path: root/drivers/ata/Kconfig

# SPDX-License-Identifier: GPL-2.0
#
# SATA/PATA driver configuration
#

config HAVE_PATA_PLATFORM
	bool
	help
	  This is an internal configuration node for any machine that
	  uses pata-platform driver to enable the relevant driver in the
	  configuration structure without having to submit endless patches
	  to update the PATA_PLATFORM entry.

menuconfig ATA
	tristate "Serial ATA and Parallel ATA drivers (libata)"
	depends on HAS_IOMEM
	depends on BLOCK
	select SCSI
	select GLOB
	help
	  If you want to use an ATA hard disk, ATA tape drive, ATA CD-ROM or
	  any other ATA device under Linux, say Y and make sure that you know
	  the name of your ATA host adapter (the card inside your computer
	  that "speaks" the ATA protocol, also called ATA controller),
	  because you will be asked for it.

	  NOTE: ATA enables basic SCSI support; *however*,
	  'SCSI disk support', 'SCSI tape support', or
	  'SCSI CDROM support' may also be needed,
	  depending on your hardware configuration.

if ATA

config ATA_NONSTANDARD
       bool

config SATA_HOST
	bool

config PATA_TIMINGS
	bool

config ATA_VERBOSE_ERROR
	bool "Verbose ATA error reporting"
	default y
	help
	  This option adds parsing of ATA command descriptions and error bits
	  in libata kernel output, making it easier to interpret.
	  This option will enlarge the kernel by approx. 6KB. Disable it only
	  if kernel size is more important than ease of debugging.

	  If unsure, say Y.

config ATA_FORCE
	bool "\"libata.force=\" kernel parameter support" if EXPERT
	default y
	help
	  This option adds support for "libata.force=" kernel parameter for
	  forcing configuration settings.

	  For further information, please read
	  <file:Documentation/admin-guide/kernel-parameters.txt>.

	  This option will enlarge the kernel by approx. 3KB. Disable it if
	  kernel size is more important than ability to override the default
	  configuration settings.

	  If unsure, say Y.

config ATA_ACPI
	bool "ATA ACPI Support"
	depends on ACPI
	select PATA_TIMINGS
	default y
	help
	  This option adds support for ATA-related ACPI objects.
	  These ACPI objects add the ability to retrieve taskfiles
	  from the ACPI BIOS and write them to the disk controller.
	  These objects may be related to performance, security,
	  power management, or other areas.
	  You can disable this at kernel boot time by using the
	  option libata.noacpi=1

config SATA_ZPODD
	bool "SATA Zero Power Optical Disc Drive (ZPODD) support"
	depends on ATA_ACPI && PM
	help
	  This option adds support for SATA Zero Power Optical Disc
	  Drive (ZPODD). It requires both the ODD and the platform
	  support, and if enabled, will automatically power on/off the
	  ODD when certain condition is satisfied. This does not impact
	  end user's experience of the ODD, only power is saved when
	  the ODD is not in use (i.e. no disc inside).

	  If unsure, say N.

config SATA_PMP
	bool "SATA Port Multiplier support"
	depends on SATA_HOST
	default y
	help
	  This option adds support for SATA Port Multipliers
	  (the SATA version of an ethernet hub, or SAS expander).

if HAS_DMA

comment "Controllers with non-SFF native interface"

config SATA_AHCI
	tristate "AHCI SATA support"
	depends on PCI
	select SATA_HOST
	help
	  This option enables support for AHCI Serial ATA.

	  If unsure, say N.

config SATA_MOBILE_LPM_POLICY
	int "Default SATA Link Power Management policy"
	range 0 5
	default 3
	depends on SATA_AHCI
	help
	  Select the Default SATA Link Power Management (LPM) policy to use
	  for chipsets / "South Bridges" supporting low-power modes. Such
	  chipsets are ubiquitous across laptops, desktops and servers.
	  Each policy combines power saving states and features:
	   - Partial: The Phy logic is powered but is in a reduced power
                      state. The exit latency from this state is no longer than
                      10us).
	   - Slumber: The Phy logic is powered but is in an even lower power
                      state. The exit latency from this state is potentially
		      longer, but no longer than 10ms.
	   - DevSleep: The Phy logic may be powered down. The exit latency from
	               this state is no longer than 20 ms, unless otherwise
		       specified by DETO in the device Identify Device Data log.
	   - HIPM: Host Initiated Power Management (host automatically
		   transitions to partial and slumber).
	   - DIPM: Device Initiated Power Management (device automatically
		   transitions to partial and slumber).

	  The possible values for the default SATA link power management
	  policies are:
		0 => Keep firmware settings
		1 => No power savings (maximum performance)
		2 => HIPM (Partial)
		3 => HIPM (Partial) and DIPM (Partial and Slumber)
		4 => HIPM (Partial and DevSleep) and DIPM (Partial and Slumber)
		5 => HIPM (Slumber and DevSleep) and DIPM (Partial and Slumber)

	  Excluding the value 0, higher values represent policies with higher
	  power savings.

config SATA_AHCI_PLATFORM
	tristate "Platform AHCI SATA support"
	select SATA_HOST
	help
	  This option enables support for Platform AHCI Serial ATA
	  controllers.

	  If unsure, say N.

config AHCI_BRCM
	tristate "Broadcom AHCI SATA support"
	depends on ARCH_BRCMSTB || BMIPS_GENERIC || ARCH_BCM_NSP || \
		   ARCH_BCMBCA || COMPILE_TEST
	select SATA_HOST
	help
	  This option enables support for the AHCI SATA3 controller found on
	  Broadcom SoC's.

	  If unsure, say N.

config AHCI_DA850
	tristate "DaVinci DA850 AHCI SATA support"
	depends on ARCH_DAVINCI_DA850 || COMPILE_TEST
	select SATA_HOST
	help
	  This option enables support for the DaVinci DA850 SoC's
	  onboard AHCI SATA.

	  If unsure, say N.

config AHCI_DM816
	tristate "DaVinci DM816 AHCI SATA support"
	depends on ARCH_OMAP2PLUS || COMPILE_TEST
	select SATA_HOST
	help
	  This option enables support for the DaVinci DM816 SoC's
	  onboard AHCI SATA controller.

	  If unsure, say N.

config AHCI_DWC
	tristate "Synopsys DWC AHCI SATA support"
	select SATA_HOST
	select MFD_SYSCON if (MIPS_BAIKAL_T1 || COMPILE_TEST)
	help
	  This option enables support for the Synopsys DWC AHCI SATA
	  controller implementation.

	  If unsure, say N.

config AHCI_ST
	tristate "ST AHCI SATA support"
	depends on ARCH_STI || COMPILE_TEST
	select SATA_HOST