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alcob-tio53>
My beagley-ai always red led, maybe bad flashing
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brook_>
how is the first unused section of the eMMC organized? it seems to have u-boot, but i'm not sure if it has a filesystem.
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jakllsch>
there's probably a list of LBAs the mask ROM boot loader will look for a next stage on eMMC in the TRM
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brook_>
so you are guessing that there are specific offsets from the beginning of the disk for MLO and u-boot.img?
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brook_>
instead of a filesystem?
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jakllsch>
in document SPRUH73Q section 26.1.8.5
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jakllsch>
26.1.8.5.5 for raw mode, and 26.1.8.5.6 for looking for "MLO" on FAT
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jakllsch>
it looks for an boot image in raw mode at 0, 128KiB, 256KiB, and 384KiB, and the image can be 128KiB or more in size
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brook_>
thanks. I'm seeing that, too. I'm not seeing how it knows "raw" v. "FAT" mode, though. I guess it looks for an MBR?
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brook_>
or maybe is just checks those offsets and if nothing found assumes FAT mode?
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jakllsch>
probably the latter
<
brook_>
OK, things to explore. thanks.
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zmatt>
jakllsch: the image must be 109K or less (excluding the header)
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zmatt>
brook_: yeah it looks for a raw mmc header at those offsets and if none found falls back to FAT
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