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 && !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_SCPI_PROTOCOL
23 tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
26 System Control and Power Interface (SCPI) Message Protocol is
27 defined for the purpose of communication between the Application
28 Cores(AP) and the System Control Processor(SCP). The MHU peripheral
29 provides a mechanism for inter-processor communication between SCP
32 SCP controls most of the power managament on the Application
33 Processors. It offers control and management of: the core/cluster
34 power states, various power domain DVFS including the core/cluster,
35 certain system clocks configuration, thermal sensors and many
38 This protocol library provides interface for all the client drivers
39 making use of the features offered by the SCP.
41 config ARM_SCPI_POWER_DOMAIN
42 tristate "SCPI power domain driver"
43 depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
45 select PM_GENERIC_DOMAINS if PM
47 This enables support for the SCPI power domains which can be
48 enabled or disabled via the SCP firmware
51 tristate "BIOS Enhanced Disk Drive calls determine boot disk"
54 Say Y or M here if you want to enable BIOS Enhanced Disk Drive
55 Services real mode BIOS calls to determine which disk
56 BIOS tries boot from. This information is then exported via sysfs.
58 This option is experimental and is known to fail to boot on some
59 obscure configurations. Most disk controller BIOS vendors do
60 not yet implement this feature.
63 bool "Sets default behavior for EDD detection to off"
67 Say Y if you want EDD disabled by default, even though it is compiled into the
68 kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
69 using the kernel parameter 'edd={on|skipmbr|off}'.
71 config FIRMWARE_MEMMAP
72 bool "Add firmware-provided memory map to sysfs" if EXPERT
75 Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
76 That memory map is used for example by kexec to set up parameter area
77 for the next kernel, but can also be used for debugging purposes.
79 See also Documentation/ABI/testing/sysfs-firmware-memmap.
82 bool "Console device selection via EFI PCDP or HCDP table"
83 depends on ACPI && EFI && IA64
86 If your firmware supplies the PCDP table, and you want to
87 automatically use the primary console device it describes
88 as the Linux console, say Y here.
90 If your firmware supplies the HCDP table, and you want to
91 use the first serial port it describes as the Linux console,
92 say Y here. If your EFI ConOut path contains only a UART
93 device, it will become the console automatically. Otherwise,
94 you must specify the "console=hcdp" kernel boot argument.
96 Neither the PCDP nor the HCDP affects naming of serial devices,
97 so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
98 on how the driver discovers devices.
100 You must also enable the appropriate drivers (serial, VGA, etc.)
102 See DIG64_HCDPv20_042804.pdf available from
103 <http://www.dig64.org/specifications/>
106 tristate "BIOS update support for DELL systems via sysfs"
109 select FW_LOADER_USER_HELPER
111 Say m if you want to have the option of updating the BIOS for your
112 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
113 supporting application to communicate with the BIOS regarding the new
114 image for the image update to take effect.
115 See <file:Documentation/dell_rbu.txt> for more details on the driver.
118 tristate "Dell Systems Management Base Driver"
121 The Dell Systems Management Base Driver provides a sysfs interface
122 for systems management software to perform System Management
123 Interrupts (SMIs) and Host Control Actions (system power cycle or
124 power off after OS shutdown) on certain Dell systems.
126 See <file:Documentation/dcdbas.txt> for more details on the driver
127 and the Dell systems on which Dell systems management software makes
130 Say Y or M here to enable the driver for use by Dell systems
131 management software such as Dell OpenManage.
134 bool "Export DMI identification via sysfs to userspace"
138 Say Y here if you want to query SMBIOS/DMI system identification
139 information from userspace through /sys/class/dmi/id/ or if you want
140 DMI-based module auto-loading.
143 tristate "DMI table support in sysfs"
144 depends on SYSFS && DMI
147 Say Y or M here to enable the exporting of the raw DMI table
148 data via sysfs. This is useful for consuming the data without
149 requiring any access to /dev/mem at all. Tables are found
150 under /sys/firmware/dmi when this option is enabled and
153 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
156 config ISCSI_IBFT_FIND
157 bool "iSCSI Boot Firmware Table Attributes"
158 depends on X86 && ACPI
161 This option enables the kernel to find the region of memory
162 in which the ISCSI Boot Firmware Table (iBFT) resides. This
163 is necessary for iSCSI Boot Firmware Table Attributes module to work
167 tristate "iSCSI Boot Firmware Table Attributes module"
168 select ISCSI_BOOT_SYSFS
169 depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
172 This option enables support for detection and exposing of iSCSI
173 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
174 detect iSCSI boot parameters dynamically during system boot, say Y.
177 config RASPBERRYPI_FIRMWARE
178 tristate "Raspberry Pi Firmware Driver"
179 depends on BCM2835_MBOX
181 This option enables support for communicating with the firmware on the
185 tristate "QEMU fw_cfg device support in sysfs"
186 depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
187 depends on HAS_IOPORT_MAP
190 Say Y or M here to enable the exporting of the QEMU firmware
191 configuration (fw_cfg) file entries via sysfs. Entries are
192 found under /sys/firmware/fw_cfg when this option is enabled
195 config FW_CFG_SYSFS_CMDLINE
196 bool "QEMU fw_cfg device parameter parsing"
197 depends on FW_CFG_SYSFS
199 Allow the qemu_fw_cfg device to be initialized via the kernel
200 command line or using a module parameter.
201 WARNING: Using incorrect parameters (base address in particular)
202 may crash your system.
206 depends on ARM || ARM64
207 select RESET_CONTROLLER
211 depends on QCOM_SCM && ARM
215 depends on QCOM_SCM && ARM64
217 config TI_SCI_PROTOCOL
218 tristate "TI System Control Interface (TISCI) Message Protocol"
219 depends on TI_MESSAGE_MANAGER
221 TI System Control Interface (TISCI) Message Protocol is used to manage
222 compute systems such as ARM, DSP etc with the system controller in
223 complex System on Chip(SoC) such as those found on certain keystone
224 generation SoC from TI.
226 System controller provides various facilities including power
227 management function support.
229 This protocol library is used by client drivers to use the features
230 provided by the system controller.
232 config HAVE_ARM_SMCCC
235 source "drivers/firmware/broadcom/Kconfig"
236 source "drivers/firmware/google/Kconfig"
237 source "drivers/firmware/efi/Kconfig"
238 source "drivers/firmware/meson/Kconfig"
239 source "drivers/firmware/tegra/Kconfig"