2 # For a description of the syntax of this configuration file,
3 # see Documentation/kbuild/kconfig-language.txt.
6 menu "Firmware Drivers"
11 config ARM_PSCI_CHECKER
12 bool "ARM PSCI checker"
13 depends on ARM_PSCI_FW && HOTPLUG_CPU && CPU_IDLE && !TORTURE_TEST
15 Run the PSCI checker during startup. This checks that hotplug and
16 suspend operations work correctly when using PSCI.
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.
22 config ARM_SCMI_PROTOCOL
23 bool "ARM System Control and Management Interface (SCMI) Message Protocol"
24 depends on ARM || ARM64 || COMPILE_TEST
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.
40 This protocol library provides interface for all the client drivers
41 making use of the features offered by the SCMI.
43 config ARM_SCMI_POWER_DOMAIN
44 tristate "SCMI power domain driver"
45 depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
47 select PM_GENERIC_DOMAINS if PM
49 This enables support for the SCMI power domains which can be
50 enabled or disabled via the SCP firmware
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.
56 config ARM_SCPI_PROTOCOL
57 tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
58 depends on ARM || ARM64 || COMPILE_TEST
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
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
73 This protocol library provides interface for all the client drivers
74 making use of the features offered by the SCP.
76 config ARM_SCPI_POWER_DOMAIN
77 tristate "SCPI power domain driver"
78 depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
80 select PM_GENERIC_DOMAINS if PM
82 This enables support for the SCPI power domains which can be
83 enabled or disabled via the SCP firmware
85 config ARM_SDE_INTERFACE
86 bool "ARM Software Delegated Exception Interface (SDEI)"
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.
94 tristate "BIOS Enhanced Disk Drive calls determine boot disk"
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.
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.
106 bool "Sets default behavior for EDD detection to off"
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}'.
114 config FIRMWARE_MEMMAP
115 bool "Add firmware-provided memory map to sysfs" if EXPERT
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.
122 See also Documentation/ABI/testing/sysfs-firmware-memmap.
125 bool "Console device selection via EFI PCDP or HCDP table"
126 depends on ACPI && EFI && IA64
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.
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.
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.
143 You must also enable the appropriate drivers (serial, VGA, etc.)
145 See DIG64_HCDPv20_042804.pdf available from
146 <http://www.dig64.org/specifications/>
149 bool "Export DMI identification via sysfs to userspace"
153 Say Y here if you want to query SMBIOS/DMI system identification
154 information from userspace through /sys/class/dmi/id/ or if you want
155 DMI-based module auto-loading.
158 tristate "DMI table support in sysfs"
159 depends on SYSFS && DMI
162 Say Y or M here to enable the exporting of the raw DMI table
163 data via sysfs. This is useful for consuming the data without
164 requiring any access to /dev/mem at all. Tables are found
165 under /sys/firmware/dmi when this option is enabled and
168 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
171 config ISCSI_IBFT_FIND
172 bool "iSCSI Boot Firmware Table Attributes"
173 depends on X86 && ACPI
176 This option enables the kernel to find the region of memory
177 in which the ISCSI Boot Firmware Table (iBFT) resides. This
178 is necessary for iSCSI Boot Firmware Table Attributes module to work
182 tristate "iSCSI Boot Firmware Table Attributes module"
183 select ISCSI_BOOT_SYSFS
184 depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
187 This option enables support for detection and exposing of iSCSI
188 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
189 detect iSCSI boot parameters dynamically during system boot, say Y.
192 config RASPBERRYPI_FIRMWARE
193 tristate "Raspberry Pi Firmware Driver"
194 depends on BCM2835_MBOX
196 This option enables support for communicating with the firmware on the
200 tristate "QEMU fw_cfg device support in sysfs"
201 depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
202 depends on HAS_IOPORT_MAP
205 Say Y or M here to enable the exporting of the QEMU firmware
206 configuration (fw_cfg) file entries via sysfs. Entries are
207 found under /sys/firmware/fw_cfg when this option is enabled
210 config FW_CFG_SYSFS_CMDLINE
211 bool "QEMU fw_cfg device parameter parsing"
212 depends on FW_CFG_SYSFS
214 Allow the qemu_fw_cfg device to be initialized via the kernel
215 command line or using a module parameter.
216 WARNING: Using incorrect parameters (base address in particular)
217 may crash your system.
219 config INTEL_STRATIX10_SERVICE
220 tristate "Intel Stratix10 Service Layer"
221 depends on ARCH_STRATIX10 && HAVE_ARM_SMCCC
224 Intel Stratix10 service layer runs at privileged exception level,
225 interfaces with the service providers (FPGA manager is one of them)
226 and manages secure monitor call to communicate with secure monitor
227 software at secure monitor exception level.
229 Say Y here if you want Stratix10 service layer support.
233 depends on ARM || ARM64
234 select RESET_CONTROLLER
238 depends on QCOM_SCM && ARM
242 depends on QCOM_SCM && ARM64
244 config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
245 bool "Qualcomm download mode enabled by default"
248 A device with "download mode" enabled will upon an unexpected
249 warm-restart enter a special debug mode that allows the user to
250 "download" memory content over USB for offline postmortem analysis.
251 The feature can be enabled/disabled on the kernel command line.
253 Say Y here to enable "download mode" by default.
255 config TI_SCI_PROTOCOL
256 tristate "TI System Control Interface (TISCI) Message Protocol"
257 depends on TI_MESSAGE_MANAGER
259 TI System Control Interface (TISCI) Message Protocol is used to manage
260 compute systems such as ARM, DSP etc with the system controller in
261 complex System on Chip(SoC) such as those found on certain keystone
262 generation SoC from TI.
264 System controller provides various facilities including power
265 management function support.
267 This protocol library is used by client drivers to use the features
268 provided by the system controller.
270 config HAVE_ARM_SMCCC
273 source "drivers/firmware/broadcom/Kconfig"
274 source "drivers/firmware/google/Kconfig"
275 source "drivers/firmware/efi/Kconfig"
276 source "drivers/firmware/imx/Kconfig"
277 source "drivers/firmware/meson/Kconfig"
278 source "drivers/firmware/tegra/Kconfig"
279 source "drivers/firmware/xilinx/Kconfig"