Re: [PATCH] mips: Realtek RTL: select NO_EXCEPT_FILL
From: Thomas Bogendoerfer
Date: Sun Feb 19 2023 - 04:03:09 EST
On Fri, Feb 17, 2023 at 08:27:05PM +0100, Olliver Schinagl wrote:
> It is the Realtek series of SoC, specifically in my case, the RTL9302b,
> which doesn't have a PCI peripherial, at all :) Nor configured in the
> devicetree, but of course generic_mips_kernel enables the drivers, which
> should be noop. I don't see anything related to PCI during boot.
>
> Having said that, the RTL930x series take their heritage from the RTL819x
> (and probably older) wifi SoC series from realtek, which did contain a PCIe
> peripherial, as that is where the (external) wifi chip was connected too.
I see, and you want to use the already existing wifi driver ?
> > Do you have a programmers manual for it,
> > which contains details about the PCI bridge ?
>
> If only. There are some (leaked) datasheets, that do contain the PCI
> registers, mostly (obviously) the rtl819x datasheets. https://github.com/libc0607/Realtek_switch_hacking/blob/files/REALTEK-RTL8196E.pdf
> is one such example that contains the PCIe registers.
that's just the PCIe PHY part, but not the localbus<->PCIe bridge
part. But if the wifi part of ypur SOC is directly connected to
the localbus, having the some PCI register won't help anyway.
I am afraid you need to go the route via extra Kconfig section.
Thomas.
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