1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/* $OpenBSD: lsi64854reg.h,v 1.4 2008/06/26 05:42:15 ray Exp $ */
/* $NetBSD: lsi64854reg.h,v 1.5 2001/03/29 02:58:39 petrov Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Kranenburg.
*
* 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, 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* LSI 64854 DMA engine. Contains three independent channels
* designed to interface with (a) a NCR539X SCSI controller,
* (b) a AM7990 Ethernet controller, (c) Parallel port hardware..
*/
/*
* Register offsets to bus handle.
*/
#define L64854_REG_CSR 0 /* Control bits */
#define L64854_REG_ADDR 4 /* DMA Address */
#define L64854_REG_CNT 8 /* DMA count */
#define L64854_REG_CNT_MASK 0x00ffffff /* only 24 bits */
#define L64854_REG_ENBAR 12 /* ENET Base register */
#define L64854_REG_TEST 12 /* SCSI Test register */
#define L64854_REG_HCR 16 /* PP Hardware Configuration */
#define L64854_REG_OCR 18 /* PP Operation Configuration */
#define L64854_REG_DR 20 /* PP Data register */
#define L64854_REG_TCR 21 /* PP Transfer Control */
#define L64854_REG_OR 22 /* PP Output register */
#define L64854_REG_IR 23 /* PP Input register */
#define L64854_REG_ICR 24 /* PP Interrupt Control */
/*
* Control bits common to all three channels.
*/
#define L64854_INT_PEND 0x00000001 /* Interrupt pending */
#define L64854_ERR_PEND 0x00000002 /* Error pending */
#define L64854_DRAINING 0x0000000c /* FIFO draining */
#define L64854_INT_EN 0x00000010 /* Interrupt enable */
#define L64854_INVALIDATE 0x00000020 /* Invalidate FIFO */
#define L64854_SLAVE_ERR 0x00000040 /* Slave access size error */
#define L64854_RESET 0x00000080 /* Reset device */
#define L64854_WRITE 0x00000100 /* 1: xfer to memory */
#define L64854_EN_DMA 0x00000200 /* enable DMA transfers */
#define L64854_BURST_SIZE 0x000c0000 /* Read/write burst size */
#define L64854_BURST_0 0x00080000 /* no bursts (SCSI-only) */
#define L64854_BURST_16 0x00000000 /* 16-byte bursts */
#define L64854_BURST_32 0x00040000 /* 32-byte bursts */
#define L64854_BURST_64 0x000c0000 /* 64-byte bursts (fas) */
#define L64854_RST_FAS366 0x08000000 /* FAS366 hardware reset */
#define L64854_DEVID 0xf0000000 /* device ID bits */
/*
* SCSI DMA control bits.
*/
#define D_INT_PEND L64854_INT_PEND /* interrupt pending */
#define D_ERR_PEND L64854_ERR_PEND /* error pending */
#define D_DRAINING L64854_DRAINING /* fifo draining */
#define D_INT_EN L64854_INT_EN /* interrupt enable */
#define D_INVALIDATE L64854_INVALIDATE/* invalidate fifo */
#define D_SLAVE_ERR L64854_SLAVE_ERR/* slave access size error */
#define D_RESET L64854_RESET /* reset scsi */
#define D_WRITE L64854_WRITE /* 1 = dev -> mem */
#define D_EN_DMA L64854_EN_DMA /* enable DMA requests */
#define D_EN_CNT 0x00002000 /* enable byte counter */
#define D_TC 0x00004000 /* terminal count */
#define D_WIDE_EN 0x00008000 /* enable wide mode SBUS DMA (fas) */
#define D_DSBL_CSR_DRN 0x00010000 /* disable fifo drain on csr */
#define D_DSBL_SCSI_DRN 0x00020000 /* disable fifo drain on reg */
#define D_DIAG 0x00100000 /* disable fifo drain on addr */
#define D_TWO_CYCLE 0x00200000 /* 2 clocks per transfer */
#define D_FASTER 0x00400000 /* 3 clocks per transfer */
#define D_TCI_DIS 0x00800000 /* disable intr on D_TC */
#define D_EN_NEXT 0x01000000 /* enable auto next address */
#define D_DMA_ON 0x02000000 /* enable dma from scsi XXX */
#define D_DSBL_PARITY_CHK \
0x02000000 /* disable checking for parity on bus (default 1:fas) */
#define D_A_LOADED 0x04000000 /* address loaded */
#define D_NA_LOADED 0x08000000 /* next address loaded */
#define D_HW_RESET_FAS366 \
0x08000000 /* hardware reset FAS366 (fas) */
#define D_DEV_ID L64854_DEVID /* device ID */
#define DMAREV_0 0x00000000 /* Sunray DMA */
#define DMAREV_ESC 0x40000000 /* DMA ESC array */
#define DMAREV_1 0x80000000 /* 'DMA' */
#define DMAREV_PLUS 0x90000000 /* 'DMA+' */
#define DMAREV_2 0xa0000000 /* 'DMA2' */
#define DMAREV_HME 0xb0000000 /* 'HME' */
/*
* revisions 0,1 and ESC have different bits.
*/
#define D_ESC_DRAIN 0x00000040 /* rev0,1,esc: drain fifo */
#define D_ESC_R_PEND 0x00000400 /* rev0,1: request pending */
#define D_ESC_BURST 0x00000800 /* DMA ESC: 16 byte bursts */
#define D_ESC_AUTODRAIN 0x00040000 /* DMA ESC: Auto-drain */
#define DDMACSR_BITS "\020" \
"\01INT\02ERR\03DR1\04DR2\05IEN" \
"\07SLVERR\010RST\011WRITE\012ENDMA" \
"\016ENCNT\017TC\021DSBL_CSR_DRN" \
"\022DSBL_SCSI_DRN\026TWOCYCLE" \
"\027FASTER\030TCIDIS\031ENNXT\032DMAON" \
"\033ALOADED\034NALOADED"
/*
* ENET DMA control bits.
*/
#define E_INT_PEND L64854_INT_PEND /* interrupt pending */
#define E_ERR_PEND L64854_ERR_PEND /* error pending */
#define E_DRAINING L64854_DRAINING /* fifo draining */
#define E_INT_EN L64854_INT_EN /* interrupt enable */
#define E_INVALIDATE L64854_INVALIDATE/* invalidate fifo */
#define E_SLAVE_ERR L64854_SLAVE_ERR/* slave access size error */
#define E_RESET L64854_RESET /* reset ENET */
#define E_reserved1 0x00000300 /* */
#define E_DRAIN 0x00000400 /* force Ecache drain */
#define E_DSBL_WR_DRN 0x00000800 /* disable Ecache drain on .. */
#define E_DSBL_RD_DRN 0x00001000 /* disable Ecache drain on .. */
#define E_reserved2 0x00006000 /* */
#define E_ILACC 0x00008000 /* ... */
#define E_DSBL_BUF_WR 0x00010000 /* no buffering of slave writes */
#define E_DSBL_WR_INVAL 0x00020000 /* no Ecache invalidate on slave writes */
#define E_reserved3 0x00100000 /* */
#define E_LOOP_TEST 0x00200000 /* loopback mode */
#define E_TP_AUI 0x00400000 /* 1 for TP, 0 for AUI */
#define E_reserved4 0x0c800000 /* */
#define E_DEV_ID L64854_DEVID /* ID bits */
#define EDMACSR_BITS "\020" \
"\01INT\02ERR\05IEN" \
"\07SLVERR\010RST\011WRITE\013DRAIN" \
"\014DSBL_WR_DRN\015DSBL_RD_DRN\020ILACC" \
"\021DSBL_BUF_WR\022DSBL_WR_INVAL" \
"\026LOOPTEST\027TP"
/*
* PP DMA control bits.
*/
#define P_INT_PEND L64854_INT_PEND /* interrupt pending */
#define P_ERR_PEND L64854_ERR_PEND /* error pending */
#define P_DRAINING L64854_DRAINING /* fifo draining */
#define P_INT_EN L64854_INT_EN /* interrupt enable */
#define P_INVALIDATE L64854_INVALIDATE/* invalidate fifo */
#define P_SLAVE_ERR L64854_SLAVE_ERR/* slave access size error */
#define P_RESET L64854_RESET /* reset PP */
#define P_WRITE L64854_WRITE /* 1: xfer to memory */
#define P_EN_DMA L64854_EN_DMA /* enable DMA transfers */
#define P_reserved1 0x00001c00 /* */
#define P_EN_CNT 0x00002000 /* enable counter */
#define P_TC 0x00004000 /* terminal count */
#define P_reserved2 0x00038000 /* */
#define P_DIAG 0x00100000 /* ... */
#define P_reserved3 0x00600000 /* */
#define P_TCI_DIS 0x00800000 /* no interrupt on terminal count */
#define P_EN_NEXT 0x01000000 /* enable DMA chaining */
#define P_DMA_ON 0x02000000 /* DMA xfers enabled */
#define P_A_LOADED 0x04000000 /* addr and byte count valid */
#define P_NA_LOADED 0x08000000 /* next addr & count valid but not used */
#define P_DEV_ID L64854_DEVID /* ID bits */
#define PDMACSR_BITS "\020" \
"\01INT\02ERR\05IEN" \
"\07SLVERR\010RST\011WRITE\012ENDMA" \
"\016ENCNT\017TC\025DIAG\030TCIDIS" \
"\031ENNXT\032DMAON\033ALOADED\034NALOADED"
|
