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 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
20config 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
29config 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
39config EFI_VARS
40	tristate "EFI Variable Support via sysfs"
41	depends on EFI
42	default n
43	help
44	  If you say Y here, you are able to get EFI (Extensible Firmware
45	  Interface) variable information via sysfs.  You may read,
46	  write, create, and destroy EFI variables through this interface.
47
48	  Note that using this driver in concert with efibootmgr requires
49	  at least test release version 0.5.0-test3 or later, which is
50	  available from Matt Domsch's website located at:
51	  <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
52
53	  Subsequent efibootmgr releases may be found at:
54	  <http://linux.dell.com/efibootmgr>
55
56config EFI_PCDP
57	bool "Console device selection via EFI PCDP or HCDP table"
58	depends on ACPI && EFI && IA64
59	default y if IA64
60	help
61	  If your firmware supplies the PCDP table, and you want to
62	  automatically use the primary console device it describes
63	  as the Linux console, say Y here.
64
65	  If your firmware supplies the HCDP table, and you want to
66	  use the first serial port it describes as the Linux console,
67	  say Y here.  If your EFI ConOut path contains only a UART
68	  device, it will become the console automatically.  Otherwise,
69	  you must specify the "console=hcdp" kernel boot argument.
70
71	  Neither the PCDP nor the HCDP affects naming of serial devices,
72	  so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
73	  on how the driver discovers devices.
74
75	  You must also enable the appropriate drivers (serial, VGA, etc.)
76
77	  See DIG64_HCDPv20_042804.pdf available from
78	  <http://www.dig64.org/specifications/>
79
80config DELL_RBU
81	tristate "BIOS update support for DELL systems via sysfs"
82	depends on X86
83	select FW_LOADER
84	help
85	 Say m if you want to have the option of updating the BIOS for your
86	 DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
87	 supporting application to communicate with the BIOS regarding the new
88	 image for the image update to take effect.
89	 See <file:Documentation/dell_rbu.txt> for more details on the driver.
90
91config DCDBAS
92	tristate "Dell Systems Management Base Driver"
93	depends on X86
94	help
95	  The Dell Systems Management Base Driver provides a sysfs interface
96	  for systems management software to perform System Management
97	  Interrupts (SMIs) and Host Control Actions (system power cycle or
98	  power off after OS shutdown) on certain Dell systems.
99
100	  See <file:Documentation/dcdbas.txt> for more details on the driver
101	  and the Dell systems on which Dell systems management software makes
102	  use of this driver.
103
104	  Say Y or M here to enable the driver for use by Dell systems
105	  management software such as Dell OpenManage.
106
107config DMIID
108    bool "Export DMI identification via sysfs to userspace"
109    depends on DMI
110    default y
111	help
112	  Say Y here if you want to query SMBIOS/DMI system identification
113	  information from userspace through /sys/class/dmi/id/ or if you want
114	  DMI-based module auto-loading.
115
116config DMI_SYSFS
117	tristate "DMI table support in sysfs"
118	depends on SYSFS && DMI
119	default n
120	help
121	  Say Y or M here to enable the exporting of the raw DMI table
122	  data via sysfs.  This is useful for consuming the data without
123	  requiring any access to /dev/mem at all.  Tables are found
124	  under /sys/firmware/dmi when this option is enabled and
125	  loaded.
126
127config ISCSI_IBFT_FIND
128	bool "iSCSI Boot Firmware Table Attributes"
129	depends on X86
130	default n
131	help
132	  This option enables the kernel to find the region of memory
133	  in which the ISCSI Boot Firmware Table (iBFT) resides. This
134	  is necessary for iSCSI Boot Firmware Table Attributes module to work
135	  properly.
136
137config ISCSI_IBFT
138	tristate "iSCSI Boot Firmware Table Attributes module"
139	select ISCSI_BOOT_SYSFS
140	depends on ISCSI_IBFT_FIND && SCSI && SCSI_LOWLEVEL
141	default	n
142	help
143	  This option enables support for detection and exposing of iSCSI
144	  Boot Firmware Table (iBFT) via sysfs to userspace. If you wish to
145	  detect iSCSI boot parameters dynamically during system boot, say Y.
146	  Otherwise, say N.
147
148config SIGMA
149	tristate "SigmaStudio firmware loader"
150	depends on I2C
151	select CRC32
152	default n
153	help
154	  Enable helper functions for working with Analog Devices SigmaDSP
155	  parts and binary firmwares produced by Analog Devices SigmaStudio.
156
157	  If unsure, say N here.  Drivers that need these helpers will select
158	  this option automatically.
159
160endmenu
161