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 EDD 9 tristate "BIOS Enhanced Disk Drive calls determine boot disk (EXPERIMENTAL)" 10 depends on EXPERIMENTAL 11 depends on !IA64 12 help 13 Say Y or M here if you want to enable BIOS Enhanced Disk Drive 14 Services real mode BIOS calls to determine which disk 15 BIOS tries boot from. This information is then exported via sysfs. 16 17 This option is experimental and is known to fail to boot on some 18 obscure configurations. Most disk controller BIOS vendors do 19 not yet implement this feature. 20 21config EFI_VARS 22 tristate "EFI Variable Support via sysfs" 23 depends on EFI 24 default n 25 help 26 If you say Y here, you are able to get EFI (Extensible Firmware 27 Interface) variable information via sysfs. You may read, 28 write, create, and destroy EFI variables through this interface. 29 30 Note that using this driver in concert with efibootmgr requires 31 at least test release version 0.5.0-test3 or later, which is 32 available from Matt Domsch's website located at: 33 <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz> 34 35 Subsequent efibootmgr releases may be found at: 36 <http://linux.dell.com/efibootmgr> 37 38config EFI_PCDP 39 bool "Console device selection via EFI PCDP or HCDP table" 40 depends on ACPI && EFI && IA64 41 default y if IA64 42 help 43 If your firmware supplies the PCDP table, and you want to 44 automatically use the primary console device it describes 45 as the Linux console, say Y here. 46 47 If your firmware supplies the HCDP table, and you want to 48 use the first serial port it describes as the Linux console, 49 say Y here. If your EFI ConOut path contains only a UART 50 device, it will become the console automatically. Otherwise, 51 you must specify the "console=hcdp" kernel boot argument. 52 53 Neither the PCDP nor the HCDP affects naming of serial devices, 54 so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending 55 on how the driver discovers devices. 56 57 You must also enable the appropriate drivers (serial, VGA, etc.) 58 59 See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf> 60 61config DELL_RBU 62 tristate "BIOS update support for DELL systems via sysfs" 63 depends on X86 64 select FW_LOADER 65 help 66 Say m if you want to have the option of updating the BIOS for your 67 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP) 68 supporting application to comunicate with the BIOS regarding the new 69 image for the image update to take effect. 70 See <file:Documentation/dell_rbu.txt> for more details on the driver. 71 72config DCDBAS 73 tristate "Dell Systems Management Base Driver" 74 depends on X86 75 help 76 The Dell Systems Management Base Driver provides a sysfs interface 77 for systems management software to perform System Management 78 Interrupts (SMIs) and Host Control Actions (system power cycle or 79 power off after OS shutdown) on certain Dell systems. 80 81 See <file:Documentation/dcdbas.txt> for more details on the driver 82 and the Dell systems on which Dell systems management software makes 83 use of this driver. 84 85 Say Y or M here to enable the driver for use by Dell systems 86 management software such as Dell OpenManage. 87 88endmenu 89