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Commit 17248461 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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ahci: disable PMP for marvell ahcis 

Marvell ahcis don't play nicely with PMPs.  Disable it.

Reported by KueiHuan Chen in the following thread.

  http://thread.gmane.org/gmane.linux.ide/33296



Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Cc: KueiHuan Chen <kueihuan.chen@gmail.com>
Cc: Mark Lord <mlord@pobox.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 46c5784c

drivers/ata/ahci.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -420,7 +420,7 @@ static const struct ata_port_info ahci_port_info[] = { 
	/* board_ahci_mv */

	/* board_ahci_mv */

	{

	{

		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |

		AHCI_HFLAGS	(AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI |

				 AHCI_HFLAG_MV_PATA),

				 AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP),

		.flags		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |

		.flags		= ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |

				  ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,

				  ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,

		.pio_mask	= 0x1f, /* pio0-4 */

		.pio_mask	= 0x1f, /* pio0-4 */