aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/firmware/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/firmware/Kconfig')
-rw-r--r--drivers/firmware/Kconfig61
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
new file mode 100644
index 000000000000..5b29c3b2a331
--- /dev/null
+++ b/drivers/firmware/Kconfig
@@ -0,0 +1,61 @@
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
61endmenu