Revert "serial: ns16550: fix debug uart putc called before init"
This reverts commit 6f57c344 since it does not seem to work at least on rk3399. The Rockchip Technical Reference Manual (TRM) for the rk3399 says the baud rate prescaler register is readable only when USR[0] is zero. Since this bit is defined as "reserved" in the socfpga cylcone5 TRM, let's rather drop this than making the ns16550 debug uart more platform specific. Reported-by: NRoosen Henri <Henri.Roosen@ginzinger.com> Signed-off-by: NSimon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Reviewed-by: NPhilipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com
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