U-Boot is an open source project on the sourceforge website. It is a popular and powerful BootLoader that supports multiple architectures. After describing the U-Boot startup process, this article analyzes the key points of its porting process on S3C44B0. Finally, the porting of the network card driver is implemented, making U-Boot more powerful and more convenient to use, and also making the design of the embedded system network interface more flexible. Keywords: BootLoader; U-Boot porting; S3C44B0Bootloader provides the embedded operating system with on-board hardware resource information, and further loads and boots the embedded operating system. Since the function of the Bootloader is directly related to the CPU and microprocessor system, different CPU systems will require different Bootloaders. For two different development boards, even if they use the same CPU architecture, if you want the Bootloader program running on one of them to run on the other board, you usually need to modify the Bootloader source program. This shows that the porting of the Bootloader is particularly important.
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