mtk_spi_v1.h revision 297671
1/*- 2 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org> 3 * Copyright (c) 2011, Aleksandr Rybalko <ray@FreeBSD.org> 4 * Copyright (c) 2013, Alexander A. Mityaev <sansan@adm.ua> 5 * Copyright (c) 2016, Stanislav Galabov <sgalabov@gmail.com> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD: head/sys/mips/mediatek/mtk_spi_v1.h 297671 2016-04-07 11:21:42Z sgalabov $ 31 */ 32 33#ifndef _MTK_SPIVAR_H_ 34#define _MTK_SPIVAR_H_ 35 36/* SPI controller interface */ 37 38#define MTK_SPISTAT 0x00 39/* SPIBUSY is alias for SPIBUSY, because SPISTAT have only BUSY bit*/ 40#define MTK_SPIBUSY MTK_SPISTAT 41 42#define MTK_SPICFG 0x10 43#define MSBFIRST (1<<8) 44#define SPICLKPOL (1<<6) 45#define CAPT_ON_CLK_FALL (1<<5) 46#define TX_ON_CLK_FALL (1<<4) 47#define HIZSPI (1<<3) /* Set SPI pins to Tri-state */ 48#define SPI_CLK_SHIFT 0 /* SPI clock divide control */ 49#define SPI_CLK_MASK 0x00000007 50#define SPI_CLK_DIV2 0 51#define SPI_CLK_DIV4 1 52#define SPI_CLK_DIV8 2 53#define SPI_CLK_DIV16 3 54#define SPI_CLK_DIV32 4 55#define SPI_CLK_DIV64 5 56#define SPI_CLK_DIV128 6 57#define SPI_CLK_DISABLED 7 58 59#define MTK_SPICTL 0x14 60#define HIZSMOSI (1<<3) 61#define START_WRITE (1<<2) 62#define START_READ (1<<1) 63#define CS_HIGH (1<<0) 64 65#define MTK_SPIDATA 0x20 66#define SPIDATA_MASK 0x000000ff 67 68#define MTK_SPI_WRITE 1 69#define MTK_SPI_READ 0 70 71#endif /* _MTK_SPIVAR_H_ */ 72