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u-boot-brain
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x86: Allow 16-bit init to be in TPL 

At present we support having 16-bit init be in SPL or U-Boot proper, but
not TPL. Add support for this so that TPL can boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-04-25 21:58:53 -06:00 committed by Bin Meng
parent 051c31b7a4
commit d68574a72d
5 changed files with 14 additions and 5 deletions
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1
Makefile
View File

@ -1380,6 +1380,7 @@ cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
$(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
$(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
$(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
$(call if_changed,binman)

4
arch/x86/Makefile
View File

@ -20,8 +20,8 @@ endif
endif
endif # EFI
head-$(CONFIG_$(SPL_)X86_16BIT_INIT) += arch/x86/cpu/start16.o
head-$(CONFIG_$(SPL_)X86_16BIT_INIT) += arch/x86/cpu/resetvec.o
head-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += arch/x86/cpu/start16.o
head-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += arch/x86/cpu/resetvec.o
libs-y += arch/x86/cpu/
libs-y += arch/x86/lib/

2
arch/x86/cpu/intel_common/Makefile
View File

@ -3,7 +3,7 @@
# Copyright (c) 2016 Google, Inc
ifdef CONFIG_HAVE_MRC
obj-$(CONFIG_$(SPL_)X86_32BIT_INIT) += car.o
obj-$(CONFIG_$(SPL_TPL_)X86_16BIT_INIT) += car.o
obj-$(CONFIG_$(SPL_)X86_32BIT_INIT) += me_status.o
obj-$(CONFIG_$(SPL_)X86_32BIT_INIT) += report_platform.o
obj-$(CONFIG_$(SPL_)X86_32BIT_INIT) += mrc.o

2
arch/x86/cpu/u-boot-spl.lds
View File

@ -54,7 +54,7 @@ SECTIONS
/DISCARD/ : { *(.interp*) }
/DISCARD/ : { *(.gnu*) }
#ifdef CONFIG_SPL_X86_16BIT_INIT
#if defined(CONFIG_SPL_X86_16BIT_INIT) || defined(CONFIG_TPL_X86_16BIT_INIT)
/*
* The following expressions place the 16-bit Real-Mode code and
* Reset Vector at the end of the Flash ROM

10
scripts/Makefile.spl
View File

@ -228,7 +228,11 @@ ifeq ($(CONFIG_SYS_SOC),"at91")
ALL-y += $(obj)/boot.bin
endif
ifdef CONFIG_TPL_BUILD
ALL-$(CONFIG_TPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-tpl.bin
else
ALL-$(CONFIG_SPL_X86_16BIT_INIT) += $(obj)/u-boot-x86-16bit-spl.bin
endif
ALL-$(CONFIG_ARCH_ZYNQ) += $(obj)/boot.bin
ALL-$(CONFIG_ARCH_ZYNQMP) += $(obj)/boot.bin
@ -328,7 +332,7 @@ quiet_cmd_objcopy = OBJCOPY $@
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
OBJCOPYFLAGS_$(SPL_BIN)-nodtb.bin = $(SPL_OBJCFLAGS) -O binary \
$(if $(CONFIG_SPL_X86_16BIT_INIT),-R .start16 -R .resetvec)
$(if $(CONFIG_$(SPL_TPL_)X86_16BIT_INIT),-R .start16 -R .resetvec)
$(obj)/$(SPL_BIN)-nodtb.bin: $(obj)/$(SPL_BIN) FORCE
$(call if_changed,objcopy)
@ -337,6 +341,10 @@ OBJCOPYFLAGS_u-boot-x86-16bit-spl.bin := -O binary -j .start16 -j .resetvec
$(obj)/u-boot-x86-16bit-spl.bin: $(obj)/u-boot-spl FORCE
$(call if_changed,objcopy)
OBJCOPYFLAGS_u-boot-x86-16bit-tpl.bin := -O binary -j .start16 -j .resetvec
$(obj)/u-boot-x86-16bit-tpl.bin: $(obj)/u-boot-tpl FORCE
$(call if_changed,objcopy)
LDFLAGS_$(SPL_BIN) += -T u-boot-spl.lds $(LDFLAGS_FINAL)
# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.