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https://github.com/brain-hackers/u-boot-brain
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![Shyam Saini](/assets/img/avatar_default.png)
Writing/updating boot image in nand device is not straight forward in i.MX6 platform and it requires boot control block(BCB) to be configured. It becomes difficult to use uboot 'nand' command to write BCB since it requires platform specific attributes need to be taken care of. It is even difficult to use existing msx-nand.c driver by incorporating BCB attributes like mxs_dma_desc does because it requires change in mtd and nand command. So, cmd_nandbcb implemented in arch/arm/mach-imx BCB contains two data structures, Firmware Configuration Block(FCB) and Discovered Bad Block Table(DBBT). FCB has nand timings, DBBT search area, page address of firmware. On summary, nandbcb update will - erase the entire partition - create BCB by creating 2 FCB/DBBT block followed by 1 FW block based on partition size and erasesize. - fill FCB/DBBT structures - write FW/SPL on FW1 - write FCB/DBBT in first 2 blocks for nand boot, up on reset bootrom look for FCB structure in first block's if FCB found the nand timings are loaded for further reads. once FCB read done, DTTB will load and finally firmware will be loaded which is boot image. Refer section "NAND Boot" from doc/imx/common/imx6.txt for more usage information. Reviewed-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Sergey Kubushyn <ksi@koi8.net> Signed-off-by: Shyam Saini <shyam.saini@amarulasolutions.com>
211 lines
6.2 KiB
Makefile
211 lines
6.2 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# (C) Copyright 2000-2006
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# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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#
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# (C) Copyright 2011 Freescale Semiconductor, Inc.
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ifeq ($(SOC),$(filter $(SOC),mx25 mx35 mx5 mx6 mx7 imx8m vf610))
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obj-y = iomux-v3.o
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endif
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ifeq ($(SOC),$(filter $(SOC),imx8m))
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ifneq ($(CONFIG_SPL_BUILD),y)
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obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
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endif
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obj-$(CONFIG_ENV_IS_IN_MMC) += mmc_env.o
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obj-$(CONFIG_FEC_MXC) += mac.o
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obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
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obj-y += cpu.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx5 mx6))
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obj-y += cpu.o speed.o
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obj-$(CONFIG_GPT_TIMER) += timer.o
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obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx7 mx6 mxs imx8m imx8))
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obj-y += misc.o
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obj-$(CONFIG_SPL_BUILD) += spl.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx7))
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obj-y += cpu.o
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obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
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obj-$(CONFIG_ENV_IS_IN_MMC) += mmc_env.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx5 mx6 mx7))
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obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx6 mx7))
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obj-y += cache.o init.o
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obj-$(CONFIG_FEC_MXC) += mac.o
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obj-$(CONFIG_IMX_RDC) += rdc-sema.o
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ifneq ($(CONFIG_SPL_BUILD),y)
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obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
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endif
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obj-$(CONFIG_SATA) += sata.o
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obj-$(CONFIG_SECURE_BOOT) += hab.o
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obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o
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endif
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ifeq ($(SOC),$(filter $(SOC),mx7ulp))
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obj-y += cache.o
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obj-$(CONFIG_SECURE_BOOT) += hab.o
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endif
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ifeq ($(SOC),$(filter $(SOC),vf610))
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obj-y += ddrmc-vf610.o
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obj-$(CONFIG_DDRMC_VF610_CALIBRATION) += ddrmc-vf610-calibration.o
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endif
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ifneq ($(CONFIG_SPL_BUILD),y)
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obj-$(CONFIG_CMD_BMODE) += cmd_bmode.o
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obj-$(CONFIG_CMD_HDMIDETECT) += cmd_hdmidet.o
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obj-$(CONFIG_CMD_DEKBLOB) += cmd_dek.o
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obj-$(CONFIG_CMD_NANDBCB) += cmd_nandbcb.o
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endif
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PLUGIN = board/$(BOARDDIR)/plugin
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ifeq ($(CONFIG_USE_IMXIMG_PLUGIN),y)
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$(PLUGIN).o: $(PLUGIN).S FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,as_o_S)
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$(PLUGIN).bin: $(PLUGIN).o FORCE
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$(Q)mkdir -p $(dir $@)
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$(OBJCOPY) -O binary --gap-fill 0xff $< $@
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else
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$(PLUGIN).bin:
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endif
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quiet_cmd_cpp_cfg = CFGS $@
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cmd_cpp_cfg = $(CPP) $(cpp_flags) -x c -o $@ $<
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# mkimage source config file
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IMX_CONFIG = $(CONFIG_IMX_CONFIG:"%"=%)
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# How to create a cpp processed config file, they all use the same source
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%.cfgout: $(IMX_CONFIG) FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cpp_cfg)
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ifeq ($(CONFIG_ARCH_IMX8), y)
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CNTR_DEPFILES := $(srctree)/tools/imx_cntr_image.sh
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IMAGE_TYPE := imx8image
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ifeq ($(CONFIG_SPL_BUILD),y)
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SPL_DEPFILE_EXISTS := $(shell $(CPP) $(cpp_flags) -x c -o spl/u-boot-spl.cfgout $(srctree)/$(IMX_CONFIG); if [ -f spl/u-boot-spl.cfgout ]; then $(CNTR_DEPFILES) spl/u-boot-spl.cfgout; echo $$?; fi)
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endif
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DEPFILE_EXISTS := $(shell $(CPP) $(cpp_flags) -x c -o u-boot-dtb.cfgout $(srctree)/$(IMX_CONFIG); if [ -f u-boot-dtb.cfgout ]; then $(CNTR_DEPFILES) u-boot-dtb.cfgout; echo $$?; fi)
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else ifeq ($(CONFIG_ARCH_IMX8M), y)
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IMAGE_TYPE := imx8mimage
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IMX8M_DEPFILES := $(srctree)/tools/imx8m_image.sh
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DEPFILE_EXISTS := $(shell $(CPP) $(cpp_flags) -x c -o spl/u-boot-spl.cfgout $(srctree)/$(IMX_CONFIG);if [ -f spl/u-boot-spl.cfgout ]; then $(IMX8M_DEPFILES) spl/u-boot-spl.cfgout 0; echo $$?; fi)
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else
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IMAGE_TYPE := imximage
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DEPFILE_EXISTS := 0
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endif
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MKIMAGEFLAGS_u-boot.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
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-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
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u-boot.imx: MKIMAGEOUTPUT = u-boot.imx.log
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u-boot.imx: u-boot.bin u-boot.cfgout $(PLUGIN).bin FORCE
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$(call if_changed,mkimage)
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ifeq ($(CONFIG_MULTI_DTB_FIT),y)
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MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
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-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
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u-boot-dtb.imx: MKIMAGEOUTPUT = u-boot-dtb.imx.log
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u-boot-dtb.imx: u-boot-fit-dtb.bin u-boot-dtb.cfgout $(PLUGIN).bin FORCE
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ifeq ($(DEPFILE_EXISTS),0)
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$(call if_changed,mkimage)
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endif
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else ifeq ($(CONFIG_OF_SEPARATE),y)
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MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
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-T $(IMAGE_TYPE) -e $(CONFIG_SYS_TEXT_BASE)
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u-boot-dtb.imx: MKIMAGEOUTPUT = u-boot-dtb.imx.log
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u-boot-dtb.imx: u-boot-dtb.bin u-boot-dtb.cfgout $(PLUGIN).bin FORCE
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ifeq ($(DEPFILE_EXISTS),0)
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$(call if_changed,mkimage)
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endif
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endif
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ifdef CONFIG_ARM64
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ifeq ($(CONFIG_ARCH_IMX8M), y)
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SPL:
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MKIMAGEFLAGS_flash.bin = -n spl/u-boot-spl.cfgout \
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-T $(IMAGE_TYPE) -e $(CONFIG_SPL_TEXT_BASE)
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flash.bin: MKIMAGEOUTPUT = flash.log
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spl/u-boot-spl-ddr.bin: spl/u-boot-spl.bin spl/u-boot-spl.cfgout FORCE
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ifeq ($(DEPFILE_EXISTS),0)
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$(IMX8M_DEPFILES) spl/u-boot-spl.cfgout 1
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endif
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flash.bin: spl/u-boot-spl-ddr.bin u-boot.itb FORCE
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ifeq ($(DEPFILE_EXISTS),0)
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$(call if_changed,mkimage)
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endif
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endif
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ifeq ($(CONFIG_ARCH_IMX8), y)
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SPL:
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MKIMAGEFLAGS_flash.bin = -n spl/u-boot-spl.cfgout -T $(IMAGE_TYPE) -e 0x100000
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flash.bin: MKIMAGEOUTPUT = flash.log
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flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
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ifeq ($(SPL_DEPFILE_EXISTS),0)
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$(call if_changed,mkimage)
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endif
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endif
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else
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MKIMAGEFLAGS_SPL = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \
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-T $(IMAGE_TYPE) -e $(CONFIG_SPL_TEXT_BASE)
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SPL: MKIMAGEOUTPUT = SPL.log
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SPL: spl/u-boot-spl.bin spl/u-boot-spl.cfgout $(PLUGIN).bin FORCE
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$(call if_changed,mkimage)
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MKIMAGEFLAGS_u-boot.uim = -A arm -O U-Boot -a $(CONFIG_SYS_TEXT_BASE) \
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-e $(CONFIG_SYS_TEXT_BASE) -C none -T firmware
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u-boot.uim: u-boot.bin FORCE
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$(call if_changed,mkimage)
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OBJCOPYFLAGS += -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
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append = cat $(filter-out $< $(PHONY), $^) >> $@
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quiet_cmd_pad_cat = CAT $@
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cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
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u-boot-with-spl.imx: SPL u-boot.uim FORCE
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$(call if_changed,pad_cat)
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u-boot-with-nand-spl.imx: spl/u-boot-nand-spl.imx u-boot.uim FORCE
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$(call if_changed,pad_cat)
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quiet_cmd_u-boot-nand-spl_imx = GEN $@
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cmd_u-boot-nand-spl_imx = (printf '\000\000\000\000\106\103\102\040\001' && \
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dd bs=1015 count=1 if=/dev/zero 2>/dev/null) | cat - $< > $@
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spl/u-boot-nand-spl.imx: SPL FORCE
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$(call if_changed,u-boot-nand-spl_imx)
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endif
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targets += $(addprefix ../../../,SPL spl/u-boot-spl.cfgout u-boot-dtb.cfgout u-boot.cfgout u-boot.uim spl/u-boot-nand-spl.imx)
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obj-$(CONFIG_ARM64) += lowlevel.o sip.o
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obj-$(CONFIG_MX5) += mx5/
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obj-$(CONFIG_MX6) += mx6/
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obj-$(CONFIG_MX7) += mx7/
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obj-$(CONFIG_ARCH_MX7ULP) += mx7ulp/
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obj-$(CONFIG_IMX8M) += imx8m/
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obj-$(CONFIG_ARCH_IMX8) += imx8/
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