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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/ti113x.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/pcmcia/ti113x.h')
-rw-r--r--drivers/pcmcia/ti113x.h662
1 files changed, 662 insertions, 0 deletions
diff --git a/drivers/pcmcia/ti113x.h b/drivers/pcmcia/ti113x.h
new file mode 100644
index 000000000000..52c073a9d7e4
--- /dev/null
+++ b/drivers/pcmcia/ti113x.h
@@ -0,0 +1,662 @@
1/*
2 * ti113x.h 1.16 1999/10/25 20:03:34
3 *
4 * The contents of this file are subject to the Mozilla Public License
5 * Version 1.1 (the "License"); you may not use this file except in
6 * compliance with the License. You may obtain a copy of the License
7 * at http://www.mozilla.org/MPL/
8 *
9 * Software distributed under the License is distributed on an "AS IS"
10 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11 * the License for the specific language governing rights and
12 * limitations under the License.
13 *
14 * The initial developer of the original code is David A. Hinds
15 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
16 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
17 *
18 * Alternatively, the contents of this file may be used under the
19 * terms of the GNU General Public License version 2 (the "GPL"), in which
20 * case the provisions of the GPL are applicable instead of the
21 * above. If you wish to allow the use of your version of this file
22 * only under the terms of the GPL and not to allow others to use
23 * your version of this file under the MPL, indicate your decision by
24 * deleting the provisions above and replace them with the notice and
25 * other provisions required by the GPL. If you do not delete the
26 * provisions above, a recipient may use your version of this file
27 * under either the MPL or the GPL.
28 */
29
30#ifndef _LINUX_TI113X_H
31#define _LINUX_TI113X_H
32
33#include <linux/config.h>
34
35/* Register definitions for TI 113X PCI-to-CardBus bridges */
36
37/* System Control Register */
38#define TI113X_SYSTEM_CONTROL 0x0080 /* 32 bit */
39#define TI113X_SCR_SMIROUTE 0x04000000
40#define TI113X_SCR_SMISTATUS 0x02000000
41#define TI113X_SCR_SMIENB 0x01000000
42#define TI113X_SCR_VCCPROT 0x00200000
43#define TI113X_SCR_REDUCEZV 0x00100000
44#define TI113X_SCR_CDREQEN 0x00080000
45#define TI113X_SCR_CDMACHAN 0x00070000
46#define TI113X_SCR_SOCACTIVE 0x00002000
47#define TI113X_SCR_PWRSTREAM 0x00000800
48#define TI113X_SCR_DELAYUP 0x00000400
49#define TI113X_SCR_DELAYDOWN 0x00000200
50#define TI113X_SCR_INTERROGATE 0x00000100
51#define TI113X_SCR_CLKRUN_SEL 0x00000080
52#define TI113X_SCR_PWRSAVINGS 0x00000040
53#define TI113X_SCR_SUBSYSRW 0x00000020
54#define TI113X_SCR_CB_DPAR 0x00000010
55#define TI113X_SCR_CDMA_EN 0x00000008
56#define TI113X_SCR_ASYNC_IRQ 0x00000004
57#define TI113X_SCR_KEEPCLK 0x00000002
58#define TI113X_SCR_CLKRUN_ENA 0x00000001
59
60#define TI122X_SCR_SER_STEP 0xc0000000
61#define TI122X_SCR_INTRTIE 0x20000000
62#define TI122X_SCR_CBRSVD 0x00400000
63#define TI122X_SCR_MRBURSTDN 0x00008000
64#define TI122X_SCR_MRBURSTUP 0x00004000
65#define TI122X_SCR_RIMUX 0x00000001
66
67/* Multimedia Control Register */
68#define TI1250_MULTIMEDIA_CTL 0x0084 /* 8 bit */
69#define TI1250_MMC_ZVOUTEN 0x80
70#define TI1250_MMC_PORTSEL 0x40
71#define TI1250_MMC_ZVEN1 0x02
72#define TI1250_MMC_ZVEN0 0x01
73
74#define TI1250_GENERAL_STATUS 0x0085 /* 8 bit */
75#define TI1250_GPIO0_CONTROL 0x0088 /* 8 bit */
76#define TI1250_GPIO1_CONTROL 0x0089 /* 8 bit */
77#define TI1250_GPIO2_CONTROL 0x008a /* 8 bit */
78#define TI1250_GPIO3_CONTROL 0x008b /* 8 bit */
79#define TI1250_GPIO_MODE_MASK 0xc0
80
81/* IRQMUX/MFUNC Register */
82#define TI122X_MFUNC 0x008c /* 32 bit */
83#define TI122X_MFUNC0_MASK 0x0000000f
84#define TI122X_MFUNC1_MASK 0x000000f0
85#define TI122X_MFUNC2_MASK 0x00000f00
86#define TI122X_MFUNC3_MASK 0x0000f000
87#define TI122X_MFUNC4_MASK 0x000f0000
88#define TI122X_MFUNC5_MASK 0x00f00000
89#define TI122X_MFUNC6_MASK 0x0f000000
90
91#define TI122X_MFUNC0_INTA 0x00000002
92#define TI125X_MFUNC0_INTB 0x00000001
93#define TI122X_MFUNC1_INTB 0x00000020
94#define TI122X_MFUNC3_IRQSER 0x00001000
95
96
97/* Retry Status Register */
98#define TI113X_RETRY_STATUS 0x0090 /* 8 bit */
99#define TI113X_RSR_PCIRETRY 0x80
100#define TI113X_RSR_CBRETRY 0x40
101#define TI113X_RSR_TEXP_CBB 0x20
102#define TI113X_RSR_MEXP_CBB 0x10
103#define TI113X_RSR_TEXP_CBA 0x08
104#define TI113X_RSR_MEXP_CBA 0x04
105#define TI113X_RSR_TEXP_PCI 0x02
106#define TI113X_RSR_MEXP_PCI 0x01
107
108/* Card Control Register */
109#define TI113X_CARD_CONTROL 0x0091 /* 8 bit */
110#define TI113X_CCR_RIENB 0x80
111#define TI113X_CCR_ZVENABLE 0x40
112#define TI113X_CCR_PCI_IRQ_ENA 0x20
113#define TI113X_CCR_PCI_IREQ 0x10
114#define TI113X_CCR_PCI_CSC 0x08
115#define TI113X_CCR_SPKROUTEN 0x02
116#define TI113X_CCR_IFG 0x01
117
118#define TI1220_CCR_PORT_SEL 0x20
119#define TI122X_CCR_AUD2MUX 0x04
120
121/* Device Control Register */
122#define TI113X_DEVICE_CONTROL 0x0092 /* 8 bit */
123#define TI113X_DCR_5V_FORCE 0x40
124#define TI113X_DCR_3V_FORCE 0x20
125#define TI113X_DCR_IMODE_MASK 0x06
126#define TI113X_DCR_IMODE_ISA 0x02
127#define TI113X_DCR_IMODE_SERIAL 0x04
128
129#define TI12XX_DCR_IMODE_PCI_ONLY 0x00
130#define TI12XX_DCR_IMODE_ALL_SERIAL 0x06
131
132/* Buffer Control Register */
133#define TI113X_BUFFER_CONTROL 0x0093 /* 8 bit */
134#define TI113X_BCR_CB_READ_DEPTH 0x08
135#define TI113X_BCR_CB_WRITE_DEPTH 0x04
136#define TI113X_BCR_PCI_READ_DEPTH 0x02
137#define TI113X_BCR_PCI_WRITE_DEPTH 0x01
138
139/* Diagnostic Register */
140#define TI1250_DIAGNOSTIC 0x0093 /* 8 bit */
141#define TI1250_DIAG_TRUE_VALUE 0x80
142#define TI1250_DIAG_PCI_IREQ 0x40
143#define TI1250_DIAG_PCI_CSC 0x20
144#define TI1250_DIAG_ASYNC_CSC 0x01
145
146/* DMA Registers */
147#define TI113X_DMA_0 0x0094 /* 32 bit */
148#define TI113X_DMA_1 0x0098 /* 32 bit */
149
150/* ExCA IO offset registers */
151#define TI113X_IO_OFFSET(map) (0x36+((map)<<1))
152
153/* EnE test register */
154#define ENE_TEST_C9 0xc9 /* 8bit */
155#define ENE_TEST_C9_TLTENABLE 0x02
156
157#ifdef CONFIG_CARDBUS
158
159/*
160 * Texas Instruments CardBus controller overrides.
161 */
162#define ti_sysctl(socket) ((socket)->private[0])
163#define ti_cardctl(socket) ((socket)->private[1])
164#define ti_devctl(socket) ((socket)->private[2])
165#define ti_diag(socket) ((socket)->private[3])
166#define ti_mfunc(socket) ((socket)->private[4])
167#define ene_test_c9(socket) ((socket)->private[5])
168
169/*
170 * These are the TI specific power management handlers.
171 */
172static void ti_save_state(struct yenta_socket *socket)
173{
174 ti_sysctl(socket) = config_readl(socket, TI113X_SYSTEM_CONTROL);
175 ti_mfunc(socket) = config_readl(socket, TI122X_MFUNC);
176 ti_cardctl(socket) = config_readb(socket, TI113X_CARD_CONTROL);
177 ti_devctl(socket) = config_readb(socket, TI113X_DEVICE_CONTROL);
178 ti_diag(socket) = config_readb(socket, TI1250_DIAGNOSTIC);
179
180 if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
181 ene_test_c9(socket) = config_readb(socket, ENE_TEST_C9);
182}
183
184static void ti_restore_state(struct yenta_socket *socket)
185{
186 config_writel(socket, TI113X_SYSTEM_CONTROL, ti_sysctl(socket));
187 config_writel(socket, TI122X_MFUNC, ti_mfunc(socket));
188 config_writeb(socket, TI113X_CARD_CONTROL, ti_cardctl(socket));
189 config_writeb(socket, TI113X_DEVICE_CONTROL, ti_devctl(socket));
190 config_writeb(socket, TI1250_DIAGNOSTIC, ti_diag(socket));
191
192 if (socket->dev->vendor == PCI_VENDOR_ID_ENE)
193 config_writeb(socket, ENE_TEST_C9, ene_test_c9(socket));
194}
195
196/*
197 * Zoom video control for TI122x/113x chips
198 */
199
200static void ti_zoom_video(struct pcmcia_socket *sock, int onoff)
201{
202 u8 reg;
203 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
204
205 /* If we don't have a Zoom Video switch this is harmless,
206 we just tristate the unused (ZV) lines */
207 reg = config_readb(socket, TI113X_CARD_CONTROL);
208 if (onoff)
209 /* Zoom zoom, we will all go together, zoom zoom, zoom zoom */
210 reg |= TI113X_CCR_ZVENABLE;
211 else
212 reg &= ~TI113X_CCR_ZVENABLE;
213 config_writeb(socket, TI113X_CARD_CONTROL, reg);
214}
215
216/*
217 * The 145x series can also use this. They have an additional
218 * ZV autodetect mode we don't use but don't actually need.
219 * FIXME: manual says its in func0 and func1 but disagrees with
220 * itself about this - do we need to force func0, if so we need
221 * to know a lot more about socket pairings in pcmcia_socket than
222 * we do now.. uggh.
223 */
224
225static void ti1250_zoom_video(struct pcmcia_socket *sock, int onoff)
226{
227 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket);
228 int shift = 0;
229 u8 reg;
230
231 ti_zoom_video(sock, onoff);
232
233 reg = config_readb(socket, TI1250_MULTIMEDIA_CTL);
234 reg |= TI1250_MMC_ZVOUTEN; /* ZV bus enable */
235
236 if(PCI_FUNC(socket->dev->devfn)==1)
237 shift = 1;
238
239 if(onoff)
240 {
241 reg &= ~(1<<6); /* Clear select bit */
242 reg |= shift<<6; /* Favour our socket */
243 reg |= 1<<shift; /* Socket zoom video on */
244 }
245 else
246 {
247 reg &= ~(1<<6); /* Clear select bit */
248 reg |= (1^shift)<<6; /* Favour other socket */
249 reg &= ~(1<<shift); /* Socket zoon video off */
250 }
251
252 config_writeb(socket, TI1250_MULTIMEDIA_CTL, reg);
253}
254
255static void ti_set_zv(struct yenta_socket *socket)
256{
257 if(socket->dev->vendor == PCI_VENDOR_ID_TI)
258 {
259 switch(socket->dev->device)
260 {
261 /* There may be more .. */
262 case PCI_DEVICE_ID_TI_1220:
263 case PCI_DEVICE_ID_TI_1221:
264 case PCI_DEVICE_ID_TI_1225:
265 case PCI_DEVICE_ID_TI_4510:
266 socket->socket.zoom_video = ti_zoom_video;
267 break;
268 case PCI_DEVICE_ID_TI_1250:
269 case PCI_DEVICE_ID_TI_1251A:
270 case PCI_DEVICE_ID_TI_1251B:
271 case PCI_DEVICE_ID_TI_1450:
272 socket->socket.zoom_video = ti1250_zoom_video;
273 }
274 }
275}
276
277
278/*
279 * Generic TI init - TI has an extension for the
280 * INTCTL register that sets the PCI CSC interrupt.
281 * Make sure we set it correctly at open and init
282 * time
283 * - override: disable the PCI CSC interrupt. This makes
284 * it possible to use the CSC interrupt to probe the
285 * ISA interrupts.
286 * - init: set the interrupt to match our PCI state.
287 * This makes us correctly get PCI CSC interrupt
288 * events.
289 */
290static int ti_init(struct yenta_socket *socket)
291{
292 u8 new, reg = exca_readb(socket, I365_INTCTL);
293
294 new = reg & ~I365_INTR_ENA;
295 if (socket->cb_irq)
296 new |= I365_INTR_ENA;
297 if (new != reg)
298 exca_writeb(socket, I365_INTCTL, new);
299 return 0;
300}
301
302static int ti_override(struct yenta_socket *socket)
303{
304 u8 new, reg = exca_readb(socket, I365_INTCTL);
305
306 new = reg & ~I365_INTR_ENA;
307 if (new != reg)
308 exca_writeb(socket, I365_INTCTL, new);
309
310 ti_set_zv(socket);
311
312 return 0;
313}
314
315static int ti113x_override(struct yenta_socket *socket)
316{
317 u8 cardctl;
318
319 cardctl = config_readb(socket, TI113X_CARD_CONTROL);
320 cardctl &= ~(TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_IREQ | TI113X_CCR_PCI_CSC);
321 if (socket->cb_irq)
322 cardctl |= TI113X_CCR_PCI_IRQ_ENA | TI113X_CCR_PCI_CSC | TI113X_CCR_PCI_IREQ;
323 config_writeb(socket, TI113X_CARD_CONTROL, cardctl);
324
325 return ti_override(socket);
326}
327
328
329/* irqrouting for func0, probes PCI interrupt and ISA interrupts */
330static void ti12xx_irqroute_func0(struct yenta_socket *socket)
331{
332 u32 mfunc, mfunc_old, devctl;
333 u8 gpio3, gpio3_old;
334 int pci_irq_status;
335
336 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
337 devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
338 printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
339 pci_name(socket->dev), mfunc, devctl);
340
341 /* make sure PCI interrupts are enabled before probing */
342 ti_init(socket);
343
344 /* test PCI interrupts first. only try fixing if return value is 0! */
345 pci_irq_status = yenta_probe_cb_irq(socket);
346 if (pci_irq_status)
347 goto out;
348
349 /*
350 * We're here which means PCI interrupts are _not_ delivered. try to
351 * find the right setting (all serial or parallel)
352 */
353 printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
354 pci_name(socket->dev));
355
356 /* for serial PCI make sure MFUNC3 is set to IRQSER */
357 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
358 switch (socket->dev->device) {
359 case PCI_DEVICE_ID_TI_1250:
360 case PCI_DEVICE_ID_TI_1251A:
361 case PCI_DEVICE_ID_TI_1251B:
362 case PCI_DEVICE_ID_TI_1450:
363 case PCI_DEVICE_ID_TI_1451A:
364 case PCI_DEVICE_ID_TI_4450:
365 case PCI_DEVICE_ID_TI_4451:
366 /* these chips have no IRQSER setting in MFUNC3 */
367 break;
368
369 default:
370 mfunc = (mfunc & ~TI122X_MFUNC3_MASK) | TI122X_MFUNC3_IRQSER;
371
372 /* write down if changed, probe */
373 if (mfunc != mfunc_old) {
374 config_writel(socket, TI122X_MFUNC, mfunc);
375
376 pci_irq_status = yenta_probe_cb_irq(socket);
377 if (pci_irq_status == 1) {
378 printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts ok\n",
379 pci_name(socket->dev));
380 mfunc_old = mfunc;
381 goto out;
382 }
383
384 /* not working, back to old value */
385 mfunc = mfunc_old;
386 config_writel(socket, TI122X_MFUNC, mfunc);
387
388 if (pci_irq_status == -1)
389 goto out;
390 }
391 }
392
393 /* serial PCI interrupts not working fall back to parallel */
394 printk(KERN_INFO "Yenta TI: socket %s falling back to parallel PCI interrupts\n",
395 pci_name(socket->dev));
396 devctl &= ~TI113X_DCR_IMODE_MASK;
397 devctl |= TI113X_DCR_IMODE_SERIAL; /* serial ISA could be right */
398 config_writeb(socket, TI113X_DEVICE_CONTROL, devctl);
399 }
400
401 /* parallel PCI interrupts: route INTA */
402 switch (socket->dev->device) {
403 case PCI_DEVICE_ID_TI_1250:
404 case PCI_DEVICE_ID_TI_1251A:
405 case PCI_DEVICE_ID_TI_1251B:
406 case PCI_DEVICE_ID_TI_1450:
407 /* make sure GPIO3 is set to INTA */
408 gpio3 = gpio3_old = config_readb(socket, TI1250_GPIO3_CONTROL);
409 gpio3 &= ~TI1250_GPIO_MODE_MASK;
410 if (gpio3 != gpio3_old)
411 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3);
412 break;
413
414 default:
415 gpio3 = gpio3_old = 0;
416
417 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI122X_MFUNC0_INTA;
418 if (mfunc != mfunc_old)
419 config_writel(socket, TI122X_MFUNC, mfunc);
420 }
421
422 /* time to probe again */
423 pci_irq_status = yenta_probe_cb_irq(socket);
424 if (pci_irq_status == 1) {
425 mfunc_old = mfunc;
426 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
427 pci_name(socket->dev));
428 } else {
429 /* not working, back to old value */
430 mfunc = mfunc_old;
431 config_writel(socket, TI122X_MFUNC, mfunc);
432 if (gpio3 != gpio3_old)
433 config_writeb(socket, TI1250_GPIO3_CONTROL, gpio3_old);
434 }
435
436out:
437 if (pci_irq_status < 1) {
438 socket->cb_irq = 0;
439 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
440 pci_name(socket->dev));
441 }
442}
443
444
445/*
446 * ties INTA and INTB together. also changes the devices irq to that of
447 * the function 0 device. call from func1 only.
448 * returns 1 if INTRTIE changed, 0 otherwise.
449 */
450static int ti12xx_tie_interrupts(struct yenta_socket *socket, int *old_irq)
451{
452 struct pci_dev *func0;
453 u32 sysctl;
454
455 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
456 if (sysctl & TI122X_SCR_INTRTIE)
457 return 0;
458
459 /* find func0 device */
460 func0 = pci_get_slot(socket->dev->bus, socket->dev->devfn & ~0x07);
461 if (!func0)
462 return 0;
463
464 /* change the interrupt to match func0, tie 'em up */
465 *old_irq = socket->cb_irq;
466 socket->cb_irq = socket->dev->irq = func0->irq;
467 sysctl |= TI122X_SCR_INTRTIE;
468 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
469
470 pci_dev_put(func0);
471
472 return 1;
473}
474
475/* undo what ti12xx_tie_interrupts() did */
476static void ti12xx_untie_interrupts(struct yenta_socket *socket, int old_irq)
477{
478 u32 sysctl = config_readl(socket, TI113X_SYSTEM_CONTROL);
479 sysctl &= ~TI122X_SCR_INTRTIE;
480 config_writel(socket, TI113X_SYSTEM_CONTROL, sysctl);
481
482 socket->cb_irq = socket->dev->irq = old_irq;
483}
484
485/*
486 * irqrouting for func1, plays with INTB routing
487 * only touches MFUNC for INTB routing. all other bits are taken
488 * care of in func0 already.
489 */
490static void ti12xx_irqroute_func1(struct yenta_socket *socket)
491{
492 u32 mfunc, mfunc_old, devctl;
493 int pci_irq_status;
494
495 mfunc = mfunc_old = config_readl(socket, TI122X_MFUNC);
496 devctl = config_readb(socket, TI113X_DEVICE_CONTROL);
497 printk(KERN_INFO "Yenta TI: socket %s, mfunc 0x%08x, devctl 0x%02x\n",
498 pci_name(socket->dev), mfunc, devctl);
499
500 /* make sure PCI interrupts are enabled before probing */
501 ti_init(socket);
502
503 /* test PCI interrupts first. only try fixing if return value is 0! */
504 pci_irq_status = yenta_probe_cb_irq(socket);
505 if (pci_irq_status)
506 goto out;
507
508 /*
509 * We're here which means PCI interrupts are _not_ delivered. try to
510 * find the right setting
511 */
512 printk(KERN_INFO "Yenta TI: socket %s probing PCI interrupt failed, trying to fix\n",
513 pci_name(socket->dev));
514
515
516 /* if all serial: set INTRTIE, probe again */
517 if ((devctl & TI113X_DCR_IMODE_MASK) == TI12XX_DCR_IMODE_ALL_SERIAL) {
518 int old_irq;
519
520 if (ti12xx_tie_interrupts(socket, &old_irq)) {
521 pci_irq_status = yenta_probe_cb_irq(socket);
522 if (pci_irq_status == 1) {
523 printk(KERN_INFO "Yenta TI: socket %s all-serial interrupts, tied ok\n",
524 pci_name(socket->dev));
525 goto out;
526 }
527
528 ti12xx_untie_interrupts(socket, old_irq);
529 }
530 }
531 /* parallel PCI: route INTB, probe again */
532 else {
533 int old_irq;
534
535 switch (socket->dev->device) {
536 case PCI_DEVICE_ID_TI_1250:
537 /* the 1250 has one pin for IRQSER/INTB depending on devctl */
538 break;
539
540 case PCI_DEVICE_ID_TI_1251A:
541 case PCI_DEVICE_ID_TI_1251B:
542 case PCI_DEVICE_ID_TI_1450:
543 /*
544 * those have a pin for IRQSER/INTB plus INTB in MFUNC0
545 * we alread probed the shared pin, now go for MFUNC0
546 */
547 mfunc = (mfunc & ~TI122X_MFUNC0_MASK) | TI125X_MFUNC0_INTB;
548 break;
549
550 default:
551 mfunc = (mfunc & ~TI122X_MFUNC1_MASK) | TI122X_MFUNC1_INTB;
552 break;
553 }
554
555 /* write, probe */
556 if (mfunc != mfunc_old) {
557 config_writel(socket, TI122X_MFUNC, mfunc);
558
559 pci_irq_status = yenta_probe_cb_irq(socket);
560 if (pci_irq_status == 1) {
561 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts ok\n",
562 pci_name(socket->dev));
563 goto out;
564 }
565
566 mfunc = mfunc_old;
567 config_writel(socket, TI122X_MFUNC, mfunc);
568
569 if (pci_irq_status == -1)
570 goto out;
571 }
572
573 /* still nothing: set INTRTIE */
574 if (ti12xx_tie_interrupts(socket, &old_irq)) {
575 pci_irq_status = yenta_probe_cb_irq(socket);
576 if (pci_irq_status == 1) {
577 printk(KERN_INFO "Yenta TI: socket %s parallel PCI interrupts, tied ok\n",
578 pci_name(socket->dev));
579 goto out;
580 }
581
582 ti12xx_untie_interrupts(socket, old_irq);
583 }
584 }
585
586out:
587 if (pci_irq_status < 1) {
588 socket->cb_irq = 0;
589 printk(KERN_INFO "Yenta TI: socket %s no PCI interrupts. Fish. Please report.\n",
590 pci_name(socket->dev));
591 }
592}
593
594static int ti12xx_override(struct yenta_socket *socket)
595{
596 u32 val, val_orig;
597
598 /* make sure that memory burst is active */
599 val_orig = val = config_readl(socket, TI113X_SYSTEM_CONTROL);
600 if (disable_clkrun && PCI_FUNC(socket->dev->devfn) == 0) {
601 printk(KERN_INFO "Yenta: Disabling CLKRUN feature\n");
602 val |= TI113X_SCR_KEEPCLK;
603 }
604 if (!(val & TI122X_SCR_MRBURSTUP)) {
605 printk(KERN_INFO "Yenta: Enabling burst memory read transactions\n");
606 val |= TI122X_SCR_MRBURSTUP;
607 }
608 if (val_orig != val)
609 config_writel(socket, TI113X_SYSTEM_CONTROL, val);
610
611 /*
612 * for EnE bridges only: clear testbit TLTEnable. this makes the
613 * RME Hammerfall DSP sound card working.
614 */
615 if (socket->dev->vendor == PCI_VENDOR_ID_ENE) {
616 u8 test_c9 = config_readb(socket, ENE_TEST_C9);
617 test_c9 &= ~ENE_TEST_C9_TLTENABLE;
618 config_writeb(socket, ENE_TEST_C9, test_c9);
619 }
620
621 /*
622 * Yenta expects controllers to use CSCINT to route
623 * CSC interrupts to PCI rather than INTVAL.
624 */
625 val = config_readb(socket, TI1250_DIAGNOSTIC);
626 printk(KERN_INFO "Yenta: Using %s to route CSC interrupts to PCI\n",
627 (val & TI1250_DIAG_PCI_CSC) ? "CSCINT" : "INTVAL");
628 printk(KERN_INFO "Yenta: Routing CardBus interrupts to %s\n",
629 (val & TI1250_DIAG_PCI_IREQ) ? "PCI" : "ISA");
630
631 /* do irqrouting, depending on function */
632 if (PCI_FUNC(socket->dev->devfn) == 0)
633 ti12xx_irqroute_func0(socket);
634 else
635 ti12xx_irqroute_func1(socket);
636
637 return ti_override(socket);
638}
639
640
641static int ti1250_override(struct yenta_socket *socket)
642{
643 u8 old, diag;
644
645 old = config_readb(socket, TI1250_DIAGNOSTIC);
646 diag = old & ~(TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ);
647 if (socket->cb_irq)
648 diag |= TI1250_DIAG_PCI_CSC | TI1250_DIAG_PCI_IREQ;
649
650 if (diag != old) {
651 printk(KERN_INFO "Yenta: adjusting diagnostic: %02x -> %02x\n",
652 old, diag);
653 config_writeb(socket, TI1250_DIAGNOSTIC, diag);
654 }
655
656 return ti12xx_override(socket);
657}
658
659#endif /* CONFIG_CARDBUS */
660
661#endif /* _LINUX_TI113X_H */
662
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-03 15:29:24 -0500