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Diffstat (limited to 'drivers/ata/ahci.h')
-rw-r--r--drivers/ata/ahci.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 57eb1c212a4c..9be471200a07 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -35,6 +35,7 @@
#ifndef _AHCI_H
#define _AHCI_H
+#include <linux/clk.h>
#include <linux/libata.h>
/* Enclosure Management Control */
@@ -115,6 +116,9 @@ enum {
HOST_CAP2_BOH = (1 << 0), /* BIOS/OS handoff supported */
HOST_CAP2_NVMHCI = (1 << 1), /* NVMHCI supported */
HOST_CAP2_APST = (1 << 2), /* Automatic partial to slumber */
+ HOST_CAP2_SDS = (1 << 3), /* Support device sleep */
+ HOST_CAP2_SADM = (1 << 4), /* Support aggressive DevSlp */
+ HOST_CAP2_DESO = (1 << 5), /* DevSlp from slumber only */
/* registers for each SATA port */
PORT_LST_ADDR = 0x00, /* command list DMA addr */
@@ -133,6 +137,7 @@ enum {
PORT_SCR_ACT = 0x34, /* SATA phy register: SActive */
PORT_SCR_NTF = 0x3c, /* SATA phy register: SNotification */
PORT_FBS = 0x40, /* FIS-based Switching */
+ PORT_DEVSLP = 0x44, /* device sleep */
/* PORT_IRQ_{STAT,MASK} bits */
PORT_IRQ_COLD_PRES = (1 << 31), /* cold presence detect */
@@ -186,6 +191,7 @@ enum {
PORT_CMD_ICC_PARTIAL = (0x2 << 28), /* Put i/f in partial state */
PORT_CMD_ICC_SLUMBER = (0x6 << 28), /* Put i/f in slumber state */
+ /* PORT_FBS bits */
PORT_FBS_DWE_OFFSET = 16, /* FBS device with error offset */
PORT_FBS_ADO_OFFSET = 12, /* FBS active dev optimization offset */
PORT_FBS_DEV_OFFSET = 8, /* FBS device to issue offset */
@@ -194,6 +200,15 @@ enum {
PORT_FBS_DEC = (1 << 1), /* FBS device error clear */
PORT_FBS_EN = (1 << 0), /* Enable FBS */
+ /* PORT_DEVSLP bits */
+ PORT_DEVSLP_DM_OFFSET = 25, /* DITO multiplier offset */
+ PORT_DEVSLP_DM_MASK = (0xf << 25), /* DITO multiplier mask */
+ PORT_DEVSLP_DITO_OFFSET = 15, /* DITO offset */
+ PORT_DEVSLP_MDAT_OFFSET = 10, /* Minimum assertion time */
+ PORT_DEVSLP_DETO_OFFSET = 2, /* DevSlp exit timeout */
+ PORT_DEVSLP_DSP = (1 << 1), /* DevSlp present */
+ PORT_DEVSLP_ADSE = (1 << 0), /* Aggressive DevSlp enable */
+
/* hpriv->flags bits */
#define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
@@ -302,6 +317,7 @@ struct ahci_host_priv {
u32 em_loc; /* enclosure management location */
u32 em_buf_sz; /* EM buffer size in byte */
u32 em_msg_type; /* EM message type */
+ struct clk *clk; /* Only for platforms supporting clk */
};
extern int ahci_ignore_sss;