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#
# Kernel configuration file for the UFS Host Controller
#
# This code is based on drivers/scsi/ufs/Kconfig
# Copyright (C) 2011-2013 Samsung India Software Operations
#
# Authors:
# Santosh Yaraganavi <santosh.sy@samsung.com>
# Vinayak Holikatti <h.vinayak@samsung.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
# See the COPYING file in the top-level directory or visit
# <http://www.gnu.org/licenses/gpl-2.0.html>
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# This program is provided "AS IS" and "WITH ALL FAULTS" and
# without warranty of any kind. You are solely responsible for
# determining the appropriateness of using and distributing
# the program and assume all risks associated with your exercise
# of rights with respect to the program, including but not limited
# to infringement of third party rights, the risks and costs of
# program errors, damage to or loss of data, programs or equipment,
# and unavailability or interruption of operations. Under no
# circumstances will the contributor of this Program be liable for
# any damages of any kind arising from your use or distribution of
# this program.
config SCSI_UFSHCD
tristate "Universal Flash Storage Controller Driver Core"
depends on SCSI && SCSI_DMA
select PM_DEVFREQ
select DEVFREQ_GOV_SIMPLE_ONDEMAND
select NLS
---help---
This selects the support for UFS devices in Linux, say Y and make
sure that you know the name of your UFS host adapter (the card
inside your computer that "speaks" the UFS protocol, also
called UFS Host Controller), because you will be asked for it.
The module will be called ufshcd.
To compile this driver as a module, choose M here and read
<file:Documentation/scsi/ufs.txt>.
However, do not compile this as a module if your root file system
(the one containing the directory /) is located on a UFS device.
config SCSI_UFSHCD_PCI
tristate "PCI bus based UFS Controller support"
depends on SCSI_UFSHCD && PCI
---help---
This selects the PCI UFS Host Controller Interface. Select this if
you have UFS Host Controller with PCI Interface.
If you have a controller with this interface, say Y or M here.
If unsure, say N.
config SCSI_UFS_DWC_TC_PCI
tristate "DesignWare pci support using a G210 Test Chip"
depends on SCSI_UFSHCD_PCI
---help---
Synopsys Test Chip is a PHY for prototyping purposes.
If unsure, say N.
config SCSI_UFSHCD_PLATFORM
tristate "Platform bus based UFS Controller support"
depends on SCSI_UFSHCD
---help---
This selects the UFS host controller support. Select this if
you have an UFS controller on Platform bus.
If you have a controller with this interface, say Y or M here.
If unsure, say N.
config SCSI_UFS_CDNS_PLATFORM
tristate "Cadence UFS Controller platform driver"
depends on SCSI_UFSHCD_PLATFORM
help
This selects the Cadence-specific additions to UFSHCD platform driver.
If unsure, say N.
config SCSI_UFS_DWC_TC_PLATFORM
tristate "DesignWare platform support using a G210 Test Chip"
depends on SCSI_UFSHCD_PLATFORM
---help---
Synopsys Test Chip is a PHY for prototyping purposes.
If unsure, say N.
config SCSI_UFS_QCOM
tristate "QCOM specific hooks to UFS controller platform driver"
depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM
help
This selects the QCOM specific additions to UFSHCD platform driver.
UFS host on QCOM needs some vendor specific configuration before
accessing the hardware which includes PHY configuration and vendor
specific registers.
Select this if you have UFS controller on QCOM chipset.
If unsure, say N.
config SCSI_UFS_HISI
tristate "Hisilicon specific hooks to UFS controller platform driver"
depends on (ARCH_HISI || COMPILE_TEST) && SCSI_UFSHCD_PLATFORM
---help---
This selects the Hisilicon specific additions to UFSHCD platform driver.
Select this if you have UFS controller on Hisilicon chipset.
If unsure, say N.
config SCSI_UFS_BSG
bool "Universal Flash Storage BSG device node"
depends on SCSI_UFSHCD
select BLK_DEV_BSGLIB
help
Universal Flash Storage (UFS) is SCSI transport specification for
accessing flash storage on digital cameras, mobile phones and
consumer electronic devices.
A UFS controller communicates with a UFS device by exchanging
UFS Protocol Information Units (UPIUs).
UPIUs can not only be used as a transport layer for the SCSI protocol
but are also used by the UFS native command set.
This transport driver supports exchanging UFS protocol information units
with a UFS device. See also the ufshcd driver, which is a SCSI driver
that supports UFS devices.
Select this if you need a bsg device node for your UFS controller.
If unsure, say N.
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