X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.u-boot_on_efi;h=e12dd4e3e658bf7b55115cce094a20ac98a94ab1;hb=HEAD;hp=298b94e342e4cc389df587c45e8b4d067b0feaf3;hpb=f3177d02f33472352b022adbaf5c47cceebc930d;p=u-boot diff --git a/doc/README.u-boot_on_efi b/doc/README.u-boot_on_efi index 298b94e342..e12dd4e3e6 100644 --- a/doc/README.u-boot_on_efi +++ b/doc/README.u-boot_on_efi @@ -1,8 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0+ # # Copyright (C) 2015 Google, Inc -# -# SPDX-License-Identifier: GPL-2.0+ -# U-Boot on EFI ============= @@ -67,18 +65,19 @@ for that board. It will be either 32-bit or 64-bit. Alternatively, you can opt for using QEMU [1] and the OVMF [2], as detailed below. To build U-Boot as an EFI application (32-bit EFI required), enable CONFIG_EFI -and CONFIG_EFI_APP. The efi-x86 config (efi-x86_defconfig) is set up for this. -Just build U-Boot as normal, e.g. +and CONFIG_EFI_APP. The efi-x86_app config (efi-x86_app_defconfig) is set up +for this. Just build U-Boot as normal, e.g. - make efi-x86_defconfig + make efi-x86_app_defconfig make -To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), adjust an -existing config (like qemu-x86_defconfig) to enable CONFIG_EFI, CONFIG_EFI_STUB -and either CONFIG_EFI_STUB_32BIT or CONFIG_EFI_STUB_64BIT. All of these are -boolean Kconfig options. Then build U-Boot as normal, e.g. +To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), enable +CONFIG_EFI, CONFIG_EFI_STUB, and select either CONFIG_EFI_STUB_32BIT or +CONFIG_EFI_STUB_64BIT. The efi-x86_payload configs (efi-x86_payload32_defconfig +and efi-x86_payload32_defconfig) are set up for this. Then build U-Boot as +normal, e.g. - make qemu-x86_defconfig + make efi-x86_payload32_defconfig (or efi-x86_payload64_defconfig) make You will end up with one of these files depending on what you build for: @@ -213,11 +212,6 @@ Future work ----------- This work could be extended in a number of ways: -- Add a generic x86 EFI payload configuration. At present you need to modify -an existing one, but mostly the low-level x86 code is disabled when booting -on EFI anyway, so a generic 'EFI' board could be created with a suitable set -of drivers enabled. - - Add ARM support - Add 64-bit application support @@ -237,16 +231,15 @@ Where is the code? lib/efi payload stub, application, support code. Mostly arch-neutral -arch/x86/lib/efi - helper functions for the fake DRAM init, etc. These can be used by - any board that runs as a payload. - arch/x86/cpu/efi - x86 support code for running as an EFI application + x86 support code for running as an EFI application and payload -board/efi/efi-x86/efi.c +board/efi/efi-x86_app/efi.c x86 board code for running as an EFI application +board/efi/efi-x86_payload + generic x86 EFI payload board support code + common/cmd_efi.c the 'efi' command