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Enable pl011 UART FIFOs

Description

Enable pl011 UART FIFOs

The pl011 UART has a 16 entry Tx FIFO and a 16 entry Rx FIFO that
have not been used so far. Update the driver to enable the FIFOs
and use them in transmit and receive.

Reviewed by: andrew
Differential Revision: https://reviews.freebsd.org/D8819

Details

Provenance
jchandraAuthored on
Reviewer
andrew
Differential Revision
D8819: Enable FIFO on pl011 uart
Parents
rS314317: Include pcib_private.h for prototypes.
Branches
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Tags
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