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[libata] sata_mv: Fix 50xx irq mask

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IRQ mask bits assumed a 60xx or newer generation chip, which is very
wrong for the 50xx series.  Luckily both generations shared the per-port
interrupt mask bits, leaving only the "misc chip features" bits to be
completely mismatched.

Fix 50xx by ensuring we only program bits that exist.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik 2007-02-25 04:19:45 -05:00
parent e728eabea1
commit fb621e2fde
1 changed files with 10 additions and 1 deletions
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11
drivers/ata/sata_mv.c
View file

@ -137,14 +137,19 @@ enum {
PCI_ERR = (1 << 18),
TRAN_LO_DONE = (1 << 19), /* 6xxx: IRQ coalescing */
TRAN_HI_DONE = (1 << 20), /* 6xxx: IRQ coalescing */
PORTS_0_3_COAL_DONE = (1 << 8),
PORTS_4_7_COAL_DONE = (1 << 17),
PORTS_0_7_COAL_DONE = (1 << 21), /* 6xxx: IRQ coalescing */
GPIO_INT = (1 << 22),
SELF_INT = (1 << 23),
TWSI_INT = (1 << 24),
HC_MAIN_RSVD = (0x7f << 25), /* bits 31-25 */
HC_MAIN_RSVD_5 = (0x1fff << 19), /* bits 31-19 */
HC_MAIN_MASKED_IRQS = (TRAN_LO_DONE | TRAN_HI_DONE |
PORTS_0_7_COAL_DONE | GPIO_INT | TWSI_INT |
HC_MAIN_RSVD),
HC_MAIN_MASKED_IRQS_5 = (PORTS_0_3_COAL_DONE | PORTS_4_7_COAL_DONE |
HC_MAIN_RSVD_5),
/* SATAHC registers */
HC_CFG_OFS = 0,
@ -2244,7 +2249,11 @@ static int mv_init_host(struct pci_dev *pdev, struct ata_probe_ent *probe_ent,
/* and unmask interrupt generation for host regs */
writelfl(PCI_UNMASK_ALL_IRQS, mmio + PCI_IRQ_MASK_OFS);
writelfl(~HC_MAIN_MASKED_IRQS, mmio + HC_MAIN_IRQ_MASK_OFS);
if (IS_50XX(hpriv))
writelfl(~HC_MAIN_MASKED_IRQS_5, mmio + HC_MAIN_IRQ_MASK_OFS);
else
writelfl(~HC_MAIN_MASKED_IRQS, mmio + HC_MAIN_IRQ_MASK_OFS);
VPRINTK("HC MAIN IRQ cause/mask=0x%08x/0x%08x "
"PCI int cause/mask=0x%08x/0x%08x\n",