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What equipment used only in the bootloader initialization, not in the kernel?

Time:09-25

Consult everybody, RT, being asked

CodePudding user response:

I think it's DDR controller sata controller

CodePudding user response:

Bootloader is a bare minimum system, then ram, flash drive, according to their own needs to add a peripheral drive (optional, such as, uart do input/output interface, pin control lights, so drive)

CodePudding user response:

Bootloader generally is the guidance system, help you to load the operating system, or do something only a boot can do (for example, bare-metal update user application), as for the actual initialization, suggest you initialization before the while in the main function, and not every Settings can run to, but electricity to do initialization

CodePudding user response:

Bl is mainly guide with inside, CPU flash memory and the necessary input and output devices to initialize, other basic need not,

CodePudding user response:

Bootloader is a boot program that runs through withdrew from the river's lake, but he will be initialized memory, because want to pour the kernel into memory, without the kernel initialization again, should require other peripherals

CodePudding user response:

Bootloader is qualcomm this chip factory design, the purpose is to guide the kernel, the kernel belongs to the plant design, will own runtime environment for initialization,
What specific initialization, not clear, have to look at the code, but some part of the bootloader as the firmware code chip factory, we can't see in the burn wrote ROM

CodePudding user response:

The question is not rigorous,
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