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