXD		(1 << 4)

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#define	BCM_BSC_STATUS_RXR		(1 << 3)

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#define	BCM_BSC_STATUS_TXW		(1 << 2)

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#define	BCM_BSC_STATUS_DONE		(1 << 1)

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#define	BCM_BSC_STATUS_TA		(1 << 0)

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#define	BCM_BSC_STATUS_ERRBITS \

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    (BCM_BSC_STATUS_CLKT | BCM_BSC_STATUS_ERR)

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#define	BCM_BSC_DLEN		0x08

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#define	BCM_BSC_SLAVE		0x0c

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#define	BCM_BSC_DATA		0x10

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#define	BCM_BSC_CLOCK		0x14

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#define	BCM_BSC_DELAY		0x18

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#define	BCM_BSC_CLKT		0x1c

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#endif	/* _BCM2835_BSCREG_H_ */

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