mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
0fcac1abde
When variable size SPL is used, the BL1 expects the SPL to be encapsulated differently: instead of putting the checksum at a fixed offset in the SPL blob, prepend the blob with a header including the size and the checksum. The enhancements include - adding a command line option, '--vs' to indicate the need for the variable size encapsulation - padding the fixed size encapsulated blob with 0xff instead of random memory contents - do not silently truncate the input file, report error instead - no need to explicitly closing files/freeing memory, this all happens on exit; removing cleanups it makes code clearer - profuse commenting - modify Makefile to allow enabling the new feature per board Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
202 lines
5.4 KiB
Makefile
202 lines
5.4 KiB
Makefile
#
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# (C) Copyright 2000-2011
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011
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# Daniel Schwierzeck, daniel.schwierzeck@googlemail.com.
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#
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# (C) Copyright 2011
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# Texas Instruments Incorporated - http://www.ti.com/
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# Aneesh V <aneesh@ti.com>
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#
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Based on top-level Makefile.
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#
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CONFIG_SPL_BUILD := y
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export CONFIG_SPL_BUILD
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ifeq ($(CONFIG_TPL_BUILD),y)
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export CONFIG_TPL_BUILD
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SPL_BIN := u-boot-tpl
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else
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SPL_BIN := u-boot-spl
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endif
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include $(TOPDIR)/config.mk
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# We want the final binaries in this directory
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ifeq ($(CONFIG_TPL_BUILD),y)
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obj := $(OBJTREE)/tpl/
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SPLTREE := $(TPLTREE)
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else
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obj := $(OBJTREE)/spl/
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endif
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HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
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ifdef CONFIG_SPL_START_S_PATH
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START_PATH := $(subst ",,$(CONFIG_SPL_START_S_PATH))
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else
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START_PATH := $(CPUDIR)
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endif
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START := $(START_PATH)/start.o
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ifeq ($(CPU),x86)
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START += $(START_PATH)/start16.o
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START += $(START_PATH)/resetvec.o
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endif
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ifeq ($(CPU),ppc4xx)
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START += $(START_PATH)/resetvec.o
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endif
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ifeq ($(CPU),mpc85xx)
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START += $(START_PATH)/resetvec.o
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endif
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LIBS-y += arch/$(ARCH)/lib/
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LIBS-y += $(CPUDIR)/
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ifdef SOC
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LIBS-y += $(CPUDIR)/$(SOC)/
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endif
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LIBS-y += board/$(BOARDDIR)/
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LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
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LIBS-$(CONFIG_SPL_FRAMEWORK) += common/spl/
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LIBS-$(CONFIG_SPL_LIBCOMMON_SUPPORT) += common/
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LIBS-$(CONFIG_SPL_LIBDISK_SUPPORT) += disk/
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LIBS-$(CONFIG_SPL_I2C_SUPPORT) += drivers/i2c/
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LIBS-$(CONFIG_SPL_GPIO_SUPPORT) += drivers/gpio/
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LIBS-$(CONFIG_SPL_MMC_SUPPORT) += drivers/mmc/
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LIBS-$(CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT) += drivers/ddr/fsl/
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LIBS-$(CONFIG_SPL_SERIAL_SUPPORT) += drivers/serial/
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LIBS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += drivers/mtd/spi/
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LIBS-$(CONFIG_SPL_SPI_SUPPORT) += drivers/spi/
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LIBS-y += fs/
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LIBS-$(CONFIG_SPL_LIBGENERIC_SUPPORT) += lib/
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LIBS-$(CONFIG_SPL_POWER_SUPPORT) += drivers/power/ \
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drivers/power/pmic/
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LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/
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LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/
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LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/
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LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/
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LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/
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LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/
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LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/
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LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/net/phy/
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LIBS-$(CONFIG_SPL_MUSB_NEW_SUPPORT) += drivers/usb/musb-new/
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LIBS-$(CONFIG_SPL_USBETH_SUPPORT) += drivers/usb/gadget/
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LIBS-$(CONFIG_SPL_WATCHDOG_SUPPORT) += drivers/watchdog/
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ifneq (,$(CONFIG_MX23)$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35))
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LIBS-y += arch/$(ARCH)/imx-common/
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endif
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LIBS-$(CONFIG_ARM) += arch/arm/cpu/
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LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
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ifneq ($(CONFIG_MX23)$(CONFIG_MX35),)
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LIBS-y += arch/$(ARCH)/imx-common/
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endif
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LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
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# Add GCC lib
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ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
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PLATFORM_LIBGCC = $(SPLTREE)/arch/$(ARCH)/lib/libgcc.o
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PLATFORM_LIBS := $(filter-out %/libgcc.o, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
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endif
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START := $(addprefix $(SPLTREE)/,$(START))
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LIBS := $(addprefix $(SPLTREE)/,$(sort $(LIBS-y)))
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__START := $(subst $(obj),,$(START))
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__LIBS := $(subst $(obj),,$(LIBS))
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# Linker Script
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ifdef CONFIG_SPL_LDSCRIPT
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# need to strip off double quotes
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LDSCRIPT := $(addprefix $(SRCTREE)/,$(subst ",,$(CONFIG_SPL_LDSCRIPT)))
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot-spl.lds
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endif
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ifeq ($(wildcard $(LDSCRIPT)),)
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$(error could not find linker script)
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endif
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build := -f $(TOPDIR)/scripts/Makefile.build -C
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# Special flags for CPP when processing the linker script.
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# Pass the version down so we can handle backwards compatibility
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# on the fly.
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LDPPFLAGS += \
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-include $(TOPDIR)/include/u-boot/u-boot.lds.h \
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-include $(OBJTREE)/include/config.h \
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-DCPUDIR=$(CPUDIR) \
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$(shell $(LD) --version | \
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sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
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$(OBJTREE)/MLO: $(obj)u-boot-spl.bin
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$(OBJTREE)/tools/mkimage -T omapimage \
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-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
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$(OBJTREE)/MLO.byteswap: $(obj)u-boot-spl.bin
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$(OBJTREE)/tools/mkimage -T omapimage -n byteswap \
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-a $(CONFIG_SPL_TEXT_BASE) -d $< $@
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$(OBJTREE)/SPL : $(obj)u-boot-spl.bin depend
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$(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $@
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ALL-y += $(obj)$(SPL_BIN).bin
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ifdef CONFIG_SAMSUNG
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ALL-y += $(obj)$(BOARD)-spl.bin
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endif
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all: $(ALL-y)
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ifdef CONFIG_SAMSUNG
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ifdef CONFIG_VAR_SIZE_SPL
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VAR_SIZE_PARAM = --vs
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else
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VAR_SIZE_PARAM =
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endif
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$(obj)$(BOARD)-spl.bin: $(obj)u-boot-spl.bin
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$(OBJTREE)/tools/mk$(BOARD)spl $(VAR_SIZE_PARAM) $< $@
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endif
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$(obj)$(SPL_BIN).bin: $(obj)$(SPL_BIN)
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$(OBJCOPY) $(OBJCFLAGS) -O binary $< $@
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GEN_UBOOT = \
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cd $(obj) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) $(__START) \
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--start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
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-Map $(SPL_BIN).map -o $(SPL_BIN)
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$(obj)$(SPL_BIN): depend $(START) $(LIBS) $(obj)u-boot-spl.lds
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$(GEN_UBOOT)
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$(START):
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@:
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$(LIBS): depend
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$(MAKE) $(build) $(SRCTREE)$(dir $(subst $(SPLTREE),,$@))
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$(obj)u-boot-spl.lds: $(LDSCRIPT) depend
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$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(obj). -ansi -D__ASSEMBLY__ -P - < $< > $@
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depend: $(obj).depend
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.PHONY: depend
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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