b84feebf2cefdf9e523c36d516db08409f8cc832
[linux-2.6.git] / include / asm-mips / pci / bridge.h
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * bridge.h - bridge chip header file, derived from IRIX <sys/PCI/bridge.h>,
7  * revision 1.76.
8  *
9  * Copyright (C) 1996, 1999 Silcon Graphics, Inc.
10  * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
11  */
12 #ifndef _ASM_PCI_BRIDGE_H
13 #define _ASM_PCI_BRIDGE_H
14
15 #include <linux/types.h>
16 #include <linux/pci.h>
17 #include <asm/xtalk/xwidget.h>          /* generic widget header */
18 #include <asm/sn/types.h>
19
20 /* I/O page size */
21
22 #define IOPFNSHIFT              12      /* 4K per mapped page */
23
24 #define IOPGSIZE                (1 << IOPFNSHIFT)
25 #define IOPG(x)                 ((x) >> IOPFNSHIFT)
26 #define IOPGOFF(x)              ((x) & (IOPGSIZE-1))
27
28 /* Bridge RAM sizes */
29
30 #define BRIDGE_ATE_RAM_SIZE     0x00000400      /* 1kB ATE RAM */
31
32 #define BRIDGE_CONFIG_BASE      0x20000
33 #define BRIDGE_CONFIG1_BASE     0x28000
34 #define BRIDGE_CONFIG_END       0x30000
35 #define BRIDGE_CONFIG_SLOT_SIZE 0x1000
36
37 #define BRIDGE_SSRAM_512K       0x00080000      /* 512kB */
38 #define BRIDGE_SSRAM_128K       0x00020000      /* 128kB */
39 #define BRIDGE_SSRAM_64K        0x00010000      /* 64kB */
40 #define BRIDGE_SSRAM_0K         0x00000000      /* 0kB */
41
42 /* ========================================================================
43  *    Bridge address map
44  */
45
46 #ifndef __ASSEMBLY__
47
48 /*
49  * All accesses to bridge hardware registers must be done
50  * using 32-bit loads and stores.
51  */
52 typedef u32     bridgereg_t;
53
54 typedef u64     bridge_ate_t;
55
56 /* pointers to bridge ATEs
57  * are always "pointer to volatile"
58  */
59 typedef volatile bridge_ate_t  *bridge_ate_p;
60
61 /*
62  * It is generally preferred that hardware registers on the bridge
63  * are located from C code via this structure.
64  *
65  * Generated from Bridge spec dated 04oct95
66  */
67
68 typedef volatile struct bridge_s {
69         /* Local Registers                             0x000000-0x00FFFF */
70
71         /* standard widget configuration               0x000000-0x000057 */
72         widget_cfg_t        b_widget;                   /* 0x000000 */
73
74         /* helper fieldnames for accessing bridge widget */
75
76 #define b_wid_id                        b_widget.w_id
77 #define b_wid_stat                      b_widget.w_status
78 #define b_wid_err_upper                 b_widget.w_err_upper_addr
79 #define b_wid_err_lower                 b_widget.w_err_lower_addr
80 #define b_wid_control                   b_widget.w_control
81 #define b_wid_req_timeout               b_widget.w_req_timeout
82 #define b_wid_int_upper                 b_widget.w_intdest_upper_addr
83 #define b_wid_int_lower                 b_widget.w_intdest_lower_addr
84 #define b_wid_err_cmdword               b_widget.w_err_cmd_word
85 #define b_wid_llp                       b_widget.w_llp_cfg
86 #define b_wid_tflush                    b_widget.w_tflush
87
88         /* bridge-specific widget configuration 0x000058-0x00007F */
89         bridgereg_t         _pad_000058;
90         bridgereg_t         b_wid_aux_err;              /* 0x00005C */
91         bridgereg_t         _pad_000060;
92         bridgereg_t         b_wid_resp_upper;           /* 0x000064 */
93         bridgereg_t         _pad_000068;
94         bridgereg_t         b_wid_resp_lower;           /* 0x00006C */
95         bridgereg_t         _pad_000070;
96         bridgereg_t         b_wid_tst_pin_ctrl;         /* 0x000074 */
97         bridgereg_t     _pad_000078[2];
98
99         /* PMU & Map 0x000080-0x00008F */
100         bridgereg_t     _pad_000080;
101         bridgereg_t     b_dir_map;                      /* 0x000084 */
102         bridgereg_t     _pad_000088[2];
103
104         /* SSRAM 0x000090-0x00009F */
105         bridgereg_t     _pad_000090;
106         bridgereg_t     b_ram_perr;                     /* 0x000094 */
107         bridgereg_t     _pad_000098[2];
108
109         /* Arbitration 0x0000A0-0x0000AF */
110         bridgereg_t     _pad_0000A0;
111         bridgereg_t     b_arb;                          /* 0x0000A4 */
112         bridgereg_t     _pad_0000A8[2];
113
114         /* Number In A Can 0x0000B0-0x0000BF */
115         bridgereg_t     _pad_0000B0;
116         bridgereg_t     b_nic;                          /* 0x0000B4 */
117         bridgereg_t     _pad_0000B8[2];
118
119         /* PCI/GIO 0x0000C0-0x0000FF */
120         bridgereg_t     _pad_0000C0;
121         bridgereg_t     b_bus_timeout;                  /* 0x0000C4 */
122 #define b_pci_bus_timeout b_bus_timeout
123
124         bridgereg_t     _pad_0000C8;
125         bridgereg_t     b_pci_cfg;                      /* 0x0000CC */
126         bridgereg_t     _pad_0000D0;
127         bridgereg_t     b_pci_err_upper;                /* 0x0000D4 */
128         bridgereg_t     _pad_0000D8;
129         bridgereg_t     b_pci_err_lower;                /* 0x0000DC */
130         bridgereg_t     _pad_0000E0[8];
131 #define b_gio_err_lower b_pci_err_lower
132 #define b_gio_err_upper b_pci_err_upper
133
134         /* Interrupt 0x000100-0x0001FF */
135         bridgereg_t     _pad_000100;
136         bridgereg_t     b_int_status;                   /* 0x000104 */
137         bridgereg_t     _pad_000108;
138         bridgereg_t     b_int_enable;                   /* 0x00010C */
139         bridgereg_t     _pad_000110;
140         bridgereg_t     b_int_rst_stat;                 /* 0x000114 */
141         bridgereg_t     _pad_000118;
142         bridgereg_t     b_int_mode;                     /* 0x00011C */
143         bridgereg_t     _pad_000120;
144         bridgereg_t     b_int_device;                   /* 0x000124 */
145         bridgereg_t     _pad_000128;
146         bridgereg_t     b_int_host_err;                 /* 0x00012C */
147
148         struct {
149                 bridgereg_t     __pad;                  /* 0x0001{30,,,68} */
150                 bridgereg_t     addr;                   /* 0x0001{34,,,6C} */
151         } b_int_addr[8];                                /* 0x000130 */
152
153         bridgereg_t     _pad_000170[36];
154
155         /* Device 0x000200-0x0003FF */
156         struct {
157                 bridgereg_t     __pad;                  /* 0x0002{00,,,38} */
158                 bridgereg_t     reg;                    /* 0x0002{04,,,3C} */
159         } b_device[8];                                  /* 0x000200 */
160
161         struct {
162                 bridgereg_t     __pad;                  /* 0x0002{40,,,78} */
163                 bridgereg_t     reg;                    /* 0x0002{44,,,7C} */
164         } b_wr_req_buf[8];                              /* 0x000240 */
165
166         struct {
167                 bridgereg_t     __pad;                  /* 0x0002{80,,,88} */
168                 bridgereg_t     reg;                    /* 0x0002{84,,,8C} */
169         } b_rrb_map[2];                                 /* 0x000280 */
170 #define b_even_resp     b_rrb_map[0].reg                /* 0x000284 */
171 #define b_odd_resp      b_rrb_map[1].reg                /* 0x00028C */
172
173         bridgereg_t     _pad_000290;
174         bridgereg_t     b_resp_status;                  /* 0x000294 */
175         bridgereg_t     _pad_000298;
176         bridgereg_t     b_resp_clear;                   /* 0x00029C */
177
178         bridgereg_t     _pad_0002A0[24];
179
180         char            _pad_000300[0x10000 - 0x000300];
181
182         /* Internal Address Translation Entry RAM 0x010000-0x0103FF */
183         union {
184                 bridge_ate_t    wr;                     /* write-only */
185                 struct {
186                         bridgereg_t     _p_pad;
187                         bridgereg_t     rd;             /* read-only */
188                 }                       hi;
189         }                           b_int_ate_ram[128];
190
191         char    _pad_010400[0x11000 - 0x010400];
192
193         /* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */
194         struct {
195                 bridgereg_t     _p_pad;
196                 bridgereg_t     rd;             /* read-only */
197         } b_int_ate_ram_lo[128];
198
199         char    _pad_011400[0x20000 - 0x011400];
200
201         /* PCI Device Configuration Spaces 0x020000-0x027FFF */
202         union {                         /* make all access sizes available. */
203                 u8      c[0x1000 / 1];
204                 u16     s[0x1000 / 2];
205                 u32     l[0x1000 / 4];
206                 u64     d[0x1000 / 8];
207                 union {
208                         u8      c[0x100 / 1];
209                         u16     s[0x100 / 2];
210                         u32     l[0x100 / 4];
211                         u64     d[0x100 / 8];
212                 } f[8];
213         } b_type0_cfg_dev[8];                                   /* 0x020000 */
214
215     /* PCI Type 1 Configuration Space 0x028000-0x028FFF */
216         union {                         /* make all access sizes available. */
217                 u8      c[0x1000 / 1];
218                 u16     s[0x1000 / 2];
219                 u32     l[0x1000 / 4];
220                 u64     d[0x1000 / 8];
221         } b_type1_cfg;                                  /* 0x028000-0x029000 */
222
223         char    _pad_029000[0x007000];                  /* 0x029000-0x030000 */
224
225         /* PCI Interrupt Acknowledge Cycle 0x030000 */
226         union {
227                 u8      c[8 / 1];
228                 u16     s[8 / 2];
229                 u32     l[8 / 4];
230                 u64     d[8 / 8];
231         } b_pci_iack;                                           /* 0x030000 */
232
233         u8      _pad_030007[0x04fff8];                  /* 0x030008-0x07FFFF */
234
235         /* External Address Translation Entry RAM 0x080000-0x0FFFFF */
236         bridge_ate_t    b_ext_ate_ram[0x10000];
237
238         /* Reserved 0x100000-0x1FFFFF */
239         char    _pad_100000[0x200000-0x100000];
240
241         /* PCI/GIO Device Spaces 0x200000-0xBFFFFF */
242         union {                         /* make all access sizes available. */
243                 u8      c[0x100000 / 1];
244                 u16     s[0x100000 / 2];
245                 u32     l[0x100000 / 4];
246                 u64     d[0x100000 / 8];
247         } b_devio_raw[10];                              /* 0x200000 */
248
249         /* b_devio macro is a bit strange; it reflects the
250          * fact that the Bridge ASIC provides 2M for the
251          * first two DevIO windows and 1M for the other six.
252          */
253 #define b_devio(n)      b_devio_raw[((n)<2)?(n*2):(n+2)]
254
255         /* External Flash Proms 1,0 0xC00000-0xFFFFFF */
256         union {         /* make all access sizes available. */
257                 u8      c[0x400000 / 1];        /* read-only */
258                 u16     s[0x400000 / 2];        /* read-write */
259                 u32     l[0x400000 / 4];        /* read-only */
260                 u64     d[0x400000 / 8];        /* read-only */
261         } b_external_flash;                     /* 0xC00000 */
262 } bridge_t;
263
264 /*
265  * Field formats for Error Command Word and Auxillary Error Command Word
266  * of bridge.
267  */
268 typedef struct bridge_err_cmdword_s {
269         union {
270                 u32             cmd_word;
271                 struct {
272                         u32     didn:4,         /* Destination ID */
273                                 sidn:4,         /* Source ID      */
274                                 pactyp:4,       /* Packet type    */
275                                 tnum:5,         /* Trans Number   */
276                                 coh:1,          /* Coh Transacti  */
277                                 ds:2,           /* Data size      */
278                                 gbr:1,          /* GBR enable     */
279                                 vbpm:1,         /* VBPM message   */
280                                 error:1,        /* Error occurred  */
281                                 barr:1,         /* Barrier op     */
282                                 rsvd:8;
283                 } berr_st;
284         } berr_un;
285 } bridge_err_cmdword_t;
286
287 #define berr_field      berr_un.berr_st
288 #endif /* !__ASSEMBLY__ */
289
290 /*
291  * The values of these macros can and should be crosschecked
292  * regularly against the offsets of the like-named fields
293  * within the "bridge_t" structure above.
294  */
295
296 /* Byte offset macros for Bridge internal registers */
297
298 #define BRIDGE_WID_ID           WIDGET_ID
299 #define BRIDGE_WID_STAT         WIDGET_STATUS
300 #define BRIDGE_WID_ERR_UPPER    WIDGET_ERR_UPPER_ADDR
301 #define BRIDGE_WID_ERR_LOWER    WIDGET_ERR_LOWER_ADDR
302 #define BRIDGE_WID_CONTROL      WIDGET_CONTROL
303 #define BRIDGE_WID_REQ_TIMEOUT  WIDGET_REQ_TIMEOUT
304 #define BRIDGE_WID_INT_UPPER    WIDGET_INTDEST_UPPER_ADDR
305 #define BRIDGE_WID_INT_LOWER    WIDGET_INTDEST_LOWER_ADDR
306 #define BRIDGE_WID_ERR_CMDWORD  WIDGET_ERR_CMD_WORD
307 #define BRIDGE_WID_LLP          WIDGET_LLP_CFG
308 #define BRIDGE_WID_TFLUSH       WIDGET_TFLUSH
309
310 #define BRIDGE_WID_AUX_ERR      0x00005C        /* Aux Error Command Word */
311 #define BRIDGE_WID_RESP_UPPER   0x000064        /* Response Buf Upper Addr */
312 #define BRIDGE_WID_RESP_LOWER   0x00006C        /* Response Buf Lower Addr */
313 #define BRIDGE_WID_TST_PIN_CTRL 0x000074        /* Test pin control */
314
315 #define BRIDGE_DIR_MAP          0x000084        /* Direct Map reg */
316
317 #define BRIDGE_RAM_PERR         0x000094        /* SSRAM Parity Error */
318
319 #define BRIDGE_ARB              0x0000A4        /* Arbitration Priority reg */
320
321 #define BRIDGE_NIC              0x0000B4        /* Number In A Can */
322
323 #define BRIDGE_BUS_TIMEOUT      0x0000C4        /* Bus Timeout Register */
324 #define BRIDGE_PCI_BUS_TIMEOUT  BRIDGE_BUS_TIMEOUT
325 #define BRIDGE_PCI_CFG          0x0000CC        /* PCI Type 1 Config reg */
326 #define BRIDGE_PCI_ERR_UPPER    0x0000D4        /* PCI error Upper Addr */
327 #define BRIDGE_PCI_ERR_LOWER    0x0000DC        /* PCI error Lower Addr */
328
329 #define BRIDGE_INT_STATUS       0x000104        /* Interrupt Status */
330 #define BRIDGE_INT_ENABLE       0x00010C        /* Interrupt Enables */
331 #define BRIDGE_INT_RST_STAT     0x000114        /* Reset Intr Status */
332 #define BRIDGE_INT_MODE         0x00011C        /* Interrupt Mode */
333 #define BRIDGE_INT_DEVICE       0x000124        /* Interrupt Device */
334 #define BRIDGE_INT_HOST_ERR     0x00012C        /* Host Error Field */
335
336 #define BRIDGE_INT_ADDR0        0x000134        /* Host Address Reg */
337 #define BRIDGE_INT_ADDR_OFF     0x000008        /* Host Addr offset (1..7) */
338 #define BRIDGE_INT_ADDR(x)      (BRIDGE_INT_ADDR0+(x)*BRIDGE_INT_ADDR_OFF)
339
340 #define BRIDGE_DEVICE0          0x000204        /* Device 0 */
341 #define BRIDGE_DEVICE_OFF       0x000008        /* Device offset (1..7) */
342 #define BRIDGE_DEVICE(x)        (BRIDGE_DEVICE0+(x)*BRIDGE_DEVICE_OFF)
343
344 #define BRIDGE_WR_REQ_BUF0      0x000244        /* Write Request Buffer 0 */
345 #define BRIDGE_WR_REQ_BUF_OFF   0x000008        /* Buffer Offset (1..7) */
346 #define BRIDGE_WR_REQ_BUF(x)    (BRIDGE_WR_REQ_BUF0+(x)*BRIDGE_WR_REQ_BUF_OFF)
347
348 #define BRIDGE_EVEN_RESP        0x000284        /* Even Device Response Buf */
349 #define BRIDGE_ODD_RESP         0x00028C        /* Odd Device Response Buf */
350
351 #define BRIDGE_RESP_STATUS      0x000294        /* Read Response Status reg */
352 #define BRIDGE_RESP_CLEAR       0x00029C        /* Read Response Clear reg */
353
354 /* Byte offset macros for Bridge I/O space */
355
356 #define BRIDGE_ATE_RAM          0x00010000      /* Internal Addr Xlat Ram */
357
358 #define BRIDGE_TYPE0_CFG_DEV0   0x00020000      /* Type 0 Cfg, Device 0 */
359 #define BRIDGE_TYPE0_CFG_SLOT_OFF       0x00001000      /* Type 0 Cfg Slot Offset (1..7) */
360 #define BRIDGE_TYPE0_CFG_FUNC_OFF       0x00000100      /* Type 0 Cfg Func Offset (1..7) */
361 #define BRIDGE_TYPE0_CFG_DEV(s)         (BRIDGE_TYPE0_CFG_DEV0+\
362                                          (s)*BRIDGE_TYPE0_CFG_SLOT_OFF)
363 #define BRIDGE_TYPE0_CFG_DEVF(s, f)     (BRIDGE_TYPE0_CFG_DEV0+\
364                                          (s)*BRIDGE_TYPE0_CFG_SLOT_OFF+\
365                                          (f)*BRIDGE_TYPE0_CFG_FUNC_OFF)
366
367 #define BRIDGE_TYPE1_CFG        0x00028000      /* Type 1 Cfg space */
368
369 #define BRIDGE_PCI_IACK         0x00030000      /* PCI Interrupt Ack */
370 #define BRIDGE_EXT_SSRAM        0x00080000      /* Extern SSRAM (ATE) */
371
372 /* Byte offset macros for Bridge device IO spaces */
373
374 #define BRIDGE_DEV_CNT          8       /* Up to 8 devices per bridge */
375 #define BRIDGE_DEVIO0           0x00200000      /* Device IO 0 Addr */
376 #define BRIDGE_DEVIO1           0x00400000      /* Device IO 1 Addr */
377 #define BRIDGE_DEVIO2           0x00600000      /* Device IO 2 Addr */
378 #define BRIDGE_DEVIO_OFF        0x00100000      /* Device IO Offset (3..7) */
379
380 #define BRIDGE_DEVIO_2MB        0x00200000      /* Device IO Offset (0..1) */
381 #define BRIDGE_DEVIO_1MB        0x00100000      /* Device IO Offset (2..7) */
382
383 #define BRIDGE_DEVIO(x)         ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB)
384
385 #define BRIDGE_EXTERNAL_FLASH   0x00C00000      /* External Flash PROMS */
386
387 /* ========================================================================
388  *    Bridge register bit field definitions
389  */
390
391 /* Widget part number of bridge */
392 #define BRIDGE_WIDGET_PART_NUM          0xc002
393 #define XBRIDGE_WIDGET_PART_NUM         0xd002
394
395 /* Manufacturer of bridge */
396 #define BRIDGE_WIDGET_MFGR_NUM          0x036
397 #define XBRIDGE_WIDGET_MFGR_NUM         0x024
398
399 /* Revision numbers for known Bridge revisions */
400 #define BRIDGE_REV_A                    0x1
401 #define BRIDGE_REV_B                    0x2
402 #define BRIDGE_REV_C                    0x3
403 #define BRIDGE_REV_D                    0x4
404
405 /* Bridge widget status register bits definition */
406
407 #define BRIDGE_STAT_LLP_REC_CNT         (0xFFu << 24)
408 #define BRIDGE_STAT_LLP_TX_CNT          (0xFF << 16)
409 #define BRIDGE_STAT_FLASH_SELECT        (0x1 << 6)
410 #define BRIDGE_STAT_PCI_GIO_N           (0x1 << 5)
411 #define BRIDGE_STAT_PENDING             (0x1F << 0)
412
413 /* Bridge widget control register bits definition */
414 #define BRIDGE_CTRL_FLASH_WR_EN         (0x1ul << 31)
415 #define BRIDGE_CTRL_EN_CLK50            (0x1 << 30)
416 #define BRIDGE_CTRL_EN_CLK40            (0x1 << 29)
417 #define BRIDGE_CTRL_EN_CLK33            (0x1 << 28)
418 #define BRIDGE_CTRL_RST(n)              ((n) << 24)
419 #define BRIDGE_CTRL_RST_MASK            (BRIDGE_CTRL_RST(0xF))
420 #define BRIDGE_CTRL_RST_PIN(x)          (BRIDGE_CTRL_RST(0x1 << (x)))
421 #define BRIDGE_CTRL_IO_SWAP             (0x1 << 23)
422 #define BRIDGE_CTRL_MEM_SWAP            (0x1 << 22)
423 #define BRIDGE_CTRL_PAGE_SIZE           (0x1 << 21)
424 #define BRIDGE_CTRL_SS_PAR_BAD          (0x1 << 20)
425 #define BRIDGE_CTRL_SS_PAR_EN           (0x1 << 19)
426 #define BRIDGE_CTRL_SSRAM_SIZE(n)       ((n) << 17)
427 #define BRIDGE_CTRL_SSRAM_SIZE_MASK     (BRIDGE_CTRL_SSRAM_SIZE(0x3))
428 #define BRIDGE_CTRL_SSRAM_512K          (BRIDGE_CTRL_SSRAM_SIZE(0x3))
429 #define BRIDGE_CTRL_SSRAM_128K          (BRIDGE_CTRL_SSRAM_SIZE(0x2))
430 #define BRIDGE_CTRL_SSRAM_64K           (BRIDGE_CTRL_SSRAM_SIZE(0x1))
431 #define BRIDGE_CTRL_SSRAM_1K            (BRIDGE_CTRL_SSRAM_SIZE(0x0))
432 #define BRIDGE_CTRL_F_BAD_PKT           (0x1 << 16)
433 #define BRIDGE_CTRL_LLP_XBAR_CRD(n)     ((n) << 12)
434 #define BRIDGE_CTRL_LLP_XBAR_CRD_MASK   (BRIDGE_CTRL_LLP_XBAR_CRD(0xf))
435 #define BRIDGE_CTRL_CLR_RLLP_CNT        (0x1 << 11)
436 #define BRIDGE_CTRL_CLR_TLLP_CNT        (0x1 << 10)
437 #define BRIDGE_CTRL_SYS_END             (0x1 << 9)
438 #define BRIDGE_CTRL_MAX_TRANS(n)        ((n) << 4)
439 #define BRIDGE_CTRL_MAX_TRANS_MASK      (BRIDGE_CTRL_MAX_TRANS(0x1f))
440 #define BRIDGE_CTRL_WIDGET_ID(n)        ((n) << 0)
441 #define BRIDGE_CTRL_WIDGET_ID_MASK      (BRIDGE_CTRL_WIDGET_ID(0xf))
442
443 /* Bridge Response buffer Error Upper Register bit fields definition */
444 #define BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT (20)
445 #define BRIDGE_RESP_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
446 #define BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT (16)
447 #define BRIDGE_RESP_ERRUPPR_BUFNUM_MASK (0xF << BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
448 #define BRIDGE_RESP_ERRRUPPR_BUFMASK    (0xFFFF)
449
450 #define BRIDGE_RESP_ERRUPPR_BUFNUM(x)   \
451                         (((x) & BRIDGE_RESP_ERRUPPR_BUFNUM_MASK) >> \
452                                 BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT)
453
454 #define BRIDGE_RESP_ERRUPPR_DEVICE(x)   \
455                         (((x) &  BRIDGE_RESP_ERRUPPR_DEVNUM_MASK) >> \
456                                  BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT)
457
458 /* Bridge direct mapping register bits definition */
459 #define BRIDGE_DIRMAP_W_ID_SHFT         20
460 #define BRIDGE_DIRMAP_W_ID              (0xf << BRIDGE_DIRMAP_W_ID_SHFT)
461 #define BRIDGE_DIRMAP_RMF_64            (0x1 << 18)
462 #define BRIDGE_DIRMAP_ADD512            (0x1 << 17)
463 #define BRIDGE_DIRMAP_OFF               (0x1ffff << 0)
464 #define BRIDGE_DIRMAP_OFF_ADDRSHFT      (31)    /* lsbit of DIRMAP_OFF is xtalk address bit 31 */
465
466 /* Bridge Arbitration register bits definition */
467 #define BRIDGE_ARB_REQ_WAIT_TICK(x)     ((x) << 16)
468 #define BRIDGE_ARB_REQ_WAIT_TICK_MASK   BRIDGE_ARB_REQ_WAIT_TICK(0x3)
469 #define BRIDGE_ARB_REQ_WAIT_EN(x)       ((x) << 8)
470 #define BRIDGE_ARB_REQ_WAIT_EN_MASK     BRIDGE_ARB_REQ_WAIT_EN(0xff)
471 #define BRIDGE_ARB_FREEZE_GNT           (1 << 6)
472 #define BRIDGE_ARB_HPRI_RING_B2         (1 << 5)
473 #define BRIDGE_ARB_HPRI_RING_B1         (1 << 4)
474 #define BRIDGE_ARB_HPRI_RING_B0         (1 << 3)
475 #define BRIDGE_ARB_LPRI_RING_B2         (1 << 2)
476 #define BRIDGE_ARB_LPRI_RING_B1         (1 << 1)
477 #define BRIDGE_ARB_LPRI_RING_B0         (1 << 0)
478
479 /* Bridge Bus time-out register bits definition */
480 #define BRIDGE_BUS_PCI_RETRY_HLD(x)     ((x) << 16)
481 #define BRIDGE_BUS_PCI_RETRY_HLD_MASK   BRIDGE_BUS_PCI_RETRY_HLD(0x1f)
482 #define BRIDGE_BUS_GIO_TIMEOUT          (1 << 12)
483 #define BRIDGE_BUS_PCI_RETRY_CNT(x)     ((x) << 0)
484 #define BRIDGE_BUS_PCI_RETRY_MASK       BRIDGE_BUS_PCI_RETRY_CNT(0x3ff)
485
486 /* Bridge interrupt status register bits definition */
487 #define BRIDGE_ISR_MULTI_ERR            (0x1u << 31)
488 #define BRIDGE_ISR_PMU_ESIZE_FAULT      (0x1 << 30)
489 #define BRIDGE_ISR_UNEXP_RESP           (0x1 << 29)
490 #define BRIDGE_ISR_BAD_XRESP_PKT        (0x1 << 28)
491 #define BRIDGE_ISR_BAD_XREQ_PKT         (0x1 << 27)
492 #define BRIDGE_ISR_RESP_XTLK_ERR        (0x1 << 26)
493 #define BRIDGE_ISR_REQ_XTLK_ERR         (0x1 << 25)
494 #define BRIDGE_ISR_INVLD_ADDR           (0x1 << 24)
495 #define BRIDGE_ISR_UNSUPPORTED_XOP      (0x1 << 23)
496 #define BRIDGE_ISR_XREQ_FIFO_OFLOW      (0x1 << 22)
497 #define BRIDGE_ISR_LLP_REC_SNERR        (0x1 << 21)
498 #define BRIDGE_ISR_LLP_REC_CBERR        (0x1 << 20)
499 #define BRIDGE_ISR_LLP_RCTY             (0x1 << 19)
500 #define BRIDGE_ISR_LLP_TX_RETRY         (0x1 << 18)
501 #define BRIDGE_ISR_LLP_TCTY             (0x1 << 17)
502 #define BRIDGE_ISR_SSRAM_PERR           (0x1 << 16)
503 #define BRIDGE_ISR_PCI_ABORT            (0x1 << 15)
504 #define BRIDGE_ISR_PCI_PARITY           (0x1 << 14)
505 #define BRIDGE_ISR_PCI_SERR             (0x1 << 13)
506 #define BRIDGE_ISR_PCI_PERR             (0x1 << 12)
507 #define BRIDGE_ISR_PCI_MST_TIMEOUT      (0x1 << 11)
508 #define BRIDGE_ISR_GIO_MST_TIMEOUT      BRIDGE_ISR_PCI_MST_TIMEOUT
509 #define BRIDGE_ISR_PCI_RETRY_CNT        (0x1 << 10)
510 #define BRIDGE_ISR_XREAD_REQ_TIMEOUT    (0x1 << 9)
511 #define BRIDGE_ISR_GIO_B_ENBL_ERR       (0x1 << 8)
512 #define BRIDGE_ISR_INT_MSK              (0xff << 0)
513 #define BRIDGE_ISR_INT(x)               (0x1 << (x))
514
515 #define BRIDGE_ISR_LINK_ERROR           \
516                 (BRIDGE_ISR_LLP_REC_SNERR|BRIDGE_ISR_LLP_REC_CBERR|     \
517                  BRIDGE_ISR_LLP_RCTY|BRIDGE_ISR_LLP_TX_RETRY|           \
518                  BRIDGE_ISR_LLP_TCTY)
519
520 #define BRIDGE_ISR_PCIBUS_PIOERR        \
521                 (BRIDGE_ISR_PCI_MST_TIMEOUT|BRIDGE_ISR_PCI_ABORT)
522
523 #define BRIDGE_ISR_PCIBUS_ERROR         \
524                 (BRIDGE_ISR_PCIBUS_PIOERR|BRIDGE_ISR_PCI_PERR|          \
525                  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_RETRY_CNT|          \
526                  BRIDGE_ISR_PCI_PARITY)
527
528 #define BRIDGE_ISR_XTALK_ERROR          \
529                 (BRIDGE_ISR_XREAD_REQ_TIMEOUT|BRIDGE_ISR_XREQ_FIFO_OFLOW|\
530                  BRIDGE_ISR_UNSUPPORTED_XOP|BRIDGE_ISR_INVLD_ADDR|      \
531                  BRIDGE_ISR_REQ_XTLK_ERR|BRIDGE_ISR_RESP_XTLK_ERR|      \
532                  BRIDGE_ISR_BAD_XREQ_PKT|BRIDGE_ISR_BAD_XRESP_PKT|      \
533                  BRIDGE_ISR_UNEXP_RESP)
534
535 #define BRIDGE_ISR_ERRORS               \
536                 (BRIDGE_ISR_LINK_ERROR|BRIDGE_ISR_PCIBUS_ERROR|         \
537                  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR|          \
538                  BRIDGE_ISR_PMU_ESIZE_FAULT)
539
540 /*
541  * List of Errors which are fatal and kill the sytem
542  */
543 #define BRIDGE_ISR_ERROR_FATAL          \
544                 ((BRIDGE_ISR_XTALK_ERROR & ~BRIDGE_ISR_XREAD_REQ_TIMEOUT)|\
545                  BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_PARITY )
546
547 #define BRIDGE_ISR_ERROR_DUMP           \
548                 (BRIDGE_ISR_PCIBUS_ERROR|BRIDGE_ISR_PMU_ESIZE_FAULT|    \
549                  BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR)
550
551 /* Bridge interrupt enable register bits definition */
552 #define BRIDGE_IMR_UNEXP_RESP           BRIDGE_ISR_UNEXP_RESP
553 #define BRIDGE_IMR_PMU_ESIZE_FAULT      BRIDGE_ISR_PMU_ESIZE_FAULT
554 #define BRIDGE_IMR_BAD_XRESP_PKT        BRIDGE_ISR_BAD_XRESP_PKT
555 #define BRIDGE_IMR_BAD_XREQ_PKT         BRIDGE_ISR_BAD_XREQ_PKT
556 #define BRIDGE_IMR_RESP_XTLK_ERR        BRIDGE_ISR_RESP_XTLK_ERR
557 #define BRIDGE_IMR_REQ_XTLK_ERR         BRIDGE_ISR_REQ_XTLK_ERR
558 #define BRIDGE_IMR_INVLD_ADDR           BRIDGE_ISR_INVLD_ADDR
559 #define BRIDGE_IMR_UNSUPPORTED_XOP      BRIDGE_ISR_UNSUPPORTED_XOP
560 #define BRIDGE_IMR_XREQ_FIFO_OFLOW      BRIDGE_ISR_XREQ_FIFO_OFLOW
561 #define BRIDGE_IMR_LLP_REC_SNERR        BRIDGE_ISR_LLP_REC_SNERR
562 #define BRIDGE_IMR_LLP_REC_CBERR        BRIDGE_ISR_LLP_REC_CBERR
563 #define BRIDGE_IMR_LLP_RCTY             BRIDGE_ISR_LLP_RCTY
564 #define BRIDGE_IMR_LLP_TX_RETRY         BRIDGE_ISR_LLP_TX_RETRY
565 #define BRIDGE_IMR_LLP_TCTY             BRIDGE_ISR_LLP_TCTY
566 #define BRIDGE_IMR_SSRAM_PERR           BRIDGE_ISR_SSRAM_PERR
567 #define BRIDGE_IMR_PCI_ABORT            BRIDGE_ISR_PCI_ABORT
568 #define BRIDGE_IMR_PCI_PARITY           BRIDGE_ISR_PCI_PARITY
569 #define BRIDGE_IMR_PCI_SERR             BRIDGE_ISR_PCI_SERR
570 #define BRIDGE_IMR_PCI_PERR             BRIDGE_ISR_PCI_PERR
571 #define BRIDGE_IMR_PCI_MST_TIMEOUT      BRIDGE_ISR_PCI_MST_TIMEOUT
572 #define BRIDGE_IMR_GIO_MST_TIMEOUT      BRIDGE_ISR_GIO_MST_TIMEOUT
573 #define BRIDGE_IMR_PCI_RETRY_CNT        BRIDGE_ISR_PCI_RETRY_CNT
574 #define BRIDGE_IMR_XREAD_REQ_TIMEOUT    BRIDGE_ISR_XREAD_REQ_TIMEOUT
575 #define BRIDGE_IMR_GIO_B_ENBL_ERR       BRIDGE_ISR_GIO_B_ENBL_ERR
576 #define BRIDGE_IMR_INT_MSK              BRIDGE_ISR_INT_MSK
577 #define BRIDGE_IMR_INT(x)               BRIDGE_ISR_INT(x)
578
579 /* Bridge interrupt reset register bits definition */
580 #define BRIDGE_IRR_MULTI_CLR            (0x1 << 6)
581 #define BRIDGE_IRR_CRP_GRP_CLR          (0x1 << 5)
582 #define BRIDGE_IRR_RESP_BUF_GRP_CLR     (0x1 << 4)
583 #define BRIDGE_IRR_REQ_DSP_GRP_CLR      (0x1 << 3)
584 #define BRIDGE_IRR_LLP_GRP_CLR          (0x1 << 2)
585 #define BRIDGE_IRR_SSRAM_GRP_CLR        (0x1 << 1)
586 #define BRIDGE_IRR_PCI_GRP_CLR          (0x1 << 0)
587 #define BRIDGE_IRR_GIO_GRP_CLR          (0x1 << 0)
588 #define BRIDGE_IRR_ALL_CLR              0x7f
589
590 #define BRIDGE_IRR_CRP_GRP              (BRIDGE_ISR_UNEXP_RESP | \
591                                          BRIDGE_ISR_XREQ_FIFO_OFLOW)
592 #define BRIDGE_IRR_RESP_BUF_GRP         (BRIDGE_ISR_BAD_XRESP_PKT | \
593                                          BRIDGE_ISR_RESP_XTLK_ERR | \
594                                          BRIDGE_ISR_XREAD_REQ_TIMEOUT)
595 #define BRIDGE_IRR_REQ_DSP_GRP          (BRIDGE_ISR_UNSUPPORTED_XOP | \
596                                          BRIDGE_ISR_BAD_XREQ_PKT | \
597                                          BRIDGE_ISR_REQ_XTLK_ERR | \
598                                          BRIDGE_ISR_INVLD_ADDR)
599 #define BRIDGE_IRR_LLP_GRP              (BRIDGE_ISR_LLP_REC_SNERR | \
600                                          BRIDGE_ISR_LLP_REC_CBERR | \
601                                          BRIDGE_ISR_LLP_RCTY | \
602                                          BRIDGE_ISR_LLP_TX_RETRY | \
603                                          BRIDGE_ISR_LLP_TCTY)
604 #define BRIDGE_IRR_SSRAM_GRP            (BRIDGE_ISR_SSRAM_PERR | \
605                                          BRIDGE_ISR_PMU_ESIZE_FAULT)
606 #define BRIDGE_IRR_PCI_GRP              (BRIDGE_ISR_PCI_ABORT | \
607                                          BRIDGE_ISR_PCI_PARITY | \
608                                          BRIDGE_ISR_PCI_SERR | \
609                                          BRIDGE_ISR_PCI_PERR | \
610                                          BRIDGE_ISR_PCI_MST_TIMEOUT | \
611                                          BRIDGE_ISR_PCI_RETRY_CNT)
612
613 #define BRIDGE_IRR_GIO_GRP              (BRIDGE_ISR_GIO_B_ENBL_ERR | \
614                                          BRIDGE_ISR_GIO_MST_TIMEOUT)
615
616 /* Bridge INT_DEV register bits definition */
617 #define BRIDGE_INT_DEV_SHFT(n)          ((n)*3)
618 #define BRIDGE_INT_DEV_MASK(n)          (0x7 << BRIDGE_INT_DEV_SHFT(n))
619 #define BRIDGE_INT_DEV_SET(_dev, _line) (_dev << BRIDGE_INT_DEV_SHFT(_line))
620
621 /* Bridge interrupt(x) register bits definition */
622 #define BRIDGE_INT_ADDR_HOST            0x0003FF00
623 #define BRIDGE_INT_ADDR_FLD             0x000000FF
624
625 #define BRIDGE_TMO_PCI_RETRY_HLD_MASK   0x1f0000
626 #define BRIDGE_TMO_GIO_TIMEOUT_MASK     0x001000
627 #define BRIDGE_TMO_PCI_RETRY_CNT_MASK   0x0003ff
628
629 #define BRIDGE_TMO_PCI_RETRY_CNT_MAX    0x3ff
630
631 /*
632  * The NASID should be shifted by this amount and stored into the
633  * interrupt(x) register.
634  */
635 #define BRIDGE_INT_ADDR_NASID_SHFT      8
636
637 /*
638  * The BRIDGE_INT_ADDR_DEST_IO bit should be set to send an interrupt to
639  * memory.
640  */
641 #define BRIDGE_INT_ADDR_DEST_IO         (1 << 17)
642 #define BRIDGE_INT_ADDR_DEST_MEM        0
643 #define BRIDGE_INT_ADDR_MASK            (1 << 17)
644
645 /* Bridge device(x) register bits definition */
646 #define BRIDGE_DEV_ERR_LOCK_EN          0x10000000
647 #define BRIDGE_DEV_PAGE_CHK_DIS         0x08000000
648 #define BRIDGE_DEV_FORCE_PCI_PAR        0x04000000
649 #define BRIDGE_DEV_VIRTUAL_EN           0x02000000
650 #define BRIDGE_DEV_PMU_WRGA_EN          0x01000000
651 #define BRIDGE_DEV_DIR_WRGA_EN          0x00800000
652 #define BRIDGE_DEV_DEV_SIZE             0x00400000
653 #define BRIDGE_DEV_RT                   0x00200000
654 #define BRIDGE_DEV_SWAP_PMU             0x00100000
655 #define BRIDGE_DEV_SWAP_DIR             0x00080000
656 #define BRIDGE_DEV_PREF                 0x00040000
657 #define BRIDGE_DEV_PRECISE              0x00020000
658 #define BRIDGE_DEV_COH                  0x00010000
659 #define BRIDGE_DEV_BARRIER              0x00008000
660 #define BRIDGE_DEV_GBR                  0x00004000
661 #define BRIDGE_DEV_DEV_SWAP             0x00002000
662 #define BRIDGE_DEV_DEV_IO_MEM           0x00001000
663 #define BRIDGE_DEV_OFF_MASK             0x00000fff
664 #define BRIDGE_DEV_OFF_ADDR_SHFT        20
665
666 #define BRIDGE_DEV_PMU_BITS             (BRIDGE_DEV_PMU_WRGA_EN         | \
667                                          BRIDGE_DEV_SWAP_PMU)
668 #define BRIDGE_DEV_D32_BITS             (BRIDGE_DEV_DIR_WRGA_EN         | \
669                                          BRIDGE_DEV_SWAP_DIR            | \
670                                          BRIDGE_DEV_PREF                | \
671                                          BRIDGE_DEV_PRECISE             | \
672                                          BRIDGE_DEV_COH                 | \
673                                          BRIDGE_DEV_BARRIER)
674 #define BRIDGE_DEV_D64_BITS             (BRIDGE_DEV_DIR_WRGA_EN         | \
675                                          BRIDGE_DEV_SWAP_DIR            | \
676                                          BRIDGE_DEV_COH                 | \
677                                          BRIDGE_DEV_BARRIER)
678
679 /* Bridge Error Upper register bit field definition */
680 #define BRIDGE_ERRUPPR_DEVMASTER        (0x1 << 20)     /* Device was master */
681 #define BRIDGE_ERRUPPR_PCIVDEV          (0x1 << 19)     /* Virtual Req value */
682 #define BRIDGE_ERRUPPR_DEVNUM_SHFT      (16)
683 #define BRIDGE_ERRUPPR_DEVNUM_MASK      (0x7 << BRIDGE_ERRUPPR_DEVNUM_SHFT)
684 #define BRIDGE_ERRUPPR_DEVICE(err)      (((err) >> BRIDGE_ERRUPPR_DEVNUM_SHFT) & 0x7)
685 #define BRIDGE_ERRUPPR_ADDRMASK         (0xFFFF)
686
687 /* Bridge interrupt mode register bits definition */
688 #define BRIDGE_INTMODE_CLR_PKT_EN(x)    (0x1 << (x))
689
690 /* this should be written to the xbow's link_control(x) register */
691 #define BRIDGE_CREDIT   3
692
693 /* RRB assignment register */
694 #define BRIDGE_RRB_EN   0x8     /* after shifting down */
695 #define BRIDGE_RRB_DEV  0x7     /* after shifting down */
696 #define BRIDGE_RRB_VDEV 0x4     /* after shifting down */
697 #define BRIDGE_RRB_PDEV 0x3     /* after shifting down */
698
699 /* RRB status register */
700 #define BRIDGE_RRB_VALID(r)     (0x00010000<<(r))
701 #define BRIDGE_RRB_INUSE(r)     (0x00000001<<(r))
702
703 /* RRB clear register */
704 #define BRIDGE_RRB_CLEAR(r)     (0x00000001<<(r))
705
706 /* xbox system controller declarations */
707 #define XBOX_BRIDGE_WID         8
708 #define FLASH_PROM1_BASE        0xE00000 /* To read the xbox sysctlr status */
709 #define XBOX_RPS_EXISTS         1 << 6   /* RPS bit in status register */
710 #define XBOX_RPS_FAIL           1 << 4   /* RPS status bit in register */
711
712 /* ========================================================================
713  */
714 /*
715  * Macros for Xtalk to Bridge bus (PCI/GIO) PIO
716  * refer to section 4.2.1 of Bridge Spec for xtalk to PCI/GIO PIO mappings
717  */
718 /* XTALK addresses that map into Bridge Bus addr space */
719 #define BRIDGE_PIO32_XTALK_ALIAS_BASE   0x000040000000L
720 #define BRIDGE_PIO32_XTALK_ALIAS_LIMIT  0x00007FFFFFFFL
721 #define BRIDGE_PIO64_XTALK_ALIAS_BASE   0x000080000000L
722 #define BRIDGE_PIO64_XTALK_ALIAS_LIMIT  0x0000BFFFFFFFL
723 #define BRIDGE_PCIIO_XTALK_ALIAS_BASE   0x000100000000L
724 #define BRIDGE_PCIIO_XTALK_ALIAS_LIMIT  0x0001FFFFFFFFL
725
726 /* Ranges of PCI bus space that can be accessed via PIO from xtalk */
727 #define BRIDGE_MIN_PIO_ADDR_MEM         0x00000000      /* 1G PCI memory space */
728 #define BRIDGE_MAX_PIO_ADDR_MEM         0x3fffffff
729 #define BRIDGE_MIN_PIO_ADDR_IO          0x00000000      /* 4G PCI IO space */
730 #define BRIDGE_MAX_PIO_ADDR_IO          0xffffffff
731
732 /* XTALK addresses that map into PCI addresses */
733 #define BRIDGE_PCI_MEM32_BASE           BRIDGE_PIO32_XTALK_ALIAS_BASE
734 #define BRIDGE_PCI_MEM32_LIMIT          BRIDGE_PIO32_XTALK_ALIAS_LIMIT
735 #define BRIDGE_PCI_MEM64_BASE           BRIDGE_PIO64_XTALK_ALIAS_BASE
736 #define BRIDGE_PCI_MEM64_LIMIT          BRIDGE_PIO64_XTALK_ALIAS_LIMIT
737 #define BRIDGE_PCI_IO_BASE              BRIDGE_PCIIO_XTALK_ALIAS_BASE
738 #define BRIDGE_PCI_IO_LIMIT             BRIDGE_PCIIO_XTALK_ALIAS_LIMIT
739
740 /*
741  * Macros for Bridge bus (PCI/GIO) to Xtalk DMA
742  */
743 /* Bridge Bus DMA addresses */
744 #define BRIDGE_LOCAL_BASE               0
745 #define BRIDGE_DMA_MAPPED_BASE          0x40000000
746 #define BRIDGE_DMA_MAPPED_SIZE          0x40000000      /* 1G Bytes */
747 #define BRIDGE_DMA_DIRECT_BASE          0x80000000
748 #define BRIDGE_DMA_DIRECT_SIZE          0x80000000      /* 2G Bytes */
749
750 #define PCI32_LOCAL_BASE                BRIDGE_LOCAL_BASE
751
752 /* PCI addresses of regions decoded by Bridge for DMA */
753 #define PCI32_MAPPED_BASE               BRIDGE_DMA_MAPPED_BASE
754 #define PCI32_DIRECT_BASE               BRIDGE_DMA_DIRECT_BASE
755
756 #define IS_PCI32_LOCAL(x)       ((ulong_t)(x) < PCI32_MAPPED_BASE)
757 #define IS_PCI32_MAPPED(x)      ((ulong_t)(x) < PCI32_DIRECT_BASE && \
758                                         (ulong_t)(x) >= PCI32_MAPPED_BASE)
759 #define IS_PCI32_DIRECT(x)      ((ulong_t)(x) >= PCI32_MAPPED_BASE)
760 #define IS_PCI64(x)             ((ulong_t)(x) >= PCI64_BASE)
761
762 /*
763  * The GIO address space.
764  */
765 /* Xtalk to GIO PIO */
766 #define BRIDGE_GIO_MEM32_BASE           BRIDGE_PIO32_XTALK_ALIAS_BASE
767 #define BRIDGE_GIO_MEM32_LIMIT          BRIDGE_PIO32_XTALK_ALIAS_LIMIT
768
769 #define GIO_LOCAL_BASE                  BRIDGE_LOCAL_BASE
770
771 /* GIO addresses of regions decoded by Bridge for DMA */
772 #define GIO_MAPPED_BASE                 BRIDGE_DMA_MAPPED_BASE
773 #define GIO_DIRECT_BASE                 BRIDGE_DMA_DIRECT_BASE
774
775 #define IS_GIO_LOCAL(x)         ((ulong_t)(x) < GIO_MAPPED_BASE)
776 #define IS_GIO_MAPPED(x)        ((ulong_t)(x) < GIO_DIRECT_BASE && \
777                                         (ulong_t)(x) >= GIO_MAPPED_BASE)
778 #define IS_GIO_DIRECT(x)        ((ulong_t)(x) >= GIO_MAPPED_BASE)
779
780 /* PCI to xtalk mapping */
781
782 /* given a DIR_OFF value and a pci/gio 32 bits direct address, determine
783  * which xtalk address is accessed
784  */
785 #define BRIDGE_DIRECT_32_SEG_SIZE       BRIDGE_DMA_DIRECT_SIZE
786 #define BRIDGE_DIRECT_32_TO_XTALK(dir_off,adr)          \
787         ((dir_off) * BRIDGE_DIRECT_32_SEG_SIZE +        \
788                 ((adr) & (BRIDGE_DIRECT_32_SEG_SIZE - 1)) + PHYS_RAMBASE)
789
790 /* 64-bit address attribute masks */
791 #define PCI64_ATTR_TARG_MASK    0xf000000000000000
792 #define PCI64_ATTR_TARG_SHFT    60
793 #define PCI64_ATTR_PREF         0x0800000000000000
794 #define PCI64_ATTR_PREC         0x0400000000000000
795 #define PCI64_ATTR_VIRTUAL      0x0200000000000000
796 #define PCI64_ATTR_BAR          0x0100000000000000
797 #define PCI64_ATTR_RMF_MASK     0x00ff000000000000
798 #define PCI64_ATTR_RMF_SHFT     48
799
800 #ifndef __ASSEMBLY__
801 /* Address translation entry for mapped pci32 accesses */
802 typedef union ate_u {
803         u64     ent;
804         struct ate_s {
805                 u64     rmf:16;
806                 u64     addr:36;
807                 u64     targ:4;
808                 u64     reserved:3;
809                 u64     barrier:1;
810                 u64     prefetch:1;
811                 u64     precise:1;
812                 u64     coherent:1;
813                 u64     valid:1;
814         } field;
815 } ate_t;
816 #endif /* !__ASSEMBLY__ */
817
818 #define ATE_V           0x01
819 #define ATE_CO          0x02
820 #define ATE_PREC        0x04
821 #define ATE_PREF        0x08
822 #define ATE_BAR         0x10
823
824 #define ATE_PFNSHIFT            12
825 #define ATE_TIDSHIFT            8
826 #define ATE_RMFSHIFT            48
827
828 #define mkate(xaddr, xid, attr) ((xaddr) & 0x0000fffffffff000ULL) | \
829                                 ((xid)<<ATE_TIDSHIFT) | \
830                                 (attr)
831
832 #define BRIDGE_INTERNAL_ATES    128
833
834 struct bridge_controller {
835         struct pci_controller   pc;
836         struct resource         mem;
837         struct resource         io;
838         bridge_t                *base;
839         nasid_t                 nasid;
840         unsigned int            widget_id;
841         unsigned int            irq_cpu;
842         dma64_addr_t            baddr;
843         unsigned int            pci_int[8];
844 };
845
846 #define BRIDGE_CONTROLLER(bus) \
847         ((struct bridge_controller *)((bus)->sysdata))
848
849 extern void register_bridge_irq(unsigned int irq);
850 extern int request_bridge_irq(struct bridge_controller *bc);
851
852 extern struct pci_ops bridge_pci_ops;
853
854 #endif /* _ASM_PCI_BRIDGE_H */