Messages in this thread Patch in this message | | | Date | Wed, 28 Sep 2005 17:50:50 -0400 | From | "John W. Linville" <> | Subject | [patch 2.6.14-rc2] siimage: enable interrupts on Adaptec SA-1210 card |
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The siimage driver proports to support the Adaptec SA-1210 SATA controller. However, at least some of those cards boot-up with their interrupts disabled internally. The siimage driver currently ignores that fact, so that driver does not actually work with those cards. This patch enables those interrupts on cards that need it.
Signed-off-by: John W. Linville <linville@tuxdriver.com> --- This is implemented based on similar code in the libata-based sata_sil driver.
drivers/ide/pci/siimage.c | 9 +++++++++ 1 files changed, 9 insertions(+)
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c --- a/drivers/ide/pci/siimage.c +++ b/drivers/ide/pci/siimage.c @@ -701,6 +701,7 @@ static unsigned int setup_mmio_siimage ( 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 ( 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); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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