quirk_usb_disable_ehci takes 2x 1.5s on boot

[Jiri Slaby]

Hi,

I don't know since which moment (maybe I changed something in bios, but usb
legacy kbd was ever enabled), but quirk_usb_disable_ehci takes for both of my
ehci controllers 1.5 s.

More precisely, the time is spent in
pci_write_config_byte(pdev, offset + 3, 1);
by
outb((u8)value, 0xCFC + (reg & 3));
from pci_conf1_write deep in the callstack.

Is there any workaround known or something. Turning legacy usb off is not an
option, I want to control grub.

Thanks.
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