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Commit 22b49985 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
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[PATCH] ahci: add constants for SRST 



Add constants needed to perform SRST.  This is preparation for adding
softreset method.

Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent e0bfd149

drivers/scsi/ahci.c

+4 −0
Original line number Diff line number Diff line
@@ -66,6 +66,8 @@ enum { 
	AHCI_IRQ_ON_SG		= (1 << 31),

	AHCI_CMD_ATAPI		= (1 << 5),

	AHCI_CMD_WRITE		= (1 << 6),

	AHCI_CMD_RESET		= (1 << 8),

	AHCI_CMD_CLR_BUSY	= (1 << 10),



	RX_FIS_D2H_REG		= 0x40,	/* offset of D2H Register FIS data */
@@ -85,6 +87,7 @@ enum { 


	/* HOST_CAP bits */

	HOST_CAP_64		= (1 << 31), /* PCI DAC (64-bit DMA) support */

	HOST_CAP_CLO		= (1 << 24), /* Command List Override support */



	/* registers for each SATA port */

	PORT_LST_ADDR		= 0x00, /* command list DMA addr */
@@ -138,6 +141,7 @@ enum { 
	PORT_CMD_LIST_ON	= (1 << 15), /* cmd list DMA engine running */

	PORT_CMD_FIS_ON		= (1 << 14), /* FIS DMA engine running */

	PORT_CMD_FIS_RX		= (1 << 4), /* Enable FIS receive DMA engine */

	PORT_CMD_CLO		= (1 << 3), /* Command list override */

	PORT_CMD_POWER_ON	= (1 << 2), /* Power up device */

	PORT_CMD_SPIN_UP	= (1 << 1), /* Spin up device */

	PORT_CMD_START		= (1 << 0), /* Enable port DMA engine */