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Commit dd0a3e77 authored by SUGIOKA Toshinobu's avatar SUGIOKA Toshinobu Committed by Paul Mundt
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serial: sh-sci: Fix up PORT_SCI console output ordering. 



Fix SCI transmission sequence in console output function.

This reorders the write sequence to match the SH-3 manual, and corrects
a console corruption bug observed on SH-3 SCI.

Signed-off-by: default avatarToshinobu Sugioka <sugioka@itonet.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 47785414

drivers/serial/sh-sci.c

+1 −2
Original line number Diff line number Diff line
@@ -151,9 +151,8 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) 
		status = sci_in(port, SCxSR);

	} while (!(status & SCxSR_TDxE(port)));



	sci_in(port, SCxSR);            /* Dummy read */

	sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port));

	sci_out(port, SCxTDR, c);

	sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port));

}

#endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */