2 * arch/arm/include/asm/hardware/pci_v3.h
4 * Internal header file PCI V3 chip
6 * Copyright (C) ARM Limited
7 * Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
9 * SPDX-License-Identifier: GPL-2.0+
11 #ifndef ASM_ARM_HARDWARE_PCI_V3_H
12 #define ASM_ARM_HARDWARE_PCI_V3_H
14 /* -------------------------------------------------------------------------------
15 * V3 Local Bus to PCI Bridge definitions
16 * -------------------------------------------------------------------------------
17 * Registers (these are taken from page 129 of the EPC User's Manual Rev 1.04
18 * All V3 register names are prefaced by V3_ to avoid clashing with any other
19 * PCI definitions. Their names match the user's manual.
21 * I'm assuming that I20 is disabled.
24 #define V3_PCI_VENDOR 0x00000000
25 #define V3_PCI_DEVICE 0x00000002
26 #define V3_PCI_CMD 0x00000004
27 #define V3_PCI_STAT 0x00000006
28 #define V3_PCI_CC_REV 0x00000008
29 #define V3_PCI_HDR_CFG 0x0000000C
30 #define V3_PCI_IO_BASE 0x00000010
31 #define V3_PCI_BASE0 0x00000014
32 #define V3_PCI_BASE1 0x00000018
33 #define V3_PCI_SUB_VENDOR 0x0000002C
34 #define V3_PCI_SUB_ID 0x0000002E
35 #define V3_PCI_ROM 0x00000030
36 #define V3_PCI_BPARAM 0x0000003C
37 #define V3_PCI_MAP0 0x00000040
38 #define V3_PCI_MAP1 0x00000044
39 #define V3_PCI_INT_STAT 0x00000048
40 #define V3_PCI_INT_CFG 0x0000004C
41 #define V3_LB_BASE0 0x00000054
42 #define V3_LB_BASE1 0x00000058
43 #define V3_LB_MAP0 0x0000005E
44 #define V3_LB_MAP1 0x00000062
45 #define V3_LB_BASE2 0x00000064
46 #define V3_LB_MAP2 0x00000066
47 #define V3_LB_SIZE 0x00000068
48 #define V3_LB_IO_BASE 0x0000006E
49 #define V3_FIFO_CFG 0x00000070
50 #define V3_FIFO_PRIORITY 0x00000072
51 #define V3_FIFO_STAT 0x00000074
52 #define V3_LB_ISTAT 0x00000076
53 #define V3_LB_IMASK 0x00000077
54 #define V3_SYSTEM 0x00000078
55 #define V3_LB_CFG 0x0000007A
56 #define V3_PCI_CFG 0x0000007C
57 #define V3_DMA_PCI_ADR0 0x00000080
58 #define V3_DMA_PCI_ADR1 0x00000090
59 #define V3_DMA_LOCAL_ADR0 0x00000084
60 #define V3_DMA_LOCAL_ADR1 0x00000094
61 #define V3_DMA_LENGTH0 0x00000088
62 #define V3_DMA_LENGTH1 0x00000098
63 #define V3_DMA_CSR0 0x0000008B
64 #define V3_DMA_CSR1 0x0000009B
65 #define V3_DMA_CTLB_ADR0 0x0000008C
66 #define V3_DMA_CTLB_ADR1 0x0000009C
67 #define V3_DMA_DELAY 0x000000E0
68 #define V3_MAIL_DATA 0x000000C0
69 #define V3_PCI_MAIL_IEWR 0x000000D0
70 #define V3_PCI_MAIL_IERD 0x000000D2
71 #define V3_LB_MAIL_IEWR 0x000000D4
72 #define V3_LB_MAIL_IERD 0x000000D6
73 #define V3_MAIL_WR_STAT 0x000000D8
74 #define V3_MAIL_RD_STAT 0x000000DA
75 #define V3_QBA_MAP 0x000000DC
77 /* PCI COMMAND REGISTER bits
79 #define V3_COMMAND_M_FBB_EN (1 << 9)
80 #define V3_COMMAND_M_SERR_EN (1 << 8)
81 #define V3_COMMAND_M_PAR_EN (1 << 6)
82 #define V3_COMMAND_M_MASTER_EN (1 << 2)
83 #define V3_COMMAND_M_MEM_EN (1 << 1)
84 #define V3_COMMAND_M_IO_EN (1 << 0)
86 /* SYSTEM REGISTER bits
88 #define V3_SYSTEM_M_RST_OUT (1 << 15)
89 #define V3_SYSTEM_M_LOCK (1 << 14)
93 #define V3_PCI_CFG_M_I2O_EN (1 << 15)
94 #define V3_PCI_CFG_M_IO_REG_DIS (1 << 14)
95 #define V3_PCI_CFG_M_IO_DIS (1 << 13)
96 #define V3_PCI_CFG_M_EN3V (1 << 12)
97 #define V3_PCI_CFG_M_RETRY_EN (1 << 10)
98 #define V3_PCI_CFG_M_AD_LOW1 (1 << 9)
99 #define V3_PCI_CFG_M_AD_LOW0 (1 << 8)
101 /* PCI_BASE register bits (PCI -> Local Bus)
103 #define V3_PCI_BASE_M_ADR_BASE 0xFFF00000
104 #define V3_PCI_BASE_M_ADR_BASEL 0x000FFF00
105 #define V3_PCI_BASE_M_PREFETCH (1 << 3)
106 #define V3_PCI_BASE_M_TYPE (3 << 1)
107 #define V3_PCI_BASE_M_IO (1 << 0)
109 /* PCI MAP register bits (PCI -> Local bus)
111 #define V3_PCI_MAP_M_MAP_ADR 0xFFF00000
112 #define V3_PCI_MAP_M_RD_POST_INH (1 << 15)
113 #define V3_PCI_MAP_M_ROM_SIZE (3 << 10)
114 #define V3_PCI_MAP_M_SWAP (3 << 8)
115 #define V3_PCI_MAP_M_ADR_SIZE 0x000000F0
116 #define V3_PCI_MAP_M_REG_EN (1 << 1)
117 #define V3_PCI_MAP_M_ENABLE (1 << 0)
119 #define V3_PCI_MAP_M_ADR_SIZE_1MB (0 << 4)
120 #define V3_PCI_MAP_M_ADR_SIZE_2MB (1 << 4)
121 #define V3_PCI_MAP_M_ADR_SIZE_4MB (2 << 4)
122 #define V3_PCI_MAP_M_ADR_SIZE_8MB (3 << 4)
123 #define V3_PCI_MAP_M_ADR_SIZE_16MB (4 << 4)
124 #define V3_PCI_MAP_M_ADR_SIZE_32MB (5 << 4)
125 #define V3_PCI_MAP_M_ADR_SIZE_64MB (6 << 4)
126 #define V3_PCI_MAP_M_ADR_SIZE_128MB (7 << 4)
127 #define V3_PCI_MAP_M_ADR_SIZE_256MB (8 << 4)
128 #define V3_PCI_MAP_M_ADR_SIZE_512MB (9 << 4)
129 #define V3_PCI_MAP_M_ADR_SIZE_1GB (10 << 4)
130 #define V3_PCI_MAP_M_ADR_SIZE_2GB (11 << 4)
133 * LB_BASE0,1 register bits (Local bus -> PCI)
135 #define V3_LB_BASE_ADR_BASE 0xfff00000
136 #define V3_LB_BASE_SWAP (3 << 8)
137 #define V3_LB_BASE_ADR_SIZE (15 << 4)
138 #define V3_LB_BASE_PREFETCH (1 << 3)
139 #define V3_LB_BASE_ENABLE (1 << 0)
141 #define V3_LB_BASE_ADR_SIZE_1MB (0 << 4)
142 #define V3_LB_BASE_ADR_SIZE_2MB (1 << 4)
143 #define V3_LB_BASE_ADR_SIZE_4MB (2 << 4)
144 #define V3_LB_BASE_ADR_SIZE_8MB (3 << 4)
145 #define V3_LB_BASE_ADR_SIZE_16MB (4 << 4)
146 #define V3_LB_BASE_ADR_SIZE_32MB (5 << 4)
147 #define V3_LB_BASE_ADR_SIZE_64MB (6 << 4)
148 #define V3_LB_BASE_ADR_SIZE_128MB (7 << 4)
149 #define V3_LB_BASE_ADR_SIZE_256MB (8 << 4)
150 #define V3_LB_BASE_ADR_SIZE_512MB (9 << 4)
151 #define V3_LB_BASE_ADR_SIZE_1GB (10 << 4)
152 #define V3_LB_BASE_ADR_SIZE_2GB (11 << 4)
154 #define v3_addr_to_lb_base(a) ((a) & V3_LB_BASE_ADR_BASE)
157 * LB_MAP0,1 register bits (Local bus -> PCI)
159 #define V3_LB_MAP_MAP_ADR 0xfff0
160 #define V3_LB_MAP_TYPE (7 << 1)
161 #define V3_LB_MAP_AD_LOW_EN (1 << 0)
163 #define V3_LB_MAP_TYPE_IACK (0 << 1)
164 #define V3_LB_MAP_TYPE_IO (1 << 1)
165 #define V3_LB_MAP_TYPE_MEM (3 << 1)
166 #define V3_LB_MAP_TYPE_CONFIG (5 << 1)
167 #define V3_LB_MAP_TYPE_MEM_MULTIPLE (6 << 1)
169 /* PCI MAP register bits (PCI -> Local bus) */
170 #define v3_addr_to_lb_map(a) (((a) >> 16) & V3_LB_MAP_MAP_ADR)
173 * LB_BASE2 register bits (Local bus -> PCI IO)
175 #define V3_LB_BASE2_ADR_BASE 0xff00
176 #define V3_LB_BASE2_SWAP (3 << 6)
177 #define V3_LB_BASE2_ENABLE (1 << 0)
179 #define v3_addr_to_lb_base2(a) (((a) >> 16) & V3_LB_BASE2_ADR_BASE)
182 * LB_MAP2 register bits (Local bus -> PCI IO)
184 #define V3_LB_MAP2_MAP_ADR 0xff00
186 #define v3_addr_to_lb_map2(a) (((a) >> 16) & V3_LB_MAP2_MAP_ADR)