drivers/firmware/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see Documentation/kbuild/kconfig-language.rst.
   5 #
   6
   7 menu "Firmware Drivers"
   8
   9 config ARM_SCMI_PROTOCOL
  10         bool "ARM System Control and Management Interface (SCMI) Message Protocol"
  11         depends on ARM || ARM64 || COMPILE_TEST
  12         depends on MAILBOX
  13         help
  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.
  26
  27           This protocol library provides interface for all the client drivers
  28           making use of the features offered by the SCMI.
  29
  30 config ARM_SCMI_POWER_DOMAIN
  31         tristate "SCMI power domain driver"
  32         depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF)
  33         default y
  34         select PM_GENERIC_DOMAINS if PM
  35         help
  36           This enables support for the SCMI power domains which can be
  37           enabled or disabled via the SCP firmware
  38
  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.
  42
  43 config ARM_SCPI_PROTOCOL
  44         tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
  45         depends on ARM || ARM64 || COMPILE_TEST
  46         depends on MAILBOX
  47         help
  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
  52           and AP.
  53
  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
  58           others.
  59
  60           This protocol library provides interface for all the client drivers
  61           making use of the features offered by the SCP.
  62
  63 config ARM_SCPI_POWER_DOMAIN
  64         tristate "SCPI power domain driver"
  65         depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF)
  66         default y
  67         select PM_GENERIC_DOMAINS if PM
  68         help
  69           This enables support for the SCPI power domains which can be
  70           enabled or disabled via the SCP firmware
  71
  72 config ARM_SDE_INTERFACE
  73         bool "ARM Software Delegated Exception Interface (SDEI)"
  74         depends on ARM64
  75         help
  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.
  79
  80 config EDD
  81         tristate "BIOS Enhanced Disk Drive calls determine boot disk"
  82         depends on X86
  83         help
  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.
  87
  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.
  91
  92 config EDD_OFF
  93         bool "Sets default behavior for EDD detection to off"
  94         depends on EDD
  95         default n
  96         help
  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}'.
 100
 101 config FIRMWARE_MEMMAP
 102     bool "Add firmware-provided memory map to sysfs" if EXPERT
 103     default X86
 104     help
 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.
 108
 109       See also Documentation/ABI/testing/sysfs-firmware-memmap.
 110
 111 config EFI_PCDP
 112         bool "Console device selection via EFI PCDP or HCDP table"
 113         depends on ACPI && EFI && IA64
 114         default y if IA64
 115         help
 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.
 119
 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.
 125
 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.
 129
 130           You must also enable the appropriate drivers (serial, VGA, etc.)
 131
 132           See DIG64_HCDPv20_042804.pdf available from
 133           <http://www.dig64.org/specifications/>
 134
 135 config DMIID
 136     bool "Export DMI identification via sysfs to userspace"
 137     depends on DMI
 138     default y
 139         help
 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.
 143
 144 config DMI_SYSFS
 145         tristate "DMI table support in sysfs"
 146         depends on SYSFS && DMI
 147         default n
 148         help
 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
 153           loaded.
 154
 155 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
 156         bool
 157
 158 config ISCSI_IBFT_FIND
 159         bool "iSCSI Boot Firmware Table Attributes"
 160         depends on X86 && ISCSI_IBFT
 161         default n
 162         help
 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
 166           properly.
 167
 168 config ISCSI_IBFT
 169         tristate "iSCSI Boot Firmware Table Attributes module"
 170         select ISCSI_BOOT_SYSFS
 171         select ISCSI_IBFT_FIND if X86
 172         depends on ACPI && SCSI && SCSI_LOWLEVEL
 173         default n
 174         help
 175           This option enables support for detection and exposing of iSCSI
 176           Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
 177           detect iSCSI boot parameters dynamically during system boot, say Y.
 178           Otherwise, say N.
 179
 180 config RASPBERRYPI_FIRMWARE
 181         tristate "Raspberry Pi Firmware Driver"
 182         depends on BCM2835_MBOX
 183         help
 184           This option enables support for communicating with the firmware on the
 185           Raspberry Pi.
 186
 187 config FW_CFG_SYSFS
 188         tristate "QEMU fw_cfg device support in sysfs"
 189         depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
 190         depends on HAS_IOPORT_MAP
 191         default n
 192         help
 193           Say Y or M here to enable the exporting of the QEMU firmware
 194           configuration (fw_cfg) file entries via sysfs. Entries are
 195           found under /sys/firmware/fw_cfg when this option is enabled
 196           and loaded.
 197
 198 config FW_CFG_SYSFS_CMDLINE
 199         bool "QEMU fw_cfg device parameter parsing"
 200         depends on FW_CFG_SYSFS
 201         help
 202           Allow the qemu_fw_cfg device to be initialized via the kernel
 203           command line or using a module parameter.
 204           WARNING: Using incorrect parameters (base address in particular)
 205           may crash your system.
 206
 207 config INTEL_STRATIX10_SERVICE
 208         tristate "Intel Stratix10 Service Layer"
 209         depends on ARCH_STRATIX10 && HAVE_ARM_SMCCC
 210         default n
 211         help
 212           Intel Stratix10 service layer runs at privileged exception level,
 213           interfaces with the service providers (FPGA manager is one of them)
 214           and manages secure monitor call to communicate with secure monitor
 215           software at secure monitor exception level.
 216
 217           Say Y here if you want Stratix10 service layer support.
 218
 219 config QCOM_SCM
 220         bool
 221         depends on ARM || ARM64
 222         select RESET_CONTROLLER
 223
 224 config QCOM_SCM_32
 225         def_bool y
 226         depends on QCOM_SCM && ARM
 227
 228 config QCOM_SCM_64
 229         def_bool y
 230         depends on QCOM_SCM && ARM64
 231
 232 config QCOM_SCM_DOWNLOAD_MODE_DEFAULT
 233         bool "Qualcomm download mode enabled by default"
 234         depends on QCOM_SCM
 235         help
 236           A device with "download mode" enabled will upon an unexpected
 237           warm-restart enter a special debug mode that allows the user to
 238           "download" memory content over USB for offline postmortem analysis.
 239           The feature can be enabled/disabled on the kernel command line.
 240
 241           Say Y here to enable "download mode" by default.
 242
 243 config TI_SCI_PROTOCOL
 244         tristate "TI System Control Interface (TISCI) Message Protocol"
 245         depends on TI_MESSAGE_MANAGER
 246         help
 247           TI System Control Interface (TISCI) Message Protocol is used to manage
 248           compute systems such as ARM, DSP etc with the system controller in
 249           complex System on Chip(SoC) such as those found on certain keystone
 250           generation SoC from TI.
 251
 252           System controller provides various facilities including power
 253           management function support.
 254
 255           This protocol library is used by client drivers to use the features
 256           provided by the system controller.
 257
 258 config TRUSTED_FOUNDATIONS
 259         bool "Trusted Foundations secure monitor support"
 260         depends on ARM && CPU_V7
 261         help
 262           Some devices (including most early Tegra-based consumer devices on
 263           the market) are booted with the Trusted Foundations secure monitor
 264           active, requiring some core operations to be performed by the secure
 265           monitor instead of the kernel.
 266
 267           This option allows the kernel to invoke the secure monitor whenever
 268           required on devices using Trusted Foundations. See the functions and
 269           comments in linux/firmware/trusted_foundations.h or the device tree
 270           bindings for "tlm,trusted-foundations" for details on how to use it.
 271
 272           Choose N if you don't know what this is about.
 273
 274 config HAVE_ARM_SMCCC
 275         bool
 276
 277 source "drivers/firmware/psci/Kconfig"
 278 source "drivers/firmware/broadcom/Kconfig"
 279 source "drivers/firmware/google/Kconfig"
 280 source "drivers/firmware/efi/Kconfig"
 281 source "drivers/firmware/imx/Kconfig"
 282 source "drivers/firmware/meson/Kconfig"
 283 source "drivers/firmware/tegra/Kconfig"
 284 source "drivers/firmware/xilinx/Kconfig"
 285
 286 endmenu