projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 867a6ac8 SG |
1 | config EFI |
| 2 | bool "Support running U-Boot from EFI" | |
| 3 | depends on X86 | |
| 77dd7c68 | 4 | imply X86_TSC_READ_BASE |
| 867a6ac8 SG |
5 | help |
| 6 | U-Boot can be started from EFI on certain platforms. This allows | |
| 7 | EFI to perform most of the system init and then jump to U-Boot for | |
| 8 | final system boot. Another option is to run U-Boot as an EFI | |
| 9 | application, with U-Boot using EFI's drivers instead of its own. | |
| 10 | ||
| 11 | choice | |
| 12 | prompt "Select EFI mode to use" | |
| 13 | depends on X86 && EFI | |
| 14 | ||
| 15 | config EFI_APP | |
| 16 | bool "Support running as an EFI application" | |
| d30924f1 | 17 | select CHARSET |
| 867a6ac8 SG |
18 | help |
| 19 | Build U-Boot as an application which can be started from EFI. This | |
| 20 | is useful for examining a platform in the early stages of porting | |
| 21 | U-Boot to it. It allows only very basic functionality, such as a | |
| 22 | command prompt and memory and I/O functions. Use 'reset' to return | |
| 23 | to EFI. | |
| 24 | ||
| 476476e7 SG |
25 | config EFI_STUB |
| 26 | bool "Support running as an EFI payload" | |
| 27 | ||
| 28 | endchoice | |
| 29 | ||
| f4d227c9 SG |
30 | choice |
| 31 | prompt "EFI app 32/64-bit selection" | |
| 867a6ac8 | 32 | depends on EFI_APP |
| 867a6ac8 | 33 | help |
| f4d227c9 SG |
34 | EFI does not support mixing 32-bit and 64-bit modes. This is a |
| 35 | significant problem because it means that you must build a stub with | |
| 36 | the correct type for EFI to load it correctly. If you are using | |
| 37 | 32-bit EFI, select 32-bit here, else select 64-bit. Failure to do | |
| 38 | this may produce no error message - it just won't start! | |
| 39 | ||
| 40 | config EFI_APP_32BIT | |
| 41 | bool "Produce an app for running with 32-bit EFI" | |
| 42 | ||
| 43 | config EFI_APP_64BIT | |
| 44 | bool "Produce an app for running with 64-bit EFI" | |
| 45 | ||
| 46 | endchoice | |
| 867a6ac8 | 47 | |
| 476476e7 | 48 | choice |
| f4d227c9 | 49 | prompt "EFI stub 32/64-bit selection" |
| 476476e7 SG |
50 | depends on EFI_STUB |
| 51 | help | |
| 52 | EFI does not support mixing 32-bit and 64-bit modes. This is a | |
| 53 | significant problem because it means that you must build a stub with | |
| 54 | the correct type for EFI to load it correctly. If you are using | |
| 55 | 32-bit EFI, select 32-bit here, else select 64-bit. Failure to do | |
| 56 | this may produce no error message - it just won't start! | |
| 57 | ||
| 58 | config EFI_STUB_32BIT | |
| 59 | bool "Produce a stub for running with 32-bit EFI" | |
| 60 | ||
| 61 | config EFI_STUB_64BIT | |
| 62 | bool "Produce a stub for running with 64-bit EFI" | |
| 63 | ||
| 867a6ac8 | 64 | endchoice |
| f4d227c9 SG |
65 | |
| 66 | config EFI_RAM_SIZE | |
| 67 | hex "Amount of EFI RAM for U-Boot" | |
| 68 | depends on EFI_APP | |
| 69 | default 0x10000000 | |
| 70 | help | |
| 71 | Set the amount of EFI RAM which is claimed by U-Boot for its own | |
| 72 | use. U-Boot allocates this from EFI on start-up (along with a few | |
| 73 | other smaller amounts) and it can never be increased after that. | |
| 74 | It is used as the RAM size in with U-Boot. |