On Fri, Jul 24, 2015 at 5:03 PM, Bin Meng bmeng.cn@gmail.com wrote:
Hi Simon,
On Wed, Jul 22, 2015 at 11:49 PM, Simon Glass sjg@chromium.org wrote:
When U-Boot is running from EFI some of the x86 init is replaced with EFI-specific init. For example, since DRAM has already been set up, we only need to find it, not init it. Add these functions so that boards can easily allow booting from EFI if required.
Signed-off-by: Simon Glass sjg@chromium.org
arch/x86/lib/Makefile | 1 + arch/x86/lib/efi/Makefile | 9 +++ arch/x86/lib/efi/car.S | 12 ++++ arch/x86/lib/efi/efi.c | 151 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 173 insertions(+) create mode 100644 arch/x86/lib/efi/Makefile create mode 100644 arch/x86/lib/efi/car.S create mode 100644 arch/x86/lib/efi/efi.c
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index fb4a73c..3db373c 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -31,6 +31,7 @@ obj-y += bios_interrupts.o obj-$(CONFIG_CMD_BOOTM) += bootm.o obj-y += cmd_boot.o obj-$(CONFIG_HAVE_FSP) += cmd_hob.o +obj-$(CONFIG_EFI_STUB) += efi/ obj-y += gcc.o obj-y += init_helpers.o obj-y += interrupts.o diff --git a/arch/x86/lib/efi/Makefile b/arch/x86/lib/efi/Makefile new file mode 100644 index 0000000..a308a0e --- /dev/null +++ b/arch/x86/lib/efi/Makefile @@ -0,0 +1,9 @@ +# +# (C) Copyright 2002-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +#
+obj-y += car.o +obj-y += efi.o diff --git a/arch/x86/lib/efi/car.S b/arch/x86/lib/efi/car.S new file mode 100644 index 0000000..6dda058 --- /dev/null +++ b/arch/x86/lib/efi/car.S @@ -0,0 +1,12 @@ +/*
- Copyright (c) 2015 Google, Inc
- Written by Simon Glass sjg@chromium.org
- SPDX-License-Identifier: GPL-2.0+
- */
+.section .text
This is not needed.
Except this nits,
Reviewed-by: Bin Meng bmeng.cn@gmail.com
[snip]
Regards, Bin