[FS#3471] Mikrotik RB911-5Hn propper nand detection failed

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Mon Nov 30 11:49:52 EST 2020


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FS#3471 - Mikrotik RB911-5Hn propper nand detection failed
User who did this - rogerpueyo (rogerpueyo)

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Hi,

OK, now I see.

//tftp booting 18.06.9 image on my rb911-nand board, provides /sys/firmware/routerboot/ext_wlan_data, loads ath9k & wlan0 is visible & operational//

This means 18.06.9 works just fine. Great.

//tftp booting 19.07.4 image gets into FAILSAFE MODE, /sys/firmware/mikrotik is empty & ath9k loads but wlan0 is not visible or operational & no ath/ath9k dmesg is reported//

Different things here. The FAILSAFE mode thing should not happen anymore when 19.07.5 is finally published, as whatever was causing this, it seems that has been fixed after 19.07.4.

The /sys/firmware/mikrotik folder is **only available with ath79**, because it includes a driver that parses the device info to that folder. You are booting an ar71xx image here, which does not have the driver, so don't expect to find anything there! :)

In any case, in FAILSAFE mode there's no WiFi: the normal boot process is interrupted before the ath9k driver is loaded. This is normal.

//tftp booting the 19-snapshot image you sent me, /sys/firmware/mikrotik is empty while ath9k loads & wlan0 is visible & operational //

Cool. This means that, whenever 19.07.5 is published, the ar71xx image should work completely again (same as 18.06.9).

//my question is how come, the older 18.x trunk offers the wifi calibration data while the newer 19.x does not //

Both do, and both do it the same way, but you are looking at different places for the same calibration data.

// also, would it be possible to sent me your 19.x image with the kernel option "CONFIG_IKCONFIG_PROC=y" 

Please find them at https://we.tl/t-KXIWYSacjQ

Cheers!
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https://bugs.openwrt.org/index.php?do=details&task_id=3471#comment9080

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