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1/*
2 * arch/arm/include/asm/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_I2O_EN (1 << 15)
106#define V3_PCI_CFG_M_IO_REG_DIS (1 << 14)
107#define V3_PCI_CFG_M_IO_DIS (1 << 13)
108#define V3_PCI_CFG_M_EN3V (1 << 12)
109#define V3_PCI_CFG_M_RETRY_EN (1 << 10)
110#define V3_PCI_CFG_M_AD_LOW1 (1 << 9)
111#define V3_PCI_CFG_M_AD_LOW0 (1 << 8)
112
113/* PCI_BASE register bits (PCI -> Local Bus)
114 */
115#define V3_PCI_BASE_M_ADR_BASE 0xFFF00000
116#define V3_PCI_BASE_M_ADR_BASEL 0x000FFF00
117#define V3_PCI_BASE_M_PREFETCH (1 << 3)
118#define V3_PCI_BASE_M_TYPE (3 << 1)
119#define V3_PCI_BASE_M_IO (1 << 0)
120
121/* PCI MAP register bits (PCI -> Local bus)
122 */
123#define V3_PCI_MAP_M_MAP_ADR 0xFFF00000
124#define V3_PCI_MAP_M_RD_POST_INH (1 << 15)
125#define V3_PCI_MAP_M_ROM_SIZE (3 << 10)
126#define V3_PCI_MAP_M_SWAP (3 << 8)
127#define V3_PCI_MAP_M_ADR_SIZE 0x000000F0
128#define V3_PCI_MAP_M_REG_EN (1 << 1)
129#define V3_PCI_MAP_M_ENABLE (1 << 0)
130
131/*
132 * LB_BASE0,1 register bits (Local bus -> PCI)
133 */
134#define V3_LB_BASE_ADR_BASE 0xfff00000
135#define V3_LB_BASE_SWAP (3 << 8)
136#define V3_LB_BASE_ADR_SIZE (15 << 4)
137#define V3_LB_BASE_PREFETCH (1 << 3)
138#define V3_LB_BASE_ENABLE (1 << 0)
139
140#define V3_LB_BASE_ADR_SIZE_1MB (0 << 4)
141#define V3_LB_BASE_ADR_SIZE_2MB (1 << 4)
142#define V3_LB_BASE_ADR_SIZE_4MB (2 << 4)
143#define V3_LB_BASE_ADR_SIZE_8MB (3 << 4)
144#define V3_LB_BASE_ADR_SIZE_16MB (4 << 4)
145#define V3_LB_BASE_ADR_SIZE_32MB (5 << 4)
146#define V3_LB_BASE_ADR_SIZE_64MB (6 << 4)
147#define V3_LB_BASE_ADR_SIZE_128MB (7 << 4)
148#define V3_LB_BASE_ADR_SIZE_256MB (8 << 4)
149#define V3_LB_BASE_ADR_SIZE_512MB (9 << 4)
150#define V3_LB_BASE_ADR_SIZE_1GB (10 << 4)
151#define V3_LB_BASE_ADR_SIZE_2GB (11 << 4)
152
153#define v3_addr_to_lb_base(a) ((a) & V3_LB_BASE_ADR_BASE)
154
155/*
156 * LB_MAP0,1 register bits (Local bus -> PCI)
157 */
158#define V3_LB_MAP_MAP_ADR 0xfff0
159#define V3_LB_MAP_TYPE (7 << 1)
160#define V3_LB_MAP_AD_LOW_EN (1 << 0)
161
162#define V3_LB_MAP_TYPE_IACK (0 << 1)
163#define V3_LB_MAP_TYPE_IO (1 << 1)
164#define V3_LB_MAP_TYPE_MEM (3 << 1)
165#define V3_LB_MAP_TYPE_CONFIG (5 << 1)
166#define V3_LB_MAP_TYPE_MEM_MULTIPLE (6 << 1)
167
168#define v3_addr_to_lb_map(a) (((a) >> 16) & V3_LB_MAP_MAP_ADR)
169
170/*
171 * LB_BASE2 register bits (Local bus -> PCI IO)
172 */
173#define V3_LB_BASE2_ADR_BASE 0xff00
174#define V3_LB_BASE2_SWAP (3 << 6)
175#define V3_LB_BASE2_ENABLE (1 << 0)
176
177#define v3_addr_to_lb_base2(a) (((a) >> 16) & V3_LB_BASE2_ADR_BASE)
178
179/*
180 * LB_MAP2 register bits (Local bus -> PCI IO)
181 */
182#define V3_LB_MAP2_MAP_ADR 0xff00
183
184#define v3_addr_to_lb_map2(a) (((a) >> 16) & V3_LB_MAP2_MAP_ADR)
185
186#endif