File: /usr/src/linux/include/asm-arm/hardware/pci_v3.h
1 /*
2 * linux/include/asm-arm/hardware/pci_v3.h
3 *
4 * Internal header file PCI V3 chip
5 *
6 * Copyright (C) ARM Limited
7 * Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23 #ifndef ASM_ARM_HARDWARE_PCI_V3_H
24 #define ASM_ARM_HARDWARE_PCI_V3_H
25
26 /* -------------------------------------------------------------------------------
27 * V3 Local Bus to PCI Bridge definitions
28 * -------------------------------------------------------------------------------
29 * Registers (these are taken from page 129 of the EPC User's Manual Rev 1.04
30 * All V3 register names are prefaced by V3_ to avoid clashing with any other
31 * PCI definitions. Their names match the user's manual.
32 *
33 * I'm assuming that I20 is disabled.
34 *
35 */
36 #define V3_PCI_VENDOR 0x00000000
37 #define V3_PCI_DEVICE 0x00000002
38 #define V3_PCI_CMD 0x00000004
39 #define V3_PCI_STAT 0x00000006
40 #define V3_PCI_CC_REV 0x00000008
41 #define V3_PCI_HDR_CFG 0x0000000C
42 #define V3_PCI_IO_BASE 0x00000010
43 #define V3_PCI_BASE0 0x00000014
44 #define V3_PCI_BASE1 0x00000018
45 #define V3_PCI_SUB_VENDOR 0x0000002C
46 #define V3_PCI_SUB_ID 0x0000002E
47 #define V3_PCI_ROM 0x00000030
48 #define V3_PCI_BPARAM 0x0000003C
49 #define V3_PCI_MAP0 0x00000040
50 #define V3_PCI_MAP1 0x00000044
51 #define V3_PCI_INT_STAT 0x00000048
52 #define V3_PCI_INT_CFG 0x0000004C
53 #define V3_LB_BASE0 0x00000054
54 #define V3_LB_BASE1 0x00000058
55 #define V3_LB_MAP0 0x0000005E
56 #define V3_LB_MAP1 0x00000062
57 #define V3_LB_BASE2 0x00000064
58 #define V3_LB_MAP2 0x00000066
59 #define V3_LB_SIZE 0x00000068
60 #define V3_LB_IO_BASE 0x0000006E
61 #define V3_FIFO_CFG 0x00000070
62 #define V3_FIFO_PRIORITY 0x00000072
63 #define V3_FIFO_STAT 0x00000074
64 #define V3_LB_ISTAT 0x00000076
65 #define V3_LB_IMASK 0x00000077
66 #define V3_SYSTEM 0x00000078
67 #define V3_LB_CFG 0x0000007A
68 #define V3_PCI_CFG 0x0000007C
69 #define V3_DMA_PCI_ADR0 0x00000080
70 #define V3_DMA_PCI_ADR1 0x00000090
71 #define V3_DMA_LOCAL_ADR0 0x00000084
72 #define V3_DMA_LOCAL_ADR1 0x00000094
73 #define V3_DMA_LENGTH0 0x00000088
74 #define V3_DMA_LENGTH1 0x00000098
75 #define V3_DMA_CSR0 0x0000008B
76 #define V3_DMA_CSR1 0x0000009B
77 #define V3_DMA_CTLB_ADR0 0x0000008C
78 #define V3_DMA_CTLB_ADR1 0x0000009C
79 #define V3_DMA_DELAY 0x000000E0
80 #define V3_MAIL_DATA 0x000000C0
81 #define V3_PCI_MAIL_IEWR 0x000000D0
82 #define V3_PCI_MAIL_IERD 0x000000D2
83 #define V3_LB_MAIL_IEWR 0x000000D4
84 #define V3_LB_MAIL_IERD 0x000000D6
85 #define V3_MAIL_WR_STAT 0x000000D8
86 #define V3_MAIL_RD_STAT 0x000000DA
87 #define V3_QBA_MAP 0x000000DC
88
89 /* PCI COMMAND REGISTER bits
90 */
91 #define V3_COMMAND_M_FBB_EN (1 << 9)
92 #define V3_COMMAND_M_SERR_EN (1 << 8)
93 #define V3_COMMAND_M_PAR_EN (1 << 6)
94 #define V3_COMMAND_M_MASTER_EN (1 << 2)
95 #define V3_COMMAND_M_MEM_EN (1 << 1)
96 #define V3_COMMAND_M_IO_EN (1 << 0)
97
98 /* SYSTEM REGISTER bits
99 */
100 #define V3_SYSTEM_M_RST_OUT (1 << 15)
101 #define V3_SYSTEM_M_LOCK (1 << 14)
102
103 /* PCI_CFG bits
104 */
105 #define V3_PCI_CFG_M_RETRY_EN (1 << 10)
106 #define V3_PCI_CFG_M_AD_LOW1 (1 << 9)
107 #define V3_PCI_CFG_M_AD_LOW0 (1 << 8)
108
109 /* PCI_BASE register bits (PCI -> Local Bus)
110 */
111 #define V3_PCI_BASE_M_ADR_BASE 0xFFF00000
112 #define V3_PCI_BASE_M_ADR_BASEL 0x000FFF00
113 #define V3_PCI_BASE_M_PREFETCH (1 << 3)
114 #define V3_PCI_BASE_M_TYPE (3 << 1)
115 #define V3_PCI_BASE_M_IO (1 << 0)
116
117 /* PCI MAP register bits (PCI -> Local bus)
118 */
119 #define V3_PCI_MAP_M_MAP_ADR 0xFFF00000
120 #define V3_PCI_MAP_M_RD_POST_INH (1 << 15)
121 #define V3_PCI_MAP_M_ROM_SIZE (3 << 10)
122 #define V3_PCI_MAP_M_SWAP (3 << 8)
123 #define V3_PCI_MAP_M_ADR_SIZE 0x000000F0
124 #define V3_PCI_MAP_M_REG_EN (1 << 1)
125 #define V3_PCI_MAP_M_ENABLE (1 << 0)
126
127 /*
128 * LB_BASE0,1 register bits (Local bus -> PCI)
129 */
130 #define V3_LB_BASE_ADR_BASE 0xfff00000
131 #define V3_LB_BASE_SWAP (3 << 8)
132 #define V3_LB_BASE_ADR_SIZE (15 << 4)
133 #define V3_LB_BASE_PREFETCH (1 << 3)
134 #define V3_LB_BASE_ENABLE (1 << 0)
135
136 #define V3_LB_BASE_ADR_SIZE_1MB (0 << 4)
137 #define V3_LB_BASE_ADR_SIZE_2MB (1 << 4)
138 #define V3_LB_BASE_ADR_SIZE_4MB (2 << 4)
139 #define V3_LB_BASE_ADR_SIZE_8MB (3 << 4)
140 #define V3_LB_BASE_ADR_SIZE_16MB (4 << 4)
141 #define V3_LB_BASE_ADR_SIZE_32MB (5 << 4)
142 #define V3_LB_BASE_ADR_SIZE_64MB (6 << 4)
143 #define V3_LB_BASE_ADR_SIZE_128MB (7 << 4)
144 #define V3_LB_BASE_ADR_SIZE_256MB (8 << 4)
145 #define V3_LB_BASE_ADR_SIZE_512MB (9 << 4)
146 #define V3_LB_BASE_ADR_SIZE_1GB (10 << 4)
147 #define V3_LB_BASE_ADR_SIZE_2GB (11 << 4)
148
149 #define v3_addr_to_lb_base(a) ((a) & V3_LB_BASE_ADR_BASE)
150
151 /*
152 * LB_MAP0,1 register bits (Local bus -> PCI)
153 */
154 #define V3_LB_MAP_MAP_ADR 0xfff0
155 #define V3_LB_MAP_TYPE (7 << 1)
156 #define V3_LB_MAP_AD_LOW_EN (1 << 0)
157
158 #define V3_LB_MAP_TYPE_IACK (0 << 1)
159 #define V3_LB_MAP_TYPE_IO (1 << 1)
160 #define V3_LB_MAP_TYPE_MEM (3 << 1)
161 #define V3_LB_MAP_TYPE_CONFIG (5 << 1)
162 #define V3_LB_MAP_TYPE_MEM_MULTIPLE (6 << 1)
163
164 #define v3_addr_to_lb_map(a) (((a) >> 16) & V3_LB_MAP_MAP_ADR)
165
166 /*
167 * LB_BASE2 register bits (Local bus -> PCI IO)
168 */
169 #define V3_LB_BASE2_ADR_BASE 0xff00
170 #define V3_LB_BASE2_SWAP (3 << 6)
171 #define V3_LB_BASE2_ENABLE (1 << 0)
172
173 #define v3_addr_to_lb_base2(a) (((a) >> 16) & V3_LB_BASE2_ADR_BASE)
174
175 /*
176 * LB_MAP2 register bits (Local bus -> PCI IO)
177 */
178 #define V3_LB_MAP2_MAP_ADR 0xff00
179
180 #define v3_addr_to_lb_map2(a) (((a) >> 16) & V3_LB_MAP2_MAP_ADR)
181
182 #endif
183