u-boot/spl/Makefile
Ying Zhang 3aa29de0b0 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 <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:57:22 -07:00

214 lines
6 KiB
Makefile

#
# (C) Copyright 2000-2011
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# (C) Copyright 2011
# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
#
# (C) Copyright 2011
# Texas Instruments Incorporated - http://www.ti.com/
# Aneesh V <aneesh@ti.com>
#
# SPDX-License-Identifier: GPL-2.0+
#
# Based on top-level Makefile.
#
CONFIG_SPL_BUILD := y
export CONFIG_SPL_BUILD
ifeq ($(CONFIG_TPL_BUILD),y)
export CONFIG_TPL_BUILD
SPL_BIN := u-boot-tpl
else
SPL_BIN := u-boot-spl
endif
include $(TOPDIR)/config.mk
# We want the final binaries in this directory
ifeq ($(CONFIG_TPL_BUILD),y)
obj := $(OBJTREE)/tpl/
SPLTREE := $(TPLTREE)
else
obj := $(OBJTREE)/spl/
endif
HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
ifdef CONFIG_SPL_START_S_PATH
START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
else
START_PATH := $(CPUDIR)
endif
START := $(START_PATH)/start.o
ifeq ($(CPU),x86)
START += $(START_PATH)/start16.o
START += $(START_PATH)/resetvec.o
endif
ifeq ($(CPU),ppc4xx)
START += $(START_PATH)/resetvec.o
endif
ifeq ($(CPU),mpc85xx)
START += $(START_PATH)/resetvec.o
endif
LIBS-y += arch/$(ARCH)/lib/lib$(ARCH).o
LIBS-y += $(CPUDIR)/lib$(CPU).o
ifeq ($(CPU),mpc83xx)
LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
endif
ifeq ($(CPU),mpc85xx)
LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
ifdef CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
LIBS-y += arch/powerpc/cpu/mpc8xxx/ddr/libddr.o
endif
endif
ifeq ($(CPU),mpc86xx)
LIBS-y += arch/powerpc/cpu/mpc8xxx/lib8xxx.o
endif
ifdef SOC
LIBS-y += $(CPUDIR)/$(SOC)/lib$(SOC).o
endif
LIBS-y += board/$(BOARDDIR)/lib$(BOARD).o
LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/lib$(VENDOR).o
LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/libspl.o
LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/libcommon.o
LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/libdisk.o
LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/libi2c.o
LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/libgpio.o
LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/libmmc.o
LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/libserial.o
LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/libspi_flash.o
LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/libspi.o
LIBS-$(CONFIG_SPL_FAT_SUPPORT) += fs/fat/libfat.o
LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/libgeneric.o
LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/libpower.o
LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o
LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/libnet.o
LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/libnet.o
LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/libphy.o
LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/libphy.o
LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/libusb_musb-new.o
LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/libusb_gadget.o
ifneq ($(CONFIG_OMAP_COMMON),)
LIBS-y += $(CPUDIR)/omap-common/libomap-common.o
endif
ifneq (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
endif
ifneq ($(CONFIG_TEGRA),)
LIBS-y += arch/$(ARCH)/cpu/$(SOC)-common/lib$(SOC)-common.o
LIBS-y += arch/$(ARCH)/cpu/tegra-common/libcputegra-common.o
LIBS-y += $(CPUDIR)/tegra-common/libtegra-common.o
endif
ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
LIBS-y += arch/$(ARCH)/imx-common/libimx-common.o
endif
ifeq ($(SOC),exynos)
LIBS-y += $(CPUDIR)/s5p-common/libs5p-common.o
endif
# Add GCC lib
ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
endif
START := $(addprefix $(SPLTREE)/,$(START))
LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
__START := $(subst $(obj),,$(START))
__LIBS := $(subst $(obj),,$(LIBS))
# Linker Script
ifdef CONFIG_SPL_LDSCRIPT
# need to strip off double quotes
LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
endif
ifeq ($(wildcard $(LDSCRIPT)),)
$(error could not find linker script)
endif
# Special flags for CPP when processing the linker script.
# Pass the version down so we can handle backwards compatibility
# on the fly.
LDPPFLAGS += \
-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
-include $(OBJTREE)/include/config.h \
-DCPUDIR=$(CPUDIR) \
$(shell $(LD) --version | \
sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
$(OBJTREE)/MLO: $(obj)u-boot-spl.bin
$(OBJTREE)/tools/mkimage -T omapimage \
-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
$(OBJTREE)/MLO.byteswap: $(obj)u-boot-spl.bin
$(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
$(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend
$(MAKE) -C $(SRCTREE)/arch/arm/imx-common $@
ALL-y += $(obj)$(SPL_BIN).bin
ifdef CONFIG_SAMSUNG
ALL-y += $(obj)$(BOARD)-spl.bin
endif
all: $(ALL-y)
ifdef CONFIG_SAMSUNG
$(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
$(OBJTREE)/tools/mk$(BOARD)spl \
$(obj)u-boot-spl.bin $(obj)$(BOARD)-spl.bin
endif
$(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN)
$(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
GEN_UBOOT = \
cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
-Map $(SPL_BIN).map -o $(SPL_BIN)
$(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds
$(GEN_UBOOT)
$(START): depend
$(MAKE) -C $(SRCTREE)/$(START_PATH) $@
$(LIBS): depend
$(MAKE) -C $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
depend: $(obj).depend
.PHONY: depend
# defines $(obj).depend target
include $(SRCTREE)/rules.mk