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serial_bcm283x_mu: Fail loading if not muxed
authorAlexander Graf <agraf@suse.de>
Thu, 25 Jan 2018 11:05:48 +0000 (12:05 +0100)
committerTom Rini <trini@konsulko.com>
Sun, 28 Jan 2018 17:27:34 +0000 (12:27 -0500)
commit9dfeffe2f9f57e0ae254b1305f3fafb801a8b24a
treeca5c1473362ebcef7a48a3f4e2af551fc9252de1tree | snapshot
parentbceab8d569953dc21d263dc20b2d4c0c37f8b28ccommit | diff
serial_bcm283x_mu: Fail loading if not muxed

The bcm283x mini-uart is only really usable as U-Boot serial output
when it is muxed to the UART pins of the RPi pin header.

So fail probing in case it is not muxed correctly, as in that case
firmware did not initialize it properly either.

Signed-off-by: Alexander Graf <agraf@suse.de>
drivers/serial/serial_bcm283x_mu.c diff | blob | history
My U-Boot fork