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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Common routines for the Motorola SPS MPC106/8240/107 Host bridge/Mem
3 * ctlr/EPIC/etc.
4 *
5 * Author: Mark A. Greer
6 * mgreer@mvista.com
7 *
8 * 2001 (c) MontaVista, Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 */
13#ifndef __PPC_KERNEL_MPC10X_H
14#define __PPC_KERNEL_MPC10X_H
15
16#include <linux/pci_ids.h>
17#include <asm/pci-bridge.h>
18
19/*
20 * The values here don't completely map everything but should work in most
21 * cases.
22 *
23 * MAP A (PReP Map)
24 * Processor: 0x80000000 - 0x807fffff -> PCI I/O: 0x00000000 - 0x007fffff
25 * Processor: 0xc0000000 - 0xdfffffff -> PCI MEM: 0x00000000 - 0x1fffffff
26 * PCI MEM: 0x80000000 -> Processor System Memory: 0x00000000
27 * EUMB mapped to: ioremap_base - 0x00100000 (ioremap_base - 1 MB)
28 *
29 * MAP B (CHRP Map)
30 * Processor: 0xfe000000 - 0xfebfffff -> PCI I/O: 0x00000000 - 0x00bfffff
31 * Processor: 0x80000000 - 0xbfffffff -> PCI MEM: 0x80000000 - 0xbfffffff
32 * PCI MEM: 0x00000000 -> Processor System Memory: 0x00000000
33 * EUMB mapped to: ioremap_base - 0x00100000 (ioremap_base - 1 MB)
34 */
35
36/*
37 * Define the vendor/device IDs for the various bridges--should be added to
38 * <linux/pci_ids.h>
39 */
40#define MPC10X_BRIDGE_106 ((PCI_DEVICE_ID_MOTOROLA_MPC106 << 16) | \
41 PCI_VENDOR_ID_MOTOROLA)
42#define MPC10X_BRIDGE_8240 ((0x0003 << 16) | PCI_VENDOR_ID_MOTOROLA)
43#define MPC10X_BRIDGE_107 ((0x0004 << 16) | PCI_VENDOR_ID_MOTOROLA)
44#define MPC10X_BRIDGE_8245 ((0x0006 << 16) | PCI_VENDOR_ID_MOTOROLA)
45
46/* Define the type of map to use */
47#define MPC10X_MEM_MAP_A 1
48#define MPC10X_MEM_MAP_B 2
49
50/* Map A (PReP Map) Defines */
51#define MPC10X_MAPA_CNFG_ADDR 0x80000cf8
52#define MPC10X_MAPA_CNFG_DATA 0x80000cfc
53
54#define MPC10X_MAPA_ISA_IO_BASE 0x80000000
55#define MPC10X_MAPA_ISA_MEM_BASE 0xc0000000
56#define MPC10X_MAPA_DRAM_OFFSET 0x80000000
57
58#define MPC10X_MAPA_PCI_INTACK_ADDR 0xbffffff0
59#define MPC10X_MAPA_PCI_IO_START 0x00000000
60#define MPC10X_MAPA_PCI_IO_END (0x00800000 - 1)
61#define MPC10X_MAPA_PCI_MEM_START 0x00000000
62#define MPC10X_MAPA_PCI_MEM_END (0x20000000 - 1)
63
64#define MPC10X_MAPA_PCI_MEM_OFFSET (MPC10X_MAPA_ISA_MEM_BASE - \
65 MPC10X_MAPA_PCI_MEM_START)
66
67/* Map B (CHRP Map) Defines */
68#define MPC10X_MAPB_CNFG_ADDR 0xfec00000
69#define MPC10X_MAPB_CNFG_DATA 0xfee00000
70
71#define MPC10X_MAPB_ISA_IO_BASE 0xfe000000
72#define MPC10X_MAPB_ISA_MEM_BASE 0x80000000
73#define MPC10X_MAPB_DRAM_OFFSET 0x00000000
74
75#define MPC10X_MAPB_PCI_INTACK_ADDR 0xfef00000
76#define MPC10X_MAPB_PCI_IO_START 0x00000000
77#define MPC10X_MAPB_PCI_IO_END (0x00c00000 - 1)
78#define MPC10X_MAPB_PCI_MEM_START 0x80000000
79#define MPC10X_MAPB_PCI_MEM_END (0xc0000000 - 1)
80
81#define MPC10X_MAPB_PCI_MEM_OFFSET (MPC10X_MAPB_ISA_MEM_BASE - \
82 MPC10X_MAPB_PCI_MEM_START)
83
84/* Set hose members to values appropriate for the mem map used */
85#define MPC10X_SETUP_HOSE(hose, map) { \
86 (hose)->pci_mem_offset = MPC10X_MAP##map##_PCI_MEM_OFFSET; \
87 (hose)->io_space.start = MPC10X_MAP##map##_PCI_IO_START; \
88 (hose)->io_space.end = MPC10X_MAP##map##_PCI_IO_END; \
89 (hose)->mem_space.start = MPC10X_MAP##map##_PCI_MEM_START; \
90 (hose)->mem_space.end = MPC10X_MAP##map##_PCI_MEM_END; \
91 (hose)->io_base_virt = (void *)MPC10X_MAP##map##_ISA_IO_BASE; \
92}
93
94
95/* Miscellaneous Configuration register offsets */
96#define MPC10X_CFG_PIR_REG 0x09
97#define MPC10X_CFG_PIR_HOST_BRIDGE 0x00
98#define MPC10X_CFG_PIR_AGENT 0x01
99
100#define MPC10X_CFG_EUMBBAR 0x78
101
102#define MPC10X_CFG_PICR1_REG 0xa8
103#define MPC10X_CFG_PICR1_ADDR_MAP_MASK 0x00010000
104#define MPC10X_CFG_PICR1_ADDR_MAP_A 0x00010000
105#define MPC10X_CFG_PICR1_ADDR_MAP_B 0x00000000
106#define MPC10X_CFG_PICR1_SPEC_PCI_RD 0x00000004
107#define MPC10X_CFG_PICR1_ST_GATH_EN 0x00000040
108
109#define MPC10X_CFG_PICR2_REG 0xac
110#define MPC10X_CFG_PICR2_COPYBACK_OPT 0x00000001
111
112#define MPC10X_CFG_MAPB_OPTIONS_REG 0xe0
113#define MPC10X_CFG_MAPB_OPTIONS_CFAE 0x80 /* CPU_FD_ALIAS_EN */
114#define MPC10X_CFG_MAPB_OPTIONS_PFAE 0x40 /* PCI_FD_ALIAS_EN */
115#define MPC10X_CFG_MAPB_OPTIONS_DR 0x20 /* DLL_RESET */
116#define MPC10X_CFG_MAPB_OPTIONS_PCICH 0x08 /* PCI_COMPATIBILITY_HOLE */
117#define MPC10X_CFG_MAPB_OPTIONS_PROCCH 0x04 /* PROC_COMPATIBILITY_HOLE */
118
119/* Define offsets for the memory controller registers in the config space */
120#define MPC10X_MCTLR_MEM_START_1 0x80 /* Banks 0-3 */
121#define MPC10X_MCTLR_MEM_START_2 0x84 /* Banks 4-7 */
122#define MPC10X_MCTLR_EXT_MEM_START_1 0x88 /* Banks 0-3 */
123#define MPC10X_MCTLR_EXT_MEM_START_2 0x8c /* Banks 4-7 */
124
125#define MPC10X_MCTLR_MEM_END_1 0x90 /* Banks 0-3 */
126#define MPC10X_MCTLR_MEM_END_2 0x94 /* Banks 4-7 */
127#define MPC10X_MCTLR_EXT_MEM_END_1 0x98 /* Banks 0-3 */
128#define MPC10X_MCTLR_EXT_MEM_END_2 0x9c /* Banks 4-7 */
129
130#define MPC10X_MCTLR_MEM_BANK_ENABLES 0xa0
131
132/* Define some offset in the EUMB */
133#define MPC10X_EUMB_SIZE 0x00100000 /* Total EUMB size (1MB) */
134
135#define MPC10X_EUMB_MU_OFFSET 0x00000000 /* Msg Unit reg offset */
136#define MPC10X_EUMB_MU_SIZE 0x00001000 /* Msg Unit reg size */
137#define MPC10X_EUMB_DMA_OFFSET 0x00001000 /* DMA Unit reg offset */
138#define MPC10X_EUMB_DMA_SIZE 0x00001000 /* DMA Unit reg size */
139#define MPC10X_EUMB_ATU_OFFSET 0x00002000 /* Addr xlate reg offset */
140#define MPC10X_EUMB_ATU_SIZE 0x00001000 /* Addr xlate reg size */
141#define MPC10X_EUMB_I2C_OFFSET 0x00003000 /* I2C Unit reg offset */
142#define MPC10X_EUMB_I2C_SIZE 0x00001000 /* I2C Unit reg size */
143#define MPC10X_EUMB_DUART_OFFSET 0x00004000 /* DUART Unit reg offset (8245) */
144#define MPC10X_EUMB_DUART_SIZE 0x00001000 /* DUART Unit reg size (8245) */
145#define MPC10X_EUMB_EPIC_OFFSET 0x00040000 /* EPIC offset in EUMB */
146#define MPC10X_EUMB_EPIC_SIZE 0x00030000 /* EPIC size */
147#define MPC10X_EUMB_PM_OFFSET 0x000fe000 /* Performance Monitor reg offset (8245) */
148#define MPC10X_EUMB_PM_SIZE 0x00001000 /* Performance Monitor reg size (8245) */
149#define MPC10X_EUMB_WP_OFFSET 0x000ff000 /* Data path diagnostic, watchpoint reg offset */
150#define MPC10X_EUMB_WP_SIZE 0x00001000 /* Data path diagnostic, watchpoint reg size */
151
152/*
153 * Define some recommended places to put the EUMB regs.
154 * For both maps, recommend putting the EUMB from 0xeff00000 to 0xefffffff.
155 */
156extern unsigned long ioremap_base;
157#define MPC10X_MAPA_EUMB_BASE (ioremap_base - MPC10X_EUMB_SIZE)
158#define MPC10X_MAPB_EUMB_BASE MPC10X_MAPA_EUMB_BASE
159
Kumar Galab264c352005-06-21 17:15:21 -0700160enum ppc_sys_devices {
161 MPC10X_IIC1,
162 MPC10X_DMA0,
163 MPC10X_DMA1,
Kumar Gala13e886c2005-07-27 11:44:07 -0700164 MPC10X_UART0,
165 MPC10X_UART1,
Vitaly Bordug75288c72006-01-20 22:22:34 +0300166 NUM_PPC_SYS_DEVS,
Kumar Galab264c352005-06-21 17:15:21 -0700167};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
169int mpc10x_bridge_init(struct pci_controller *hose,
170 uint current_map,
171 uint new_map,
172 uint phys_eumb_base);
173unsigned long mpc10x_get_mem_size(uint mem_map);
174int mpc10x_enable_store_gathering(struct pci_controller *hose);
175int mpc10x_disable_store_gathering(struct pci_controller *hose);
176
177/* For MPC107 boards that use the built-in openpic */
178void mpc10x_set_openpic(void);
179
180#endif /* __PPC_KERNEL_MPC10X_H */