Commit 191d4437 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
Browse files

sh: reset hardware from early printk 



Reset the transmitter and receiver when setting up early printk.

Signed-off-by: default avatarMagnus Damm <damm@igel.co.jp>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 4a65e382

arch/sh/kernel/early_printk.c

+3 −3
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ static void scif_sercon_init(char *s) 
	} while (!(status & SCxSR_TEND(port)));



	sci_out(port, SCSCR, 0);	 /* TE=0, RE=0 */

	sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);

	sci_out(port, SCSMR, 0);



	/* Set baud rate */
@@ -174,12 +175,11 @@ static void scif_sercon_init(char *s) 
		(32 * baud) - 1);

	udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */



	sci_out(port, SCFCR, 12);

	sci_out(port, SCFCR, 8);



	sci_out(port, SCSPTR, 0);

	sci_out(port, SCxSR, 0x60);

	sci_out(port, SCLSR, 0);



	sci_out(port, SCFCR, 0);

	sci_out(port, SCSCR, 0x30);	 /* TE=1, RE=1 */

}

#endif /* defined(CONFIG_CPU_SUBTYPE_SH7720) */

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