serial: sh-sci: Add support SCIF of SH7723
SH7723 has two types of SCIF (SCIF and SCIFA).
The current sh-sci driver supports only SCIFA, and calculation methods of SCBRR
are different.
This patch support this methods.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 511c10d..7cd28b2 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -789,7 +789,14 @@
defined(CONFIG_CPU_SUBTYPE_SH7721)
#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
-#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(16*bps)-1)
+static inline int scbrr_calc(struct uart_port *port, int bps, int clk)
+{
+ if (port->type == PORT_SCIF)
+ return (clk+16*bps)/(32*bps)-1;
+ else
+ return ((clk*2)+16*bps)/(16*bps)-1;
+}
+#define SCBRR_VALUE(bps, clk) scbrr_calc(port, bps, clk)
#elif defined(__H8300H__) || defined(__H8300S__)
#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
#else /* Generic SH */