From 3aa29de0b04be9d56251474d1036b23da249f607 Mon Sep 17 00:00:00 2001 From: Ying Zhang Date: Fri, 16 Aug 2013 15:16:15 +0800 Subject: TPL : introduce the TPL based on the SPL Due to the nand SPL on some board(e.g. P1022DS)has a size limit, it can not be more than 4K. So, the SPL cannot initialize the DDR with the SPD code. This patch introduces TPL to enable a loader stub that is loaded by the code from the SPL. It initializes the DDR with the SPD or other operations. The TPL's size is sizeable, the maximum size is decided by the memory's size that TPL runs. It initializes the DDR through SPD code, and copys final uboot image to DDR. So there are three stage uboot images: * spl_boot, * tpl_boot, * final uboot image Signed-off-by: Ying Zhang Acked-by: York Sun --- Makefile | 50 ++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 8 deletions(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 43b57da..8d7159d 100644 --- a/Makefile +++ b/Makefile @@ -102,10 +102,11 @@ endif # ifneq ($(BUILD_DIR),) OBJTREE := $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR)) SPLTREE := $(OBJTREE)/spl +TPLTREE := $(OBJTREE)/tpl SRCTREE := $(CURDIR) TOPDIR := $(SRCTREE) LNDIR := $(OBJTREE) -export TOPDIR SRCTREE OBJTREE SPLTREE +export TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE MKCONFIG := $(SRCTREE)/mkconfig export MKCONFIG @@ -397,6 +398,7 @@ ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin +ALL-$(CONFIG_TPL) += $(obj)tpl/u-boot-tpl.bin ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin ifneq ($(CONFIG_SPL_TARGET),) ALL-$(CONFIG_SPL) += $(obj)$(subst ",,$(CONFIG_SPL_TARGET)) @@ -475,13 +477,25 @@ $(obj)u-boot.sha1: $(obj)u-boot.bin $(obj)u-boot.dis: $(obj)u-boot $(OBJDUMP) -d $< > $@ +# $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate, +# $(4) is pad-to +SPL_PAD_APPEND = \ + $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \ + $(1) $(obj)$(3); \ + cat $(obj)$(3) $(obj)$(2) > $@; \ + rm $(obj)$(3) +ifdef CONFIG_TPL +SPL_PAYLOAD := $(obj)tpl/u-boot-with-tpl.bin +else +SPL_PAYLOAD := $(obj)u-boot.bin +endif -$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin - $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) \ - -I binary -O binary $< $(obj)spl/u-boot-spl-pad.bin - cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@ - rm $(obj)spl/u-boot-spl-pad.bin +$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(SPL_PAYLOAD) + $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO)) + +$(obj)tpl/u-boot-with-tpl.bin: $(obj)tpl/u-boot-tpl.bin $(obj)u-boot.bin + $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO)) $(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin $(MAKE) -C $(SRCTREE)/arch/arm/imx-common \ @@ -607,6 +621,9 @@ $(obj)u-boot-nand.bin: nand_spl $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin: $(SUBDIR_TOOLS) depend $(MAKE) -C spl all +$(obj)tpl/u-boot-tpl.bin: $(SUBDIR_TOOLS) depend + $(MAKE) -C spl all CONFIG_TPL_BUILD=y + updater: $(MAKE) -C tools/updater all @@ -614,6 +631,7 @@ updater: # parallel sub-makes creating .depend files simultaneously. depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) \ $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk \ $(obj)include/autoconf.mk \ $(obj)include/generated/generic-asm-offsets.h \ $(obj)include/generated/asm-offsets.h @@ -696,6 +714,15 @@ $(obj)include/autoconf.mk: $(obj)include/config.h mv $@.tmp $@ # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL) +$(obj)include/tpl-autoconf.mk: $(obj)include/config.h + @$(XECHO) Generating $@ ; \ + set -e ; \ + : Extract the config macros ; \ + $(CPP) $(CFLAGS) -DCONFIG_TPL_BUILD -DCONFIG_SPL_BUILD\ + -DDO_DEPS_ONLY -dM include/common.h | \ + sed -n -f tools/scripts/define2mk.sed > $@.tmp && \ + mv $@.tmp $@ + $(obj)include/spl-autoconf.mk: $(obj)include/config.h @$(XECHO) Generating $@ ; \ set -e ; \ @@ -706,12 +733,14 @@ $(obj)include/spl-autoconf.mk: $(obj)include/config.h $(obj)include/generated/generic-asm-offsets.h: $(obj)include/autoconf.mk.dep \ $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk \ $(obj)lib/asm-offsets.s @$(XECHO) Generating $@ tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@ $(obj)lib/asm-offsets.s: $(obj)include/autoconf.mk.dep \ $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk \ $(src)lib/asm-offsets.c @mkdir -p $(obj)lib $(CC) -DDO_DEPS_ONLY \ @@ -720,12 +749,14 @@ $(obj)lib/asm-offsets.s: $(obj)include/autoconf.mk.dep \ $(obj)include/generated/asm-offsets.h: $(obj)include/autoconf.mk.dep \ $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk \ $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s @$(XECHO) Generating $@ tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@ $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s: $(obj)include/autoconf.mk.dep \ - $(obj)include/spl-autoconf.mk + $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk @mkdir -p $(obj)$(CPUDIR)/$(SOC) if [ -f $(src)$(CPUDIR)/$(SOC)/asm-offsets.c ];then \ $(CC) -DDO_DEPS_ONLY \ @@ -798,7 +829,8 @@ unconfig: @rm -f $(obj)include/config.h $(obj)include/config.mk \ $(obj)board/*/config.tmp $(obj)board/*/*/config.tmp \ $(obj)include/autoconf.mk $(obj)include/autoconf.mk.dep \ - $(obj)include/spl-autoconf.mk + $(obj)include/spl-autoconf.mk \ + $(obj)include/tpl-autoconf.mk %_config:: unconfig @$(MKCONFIG) -A $(@:_config=) @@ -884,6 +916,8 @@ clobber: tidy @rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map} @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map} @rm -f $(obj)spl/u-boot-spl.lds + @rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map} + @rm -f $(obj)tpl/u-boot-spl.lds @rm -f $(obj)MLO MLO.byteswap @rm -f $(obj)SPL @rm -f $(obj)tools/xway-swap-bytes -- cgit v1.1