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"
10	depends on !IA64
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
20config EFI_VARS
21	tristate "EFI Variable Support via sysfs"
22	depends on EFI
23	default n
24	help
25	  If you say Y here, you are able to get EFI (Extensible Firmware
26	  Interface) variable information via sysfs.  You may read,
27	  write, create, and destroy EFI variables through this interface.
28
29	  Note that using this driver in concert with efibootmgr requires
30	  at least test release version 0.5.0-test3 or later, which is
31	  available from Matt Domsch's website located at:
32	  <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
33
34	  Subsequent efibootmgr releases may be found at:
35	  <http://linux.dell.com/efibootmgr>
36
37config EFI_PCDP
38	bool "Console device selection via EFI PCDP or HCDP table"
39	depends on ACPI && EFI && IA64
40	default y if IA64
41	help
42	  If your firmware supplies the PCDP table, and you want to
43	  automatically use the primary console device it describes
44	  as the Linux console, say Y here.
45
46	  If your firmware supplies the HCDP table, and you want to
47	  use the first serial port it describes as the Linux console,
48	  say Y here.  If your EFI ConOut path contains only a UART
49	  device, it will become the console automatically.  Otherwise,
50	  you must specify the "console=hcdp" kernel boot argument.
51
52	  Neither the PCDP nor the HCDP affects naming of serial devices,
53	  so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
54	  on how the driver discovers devices.
55
56	  You must also enable the appropriate drivers (serial, VGA, etc.)
57
58	  See <http://www.dig64.org/specifications/DIG64_HCDPv20_042804.pdf>
59
60config DELL_RBU
61	tristate "BIOS update support for DELL systems via sysfs"
62	depends on X86
63	select FW_LOADER
64	help
65	 Say m if you want to have the option of updating the BIOS for your
66	 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
67	 supporting application to communicate with the BIOS regarding the new
68	 image for the image update to take effect.
69	 See <file:Documentation/dell_rbu.txt> for more details on the driver.
70
71config DCDBAS
72	tristate "Dell Systems Management Base Driver"
73	depends on X86
74	help
75	  The Dell Systems Management Base Driver provides a sysfs interface
76	  for systems management software to perform System Management
77	  Interrupts (SMIs) and Host Control Actions (system power cycle or
78	  power off after OS shutdown) on certain Dell systems.
79
80	  See <file:Documentation/dcdbas.txt> for more details on the driver
81	  and the Dell systems on which Dell systems management software makes
82	  use of this driver.
83
84	  Say Y or M here to enable the driver for use by Dell systems
85	  management software such as Dell OpenManage.
86
87endmenu
88