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Commit a951f282 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Malta: Enable PCI 2.1 compatibility in PIIX4 



Based on original patch by Chris Dearman <chris@mips.com>.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent c7088755

arch/mips/mti-malta/malta-pci.c

+13 −0
Original line number Diff line number Diff line
@@ -241,3 +241,16 @@ void __init mips_pcibios_init(void) 


	register_pci_controller(controller);

}



/* Enable PCI 2.1 compatibility in PIIX4 */

static void __init quirk_dlcsetup(struct pci_dev *dev)

{

	u8 odlc, ndlc;

	(void) pci_read_config_byte(dev, 0x82, &odlc);

	/* Enable passive releases and delayed transaction */

	ndlc = odlc | 7;

	(void) pci_write_config_byte(dev, 0x82, ndlc);

}



DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0,

	quirk_dlcsetup);