Re: [U-Boot] Revert "serial: ns16550: fix debug uart putc called before init"

On Mon, Dec 03, 2018 at 09:55:33PM +0100, Simon Goldschmidt wrote:

This reverts commit 6f57c34473d37b8da5e6a3764d0d377d748aeef1 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: Roosen Henri Henri.Roosen@ginzinger.com Signed-off-by: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com Reviewed-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com

Applied to u-boot/master, thanks!