[OpenWrt-Devel] Wifi on ZBT-WE1326 broken after commit 5f7396ebef09

[Kristian Evensen]

Hello,

On Tue, May 29, 2018 at 5:24 PM, Kristian Evensen
<kristian.evensen at gmail.com> wrote:
> Carrying a local revert of the commit in question is always a
> possibility (and does not seem to have any unintentional
> side-effects), but I would rather try to fix the problem properly.
> Does anyone have any suggestions on where to look?

Banging my head in the wall for some hours seems to have resulted in a solution.

The default PCIe interrupt mapping in mt7621.dtsi is wrong for WE1326.
After taking a look at which IRQs were set up before commit
5f7396ebef09, I noticed that the IRQs in mt7621.dtsi. After adding the
following to the pcie-node of ZBT-WE1326.dts, wifi is working fine:

interrupt-map = <0x10000 0 0 1 &gic GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>,
                         <0x20000 0 0 1 &gic GIC_SHARED 25 IRQ_TYPE_LEVEL_HIGH>;

I will prepare and submit a patch.

BR,
Kristian

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