2012/8/14 Zhi-zhou Zhang etou.zh@gmail.com:

diff --git a/arch/mips/config.mk b/arch/mips/config.mk index 6ab8acd..12df150 100644 --- a/arch/mips/config.mk +++ b/arch/mips/config.mk @@ -23,9 +23,13 @@

CROSS_COMPILE ?= mips_4KC-

+ifeq "$(CPU)" "mips64" +CONFIG_STANDALONE_LOAD_ADDR ?= 0xFfffFfff80200000 -T mips64.lds +PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ -DCONFIG_64BIT +else CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds

PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ +endif

please define CONFIG_64BIT and CONFIG_STANDALONE_LOAD_ADDR in your board config

# # From Linux arch/mips/Makefile @@ -47,8 +51,16 @@ PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ # On the other hand, we want PIC in the U-Boot code to relocate it from ROM # to RAM. $28 is always used as gp. # +ifeq "$(CPU)" "mips64" +PLATFORM_CPPFLAGS += -G 0 -mabicalls -mabi=64 -fpic +PLATFORM_CPPFLAGS += -msoft-float +PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib -m elf64ltsmip +PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections +LDFLAGS_FINAL += --gc-sections +else PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic PLATFORM_CPPFLAGS += -msoft-float PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections LDFLAGS_FINAL += --gc-sections +endif

do not duplicate code. Append -m elf64ltsmip and -mabi=64 in arch/mips/cpu/mips64/config.mk