[PATCH] ramips: mt7621: fix R6850 EEPROM offsets

[Stijn Segers]

Hi Adrian,

Op vrijdag 12 maart 2021 om 22u01 schreef Adrian Schmutzler 
<mail at adrianschmutzler.de>:
> Hi,
> 
>>  -----Original Message-----
>>  From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org]
>>  On Behalf Of Stijn Segers
>>  Sent: Freitag, 12. März 2021 12:45
>>  To: openwrt-devel at lists.openwrt.org
>>  Cc: mail at david-bauer.net; Bernt Ø . Thorvaldsen
>>  <bernt.thorvaldsen at gmail.com>
>>  Subject: [PATCH] ramips: mt7621: fix R6850 EEPROM offsets
>> 
>>  The Netgear R6850 has its EEPROM data sitting at 0x28000 for the 5 
>> GHz radio
>>  and at 0x20000 for the 2,4 GHz radio. See forum topic for a hex 
>> dump [1].
> 
> The commit title/message does not really fit the code changes here.
> You are adding full pcieX block, not just swapping EEPROM data. 
> Please update to make clear what's going on.
> 

I was advised to override the whole block on IRC, rather than just 
overriding the &wifi block EEPROM property.
So just overriding that is enough?

Thanks

Stijn


> Best
> 
> Adrian
> 
>> 
>>  [1]  
>> https://forum.openwrt.org/t/netgear-r6850-very-low-transmit-power-
>>  on-5ghz/90984
>> 
>>  Signed-off-by: Stijn Segers <foss at volatilesystems.org>
>>  Tested-by: Bernt Ø. Thorvaldsen <bernt.thorvaldsen at gmail.com>
>>  ---
>>   .../linux/ramips/dts/mt7621_netgear_r6850.dts  | 18 
>> ++++++++++++++++++
>>   1 file changed, 18 insertions(+)
>> 
>>  diff --git a/target/linux/ramips/dts/mt7621_netgear_r6850.dts
>>  b/target/linux/ramips/dts/mt7621_netgear_r6850.dts
>>  index 78e9093216..313fecf936 100644
>>  --- a/target/linux/ramips/dts/mt7621_netgear_r6850.dts
>>  +++ b/target/linux/ramips/dts/mt7621_netgear_r6850.dts
>>  @@ -6,3 +6,21 @@
>>   	compatible = "netgear,r6850", "mediatek,mt7621-soc";
>>   	model = "Netgear R6850";
>>   };
>>  +
>>  +&pcie0 {
>>  +	wifi at 0,0 {
>>  +		compatible = "mediatek,mt76";
>>  +		reg = <0x0 0 0 0 0>;
>>  +		mediatek,mtd-eeprom = <&factory 0x28000>;
>>  +		ieee80211-freq-limit = <5000000 6000000>;
>>  +	};
>>  +};
>>  +
>>  +&pcie1 {
>>  +	wifi at 0,0 {
>>  +		compatible = "mediatek,mt76";
>>  +		reg = <0x0 0 0 0 0>;
>>  +		mediatek,mtd-eeprom = <&factory 0x20000>;
>>  +		ieee80211-freq-limit = <2400000 2500000>;
>>  +	};
>>  +};
>>  --
>>  2.30.1
>> 
>> 
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