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-rw-r--r--arch/sparc64/kernel/prom.c757
1 files changed, 755 insertions, 2 deletions
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 6aa856a18157..8a70c52c0447 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -15,6 +15,7 @@
15 * 2 of the License, or (at your option) any later version. 15 * 2 of the License, or (at your option) any later version.
16 */ 16 */
17 17
18#include <linux/config.h>
18#include <linux/kernel.h> 19#include <linux/kernel.h>
19#include <linux/types.h> 20#include <linux/types.h>
20#include <linux/string.h> 21#include <linux/string.h>
@@ -23,7 +24,11 @@
23#include <linux/module.h> 24#include <linux/module.h>
24 25
25#include <asm/prom.h> 26#include <asm/prom.h>
27#include <asm/of_device.h>
26#include <asm/oplib.h> 28#include <asm/oplib.h>
29#include <asm/irq.h>
30#include <asm/asi.h>
31#include <asm/upa.h>
27 32
28static struct device_node *allnodes; 33static struct device_node *allnodes;
29 34
@@ -283,6 +288,754 @@ static void * __init prom_early_alloc(unsigned long size)
283 return ret; 288 return ret;
284} 289}
285 290
291#ifdef CONFIG_PCI
292/* PSYCHO interrupt mapping support. */
293#define PSYCHO_IMAP_A_SLOT0 0x0c00UL
294#define PSYCHO_IMAP_B_SLOT0 0x0c20UL
295static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
296{
297 unsigned int bus = (ino & 0x10) >> 4;
298 unsigned int slot = (ino & 0x0c) >> 2;
299
300 if (bus == 0)
301 return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
302 else
303 return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
304}
305
306#define PSYCHO_IMAP_SCSI 0x1000UL
307#define PSYCHO_IMAP_ETH 0x1008UL
308#define PSYCHO_IMAP_BPP 0x1010UL
309#define PSYCHO_IMAP_AU_REC 0x1018UL
310#define PSYCHO_IMAP_AU_PLAY 0x1020UL
311#define PSYCHO_IMAP_PFAIL 0x1028UL
312#define PSYCHO_IMAP_KMS 0x1030UL
313#define PSYCHO_IMAP_FLPY 0x1038UL
314#define PSYCHO_IMAP_SHW 0x1040UL
315#define PSYCHO_IMAP_KBD 0x1048UL
316#define PSYCHO_IMAP_MS 0x1050UL
317#define PSYCHO_IMAP_SER 0x1058UL
318#define PSYCHO_IMAP_TIM0 0x1060UL
319#define PSYCHO_IMAP_TIM1 0x1068UL
320#define PSYCHO_IMAP_UE 0x1070UL
321#define PSYCHO_IMAP_CE 0x1078UL
322#define PSYCHO_IMAP_A_ERR 0x1080UL
323#define PSYCHO_IMAP_B_ERR 0x1088UL
324#define PSYCHO_IMAP_PMGMT 0x1090UL
325#define PSYCHO_IMAP_GFX 0x1098UL
326#define PSYCHO_IMAP_EUPA 0x10a0UL
327
328static unsigned long __psycho_onboard_imap_off[] = {
329/*0x20*/ PSYCHO_IMAP_SCSI,
330/*0x21*/ PSYCHO_IMAP_ETH,
331/*0x22*/ PSYCHO_IMAP_BPP,
332/*0x23*/ PSYCHO_IMAP_AU_REC,
333/*0x24*/ PSYCHO_IMAP_AU_PLAY,
334/*0x25*/ PSYCHO_IMAP_PFAIL,
335/*0x26*/ PSYCHO_IMAP_KMS,
336/*0x27*/ PSYCHO_IMAP_FLPY,
337/*0x28*/ PSYCHO_IMAP_SHW,
338/*0x29*/ PSYCHO_IMAP_KBD,
339/*0x2a*/ PSYCHO_IMAP_MS,
340/*0x2b*/ PSYCHO_IMAP_SER,
341/*0x2c*/ PSYCHO_IMAP_TIM0,
342/*0x2d*/ PSYCHO_IMAP_TIM1,
343/*0x2e*/ PSYCHO_IMAP_UE,
344/*0x2f*/ PSYCHO_IMAP_CE,
345/*0x30*/ PSYCHO_IMAP_A_ERR,
346/*0x31*/ PSYCHO_IMAP_B_ERR,
347/*0x32*/ PSYCHO_IMAP_PMGMT
348};
349#define PSYCHO_ONBOARD_IRQ_BASE 0x20
350#define PSYCHO_ONBOARD_IRQ_LAST 0x32
351#define psycho_onboard_imap_offset(__ino) \
352 __psycho_onboard_imap_off[(__ino) - PSYCHO_ONBOARD_IRQ_BASE]
353
354#define PSYCHO_ICLR_A_SLOT0 0x1400UL
355#define PSYCHO_ICLR_SCSI 0x1800UL
356
357#define psycho_iclr_offset(ino) \
358 ((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
359 (PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
360
361static unsigned int psycho_irq_build(struct device_node *dp,
362 unsigned int ino,
363 void *_data)
364{
365 unsigned long controller_regs = (unsigned long) _data;
366 unsigned long imap, iclr;
367 unsigned long imap_off, iclr_off;
368 int inofixup = 0;
369
370 ino &= 0x3f;
371 if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
372 /* PCI slot */
373 imap_off = psycho_pcislot_imap_offset(ino);
374 } else {
375 /* Onboard device */
376 if (ino > PSYCHO_ONBOARD_IRQ_LAST) {
377 prom_printf("psycho_irq_build: Wacky INO [%x]\n", ino);
378 prom_halt();
379 }
380 imap_off = psycho_onboard_imap_offset(ino);
381 }
382
383 /* Now build the IRQ bucket. */
384 imap = controller_regs + imap_off;
385 imap += 4;
386
387 iclr_off = psycho_iclr_offset(ino);
388 iclr = controller_regs + iclr_off;
389 iclr += 4;
390
391 if ((ino & 0x20) == 0)
392 inofixup = ino & 0x03;
393
394 return build_irq(inofixup, iclr, imap);
395}
396
397static void psycho_irq_trans_init(struct device_node *dp)
398{
399 struct linux_prom64_registers *regs;
400
401 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
402 dp->irq_trans->irq_build = psycho_irq_build;
403
404 regs = of_get_property(dp, "reg", NULL);
405 dp->irq_trans->data = (void *) regs[2].phys_addr;
406}
407
408#define sabre_read(__reg) \
409({ u64 __ret; \
410 __asm__ __volatile__("ldxa [%1] %2, %0" \
411 : "=r" (__ret) \
412 : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
413 : "memory"); \
414 __ret; \
415})
416
417struct sabre_irq_data {
418 unsigned long controller_regs;
419 unsigned int pci_first_busno;
420};
421#define SABRE_CONFIGSPACE 0x001000000UL
422#define SABRE_WRSYNC 0x1c20UL
423
424#define SABRE_CONFIG_BASE(CONFIG_SPACE) \
425 (CONFIG_SPACE | (1UL << 24))
426#define SABRE_CONFIG_ENCODE(BUS, DEVFN, REG) \
427 (((unsigned long)(BUS) << 16) | \
428 ((unsigned long)(DEVFN) << 8) | \
429 ((unsigned long)(REG)))
430
431/* When a device lives behind a bridge deeper in the PCI bus topology
432 * than APB, a special sequence must run to make sure all pending DMA
433 * transfers at the time of IRQ delivery are visible in the coherency
434 * domain by the cpu. This sequence is to perform a read on the far
435 * side of the non-APB bridge, then perform a read of Sabre's DMA
436 * write-sync register.
437 */
438static void sabre_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
439{
440 unsigned int phys_hi = (unsigned int) (unsigned long) _arg1;
441 struct sabre_irq_data *irq_data = _arg2;
442 unsigned long controller_regs = irq_data->controller_regs;
443 unsigned long sync_reg = controller_regs + SABRE_WRSYNC;
444 unsigned long config_space = controller_regs + SABRE_CONFIGSPACE;
445 unsigned int bus, devfn;
446 u16 _unused;
447
448 config_space = SABRE_CONFIG_BASE(config_space);
449
450 bus = (phys_hi >> 16) & 0xff;
451 devfn = (phys_hi >> 8) & 0xff;
452
453 config_space |= SABRE_CONFIG_ENCODE(bus, devfn, 0x00);
454
455 __asm__ __volatile__("membar #Sync\n\t"
456 "lduha [%1] %2, %0\n\t"
457 "membar #Sync"
458 : "=r" (_unused)
459 : "r" ((u16 *) config_space),
460 "i" (ASI_PHYS_BYPASS_EC_E_L)
461 : "memory");
462
463 sabre_read(sync_reg);
464}
465
466#define SABRE_IMAP_A_SLOT0 0x0c00UL
467#define SABRE_IMAP_B_SLOT0 0x0c20UL
468#define SABRE_IMAP_SCSI 0x1000UL
469#define SABRE_IMAP_ETH 0x1008UL
470#define SABRE_IMAP_BPP 0x1010UL
471#define SABRE_IMAP_AU_REC 0x1018UL
472#define SABRE_IMAP_AU_PLAY 0x1020UL
473#define SABRE_IMAP_PFAIL 0x1028UL
474#define SABRE_IMAP_KMS 0x1030UL
475#define SABRE_IMAP_FLPY 0x1038UL
476#define SABRE_IMAP_SHW 0x1040UL
477#define SABRE_IMAP_KBD 0x1048UL
478#define SABRE_IMAP_MS 0x1050UL
479#define SABRE_IMAP_SER 0x1058UL
480#define SABRE_IMAP_UE 0x1070UL
481#define SABRE_IMAP_CE 0x1078UL
482#define SABRE_IMAP_PCIERR 0x1080UL
483#define SABRE_IMAP_GFX 0x1098UL
484#define SABRE_IMAP_EUPA 0x10a0UL
485#define SABRE_ICLR_A_SLOT0 0x1400UL
486#define SABRE_ICLR_B_SLOT0 0x1480UL
487#define SABRE_ICLR_SCSI 0x1800UL
488#define SABRE_ICLR_ETH 0x1808UL
489#define SABRE_ICLR_BPP 0x1810UL
490#define SABRE_ICLR_AU_REC 0x1818UL
491#define SABRE_ICLR_AU_PLAY 0x1820UL
492#define SABRE_ICLR_PFAIL 0x1828UL
493#define SABRE_ICLR_KMS 0x1830UL
494#define SABRE_ICLR_FLPY 0x1838UL
495#define SABRE_ICLR_SHW 0x1840UL
496#define SABRE_ICLR_KBD 0x1848UL
497#define SABRE_ICLR_MS 0x1850UL
498#define SABRE_ICLR_SER 0x1858UL
499#define SABRE_ICLR_UE 0x1870UL
500#define SABRE_ICLR_CE 0x1878UL
501#define SABRE_ICLR_PCIERR 0x1880UL
502
503static unsigned long sabre_pcislot_imap_offset(unsigned long ino)
504{
505 unsigned int bus = (ino & 0x10) >> 4;
506 unsigned int slot = (ino & 0x0c) >> 2;
507
508 if (bus == 0)
509 return SABRE_IMAP_A_SLOT0 + (slot * 8);
510 else
511 return SABRE_IMAP_B_SLOT0 + (slot * 8);
512}
513
514static unsigned long __sabre_onboard_imap_off[] = {
515/*0x20*/ SABRE_IMAP_SCSI,
516/*0x21*/ SABRE_IMAP_ETH,
517/*0x22*/ SABRE_IMAP_BPP,
518/*0x23*/ SABRE_IMAP_AU_REC,
519/*0x24*/ SABRE_IMAP_AU_PLAY,
520/*0x25*/ SABRE_IMAP_PFAIL,
521/*0x26*/ SABRE_IMAP_KMS,
522/*0x27*/ SABRE_IMAP_FLPY,
523/*0x28*/ SABRE_IMAP_SHW,
524/*0x29*/ SABRE_IMAP_KBD,
525/*0x2a*/ SABRE_IMAP_MS,
526/*0x2b*/ SABRE_IMAP_SER,
527/*0x2c*/ 0 /* reserved */,
528/*0x2d*/ 0 /* reserved */,
529/*0x2e*/ SABRE_IMAP_UE,
530/*0x2f*/ SABRE_IMAP_CE,
531/*0x30*/ SABRE_IMAP_PCIERR,
532};
533#define SABRE_ONBOARD_IRQ_BASE 0x20
534#define SABRE_ONBOARD_IRQ_LAST 0x30
535#define sabre_onboard_imap_offset(__ino) \
536 __sabre_onboard_imap_off[(__ino) - SABRE_ONBOARD_IRQ_BASE]
537
538#define sabre_iclr_offset(ino) \
539 ((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
540 (SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
541
542static unsigned int sabre_irq_build(struct device_node *dp,
543 unsigned int ino,
544 void *_data)
545{
546 struct sabre_irq_data *irq_data = _data;
547 unsigned long controller_regs = irq_data->controller_regs;
548 struct linux_prom_pci_registers *regs;
549 unsigned long imap, iclr;
550 unsigned long imap_off, iclr_off;
551 int inofixup = 0;
552 int virt_irq;
553
554 ino &= 0x3f;
555 if (ino < SABRE_ONBOARD_IRQ_BASE) {
556 /* PCI slot */
557 imap_off = sabre_pcislot_imap_offset(ino);
558 } else {
559 /* onboard device */
560 if (ino > SABRE_ONBOARD_IRQ_LAST) {
561 prom_printf("sabre_irq_build: Wacky INO [%x]\n", ino);
562 prom_halt();
563 }
564 imap_off = sabre_onboard_imap_offset(ino);
565 }
566
567 /* Now build the IRQ bucket. */
568 imap = controller_regs + imap_off;
569 imap += 4;
570
571 iclr_off = sabre_iclr_offset(ino);
572 iclr = controller_regs + iclr_off;
573 iclr += 4;
574
575 if ((ino & 0x20) == 0)
576 inofixup = ino & 0x03;
577
578 virt_irq = build_irq(inofixup, iclr, imap);
579
580 regs = of_get_property(dp, "reg", NULL);
581 if (regs &&
582 ((regs->phys_hi >> 16) & 0xff) != irq_data->pci_first_busno) {
583 irq_install_pre_handler(virt_irq,
584 sabre_wsync_handler,
585 (void *) (long) regs->phys_hi,
586 (void *)
587 controller_regs +
588 SABRE_WRSYNC);
589 }
590
591 return virt_irq;
592}
593
594static void sabre_irq_trans_init(struct device_node *dp)
595{
596 struct linux_prom64_registers *regs;
597 struct sabre_irq_data *irq_data;
598 u32 *busrange;
599
600 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
601 dp->irq_trans->irq_build = sabre_irq_build;
602
603 irq_data = prom_early_alloc(sizeof(struct sabre_irq_data));
604
605 regs = of_get_property(dp, "reg", NULL);
606 irq_data->controller_regs = regs[0].phys_addr;
607
608 busrange = of_get_property(dp, "bus-range", NULL);
609 irq_data->pci_first_busno = busrange[0];
610
611 dp->irq_trans->data = irq_data;
612}
613
614/* SCHIZO interrupt mapping support. Unlike Psycho, for this controller the
615 * imap/iclr registers are per-PBM.
616 */
617#define SCHIZO_IMAP_BASE 0x1000UL
618#define SCHIZO_ICLR_BASE 0x1400UL
619
620static unsigned long schizo_imap_offset(unsigned long ino)
621{
622 return SCHIZO_IMAP_BASE + (ino * 8UL);
623}
624
625static unsigned long schizo_iclr_offset(unsigned long ino)
626{
627 return SCHIZO_ICLR_BASE + (ino * 8UL);
628}
629
630static unsigned long schizo_ino_to_iclr(unsigned long pbm_regs,
631 unsigned int ino)
632{
633 return pbm_regs + schizo_iclr_offset(ino) + 4;
634}
635
636static unsigned long schizo_ino_to_imap(unsigned long pbm_regs,
637 unsigned int ino)
638{
639 return pbm_regs + schizo_imap_offset(ino) + 4;
640}
641
642#define schizo_read(__reg) \
643({ u64 __ret; \
644 __asm__ __volatile__("ldxa [%1] %2, %0" \
645 : "=r" (__ret) \
646 : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
647 : "memory"); \
648 __ret; \
649})
650#define schizo_write(__reg, __val) \
651 __asm__ __volatile__("stxa %0, [%1] %2" \
652 : /* no outputs */ \
653 : "r" (__val), "r" (__reg), \
654 "i" (ASI_PHYS_BYPASS_EC_E) \
655 : "memory")
656
657static void tomatillo_wsync_handler(unsigned int ino, void *_arg1, void *_arg2)
658{
659 unsigned long sync_reg = (unsigned long) _arg2;
660 u64 mask = 1UL << (ino & IMAP_INO);
661 u64 val;
662 int limit;
663
664 schizo_write(sync_reg, mask);
665
666 limit = 100000;
667 val = 0;
668 while (--limit) {
669 val = schizo_read(sync_reg);
670 if (!(val & mask))
671 break;
672 }
673 if (limit <= 0) {
674 printk("tomatillo_wsync_handler: DMA won't sync [%lx:%lx]\n",
675 val, mask);
676 }
677
678 if (_arg1) {
679 static unsigned char cacheline[64]
680 __attribute__ ((aligned (64)));
681
682 __asm__ __volatile__("rd %%fprs, %0\n\t"
683 "or %0, %4, %1\n\t"
684 "wr %1, 0x0, %%fprs\n\t"
685 "stda %%f0, [%5] %6\n\t"
686 "wr %0, 0x0, %%fprs\n\t"
687 "membar #Sync"
688 : "=&r" (mask), "=&r" (val)
689 : "0" (mask), "1" (val),
690 "i" (FPRS_FEF), "r" (&cacheline[0]),
691 "i" (ASI_BLK_COMMIT_P));
692 }
693}
694
695struct schizo_irq_data {
696 unsigned long pbm_regs;
697 unsigned long sync_reg;
698 u32 portid;
699 int chip_version;
700};
701
702static unsigned int schizo_irq_build(struct device_node *dp,
703 unsigned int ino,
704 void *_data)
705{
706 struct schizo_irq_data *irq_data = _data;
707 unsigned long pbm_regs = irq_data->pbm_regs;
708 unsigned long imap, iclr;
709 int ign_fixup;
710 int virt_irq;
711 int is_tomatillo;
712
713 ino &= 0x3f;
714
715 /* Now build the IRQ bucket. */
716 imap = schizo_ino_to_imap(pbm_regs, ino);
717 iclr = schizo_ino_to_iclr(pbm_regs, ino);
718
719 /* On Schizo, no inofixup occurs. This is because each
720 * INO has it's own IMAP register. On Psycho and Sabre
721 * there is only one IMAP register for each PCI slot even
722 * though four different INOs can be generated by each
723 * PCI slot.
724 *
725 * But, for JBUS variants (essentially, Tomatillo), we have
726 * to fixup the lowest bit of the interrupt group number.
727 */
728 ign_fixup = 0;
729
730 is_tomatillo = (irq_data->sync_reg != 0UL);
731
732 if (is_tomatillo) {
733 if (irq_data->portid & 1)
734 ign_fixup = (1 << 6);
735 }
736
737 virt_irq = build_irq(ign_fixup, iclr, imap);
738
739 if (is_tomatillo) {
740 irq_install_pre_handler(virt_irq,
741 tomatillo_wsync_handler,
742 ((irq_data->chip_version <= 4) ?
743 (void *) 1 : (void *) 0),
744 (void *) irq_data->sync_reg);
745 }
746
747 return virt_irq;
748}
749
750static void schizo_irq_trans_init(struct device_node *dp)
751{
752 struct linux_prom64_registers *regs;
753 struct schizo_irq_data *irq_data;
754
755 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
756 dp->irq_trans->irq_build = schizo_irq_build;
757
758 irq_data = prom_early_alloc(sizeof(struct schizo_irq_data));
759
760 regs = of_get_property(dp, "reg", NULL);
761 dp->irq_trans->data = irq_data;
762
763 irq_data->pbm_regs = regs[0].phys_addr;
764 irq_data->sync_reg = regs[3].phys_addr + 0x1a18UL;
765 irq_data->portid = of_getintprop_default(dp, "portid", 0);
766 irq_data->chip_version = of_getintprop_default(dp, "version#", 0);
767}
768
769static unsigned int pci_sun4v_irq_build(struct device_node *dp,
770 unsigned int devino,
771 void *_data)
772{
773 u32 devhandle = (u32) (unsigned long) _data;
774
775 return sun4v_build_irq(devhandle, devino);
776}
777
778static void pci_sun4v_irq_trans_init(struct device_node *dp)
779{
780 struct linux_prom64_registers *regs;
781
782 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
783 dp->irq_trans->irq_build = pci_sun4v_irq_build;
784
785 regs = of_get_property(dp, "reg", NULL);
786 dp->irq_trans->data = (void *) (unsigned long)
787 ((regs->phys_addr >> 32UL) & 0x0fffffff);
788}
789#endif /* CONFIG_PCI */
790
791#ifdef CONFIG_SBUS
792/* INO number to IMAP register offset for SYSIO external IRQ's.
793 * This should conform to both Sunfire/Wildfire server and Fusion
794 * desktop designs.
795 */
796#define SYSIO_IMAP_SLOT0 0x2c04UL
797#define SYSIO_IMAP_SLOT1 0x2c0cUL
798#define SYSIO_IMAP_SLOT2 0x2c14UL
799#define SYSIO_IMAP_SLOT3 0x2c1cUL
800#define SYSIO_IMAP_SCSI 0x3004UL
801#define SYSIO_IMAP_ETH 0x300cUL
802#define SYSIO_IMAP_BPP 0x3014UL
803#define SYSIO_IMAP_AUDIO 0x301cUL
804#define SYSIO_IMAP_PFAIL 0x3024UL
805#define SYSIO_IMAP_KMS 0x302cUL
806#define SYSIO_IMAP_FLPY 0x3034UL
807#define SYSIO_IMAP_SHW 0x303cUL
808#define SYSIO_IMAP_KBD 0x3044UL
809#define SYSIO_IMAP_MS 0x304cUL
810#define SYSIO_IMAP_SER 0x3054UL
811#define SYSIO_IMAP_TIM0 0x3064UL
812#define SYSIO_IMAP_TIM1 0x306cUL
813#define SYSIO_IMAP_UE 0x3074UL
814#define SYSIO_IMAP_CE 0x307cUL
815#define SYSIO_IMAP_SBERR 0x3084UL
816#define SYSIO_IMAP_PMGMT 0x308cUL
817#define SYSIO_IMAP_GFX 0x3094UL
818#define SYSIO_IMAP_EUPA 0x309cUL
819
820#define bogon ((unsigned long) -1)
821static unsigned long sysio_irq_offsets[] = {
822 /* SBUS Slot 0 --> 3, level 1 --> 7 */
823 SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
824 SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0, SYSIO_IMAP_SLOT0,
825 SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
826 SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1, SYSIO_IMAP_SLOT1,
827 SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
828 SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2, SYSIO_IMAP_SLOT2,
829 SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
830 SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3, SYSIO_IMAP_SLOT3,
831
832 /* Onboard devices (not relevant/used on SunFire). */
833 SYSIO_IMAP_SCSI,
834 SYSIO_IMAP_ETH,
835 SYSIO_IMAP_BPP,
836 bogon,
837 SYSIO_IMAP_AUDIO,
838 SYSIO_IMAP_PFAIL,
839 bogon,
840 bogon,
841 SYSIO_IMAP_KMS,
842 SYSIO_IMAP_FLPY,
843 SYSIO_IMAP_SHW,
844 SYSIO_IMAP_KBD,
845 SYSIO_IMAP_MS,
846 SYSIO_IMAP_SER,
847 bogon,
848 bogon,
849 SYSIO_IMAP_TIM0,
850 SYSIO_IMAP_TIM1,
851 bogon,
852 bogon,
853 SYSIO_IMAP_UE,
854 SYSIO_IMAP_CE,
855 SYSIO_IMAP_SBERR,
856 SYSIO_IMAP_PMGMT,
857};
858
859#undef bogon
860
861#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets)
862
863/* Convert Interrupt Mapping register pointer to associated
864 * Interrupt Clear register pointer, SYSIO specific version.
865 */
866#define SYSIO_ICLR_UNUSED0 0x3400UL
867#define SYSIO_ICLR_SLOT0 0x340cUL
868#define SYSIO_ICLR_SLOT1 0x344cUL
869#define SYSIO_ICLR_SLOT2 0x348cUL
870#define SYSIO_ICLR_SLOT3 0x34ccUL
871static unsigned long sysio_imap_to_iclr(unsigned long imap)
872{
873 unsigned long diff = SYSIO_ICLR_UNUSED0 - SYSIO_IMAP_SLOT0;
874 return imap + diff;
875}
876
877static unsigned int sbus_of_build_irq(struct device_node *dp,
878 unsigned int ino,
879 void *_data)
880{
881 unsigned long reg_base = (unsigned long) _data;
882 struct linux_prom_registers *regs;
883 unsigned long imap, iclr;
884 int sbus_slot = 0;
885 int sbus_level = 0;
886
887 ino &= 0x3f;
888
889 regs = of_get_property(dp, "reg", NULL);
890 if (regs)
891 sbus_slot = regs->which_io;
892
893 if (ino < 0x20)
894 ino += (sbus_slot * 8);
895
896 imap = sysio_irq_offsets[ino];
897 if (imap == ((unsigned long)-1)) {
898 prom_printf("get_irq_translations: Bad SYSIO INO[%x]\n",
899 ino);
900 prom_halt();
901 }
902 imap += reg_base;
903
904 /* SYSIO inconsistency. For external SLOTS, we have to select
905 * the right ICLR register based upon the lower SBUS irq level
906 * bits.
907 */
908 if (ino >= 0x20) {
909 iclr = sysio_imap_to_iclr(imap);
910 } else {
911 sbus_level = ino & 0x7;
912
913 switch(sbus_slot) {
914 case 0:
915 iclr = reg_base + SYSIO_ICLR_SLOT0;
916 break;
917 case 1:
918 iclr = reg_base + SYSIO_ICLR_SLOT1;
919 break;
920 case 2:
921 iclr = reg_base + SYSIO_ICLR_SLOT2;
922 break;
923 default:
924 case 3:
925 iclr = reg_base + SYSIO_ICLR_SLOT3;
926 break;
927 };
928
929 iclr += ((unsigned long)sbus_level - 1UL) * 8UL;
930 }
931 return build_irq(sbus_level, iclr, imap);
932}
933
934static void sbus_irq_trans_init(struct device_node *dp)
935{
936 struct linux_prom64_registers *regs;
937
938 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
939 dp->irq_trans->irq_build = sbus_of_build_irq;
940
941 regs = of_get_property(dp, "reg", NULL);
942 dp->irq_trans->data = (void *) (unsigned long) regs->phys_addr;
943}
944#endif /* CONFIG_SBUS */
945
946
947static unsigned int central_build_irq(struct device_node *dp,
948 unsigned int ino,
949 void *_data)
950{
951 struct device_node *central_dp = _data;
952 struct of_device *central_op = of_find_device_by_node(central_dp);
953 struct resource *res;
954 unsigned long imap, iclr;
955 u32 tmp;
956
957 if (!strcmp(dp->name, "eeprom")) {
958 res = &central_op->resource[5];
959 } else if (!strcmp(dp->name, "zs")) {
960 res = &central_op->resource[4];
961 } else if (!strcmp(dp->name, "clock-board")) {
962 res = &central_op->resource[3];
963 } else {
964 return ino;
965 }
966
967 imap = res->start + 0x00UL;
968 iclr = res->start + 0x10UL;
969
970 /* Set the INO state to idle, and disable. */
971 upa_writel(0, iclr);
972 upa_readl(iclr);
973
974 tmp = upa_readl(imap);
975 tmp &= ~0x80000000;
976 upa_writel(tmp, imap);
977
978 return build_irq(0, iclr, imap);
979}
980
981static void central_irq_trans_init(struct device_node *dp)
982{
983 dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
984 dp->irq_trans->irq_build = central_build_irq;
985
986 dp->irq_trans->data = dp;
987}
988
989struct irq_trans {
990 const char *name;
991 void (*init)(struct device_node *);
992};
993
994#ifdef CONFIG_PCI
995static struct irq_trans pci_irq_trans_table[] = {
996 { "SUNW,sabre", sabre_irq_trans_init },
997 { "pci108e,a000", sabre_irq_trans_init },
998 { "pci108e,a001", sabre_irq_trans_init },
999 { "SUNW,psycho", psycho_irq_trans_init },
1000 { "pci108e,8000", psycho_irq_trans_init },
1001 { "SUNW,schizo", schizo_irq_trans_init },
1002 { "pci108e,8001", schizo_irq_trans_init },
1003 { "SUNW,schizo+", schizo_irq_trans_init },
1004 { "pci108e,8002", schizo_irq_trans_init },
1005 { "SUNW,tomatillo", schizo_irq_trans_init },
1006 { "pci108e,a801", schizo_irq_trans_init },
1007 { "SUNW,sun4v-pci", pci_sun4v_irq_trans_init },
1008};
1009#endif
1010
1011static void irq_trans_init(struct device_node *dp)
1012{
1013 const char *model;
1014 int i;
1015
1016 model = of_get_property(dp, "model", NULL);
1017 if (!model)
1018 model = of_get_property(dp, "compatible", NULL);
1019 if (!model)
1020 return;
1021
1022#ifdef CONFIG_PCI
1023 for (i = 0; i < ARRAY_SIZE(pci_irq_trans_table); i++) {
1024 struct irq_trans *t = &pci_irq_trans_table[i];
1025
1026 if (!strcmp(model, t->name))
1027 return t->init(dp);
1028 }
1029#endif
1030#ifdef CONFIG_SBUS
1031 if (!strcmp(dp->name, "sbus") ||
1032 !strcmp(dp->name, "sbi"))
1033 return sbus_irq_trans_init(dp);
1034#endif
1035 if (!strcmp(dp->name, "central"))
1036 return central_irq_trans_init(dp->child);
1037}
1038
286static int is_root_node(const struct device_node *dp) 1039static int is_root_node(const struct device_node *dp)
287{ 1040{
288 if (!dp) 1041 if (!dp)
@@ -706,10 +1459,10 @@ static struct device_node * __init create_node(phandle node)
706 dp->type = get_one_property(node, "device_type"); 1459 dp->type = get_one_property(node, "device_type");
707 dp->node = node; 1460 dp->node = node;
708 1461
709 /* Build interrupts later... */
710
711 dp->properties = build_prop_list(node); 1462 dp->properties = build_prop_list(node);
712 1463
1464 irq_trans_init(dp);
1465
713 return dp; 1466 return dp;
714} 1467}
715 1468
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-01 13:33:12 -0500