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.rst.
7 menu "Firmware Drivers"
9 source "drivers/firmware/arm_scmi/Kconfig"
11 config ARM_SCPI_PROTOCOL
12 tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
13 depends on ARM || ARM64 || COMPILE_TEST
16 System Control and Power Interface (SCPI) Message Protocol is
17 defined for the purpose of communication between the Application
18 Cores(AP) and the System Control Processor(SCP). The MHU peripheral
19 provides a mechanism for inter-processor communication between SCP
22 SCP controls most of the power management on the Application
23 Processors. It offers control and management of: the core/cluster
24 power states, various power domain DVFS including the core/cluster,
25 certain system clocks configuration, thermal sensors and many
28 This protocol library provides interface for all the client drivers
29 making use of the features offered by the SCP.
31 config ARM_SDE_INTERFACE
32 bool "ARM Software Delegated Exception Interface (SDEI)"
34 depends on ACPI_APEI_GHES
36 The Software Delegated Exception Interface (SDEI) is an ARM
37 standard for registering callbacks from the platform firmware
38 into the OS. This is typically used to implement RAS notifications.
41 tristate "BIOS Enhanced Disk Drive calls determine boot disk"
44 Say Y or M here if you want to enable BIOS Enhanced Disk Drive
45 Services real mode BIOS calls to determine which disk
46 BIOS tries boot from. This information is then exported via sysfs.
48 This option is experimental and is known to fail to boot on some
49 obscure configurations. Most disk controller BIOS vendors do
50 not yet implement this feature.
53 bool "Sets default behavior for EDD detection to off"
57 Say Y if you want EDD disabled by default, even though it is compiled into the
58 kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
59 using the kernel parameter 'edd={on|skipmbr|off}'.
61 config FIRMWARE_MEMMAP
62 bool "Add firmware-provided memory map to sysfs" if EXPERT
65 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
66 That memory map is used for example by kexec to set up parameter area
67 for the next kernel, but can also be used for debugging purposes.
69 See also Documentation/ABI/testing/sysfs-firmware-memmap.
72 bool "Export DMI identification via sysfs to userspace"
76 Say Y here if you want to query SMBIOS/DMI system identification
77 information from userspace through /sys/class/dmi/id/ or if you want
78 DMI-based module auto-loading.
81 tristate "DMI table support in sysfs"
82 depends on SYSFS && DMI
85 Say Y or M here to enable the exporting of the raw DMI table
86 data via sysfs. This is useful for consuming the data without
87 requiring any access to /dev/mem at all. Tables are found
88 under /sys/firmware/dmi when this option is enabled and
91 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
94 config ISCSI_IBFT_FIND
95 bool "iSCSI Boot Firmware Table Attributes"
96 depends on X86 && ISCSI_IBFT
99 This option enables the kernel to find the region of memory
100 in which the ISCSI Boot Firmware Table (iBFT) resides. This
101 is necessary for iSCSI Boot Firmware Table Attributes module to work
105 tristate "iSCSI Boot Firmware Table Attributes module"
106 select ISCSI_BOOT_SYSFS
107 select ISCSI_IBFT_FIND if X86
108 depends on ACPI && SCSI && SCSI_LOWLEVEL
111 This option enables support for detection and exposing of iSCSI
112 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
113 detect iSCSI boot parameters dynamically during system boot, say Y.
116 config RASPBERRYPI_FIRMWARE
117 tristate "Raspberry Pi Firmware Driver"
118 depends on BCM2835_MBOX
120 This option enables support for communicating with the firmware on the
124 tristate "QEMU fw_cfg device support in sysfs"
125 depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || RISCV || SPARC || X86)
126 depends on HAS_IOPORT_MAP
129 Say Y or M here to enable the exporting of the QEMU firmware
130 configuration (fw_cfg) file entries via sysfs. Entries are
131 found under /sys/firmware/fw_cfg when this option is enabled
134 config FW_CFG_SYSFS_CMDLINE
135 bool "QEMU fw_cfg device parameter parsing"
136 depends on FW_CFG_SYSFS
138 Allow the qemu_fw_cfg device to be initialized via the kernel
139 command line or using a module parameter.
140 WARNING: Using incorrect parameters (base address in particular)
141 may crash your system.
143 config INTEL_STRATIX10_SERVICE
144 tristate "Intel Stratix10 Service Layer"
145 depends on ARCH_INTEL_SOCFPGA && ARM64 && HAVE_ARM_SMCCC
148 Intel Stratix10 service layer runs at privileged exception level,
149 interfaces with the service providers (FPGA manager is one of them)
150 and manages secure monitor call to communicate with secure monitor
151 software at secure monitor exception level.
153 Say Y here if you want Stratix10 service layer support.
155 config INTEL_STRATIX10_RSU
156 tristate "Intel Stratix10 Remote System Update"
157 depends on INTEL_STRATIX10_SERVICE
159 The Intel Remote System Update (RSU) driver exposes interfaces
160 access through the Intel Service Layer to user space via sysfs
161 device attribute nodes. The RSU interfaces report/control some of
162 the optional RSU features of the Stratix 10 SoC FPGA.
164 The RSU provides a way for customers to update the boot
165 configuration of a Stratix 10 SoC device with significantly reduced
166 risk of corrupting the bitstream storage and bricking the system.
168 Enable RSU support if you are using an Intel SoC FPGA with the RSU
169 feature enabled and you want Linux user space control.
171 Say Y here if you want Intel RSU support.
174 tristate "MTK ADSP IPC Protocol driver"
175 depends on MTK_ADSP_MBOX
177 Say yes here to add support for the MediaTek ADSP IPC
178 between host AP (Linux) and the firmware running on ADSP.
179 ADSP exists on some mtk processors.
180 Client might use shared memory to exchange information with ADSP.
184 select BOOT_VESA_SUPPORT
187 config SYSFB_SIMPLEFB
188 bool "Mark VGA/VBE/EFI FB as generic system framebuffer"
189 depends on X86 || EFI
192 Firmwares often provide initial graphics framebuffers so the BIOS,
193 bootloader or kernel can show basic video-output during boot for
194 user-guidance and debugging. Historically, x86 used the VESA BIOS
195 Extensions and EFI-framebuffers for this, which are mostly limited
196 to x86 BIOS or EFI systems.
197 This option, if enabled, marks VGA/VBE/EFI framebuffers as generic
198 framebuffers so the new generic system-framebuffer drivers can be
199 used instead. If the framebuffer is not compatible with the generic
200 modes, it is advertised as fallback platform framebuffer so legacy
201 drivers like efifb, vesafb and uvesafb can pick it up.
202 If this option is not selected, all system framebuffers are always
203 marked as fallback platform framebuffers as usual.
205 Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will
206 not be able to pick up generic system framebuffers if this option
207 is selected. You are highly encouraged to enable simplefb as
208 replacement if you select this option. simplefb can correctly deal
209 with generic system framebuffers. But you should still keep vesafb
210 and others enabled as fallback if a system framebuffer is
211 incompatible with simplefb.
215 config TI_SCI_PROTOCOL
216 tristate "TI System Control Interface (TISCI) Message Protocol"
217 depends on TI_MESSAGE_MANAGER
219 TI System Control Interface (TISCI) Message Protocol is used to manage
220 compute systems such as ARM, DSP etc with the system controller in
221 complex System on Chip(SoC) such as those found on certain keystone
222 generation SoC from TI.
224 System controller provides various facilities including power
225 management function support.
227 This protocol library is used by client drivers to use the features
228 provided by the system controller.
230 config TRUSTED_FOUNDATIONS
231 bool "Trusted Foundations secure monitor support"
232 depends on ARM && CPU_V7
234 Some devices (including most early Tegra-based consumer devices on
235 the market) are booted with the Trusted Foundations secure monitor
236 active, requiring some core operations to be performed by the secure
237 monitor instead of the kernel.
239 This option allows the kernel to invoke the secure monitor whenever
240 required on devices using Trusted Foundations. See the functions and
241 comments in linux/firmware/trusted_foundations.h or the device tree
242 bindings for "tlm,trusted-foundations" for details on how to use it.
244 Choose N if you don't know what this is about.
246 config TURRIS_MOX_RWTM
247 tristate "Turris Mox rWTM secure firmware driver"
248 depends on ARCH_MVEBU || COMPILE_TEST
249 depends on HAS_DMA && OF
252 select ARMADA_37XX_RWTM_MBOX
254 This driver communicates with the firmware on the Cortex-M3 secure
255 processor of the Turris Mox router. Enable if you are building for
256 Turris Mox, and you will be able to read the device serial number and
257 other manufacturing data and also utilize the Entropy Bit Generator
258 for hardware random number generation.
260 source "drivers/firmware/arm_ffa/Kconfig"
261 source "drivers/firmware/broadcom/Kconfig"
262 source "drivers/firmware/cirrus/Kconfig"
263 source "drivers/firmware/google/Kconfig"
264 source "drivers/firmware/efi/Kconfig"
265 source "drivers/firmware/imx/Kconfig"
266 source "drivers/firmware/meson/Kconfig"
267 source "drivers/firmware/microchip/Kconfig"
268 source "drivers/firmware/psci/Kconfig"
269 source "drivers/firmware/qcom/Kconfig"
270 source "drivers/firmware/smccc/Kconfig"
271 source "drivers/firmware/tegra/Kconfig"
272 source "drivers/firmware/xilinx/Kconfig"