1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6menu "Firmware Drivers" 7 8config ARM_PSCI_FW 9 bool 10 11config ARM_PSCI_CHECKER 12 bool "ARM PSCI checker" 13 depends on ARM_PSCI_FW && HOTPLUG_CPU && CPU_IDLE && !TORTURE_TEST 14 help 15 Run the PSCI checker during startup. This checks that hotplug and 16 suspend operations work correctly when using PSCI. 17 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. 21 22config ARM_SCMI_PROTOCOL 23 bool "ARM System Control and Management Interface (SCMI) Message Protocol" 24 depends on ARM || ARM64 || COMPILE_TEST 25 depends on MAILBOX 26 help 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. 39 40 This protocol library provides interface for all the client drivers 41 making use of the features offered by the SCMI. 42 43config ARM_SCMI_POWER_DOMAIN 44 tristate "SCMI power domain driver" 45 depends on ARM_SCMI_PROTOCOL || (COMPILE_TEST && OF) 46 default y 47 select PM_GENERIC_DOMAINS if PM 48 help 49 This enables support for the SCMI power domains which can be 50 enabled or disabled via the SCP firmware 51 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. 55 56config ARM_SCPI_PROTOCOL 57 tristate "ARM System Control and Power Interface (SCPI) Message Protocol" 58 depends on ARM || ARM64 || COMPILE_TEST 59 depends on MAILBOX 60 help 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 65 and AP. 66 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 71 others. 72 73 This protocol library provides interface for all the client drivers 74 making use of the features offered by the SCP. 75 76config ARM_SCPI_POWER_DOMAIN 77 tristate "SCPI power domain driver" 78 depends on ARM_SCPI_PROTOCOL || (COMPILE_TEST && OF) 79 default y 80 select PM_GENERIC_DOMAINS if PM 81 help 82 This enables support for the SCPI power domains which can be 83 enabled or disabled via the SCP firmware 84 85config ARM_SDE_INTERFACE 86 bool "ARM Software Delegated Exception Interface (SDEI)" 87 depends on ARM64 88 help 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. 92 93config EDD 94 tristate "BIOS Enhanced Disk Drive calls determine boot disk" 95 depends on X86 96 help 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. 100 101 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. 104 105config EDD_OFF 106 bool "Sets default behavior for EDD detection to off" 107 depends on EDD 108 default n 109 help 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}'. 113 114config FIRMWARE_MEMMAP 115 bool "Add firmware-provided memory map to sysfs" if EXPERT 116 default X86 117 help 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. 121 122 See also Documentation/ABI/testing/sysfs-firmware-memmap. 123 124config EFI_PCDP 125 bool "Console device selection via EFI PCDP or HCDP table" 126 depends on ACPI && EFI && IA64 127 default y if IA64 128 help 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. 132 133 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. 138 139 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. 142 143 You must also enable the appropriate drivers (serial, VGA, etc.) 144 145 See DIG64_HCDPv20_042804.pdf available from 146 <http://www.dig64.org/specifications/> 147 148config DELL_RBU 149 tristate "BIOS update support for DELL systems via sysfs" 150 depends on X86 151 select FW_LOADER 152 select FW_LOADER_USER_HELPER 153 help 154 Say m if you want to have the option of updating the BIOS for your 155 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP) 156 supporting application to communicate with the BIOS regarding the new 157 image for the image update to take effect. 158 See <file:Documentation/dell_rbu.txt> for more details on the driver. 159 160config DCDBAS 161 tristate "Dell Systems Management Base Driver" 162 depends on X86 163 help 164 The Dell Systems Management Base Driver provides a sysfs interface 165 for systems management software to perform System Management 166 Interrupts (SMIs) and Host Control Actions (system power cycle or 167 power off after OS shutdown) on certain Dell systems. 168 169 See <file:Documentation/dcdbas.txt> for more details on the driver 170 and the Dell systems on which Dell systems management software makes 171 use of this driver. 172 173 Say Y or M here to enable the driver for use by Dell systems 174 management software such as Dell OpenManage. 175 176config DMIID 177 bool "Export DMI identification via sysfs to userspace" 178 depends on DMI 179 default y 180 help 181 Say Y here if you want to query SMBIOS/DMI system identification 182 information from userspace through /sys/class/dmi/id/ or if you want 183 DMI-based module auto-loading. 184 185config DMI_SYSFS 186 tristate "DMI table support in sysfs" 187 depends on SYSFS && DMI 188 default n 189 help 190 Say Y or M here to enable the exporting of the raw DMI table 191 data via sysfs. This is useful for consuming the data without 192 requiring any access to /dev/mem at all. Tables are found 193 under /sys/firmware/dmi when this option is enabled and 194 loaded. 195 196config DMI_SCAN_MACHINE_NON_EFI_FALLBACK 197 bool 198 199config ISCSI_IBFT_FIND 200 bool "iSCSI Boot Firmware Table Attributes" 201 depends on X86 && ACPI 202 default n 203 help 204 This option enables the kernel to find the region of memory 205 in which the ISCSI Boot Firmware Table (iBFT) resides. This 206 is necessary for iSCSI Boot Firmware Table Attributes module to work 207 properly. 208 209config ISCSI_IBFT 210 tristate "iSCSI Boot Firmware Table Attributes module" 211 select ISCSI_BOOT_SYSFS 212 depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL 213 default n 214 help 215 This option enables support for detection and exposing of iSCSI 216 Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to 217 detect iSCSI boot parameters dynamically during system boot, say Y. 218 Otherwise, say N. 219 220config RASPBERRYPI_FIRMWARE 221 tristate "Raspberry Pi Firmware Driver" 222 depends on BCM2835_MBOX 223 help 224 This option enables support for communicating with the firmware on the 225 Raspberry Pi. 226 227config FW_CFG_SYSFS 228 tristate "QEMU fw_cfg device support in sysfs" 229 depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86) 230 depends on HAS_IOPORT_MAP 231 default n 232 help 233 Say Y or M here to enable the exporting of the QEMU firmware 234 configuration (fw_cfg) file entries via sysfs. Entries are 235 found under /sys/firmware/fw_cfg when this option is enabled 236 and loaded. 237 238config FW_CFG_SYSFS_CMDLINE 239 bool "QEMU fw_cfg device parameter parsing" 240 depends on FW_CFG_SYSFS 241 help 242 Allow the qemu_fw_cfg device to be initialized via the kernel 243 command line or using a module parameter. 244 WARNING: Using incorrect parameters (base address in particular) 245 may crash your system. 246 247config QCOM_SCM 248 bool 249 depends on ARM || ARM64 250 select RESET_CONTROLLER 251 252config QCOM_SCM_32 253 def_bool y 254 depends on QCOM_SCM && ARM 255 256config QCOM_SCM_64 257 def_bool y 258 depends on QCOM_SCM && ARM64 259 260config QCOM_SCM_DOWNLOAD_MODE_DEFAULT 261 bool "Qualcomm download mode enabled by default" 262 depends on QCOM_SCM 263 help 264 A device with "download mode" enabled will upon an unexpected 265 warm-restart enter a special debug mode that allows the user to 266 "download" memory content over USB for offline postmortem analysis. 267 The feature can be enabled/disabled on the kernel command line. 268 269 Say Y here to enable "download mode" by default. 270 271config TI_SCI_PROTOCOL 272 tristate "TI System Control Interface (TISCI) Message Protocol" 273 depends on TI_MESSAGE_MANAGER 274 help 275 TI System Control Interface (TISCI) Message Protocol is used to manage 276 compute systems such as ARM, DSP etc with the system controller in 277 complex System on Chip(SoC) such as those found on certain keystone 278 generation SoC from TI. 279 280 System controller provides various facilities including power 281 management function support. 282 283 This protocol library is used by client drivers to use the features 284 provided by the system controller. 285 286config HAVE_ARM_SMCCC 287 bool 288 289source "drivers/firmware/broadcom/Kconfig" 290source "drivers/firmware/google/Kconfig" 291source "drivers/firmware/efi/Kconfig" 292source "drivers/firmware/meson/Kconfig" 293source "drivers/firmware/tegra/Kconfig" 294 295endmenu 296