X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fide%2Fpci%2Fsiimage.c;h=f1ca154dd52ca088f25ec0c0ac28845a47a59e18;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=2b9961b881355a8eafa826fb8e6cd7b2762e569b;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index 2b9961b88..f1ca154dd 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -6,7 +6,13 @@
  *
  *  May be copied or modified under the terms of the GNU General Public License
  *
- *  Documentation available under NDA only
+ *  Documentation for CMD680:
+ *  http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2
+ *
+ *  Documentation for SiI 3112:
+ *  http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
+ *
+ *  Errata and other documentation only available under NDA.
  *
  *
  *  FAQ Items:
@@ -701,6 +707,7 @@ 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 +733,14 @@ 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);
 	}