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Commit 08db2a70 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Fix PIIX4 SMB region size 



Petr Vandrovec correctly points out that the SMB region of the PIIX4 is
just 16 bytes, not 32.

Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 9f75e1ef

drivers/pci/quirks.c

+2 −2
Original line number Diff line number Diff line
@@ -356,7 +356,7 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int 
/*

 * PIIX4 ACPI: Two IO regions pointed to by longwords at

 *	0x40 (64 bytes of ACPI registers)

 *	0x90 (32 bytes of SMB registers)

 *	0x90 (16 bytes of SMB registers)

 * and a few strange programmable PIIX4 device resources.

 */

static void __devinit quirk_piix4_acpi(struct pci_dev *dev)
@@ -366,7 +366,7 @@ static void __devinit quirk_piix4_acpi(struct pci_dev *dev) 
	pci_read_config_dword(dev, 0x40, &region);

	quirk_io_region(dev, region, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI");

	pci_read_config_dword(dev, 0x90, &region);

	quirk_io_region(dev, region, 32, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");

	quirk_io_region(dev, region, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB");



	/* Device resource A has enables for some of the other ones */

	pci_read_config_dword(dev, 0x5c, &res_a);