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Commit 6d4fa5ba authored by Jonathan Woithe's avatar Jonathan Woithe Committed by Greg Kroah-Hartman
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serial: 8250: Fix initialisation of Quatech cards with the AMCC PCI chip 



Fix the initialisation of older Quatech serial cards which are fitted with
the AMCC PCI Matchmaker interface chip.

Signed-off-by: default avatarJonathan Woithe <(jwoithe@just42.net)>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d6a62b3b

drivers/tty/serial/8250/8250_pci.c

+2 −2
Original line number Original line Diff line number Diff line
@@ -1259,10 +1259,10 @@ static int pci_quatech_init(struct pci_dev *dev) 
		unsigned long base = pci_resource_start(dev, 0);

		unsigned long base = pci_resource_start(dev, 0);

		if (base) {

		if (base) {

			u32 tmp;

			u32 tmp;

			outl(inl(base + 0x38), base + 0x38);

			outl(inl(base + 0x38) | 0x00002000, base + 0x38);

			tmp = inl(base + 0x3c);

			tmp = inl(base + 0x3c);

			outl(tmp | 0x01000000, base + 0x3c);

			outl(tmp | 0x01000000, base + 0x3c);

			outl(tmp, base + 0x3c);

			outl(tmp &= ~0x01000000, base + 0x3c);

		}

		}

	}

	}

	return 0;

	return 0;