xref: /openbmc/linux/drivers/firmware/Kconfig (revision ba61bb17)
1#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5
6menu "Firmware Drivers"
7
8config ARM_PSCI_FW
9	bool
10
11config ARM_PSCI_CHECKER
12	bool "ARM PSCI checker"
13	depends on ARM_PSCI_FW && HOTPLUG_CPU && CPU_IDLE && !TORTURE_TEST
14	help
15	  Run the PSCI checker during startup. This checks that hotplug and
16	  suspend operations work correctly when using PSCI.
17
18	  The torture tests may interfere with the PSCI checker by turning CPUs
19	  on and off through hotplug, so for now torture tests and PSCI checker
20	  are mutually exclusive.
21
22config ARM_SCMI_PROTOCOL
23	bool "ARM System Control and Management Interface (SCMI) Message Protocol"
24	depends on ARM || ARM64 || COMPILE_TEST
25	depends on MAILBOX
26	help
27	  ARM System Control and Management Interface (SCMI) protocol is a
28	  set of operating system-independent software interfaces that are
29	  used in system management. SCMI is extensible and currently provides
30	  interfaces for: Discovery and self-description of the interfaces
31	  it supports, Power domain management which is the ability to place
32	  a given device or domain into the various power-saving states that
33	  it supports, Performance management which is the ability to control
34	  the performance of a domain that is composed of compute engines
35	  such as application processors and other accelerators, Clock
36	  management which is the ability to set and inquire rates on platform
37	  managed clocks and Sensor management which is the ability to read
38	  sensor data, and be notified of sensor value.
39
40	  This protocol library provides interface for all the client drivers
41	  making use of the features offered by the SCMI.
42
43config ARM_SCMI_POWER_DOMAIN
44	tristate "SCMI power domain driver"
45	depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
46	default y
47	select PM_GENERIC_DOMAINS if PM
48	help
49	  This enables support for the SCMI power domains which can be
50	  enabled or disabled via the SCP firmware
51
52	  This driver can also be built as a module.  If so, the module
53	  will be called scmi_pm_domain. Note this may needed early in boot
54	  before rootfs may be available.
55
56config ARM_SCPI_PROTOCOL
57	tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
58	depends on ARM || ARM64 || COMPILE_TEST
59	depends on MAILBOX
60	help
61	  System Control and Power Interface (SCPI) Message Protocol is
62	  defined for the purpose of communication between the Application
63	  Cores(AP) and the System Control Processor(SCP). The MHU peripheral
64	  provides a mechanism for inter-processor communication between SCP
65	  and AP.
66
67	  SCP controls most of the power managament on the Application
68	  Processors. It offers control and management of: the core/cluster
69	  power states, various power domain DVFS including the core/cluster,
70	  certain system clocks configuration, thermal sensors and many
71	  others.
72
73	  This protocol library provides interface for all the client drivers
74	  making use of the features offered by the SCP.
75
76config ARM_SCPI_POWER_DOMAIN
77	tristate "SCPI power domain driver"
78	depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
79	default y
80	select PM_GENERIC_DOMAINS if PM
81	help
82	  This enables support for the SCPI power domains which can be
83	  enabled or disabled via the SCP firmware
84
85config ARM_SDE_INTERFACE
86	bool "ARM Software Delegated Exception Interface (SDEI)"
87	depends on ARM64
88	help
89	  The Software Delegated Exception Interface (SDEI) is an ARM
90	  standard for registering callbacks from the platform firmware
91	  into the OS. This is typically used to implement RAS notifications.
92
93config EDD
94	tristate "BIOS Enhanced Disk Drive calls determine boot disk"
95	depends on X86
96	help
97	  Say Y or M here if you want to enable BIOS Enhanced Disk Drive
98	  Services real mode BIOS calls to determine which disk
99	  BIOS tries boot from.  This information is then exported via sysfs.
100
101	  This option is experimental and is known to fail to boot on some
102          obscure configurations. Most disk controller BIOS vendors do
103          not yet implement this feature.
104
105config EDD_OFF
106	bool "Sets default behavior for EDD detection to off"
107	depends on EDD
108	default n
109	help
110	  Say Y if you want EDD disabled by default, even though it is compiled into the
111	  kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
112	  using the kernel parameter 'edd={on|skipmbr|off}'.
113
114config FIRMWARE_MEMMAP
115    bool "Add firmware-provided memory map to sysfs" if EXPERT
116    default X86
117    help
118      Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
119      That memory map is used for example by kexec to set up parameter area
120      for the next kernel, but can also be used for debugging purposes.
121
122      See also Documentation/ABI/testing/sysfs-firmware-memmap.
123
124config EFI_PCDP
125	bool "Console device selection via EFI PCDP or HCDP table"
126	depends on ACPI && EFI && IA64
127	default y if IA64
128	help
129	  If your firmware supplies the PCDP table, and you want to
130	  automatically use the primary console device it describes
131	  as the Linux console, say Y here.
132
133	  If your firmware supplies the HCDP table, and you want to
134	  use the first serial port it describes as the Linux console,
135	  say Y here.  If your EFI ConOut path contains only a UART
136	  device, it will become the console automatically.  Otherwise,
137	  you must specify the "console=hcdp" kernel boot argument.
138
139	  Neither the PCDP nor the HCDP affects naming of serial devices,
140	  so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
141	  on how the driver discovers devices.
142
143	  You must also enable the appropriate drivers (serial, VGA, etc.)
144
145	  See DIG64_HCDPv20_042804.pdf available from
146	  <http://www.dig64.org/specifications/>
147
148config DELL_RBU
149	tristate "BIOS update support for DELL systems via sysfs"
150	depends on X86
151	select FW_LOADER
152	select FW_LOADER_USER_HELPER
153	help
154	 Say m if you want to have the option of updating the BIOS for your
155	 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
156	 supporting application to communicate with the BIOS regarding the new
157	 image for the image update to take effect.
158	 See <file:Documentation/dell_rbu.txt> for more details on the driver.
159
160config DCDBAS
161	tristate "Dell Systems Management Base Driver"
162	depends on X86
163	help
164	  The Dell Systems Management Base Driver provides a sysfs interface
165	  for systems management software to perform System Management
166	  Interrupts (SMIs) and Host Control Actions (system power cycle or
167	  power off after OS shutdown) on certain Dell systems.
168
169	  See <file:Documentation/dcdbas.txt> for more details on the driver
170	  and the Dell systems on which Dell systems management software makes
171	  use of this driver.
172
173	  Say Y or M here to enable the driver for use by Dell systems
174	  management software such as Dell OpenManage.
175
176config DMIID
177    bool "Export DMI identification via sysfs to userspace"
178    depends on DMI
179    default y
180	help
181	  Say Y here if you want to query SMBIOS/DMI system identification
182	  information from userspace through /sys/class/dmi/id/ or if you want
183	  DMI-based module auto-loading.
184
185config DMI_SYSFS
186	tristate "DMI table support in sysfs"
187	depends on SYSFS && DMI
188	default n
189	help
190	  Say Y or M here to enable the exporting of the raw DMI table
191	  data via sysfs.  This is useful for consuming the data without
192	  requiring any access to /dev/mem at all.  Tables are found
193	  under /sys/firmware/dmi when this option is enabled and
194	  loaded.
195
196config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
197	bool
198
199config ISCSI_IBFT_FIND
200	bool "iSCSI Boot Firmware Table Attributes"
201	depends on X86 && ACPI
202	default n
203	help
204	  This option enables the kernel to find the region of memory
205	  in which the ISCSI Boot Firmware Table (iBFT) resides. This
206	  is necessary for iSCSI Boot Firmware Table Attributes module to work
207	  properly.
208
209config ISCSI_IBFT
210	tristate "iSCSI Boot Firmware Table Attributes module"
211	select ISCSI_BOOT_SYSFS
212	depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
213	default	n
214	help
215	  This option enables support for detection and exposing of iSCSI
216	  Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
217	  detect iSCSI boot parameters dynamically during system boot, say Y.
218	  Otherwise, say N.
219
220config RASPBERRYPI_FIRMWARE
221	tristate "Raspberry Pi Firmware Driver"
222	depends on BCM2835_MBOX
223	help
224	  This option enables support for communicating with the firmware on the
225	  Raspberry Pi.
226
227config FW_CFG_SYSFS
228	tristate "QEMU fw_cfg device support in sysfs"
229	depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
230	depends on HAS_IOPORT_MAP
231	default n
232	help
233	  Say Y or M here to enable the exporting of the QEMU firmware
234	  configuration (fw_cfg) file entries via sysfs. Entries are
235	  found under /sys/firmware/fw_cfg when this option is enabled
236	  and loaded.
237
238config FW_CFG_SYSFS_CMDLINE
239	bool "QEMU fw_cfg device parameter parsing"
240	depends on FW_CFG_SYSFS
241	help
242	  Allow the qemu_fw_cfg device to be initialized via the kernel
243	  command line or using a module parameter.
244	  WARNING: Using incorrect parameters (base address in particular)
245	  may crash your system.
246
247config QCOM_SCM
248	bool
249	depends on ARM || ARM64
250	select RESET_CONTROLLER
251
252config QCOM_SCM_32
253	def_bool y
254	depends on QCOM_SCM && ARM
255
256config QCOM_SCM_64
257	def_bool y
258	depends on QCOM_SCM && ARM64
259
260config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
261	bool "Qualcomm download mode enabled by default"
262	depends on QCOM_SCM
263	help
264	  A device with "download mode" enabled will upon an unexpected
265	  warm-restart enter a special debug mode that allows the user to
266	  "download" memory content over USB for offline postmortem analysis.
267	  The feature can be enabled/disabled on the kernel command line.
268
269	  Say Y here to enable "download mode" by default.
270
271config TI_SCI_PROTOCOL
272	tristate "TI System Control Interface (TISCI) Message Protocol"
273	depends on TI_MESSAGE_MANAGER
274	help
275	  TI System Control Interface (TISCI) Message Protocol is used to manage
276	  compute systems such as ARM, DSP etc with the system controller in
277	  complex System on Chip(SoC) such as those found on certain keystone
278	  generation SoC from TI.
279
280	  System controller provides various facilities including power
281	  management function support.
282
283	  This protocol library is used by client drivers to use the features
284	  provided by the system controller.
285
286config HAVE_ARM_SMCCC
287	bool
288
289source "drivers/firmware/broadcom/Kconfig"
290source "drivers/firmware/google/Kconfig"
291source "drivers/firmware/efi/Kconfig"
292source "drivers/firmware/meson/Kconfig"
293source "drivers/firmware/tegra/Kconfig"
294
295endmenu
296