sky2: handle advanced error recovery config issues
The PCI AER support may not work for a couple of reasons.
It may not be configured into the kernel or there may be a BIOS
bug that prevents MMCONFIG from working. If MMCONFIG doesn't work
then the PCI registers that control AER will not be accessible via
pci_read_config functions; luckly there is another window to access
PCI space in the device, so use that.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index 49ee264..69525fd 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -247,7 +247,8 @@
B3_PA_CTRL = 0x01f0,
B3_PA_TEST = 0x01f2,
- Y2_CFG_SPC = 0x1c00,
+ Y2_CFG_SPC = 0x1c00, /* PCI config space region */
+ Y2_CFG_AER = 0x1d00, /* PCI Advanced Error Report region */
};
/* B0_CTST 16 bit Control/Status register */
