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如何深入理解并利用UBoot源码进行嵌入式系统开发?
- 行业动态
- 2024-09-12
- 1
UBoot(Universal Boot Loader)是一个开源的引导加载程序,用于多种计算机体系结构。它支持PowerPC、ARM、x86、MIPS等处理器,并提供丰富的外设驱动和网络协议栈。UBoot源码是学习嵌入式系统开发和引导过程的重要资源。
UBoot(Universal Boot Loader)是一个开源的引导加载程序,用于嵌入式系统中,它负责初始化硬件、加载内核映像以及提供命令行界面供用户与系统进行交互,以下是一个简单的UBoot源码示例:
#include <common.h> #include <command.h> #include <malloc.h> #include <stdio_dev.h> #include <timestamp.h> #include <version.h> #include <net.h> #ifdef CONFIG_CMD_NET #include <bootp.h> #endif #ifdef CONFIG_CMD_NFS #include <nfs.h> #endif #ifdef CONFIG_CMD_DHCP #include <dhcp.h> #endif #ifdef CONFIG_CMD_MII #include <miiphy.h> #endif #ifdef CONFIG_CMD_PING #include <ping.h> #endif #ifdef CONFIG_CMD_DATE #include <date.h> #endif #ifdef CONFIG_CMD_ELF #include <libelf.h> #endif #ifdef CONFIG_CMD_BDI #include <bdi.h> #endif #ifdef CONFIG_CMD_MEMORY #include <memory.h> #endif #ifdef CONFIG_CMD_RUN #include <run.h> #endif #ifdef CONFIG_CMD_BOOTM #include <bootm.h> #endif #ifdef CONFIG_CMD_IMMAP #include <immap.h> #endif #ifdef CONFIG_CMD_SOURCE #include <source.h> #endif #ifdef CONFIG_CMD_CACHE #include <cache.h> #endif #ifdef CONFIG_CMD_GPIO #include <gpio.h> #endif #ifdef CONFIG_CMD_MMC #include <mmc.h> #endif #ifdef CONFIG_CMD_ONENAND #include <onenand.h> #endif #ifdef CONFIG_CMD_MTDPARTS #include <mtdparts.h> #endif #ifdef CONFIG_CMD_EXT2 #include <ext2fs.h> #endif #ifdef CONFIG_CMD_FAT #include <fat.h> #endif #ifdef CONFIG_CMD_USB #include <usb.h> #endif #ifdef CONFIG_CMD_SF #include <spi_flash.h> #endif #ifdef CONFIG_CMD_EEPROM #include <eeprom.h> #endif #ifdef CONFIG_CMD_I2C #include <i2c.h> #endif #ifdef CONFIG_CMD_SPI #include <spi.h> #endif #ifdef CONFIG_CMD_REGINFO #include <reginfo.h> #endif #ifdef CONFIG_CMD_MMC_SPI #include <mmc_spi.h> #endif #ifdef CONFIG_CMD_MMC_SETUP #include <mmc_setup.h> #endif #ifdef CONFIG_CMD_MMC_RESET #include <mmc_reset.h> #endif #ifdef CONFIG_CMD_MMC_TEST #include <mmc_test.h> #endif #ifdef CONFIG_CMD_MMC_READ #include <mmc_read.h> #endif #ifdef CONFIG_CMD_MMC_WRITE #include <mmc_write.h> #endif #ifdef CONFIG_CMD_MMC_ERASE #include <mmc_erase.h> #endif #ifdef CONFIG_CMD_MMC_HWPARM #include <mmc_hwparam.h> #endif #ifdef CONFIG_CMD_MMC_SWITCH #include <mmc_switch.h> #endif #ifdef CONFIG_CMD_MMC_PARTS #include <mmc_parts.h> #endif #ifdef CONFIG_CMD_MMC_DUMP #include <mmc_dump.h> #endif #ifdef CONFIG_CMD_MMC_UNLOCK #include <mmc_unlock.h> #endif #ifdef CONFIG_CMD_MMC_LOCK #include <mmc_lock.h> #endif #ifdef CONFIG_CMD_MMC_FORMAT #include <mmc_format.h> #endif #ifdef CONFIG_CMD_MMC_RENAME #include <mmc_rename.h> #endif #ifdef CONFIG_CMD_MMC_SETLABEL #include <mmc_setlabel.h> #endif #ifdef CONFIG_CMD_MMC_IDENTIFY #include <mmc_identify.h> #endif #ifdef CONFIG_CMD_MMC_SETUUID #include <mmc_setuuid.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTTYPE #include <mmc_setparttype.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTCOMPAT #include <mmc_setpartcompat.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTATTR #include <mmc_setpartattr.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTFLAGS #include <mmc_setpartflags.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTSIZE #include <mmc_setpartsize.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTOFFSET #include <mmc_setpartoffset.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTNUMBER #include <mmc_setpartnumber.h> #endif #ifdef CONFIG_CMD_MMC_SETPARTNAME #include <mmc_setpartname.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTUUID #include <mmc_getpartuuid.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTTYPE #include <mmc_getparttype.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTCOMPAT #include <mmc_getpartcompat.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTATTR #include <mmc_getpartattr.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTFLAGS #include <mmc_getpartflags.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTSIZE #include <mmc_getpartsize.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTOFFSET #include <mmc_getpartoffset.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTNUMBER #include <mmc_getpartnumber.h> #endif #ifdef CONFIG_CMD_MMC_GETPARTNAME #include <mmc_getpartname.h> #endif #ifdef CONFIG_CMD_MMC_LISTPARTS #include <mmc_listparts.h> #endif #ifdef CONFIG_CMD_MMC_LISTTYPES #include <mmc_listtypes.h> #endif #ifdef CONFIG_CMD_MMC_LISTUUIDS #include <mmc_listuuids.h> #endif #ifdef CONFIG_CMD_MMC_LISTCOMPAT #include <mmc_listcompat.h> #endif #ifdef CONFIG_CMD_MMC_LISTATTRS #include <mmc_listattrs.h> #endif #ifdef CONFIG_CMD_MMC_LISTFLAGS #include <mmc_listflags.h> #endif #ifdef CONFIG_CMD_MMC_LISTSIZES #include <mmc_listsizes.h> #endif #ifdef CONFIG_CMD_MMC_LISTOFFSETS #include <mmc_listoffsets.h> #endif #ifdef CONFIG_CMD_MMC_LISTNUMBERS #include <mmc_listnumbers.h> #endif #ifdef CONFIG_CMD_MMC_LISTNAMES #include <mmc_listnames.h> #endif
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