1 /*
2 * Definition of platform feature hooks for PowerMacs
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 1998 Paul Mackerras &
9 * Ben. Herrenschmidt.
10 *
11 *
12 * Note: I removed media-bay details from the feature stuff, I believe it's
13 * not worth it, the media-bay driver can directly use the mac-io
14 * ASIC registers.
15 *
16 * Implementation note: Currently, none of these functions will block.
17 * However, they may internally protect themselves with a spinlock
18 * for way too long. Be prepared for at least some of these to block
19 * in the future.
20 *
21 * Unless specifically defined, the result code is assumed to be an
22 * error when negative, 0 is the default success result. Some functions
23 * may return additional positive result values.
24 *
25 * To keep implementation simple, all feature calls are assumed to have
26 * the prototype parameters (struct device_node* node, int value).
27 * When either is not used, pass 0.
28 */
29
30 #ifdef __KERNEL__
31 #ifndef __ASM_POWERPC_PMAC_FEATURE_H
32 #define __ASM_POWERPC_PMAC_FEATURE_H
33
34 #include <asm/macio.h>
35 #include <asm/machdep.h>
36
37 /*
38 * Known Mac motherboard models
39 *
40 * Please, report any error here to benh@kernel.crashing.org, thanks !
41 *
42 * Note that I don't fully maintain this list for Core99 & MacRISC2
43 * and I'm considering removing all NewWorld entries from it and
44 * entirely rely on the model string.
45 */
46
47 /* PowerSurge are the first generation of PCI Pmacs. This include
48 * all of the Grand-Central based machines. We currently don't
49 * differentiate most of them.
50 */
51 #define PMAC_TYPE_PSURGE 0x10 /* PowerSurge */
52 #define PMAC_TYPE_ANS 0x11 /* Apple Network Server */
53
54 /* Here is the infamous serie of OHare based machines
55 */
56 #define PMAC_TYPE_COMET 0x20 /* Believed to be PowerBook 2400 */
57 #define PMAC_TYPE_HOOPER 0x21 /* Believed to be PowerBook 3400 */
58 #define PMAC_TYPE_KANGA 0x22 /* PowerBook 3500 (first G3) */
59 #define PMAC_TYPE_ALCHEMY 0x23 /* Alchemy motherboard base */
60 #define PMAC_TYPE_GAZELLE 0x24 /* Spartacus, some 5xxx/6xxx */
61 #define PMAC_TYPE_UNKNOWN_OHARE 0x2f /* Unknown, but OHare based */
62
63 /* Here are the Heathrow based machines
64 * FIXME: Differenciate wallstreet,mainstreet,wallstreetII
65 */
66 #define PMAC_TYPE_GOSSAMER 0x30 /* Gossamer motherboard */
67 #define PMAC_TYPE_SILK 0x31 /* Desktop PowerMac G3 */
68 #define PMAC_TYPE_WALLSTREET 0x32 /* Wallstreet/Mainstreet PowerBook*/
69 #define PMAC_TYPE_UNKNOWN_HEATHROW 0x3f /* Unknown but heathrow based */
70
71 /* Here are newworld machines based on Paddington (heathrow derivative)
72 */
73 #define PMAC_TYPE_101_PBOOK 0x40 /* 101 PowerBook (aka Lombard) */
74 #define PMAC_TYPE_ORIG_IMAC 0x41 /* First generation iMac */
75 #define PMAC_TYPE_YOSEMITE 0x42 /* B&W G3 */
76 #define PMAC_TYPE_YIKES 0x43 /* Yikes G4 (PCI graphics) */
77 #define PMAC_TYPE_UNKNOWN_PADDINGTON 0x4f /* Unknown but paddington based */
78
79 /* Core99 machines based on UniNorth 1.0 and 1.5
80 *
81 * Note: A single entry here may cover several actual models according
82 * to the device-tree. (Sawtooth is most tower G4s, FW_IMAC is most
83 * FireWire based iMacs, etc...). Those machines are too similar to be
84 * distinguished here, when they need to be differencied, use the
85 * device-tree "model" or "compatible" property.
86 */
87 #define PMAC_TYPE_ORIG_IBOOK 0x40 /* First iBook model (no firewire) */
88 #define PMAC_TYPE_SAWTOOTH 0x41 /* Desktop G4s */
89 #define PMAC_TYPE_FW_IMAC 0x42 /* FireWire iMacs (except Pangea based) */
90 #define PMAC_TYPE_FW_IBOOK 0x43 /* FireWire iBooks (except iBook2) */
91 #define PMAC_TYPE_CUBE 0x44 /* Cube PowerMac */
92 #define PMAC_TYPE_QUICKSILVER 0x45 /* QuickSilver G4s */
93 #define PMAC_TYPE_PISMO 0x46 /* Pismo PowerBook */
94 #define PMAC_TYPE_TITANIUM 0x47 /* Titanium PowerBook */
95 #define PMAC_TYPE_TITANIUM2 0x48 /* Titanium II PowerBook (no L3, M6) */
96 #define PMAC_TYPE_TITANIUM3 0x49 /* Titanium III PowerBook (with L3 & M7) */
97 #define PMAC_TYPE_TITANIUM4 0x50 /* Titanium IV PowerBook (with L3 & M9) */
98 #define PMAC_TYPE_EMAC 0x50 /* eMac */
99 #define PMAC_TYPE_UNKNOWN_CORE99 0x5f
100
101 /* MacRisc2 with UniNorth 2.0 */
102 #define PMAC_TYPE_RACKMAC 0x80 /* XServe */
103 #define PMAC_TYPE_WINDTUNNEL 0x81
104
105 /* MacRISC2 machines based on the Pangea chipset
106 */
107 #define PMAC_TYPE_PANGEA_IMAC 0x100 /* Flower Power iMac */
108 #define PMAC_TYPE_IBOOK2 0x101 /* iBook2 (polycarbonate) */
109 #define PMAC_TYPE_FLAT_PANEL_IMAC 0x102 /* Flat panel iMac */
110 #define PMAC_TYPE_UNKNOWN_PANGEA 0x10f
111
112 /* MacRISC2 machines based on the Intrepid chipset
113 */
114 #define PMAC_TYPE_UNKNOWN_INTREPID 0x11f /* Generic */
115
116 /* MacRISC4 / G5 machines. We don't have per-machine selection here anymore,
117 * but rather machine families
118 */
119 #define PMAC_TYPE_POWERMAC_G5 0x150 /* U3 & U3H based */
120 #define PMAC_TYPE_POWERMAC_G5_U3L 0x151 /* U3L based desktop */
121 #define PMAC_TYPE_IMAC_G5 0x152 /* iMac G5 */
122 #define PMAC_TYPE_XSERVE_G5 0x153 /* Xserve G5 */
123 #define PMAC_TYPE_UNKNOWN_K2 0x19f /* Any other K2 based */
124 #define PMAC_TYPE_UNKNOWN_SHASTA 0x19e /* Any other Shasta based */
125
126 /*
127 * Motherboard flags
128 */
129
130 #define PMAC_MB_CAN_SLEEP 0x00000001
131 #define PMAC_MB_HAS_FW_POWER 0x00000002
132 #define PMAC_MB_OLD_CORE99 0x00000004
133 #define PMAC_MB_MOBILE 0x00000008
134 #define PMAC_MB_MAY_SLEEP 0x00000010
135
136 /*
137 * Feature calls supported on pmac
138 *
139 */
140
141 /*
142 * Use this inline wrapper
143 */
144 struct device_node;
145
pmac_call_feature(int selector,struct device_node * node,long param,long value)146 static inline long pmac_call_feature(int selector, struct device_node* node,
147 long param, long value)
148 {
149 if (!ppc_md.feature_call || !machine_is(powermac))
150 return -ENODEV;
151 return ppc_md.feature_call(selector, node, param, value);
152 }
153
154 /* PMAC_FTR_SERIAL_ENABLE (struct device_node* node, int param, int value)
155 * enable/disable an SCC side. Pass the node corresponding to the
156 * channel side as a parameter.
157 * param is the type of port
158 * if param is ored with PMAC_SCC_FLAG_XMON, then the SCC is locked enabled
159 * for use by xmon.
160 */
161 #define PMAC_FTR_SCC_ENABLE PMAC_FTR_DEF(0)
162 #define PMAC_SCC_ASYNC 0
163 #define PMAC_SCC_IRDA 1
164 #define PMAC_SCC_I2S1 2
165 #define PMAC_SCC_FLAG_XMON 0x00001000
166
167 /* PMAC_FTR_MODEM_ENABLE (struct device_node* node, 0, int value)
168 * enable/disable the internal modem.
169 */
170 #define PMAC_FTR_MODEM_ENABLE PMAC_FTR_DEF(1)
171
172 /* PMAC_FTR_SWIM3_ENABLE (struct device_node* node, 0,int value)
173 * enable/disable the swim3 (floppy) cell of a mac-io ASIC
174 */
175 #define PMAC_FTR_SWIM3_ENABLE PMAC_FTR_DEF(2)
176
177 /* PMAC_FTR_MESH_ENABLE (struct device_node* node, 0, int value)
178 * enable/disable the mesh (scsi) cell of a mac-io ASIC
179 */
180 #define PMAC_FTR_MESH_ENABLE PMAC_FTR_DEF(3)
181
182 /* PMAC_FTR_IDE_ENABLE (struct device_node* node, int busID, int value)
183 * enable/disable an IDE port of a mac-io ASIC
184 * pass the busID parameter
185 */
186 #define PMAC_FTR_IDE_ENABLE PMAC_FTR_DEF(4)
187
188 /* PMAC_FTR_IDE_RESET (struct device_node* node, int busID, int value)
189 * assert(1)/release(0) an IDE reset line (mac-io IDE only)
190 */
191 #define PMAC_FTR_IDE_RESET PMAC_FTR_DEF(5)
192
193 /* PMAC_FTR_BMAC_ENABLE (struct device_node* node, 0, int value)
194 * enable/disable the bmac (ethernet) cell of a mac-io ASIC, also drive
195 * it's reset line
196 */
197 #define PMAC_FTR_BMAC_ENABLE PMAC_FTR_DEF(6)
198
199 /* PMAC_FTR_GMAC_ENABLE (struct device_node* node, 0, int value)
200 * enable/disable the gmac (ethernet) cell of an uninorth ASIC. This
201 * control the cell's clock.
202 */
203 #define PMAC_FTR_GMAC_ENABLE PMAC_FTR_DEF(7)
204
205 /* PMAC_FTR_GMAC_PHY_RESET (struct device_node* node, 0, 0)
206 * Perform a HW reset of the PHY connected to a gmac controller.
207 * Pass the gmac device node, not the PHY node.
208 */
209 #define PMAC_FTR_GMAC_PHY_RESET PMAC_FTR_DEF(8)
210
211 /* PMAC_FTR_SOUND_CHIP_ENABLE (struct device_node* node, 0, int value)
212 * enable/disable the sound chip, whatever it is and provided it can
213 * actually be controlled
214 */
215 #define PMAC_FTR_SOUND_CHIP_ENABLE PMAC_FTR_DEF(9)
216
217 /* -- add various tweaks related to sound routing -- */
218
219 /* PMAC_FTR_AIRPORT_ENABLE (struct device_node* node, 0, int value)
220 * enable/disable the airport card
221 */
222 #define PMAC_FTR_AIRPORT_ENABLE PMAC_FTR_DEF(10)
223
224 /* PMAC_FTR_RESET_CPU (NULL, int cpu_nr, 0)
225 * toggle the reset line of a CPU on an uninorth-based SMP machine
226 */
227 #define PMAC_FTR_RESET_CPU PMAC_FTR_DEF(11)
228
229 /* PMAC_FTR_USB_ENABLE (struct device_node* node, 0, int value)
230 * enable/disable an USB cell, along with the power of the USB "pad"
231 * on keylargo based machines
232 */
233 #define PMAC_FTR_USB_ENABLE PMAC_FTR_DEF(12)
234
235 /* PMAC_FTR_1394_ENABLE (struct device_node* node, 0, int value)
236 * enable/disable the firewire cell of an uninorth ASIC.
237 */
238 #define PMAC_FTR_1394_ENABLE PMAC_FTR_DEF(13)
239
240 /* PMAC_FTR_1394_CABLE_POWER (struct device_node* node, 0, int value)
241 * enable/disable the firewire cable power supply of the uninorth
242 * firewire cell
243 */
244 #define PMAC_FTR_1394_CABLE_POWER PMAC_FTR_DEF(14)
245
246 /* PMAC_FTR_SLEEP_STATE (struct device_node* node, 0, int value)
247 * set the sleep state of the motherboard.
248 *
249 * Pass -1 as value to query for sleep capability
250 * Pass 1 to set IOs to sleep
251 * Pass 0 to set IOs to wake
252 */
253 #define PMAC_FTR_SLEEP_STATE PMAC_FTR_DEF(15)
254
255 /* PMAC_FTR_GET_MB_INFO (NULL, selector, 0)
256 *
257 * returns some motherboard infos.
258 * selector: 0 - model id
259 * 1 - model flags (capabilities)
260 * 2 - model name (cast to const char *)
261 */
262 #define PMAC_FTR_GET_MB_INFO PMAC_FTR_DEF(16)
263 #define PMAC_MB_INFO_MODEL 0
264 #define PMAC_MB_INFO_FLAGS 1
265 #define PMAC_MB_INFO_NAME 2
266
267 /* PMAC_FTR_READ_GPIO (NULL, int index, 0)
268 *
269 * read a GPIO from a mac-io controller of type KeyLargo or Pangea.
270 * the value returned is a byte (positive), or a negative error code
271 */
272 #define PMAC_FTR_READ_GPIO PMAC_FTR_DEF(17)
273
274 /* PMAC_FTR_WRITE_GPIO (NULL, int index, int value)
275 *
276 * write a GPIO of a mac-io controller of type KeyLargo or Pangea.
277 */
278 #define PMAC_FTR_WRITE_GPIO PMAC_FTR_DEF(18)
279
280 /* PMAC_FTR_ENABLE_MPIC
281 *
282 * Enable the MPIC cell
283 */
284 #define PMAC_FTR_ENABLE_MPIC PMAC_FTR_DEF(19)
285
286 /* PMAC_FTR_AACK_DELAY_ENABLE (NULL, int enable, 0)
287 *
288 * Enable/disable the AACK delay on the northbridge for systems using DFS
289 */
290 #define PMAC_FTR_AACK_DELAY_ENABLE PMAC_FTR_DEF(20)
291
292 /* PMAC_FTR_DEVICE_CAN_WAKE
293 *
294 * Used by video drivers to inform system that they can actually perform
295 * wakeup from sleep
296 */
297 #define PMAC_FTR_DEVICE_CAN_WAKE PMAC_FTR_DEF(22)
298
299
300 /* Don't use those directly, they are for the sake of pmac_setup.c */
301 extern long pmac_do_feature_call(unsigned int selector, ...);
302 extern void pmac_feature_init(void);
303
304 /* Video suspend tweak */
305 extern void pmac_set_early_video_resume(void (*proc)(void *data), void *data);
306 extern void pmac_call_early_video_resume(void);
307
308 #define PMAC_FTR_DEF(x) ((0x6660000) | (x))
309
310 /* The AGP driver registers itself here */
311 extern void pmac_register_agp_pm(struct pci_dev *bridge,
312 int (*suspend)(struct pci_dev *bridge),
313 int (*resume)(struct pci_dev *bridge));
314
315 /* Those are meant to be used by video drivers to deal with AGP
316 * suspend resume properly
317 */
318 extern void pmac_suspend_agp_for_card(struct pci_dev *dev);
319 extern void pmac_resume_agp_for_card(struct pci_dev *dev);
320
321 /*
322 * The part below is for use by macio_asic.c only, do not rely
323 * on the data structures or constants below in a normal driver
324 *
325 */
326
327 #define MAX_MACIO_CHIPS 2
328
329 enum {
330 macio_unknown = 0,
331 macio_grand_central,
332 macio_ohare,
333 macio_ohareII,
334 macio_heathrow,
335 macio_gatwick,
336 macio_paddington,
337 macio_keylargo,
338 macio_pangea,
339 macio_intrepid,
340 macio_keylargo2,
341 macio_shasta,
342 };
343
344 struct macio_chip
345 {
346 struct device_node *of_node;
347 int type;
348 const char *name;
349 int rev;
350 volatile u32 __iomem *base;
351 unsigned long flags;
352
353 /* For use by macio_asic PCI driver */
354 struct macio_bus lbus;
355 };
356
357 extern struct macio_chip macio_chips[MAX_MACIO_CHIPS];
358
359 #define MACIO_FLAG_SCCA_ON 0x00000001
360 #define MACIO_FLAG_SCCB_ON 0x00000002
361 #define MACIO_FLAG_SCC_LOCKED 0x00000004
362 #define MACIO_FLAG_AIRPORT_ON 0x00000010
363 #define MACIO_FLAG_FW_SUPPORTED 0x00000020
364
365 extern struct macio_chip* macio_find(struct device_node* child, int type);
366
367 #define MACIO_FCR32(macio, r) ((macio)->base + ((r) >> 2))
368 #define MACIO_FCR8(macio, r) (((volatile u8 __iomem *)((macio)->base)) + (r))
369
370 #define MACIO_IN32(r) (in_le32(MACIO_FCR32(macio,r)))
371 #define MACIO_OUT32(r,v) (out_le32(MACIO_FCR32(macio,r), (v)))
372 #define MACIO_BIS(r,v) (MACIO_OUT32((r), MACIO_IN32(r) | (v)))
373 #define MACIO_BIC(r,v) (MACIO_OUT32((r), MACIO_IN32(r) & ~(v)))
374 #define MACIO_IN8(r) (in_8(MACIO_FCR8(macio,r)))
375 #define MACIO_OUT8(r,v) (out_8(MACIO_FCR8(macio,r), (v)))
376
377 /*
378 * Those are exported by pmac feature for internal use by arch code
379 * only like the platform function callbacks, do not use directly in drivers
380 */
381 extern raw_spinlock_t feature_lock;
382 extern struct device_node *uninorth_node;
383 extern u32 __iomem *uninorth_base;
384
385 /*
386 * Uninorth reg. access. Note that Uni-N regs are big endian
387 */
388
389 #define UN_REG(r) (uninorth_base + ((r) >> 2))
390 #define UN_IN(r) (in_be32(UN_REG(r)))
391 #define UN_OUT(r,v) (out_be32(UN_REG(r), (v)))
392 #define UN_BIS(r,v) (UN_OUT((r), UN_IN(r) | (v)))
393 #define UN_BIC(r,v) (UN_OUT((r), UN_IN(r) & ~(v)))
394
395 /* Uninorth variant:
396 *
397 * 0 = not uninorth
398 * 1 = U1.x or U2.x
399 * 3 = U3
400 * 4 = U4
401 */
402 extern int pmac_get_uninorth_variant(void);
403
404 #endif /* __ASM_POWERPC_PMAC_FEATURE_H */
405 #endif /* __KERNEL__ */
406