[PATCH 1/3] ramips: hlk-7621a-evb: remove WiFi support
reinhard at m4x.de
Wed Apr 20 09:57:56 PDT 2022
Am 17.04.2022 15:36, schrieb Hauke Mehrtens:
> Is there a Mediatek eeprom at this location?
I would guess so, by comparing the content with a device that does have
> If there is normally real eeprom data then we should probably us it if
> someone put the correct card in.
Please correct me if I am wrong, but I think a removable mPCIe card is
always required to have its own EEPROM, which should be more accurate
for that particular card than anything that happens to be on the flash
of the SoC module it happens to get connected to.
I don't know what information is exactly contained in that (emulated)
EEPROM, but I would expect stuff that depends on the circuitry around
the WiFi chip, such as antenna configuration, LED existance and
polarity, but it might even contain HF calibration data that is specific
to a particular copy of the chip.
I guess that this EEPROM data is only there by accident, because some
SDK or BSP from MediaTek happens to have it there by default, configured
for some common WiFi chip, and the module manufacturer did not bother to
disable it, although it is not really needed.
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