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Commit d408e2b1 authored by Brian Norris's avatar Brian Norris Committed by Jeff Garzik
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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
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+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 = {