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Update of the VIA 82c686b southbridge data corruption fix, also

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include more possible chipset candidates.
This commit is contained in:
sos 2002-01-01 19:58:11 +00:00
parent 9da90558a5
commit ddf3084aff
1 changed files with 18 additions and 14 deletions
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32
sys/dev/ata/ata-pci.c
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@ -1,5 +1,5 @@
/*-
* Copyright (c) 1998,1999,2000,2001 Søren Schmidt <sos@FreeBSD.org>
* Copyright (c) 1998,1999,2000,2001,2002 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -84,23 +84,27 @@ ata_find_dev(device_t dev, u_int32_t devid, u_int32_t revid)
}
static void
ata_via686b(device_t dev)
ata_via_southbridge_fixup(device_t dev)
{
device_t *children, child;
device_t *children;
int nchildren, i;
if (device_get_children(device_get_parent(dev), &children, &nchildren))
return;
for (i = 0; i < nchildren; i++) {
child = children[i];
if (pci_get_devid(children[i]) == 0x03051106 || /* VIA VT8363 */
pci_get_devid(children[i]) == 0x03911106 || /* VIA VT8371 */
pci_get_devid(children[i]) == 0x31021106 || /* VIA VT8662 */
pci_get_devid(children[i]) == 0x31121106) { /* VIA VT8361 */
u_int8_t reg76 = pci_read_config(children[i], 0x76, 1);
if (pci_get_devid(child) == 0x03051106 || /* VIA KT133 */
pci_get_devid(child) == 0x03911106) { /* VIA KX133 */
pci_write_config(child, 0x75, 0x83, 1);
pci_write_config(child, 0x76,
(pci_read_config(child, 0x76, 1) & 0xdf) | 0xd0,1);
device_printf(dev, "VIA '686b southbridge fix applied\n");
if ((reg76 & 0xf0) != 0xd0) {
device_printf(dev,
"Correcting VIA config for southbridge data corruption bug\n");
pci_write_config(children[i], 0x75, 0x80, 1);
pci_write_config(children[i], 0x76, (reg76 & 0x0f) | 0xd0, 1);
}
break;
}
}
@ -378,10 +382,10 @@ ata_pci_attach(device_t dev)
ata_find_dev(dev, 0x05961106, 0x12))
pci_write_config(dev, 0x50, 0x030b030b, 4);
/* the '686b might need the data corruption fix */
if (ata_find_dev(dev, 0x06861106, 0x40))
ata_via686b(dev);
/* the southbridge might need the data corruption fix */
if (ata_find_dev(dev, 0x06861106, 0x40) ||
ata_find_dev(dev, 0x82311106, 0x10))
ata_via_southbridge_fixup(dev);
/* FALLTHROUGH */
case 0x74091022: /* AMD 756 default setup */