[PATCH] ahci: add constants for SRST

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

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 2abc0ac..5caf6de 100644 (file)
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -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 */