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1/*
2 * include/asm-ppc/gt64260.h
3 *
4 * Prototypes, etc. for the Marvell/Galileo GT64260 host bridge routines.
5 *
6 * Author: Mark A. Greer <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 __ASMPPC_GT64260_H
14#define __ASMPPC_GT64260_H
15
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/pci.h>
19#include <linux/slab.h>
20
21#include <asm/byteorder.h>
22#include <asm/io.h>
23#include <asm/irq.h>
24#include <asm/uaccess.h>
25#include <asm/machdep.h>
26#include <asm/pci-bridge.h>
27#include <asm/gt64260_defs.h>
28
29
30extern u32 gt64260_base;
31extern u32 gt64260_irq_base; /* We handle the next 96 IRQs from here */
32extern u32 gt64260_revision;
33extern u8 gt64260_pci_exclude_bridge;
34
35#ifndef TRUE
36#define TRUE 1
37#endif
38
39#ifndef FALSE
40#define FALSE 0
41#endif
42
43/* IRQs defined by the 64260 */
44#define GT64260_IRQ_MPSC0 40
45#define GT64260_IRQ_MPSC1 42
46#define GT64260_IRQ_SDMA 36
47
48/*
49 * Define a default physical memory map to be set up on the bridge.
50 * Also define a struct to pass that info from board-specific routines to
51 * GT64260 generic set up routines. By passing this info in, the board
52 * support developer can modify it at will.
53 */
54
55/*
56 * This is the default memory map:
57 * CPU PCI
58 * --- ---
59 * PCI 0 I/O: 0xfa000000-0xfaffffff 0x00000000-0x00ffffff
60 * PCI 1 I/O: 0xfb000000-0xfbffffff 0x01000000-0x01ffffff
61 * PCI 0 MEM: 0x80000000-0x8fffffff 0x80000000-0x8fffffff
62 * PCI 1 MEM: 0x90000000-0x9fffffff 0x90000000-0x9fffffff
63 */
64
65/* Default physical memory map for the GT64260 bridge */
66
67/*
68 * PCI Bus 0 Definitions
69 */
70#define GT64260_PCI_0_IO_SIZE 0x01000000U
71#define GT64260_PCI_0_MEM_SIZE 0x10000000U
72
73/* Processor Physical addresses */
74#define GT64260_PCI_0_IO_START_PROC 0xfa000000U
75#define GT64260_PCI_0_IO_END_PROC (GT64260_PCI_0_IO_START_PROC + \
76 GT64260_PCI_0_IO_SIZE - 1)
77
78/* PCI 0 addresses */
79#define GT64260_PCI_0_IO_START 0x00000000U
80#define GT64260_PCI_0_IO_END (GT64260_PCI_0_IO_START + \
81 GT64260_PCI_0_IO_SIZE - 1)
82
83/* Processor Physical addresses */
84#define GT64260_PCI_0_MEM_START_PROC 0x80000000U
85#define GT64260_PCI_0_MEM_END_PROC (GT64260_PCI_0_MEM_START_PROC + \
86 GT64260_PCI_0_MEM_SIZE - 1)
87
88/* PCI 0 addresses */
89#define GT64260_PCI_0_MEM_START 0x80000000U
90#define GT64260_PCI_0_MEM_END (GT64260_PCI_0_MEM_START + \
91 GT64260_PCI_0_MEM_SIZE - 1)
92
93/*
94 * PCI Bus 1 Definitions
95 */
96#define GT64260_PCI_1_IO_SIZE 0x01000000U
97#define GT64260_PCI_1_MEM_SIZE 0x10000000U
98
99/* PCI 1 addresses */
100#define GT64260_PCI_1_IO_START 0x01000000U
101#define GT64260_PCI_1_IO_END (GT64260_PCI_1_IO_START + \
102 GT64260_PCI_1_IO_SIZE - 1)
103
104/* Processor Physical addresses */
105#define GT64260_PCI_1_IO_START_PROC 0xfb000000U
106#define GT64260_PCI_1_IO_END_PROC (GT64260_PCI_1_IO_START_PROC + \
107 GT64260_PCI_1_IO_SIZE - 1)
108
109/* PCI 1 addresses */
110#define GT64260_PCI_1_MEM_START 0x90000000U
111#define GT64260_PCI_1_MEM_END (GT64260_PCI_1_MEM_START + \
112 GT64260_PCI_1_MEM_SIZE - 1)
113
114/* Processor Physical addresses */
115#define GT64260_PCI_1_MEM_START_PROC 0x90000000U
116#define GT64260_PCI_1_MEM_END_PROC (GT64260_PCI_1_MEM_START_PROC + \
117 GT64260_PCI_1_MEM_SIZE - 1)
118
119/* Define struct to pass mem-map info into gt64260_common.c code */
120typedef struct {
121 struct pci_controller *hose_a;
122 struct pci_controller *hose_b;
123
124 u32 mem_size;
125
126 u32 pci_0_io_start_proc;
127 u32 pci_0_io_start_pci;
128 u32 pci_0_io_size;
129 u32 pci_0_io_swap;
130
131 u32 pci_0_mem_start_proc;
132 u32 pci_0_mem_start_pci_hi;
133 u32 pci_0_mem_start_pci_lo;
134 u32 pci_0_mem_size;
135 u32 pci_0_mem_swap;
136
137 u32 pci_1_io_start_proc;
138 u32 pci_1_io_start_pci;
139 u32 pci_1_io_size;
140 u32 pci_1_io_swap;
141
142 u32 pci_1_mem_start_proc;
143 u32 pci_1_mem_start_pci_hi;
144 u32 pci_1_mem_start_pci_lo;
145 u32 pci_1_mem_size;
146 u32 pci_1_mem_swap;
147} gt64260_bridge_info_t;
148
149#define GT64260_BRIDGE_INFO_DEFAULT(ip, ms) { \
150 (ip)->mem_size = (ms); \
151 \
152 (ip)->pci_0_io_start_proc = GT64260_PCI_0_IO_START_PROC; \
153 (ip)->pci_0_io_start_pci = GT64260_PCI_0_IO_START; \
154 (ip)->pci_0_io_size = GT64260_PCI_0_IO_SIZE; \
155 (ip)->pci_0_io_swap = GT64260_CPU_PCI_SWAP_NONE; \
156 \
157 (ip)->pci_0_mem_start_proc = GT64260_PCI_0_MEM_START_PROC; \
158 (ip)->pci_0_mem_start_pci_hi = 0x00000000; \
159 (ip)->pci_0_mem_start_pci_lo = GT64260_PCI_0_MEM_START; \
160 (ip)->pci_0_mem_size = GT64260_PCI_0_MEM_SIZE; \
161 (ip)->pci_0_mem_swap = GT64260_CPU_PCI_SWAP_NONE; \
162 \
163 (ip)->pci_1_io_start_proc = GT64260_PCI_1_IO_START_PROC; \
164 (ip)->pci_1_io_start_pci = GT64260_PCI_1_IO_START; \
165 (ip)->pci_1_io_size = GT64260_PCI_1_IO_SIZE; \
166 (ip)->pci_1_io_swap = GT64260_CPU_PCI_SWAP_NONE; \
167 \
168 (ip)->pci_1_mem_start_proc = GT64260_PCI_1_MEM_START_PROC; \
169 (ip)->pci_1_mem_start_pci_hi = 0x00000000; \
170 (ip)->pci_1_mem_start_pci_lo = GT64260_PCI_1_MEM_START; \
171 (ip)->pci_1_mem_size = GT64260_PCI_1_MEM_SIZE; \
172 (ip)->pci_1_mem_swap = GT64260_CPU_PCI_SWAP_NONE; \
173}
174
175/*
176 *****************************************************************************
177 *
178 * I/O macros to access the 64260's registers
179 *
180 *****************************************************************************
181 */
182
183extern inline uint32_t gt_read(uint32_t offs){
184 return (in_le32((volatile uint *)(gt64260_base + offs)));
185}
186extern inline void gt_write(uint32_t offs, uint32_t d){
187 out_le32((volatile uint *)(gt64260_base + offs), d);
188}
189
190#if 0 /* paranoid SMP version */
191extern inline void gt_modify(u32 offs, u32 data, u32 mask) \
192{
193 uint32_t reg;
194 spin_lock(>64260_lock);
195 reg = gt_read(offs) & (~mask); /* zero any bits we care about*/
196 reg |= data & mask; /* set bits from the data */
197 gt_write(offs, reg);
198 spin_unlock(>64260_lock);
199}
200#else
201extern inline void gt_modify(uint32_t offs, uint32_t data, uint32_t mask)
202{
203 uint32_t reg;
204 reg = gt_read(offs) & (~(mask)); /* zero any bits we care about*/
205 reg |= (data) & (mask); /* set bits from the data */
206 gt_write(offs, reg);
207}
208#endif
209#define gt_set_bits(offs, bits) gt_modify(offs, ~0, bits)
210
211#define gt_clr_bits(offs, bits) gt_modify(offs, 0, bits)
212
213
214/*
215 *****************************************************************************
216 *
217 * Function Prototypes
218 *
219 *****************************************************************************
220 */
221
222int gt64260_find_bridges(u32 phys_base_addr, gt64260_bridge_info_t *info,
223 int ((*map_irq)(struct pci_dev *, unsigned char, unsigned char)));
224int gt64260_bridge_init(gt64260_bridge_info_t *info);
225int gt64260_cpu_scs_set_window(u32 window,
226 u32 base_addr,
227 u32 size);
228int gt64260_cpu_cs_set_window(u32 window,
229 u32 base_addr,
230 u32 size);
231int gt64260_cpu_boot_set_window(u32 base_addr,
232 u32 size);
233int gt64260_cpu_set_pci_io_window(u32 pci_bus,
234 u32 cpu_base_addr,
235 u32 pci_base_addr,
236 u32 size,
237 u32 swap);
238int gt64260_cpu_set_pci_mem_window(u32 pci_bus,
239 u32 window,
240 u32 cpu_base_addr,
241 u32 pci_base_addr_hi,
242 u32 pci_base_addr_lo,
243 u32 size,
244 u32 swap_64bit);
245int gt64260_cpu_prot_set_window(u32 window,
246 u32 base_addr,
247 u32 size,
248 u32 access_bits);
249int gt64260_cpu_snoop_set_window(u32 window,
250 u32 base_addr,
251 u32 size,
252 u32 snoop_type);
253void gt64260_cpu_disable_all_windows(void);
254int gt64260_pci_bar_enable(u32 pci_bus, u32 enable_bits);
255int gt64260_pci_slave_scs_set_window(struct pci_controller *hose,
256 u32 window,
257 u32 pci_base_addr,
258 u32 cpu_base_addr,
259 u32 size);
260int gt64260_pci_slave_cs_set_window(struct pci_controller *hose,
261 u32 window,
262 u32 pci_base_addr,
263 u32 cpu_base_addr,
264 u32 size);
265int gt64260_pci_slave_boot_set_window(struct pci_controller *hose,
266 u32 pci_base_addr,
267 u32 cpu_base_addr,
268 u32 size);
269int gt64260_pci_slave_p2p_mem_set_window(struct pci_controller *hose,
270 u32 window,
271 u32 pci_base_addr,
272 u32 other_bus_base_addr,
273 u32 size);
274int gt64260_pci_slave_p2p_io_set_window(struct pci_controller *hose,
275 u32 pci_base_addr,
276 u32 other_bus_base_addr,
277 u32 size);
278int gt64260_pci_slave_dac_scs_set_window(struct pci_controller *hose,
279 u32 window,
280 u32 pci_base_addr_hi,
281 u32 pci_base_addr_lo,
282 u32 cpu_base_addr,
283 u32 size);
284int gt64260_pci_slave_dac_cs_set_window(struct pci_controller *hose,
285 u32 window,
286 u32 pci_base_addr_hi,
287 u32 pci_base_addr_lo,
288 u32 cpu_base_addr,
289 u32 size);
290int gt64260_pci_slave_dac_boot_set_window(struct pci_controller *hose,
291 u32 pci_base_addr_hi,
292 u32 pci_base_addr_lo,
293 u32 cpu_base_addr,
294 u32 size);
295int gt64260_pci_slave_dac_p2p_mem_set_window(struct pci_controller *hose,
296 u32 window,
297 u32 pci_base_addr_hi,
298 u32 pci_base_addr_lo,
299 u32 other_bus_base_addr,
300 u32 size);
301int gt64260_pci_acc_cntl_set_window(u32 pci_bus,
302 u32 window,
303 u32 base_addr_hi,
304 u32 base_addr_lo,
305 u32 size,
306 u32 features);
307int gt64260_pci_snoop_set_window(u32 pci_bus,
308 u32 window,
309 u32 base_addr_hi,
310 u32 base_addr_lo,
311 u32 size,
312 u32 snoop_type);
313int gt64260_set_base(u32 new_base);
314int gt64260_get_base(u32 *base);
315int gt64260_pci_exclude_device(u8 bus, u8 devfn);
316
317void gt64260_init_irq(void);
318int gt64260_get_irq(void);
319
320void gt64260_mpsc_progress(char *s, unsigned short hex);
321
322#endif /* __ASMPPC_GT64260_H */