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  1 #
  2 # For a description of the syntax of this configuration file,
  3 # see Documentation/kbuild/kconfig-language.txt.
  4 #
  6 menu "Firmware Drivers"
  8 config ARM_PSCI_FW
  9         bool
 12         tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
 13         depends on ARM_MHU
 14         help
 15           System Control and Power Interface (SCPI) Message Protocol is
 16           defined for the purpose of communication between the Application
 17           Cores(AP) and the System Control Processor(SCP). The MHU peripheral
 18           provides a mechanism for inter-processor communication between SCP
 19           and AP.
 21           SCP controls most of the power managament on the Application
 22           Processors. It offers control and management of: the core/cluster
 23           power states, various power domain DVFS including the core/cluster,
 24           certain system clocks configuration, thermal sensors and many
 25           others.
 27           This protocol library provides interface for all the client drivers
 28           making use of the features offered by the SCP.
 30 config EDD
 31         tristate "BIOS Enhanced Disk Drive calls determine boot disk"
 32         depends on X86
 33         help
 34           Say Y or M here if you want to enable BIOS Enhanced Disk Drive
 35           Services real mode BIOS calls to determine which disk
 36           BIOS tries boot from.  This information is then exported via sysfs.
 38           This option is experimental and is known to fail to boot on some
 39           obscure configurations. Most disk controller BIOS vendors do
 40           not yet implement this feature.
 42 config EDD_OFF
 43         bool "Sets default behavior for EDD detection to off"
 44         depends on EDD
 45         default n
 46         help
 47           Say Y if you want EDD disabled by default, even though it is compiled into the
 48           kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
 49           using the kernel parameter 'edd={on|skipmbr|off}'.
 52     bool "Add firmware-provided memory map to sysfs" if EXPERT
 53     default X86
 54     help
 55       Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
 56       That memory map is used for example by kexec to set up parameter area
 57       for the next kernel, but can also be used for debugging purposes.
 59       See also Documentation/ABI/testing/sysfs-firmware-memmap.
 61 config EFI_PCDP
 62         bool "Console device selection via EFI PCDP or HCDP table"
 63         depends on ACPI && EFI && IA64
 64         default y if IA64
 65         help
 66           If your firmware supplies the PCDP table, and you want to
 67           automatically use the primary console device it describes
 68           as the Linux console, say Y here.
 70           If your firmware supplies the HCDP table, and you want to
 71           use the first serial port it describes as the Linux console,
 72           say Y here.  If your EFI ConOut path contains only a UART
 73           device, it will become the console automatically.  Otherwise,
 74           you must specify the "console=hcdp" kernel boot argument.
 76           Neither the PCDP nor the HCDP affects naming of serial devices,
 77           so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
 78           on how the driver discovers devices.
 80           You must also enable the appropriate drivers (serial, VGA, etc.)
 82           See DIG64_HCDPv20_042804.pdf available from
 83           <> 
 85 config DELL_RBU
 86         tristate "BIOS update support for DELL systems via sysfs"
 87         depends on X86
 88         select FW_LOADER
 89         select FW_LOADER_USER_HELPER
 90         help
 91          Say m if you want to have the option of updating the BIOS for your
 92          DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
 93          supporting application to communicate with the BIOS regarding the new
 94          image for the image update to take effect.
 95          See <file:Documentation/dell_rbu.txt> for more details on the driver.
 97 config DCDBAS
 98         tristate "Dell Systems Management Base Driver"
 99         depends on X86
100         help
101           The Dell Systems Management Base Driver provides a sysfs interface
102           for systems management software to perform System Management
103           Interrupts (SMIs) and Host Control Actions (system power cycle or
104           power off after OS shutdown) on certain Dell systems.
106           See <file:Documentation/dcdbas.txt> for more details on the driver
107           and the Dell systems on which Dell systems management software makes
108           use of this driver.
110           Say Y or M here to enable the driver for use by Dell systems
111           management software such as Dell OpenManage.
113 config DMIID
114     bool "Export DMI identification via sysfs to userspace"
115     depends on DMI
116     default y
117         help
118           Say Y here if you want to query SMBIOS/DMI system identification
119           information from userspace through /sys/class/dmi/id/ or if you want
120           DMI-based module auto-loading.
122 config DMI_SYSFS
123         tristate "DMI table support in sysfs"
124         depends on SYSFS && DMI
125         default n
126         help
127           Say Y or M here to enable the exporting of the raw DMI table
128           data via sysfs.  This is useful for consuming the data without
129           requiring any access to /dev/mem at all.  Tables are found
130           under /sys/firmware/dmi when this option is enabled and
131           loaded.
134         bool
136 config ISCSI_IBFT_FIND
137         bool "iSCSI Boot Firmware Table Attributes"
138         depends on X86 && ACPI
139         default n
140         help
141           This option enables the kernel to find the region of memory
142           in which the ISCSI Boot Firmware Table (iBFT) resides. This
143           is necessary for iSCSI Boot Firmware Table Attributes module to work
144           properly.
146 config ISCSI_IBFT
147         tristate "iSCSI Boot Firmware Table Attributes module"
148         select ISCSI_BOOT_SYSFS
149         depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
150         default n
151         help
152           This option enables support for detection and exposing of iSCSI
153           Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
154           detect iSCSI boot parameters dynamically during system boot, say Y.
155           Otherwise, say N.
158         tristate "Raspberry Pi Firmware Driver"
159         depends on BCM2835_MBOX
160         help
161           This option enables support for communicating with the firmware on the
162           Raspberry Pi.
164 config FW_CFG_SYSFS
165         tristate "QEMU fw_cfg device support in sysfs"
166         depends on SYSFS && (ARM || ARM64 || PPC_PMAC || SPARC || X86)
167         depends on HAS_IOPORT_MAP
168         default n
169         help
170           Say Y or M here to enable the exporting of the QEMU firmware
171           configuration (fw_cfg) file entries via sysfs. Entries are
172           found under /sys/firmware/fw_cfg when this option is enabled
173           and loaded.
176         bool "QEMU fw_cfg device parameter parsing"
177         depends on FW_CFG_SYSFS
178         help
179           Allow the qemu_fw_cfg device to be initialized via the kernel
180           command line or using a module parameter.
181           WARNING: Using incorrect parameters (base address in particular)
182           may crash your system.
184 config QCOM_SCM
185         bool
186         depends on ARM || ARM64
188 config QCOM_SCM_32
189         def_bool y
190         depends on QCOM_SCM && ARM
192 config QCOM_SCM_64
193         def_bool y
194         depends on QCOM_SCM && ARM64
196 config HAVE_ARM_SMCCC
197         bool
199 source "drivers/firmware/broadcom/Kconfig"
200 source "drivers/firmware/google/Kconfig"
201 source "drivers/firmware/efi/Kconfig"
203 endmenu

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