diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/Kconfig | 10 | ||||
| -rw-r--r-- | src/arch/x86/Makefile.inc | 8 |
2 files changed, 14 insertions, 4 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 204a9be052..89e142a3ad 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -83,6 +83,16 @@ config RAMBASE hex default 0x100000 +# Traditionally BIOS region on SPI flash boot media was memory mapped right below +# 4G and it was the last region in the IFD. This way translation between CPU +# address space to flash address was trivial. However some IFDs on newer SoCs +# have BIOS region sandwiched between descriptor and other regions. Turning off +# this option enables soc code to provide custom mmap_boot.c which can be used to +# implement complex translation. +config X86_TOP4G_BOOTMEDIA_MAP + bool + default y + # This is something you almost certainly don't want to mess with. # How many SIPIs do we send when starting up APs and cores? # The answer in 2000 or so was '2'. Nowadays, on many systems, diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 21084d3fd8..56e2ad0d59 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -105,7 +105,7 @@ ifeq ($(CONFIG_ARCH_BOOTBLOCK_X86_32)$(CONFIG_ARCH_BOOTBLOCK_X86_64),y) bootblock-y += boot.c bootblock-y += memcpy.c bootblock-y += memset.c -bootblock-y += mmap_boot.c +bootblock-$(CONFIG_X86_TOP4G_BOOTMEDIA_MAP) += mmap_boot.c bootblock-y += id.S $(call src-to-obj,bootblock,$(dir)/id.S): $(obj)/build.h @@ -354,7 +354,7 @@ romstage-$(CONFIG_ARCH_RAMSTAGE_X86_32) += cpu_common.c romstage-y += memset.c romstage-y += memcpy.c romstage-y += memmove.c -romstage-y += mmap_boot.c +romstage-$(CONFIG_X86_TOP4G_BOOTMEDIA_MAP) += mmap_boot.c romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c @@ -384,7 +384,7 @@ ramstage-y += memset.c ramstage-y += memcpy.c ramstage-y += memmove.c ramstage-y += ebda.c -ramstage-y += mmap_boot.c +ramstage-$(CONFIG_X86_TOP4G_BOOTMEDIA_MAP) += mmap_boot.c ramstage-$(CONFIG_COOP_MULTITASKING) += thread.c ramstage-$(CONFIG_COOP_MULTITASKING) += thread_switch.S ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c @@ -392,7 +392,7 @@ ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c smm-y += memset.c smm-y += memcpy.c smm-y += memmove.c -smm-y += mmap_boot.c +smm-$(CONFIG_X86_TOP4G_BOOTMEDIA_MAP) += mmap_boot.c ifeq ($(CONFIG_ARCH_RAMSTAGE_X86_32),y) rmodules_x86_32-y += memset.c |