Commit d408e2b1 authored by Brian Norris's avatar Brian Norris Committed by Jeff Garzik
Browse files

ahci_platform: add STRICT_AHCI platform type 



Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag.

Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
parent 55d5ec31

drivers/ata/ahci_platform.c

+11 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
enum ahci_type {

	AHCI,		/* standard platform ahci */

	IMX53_AHCI,	/* ahci on i.mx53 */

	STRICT_AHCI,	/* delayed DMA engine start */

};



static struct platform_device_id ahci_devtype[] = {
@@ -35,6 +36,9 @@ static struct platform_device_id ahci_devtype[] = { 
	}, {

		.name = "imx53-ahci",

		.driver_data = IMX53_AHCI,

	}, {

		.name = "strict-ahci",

		.driver_data = STRICT_AHCI,

	}, {

		/* sentinel */

	}
@@ -56,6 +60,13 @@ static const struct ata_port_info ahci_port_info[] = { 
		.udma_mask	= ATA_UDMA6,

		.port_ops	= &ahci_pmp_retry_srst_ops,

	},

	[STRICT_AHCI] = {

		AHCI_HFLAGS	(AHCI_HFLAG_DELAY_ENGINE),

		.flags		= AHCI_FLAG_COMMON,

		.pio_mask	= ATA_PIO4,

		.udma_mask	= ATA_UDMA6,

		.port_ops	= &ahci_ops,

	},

};



static struct scsi_host_template ahci_platform_sht = {