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31 lines
938 B
Markdown
31 lines
938 B
Markdown
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K210 Boot ROM re'ing
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====================
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This directory contains annotations (comments, function names, some
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cross-referencing) for the K210 boot process. The [radare2](https://rada.re/r/)
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reverse-engineering tool was used.
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Where there were clear matches I've tried to use function names from the SDK. When not,
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I've tried to think of an appropriate name. Some functions are unknown and still named
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after the broad category `fcnXXXXXXXX._flash`, `fcnXXXXXXXX._otp`.
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You need a dump of the K210 ROM (address 0x88000000..0x8801ffff) as `kendryte_rom.dat`
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in the current directory.
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To use the radare2 projects the straightforward way is to link them to the user projects
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directory. I had no luck overriding `R2_RDATAHOME`.
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```bash
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ln -sf $PWD/k210_* $HOME/.local/share/radare2/projects
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```
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```bash
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stat kendryte_rom.dat # must be 131072 bytes
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r2 -p k210_rom
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```
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```bash
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stat kendryte_otp.dat # must be 16384 bytes
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r2 -p k210_otp
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```
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