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https://github.com/brain-hackers/u-boot-brain
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16 lines
774 B
Plaintext
16 lines
774 B
Plaintext
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MULTI DTB FIT
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The purpose of this feature is to enable u-boot to select its DTB from a FIT
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appended at the end of the binary.
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Usually the DTB is selected by the SPL and passed down to U-Boot. But some
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platforms don't use the SPL. In this case MULTI_DTB_FIT can used to provide
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U-Boot with a choice of DTBs.
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The relevant DTBs are packed into a FIT (list provided by CONFIG__OF_LIST). The
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FIT is automatically generated at the end of the compilation and appended to
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u-boot.bin so that U-Boot can locate it and select the correct DTB from inside
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the FIT.
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The selection is done using board_fit_config_name_match() (same as what the SPL
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uses to select the DTB for U-Boot). The selection happens during fdtdec_setup()
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which is called during before relocation by board_init_f().
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