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pciide_apollo_reg.h revision 1.10 
      1 /*	$NetBSD: pciide_apollo_reg.h,v 1.10 2001/10/21 18:49:20 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998 Manuel Bouyer.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by the University of
     17  *	California, Berkeley and its contributors.
     18  * 4. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 /*
     36  * Registers definitions for VIA technologies's Apollo controllers (VT82V580VO,
     37  * VT82C586A and VT82C586B). Available from http://www.via.com.tw/ or
     38  * http://www.viatech.com/
     39  */
     40 
     41 /* misc. configuration registers */
     42 #define APO_IDECONF 0x40
     43 #define APO_IDECONF_EN(channel) (0x00000001 << (1 - (channel)))
     44 #define APO_IDECONF_SERR_EN	0x00000100 /* 580 only */
     45 #define APO_IDECONF_DS_SOURCE	0x00000200 /* 580 only */
     46 #define APO_IDECONF_ALT_INTR_EN	0x00000400 /* 580 only */
     47 #define APO_IDECONF_PERR_EN	0x00000800 /* 580 only */
     48 #define APO_IDECONF_WR_BUFF_EN(channel) (0x00001000 << ((1 - (channel)) << 1))
     49 #define APO_IDECONF_RD_PREF_EN(channel) (0x00002000 << ((1 - (channel)) << 1))
     50 #define APO_IDECONF_DEVSEL_TME	0x00010000 /* 580 only */
     51 #define APO_IDECONF_MAS_CMD_MON	0x00020000 /* 580 only */
     52 #define APO_IDECONF_IO_NAT(channel) \
     53 	(0x00400000 << (1 - (channel))) /* 580 only */
     54 #define APO_IDECONF_FIFO_TRSH(channel, x) \
     55 	((x) & 0x3) << ((1 - (channel)) << 1 + 24)
     56 #define APO_IDECONF_FIFO_CONF_MASK 0x60000000
     57 
     58 /* Misc. controls register */
     59 #define APO_CTLMISC 0x44
     60 #define APO_CTLMISC_BM_STS_RTY	0x00000008
     61 #define APO_CTLMISC_FIFO_HWS	0x00000010
     62 #define APO_CTLMISC_WR_IRDY_WS	0x00000020
     63 #define APO_CTLMISC_RD_IRDY_WS	0x00000040
     64 #define APO_CTLMISC_INTR_SWP	0x00004000
     65 #define APO_CTLMISC_DRDY_TIME_MASK 0x00030000
     66 #define APO_CTLMISC_FIFO_FLSH_RD(channel) (0x00100000 << (1 - (channel)))
     67 #define APO_CTLMISC_FIFO_FLSH_DMA(channel) (0x00400000 << (1 - (channel)))
     68 
     69 /* data port timings controls */
     70 #define APO_DATATIM 0x48
     71 #define APO_DATATIM_MASK(channel) (0xffff << ((1 - (channel)) << 4))
     72 #define APO_DATATIM_RECOV(channel, drive, x) (((x) & 0xf) << \
     73 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
     74 #define APO_DATATIM_PULSE(channel, drive, x) (((x) & 0xf) << \
     75 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3) + 4))
     76 
     77 /* misc timings control */
     78 #define APO_MISCTIM 0x4c
     79 
     80 /* Ultra-DMA/33 control (586A/B only) */
     81 #define APO_UDMA 0x50
     82 #define APO_UDMA_MASK(channel) (0xffff << ((1 - (channel)) << 4))
     83 #define APO_UDMA_TIME(channel, drive, x) (((x) & 0xf) << \
     84 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
     85 #define APO_UDMA_PIO_MODE(channel, drive) (0x20 << \
     86 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
     87 #define APO_UDMA_EN(channel, drive) (0x40 << \
     88 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
     89 #define APO_UDMA_EN_MTH(channel, drive) (0x80 << \
     90 	(((1 - (channel)) << 4) + ((1 - (drive)) << 3)))
     91 #define APO_UDMA_CLK66(channel) (0x08 << ((1 - (channel)) << 4))
     92 
     93 static const int8_t apollo_udma100_tim[] __attribute__((__unused__)) =
     94     /* XXX Check modes other than 2, 4, 5 */
     95     {0x0f, 0x07, 0x04, 0x02, 0x01, 0x00};
     96 static const int8_t apollo_udma66_tim[] __attribute__((__unused__)) =
     97     {0x03, 0x03, 0x02, 0x01, 0x00};
     98 static const int8_t apollo_udma33_tim[] __attribute__((__unused__)) =
     99     {0x03, 0x02, 0x00};
    100 static const int8_t apollo_pio_set[] __attribute__((__unused__)) =
    101     {0x0a, 0x0a, 0x0a, 0x02, 0x02};
    102 static const int8_t apollo_pio_rec[] __attribute__((__unused__)) =
    103     {0x08, 0x08, 0x08, 0x02, 0x00};
    104