1/*
2 * include/asm-ppc/m8260_pci.h
3 *
4 * Definitions for the MPC8250/MPC8265/MPC8266 integrated PCI host bridge.
5 *
6 * This program is free software; you can redistribute  it and/or modify it
7 * under  the terms of  the GNU General  Public License as published by the
8 * Free Software Foundation;  either version 2 of the  License, or (at your
9 * option) any later version.
10 */
11
12#ifdef __KERNEL__
13#ifndef __M8260_PCI_H
14#define __M8260_PCI_H
15
16#include <linux/pci_ids.h>
17
18/*
19 * Define the vendor/device ID for the MPC8265.
20 */
21#define	PCI_DEVICE_ID_MPC8265	((0x18C0 << 16) | PCI_VENDOR_ID_MOTOROLA)
22#define	PCI_DEVICE_ID_MPC8272	((0x18C1 << 16) | PCI_VENDOR_ID_MOTOROLA)
23
24#define M8265_PCIBR0	0x101ac
25#define M8265_PCIBR1	0x101b0
26#define M8265_PCIMSK0	0x101c4
27#define M8265_PCIMSK1	0x101c8
28
29/* Bit definitions for PCIBR registers */
30
31#define PCIBR_ENABLE        0x00000001
32
33/* Bit definitions for PCIMSK registers */
34
35#define PCIMSK_32KiB         0xFFFF8000  /* Size of window, smallest */
36#define PCIMSK_64KiB         0xFFFF0000
37#define PCIMSK_128KiB        0xFFFE0000
38#define PCIMSK_256KiB        0xFFFC0000
39#define PCIMSK_512KiB        0xFFF80000
40#define PCIMSK_1MiB          0xFFF00000
41#define PCIMSK_2MiB          0xFFE00000
42#define PCIMSK_4MiB          0xFFC00000
43#define PCIMSK_8MiB          0xFF800000
44#define PCIMSK_16MiB         0xFF000000
45#define PCIMSK_32MiB         0xFE000000
46#define PCIMSK_64MiB         0xFC000000
47#define PCIMSK_128MiB        0xF8000000
48#define PCIMSK_256MiB        0xF0000000
49#define PCIMSK_512MiB        0xE0000000
50#define PCIMSK_1GiB          0xC0000000  /* Size of window, largest */
51
52
53#define M826X_SCCR_PCI_MODE_EN 0x100
54
55
56/*
57 * Outbound ATU registers (3 sets). These registers control how 60x bus (local)
58 * addresses are translated to PCI addresses when the MPC826x is a PCI bus
59 * master (initiator).
60 */
61
62#define POTAR_REG0          0x10800     /* PCI Outbound Translation Addr registers */
63#define POTAR_REG1          0x10818
64#define POTAR_REG2          0x10830
65
66#define POBAR_REG0          0x10808     /* PCI Outbound Base Addr registers */
67#define POBAR_REG1          0x10820
68#define POBAR_REG2          0x10838
69
70#define POCMR_REG0          0x10810     /* PCI Outbound Comparison Mask registers */
71#define POCMR_REG1          0x10828
72#define POCMR_REG2          0x10840
73
74/* Bit definitions for POMCR registers */
75
76#define POCMR_MASK_4KiB      0x000FFFFF
77#define POCMR_MASK_8KiB      0x000FFFFE
78#define POCMR_MASK_16KiB     0x000FFFFC
79#define POCMR_MASK_32KiB     0x000FFFF8
80#define POCMR_MASK_64KiB     0x000FFFF0
81#define POCMR_MASK_128KiB    0x000FFFE0
82#define POCMR_MASK_256KiB    0x000FFFC0
83#define POCMR_MASK_512KiB    0x000FFF80
84#define POCMR_MASK_1MiB      0x000FFF00
85#define POCMR_MASK_2MiB      0x000FFE00
86#define POCMR_MASK_4MiB      0x000FFC00
87#define POCMR_MASK_8MiB      0x000FF800
88#define POCMR_MASK_16MiB     0x000FF000
89#define POCMR_MASK_32MiB     0x000FE000
90#define POCMR_MASK_64MiB     0x000FC000
91#define POCMR_MASK_128MiB    0x000F8000
92#define POCMR_MASK_256MiB    0x000F0000
93#define POCMR_MASK_512MiB    0x000E0000
94#define POCMR_MASK_1GiB      0x000C0000
95
96#define POCMR_ENABLE        0x80000000
97#define POCMR_PCI_IO        0x40000000
98#define POCMR_PREFETCH_EN   0x20000000
99
100/* Soft PCI reset */
101
102#define PCI_GCR_REG         0x10880
103
104/* Bit definitions for PCI_GCR registers */
105
106#define PCIGCR_PCI_BUS_EN   0x1
107
108#define PCI_EMR_REG	    0x10888
109/*
110 * Inbound ATU registers (2 sets). These registers control how PCI addresses
111 * are translated to 60x bus (local) addresses when the MPC826x is a PCI bus target.
112 */
113
114#define PITAR_REG1          0x108D0
115#define PIBAR_REG1          0x108D8
116#define PICMR_REG1          0x108E0
117#define PITAR_REG0          0x108E8
118#define PIBAR_REG0          0x108F0
119#define PICMR_REG0          0x108F8
120
121/* Bit definitions for PCI Inbound Comparison Mask registers */
122
123#define PICMR_MASK_4KiB       0x000FFFFF
124#define PICMR_MASK_8KiB       0x000FFFFE
125#define PICMR_MASK_16KiB      0x000FFFFC
126#define PICMR_MASK_32KiB      0x000FFFF8
127#define PICMR_MASK_64KiB      0x000FFFF0
128#define PICMR_MASK_128KiB     0x000FFFE0
129#define PICMR_MASK_256KiB     0x000FFFC0
130#define PICMR_MASK_512KiB     0x000FFF80
131#define PICMR_MASK_1MiB       0x000FFF00
132#define PICMR_MASK_2MiB       0x000FFE00
133#define PICMR_MASK_4MiB       0x000FFC00
134#define PICMR_MASK_8MiB       0x000FF800
135#define PICMR_MASK_16MiB      0x000FF000
136#define PICMR_MASK_32MiB      0x000FE000
137#define PICMR_MASK_64MiB      0x000FC000
138#define PICMR_MASK_128MiB     0x000F8000
139#define PICMR_MASK_256MiB     0x000F0000
140#define PICMR_MASK_512MiB     0x000E0000
141#define PICMR_MASK_1GiB       0x000C0000
142
143#define PICMR_ENABLE         0x80000000
144#define PICMR_NO_SNOOP_EN    0x40000000
145#define PICMR_PREFETCH_EN    0x20000000
146
147/* PCI error Registers */
148
149#define	PCI_ERROR_STATUS_REG		0x10884
150#define	PCI_ERROR_MASK_REG		0x10888
151#define	PCI_ERROR_CONTROL_REG		0x1088C
152#define PCI_ERROR_ADRS_CAPTURE_REG      0x10890
153#define PCI_ERROR_DATA_CAPTURE_REG      0x10898
154#define PCI_ERROR_CTRL_CAPTURE_REG      0x108A0
155
156/* PCI error Register bit defines */
157
158#define	PCI_ERROR_PCI_ADDR_PAR			0x00000001
159#define	PCI_ERROR_PCI_DATA_PAR_WR		0x00000002
160#define	PCI_ERROR_PCI_DATA_PAR_RD		0x00000004
161#define	PCI_ERROR_PCI_NO_RSP			0x00000008
162#define	PCI_ERROR_PCI_TAR_ABT			0x00000010
163#define	PCI_ERROR_PCI_SERR			0x00000020
164#define	PCI_ERROR_PCI_PERR_RD			0x00000040
165#define	PCI_ERROR_PCI_PERR_WR			0x00000080
166#define	PCI_ERROR_I2O_OFQO			0x00000100
167#define	PCI_ERROR_I2O_IPQO			0x00000200
168#define	PCI_ERROR_IRA				0x00000400
169#define	PCI_ERROR_NMI				0x00000800
170#define	PCI_ERROR_I2O_DBMC			0x00001000
171
172/*
173 * Register pair used to generate configuration cycles on the PCI bus
174 * and access the MPC826x's own PCI configuration registers.
175 */
176
177#define PCI_CFG_ADDR_REG     0x10900
178#define PCI_CFG_DATA_REG     0x10904
179
180/* Bus parking decides where the bus control sits when idle */
181/* If modifying memory controllers for PCI park on the core */
182
183#define PPC_ACR_BUS_PARK_CORE 0x6
184#define PPC_ACR_BUS_PARK_PCI  0x3
185
186#endif /* __M8260_PCI_H */
187#endif /* __KERNEL__ */
188