#
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# Kernel configuration file for the UFS Host Controller
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#
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# This code is based on drivers/scsi/ufs/Kconfig
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# Copyright (C) 2011-2013 Samsung India Software Operations
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#
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# Authors:
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# Santosh Yaraganavi <santosh.sy@samsung.com>
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# Vinayak Holikatti <h.vinayak@samsung.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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# See the COPYING file in the top-level directory or visit
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# <http://www.gnu.org/licenses/gpl-2.0.html>
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# This program is provided "AS IS" and "WITH ALL FAULTS" and
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# without warranty of any kind. You are solely responsible for
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# determining the appropriateness of using and distributing
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# the program and assume all risks associated with your exercise
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# of rights with respect to the program, including but not limited
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# to infringement of third party rights, the risks and costs of
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# program errors, damage to or loss of data, programs or equipment,
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# and unavailability or interruption of operations. Under no
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# circumstances will the contributor of this Program be liable for
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# any damages of any kind arising from your use or distribution of
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# this program.
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config SCSI_UFSHCD
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tristate "Universal Flash Storage Controller Driver Core"
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depends on SCSI && SCSI_DMA
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select PM_DEVFREQ
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select DEVFREQ_GOV_SIMPLE_ONDEMAND
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select NLS
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help
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This selects the support for UFS devices in Linux, say Y and make
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sure that you know the name of your UFS host adapter (the card
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inside your computer that "speaks" the UFS protocol, also
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called UFS Host Controller), because you will be asked for it.
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The module will be called ufshcd.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/ufs.rst>.
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However, do not compile this as a module if your root file system
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(the one containing the directory /) is located on a UFS device.
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config SCSI_UFSHCD_PCI
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tristate "PCI bus based UFS Controller support"
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depends on SCSI_UFSHCD && PCI
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help
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This selects the PCI UFS Host Controller Interface. Select this if
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you have UFS Host Controller with PCI Interface.
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If you have a controller with this interface, say Y or M here.
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If unsure, say N.
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config SCSI_UFS_DWC_TC_PCI
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tristate "DesignWare pci support using a G210 Test Chip"
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depends on SCSI_UFSHCD_PCI
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help
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Synopsys Test Chip is a PHY for prototyping purposes.
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If unsure, say N.
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config SCSI_UFSHCD_PLATFORM
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tristate "Platform bus based UFS Controller support"
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depends on SCSI_UFSHCD
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depends on HAS_IOMEM
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help
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This selects the UFS host controller support. Select this if
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you have an UFS controller on Platform bus.
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If you have a controller with this interface, say Y or M here.
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If unsure, say N.
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config SCSI_UFS_CDNS_PLATFORM
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tristate "Cadence UFS Controller platform driver"
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depends on SCSI_UFSHCD_PLATFORM
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help
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This selects the Cadence-specific additions to UFSHCD platform driver.
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If unsure, say N.
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config SCSI_UFS_DWC_TC_PLATFORM
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tristate "DesignWare platform support using a G210 Test Chip"
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depends on SCSI_UFSHCD_PLATFORM
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help
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Synopsys Test Chip is a PHY for prototyping purposes.
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If unsure, say N.
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config SCSI_UFS_QCOM
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tristate "QCOM specific hooks to UFS controller platform driver"
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depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM
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select QCOM_SCM
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select RESET_CONTROLLER
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help
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This selects the QCOM specific additions to UFSHCD platform driver.
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UFS host on QCOM needs some vendor specific configuration before
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accessing the hardware which includes PHY configuration and vendor
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specific registers.
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Select this if you have UFS controller on QCOM chipset.
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If unsure, say N.
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config SCSI_UFS_MEDIATEK
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tristate "Mediatek specific hooks to UFS controller platform driver"
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depends on SCSI_UFSHCD_PLATFORM && ARCH_MEDIATEK
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select PHY_MTK_UFS
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select RESET_TI_SYSCON
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help
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This selects the Mediatek specific additions to UFSHCD platform driver.
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UFS host on Mediatek needs some vendor specific configuration before
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accessing the hardware which includes PHY configuration and vendor
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specific registers.
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Select this if you have UFS controller on Mediatek chipset.
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If unsure, say N.
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config SCSI_UFS_HISI
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tristate "Hisilicon specific hooks to UFS controller platform driver"
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depends on (ARCH_HISI || COMPILE_TEST) && SCSI_UFSHCD_PLATFORM
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help
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This selects the Hisilicon specific additions to UFSHCD platform driver.
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Select this if you have UFS controller on Hisilicon chipset.
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If unsure, say N.
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config SCSI_UFS_TI_J721E
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tristate "TI glue layer for Cadence UFS Controller"
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depends on OF && HAS_IOMEM && (ARCH_K3 || COMPILE_TEST)
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help
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This selects driver for TI glue layer for Cadence UFS Host
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Controller IP.
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Selects this if you have TI platform with UFS controller.
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If unsure, say N.
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config SCSI_UFS_BSG
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bool "Universal Flash Storage BSG device node"
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depends on SCSI_UFSHCD
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select BLK_DEV_BSGLIB
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help
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Universal Flash Storage (UFS) is SCSI transport specification for
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accessing flash storage on digital cameras, mobile phones and
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consumer electronic devices.
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A UFS controller communicates with a UFS device by exchanging
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UFS Protocol Information Units (UPIUs).
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UPIUs can not only be used as a transport layer for the SCSI protocol
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but are also used by the UFS native command set.
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This transport driver supports exchanging UFS protocol information units
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with a UFS device. See also the ufshcd driver, which is a SCSI driver
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that supports UFS devices.
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Select this if you need a bsg device node for your UFS controller.
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If unsure, say N.
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config SCSI_UFS_EXYNOS
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tristate "EXYNOS specific hooks to UFS controller platform driver"
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depends on SCSI_UFSHCD_PLATFORM && (ARCH_EXYNOS || COMPILE_TEST)
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help
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This selects the EXYNOS specific additions to UFSHCD platform driver.
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UFS host on EXYNOS includes HCI and UNIPRO layer, and associates with
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UFS-PHY driver.
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Select this if you have UFS host controller on EXYNOS chipset.
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If unsure, say N.
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config SCSI_UFS_CRYPTO
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bool "UFS Crypto Engine Support"
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depends on SCSI_UFSHCD && BLK_INLINE_ENCRYPTION
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help
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Enable Crypto Engine Support in UFS.
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Enabling this makes it possible for the kernel to use the crypto
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capabilities of the UFS device (if present) to perform crypto
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operations on data being transferred to/from the device.
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config SCSI_UFS_HPB
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bool "Support UFS Host Performance Booster"
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depends on SCSI_UFSHCD
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help
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The UFS HPB feature improves random read performance. It caches
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L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB
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read command by piggybacking physical page number for bypassing FTL (flash
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translation layer)'s L2P address translation.
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