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git01.mediatek.com / filogic / uboot / 17aea463d37946c5fb66a407ded24211e9a33e47 / . / lib / efi / Kconfig
blob: 81ed3e66b34d17c4b0cb53b5e9d371b08d1007f5 [file] [log] [blame]
Ilias Apalodimas17aea462024-08-30 14:45:27 +0300[diff] [blame^]1menu "U-Boot as UEFI application"
2 depends on X86
3
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]4config EFI
5 bool "Support running U-Boot from EFI"
6 depends on X86
Simon Glassd3edd422019-12-06 21:41:49 -0700[diff] [blame]7 imply X86_TSC_READ_BASE
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]8 help
9 U-Boot can be started from EFI on certain platforms. This allows
10 EFI to perform most of the system init and then jump to U-Boot for
11 final system boot. Another option is to run U-Boot as an EFI
12 application, with U-Boot using EFI's drivers instead of its own.
13
14choice
15 prompt "Select EFI mode to use"
16 depends on X86 && EFI
17
18config EFI_APP
19 bool "Support running as an EFI application"
Heinrich Schuchardt013aabb2022-05-02 06:27:00 +0200[diff] [blame]20 select CHARSET
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]21 help
22 Build U-Boot as an application which can be started from EFI. This
23 is useful for examining a platform in the early stages of porting
24 U-Boot to it. It allows only very basic functionality, such as a
25 command prompt and memory and I/O functions. Use 'reset' to return
26 to EFI.
27
Simon Glass63f581f2015-08-04 12:33:52 -0600[diff] [blame]28config EFI_STUB
29 bool "Support running as an EFI payload"
30
31endchoice
32
Simon Glass359a89d2021-11-03 21:09:06 -0600[diff] [blame]33choice
34 prompt "EFI app 32/64-bit selection"
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]35 depends on EFI_APP
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]36 help
Simon Glass359a89d2021-11-03 21:09:06 -0600[diff] [blame]37 EFI does not support mixing 32-bit and 64-bit modes. This is a
38 significant problem because it means that you must build a stub with
39 the correct type for EFI to load it correctly. If you are using
40 32-bit EFI, select 32-bit here, else select 64-bit. Failure to do
41 this may produce no error message - it just won't start!
42
43config EFI_APP_32BIT
44 bool "Produce an app for running with 32-bit EFI"
45
46config EFI_APP_64BIT
47 bool "Produce an app for running with 64-bit EFI"
48
49endchoice
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]50
Simon Glass63f581f2015-08-04 12:33:52 -0600[diff] [blame]51choice
Simon Glass359a89d2021-11-03 21:09:06 -0600[diff] [blame]52 prompt "EFI stub 32/64-bit selection"
Simon Glass63f581f2015-08-04 12:33:52 -0600[diff] [blame]53 depends on EFI_STUB
54 help
55 EFI does not support mixing 32-bit and 64-bit modes. This is a
56 significant problem because it means that you must build a stub with
57 the correct type for EFI to load it correctly. If you are using
58 32-bit EFI, select 32-bit here, else select 64-bit. Failure to do
59 this may produce no error message - it just won't start!
60
61config EFI_STUB_32BIT
62 bool "Produce a stub for running with 32-bit EFI"
63
64config EFI_STUB_64BIT
65 bool "Produce a stub for running with 64-bit EFI"
66
Simon Glass9539e692015-07-31 09:31:36 -0600[diff] [blame]67endchoice
Simon Glass359a89d2021-11-03 21:09:06 -0600[diff] [blame]68
69config EFI_RAM_SIZE
70 hex "Amount of EFI RAM for U-Boot"
71 depends on EFI_APP
72 default 0x10000000
73 help
74 Set the amount of EFI RAM which is claimed by U-Boot for its own
75 use. U-Boot allocates this from EFI on start-up (along with a few
76 other smaller amounts) and it can never be increased after that.
77 It is used as the RAM size in with U-Boot.
Ilias Apalodimas17aea462024-08-30 14:45:27 +0300[diff] [blame^]78
79endmenu