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Diffstat (limited to 'arch/ppc/syslib/mv64360_pic.c')
-rw-r--r--arch/ppc/syslib/mv64360_pic.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/arch/ppc/syslib/mv64360_pic.c b/arch/ppc/syslib/mv64360_pic.c
index 74d8996418e9..8356da4678a2 100644
--- a/arch/ppc/syslib/mv64360_pic.c
+++ b/arch/ppc/syslib/mv64360_pic.c
@@ -366,10 +366,16 @@ mv64360_pci_error_int_handler(int irq, void *dev_id, struct pt_regs *regs)
366 return IRQ_HANDLED; 366 return IRQ_HANDLED;
367} 367}
368 368
369/*
370 * Bit 0 of MV64x60_PCIx_ERR_MASK does not exist on the 64360 and because of
371 * errata FEr-#11 and FEr-##16 for the 64460, it should be 0 on that chip as
372 * well. IOW, don't set bit 0.
373 */
374#define MV64360_PCI0_ERR_MASK_VAL 0x00a50c24
375
369static int __init 376static int __init
370mv64360_register_hdlrs(void) 377mv64360_register_hdlrs(void)
371{ 378{
372 u32 mask;
373 int rc; 379 int rc;
374 380
375 /* Clear old errors and register CPU interface error intr handler */ 381 /* Clear old errors and register CPU interface error intr handler */
@@ -387,17 +393,6 @@ mv64360_register_hdlrs(void)
387 mv64360_sram_error_int_handler,SA_INTERRUPT,SRAM_INTR_STR, 0))) 393 mv64360_sram_error_int_handler,SA_INTERRUPT,SRAM_INTR_STR, 0)))
388 printk(KERN_WARNING "Can't register SRAM error handler: %d",rc); 394 printk(KERN_WARNING "Can't register SRAM error handler: %d",rc);
389 395
390 /*
391 * Bit 0 reserved on 64360 and erratum FEr PCI-#11 (PCI internal
392 * data parity error set incorrectly) on rev 0 & 1 of 64460 requires
393 * bit 0 to be cleared.
394 */
395 mask = 0x00a50c24;
396
397 if ((mv64x60_get_bridge_type() == MV64x60_TYPE_MV64460) &&
398 (mv64x60_get_bridge_rev() > 1))
399 mask |= 0x1; /* enable DPErr on 64460 */
400
401 /* Clear old errors and register PCI 0 error intr handler */ 396 /* Clear old errors and register PCI 0 error intr handler */
402 mv64x60_write(&bh, MV64x60_PCI0_ERR_CAUSE, 0); 397 mv64x60_write(&bh, MV64x60_PCI0_ERR_CAUSE, 0);
403 if ((rc = request_irq(MV64360_IRQ_PCI0 + mv64360_irq_base, 398 if ((rc = request_irq(MV64360_IRQ_PCI0 + mv64360_irq_base,
@@ -407,7 +402,11 @@ mv64360_register_hdlrs(void)
407 rc); 402 rc);
408 403
409 mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, 0); 404 mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, 0);
410 mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, mask); 405 mv64x60_write(&bh, MV64x60_PCI0_ERR_MASK, MV64360_PCI0_ERR_MASK_VAL);
406
407 /* Erratum FEr PCI-#16 says to clear bit 0 of PCI SERRn Mask reg. */
408 mv64x60_write(&bh, MV64x60_PCI0_ERR_SERR_MASK,
409 mv64x60_read(&bh, MV64x60_PCI0_ERR_SERR_MASK) & ~0x1UL);
411 410
412 /* Clear old errors and register PCI 1 error intr handler */ 411 /* Clear old errors and register PCI 1 error intr handler */
413 mv64x60_write(&bh, MV64x60_PCI1_ERR_CAUSE, 0); 412 mv64x60_write(&bh, MV64x60_PCI1_ERR_CAUSE, 0);
@@ -418,7 +417,11 @@ mv64360_register_hdlrs(void)
418 rc); 417 rc);
419 418
420 mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, 0); 419 mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, 0);
421 mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, mask); 420 mv64x60_write(&bh, MV64x60_PCI1_ERR_MASK, MV64360_PCI0_ERR_MASK_VAL);
421
422 /* Erratum FEr PCI-#16 says to clear bit 0 of PCI Intr Mask reg. */
423 mv64x60_write(&bh, MV64x60_PCI1_ERR_SERR_MASK,
424 mv64x60_read(&bh, MV64x60_PCI1_ERR_SERR_MASK) & ~0x1UL);
422 425
423 return 0; 426 return 0;
424} 427}