drivers/firmware/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 menu "Firmware Drivers"
   7
   8 config ARM_PSCI_FW
   9         bool
  10
  11 config EDD
  12         tristate "BIOS Enhanced Disk Drive calls determine boot disk"
  13         depends on X86
  14         help
  15           Say Y or M here if you want to enable BIOS Enhanced Disk Drive
  16           Services real mode BIOS calls to determine which disk
  17           BIOS tries boot from.  This information is then exported via sysfs.
  18
  19           This option is experimental and is known to fail to boot on some
  20           obscure configurations. Most disk controller BIOS vendors do
  21           not yet implement this feature.
  22
  23 config EDD_OFF
  24         bool "Sets default behavior for EDD detection to off"
  25         depends on EDD
  26         default n
  27         help
  28           Say Y if you want EDD disabled by default, even though it is compiled into the
  29           kernel. Say N if you want EDD enabled by default. EDD can be dynamically set
  30           using the kernel parameter 'edd={on|skipmbr|off}'.
  31
  32 config FIRMWARE_MEMMAP
  33     bool "Add firmware-provided memory map to sysfs" if EXPERT
  34     default X86
  35     help
  36       Add the firmware-provided (unmodified) memory map to /sys/firmware/memmap.
  37       That memory map is used for example by kexec to set up parameter area
  38       for the next kernel, but can also be used for debugging purposes.
  39
  40       See also Documentation/ABI/testing/sysfs-firmware-memmap.
  41
  42 config EFI_PCDP
  43         bool "Console device selection via EFI PCDP or HCDP table"
  44         depends on ACPI && EFI && IA64
  45         default y if IA64
  46         help
  47           If your firmware supplies the PCDP table, and you want to
  48           automatically use the primary console device it describes
  49           as the Linux console, say Y here.
  50
  51           If your firmware supplies the HCDP table, and you want to
  52           use the first serial port it describes as the Linux console,
  53           say Y here.  If your EFI ConOut path contains only a UART
  54           device, it will become the console automatically.  Otherwise,
  55           you must specify the "console=hcdp" kernel boot argument.
  56
  57           Neither the PCDP nor the HCDP affects naming of serial devices,
  58           so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
  59           on how the driver discovers devices.
  60
  61           You must also enable the appropriate drivers (serial, VGA, etc.)
  62
  63           See DIG64_HCDPv20_042804.pdf available from
  64           <http://www.dig64.org/specifications/>
  65
  66 config DELL_RBU
  67         tristate "BIOS update support for DELL systems via sysfs"
  68         depends on X86
  69         select FW_LOADER
  70         select FW_LOADER_USER_HELPER
  71         help
  72          Say m if you want to have the option of updating the BIOS for your
  73          DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
  74          supporting application to communicate with the BIOS regarding the new
  75          image for the image update to take effect.
  76          See <file:Documentation/dell_rbu.txt> for more details on the driver.
  77
  78 config DCDBAS
  79         tristate "Dell Systems Management Base Driver"
  80         depends on X86
  81         help
  82           The Dell Systems Management Base Driver provides a sysfs interface
  83           for systems management software to perform System Management
  84           Interrupts (SMIs) and Host Control Actions (system power cycle or
  85           power off after OS shutdown) on certain Dell systems.
  86
  87           See <file:Documentation/dcdbas.txt> for more details on the driver
  88           and the Dell systems on which Dell systems management software makes
  89           use of this driver.
  90
  91           Say Y or M here to enable the driver for use by Dell systems
  92           management software such as Dell OpenManage.
  93
  94 config DMIID
  95     bool "Export DMI identification via sysfs to userspace"
  96     depends on DMI
  97     default y
  98         help
  99           Say Y here if you want to query SMBIOS/DMI system identification
 100           information from userspace through /sys/class/dmi/id/ or if you want
 101           DMI-based module auto-loading.
 102
 103 config DMI_SYSFS
 104         tristate "DMI table support in sysfs"
 105         depends on SYSFS && DMI
 106         default n
 107         help
 108           Say Y or M here to enable the exporting of the raw DMI table
 109           data via sysfs.  This is useful for consuming the data without
 110           requiring any access to /dev/mem at all.  Tables are found
 111           under /sys/firmware/dmi when this option is enabled and
 112           loaded.
 113
 114 config DMI_SCAN_MACHINE_NON_EFI_FALLBACK
 115         bool
 116
 117 config ISCSI_IBFT_FIND
 118         bool "iSCSI Boot Firmware Table Attributes"
 119         depends on X86 && ACPI
 120         default n
 121         help
 122           This option enables the kernel to find the region of memory
 123           in which the ISCSI Boot Firmware Table (iBFT) resides. This
 124           is necessary for iSCSI Boot Firmware Table Attributes module to work
 125           properly.
 126
 127 config ISCSI_IBFT
 128         tristate "iSCSI Boot Firmware Table Attributes module"
 129         select ISCSI_BOOT_SYSFS
 130         depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
 131         default n
 132         help
 133           This option enables support for detection and exposing of iSCSI
 134           Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
 135           detect iSCSI boot parameters dynamically during system boot, say Y.
 136           Otherwise, say N.
 137
 138 config QCOM_SCM
 139         bool
 140         depends on ARM || ARM64
 141
 142 source "drivers/firmware/broadcom/Kconfig"
 143 source "drivers/firmware/google/Kconfig"
 144 source "drivers/firmware/efi/Kconfig"
 145
 146 endmenu