[FS#1242] SATA broken on kernel 4.9 on mt7621

[LEDE Bugs]

The following task has a new comment added:

FS#1242 - SATA broken on kernel 4.9 on mt7621
User who did this - neheb (neheb)

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I'm using 4.4 with trunk. Just copy patches-4.4 and config-4.4 from 17.01 and change the Makefile to use 4.4.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1242#comment4153