1#
2# Kernel configuration file for the UFS Host Controller
3#
4# This code is based on drivers/scsi/ufs/Kconfig
5# Copyright (C) 2011-2013 Samsung India Software Operations
6#
7# Authors:
8#	Santosh Yaraganavi <santosh.sy@samsung.com>
9#	Vinayak Holikatti <h.vinayak@samsung.com>
10#
11# This program is free software; you can redistribute it and/or
12# modify it under the terms of the GNU General Public License
13# as published by the Free Software Foundation; either version 2
14# of the License, or (at your option) any later version.
15# See the COPYING file in the top-level directory or visit
16# <http://www.gnu.org/licenses/gpl-2.0.html>
17#
18# This program is distributed in the hope that it will be useful,
19# but WITHOUT ANY WARRANTY; without even the implied warranty of
20# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21# GNU General Public License for more details.
22#
23# This program is provided "AS IS" and "WITH ALL FAULTS" and
24# without warranty of any kind. You are solely responsible for
25# determining the appropriateness of using and distributing
26# the program and assume all risks associated with your exercise
27# of rights with respect to the program, including but not limited
28# to infringement of third party rights, the risks and costs of
29# program errors, damage to or loss of data, programs or equipment,
30# and unavailability or interruption of operations. Under no
31# circumstances will the contributor of this Program be liable for
32# any damages of any kind arising from your use or distribution of
33# this program.
34
35config SCSI_UFSHCD
36	tristate "Universal Flash Storage Controller Driver Core"
37	depends on SCSI && SCSI_DMA
38	select PM_DEVFREQ
39	select DEVFREQ_GOV_SIMPLE_ONDEMAND
40	select NLS
41	help
42	  This selects the support for UFS devices in Linux, say Y and make
43	  sure that you know the name of your UFS host adapter (the card
44	  inside your computer that "speaks" the UFS protocol, also
45	  called UFS Host Controller), because you will be asked for it.
46	  The module will be called ufshcd.
47
48	  To compile this driver as a module, choose M here and read
49	  <file:Documentation/scsi/ufs.rst>.
50	  However, do not compile this as a module if your root file system
51	  (the one containing the directory /) is located on a UFS device.
52
53config SCSI_UFSHCD_PCI
54	tristate "PCI bus based UFS Controller support"
55	depends on SCSI_UFSHCD && PCI
56	help
57	  This selects the PCI UFS Host Controller Interface. Select this if
58	  you have UFS Host Controller with PCI Interface.
59
60	  If you have a controller with this interface, say Y or M here.
61
62	  If unsure, say N.
63
64config SCSI_UFS_DWC_TC_PCI
65	tristate "DesignWare pci support using a G210 Test Chip"
66	depends on SCSI_UFSHCD_PCI
67	help
68	  Synopsys Test Chip is a PHY for prototyping purposes.
69
70	  If unsure, say N.
71
72config SCSI_UFSHCD_PLATFORM
73	tristate "Platform bus based UFS Controller support"
74	depends on SCSI_UFSHCD
75	depends on HAS_IOMEM
76	help
77	  This selects the UFS host controller support. Select this if
78	  you have an UFS controller on Platform bus.
79
80	  If you have a controller with this interface, say Y or M here.
81
82	  If unsure, say N.
83
84config SCSI_UFS_CDNS_PLATFORM
85	tristate "Cadence UFS Controller platform driver"
86	depends on SCSI_UFSHCD_PLATFORM
87	help
88	  This selects the Cadence-specific additions to UFSHCD platform driver.
89
90	  If unsure, say N.
91
92config SCSI_UFS_DWC_TC_PLATFORM
93	tristate "DesignWare platform support using a G210 Test Chip"
94	depends on SCSI_UFSHCD_PLATFORM
95	help
96	  Synopsys Test Chip is a PHY for prototyping purposes.
97
98	  If unsure, say N.
99
100config SCSI_UFS_QCOM
101	tristate "QCOM specific hooks to UFS controller platform driver"
102	depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM
103	select QCOM_SCM if SCSI_UFS_CRYPTO
104	select RESET_CONTROLLER
105	help
106	  This selects the QCOM specific additions to UFSHCD platform driver.
107	  UFS host on QCOM needs some vendor specific configuration before
108	  accessing the hardware which includes PHY configuration and vendor
109	  specific registers.
110
111	  Select this if you have UFS controller on QCOM chipset.
112	  If unsure, say N.
113
114config SCSI_UFS_MEDIATEK
115	tristate "Mediatek specific hooks to UFS controller platform driver"
116	depends on SCSI_UFSHCD_PLATFORM && ARCH_MEDIATEK
117	select PHY_MTK_UFS
118	select RESET_TI_SYSCON
119	help
120	  This selects the Mediatek specific additions to UFSHCD platform driver.
121	  UFS host on Mediatek needs some vendor specific configuration before
122	  accessing the hardware which includes PHY configuration and vendor
123	  specific registers.
124
125	  Select this if you have UFS controller on Mediatek chipset.
126
127	  If unsure, say N.
128
129config SCSI_UFS_HISI
130	tristate "Hisilicon specific hooks to UFS controller platform driver"
131	depends on (ARCH_HISI || COMPILE_TEST) && SCSI_UFSHCD_PLATFORM
132	help
133	  This selects the Hisilicon specific additions to UFSHCD platform driver.
134
135	  Select this if you have UFS controller on Hisilicon chipset.
136	  If unsure, say N.
137
138config SCSI_UFS_TI_J721E
139	tristate "TI glue layer for Cadence UFS Controller"
140	depends on OF && HAS_IOMEM && (ARCH_K3 || COMPILE_TEST)
141	help
142	  This selects driver for TI glue layer for Cadence UFS Host
143	  Controller IP.
144
145	  Selects this if you have TI platform with UFS controller.
146	  If unsure, say N.
147
148config SCSI_UFS_BSG
149	bool "Universal Flash Storage BSG device node"
150	depends on SCSI_UFSHCD
151	select BLK_DEV_BSGLIB
152	help
153	  Universal Flash Storage (UFS) is SCSI transport specification for
154	  accessing flash storage on digital cameras, mobile phones and
155	  consumer electronic devices.
156	  A UFS controller communicates with a UFS device by exchanging
157	  UFS Protocol Information Units (UPIUs).
158	  UPIUs can not only be used as a transport layer for the SCSI protocol
159	  but are also used by the UFS native command set.
160	  This transport driver supports exchanging UFS protocol information units
161	  with a UFS device. See also the ufshcd driver, which is a SCSI driver
162	  that supports UFS devices.
163
164	  Select this if you need a bsg device node for your UFS controller.
165	  If unsure, say N.
166
167config SCSI_UFS_EXYNOS
168	tristate "Exynos specific hooks to UFS controller platform driver"
169	depends on SCSI_UFSHCD_PLATFORM && (ARCH_EXYNOS || COMPILE_TEST)
170	help
171	  This selects the Samsung Exynos SoC specific additions to UFSHCD
172	  platform driver.  UFS host on Samsung Exynos SoC includes HCI and
173	  UNIPRO layer, and associates with UFS-PHY driver.
174
175	  Select this if you have UFS host controller on Samsung Exynos SoC.
176	  If unsure, say N.
177
178config SCSI_UFS_CRYPTO
179	bool "UFS Crypto Engine Support"
180	depends on SCSI_UFSHCD && BLK_INLINE_ENCRYPTION
181	help
182	  Enable Crypto Engine Support in UFS.
183	  Enabling this makes it possible for the kernel to use the crypto
184	  capabilities of the UFS device (if present) to perform crypto
185	  operations on data being transferred to/from the device.
186
187config SCSI_UFS_HPB
188	bool "Support UFS Host Performance Booster"
189	depends on SCSI_UFSHCD
190	help
191	  The UFS HPB feature improves random read performance. It caches
192	  L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB
193	  read command by piggybacking physical page number for bypassing FTL (flash
194	  translation layer)'s L2P address translation.
195
196config SCSI_UFS_FAULT_INJECTION
197	bool "UFS Fault Injection Support"
198	depends on SCSI_UFSHCD && FAULT_INJECTION
199	help
200	  Enable fault injection support in the UFS driver. This makes it easier
201	  to test the UFS error handler and abort handler.
202
203config SCSI_UFS_HWMON
204	bool "UFS  Temperature Notification"
205	depends on SCSI_UFSHCD=HWMON || HWMON=y
206	help
207	  This provides support for UFS hardware monitoring. If enabled,
208	  a hardware monitoring device will be created for the UFS device.
209
210	  If unsure, say N.
211