* [PATCH] IDE PCI probe
@ 2001-10-24 0:22 Tim Hockin
0 siblings, 0 replies; only message in thread
From: Tim Hockin @ 2001-10-24 0:22 UTC (permalink / raw)
To: andre, Linux Kernel Mailing List
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Andre,
Here is the patch as we discussed - it works, it is good. Needed for
controllers that can do native mode but not native PCI IRQs.
Tim
--
Tim Hockin
Systems Software Engineer
Sun Microsystems, Cobalt Server Appliances
thockin@sun.com
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--- virgin-2.4.12/drivers/ide/ide-pci.c Wed Oct 10 14:37:29 2001
+++ CVS-checkout/drivers/ide/ide-pci.c Thu Oct 18 10:22:53 2001
@@ -653,32 +653,44 @@
/* Its attached to something else, just a random bridge.
Suspect a fastrak and fall through */
}
- if ((dev->class & ~(0xfa)) != ((PCI_CLASS_STORAGE_IDE << 8) | 5)) {
- printk("%s: not 100%% native mode: will probe irqs later\n", d->name);
- /*
- * This allows offboard ide-pci cards the enable a BIOS,
- * verify interrupt settings of split-mirror pci-config
- * space, place chipset into init-mode, and/or preserve
- * an interrupt if the card is not native ide support.
- */
- pciirq = (d->init_chipset) ? d->init_chipset(dev, d->name) : ide_special_settings(dev, d->name);
+
+ if (!tried_config &&
+ (dev->class >> 8 == PCI_CLASS_STORAGE_IDE ||
+ dev->class >> 8 == PCI_CLASS_STORAGE_OTHER)) {
+ if ((dev->class & 0x5) == 0x5 && pciirq) {
+ if (d->init_chipset) {
+ (void) d->init_chipset(dev, d->name);
+ }
+#ifdef __sparc__
+ printk("%s: 100%% native mode on irq %s\n",
+ d->name, __irq_itoa(pciirq));
+#else
+ printk("%s: 100%% native mode on irq %d\n",
+ d->name, pciirq);
+#endif
+ } else if ((dev->class & 0x5) == 0x5) {
+ if (d->init_chipset) {
+ pciirq = d->init_chipset(dev, d->name);
+ }
+ printk("%s: native mode: will probe irqs later\n",
+ d->name);
+ } else {
+ if (d->init_chipset) {
+ pciirq = d->init_chipset(dev, d->name);
+ } else {
+ pciirq = ide_special_settings(dev, d->name);
+ }
+ printk("%s: non-native mode: will probe irqs later\n",
+ d->name);
+ }
} else if (tried_config) {
printk("%s: will probe irqs later\n", d->name);
pciirq = 0;
- } else if (!pciirq) {
- printk("%s: bad irq (%d): will probe later\n", d->name, pciirq);
- pciirq = 0;
} else {
- if (d->init_chipset)
- (void) d->init_chipset(dev, d->name);
-#ifdef __sparc__
- printk("%s: 100%% native mode on irq %s\n",
- d->name, __irq_itoa(pciirq));
-#else
- printk("%s: 100%% native mode on irq %d\n", d->name, pciirq);
-#endif
+ printk("%s: what am I expected to do with this?\n", d->name);
+ pciirq = 0;
}
-
+
/*
* Set up the IDE ports
*/
@@ -784,6 +796,7 @@
IDE_PCI_DEVID_EQ(d->devid, DEVID_CMD648) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_CMD649) ||
IDE_PCI_DEVID_EQ(d->devid, DEVID_OSB4) ||
+ IDE_PCI_DEVID_EQ(d->devid, DEVID_CSB5) ||
((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 0x80))) {
unsigned long dma_base = ide_get_or_set_dma_base(hwif, (!mate && d->extra) ? d->extra : 0, d->name);
if (dma_base && !(pcicmd & PCI_COMMAND_MASTER)) {
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