从零开始学习 sg200x 多核开发之 sophpi 编译生成 fip.bin 流程梳理

本文主要介绍 sophpi 编译生成 fip.bin 流程。

1、编译前准备

sophpi 的基本编译流程如下:

shell 复制代码
$ source build/cvisetup.sh
$ defconfig sg2002_wevb_riscv64_sd
$ clean_all
$ build_all
$ pack_burn_image

注:

  1. 需要在 bash 下运行
  2. clean_all 非必要可以不执行。

生成的固件位置: install/soc_sg2002_wevb_riscv64_sd/milkv-duo.img。build_milkv.sh 也是一步一步调用这些函数。

build/cvisetup.sh 通过软链接,链接到 build/envsetup_soc.sh,相关的编译命令都在这个文件中。

build/envsetup_soc.sh 文件中,定义了一些后续编译会用到的变量,如:

  • TOP_DIR=$(gettop)
  • BUILD_PATH="$TOP_DIR/build"

2、编译入口

总的编译命令,可以不调用 clean_all 函数,不然每次都要全编译。

shell 复制代码
function clean_all()
{
  clean_uboot
  clean_opensbi
  clean_rtos
  [[ "$ATF_SRC" == y ]] && clean_atf
  clean_kernel
  clean_ramdisk
  clean_3rd_party
  if [ "$TPU_REL" = 1 ]; then
    clean_ive_sdk
    clean_ivs_sdk
    clean_tpu_sdk
    clean_tdl_sdk
    clean_cnv_sdk
  fi
  clean_middleware
  clean_osdrv
}

重点看一下 build_all 函数,位于 build/envsetup_soc.sh 文件中

shell 复制代码
function build_all()
{(
  build_uboot || return $?
  build_kernel || return $?
  build_ramboot || return $?
  build_osdrv || return $?
  build_3rd_party || return $?
  build_middleware || return $?
  if [ "$TPU_REL" = 1 ]; then
    build_tpu_sdk || return $?
    build_ive_sdk || return $?
    build_ivs_sdk || return $?
    build_tdl_sdk  || return $?
  fi
  pack_cfg || return $?
  pack_rootfs || return $?
  pack_data || return $?
  pack_system || return $?
  copy_tools || return $?
  pack_upgrade || return $?
)}

根据上面函数,先调用 build_uboot 函数。

3、uboot编译

  1. build_uboot 函数在 build/milkvsetup.sh 文件中定义
shell 复制代码
function build_uboot()
{(
  print_notice "Run ${FUNCNAME[0]}() function"
  _build_uboot_env
  _build_opensbi_env
  _link_uboot_logo
  cd "$BUILD_PATH" || return
  make u-boot || return "$?"
)}
  1. 查看 build/Makefile 文件中 203 行 u-boot 依赖 u-boot-dep
Makefile 复制代码
u-boot: u-boot-dep

继续找 u-boot-dep 。。。(文件真多啊。。。)

根据 build/.config 中定义了 CONFIG_FIP_V2=y 找到 build/Makefile 文件

Makefile 复制代码
ifeq (${CONFIG_FIP_V1},y)
include scripts/fip_v1.mk
else ifeq (${CONFIG_FIP_V2},y)
include scripts/fip_v2.mk
else
$(error no fip version)
endif

flp_v2.mk

Makefile 复制代码
u-boot-dep: fsbl-build ${OUTPUT_DIR}/elf
	$(call print_target)
ifeq ($(call qstrip,${CONFIG_ARCH}),riscv)
	${Q}cp ${OPENSBI_PATH}/build/platform/generic/firmware/fw_payload.bin ${OUTPUT_DIR}/fw_payload_uboot.bin
	${Q}cp ${OPENSBI_PATH}/build/platform/generic/firmware/fw_payload.elf ${OUTPUT_DIR}/elf/fw_payload_uboot.elf
endif
  1. u-boot-dep 又依赖 fsbl-build
    fsbl-build 定义在 scripts/fip_v2.mk 文件
Makefile 复制代码
ifeq ($(call qstrip,${CONFIG_ARCH}),riscv)
fsbl-build: opensbi
endif
ifeq (${CONFIG_ENABLE_FREERTOS},y)
fsbl-build: rtos
fsbl%: export BLCP_2ND_PATH=${FREERTOS_PATH}/cvitek/install/bin/cvirtos.bin
fsbl%: export RTOS_DUMP_PRINT_ENABLE=$(CONFIG_ENABLE_RTOS_DUMP_PRINT)
fsbl%: export RTOS_DUMP_PRINT_SZ_IDX=$(CONFIG_DUMP_PRINT_SZ_IDX)
fsbl%: export RTOS_FAST_IMAGE_TYPE=${CONFIG_FAST_IMAGE_TYPE}
fsbl%: export RTOS_ENABLE_FREERTOS=${CONFIG_ENABLE_FREERTOS}
endif
fsbl%: export FSBL_SECURE_BOOT_SUPPORT=${CONFIG_FSBL_SECURE_BOOT_SUPPORT}
fsbl%: export ARCH=$(call qstrip,${CONFIG_ARCH})
fsbl%: export OD_CLK_SEL=${CONFIG_OD_CLK_SEL}
fsbl%: export VC_CLK_OVERDRIVE=${CONFIG_VC_CLK_OVERDRIVE}
fsbl%: export SUSPEND=${CONFIG_SUSPEND}
fsbl%: export TPU_PERF_MODE=$(shell if [ "${CONFIG_CHIP_cv1812cp}" = "y" ] || [ "${CONFIG_CHIP_sg2002}" = "y" ] || [ "${CONFIG_CHIP_cv1812cpa}" = "y" ]; then echo "y";else echo "n";fi)
fsbl%: export BUILD_BOOT0=${CONFIG_ENABLE_BOOT0}
fsbl%: export BUILD_FASTBOOT0=${CONFIG_ENABLE_FASTBOOT0}
fsbl%: export STORAGE=${STORAGE_TYPE}

ifeq (${CONFIG_ENABLE_BOOT0},y)
fsbl-build: u-boot-build memory-map
	$(call print_target)
	${Q}mkdir -p ${FSBL_PATH}/build
	${Q}ln -snrf -t ${FSBL_PATH}/build ${CVI_BOARD_MEMMAP_H_PATH}
	${Q}$(MAKE) -j${NPROC} -C ${FSBL_PATH} O=${FSBL_OUTPUT_PATH}
	${Q}cp ${FSBL_OUTPUT_PATH}/boot0 ${OUTPUT_DIR}/
else
fsbl-build: u-boot-build memory-map
	$(call print_target)
	${Q}mkdir -p ${FSBL_PATH}/build
	${Q}ln -snrf -t ${FSBL_PATH}/build ${CVI_BOARD_MEMMAP_H_PATH}
	${Q}$(MAKE) -j${NPROC} -C ${FSBL_PATH} O=${FSBL_OUTPUT_PATH} BLCP_2ND_PATH=${BLCP_2ND_PATH} \
		LOADER_2ND_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot-raw.bin
	${Q}cp ${FSBL_OUTPUT_PATH}/fip.bin ${OUTPUT_DIR}/
ifeq (${CONFIG_UBOOT_SPL_CUSTOM},y)
	${Q}$(MAKE) -C ${FSBL_PATH} clean O=${FSBL_OUTPUT_PATH}
	${Q}$(MAKE) -j${NPROC} -C ${FSBL_PATH} O=${FSBL_OUTPUT_PATH} BLCP_2ND_PATH=${BLCP_2ND_PATH} \
		CONFIG_SKIP_UBOOT=$(CONFIG_SKIP_UBOOT) LOADER_2ND_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/spl/u-boot-spl-raw.bin
	${Q}cp ${FSBL_OUTPUT_PATH}/fip.bin ${OUTPUT_DIR}/fip_spl.bin
else
	${Q}cp ${FSBL_OUTPUT_PATH}/fip.bin ${OUTPUT_DIR}/fip_spl.bin
endif
endif

又依赖 opensbi

Makefile 复制代码
opensbi: export CROSS_COMPILE=$(CONFIG_CROSS_COMPILE_SDK)
opensbi: u-boot-build
	$(call print_target)
	${Q}$(MAKE) -j${NPROC} -C ${OPENSBI_PATH} PLATFORM=generic \
	    FW_PAYLOAD_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot-raw.bin \
	    FW_FDT_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/arch/riscv/dts/${CHIP}_${BOARD}.dtb

又依赖 u-boot-build, build/Makefile中定义了 u-boot-build,所以会先执行 u-boot-build

Makefile 复制代码
u-boot-build: memory-map
u-boot-build: u-boot-dts
u-boot-build: ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER} ${UBOOT_CVIPART_DEP} ${UBOOT_OUTPUT_CONFIG_PATH}
	$(call print_target)
	${Q}ln -snrf ${CVI_BOARD_MEMMAP_H_PATH} ${UBOOT_PATH}/include/
	${Q}rm -f ${UBOOT_CVI_BOARD_INIT_PATH}
	${Q}ln -s ${BUILD_PATH}/boards/${CHIP_ARCH_L}/${PROJECT_FULLNAME}/u-boot/cvi_board_init.c ${UBOOT_CVI_BOARD_INIT_PATH}
	${Q}rm -f ${UBOOT_CVITEK_PATH}
	${Q}ln -s ${BUILD_PATH}/boards/${CHIP_ARCH_L}/${PROJECT_FULLNAME}/u-boot/cvitek.h ${UBOOT_CVITEK_PATH}
	${Q}$(MAKE) -j${NPROC} -C ${UBOOT_PATH} olddefconfig
	${Q}$(MAKE) -j${NPROC} -C ${UBOOT_PATH} all
	${Q}cat ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot.bin > ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot-raw.bin
ifeq (${CONFIG_UBOOT_SPL_CUSTOM},y)
	${Q}cat ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/spl/u-boot-spl.bin > ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/spl/u-boot-spl-raw.bin
endif

依赖 memory-map, build/scripts/mmap.mk 中定义了 memory-map

Makefile 复制代码
.PHONY: memory-map

CVI_BOARD_MEMMAP_H_PATH := ${BUILD_PATH}/output/${PROJECT_FULLNAME}/cvi_board_memmap.h
CVI_BOARD_MEMMAP_CONF_PATH := ${BUILD_PATH}/output/${PROJECT_FULLNAME}/cvi_board_memmap.conf
CVI_BOARD_MEMMAP_LD_PATH:= ${BUILD_PATH}/output/${PROJECT_FULLNAME}/cvi_board_memmap.ld

BOARD_MMAP_PATH := ${BORAD_FOLDER_PATH}/memmap.py
MMAP_CONV_PY := ${BUILD_PATH}/scripts/mmap_conv.py


${CVI_BOARD_MEMMAP_H_PATH}: ${BOARD_MMAP_PATH} ${MMAP_CONV_PY}
	$(call print_target)
	mkdir -p $(dir $@)
	@${MMAP_CONV_PY} --type h $< $@

${CVI_BOARD_MEMMAP_CONF_PATH}: ${BOARD_MMAP_PATH} ${MMAP_CONV_PY}
	$(call print_target)
	@mkdir -p $(dir $@)
	@${MMAP_CONV_PY} --type conf $< $@

${CVI_BOARD_MEMMAP_LD_PATH}: ${BOARD_MMAP_PATH} ${MMAP_CONV_PY}
	$(call print_target)
	@mkdir -p $(dir $@)
	@${MMAP_CONV_PY} --type ld $< $@

ifeq ($(wildcard ${BOARD_MMAP_PATH}),)
memory-map:
else
memory-map: ${CVI_BOARD_MEMMAP_H_PATH} ${CVI_BOARD_MEMMAP_CONF_PATH} ${CVI_BOARD_MEMMAP_LD_PATH}
endif

该脚本会自动生成 cvi_board_memmap.hcvi_board_memmap.confcvi_board_memmap.ld 三个文件。

然后依赖 u-boot-dts

Makefile 复制代码
u-boot-dts:
	$(call print_target)
ifeq ($(UBOOT_SRC), u-boot-2021.10)
# U-boot doesn't has arch/arm64
ifeq ($(ARCH), arm64)
	${Q}find ${BUILD_PATH}/boards/${CHIP_ARCH_L} \
		\( -path "*linux/*.dts*" -o -path "*dts_${ARCH}/*.dts*" \) \
		-exec cp {} ${UBOOT_PATH}/arch/arm/dts/ \;
	${Q}find ${DTS_DEFATUL_PATHS} -name *.dts* -exec cp {} ${UBOOT_PATH}/arch/arm/dts/ \;
else
	${Q}find ${BUILD_PATH}/boards/${CHIP_ARCH_L} \
		\( -path "*linux/*.dts*" -o -path "*dts_${ARCH}/*.dts*" \) \
		-exec cp {} ${UBOOT_PATH}/arch/${ARCH}/dts/ \;
	${Q}find ${DTS_DEFATUL_PATHS} -name *.dts* -exec cp {} ${UBOOT_PATH}/arch/${ARCH}/dts/ \;
endif
endif

最终执行的命令为:

shell 复制代码
find sophpi/build/boards/cv181x \
	\( -path "*linux/*.dts*" -o -path "*dts_riscv/*.dts*" \) \
	-exec cp {} sophpi/u-boot-2021.10/arch/riscv/dts/ \;
find sophpi/build/boards/default/dts/cv181x sophpi/build/boards/default/dts/cv181x_riscv -name *.dts* -exec cp {} sophpi/u-boot-2021.10/arch/riscv/dts/ \;

sophpi/u-boot-2021.10/arch/riscv/dts 目录下执行 tree 命令,查看相关设备树文件。我们理论上用的是 sg2002 相关的 sg2002_wevb_riscv64_sd.dts 这个文件。

shell 复制代码
$ tree
.
├── ae350_32.dts
├── ae350_64.dts
├── ae350-u-boot.dtsi
├── binman.dtsi
├── cv1810c_wdmb_0006a_spinor.dts
├── cv1810c_wevb_0006a_spinand.dts
├── cv1810c_wevb_0006a_spinor.dts
├── cv1810h_wevb_0007a_spinor.dts
├── cv1811c_wdmb_0006a_spinor.dts
├── cv1811c_wevb_0006a_emmc.dts
├── cv1811c_wevb_0006a_spinand.dts
├── cv1811c_wevb_0006a_spinor.dts
├── cv1811h_wevb_0007a_emmc.dts
├── cv1811h_wevb_0007a_spinand.dts
├── cv1811h_wevb_0007a_spinor.dts
├── cv1812cp_sophpi_duo_sd.dts
├── cv1812cp_wevb_0006a_emmc.dts
├── cv1812cp_wevb_0006a_spinand.dts
├── cv1812cp_wevb_0006a_spinor.dts
├── cv1812h_wevb_0007a_emmc.dts
├── cv1812h_wevb_0007a_emmc_huashan.dts
├── cv1812h_wevb_0007a_spinand.dts
├── cv1812h_wevb_0007a_spinand_huashan.dts
├── cv1812h_wevb_0007a_spinor.dts
├── cv1812h_wevb_0007a_spinor_huashan.dts
├── cv1813h_wevb_0007a_emmc.dts
├── cv1813h_wevb_0007a_spinand.dts
├── cv1813h_wevb_0007a_spinor.dts
├── cv181x_asic_bga.dtsi
├── cv181x_asic_emmc.dtsi
├── cv181x_asic_qfn.dtsi
├── cv181x_asic_sd.dtsi
├── cv181x_asic_spinand.dtsi
├── cv181x_asic_spinor.dtsi
├── cv181x_base.dtsi
├── cv181x_base_riscv.dtsi
├── cv181x_default_memmap.dtsi
├── fu540-c000.dtsi
├── fu540-c000-u-boot.dtsi
├── fu540-hifive-unleashed-a00-ddr.dtsi
├── fu740-c000.dtsi
├── fu740-c000-u-boot.dtsi
├── fu740-hifive-unmatched-a00-ddr.dtsi
├── hifive-unleashed-a00.dts
├── hifive-unleashed-a00-u-boot.dtsi
├── hifive-unmatched-a00.dts
├── hifive-unmatched-a00-u-boot.dtsi
├── k210.dtsi
├── k210-maix-bit.dts
├── Makefile
├── microchip-mpfs-icicle-kit.dts
├── microchip-mpfs-icicle-kit-u-boot.dtsi
├── openpiton-riscv64.dts
├── qemu-virt.dts
├── sg2000_wevb_riscv64_sd.dts
└── sg2002_wevb_riscv64_sd.dts
  • 执行到这里,才真正开始编译 u-boot,主要是以下几行命令
shell 复制代码
	${Q}$(MAKE) -j${NPROC} -C ${UBOOT_PATH} olddefconfig
	${Q}$(MAKE) -j${NPROC} -C ${UBOOT_PATH} all
	${Q}cat ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot.bin > ${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot-raw.bin

最终产物在 sophpi/u-boot-2021.10/build/sg2002_wevb_riscv64_sd/u-boot-raw.bin

4、opensbi 编译

有了 u-boot 之后,开始编译 opensbi

为了兼容不同的运行需求,OpenSBI 支持三种类型的 Firmware,分别为:

  • dynamic:从上一级 Boot Stage 获取下一级 Boot Stage 的入口信息,以 struct fw_dynamic_info 结构体通过 a2 寄存器传递。
  • jump:假设下一级 Boot Stage Entry 为固定地址,直接跳转过去运行。
  • payload:在 jump 的基础上,直接打包进来下一级 Boot Stage 的 Binary。下一级通常是 Bootloader 或 OS,比如 U-Boot,Linux。

相关编译脚本位置: build/scripts/fip_v2.mk

Makefile 复制代码
opensbi: export CROSS_COMPILE=$(CONFIG_CROSS_COMPILE_SDK)
opensbi: u-boot-build
	$(call print_target)
	${Q}$(MAKE) -j${NPROC} -C ${OPENSBI_PATH} PLATFORM=generic \
	    FW_PAYLOAD_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/u-boot-raw.bin \
	    FW_FDT_PATH=${UBOOT_PATH}/${UBOOT_OUTPUT_FOLDER}/arch/riscv/dts/${CHIP}_${BOARD}.dtb

根据以上脚本获知,sophpi 上采用的是 payload 模式,payload 文件为 u-boot-raw.bin,就是上面我们编译出来的文件。

FW_FDT_PATH 为设备树路径,为 sophpi/u-boot-2021.10/build/sg2002_wevb_riscv64_sd/arch/riscv/dts/sg2002_wevb_riscv64_sd.dtb

编译完成后, 产物在 sophpi/opensbi/build/platform/generic/firmware 目录下。

5、fsbl编译

编译完了u-boot 和 opensbi,继续往回推,来到了 fsbl-build。(中间还有一个 rtos 编译,暂时略过先)。

FSBL 是 First Stage Boot Loader 的缩写。

Makefile 复制代码
fsbl-build: u-boot-build memory-map
	$(call print_target)
	${Q}mkdir -p ${FSBL_PATH}/build
	${Q}ln -snrf -t ${FSBL_PATH}/build ${CVI_BOARD_MEMMAP_H_PATH}
	${Q}$(MAKE) -j${NPROC} -C ${FSBL_PATH} O=${FSBL_OUTPUT_PATH}
	${Q}cp ${FSBL_OUTPUT_PATH}/boot0 ${OUTPUT_DIR}/

最终执行的编译命令为 :

shell 复制代码
make -j8 -C sophpi/fsbl O=sophpi/fsbl/build/sg2002_wevb_riscv64_sd BLCP_2ND_PATH=sophpi/freertos/cvitek/install/bin/cvirtos.bin \
	LOADER_2ND_PATH=sophpi/u-boot-2021.10/build/sg2002_wevb_riscv64_sd/u-boot-raw.bin

主要来看看 fsbl 编译流程,从 fsbl/Makefile 文件开始

Makefile 复制代码
all: fip bl2 blmacros

include ${MAKE_HELPERS_DIRECTORY}fip.mk

依次找到 fip 在 fsbl/make_helpers/fip.mk 文件

Makefile 复制代码
gen-chip-conf:
	$(print_target)
	${Q}mkdir -p '${BUILD_PLAT}'
	${Q}./plat/${CHIP_ARCH}/chip_conf.py ${CHIP_CONF_PATH}

macro_to_env = ${NM} '${BLMACROS_ELF}' | awk '/DEF_${1}/ { rc = 1; print "${1}=0x" $$1 } END { exit !rc }' >> ${BUILD_PLAT}/blmacros.env

blmacros-env: blmacros
	$(print_target)
	${Q}> ${BUILD_PLAT}/blmacros.env  # clear .env first
	${Q}$(call macro_to_env,MONITOR_RUNADDR)
	${Q}$(call macro_to_env,BLCP_2ND_RUNADDR)
ifeq (${BUILD_BOOT0},y)
$(eval $(call add_define,ENABLE_BOOT0))
fip: fip_boot0
else
fip: fip-all
endif

fip-dep: bl2 blmacros-env gen-chip-conf


fip_boot0: fip-dep
	$(print_target)
	${Q}echo "  [GEN] boot0"
	${Q}. ${BUILD_PLAT}/blmacros.env && \
	${FIPTOOL} -v genfip \
		'${BUILD_PLAT}/boot0' \
		--MONITOR_RUNADDR="$${MONITOR_RUNADDR}" \
		--BLCP_2ND_RUNADDR="$${BLCP_2ND_RUNADDR}" \
		--CHIP_CONF='${CHIP_CONF_PATH}' \
		--NOR_INFO='${NOR_INFO}' \
		--NAND_INFO='${NAND_INFO}'\
		--BL2='${BUILD_PLAT}/bl2.bin' \
		--BLCP_IMG_RUNADDR=${BLCP_IMG_RUNADDR} \
		--BLCP_PARAM_LOADADDR=${BLCP_PARAM_LOADADDR} \
		--BLCP=${BLCP_PATH} \
		--DDR_PARAM='${DDR_PARAM_TEST_PATH}'
	${Q}echo "  [LS] " $$(ls -l '${BUILD_PLAT}/boot0')
	${Q}cp ${BUILD_PLAT}/boot0 ${OUTPUT_DIR}

fip-simple: fip-dep
	$(print_target)
	${Q}echo "  [GEN] fip.bin"
	${Q}${FIPTOOL} -v genfip \
		'${BUILD_PLAT}/fip.bin' \
		--CHIP_CONF='${CHIP_CONF_PATH}' \
		--NOR_INFO='${NOR_INFO}' \
		--NAND_INFO='${NAND_INFO}'\
		--BL2='${BUILD_PLAT}/bl2.bin'
	${Q}echo "  [LS] " $$(ls -l '${BUILD_PLAT}/fip.bin')

通过一堆复杂的操作。。。生成了一个 bl2.bin 文件。(正常情况下我们开发者也不会去修改这个玩意。。。)

主要关心 fip-all 这个操作,用于生成 fip.bin 文件。

6、fip.bin文件合成

查阅官方有限的资料,获知 fip.bin 为内含 bootloader+uboot 的文件

为啥要这么干?官方的文档里面是这么说的:

由于原生 u-boot 编译出 u-boot.bin 无法直接刻录到 FLASH 中。我们采取 ARM Trusted Firmware Design 中的 Firmware Image Package (FIP) 方式,将 uboot.bin 封装在 FIP.bin 里面。

https://doc.sophgo.com/cvitek-develop-docs/master/docs_latest_release/CV180x_CV181x/zh/01.software/BSP/U-boot_Porting_Development_Guide/build/html/3_U-boot_Transplant.html

通过 chatgpt 查询 fip 后得知:

FIP(Flexible Image Processor)文件是指存储在ARM架构的处理器设备上的固件映像文件。它主要用于引导和配置设备。FIP文件通常包含以下内容:

  1. Trusted Firmware-A(TF-A):TF-A 是 ARM 架构设备上的一个开源的可信固件。它负责设备的引导、安全检查和启动加载程序的执行。
  2. U-Boot:U-Boot 是一个开源的引导加载程序(bootloader),用于启动设备。它提供了引导设备的功能,并提供了配置和管理设备硬件的选项。
  3. ARM Trusted Firmware(ATF):ATF 是一组用于安全引导的固件,用于验证和启动设备上的其他软件组件(如操作系统)。
  4. 其他组件:FIP 文件还可以包含其他固件组件,如设备树(Device Tree)文件、TEE 固件(如 OP-TEE)、加密密钥和配置参数等。
    FIP 文件在 ARM 架构设备上很常见,它们提供了引导和初始化处理器的必要组件。这些文件由设备制造商提供,并根据特定设备、硬件配置和需求进行定制。

按照前面的分析,fip.bin 在 fsbl 最后阶段合成

Makefile 复制代码
fip-all: fip-dep
	$(print_target)
	${Q}echo "  [GEN] fip.bin"
	${Q}. ${BUILD_PLAT}/blmacros.env && \
	${FIPTOOL} -v genfip \
		'${BUILD_PLAT}/fip.bin' \
		--MONITOR_RUNADDR="$${MONITOR_RUNADDR}" \
		--BLCP_2ND_RUNADDR="$${BLCP_2ND_RUNADDR}" \
		--CHIP_CONF='${CHIP_CONF_PATH}' \
		--NOR_INFO='${NOR_INFO}' \
		--NAND_INFO='${NAND_INFO}'\
		--BL2='${BUILD_PLAT}/bl2.bin' \
		--BLCP_IMG_RUNADDR=${BLCP_IMG_RUNADDR} \
		--BLCP_PARAM_LOADADDR=${BLCP_PARAM_LOADADDR} \
		--BLCP=${BLCP_PATH} \
		--DDR_PARAM='${DDR_PARAM_TEST_PATH}' \
		--BLCP_2ND='${BLCP_2ND_PATH}' \
		--MONITOR='${MONITOR_PATH}' \
		--LOADER_2ND='${LOADER_2ND_PATH}' \
		--compress='${FIP_COMPRESS}'
	${Q}echo "  [LS] " $$(ls -l '${BUILD_PLAT}/fip.bin')

转换成实际执行命令为:

shell 复制代码
. sophpi/fsbl/build/sg2002_wevb_riscv64_sd/blmacros.env && \
./plat/cv180x/fiptool.py -v genfip \
	'sophpi/fsbl/build/sg2002_wevb_riscv64_sd/fip.bin' \
	--MONITOR_RUNADDR="${MONITOR_RUNADDR}" \
	--BLCP_2ND_RUNADDR="${BLCP_2ND_RUNADDR}" \
	--CHIP_CONF='sophpi/fsbl/build/sg2002_wevb_riscv64_sd/chip_conf.bin' \
	--NOR_INFO='FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF' \
	--NAND_INFO='00000000'\
	--BL2='sophpi/fsbl/build/sg2002_wevb_riscv64_sd/bl2.bin' \
	--BLCP_IMG_RUNADDR=0x05200200 \
	--BLCP_PARAM_LOADADDR=0 \
	--BLCP=test/empty.bin \
	--DDR_PARAM='test/cv181x/ddr_param.bin' \
	--BLCP_2ND='sophpi/freertos/cvitek/install/bin/cvirtos.bin' \
	--MONITOR='../opensbi/build/platform/generic/firmware/fw_dynamic.bin' \
	--LOADER_2ND='sophpi/u-boot-2021.10/build/sg2002_wevb_riscv64_sd/u-boot-raw.bin' \
	--compress='lzma'
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