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-rw-r--r--arch/blackfin/kernel/setup.c233
1 files changed, 121 insertions, 112 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index d9517e7c792b..0ba5f4a1786c 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -471,6 +471,67 @@ close_cplbtab(struct cplb_tab *table)
471 return 0; 471 return 0;
472} 472}
473 473
474/* helper function */
475static void __fill_code_cplbtab(struct cplb_tab *t, int i,
476 u32 a_start, u32 a_end)
477{
478 if (cplb_data[i].psize) {
479 fill_cplbtab(t,
480 cplb_data[i].start,
481 cplb_data[i].end,
482 cplb_data[i].psize,
483 cplb_data[i].i_conf);
484 } else {
485#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
486 if (i == SDRAM_KERN) {
487 fill_cplbtab(t,
488 cplb_data[i].start,
489 cplb_data[i].end,
490 SIZE_4M,
491 cplb_data[i].i_conf);
492 } else {
493#endif
494 fill_cplbtab(t,
495 cplb_data[i].start,
496 a_start,
497 SIZE_1M,
498 cplb_data[i].i_conf);
499 fill_cplbtab(t,
500 a_start,
501 a_end,
502 SIZE_4M,
503 cplb_data[i].i_conf);
504 fill_cplbtab(t, a_end,
505 cplb_data[i].end,
506 SIZE_1M,
507 cplb_data[i].i_conf);
508 }
509 }
510}
511
512static void __fill_data_cplbtab(struct cplb_tab *t, int i,
513 u32 a_start, u32 a_end)
514{
515 if (cplb_data[i].psize) {
516 fill_cplbtab(t,
517 cplb_data[i].start,
518 cplb_data[i].end,
519 cplb_data[i].psize,
520 cplb_data[i].d_conf);
521 } else {
522 fill_cplbtab(t,
523 cplb_data[i].start,
524 a_start, SIZE_1M,
525 cplb_data[i].d_conf);
526 fill_cplbtab(t, a_start,
527 a_end, SIZE_4M,
528 cplb_data[i].d_conf);
529 fill_cplbtab(t, a_end,
530 cplb_data[i].end,
531 SIZE_1M,
532 cplb_data[i].d_conf);
533 }
534}
474static void __init generate_cpl_tables(void) 535static void __init generate_cpl_tables(void)
475{ 536{
476 537
@@ -540,130 +601,78 @@ static void __init generate_cpl_tables(void)
540 cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL; 601 cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL;
541 602
542 for (i = ZERO_P; i <= L2_MEM; i++) { 603 for (i = ZERO_P; i <= L2_MEM; i++) {
604 if (!cplb_data[i].valid)
605 continue;
543 606
544 if (cplb_data[i].valid) { 607 as_1m = cplb_data[i].start % SIZE_1M;
545 608
546 as_1m = cplb_data[i].start % SIZE_1M; 609 /*
610 * We need to make sure all sections are properly 1M aligned
611 * However between Kernel Memory and the Kernel mtd section,
612 * depending on the rootfs size, there can be overlapping
613 * memory areas.
614 */
547 615
548 /* We need to make sure all sections are properly 1M aligned 616 if (as_1m && i != L1I_MEM && i != L1D_MEM) {
549 * However between Kernel Memory and the Kernel mtd section, depending on the
550 * rootfs size, there can be overlapping memory areas.
551 */
552
553 if (as_1m && i!=L1I_MEM && i!=L1D_MEM) {
554#ifdef CONFIG_MTD_UCLINUX 617#ifdef CONFIG_MTD_UCLINUX
555 if (i == SDRAM_RAM_MTD) { 618 if (i == SDRAM_RAM_MTD) {
556 if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start) 619 if ((cplb_data[SDRAM_KERN].end + 1) >
557 cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M; 620 cplb_data[SDRAM_RAM_MTD].start)
558 else 621 cplb_data[SDRAM_RAM_MTD].start =
559 cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)); 622 (cplb_data[i].start &
560 } else 623 (-2*SIZE_1M)) + SIZE_1M;
624 else
625 cplb_data[SDRAM_RAM_MTD].start =
626 (cplb_data[i].start &
627 (-2*SIZE_1M));
628 } else
561#endif 629#endif
562 printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n", 630 printk(KERN_WARNING
563 cplb_data[i].name, cplb_data[i].start); 631 "Unaligned Start of %s at 0x%X\n",
564 } 632 cplb_data[i].name, cplb_data[i].start);
633 }
565 634
566 as = cplb_data[i].start % SIZE_4M; 635 as = cplb_data[i].start % SIZE_4M;
567 ae = cplb_data[i].end % SIZE_4M; 636 ae = cplb_data[i].end % SIZE_4M;
568
569 if (as)
570 a_start = cplb_data[i].start + (SIZE_4M - (as));
571 else
572 a_start = cplb_data[i].start;
573
574 a_end = cplb_data[i].end - ae;
575
576 for (j = INITIAL_T; j <= SWITCH_T; j++) {
577
578 switch (j) {
579 case INITIAL_T:
580 if (cplb_data[i].attr & INITIAL_T) {
581 t_i = &cplb.init_i;
582 t_d = &cplb.init_d;
583 process = 1;
584 } else
585 process = 0;
586 break;
587 case SWITCH_T:
588 if (cplb_data[i].attr & SWITCH_T) {
589 t_i = &cplb.switch_i;
590 t_d = &cplb.switch_d;
591 process = 1;
592 } else
593 process = 0;
594 break;
595 default:
596 process = 0;
597 break;
598 }
599 637
600 if (process) { 638 if (as)
601 if (cplb_data[i].attr & I_CPLB) { 639 a_start = cplb_data[i].start + (SIZE_4M - (as));
602 640 else
603 if (cplb_data[i].psize) { 641 a_start = cplb_data[i].start;
604 fill_cplbtab(t_i,
605 cplb_data[i].start,
606 cplb_data[i].end,
607 cplb_data[i].psize,
608 cplb_data[i].i_conf);
609 } else {
610 /*icplb_table */
611#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263))
612 if (i == SDRAM_KERN) {
613 fill_cplbtab(t_i,
614 cplb_data[i].start,
615 cplb_data[i].end,
616 SIZE_4M,
617 cplb_data[i].i_conf);
618 } else
619#endif
620 {
621 fill_cplbtab(t_i,
622 cplb_data[i].start,
623 a_start,
624 SIZE_1M,
625 cplb_data[i].i_conf);
626 fill_cplbtab(t_i,
627 a_start,
628 a_end,
629 SIZE_4M,
630 cplb_data[i].i_conf);
631 fill_cplbtab(t_i, a_end,
632 cplb_data[i].end,
633 SIZE_1M,
634 cplb_data[i].i_conf);
635 }
636 }
637 642
638 } 643 a_end = cplb_data[i].end - ae;
639 if (cplb_data[i].attr & D_CPLB) {
640
641 if (cplb_data[i].psize) {
642 fill_cplbtab(t_d,
643 cplb_data[i].start,
644 cplb_data[i].end,
645 cplb_data[i].psize,
646 cplb_data[i].d_conf);
647 } else {
648/*dcplb_table*/
649 fill_cplbtab(t_d,
650 cplb_data[i].start,
651 a_start, SIZE_1M,
652 cplb_data[i].d_conf);
653 fill_cplbtab(t_d, a_start,
654 a_end, SIZE_4M,
655 cplb_data[i].d_conf);
656 fill_cplbtab(t_d, a_end,
657 cplb_data[i].end,
658 SIZE_1M,
659 cplb_data[i].d_conf);
660 644
661 } 645 for (j = INITIAL_T; j <= SWITCH_T; j++) {
662 646
663 } 647 switch (j) {
664 } 648 case INITIAL_T:
649 if (cplb_data[i].attr & INITIAL_T) {
650 t_i = &cplb.init_i;
651 t_d = &cplb.init_d;
652 process = 1;
653 } else
654 process = 0;
655 break;
656 case SWITCH_T:
657 if (cplb_data[i].attr & SWITCH_T) {
658 t_i = &cplb.switch_i;
659 t_d = &cplb.switch_d;
660 process = 1;
661 } else
662 process = 0;
663 break;
664 default:
665 process = 0;
666 break;
665 } 667 }
666 668
669 if (!process)
670 continue;
671 if (cplb_data[i].attr & I_CPLB)
672 __fill_code_cplbtab(t_i, i, a_start, a_end);
673
674 if (cplb_data[i].attr & D_CPLB)
675 __fill_data_cplbtab(t_d, i, a_start, a_end);
667 } 676 }
668 } 677 }
669 678
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 00:03:13 -0500