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f5b3cd1539
Without this patch, when using rev 3 of the Atheros AR9344 SoC, the gigabit switch (AR8327) does not work or works very erratically. This is a re-spin of http://patchwork.ozlabs.org/patch/419857/ with a different PLL value, according to the feedback from several users (including myself) as shown here: https://openwrt.org/toh/mikrotik/rb2011uias#tracking_reported_experience_with_suggested_patch_for_the_5_gige_ports Performance is acceptable: testing L3 forwarding without NAT yields a performance of 370 Mbit/s (iperf3 TCP) and 41 Kpps (iperf3 UDP with 64 bytes payload). Both tests show that 100% of CPU time is spent on softirq. A similar fix for a different device (RB2011) was added in e457d22261 ("Make GBit switch work on RB2011"). Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org> (cherry picked from commit 247043c968d22c193055a97a9cdf5baef4aaf96d)