redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

[PATCH] siimage: enable interrupts on Adaptec SA-1210 card 

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.

[ This is implemented based on similar code in the libata-based
  sata_sil driver. ]

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
wifi-calibration
John W. Linville 2005-11-10 00:19:14 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 25000c2c8a
commit d868dd19ad
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/ide/pci/siimage.c
View File

@ -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);
}