[atheros] [mips] Add the GPIO driver (back) to the TL-WDR3600/TL-WDR4300 kernel.
So it turns out that sometime in the past I removed the GPIO bits here and was going to move it into a module in order to save a little space. However, it turns out that was a mistake on this particular AP - it uses a pair of GPIO lines to control the two receive LNAs on the 2GHz radio and without them enabled the radio is a LOT DEAF. With this re-introduced (and some replacement userland tools to save space, *cough* cpio/libarchive) I can actually use these chipsets again as a 2G station. Without the LNA the AP was seeing a per-radio RSSI upstairs here of around 3-5dB, with the LNA on it's around 15dB, more than enough to actually use wifi upstairs and also in line with the other Atheros / Intel devices I have up here. Big oopsie to Adrian. Big, big oopsie.
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=355829
@ -50,5 +50,12 @@ options AR71XX_ATH_EEPROM
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device firmware # Used by the above
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options ATH_EEPROM_FIRMWARE
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options ATH_DEBUG_ALQ
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# Boot off of the rootfs, as defined in the geom_map setup.
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options ROOTDEVNAME=\"ufs:map/rootfs.uzip\"
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# This is required for the 2GHz LNAs on the AR9340 SoC.
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# Without this the 2GHz radio is Quite Deaf.
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device gpio
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device gpioled
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