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path: root/drivers/edac/mv64x60_edac.c
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Diffstat (limited to 'drivers/edac/mv64x60_edac.c')
-rw-r--r--drivers/edac/mv64x60_edac.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/edac/mv64x60_edac.c b/drivers/edac/mv64x60_edac.c
index de69163ff5b3..083ce8d0c63d 100644
--- a/drivers/edac/mv64x60_edac.c
+++ b/drivers/edac/mv64x60_edac.c
@@ -71,6 +71,35 @@ static irqreturn_t mv64x60_pci_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
+/*
+ * Bit 0 of MV64x60_PCIx_ERR_MASK does not exist on the 64360 and because of
+ * errata FEr-#11 and FEr-##16 for the 64460, it should be 0 on that chip as
+ * well. IOW, don't set bit 0.
+ */
+
+/* Erratum FEr PCI-#16: clear bit 0 of PCI SERRn Mask reg. */
+static int __init mv64x60_pci_fixup(struct platform_device *pdev)
+{
+ struct resource *r;
+ void __iomem *pci_serr;
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!r) {
+ printk(KERN_ERR "%s: Unable to get resource for "
+ "PCI err regs\n", __func__);
+ return -ENOENT;
+ }
+
+ pci_serr = ioremap(r->start, r->end - r->start + 1);
+ if (!pci_serr)
+ return -ENOMEM;
+
+ out_le32(pci_serr, in_le32(pci_serr) & ~0x1);
+ iounmap(pci_serr);
+
+ return 0;
+}
+
static int __devinit mv64x60_pci_err_probe(struct platform_device *pdev)
{
struct edac_pci_ctl_info *pci;
@@ -128,6 +157,12 @@ static int __devinit mv64x60_pci_err_probe(struct platform_device *pdev)
goto err;
}
+ res = mv64x60_pci_fixup(pdev);
+ if (res < 0) {
+ printk(KERN_ERR "%s: PCI fixup failed\n", __func__);
+ goto err;
+ }
+
out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE, 0);
out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_MASK, 0);
out_le32(pdata->pci_vbase + MV64X60_PCI_ERROR_MASK,