Hi all,
SMSC SLC90E66 is southbridge chip, designed to be almost exact clone of
Intel PIIX4. So it needs same handling as an original chip.
Attached two patches against 2.4.5-ac17,
first adds IRQ router support (using functions for Intel PIIX4),
second adds quirk handling (ACPI/SMBus resources) same as for original PIIX4.
Both patches are untested, written according to SLC90E66 datasheet.
Best regards.
--
Andrey Panin | Embedded systems software engineer
[EMAIL PROTECTED] | PGP key: http://www.orbita1.ru/~pazke/AndreyPanin.asc
diff -ur linux.vanilla/arch/i386/kernel/pci-irq.c linux/arch/i386/kernel/pci-irq.c
--- linux.vanilla/arch/i386/kernel/pci-irq.c Tue Jun 26 10:38:25 2001
+++ linux/arch/i386/kernel/pci-irq.c Tue Jun 26 11:07:27 2001
@@ -174,7 +174,7 @@
}
/*
- * The Intel PIIX4 pirq rules are fairly simple: "pirq" is
+ * The Intel PIIX4 and SMSC SLC90E66 pirq rules are fairly simple: "pirq" is
* just a pointer to the config space.
*/
static int pirq_piix_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
@@ -448,6 +448,7 @@
{ "PIIX", PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371MX, pirq_piix_get,
pirq_piix_set },
{ "PIIX", PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_0, pirq_piix_get,
pirq_piix_set },
{ "PIIX", PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, pirq_piix_get,
pirq_piix_set },
+ { "SLC90E66", PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+pirq_piix_get, pirq_piix_set },
{ "ALI", PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, pirq_ali_get, pirq_ali_set
},
diff -ur linux.vanilla/arch/i386/kernel/pci-pc.c linux/arch/i386/kernel/pci-pc.c
--- linux.vanilla/arch/i386/kernel/pci-pc.c Tue Jun 26 10:38:25 2001
+++ linux/arch/i386/kernel/pci-pc.c Tue Jun 26 15:03:16 2001
@@ -943,7 +943,7 @@
static void __init pci_fixup_piix4_acpi(struct pci_dev *d)
{
/*
- * PIIX4 ACPI device: hardwired IRQ9
+ * Intel PIIX4 and SMSC SLC90E66 ACPI device: hardwired IRQ9
*/
d->irq = 9;
}
@@ -996,6 +996,7 @@
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C598_1,
pci_fixup_via691_2 },
#endif
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3,
pci_fixup_piix4_acpi },
+ { PCI_FIXUP_HEADER, PCI_DEVICE_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3,
+ pci_fixup_piix4_acpi },
{ 0 }
};
diff -ur linux.vanilla/drivers/pci/quirks.c linux/drivers/pci/quirks.c
--- linux.vanilla/drivers/pci/quirks.c Tue Jun 26 10:37:55 2001
+++ linux/drivers/pci/quirks.c Tue Jun 26 15:00:31 2001
@@ -209,7 +209,7 @@
}
/*
- * PIIX4 ACPI: Two IO regions pointed to by longwords at
+ * Intel PIIX4 and SMSC SLC90E66 ACPI: Two IO regions pointed to by longwords at
* 0x40 (64 bytes of ACPI registers)
* 0x90 (32 bytes of SMB registers)
*/
@@ -423,6 +423,7 @@
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3,
quirk_vt82c586_acpi },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4,
quirk_vt82c686_acpi },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3,
quirk_piix4_acpi },
+ { PCI_FIXUP_HEADER, PCI_DEVICE_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_3,
+ quirk_piix4_acpi },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101,
quirk_ali7101_acpi },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_2,
quirk_piix3_usb },
{ PCI_FIXUP_HEADER, PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_2,
quirk_piix3_usb },
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