1 # SPDX-License-Identifier: GPL-2.0-only
3 # For a description of the syntax of this configuration file,
4 # see Documentation/kbuild/kconfig-language.txt.
7 menu "Firmware Drivers"
9 config ARM_SCMI_PROTOCOL
10 bool "ARM System Control and Management Interface (SCMI) Message Protocol"
11 depends on ARM || ARM64 || COMPILE_TEST
14 ARM System Control and Management Interface (SCMI) protocol is a
15 set of operating system-independent software interfaces that are
16 used in system management. SCMI is extensible and currently provides
17 interfaces for: Discovery and self-description of the interfaces
18 it supports, Power domain management which is the ability to place
19 a given device or domain into the various power-saving states that
20 it supports, Performance management which is the ability to control
21 the performance of a domain that is composed of compute engines
22 such as application processors and other accelerators, Clock
23 management which is the ability to set and inquire rates on platform
24 managed clocks and Sensor management which is the ability to read
25 sensor data, and be notified of sensor value.
27 This protocol library provides interface for all the client drivers
28 making use of the features offered by the SCMI.
30 config ARM_SCMI_POWER_DOMAIN
31 tristate "SCMI power domain driver"
32 depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
34 select PM_GENERIC_DOMAINS if PM
36 This enables support for the SCMI power domains which can be
37 enabled or disabled via the SCP firmware
39 This driver can also be built as a module. If so, the module
40 will be called scmi_pm_domain. Note this may needed early in boot
41 before rootfs may be available.
43 config ARM_SCPI_PROTOCOL
44 tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
45 depends on ARM || ARM64 || COMPILE_TEST
48 System Control and Power Interface (SCPI) Message Protocol is
49 defined for the purpose of communication between the Application
50 Cores(AP) and the System Control Processor(SCP). The MHU peripheral
51 provides a mechanism for inter-processor communication between SCP
54 SCP controls most of the power managament on the Application
55 Processors. It offers control and management of: the core/cluster
56 power states, various power domain DVFS including the core/cluster,
57 certain system clocks configuration, thermal sensors and many
60 This protocol library provides interface for all the client drivers
61 making use of the features offered by the SCP.
63 config ARM_SCPI_POWER_DOMAIN
64 tristate "SCPI power domain driver"
65 depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
67 select PM_GENERIC_DOMAINS if PM
69 This enables support for the SCPI power domains which can be
70 enabled or disabled via the SCP firmware
72 config ARM_SDE_INTERFACE
73 bool "ARM Software Delegated Exception Interface (SDEI)"
76 The Software Delegated Exception Interface (SDEI) is an ARM
77 standard for registering callbacks from the platform firmware
78 into the OS. This is typically used to implement RAS notifications.
81 tristate "BIOS Enhanced Disk Drive calls determine boot disk"
84 Say Y or M here if you want to enable BIOS Enhanced Disk Drive
85 Services real mode BIOS calls to determine which disk
86 BIOS tries boot from. This information is then exported via sysfs.
88 This option is experimental and is known to fail to boot on some
89 obscure configurations. Most disk controller BIOS vendors do
90 not yet implement this feature.
93 bool "Sets default behavior for EDD detection to off"
97 Say Y if you want EDD disabled by default, even though it is compiled into the
98 kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
99 using the kernel parameter 'edd={on|skipmbr|off}'.
101 config FIRMWARE_MEMMAP
102 bool "Add firmware-provided memory map to sysfs" if EXPERT
105 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
106 That memory map is used for example by kexec to set up parameter area
107 for the next kernel, but can also be used for debugging purposes.
109 See also Documentation/ABI/testing/sysfs-firmware-memmap.
112 bool "Console device selection via EFI PCDP or HCDP table"
113 depends on ACPI && EFI && IA64
116 If your firmware supplies the PCDP table, and you want to
117 automatically use the primary console device it describes
118 as the Linux console, say Y here.
120 If your firmware supplies the HCDP table, and you want to
121 use the first serial port it describes as the Linux console,
122 say Y here. If your EFI ConOut path contains only a UART
123 device, it will become the console automatically. Otherwise,
124 you must specify the "console=hcdp" kernel boot argument.
126 Neither the PCDP nor the HCDP affects naming of serial devices,
127 so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
128 on how the driver discovers devices.
130 You must also enable the appropriate drivers (serial, VGA, etc.)
132 See DIG64_HCDPv20_042804.pdf available from
133 <http://www.dig64.org/specifications/>
136 bool "Export DMI identification via sysfs to userspace"
140 Say Y here if you want to query SMBIOS/DMI system identification
141 information from userspace through /sys/class/dmi/id/ or if you want
142 DMI-based module auto-loading.
145 tristate "DMI table support in sysfs"
146 depends on SYSFS && DMI
149 Say Y or M here to enable the exporting of the raw DMI table
150 data via sysfs. This is useful for consuming the data without
151 requiring any access to /dev/mem at all. Tables are found
152 under /sys/firmware/dmi when this option is enabled and
155 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
158 config ISCSI_IBFT_FIND
159 bool "iSCSI Boot Firmware Table Attributes"
160 depends on X86 && ACPI
163 This option enables the kernel to find the region of memory
164 in which the ISCSI Boot Firmware Table (iBFT) resides. This
165 is necessary for iSCSI Boot Firmware Table Attributes module to work
169 tristate "iSCSI Boot Firmware Table Attributes module"
170 select ISCSI_BOOT_SYSFS
171 depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
174 This option enables support for detection and exposing of iSCSI
175 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
176 detect iSCSI boot parameters dynamically during system boot, say Y.
179 config RASPBERRYPI_FIRMWARE
180 tristate "Raspberry Pi Firmware Driver"
181 depends on BCM2835_MBOX
183 This option enables support for communicating with the firmware on the
187 tristate "QEMU fw_cfg device support in sysfs"
188 depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
189 depends on HAS_IOPORT_MAP
192 Say Y or M here to enable the exporting of the QEMU firmware
193 configuration (fw_cfg) file entries via sysfs. Entries are
194 found under /sys/firmware/fw_cfg when this option is enabled
197 config FW_CFG_SYSFS_CMDLINE
198 bool "QEMU fw_cfg device parameter parsing"
199 depends on FW_CFG_SYSFS
201 Allow the qemu_fw_cfg device to be initialized via the kernel
202 command line or using a module parameter.
203 WARNING: Using incorrect parameters (base address in particular)
204 may crash your system.
206 config INTEL_STRATIX10_SERVICE
207 tristate "Intel Stratix10 Service Layer"
208 depends on ARCH_STRATIX10 && HAVE_ARM_SMCCC
211 Intel Stratix10 service layer runs at privileged exception level,
212 interfaces with the service providers (FPGA manager is one of them)
213 and manages secure monitor call to communicate with secure monitor
214 software at secure monitor exception level.
216 Say Y here if you want Stratix10 service layer support.
220 depends on ARM || ARM64
221 select RESET_CONTROLLER
225 depends on QCOM_SCM && ARM
229 depends on QCOM_SCM && ARM64
231 config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
232 bool "Qualcomm download mode enabled by default"
235 A device with "download mode" enabled will upon an unexpected
236 warm-restart enter a special debug mode that allows the user to
237 "download" memory content over USB for offline postmortem analysis.
238 The feature can be enabled/disabled on the kernel command line.
240 Say Y here to enable "download mode" by default.
242 config TI_SCI_PROTOCOL
243 tristate "TI System Control Interface (TISCI) Message Protocol"
244 depends on TI_MESSAGE_MANAGER
246 TI System Control Interface (TISCI) Message Protocol is used to manage
247 compute systems such as ARM, DSP etc with the system controller in
248 complex System on Chip(SoC) such as those found on certain keystone
249 generation SoC from TI.
251 System controller provides various facilities including power
252 management function support.
254 This protocol library is used by client drivers to use the features
255 provided by the system controller.
257 config TRUSTED_FOUNDATIONS
258 bool "Trusted Foundations secure monitor support"
259 depends on ARM && CPU_V7
261 Some devices (including most early Tegra-based consumer devices on
262 the market) are booted with the Trusted Foundations secure monitor
263 active, requiring some core operations to be performed by the secure
264 monitor instead of the kernel.
266 This option allows the kernel to invoke the secure monitor whenever
267 required on devices using Trusted Foundations. See the functions and
268 comments in linux/firmware/trusted_foundations.h or the device tree
269 bindings for "tlm,trusted-foundations" for details on how to use it.
271 Choose N if you don't know what this is about.
273 config HAVE_ARM_SMCCC
276 source "drivers/firmware/psci/Kconfig"
277 source "drivers/firmware/broadcom/Kconfig"
278 source "drivers/firmware/google/Kconfig"
279 source "drivers/firmware/efi/Kconfig"
280 source "drivers/firmware/imx/Kconfig"
281 source "drivers/firmware/meson/Kconfig"
282 source "drivers/firmware/tegra/Kconfig"
283 source "drivers/firmware/xilinx/Kconfig"