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-rw-r--r--drivers/ide/pci/siimage.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 2b9961b8813..022d244f2eb 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -701,6 +701,7 @@ static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
unsigned long barsize = pci_resource_len(dev, 5);
u8 tmpbyte = 0;
void __iomem *ioaddr;
+ u32 tmp, irq_mask;
/*
* Drop back to PIO if we can't map the mmio. Some
@@ -726,6 +727,14 @@ static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
pci_set_drvdata(dev, (void *) ioaddr);
if (pdev_is_sata(dev)) {
+ /* make sure IDE0/1 interrupts are not masked */
+ irq_mask = (1 << 22) | (1 << 23);
+ tmp = readl(ioaddr + 0x48);
+ if (tmp & irq_mask) {
+ tmp &= ~irq_mask;
+ writel(tmp, ioaddr + 0x48);
+ readl(ioaddr + 0x48); /* flush */
+ }
writel(0, ioaddr + 0x148);
writel(0, ioaddr + 0x1C8);
}