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Commit ba1d2818 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Paul Mundt
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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: default avatarNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent f400f510

drivers/serial/sh-sci.h

+8 −1
Original line number Original line Diff line number Diff line
@@ -789,7 +789,14 @@ static inline int sci_rxd_in(struct uart_port *port) 
      defined(CONFIG_CPU_SUBTYPE_SH7721)

      defined(CONFIG_CPU_SUBTYPE_SH7721)

#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)

#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)

#elif defined(CONFIG_CPU_SUBTYPE_SH7723)

#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__)

#elif defined(__H8300H__) || defined(__H8300S__)

#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)

#define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)

#else /* Generic SH */

#else /* Generic SH */