firewire: ohci: enable cycle timer fix on ALi and NEC controllers

		c2 = reg_read(ohci, OHCI1394_IsochronousCycleTimer);

	} else {

		/*

		 * VIA controllers have two bugs when updating the iso cycle

		 * timer register:

		 * 1) When the lowest six bits are wrapping around to zero,

		 * Some controllers exhibit one or more of the following bugs

		 * when updating the iso cycle timer register:

		 *  - When the lowest six bits are wrapping around to zero,

		 *    a read that happens at the same time will return garbage

		 *    in the lowest ten bits.

		 * 2) When the cycleOffset field wraps around to zero, the

		 *  - When the cycleOffset field wraps around to zero, the

		 *    cycleCount field is not incremented for about 60 ns.

		 *  - Occasionally, the entire register reads zero.

		 *

		 * To catch these, we read the register three times and ensure

		 * that the difference between each two consecutive reads is

#endif

	ohci->bus_reset_packet_quirk = dev->vendor == PCI_VENDOR_ID_TI;

	ohci->iso_cycle_timer_quirk = dev->vendor == PCI_VENDOR_ID_VIA;

	ohci->iso_cycle_timer_quirk = dev->vendor == PCI_VENDOR_ID_AL	||

				      dev->vendor == PCI_VENDOR_ID_NEC	||

				      dev->vendor == PCI_VENDOR_ID_VIA;

	ar_context_init(&ohci->ar_request_ctx, ohci,

			OHCI1394_AsReqRcvContextControlSet);