提交 191d4437 编写于 作者: M Magnus Damm 提交者: Paul Mundt

sh: reset hardware from early printk

Reset the transmitter and receiver when setting up early printk.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
上级 4a65e382
......@@ -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) */
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册