1/*-
2 * Copyright (C) 2002 Benno Rice.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD: head/sys/powerpc/powermac/uninorth.c 172394 2007-09-30 11:05:18Z marius $
26 */
27
28#include <sys/param.h>
29#include <sys/systm.h>
30#include <sys/module.h>
31#include <sys/bus.h>
32#include <sys/conf.h>
33#include <sys/kernel.h>
34
35#include <dev/ofw/openfirm.h>
36#include <dev/ofw/ofw_pci.h>
37
38#include <dev/pci/pcivar.h>
39#include <dev/pci/pcireg.h>
40
41#include <machine/bus.h>
42#include <machine/md_var.h>
43#include <machine/nexusvar.h>
44#include <machine/resource.h>
45
46#include <sys/rman.h>
47
48#include <powerpc/ofw/ofw_pci.h>
49#include <powerpc/powermac/uninorthvar.h>
50
51#include <vm/vm.h>
52#include <vm/pmap.h>
53
54#include "pcib_if.h"
55
56#define UNINORTH_DEBUG 0
57
58/*
59 * Device interface.
60 */
61static int uninorth_probe(device_t);
62static int uninorth_attach(device_t);
63
64/*
65 * Bus interface.
66 */
67static int uninorth_read_ivar(device_t, device_t, int,
68 uintptr_t *);
69static struct resource * uninorth_alloc_resource(device_t bus,
70 device_t child, int type, int *rid, u_long start,
71 u_long end, u_long count, u_int flags);
72static int uninorth_activate_resource(device_t bus, device_t child,
73 int type, int rid, struct resource *res);
74
75/*
76 * pcib interface.
77 */
78static int uninorth_maxslots(device_t);
79static u_int32_t uninorth_read_config(device_t, u_int, u_int, u_int,
80 u_int, int);
81static void uninorth_write_config(device_t, u_int, u_int, u_int,
82 u_int, u_int32_t, int);
83static int uninorth_route_interrupt(device_t, device_t, int);
84
85/*
86 * Local routines.
87 */
88static int uninorth_enable_config(struct uninorth_softc *, u_int,
89 u_int, u_int, u_int);
90static void unin_enable_gmac(void);
91
92/*
93 * Driver methods.
94 */
95static device_method_t uninorth_methods[] = {
96 /* Device interface */
97 DEVMETHOD(device_probe, uninorth_probe),
98 DEVMETHOD(device_attach, uninorth_attach),
99
100 /* Bus interface */
101 DEVMETHOD(bus_print_child, bus_generic_print_child),
102 DEVMETHOD(bus_read_ivar, uninorth_read_ivar),
103 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
104 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
105 DEVMETHOD(bus_alloc_resource, uninorth_alloc_resource),
106 DEVMETHOD(bus_activate_resource, uninorth_activate_resource),
107
108 /* pcib interface */
109 DEVMETHOD(pcib_maxslots, uninorth_maxslots),
110 DEVMETHOD(pcib_read_config, uninorth_read_config),
111 DEVMETHOD(pcib_write_config, uninorth_write_config),
112 DEVMETHOD(pcib_route_interrupt, uninorth_route_interrupt),
113
114 { 0, 0 }
115};
116
117static driver_t uninorth_driver = {
118 "pcib",
119 uninorth_methods,
120 sizeof(struct uninorth_softc)
121};
122
123static devclass_t uninorth_devclass;
124
125DRIVER_MODULE(uninorth, nexus, uninorth_driver, uninorth_devclass, 0, 0);
126
127static int
128uninorth_probe(device_t dev)
129{
130 char *type, *compatible;
131
132 type = nexus_get_device_type(dev);
133 compatible = nexus_get_compatible(dev);
134
135 if (type == NULL || compatible == NULL)
136 return (ENXIO);
137
138 if (strcmp(type, "pci") != 0 || strcmp(compatible, "uni-north") != 0)
139 return (ENXIO);
140
141 device_set_desc(dev, "Apple UniNorth Host-PCI bridge");
142 return (0);
143}
144
145static int
146uninorth_attach(device_t dev)
147{
148 struct uninorth_softc *sc;
149 phandle_t node;
150 phandle_t child;
151 u_int32_t reg[2], busrange[2];
152 struct uninorth_range *rp, *io, *mem[2];
153 int nmem, i;
154
155 node = nexus_get_node(dev);
156 sc = device_get_softc(dev);
157
158 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
159 return (ENXIO);
160
161 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8)
162 return (ENXIO);
163
164 sc->sc_dev = dev;
165 sc->sc_node = node;
166 sc->sc_addr = (vm_offset_t)pmap_mapdev(reg[0] + 0x800000, PAGE_SIZE);
167 sc->sc_data = (vm_offset_t)pmap_mapdev(reg[0] + 0xc00000, PAGE_SIZE);
168 sc->sc_bus = busrange[0];
169
170 bzero(sc->sc_range, sizeof(sc->sc_range));
171 sc->sc_nrange = OF_getprop(node, "ranges", sc->sc_range,
172 sizeof(sc->sc_range));
173
174 if (sc->sc_nrange == -1) {
175 device_printf(dev, "could not get ranges\n");
176 return (ENXIO);
177 }
178
179 sc->sc_range[6].pci_hi = 0;
180 io = NULL;
181 nmem = 0;
182
183 for (rp = sc->sc_range; rp->pci_hi != 0; rp++) {
184 switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) {
185 case OFW_PCI_PHYS_HI_SPACE_CONFIG:
186 break;
187 case OFW_PCI_PHYS_HI_SPACE_IO:
188 io = rp;
189 break;
190 case OFW_PCI_PHYS_HI_SPACE_MEM32:
191 mem[nmem] = rp;
192 nmem++;
193 break;
194 case OFW_PCI_PHYS_HI_SPACE_MEM64:
195 break;
196 }
197 }
198
199 if (io == NULL) {
200 device_printf(dev, "can't find io range\n");
201 return (ENXIO);
202 }
203 sc->sc_io_rman.rm_type = RMAN_ARRAY;
204 sc->sc_io_rman.rm_descr = "UniNorth PCI I/O Ports";
205 sc->sc_iostart = io->host;
206 if (rman_init(&sc->sc_io_rman) != 0 ||
207 rman_manage_region(&sc->sc_io_rman, io->pci_lo,
208 io->pci_lo + io->size_lo - 1) != 0) {
209 device_printf(dev, "failed to set up io range management\n");
210 return (ENXIO);
211 }
212
213 if (nmem == 0) {
214 device_printf(dev, "can't find mem ranges\n");
215 return (ENXIO);
216 }
217 sc->sc_mem_rman.rm_type = RMAN_ARRAY;
218 sc->sc_mem_rman.rm_descr = "UniNorth PCI Memory";
219 if (rman_init(&sc->sc_mem_rman) != 0) {
220 device_printf(dev,
221 "failed to init mem range resources\n");
222 return (ENXIO);
223 }
224 for (i = 0; i < nmem; i++) {
225 if (rman_manage_region(&sc->sc_mem_rman, mem[i]->pci_lo,
226 mem[i]->pci_lo + mem[i]->size_lo - 1) != 0) {
227 device_printf(dev,
228 "failed to set up memory range management\n");
229 return (ENXIO);
230 }
231 }
232
233 /*
234 * Enable the GMAC Ethernet cell if Open Firmware says it is
235 * used.
236 */
237 for (child = OF_child(node); child; child = OF_peer(child)) {
238 char compat[32];
239
240 memset(compat, 0, sizeof(compat));
241 OF_getprop(child, "compatible", compat, sizeof(compat));
242 if (strcmp(compat, "gmac") == 0) {
243 unin_enable_gmac();
244 }
245 }
246
247 /*
248 * Write out the correct PIC interrupt values to config space
249 * of all devices on the bus. This has to be done after the GEM
250 * cell is enabled above.
251 */
252 ofw_pci_fixup(dev, sc->sc_bus, node);
253
254 device_add_child(dev, "pci", device_get_unit(dev));
255 return (bus_generic_attach(dev));
256}
257
258static int
259uninorth_maxslots(device_t dev)
260{
261
262 return (PCI_SLOTMAX);
263}
264
265static u_int32_t
266uninorth_read_config(device_t dev, u_int bus, u_int slot, u_int func, u_int reg,
267 int width)
268{
269 struct uninorth_softc *sc;
270 vm_offset_t caoff;
271
272 sc = device_get_softc(dev);
273 caoff = sc->sc_data + (reg & 0x07);
274
275 if (uninorth_enable_config(sc, bus, slot, func, reg) != 0) {
276 switch (width) {
277 case 1:
278 return (in8rb(caoff));
279 break;
280 case 2:
281 return (in16rb(caoff));
282 break;
283 case 4:
284 return (in32rb(caoff));
285 break;
286 }
287 }
288
289 return (0xffffffff);
290}
291
292static void
293uninorth_write_config(device_t dev, u_int bus, u_int slot, u_int func,
294 u_int reg, u_int32_t val, int width)
295{
296 struct uninorth_softc *sc;
297 vm_offset_t caoff;
298
299 sc = device_get_softc(dev);
300 caoff = sc->sc_data + (reg & 0x07);
301
302 if (uninorth_enable_config(sc, bus, slot, func, reg)) {
303 switch (width) {
304 case 1:
305 out8rb(caoff, val);
306 break;
307 case 2:
308 out16rb(caoff, val);
309 break;
310 case 4:
311 out32rb(caoff, val);
312 break;
313 }
314 }
315}
316
317static int
318uninorth_route_interrupt(device_t bus, device_t dev, int pin)
319{
320
321 return (0);
322}
323
324static int
325uninorth_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
326{
327 struct uninorth_softc *sc;
328
329 sc = device_get_softc(dev);
330
331 switch (which) {
332 case PCIB_IVAR_DOMAIN:
333 *result = device_get_unit(dev);
334 return (0);
335 case PCIB_IVAR_BUS:
336 *result = sc->sc_bus;
337 return (0);
338 }
339
340 return (ENOENT);
341}
342
343static struct resource *
344uninorth_alloc_resource(device_t bus, device_t child, int type, int *rid,
345 u_long start, u_long end, u_long count, u_int flags)
346{
347 struct uninorth_softc *sc;
348 struct resource *rv;
349 struct rman *rm;
350 bus_space_tag_t bt;
351 int needactivate;
352
353 needactivate = flags & RF_ACTIVE;
354 flags &= ~RF_ACTIVE;
355
356 sc = device_get_softc(bus);
357
358 switch (type) {
359 case SYS_RES_MEMORY:
360 rm = &sc->sc_mem_rman;
361 bt = PPC_BUS_SPACE_MEM;
362 break;
363
364 case SYS_RES_IOPORT:
365 rm = &sc->sc_io_rman;
366 bt = PPC_BUS_SPACE_IO;
367 break;
368
369 case SYS_RES_IRQ:
370 return (bus_alloc_resource(bus, type, rid, start, end, count,
371 flags));
372 break;
373 default:
374 device_printf(bus, "unknown resource request from %s\n",
375 device_get_nameunit(child));
376 return (NULL);
377 }
378
379 rv = rman_reserve_resource(rm, start, end, count, flags, child);
380 if (rv == NULL) {
381 device_printf(bus, "failed to reserve resource for %s\n",
382 device_get_nameunit(child));
383 return (NULL);
384 }
385
386 rman_set_rid(rv, *rid);
387 rman_set_bustag(rv, bt);
388 rman_set_bushandle(rv, rman_get_start(rv));
389
390 if (needactivate) {
391 if (bus_activate_resource(child, type, *rid, rv) != 0) {
392 device_printf(bus,
393 "failed to activate resource for %s\n",
394 device_get_nameunit(child));
395 rman_release_resource(rv);
396 return (NULL);
397 }
398 }
399
400 return (rv);
401}
402
403static int
404uninorth_activate_resource(device_t bus, device_t child, int type, int rid,
405 struct resource *res)
406{
407 void *p;
408 struct uninorth_softc *sc;
409
410 sc = device_get_softc(bus);
411
412 if (type == SYS_RES_IRQ)
413 return (bus_activate_resource(bus, type, rid, res));
414
415 if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
416 vm_offset_t start;
417
418 start = (vm_offset_t)rman_get_start(res);
419 /*
420 * For i/o-ports, convert the start address to the
421 * uninorth PCI i/o window
422 */
423 if (type == SYS_RES_IOPORT)
424 start += sc->sc_iostart;
425
426 if (bootverbose)
427 printf("uninorth mapdev: start %x, len %ld\n", start,
428 rman_get_size(res));
429
430 p = pmap_mapdev(start, (vm_size_t)rman_get_size(res));
431 if (p == NULL)
432 return (ENOMEM);
433 rman_set_virtual(res, p);
434 rman_set_bushandle(res, (u_long)p);
435 }
436
437 return (rman_activate_resource(res));
438}
439
440static int
441uninorth_enable_config(struct uninorth_softc *sc, u_int bus, u_int slot,
442 u_int func, u_int reg)
443{
444 uint32_t cfgval;
445 uint32_t pass;
446
447 if (resource_int_value(device_get_name(sc->sc_dev),
448 device_get_unit(sc->sc_dev), "skipslot", &pass) == 0) {
449 if (pass == slot)
450 return (0);
451 }
452
453 if (sc->sc_bus == bus) {
454 /*
455 * No slots less than 11 on the primary bus
456 */
457 if (slot < 11)
458 return (0);
459
460 cfgval = (1 << slot) | (func << 8) | (reg & 0xfc);
461 } else {
462 cfgval = (bus << 16) | (slot << 11) | (func << 8) |
463 (reg & 0xfc) | 1;
464 }
465
466 do {
467 out32rb(sc->sc_addr, cfgval);
468 } while (in32rb(sc->sc_addr) != cfgval);
469
470 return (1);
471}
472
473/*
474 * Driver to swallow UniNorth host bridges from the PCI bus side.
475 */
476static int
477unhb_probe(device_t dev)
478{
479
480 if (pci_get_class(dev) == PCIC_BRIDGE &&
481 pci_get_subclass(dev) == PCIS_BRIDGE_HOST) {
482 device_set_desc(dev, "Host to PCI bridge");
483 device_quiet(dev);
484 return (-10000);
485 }
486
487 return (ENXIO);
488}
489
490static int
491unhb_attach(device_t dev)
492{
493
494 return (0);
495}
496
497static device_method_t unhb_methods[] = {
498 /* Device interface */
499 DEVMETHOD(device_probe, unhb_probe),
500 DEVMETHOD(device_attach, unhb_attach),
501
502 { 0, 0 }
503};
504
505static driver_t unhb_driver = {
506 "unhb",
507 unhb_methods,
508 1,
509};
510static devclass_t unhb_devclass;
511
512DRIVER_MODULE(unhb, pci, unhb_driver, unhb_devclass, 0, 0);
513
514
515/*
516 * Small stub driver for the Uninorth chip itself, to allow setting
517 * of various parameters and cell enables
518 */
519static struct unin_chip_softc *uncsc;
520
521static void
522unin_enable_gmac(void)
523{
524 volatile u_int *clkreg;
525 u_int32_t tmpl;
526
527 if (uncsc == NULL)
528 panic("unin_enable_gmac: device not found");
529
530 clkreg = (void *)(uncsc->sc_addr + UNIN_CLOCKCNTL);
531 tmpl = inl(clkreg);
532 tmpl |= UNIN_CLOCKCNTL_GMAC;
533 outl(clkreg, tmpl);
534}
535
536static int
537unin_chip_probe(device_t dev)
538{
539 char *name;
540
541 name = nexus_get_name(dev);
542
543 if (name == NULL)
544 return (ENXIO);
545
546 if (strcmp(name, "uni-n") != 0)
547 return (ENXIO);
548
549 device_set_desc(dev, "Apple UniNorth System Controller");
550 return (0);
551}
552
553static int
554unin_chip_attach(device_t dev)
555{
556 phandle_t node;
557 u_int reg[2];
558
559 uncsc = device_get_softc(dev);
560 node = nexus_get_node(dev);
561
562 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
563 return (ENXIO);
564
565 uncsc->sc_physaddr = reg[0];
566 uncsc->sc_size = reg[1];
567
568 /*
569 * Only map the first page, since that is where the registers
570 * of interest lie.
571 */
572 uncsc->sc_addr = (vm_offset_t) pmap_mapdev(reg[0], PAGE_SIZE);
573
574 uncsc->sc_version = *(u_int *)uncsc->sc_addr;
575 device_printf(dev, "Version %d\n", uncsc->sc_version);
576
577 return (0);
578}
579
580static device_method_t unin_chip_methods[] = {
581 /* Device interface */
582 DEVMETHOD(device_probe, unin_chip_probe),
583 DEVMETHOD(device_attach, unin_chip_attach),
584
585 { 0, 0 }
586};
587
588static driver_t unin_chip_driver = {
589 "unin",
590 unin_chip_methods,
591 sizeof(struct unin_chip_softc)
592};
593
594static devclass_t unin_chip_devclass;
595
596DRIVER_MODULE(unin, nexus, unin_chip_driver, unin_chip_devclass, 0, 0);
597
598
599
600
2 * Copyright (C) 2002 Benno Rice.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD: head/sys/powerpc/powermac/uninorth.c 172394 2007-09-30 11:05:18Z marius $
26 */
27
28#include <sys/param.h>
29#include <sys/systm.h>
30#include <sys/module.h>
31#include <sys/bus.h>
32#include <sys/conf.h>
33#include <sys/kernel.h>
34
35#include <dev/ofw/openfirm.h>
36#include <dev/ofw/ofw_pci.h>
37
38#include <dev/pci/pcivar.h>
39#include <dev/pci/pcireg.h>
40
41#include <machine/bus.h>
42#include <machine/md_var.h>
43#include <machine/nexusvar.h>
44#include <machine/resource.h>
45
46#include <sys/rman.h>
47
48#include <powerpc/ofw/ofw_pci.h>
49#include <powerpc/powermac/uninorthvar.h>
50
51#include <vm/vm.h>
52#include <vm/pmap.h>
53
54#include "pcib_if.h"
55
56#define UNINORTH_DEBUG 0
57
58/*
59 * Device interface.
60 */
61static int uninorth_probe(device_t);
62static int uninorth_attach(device_t);
63
64/*
65 * Bus interface.
66 */
67static int uninorth_read_ivar(device_t, device_t, int,
68 uintptr_t *);
69static struct resource * uninorth_alloc_resource(device_t bus,
70 device_t child, int type, int *rid, u_long start,
71 u_long end, u_long count, u_int flags);
72static int uninorth_activate_resource(device_t bus, device_t child,
73 int type, int rid, struct resource *res);
74
75/*
76 * pcib interface.
77 */
78static int uninorth_maxslots(device_t);
79static u_int32_t uninorth_read_config(device_t, u_int, u_int, u_int,
80 u_int, int);
81static void uninorth_write_config(device_t, u_int, u_int, u_int,
82 u_int, u_int32_t, int);
83static int uninorth_route_interrupt(device_t, device_t, int);
84
85/*
86 * Local routines.
87 */
88static int uninorth_enable_config(struct uninorth_softc *, u_int,
89 u_int, u_int, u_int);
90static void unin_enable_gmac(void);
91
92/*
93 * Driver methods.
94 */
95static device_method_t uninorth_methods[] = {
96 /* Device interface */
97 DEVMETHOD(device_probe, uninorth_probe),
98 DEVMETHOD(device_attach, uninorth_attach),
99
100 /* Bus interface */
101 DEVMETHOD(bus_print_child, bus_generic_print_child),
102 DEVMETHOD(bus_read_ivar, uninorth_read_ivar),
103 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
104 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
105 DEVMETHOD(bus_alloc_resource, uninorth_alloc_resource),
106 DEVMETHOD(bus_activate_resource, uninorth_activate_resource),
107
108 /* pcib interface */
109 DEVMETHOD(pcib_maxslots, uninorth_maxslots),
110 DEVMETHOD(pcib_read_config, uninorth_read_config),
111 DEVMETHOD(pcib_write_config, uninorth_write_config),
112 DEVMETHOD(pcib_route_interrupt, uninorth_route_interrupt),
113
114 { 0, 0 }
115};
116
117static driver_t uninorth_driver = {
118 "pcib",
119 uninorth_methods,
120 sizeof(struct uninorth_softc)
121};
122
123static devclass_t uninorth_devclass;
124
125DRIVER_MODULE(uninorth, nexus, uninorth_driver, uninorth_devclass, 0, 0);
126
127static int
128uninorth_probe(device_t dev)
129{
130 char *type, *compatible;
131
132 type = nexus_get_device_type(dev);
133 compatible = nexus_get_compatible(dev);
134
135 if (type == NULL || compatible == NULL)
136 return (ENXIO);
137
138 if (strcmp(type, "pci") != 0 || strcmp(compatible, "uni-north") != 0)
139 return (ENXIO);
140
141 device_set_desc(dev, "Apple UniNorth Host-PCI bridge");
142 return (0);
143}
144
145static int
146uninorth_attach(device_t dev)
147{
148 struct uninorth_softc *sc;
149 phandle_t node;
150 phandle_t child;
151 u_int32_t reg[2], busrange[2];
152 struct uninorth_range *rp, *io, *mem[2];
153 int nmem, i;
154
155 node = nexus_get_node(dev);
156 sc = device_get_softc(dev);
157
158 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
159 return (ENXIO);
160
161 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8)
162 return (ENXIO);
163
164 sc->sc_dev = dev;
165 sc->sc_node = node;
166 sc->sc_addr = (vm_offset_t)pmap_mapdev(reg[0] + 0x800000, PAGE_SIZE);
167 sc->sc_data = (vm_offset_t)pmap_mapdev(reg[0] + 0xc00000, PAGE_SIZE);
168 sc->sc_bus = busrange[0];
169
170 bzero(sc->sc_range, sizeof(sc->sc_range));
171 sc->sc_nrange = OF_getprop(node, "ranges", sc->sc_range,
172 sizeof(sc->sc_range));
173
174 if (sc->sc_nrange == -1) {
175 device_printf(dev, "could not get ranges\n");
176 return (ENXIO);
177 }
178
179 sc->sc_range[6].pci_hi = 0;
180 io = NULL;
181 nmem = 0;
182
183 for (rp = sc->sc_range; rp->pci_hi != 0; rp++) {
184 switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) {
185 case OFW_PCI_PHYS_HI_SPACE_CONFIG:
186 break;
187 case OFW_PCI_PHYS_HI_SPACE_IO:
188 io = rp;
189 break;
190 case OFW_PCI_PHYS_HI_SPACE_MEM32:
191 mem[nmem] = rp;
192 nmem++;
193 break;
194 case OFW_PCI_PHYS_HI_SPACE_MEM64:
195 break;
196 }
197 }
198
199 if (io == NULL) {
200 device_printf(dev, "can't find io range\n");
201 return (ENXIO);
202 }
203 sc->sc_io_rman.rm_type = RMAN_ARRAY;
204 sc->sc_io_rman.rm_descr = "UniNorth PCI I/O Ports";
205 sc->sc_iostart = io->host;
206 if (rman_init(&sc->sc_io_rman) != 0 ||
207 rman_manage_region(&sc->sc_io_rman, io->pci_lo,
208 io->pci_lo + io->size_lo - 1) != 0) {
209 device_printf(dev, "failed to set up io range management\n");
210 return (ENXIO);
211 }
212
213 if (nmem == 0) {
214 device_printf(dev, "can't find mem ranges\n");
215 return (ENXIO);
216 }
217 sc->sc_mem_rman.rm_type = RMAN_ARRAY;
218 sc->sc_mem_rman.rm_descr = "UniNorth PCI Memory";
219 if (rman_init(&sc->sc_mem_rman) != 0) {
220 device_printf(dev,
221 "failed to init mem range resources\n");
222 return (ENXIO);
223 }
224 for (i = 0; i < nmem; i++) {
225 if (rman_manage_region(&sc->sc_mem_rman, mem[i]->pci_lo,
226 mem[i]->pci_lo + mem[i]->size_lo - 1) != 0) {
227 device_printf(dev,
228 "failed to set up memory range management\n");
229 return (ENXIO);
230 }
231 }
232
233 /*
234 * Enable the GMAC Ethernet cell if Open Firmware says it is
235 * used.
236 */
237 for (child = OF_child(node); child; child = OF_peer(child)) {
238 char compat[32];
239
240 memset(compat, 0, sizeof(compat));
241 OF_getprop(child, "compatible", compat, sizeof(compat));
242 if (strcmp(compat, "gmac") == 0) {
243 unin_enable_gmac();
244 }
245 }
246
247 /*
248 * Write out the correct PIC interrupt values to config space
249 * of all devices on the bus. This has to be done after the GEM
250 * cell is enabled above.
251 */
252 ofw_pci_fixup(dev, sc->sc_bus, node);
253
254 device_add_child(dev, "pci", device_get_unit(dev));
255 return (bus_generic_attach(dev));
256}
257
258static int
259uninorth_maxslots(device_t dev)
260{
261
262 return (PCI_SLOTMAX);
263}
264
265static u_int32_t
266uninorth_read_config(device_t dev, u_int bus, u_int slot, u_int func, u_int reg,
267 int width)
268{
269 struct uninorth_softc *sc;
270 vm_offset_t caoff;
271
272 sc = device_get_softc(dev);
273 caoff = sc->sc_data + (reg & 0x07);
274
275 if (uninorth_enable_config(sc, bus, slot, func, reg) != 0) {
276 switch (width) {
277 case 1:
278 return (in8rb(caoff));
279 break;
280 case 2:
281 return (in16rb(caoff));
282 break;
283 case 4:
284 return (in32rb(caoff));
285 break;
286 }
287 }
288
289 return (0xffffffff);
290}
291
292static void
293uninorth_write_config(device_t dev, u_int bus, u_int slot, u_int func,
294 u_int reg, u_int32_t val, int width)
295{
296 struct uninorth_softc *sc;
297 vm_offset_t caoff;
298
299 sc = device_get_softc(dev);
300 caoff = sc->sc_data + (reg & 0x07);
301
302 if (uninorth_enable_config(sc, bus, slot, func, reg)) {
303 switch (width) {
304 case 1:
305 out8rb(caoff, val);
306 break;
307 case 2:
308 out16rb(caoff, val);
309 break;
310 case 4:
311 out32rb(caoff, val);
312 break;
313 }
314 }
315}
316
317static int
318uninorth_route_interrupt(device_t bus, device_t dev, int pin)
319{
320
321 return (0);
322}
323
324static int
325uninorth_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
326{
327 struct uninorth_softc *sc;
328
329 sc = device_get_softc(dev);
330
331 switch (which) {
332 case PCIB_IVAR_DOMAIN:
333 *result = device_get_unit(dev);
334 return (0);
335 case PCIB_IVAR_BUS:
336 *result = sc->sc_bus;
337 return (0);
338 }
339
340 return (ENOENT);
341}
342
343static struct resource *
344uninorth_alloc_resource(device_t bus, device_t child, int type, int *rid,
345 u_long start, u_long end, u_long count, u_int flags)
346{
347 struct uninorth_softc *sc;
348 struct resource *rv;
349 struct rman *rm;
350 bus_space_tag_t bt;
351 int needactivate;
352
353 needactivate = flags & RF_ACTIVE;
354 flags &= ~RF_ACTIVE;
355
356 sc = device_get_softc(bus);
357
358 switch (type) {
359 case SYS_RES_MEMORY:
360 rm = &sc->sc_mem_rman;
361 bt = PPC_BUS_SPACE_MEM;
362 break;
363
364 case SYS_RES_IOPORT:
365 rm = &sc->sc_io_rman;
366 bt = PPC_BUS_SPACE_IO;
367 break;
368
369 case SYS_RES_IRQ:
370 return (bus_alloc_resource(bus, type, rid, start, end, count,
371 flags));
372 break;
373 default:
374 device_printf(bus, "unknown resource request from %s\n",
375 device_get_nameunit(child));
376 return (NULL);
377 }
378
379 rv = rman_reserve_resource(rm, start, end, count, flags, child);
380 if (rv == NULL) {
381 device_printf(bus, "failed to reserve resource for %s\n",
382 device_get_nameunit(child));
383 return (NULL);
384 }
385
386 rman_set_rid(rv, *rid);
387 rman_set_bustag(rv, bt);
388 rman_set_bushandle(rv, rman_get_start(rv));
389
390 if (needactivate) {
391 if (bus_activate_resource(child, type, *rid, rv) != 0) {
392 device_printf(bus,
393 "failed to activate resource for %s\n",
394 device_get_nameunit(child));
395 rman_release_resource(rv);
396 return (NULL);
397 }
398 }
399
400 return (rv);
401}
402
403static int
404uninorth_activate_resource(device_t bus, device_t child, int type, int rid,
405 struct resource *res)
406{
407 void *p;
408 struct uninorth_softc *sc;
409
410 sc = device_get_softc(bus);
411
412 if (type == SYS_RES_IRQ)
413 return (bus_activate_resource(bus, type, rid, res));
414
415 if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) {
416 vm_offset_t start;
417
418 start = (vm_offset_t)rman_get_start(res);
419 /*
420 * For i/o-ports, convert the start address to the
421 * uninorth PCI i/o window
422 */
423 if (type == SYS_RES_IOPORT)
424 start += sc->sc_iostart;
425
426 if (bootverbose)
427 printf("uninorth mapdev: start %x, len %ld\n", start,
428 rman_get_size(res));
429
430 p = pmap_mapdev(start, (vm_size_t)rman_get_size(res));
431 if (p == NULL)
432 return (ENOMEM);
433 rman_set_virtual(res, p);
434 rman_set_bushandle(res, (u_long)p);
435 }
436
437 return (rman_activate_resource(res));
438}
439
440static int
441uninorth_enable_config(struct uninorth_softc *sc, u_int bus, u_int slot,
442 u_int func, u_int reg)
443{
444 uint32_t cfgval;
445 uint32_t pass;
446
447 if (resource_int_value(device_get_name(sc->sc_dev),
448 device_get_unit(sc->sc_dev), "skipslot", &pass) == 0) {
449 if (pass == slot)
450 return (0);
451 }
452
453 if (sc->sc_bus == bus) {
454 /*
455 * No slots less than 11 on the primary bus
456 */
457 if (slot < 11)
458 return (0);
459
460 cfgval = (1 << slot) | (func << 8) | (reg & 0xfc);
461 } else {
462 cfgval = (bus << 16) | (slot << 11) | (func << 8) |
463 (reg & 0xfc) | 1;
464 }
465
466 do {
467 out32rb(sc->sc_addr, cfgval);
468 } while (in32rb(sc->sc_addr) != cfgval);
469
470 return (1);
471}
472
473/*
474 * Driver to swallow UniNorth host bridges from the PCI bus side.
475 */
476static int
477unhb_probe(device_t dev)
478{
479
480 if (pci_get_class(dev) == PCIC_BRIDGE &&
481 pci_get_subclass(dev) == PCIS_BRIDGE_HOST) {
482 device_set_desc(dev, "Host to PCI bridge");
483 device_quiet(dev);
484 return (-10000);
485 }
486
487 return (ENXIO);
488}
489
490static int
491unhb_attach(device_t dev)
492{
493
494 return (0);
495}
496
497static device_method_t unhb_methods[] = {
498 /* Device interface */
499 DEVMETHOD(device_probe, unhb_probe),
500 DEVMETHOD(device_attach, unhb_attach),
501
502 { 0, 0 }
503};
504
505static driver_t unhb_driver = {
506 "unhb",
507 unhb_methods,
508 1,
509};
510static devclass_t unhb_devclass;
511
512DRIVER_MODULE(unhb, pci, unhb_driver, unhb_devclass, 0, 0);
513
514
515/*
516 * Small stub driver for the Uninorth chip itself, to allow setting
517 * of various parameters and cell enables
518 */
519static struct unin_chip_softc *uncsc;
520
521static void
522unin_enable_gmac(void)
523{
524 volatile u_int *clkreg;
525 u_int32_t tmpl;
526
527 if (uncsc == NULL)
528 panic("unin_enable_gmac: device not found");
529
530 clkreg = (void *)(uncsc->sc_addr + UNIN_CLOCKCNTL);
531 tmpl = inl(clkreg);
532 tmpl |= UNIN_CLOCKCNTL_GMAC;
533 outl(clkreg, tmpl);
534}
535
536static int
537unin_chip_probe(device_t dev)
538{
539 char *name;
540
541 name = nexus_get_name(dev);
542
543 if (name == NULL)
544 return (ENXIO);
545
546 if (strcmp(name, "uni-n") != 0)
547 return (ENXIO);
548
549 device_set_desc(dev, "Apple UniNorth System Controller");
550 return (0);
551}
552
553static int
554unin_chip_attach(device_t dev)
555{
556 phandle_t node;
557 u_int reg[2];
558
559 uncsc = device_get_softc(dev);
560 node = nexus_get_node(dev);
561
562 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8)
563 return (ENXIO);
564
565 uncsc->sc_physaddr = reg[0];
566 uncsc->sc_size = reg[1];
567
568 /*
569 * Only map the first page, since that is where the registers
570 * of interest lie.
571 */
572 uncsc->sc_addr = (vm_offset_t) pmap_mapdev(reg[0], PAGE_SIZE);
573
574 uncsc->sc_version = *(u_int *)uncsc->sc_addr;
575 device_printf(dev, "Version %d\n", uncsc->sc_version);
576
577 return (0);
578}
579
580static device_method_t unin_chip_methods[] = {
581 /* Device interface */
582 DEVMETHOD(device_probe, unin_chip_probe),
583 DEVMETHOD(device_attach, unin_chip_attach),
584
585 { 0, 0 }
586};
587
588static driver_t unin_chip_driver = {
589 "unin",
590 unin_chip_methods,
591 sizeof(struct unin_chip_softc)
592};
593
594static devclass_t unin_chip_devclass;
595
596DRIVER_MODULE(unin, nexus, unin_chip_driver, unin_chip_devclass, 0, 0);
597
598
599
600