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SubjectPATCH: IDE generic tweak
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This allows the user to force ide-generic to claim any remaining
IDE_STORAGE_CLASS devices. It isnt a good default to turn on because of
loadable driver modules and confusion with SATA however it is very
useful faced with a mainboard device that isn't supported any other way.
Note that the entry has to come last - if it looks OK I'll comment that
a bit more and update the option docs.

Comments ?

--- linux.vanilla-2.6.9rc3/drivers/ide/pci/generic.c 2004-09-30 16:13:08.000000000 +0100
+++ linux-2.6.9rc3/drivers/ide/pci/generic.c 2004-10-13 15:08:49.586093152 +0100
@@ -41,6 +41,17 @@

#include "generic.h"

+static int ide_generic_all; /* Set to claim all devices */
+
+static int __init ide_generic_all_on(char *unused)
+{
+ ide_generic_all = 1;
+ printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
+ return 1;
+}
+
+__setup("all-generic-ide", ide_generic_all_on);
+
static unsigned int __init init_chipset_generic (struct pci_dev *dev, const char *name)
{
return 0;
@@ -96,6 +107,11 @@
{
ide_pci_device_t *d = &generic_chipsets[id->driver_data];
u16 command;
+
+ /* Don't use the generic entry unless instructed to do so */
+ if (id->driver_data == 13)
+ if(ide_generic_all == 0)
+ return 1;

if (dev->vendor == PCI_VENDOR_ID_UMC &&
dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
@@ -108,8 +124,7 @@
return 1;

pci_read_config_word(dev, PCI_COMMAND, &command);
- if(!(command & PCI_COMMAND_IO))
- {
+ if(!(command & PCI_COMMAND_IO)) {
printk(KERN_INFO "Skipping disabled %s IDE controller.\n", d->name);
return 1;
}
@@ -133,6 +148,8 @@
{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},
+
+ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 13},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
--- linux.vanilla-2.6.9rc3/drivers/ide/pci/generic.h 2004-09-30 15:35:49.000000000 +0100
+++ linux-2.6.9rc3/drivers/ide/pci/generic.h 2004-10-13 15:10:54.061170064 +0100
@@ -101,6 +101,13 @@
.channels = 2,
.autodma = NOAUTODMA,
.bootable = ON_BOARD,
+ },{ /* 13 */
+ .name = "Unknown",
+ .init_chipset = init_chipset_generic,
+ .init_hwif = init_hwif_generic,
+ .channels = 2,
+ .autodma = NOAUTODMA,
+ .bootable = ON_BOARD,
}
};

-
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