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+ Make 8250 serial driver more generic
+ Still TODO: write a tutorial on how to boot on the visionfive2
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+ Not bootable quite yet. Among other things, I couldn't
get the current starfive u-boot fork to boot, so
try adding support for booting with precompiled u-boot
via the `go` command. Initial testing with qemu shows that
this should be possible, and if it works, might be useful
in the (far) future with other slightly janky SBCs.
Also, NS16550 is 8250-based, and I'm really only using the base
8250, so rename and add visionfive 2 uart to list of compatibles.
Visionfive 2 is still completely untested.
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+ Both kind of go hand in hand, made sense to do both at the same time.
Some parts feel slightly hacky, the loader works by placing everything
on the stack and avoiding global values. Still, seems to work?
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+ Skip cow for now, maybe implement later but try to keep things simple.
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The output is close enough, and I like that uncrustify is a third-party
tool, so people can install a single tool for formatting instead of
having to lug around a whole toolchain. I fully expect to have to add
settings to uncrustify.conf, but let's see how this goes.
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+ Next step, start documenting contents of each file.
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+ Probably completely unnecessary stylistic thing, but I'll roll with it
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+ Added automated categories to debugging, bug/info/warn/error etc. Now
I should just try to use them here and there :D
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+ Mainly just moving stuff out or arch/riscv/ that should be handled in
common/
+ Prepared separate process stack/call stack for server callbacks, rest
to be implemeted soon ish
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+ Lots of bughunting to do, probably lots of off-by-one and so on
errors, and I make a lot of naive and possibly dangerous assumptions.
But cool start nonetheless. Should also come up with some method of
exchanging data between the init and actual kernel, probably some struct
of some sort. TODO
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+ I don't fully trust my memory management system yet, so should
probably check the memory regions it gives.
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+ Will probably still need a fair bit of tweakind and documentation
improvements, but seems to work outside of the kernel. Also no valgrind
errors, which is quite promising I guess.
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