[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 - easyteacher (easyteacher)

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@neheb Does disabling CONFIG_HIGHMEM really work? Have you tested it?
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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#comment4217