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TOMOYO Linux Cross Reference
Linux/arch/powerpc/include/asm/pmac_feature.h

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  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 
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 

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