diff options
Diffstat (limited to 'sys/mips/mediatek/mtk_spi_v1.h')
| -rw-r--r-- | sys/mips/mediatek/mtk_spi_v1.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sys/mips/mediatek/mtk_spi_v1.h b/sys/mips/mediatek/mtk_spi_v1.h new file mode 100644 index 0000000..3b82e5b --- /dev/null +++ b/sys/mips/mediatek/mtk_spi_v1.h @@ -0,0 +1,71 @@ +/*- + * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org> + * Copyright (c) 2011, Aleksandr Rybalko <ray@FreeBSD.org> + * Copyright (c) 2013, Alexander A. Mityaev <sansan@adm.ua> + * Copyright (c) 2016, Stanislav Galabov <sgalabov@gmail.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice unmodified, this list of conditions, and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +#ifndef _MTK_SPIVAR_H_ +#define _MTK_SPIVAR_H_ + +/* SPI controller interface */ + +#define MTK_SPISTAT 0x00 +/* SPIBUSY is alias for SPIBUSY, because SPISTAT have only BUSY bit*/ +#define MTK_SPIBUSY MTK_SPISTAT + +#define MTK_SPICFG 0x10 +#define MSBFIRST (1<<8) +#define SPICLKPOL (1<<6) +#define CAPT_ON_CLK_FALL (1<<5) +#define TX_ON_CLK_FALL (1<<4) +#define HIZSPI (1<<3) /* Set SPI pins to Tri-state */ +#define SPI_CLK_SHIFT 0 /* SPI clock divide control */ +#define SPI_CLK_MASK 0x00000007 +#define SPI_CLK_DIV2 0 +#define SPI_CLK_DIV4 1 +#define SPI_CLK_DIV8 2 +#define SPI_CLK_DIV16 3 +#define SPI_CLK_DIV32 4 +#define SPI_CLK_DIV64 5 +#define SPI_CLK_DIV128 6 +#define SPI_CLK_DISABLED 7 + +#define MTK_SPICTL 0x14 +#define HIZSMOSI (1<<3) +#define START_WRITE (1<<2) +#define START_READ (1<<1) +#define CS_HIGH (1<<0) + +#define MTK_SPIDATA 0x20 +#define SPIDATA_MASK 0x000000ff + +#define MTK_SPI_WRITE 1 +#define MTK_SPI_READ 0 + +#endif /* _MTK_SPIVAR_H_ */ |
