[PATCH] SMSC SLC90E66: IRQ router support and PCI quirk

[<pazke@orbita1.ru>]

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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
pazke@orbita1.ru        | PGP key: http://www.orbita1.ru/~pazke/AndreyPanin.asc

[-- Attachment #1.2: patch-SLC90E66-pirq --]
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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 },
 

[-- Attachment #1.3: patch-SLC90E66-quirk --]
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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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