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sky2: only disable 88e8056 on some boards

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Use DMI to add a blacklist of broken boards (so far only one).
Hopefully, the problems will be solved later, and the the whole
blacklist can disappear.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger 2007-05-11 11:21:47 -07:00 committed by Jeff Garzik
parent 78f0b62d4c
commit f30cac6fbf
1 changed files with 30 additions and 11 deletions
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41
drivers/net/sky2.c
View file

@ -40,6 +40,7 @@
#include <linux/if_vlan.h>
#include <linux/prefetch.h>
#include <linux/mii.h>
#include <linux/dmi.h>
#include <asm/irq.h>
@ -150,6 +151,8 @@ static const char *yukon2_name[] = {
"FE", /* 0xb7 */
};
static int dmi_blacklisted;
/* Access to external PHY */
static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
{
@ -2531,6 +2534,17 @@ static int __devinit sky2_init(struct sky2_hw *hw)
return -EOPNOTSUPP;
}
/* Some Gigabyte motherboards have 88e8056 but cause problems
* There is some unresolved hardware related problem that causes
* descriptor errors and receive data corruption.
*/
if (hw->chip_id == CHIP_ID_YUKON_EC_U && dmi_blacklisted) {
dev_err(&hw->pdev->dev,
"88E8056 on this motherboard not supported\n");
return -EOPNOTSUPP;
}
hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
hw->ports = 1;
t8 = sky2_read8(hw, B2_Y2_HW_RES);
@ -3578,17 +3592,6 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
goto err_out;
}
/* Some Gigabyte motherboards have 88e8056 but cause problems
* There is some unresolved hardware related problem that causes
* descriptor errors and receive data corruption.
*/
if (pdev->vendor == PCI_VENDOR_ID_MARVELL &&
pdev->device == 0x4364 && pdev->subsystem_vendor == 0x1458) {
dev_err(&pdev->dev,
"88E8056 on Gigabyte motherboards not supported\n");
goto err_out_disable;
}
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
dev_err(&pdev->dev, "cannot obtain PCI resources\n");
@ -3907,8 +3910,24 @@ static struct pci_driver sky2_driver = {
.shutdown = sky2_shutdown,
};
static struct dmi_system_id __initdata broken_dmi_table[] = {
{
.ident = "Gigabyte 965P-S3",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_PRODUCT_NAME, "965P-S3"),
},
},
{ }
};
static int __init sky2_init_module(void)
{
/* Look for sick motherboards */
if (dmi_check_system(broken_dmi_table))
dmi_blacklisted = 1;
return pci_register_driver(&sky2_driver);
}