76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
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* Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
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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_SPIREG_H_
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#define _BCM2835_SPIREG_H_
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#define SPI_CORE_CLK 250000000U
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#define SPI_CS 0x00
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#define SPI_CS_LEN_LONG (1 << 25)
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#define SPI_CS_DMA_LEN (1 << 24)
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#define SPI_CS_CSPOL2 (1 << 23)
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#define SPI_CS_CSPOL1 (1 << 22)
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#define SPI_CS_CSPOL0 (1 << 21)
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#define SPI_CS_RXF (1 << 20)
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#define SPI_CS_RXR (1 << 19)
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#define SPI_CS_TXD (1 << 18)
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#define SPI_CS_RXD (1 << 17)
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#define SPI_CS_DONE (1 << 16)
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#define SPI_CS_LEN (1 << 13)
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#define SPI_CS_REN (1 << 12)
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#define SPI_CS_ADCS (1 << 11)
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#define SPI_CS_INTR (1 << 10)
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#define SPI_CS_INTD (1 << 9)
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#define SPI_CS_DMAEN (1 << 8)
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#define SPI_CS_TA (1 << 7)
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#define SPI_CS_CSPOL (1 << 6)
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#define SPI_CS_CLEAR_RXFIFO (1 << 5)
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#define SPI_CS_CLEAR_TXFIFO (1 << 4)
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#define SPI_CS_CPOL (1 << 3)
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#define SPI_CS_CPHA (1 << 2)
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#define SPI_CS_MASK 0x3
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#define SPI_FIFO 0x04
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#define SPI_CLK 0x08
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#define SPI_CLK_MASK 0xffff
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#define SPI_DLEN 0x0c
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#define SPI_DLEN_MASK 0xffff
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#define SPI_LTOH 0x10
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#define SPI_LTOH_MASK 0xf
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#define SPI_DC 0x14
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#define SPI_DC_RPANIC_SHIFT 24
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#define SPI_DC_RPANIC_MASK (0xff << SPI_DC_RPANIC_SHIFT)
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#define SPI_DC_RDREQ_SHIFT 16
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#define SPI_DC_RDREQ_MASK (0xff << SPI_DC_RDREQ_SHIFT)
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#define SPI_DC_TPANIC_SHIFT 8
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#define SPI_DC_TPANIC_MASK (0xff << SPI_DC_TPANIC_SHIFT)
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#define SPI_DC_TDREQ_SHIFT 0
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#define SPI_DC_TDREQ_MASK 0xff
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#endif /* _BCM2835_SPIREG_H_ */
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