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char/cadence_uart: Use the TX fifo for transmission
Populate the TxFIFO with the Tx data before sending. Prepares support for proper Tx flow control implementation. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Message-id: bdf7f8af2ef02839bea18665701bc2612f7baa6f.1388626249.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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