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Commit 15c73aaa authored by Paul Mundt's avatar Paul Mundt
Browse files

serial: sh-sci: Kill off all of the SCI/SCIF special casing. 



This was added at a time when the compiler did a less than stellar job of
optimizing out dead code. These days this tends to be less of a concern,
so kill it all off.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent bc0f424f

drivers/serial/sh-sci.c

+1 −16
Original line number Diff line number Diff line
@@ -250,8 +250,7 @@ static inline void h8300_sci_disable(struct uart_port *port) 
}

#endif



#if defined(SCI_ONLY) || defined(SCI_AND_SCIF) && \

    defined(__H8300H__) || defined(__H8300S__)

#if defined(__H8300H__) || defined(__H8300S__)

static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag)

{

	int ch = (port->mapbase - SMR0) >> 3;
@@ -285,11 +284,6 @@ static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag) 
#define sci_init_pins_irda NULL

#endif



#ifdef SCI_ONLY

#define sci_init_pins_scif NULL

#endif



#if defined(SCIF_ONLY) || defined(SCI_AND_SCIF)

#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)

static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag)

{
@@ -449,7 +443,6 @@ static inline int scif_rxroom(struct uart_port *port) 
	return sci_in(port, SCFDR) & SCIF_RFDC_MASK;

}

#endif

#endif /* SCIF_ONLY || SCI_AND_SCIF */



static inline int sci_txroom(struct uart_port *port)

{
@@ -485,11 +478,9 @@ static void sci_transmit_chars(struct uart_port *port) 
		return;

	}



#ifndef SCI_ONLY

	if (port->type == PORT_SCIF)

		count = scif_txroom(port);

	else

#endif

		count = sci_txroom(port);



	do {
@@ -519,12 +510,10 @@ static void sci_transmit_chars(struct uart_port *port) 
	} else {

		ctrl = sci_in(port, SCSCR);



#if !defined(SCI_ONLY)

		if (port->type == PORT_SCIF) {

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

			sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));

		}

#endif



		ctrl |= SCI_CTRL_FLAGS_TIE;

		sci_out(port, SCSCR, ctrl);
@@ -547,11 +536,9 @@ static inline void sci_receive_chars(struct uart_port *port) 
		return;



	while (1) {

#if !defined(SCI_ONLY)

		if (port->type == PORT_SCIF)

			count = scif_rxroom(port);

		else

#endif

			count = sci_rxroom(port);



		/* Don't copy more bytes than there is room for in the buffer */
@@ -1054,10 +1041,8 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, 


	sci_out(port, SCSCR, 0x00);	/* TE=0, RE=0, CKE1=0 */



#if !defined(SCI_ONLY)

	if (port->type == PORT_SCIF)

		sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);

#endif



	smr_val = sci_in(port, SCSMR) & 3;

	if ((termios->c_cflag & CSIZE) == CS7)

drivers/serial/sh-sci.h

+15 −67
Original line number Diff line number Diff line
@@ -16,7 +16,6 @@ 
# define SCPCR  0xA4000116 /* 16 bit SCI and SCIF */

# define SCPDR  0xA4000136 /* 8  bit SCI and SCIF */

# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */

# define SCI_AND_SCIF

#elif defined(CONFIG_CPU_SUBTYPE_SH7705)

# define SCIF0		0xA4400000

# define SCIF2		0xA4410000
@@ -30,17 +29,14 @@ 
 * SCIF0 (0xA4400000) -> Internal clock, SCK pin as serial clock output

 */

# define SCSCR_INIT(port) (port->mapbase == SCIF2) ? 0xF3 : 0xF0

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7720) || \

      defined(CONFIG_CPU_SUBTYPE_SH7721)

# define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */

# define SCIF_ONLY

#define SCIF_ORER    0x0200   /* overrun error bit */

#elif defined(CONFIG_SH_RTS7751R2D)

# define SCSPTR2 0xFFE80020 /* 16 bit SCIF */

# define SCIF_ORER 0x0001   /* overrun error bit */

# define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7750)  || \

      defined(CONFIG_CPU_SUBTYPE_SH7750R) || \

      defined(CONFIG_CPU_SUBTYPE_SH7750S) || \
@@ -53,28 +49,24 @@ 
# define SCSCR_INIT(port) (((port)->type == PORT_SCI) ? \

	0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ : \

	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ )

# define SCI_AND_SCIF

#elif defined(CONFIG_CPU_SUBTYPE_SH7760)

# define SCSPTR0 0xfe600024 /* 16 bit SCIF */

# define SCSPTR1 0xfe610024 /* 16 bit SCIF */

# define SCSPTR2 0xfe620024 /* 16 bit SCIF */

# define SCIF_ORER 0x0001  /* overrun error bit */

# define SCSCR_INIT(port)          0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)

# define SCSPTR0 0xA4400000	  /* 16 bit SCIF */

# define SCIF_ORER 0x0001   /* overrun error bit */

# define PACR 0xa4050100

# define PBCR 0xa4050102

# define SCSCR_INIT(port)          0x3B

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7343)

# define SCSPTR0 0xffe00010	/* 16 bit SCIF */

# define SCSPTR1 0xffe10010	/* 16 bit SCIF */

# define SCSPTR2 0xffe20010	/* 16 bit SCIF */

# define SCSPTR3 0xffe30010	/* 16 bit SCIF */

# define SCSCR_INIT(port) 0x32	/* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7722)

# define PADR			0xA4050120

# define PSDR			0xA405013e
@@ -82,7 +74,6 @@ 
# define PSCR			0xA405011E

# define SCIF_ORER		0x0001	/* overrun error bit */

# define SCSCR_INIT(port)	0x0038	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7366)

# define SCPDR0			0xA405013E      /* 16 bit SCIF0 PSDR */

# define SCSPTR0		SCPDR0
@@ -97,12 +88,10 @@ 
# define SCSPTR5                0xa4050128

# define SCIF_ORER              0x0001  /* overrun error bit */

# define SCSCR_INIT(port)       0x0038  /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH4_202)

# define SCSPTR2 0xffe80020 /* 16 bit SCIF */

# define SCIF_ORER 0x0001   /* overrun error bit */

# define SCSCR_INIT(port) 0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103)

# define SCIF_BASE_ADDR    0x01030000

# define SCIF_ADDR_SH5     PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
@@ -111,14 +100,11 @@ 
# define SCSPTR2           ((port->mapbase)+SCIF_PTR2_OFFS) /* 16 bit SCIF */

# define SCLSR2            ((port->mapbase)+SCIF_LSR2_OFFS) /* 16 bit SCIF */

# define SCSCR_INIT(port)  0x38		/* TIE=0,RIE=0, TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_H83007) || defined(CONFIG_H83068)

# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */

# define SCI_ONLY

# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)

#elif defined(CONFIG_H8S2678)

# define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */

# define SCI_ONLY

# define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)

#elif defined(CONFIG_CPU_SUBTYPE_SH7763)

# define SCSPTR0 0xffe00024 /* 16 bit SCIF */
@@ -126,20 +112,17 @@ 
# define SCSPTR2 0xffe10020 /* 16 bit SCIF/IRDA */

# define SCIF_ORER 0x0001  /* overrun error bit */

# define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7770)

# define SCSPTR0 0xff923020 /* 16 bit SCIF */

# define SCSPTR1 0xff924020 /* 16 bit SCIF */

# define SCSPTR2 0xff925020 /* 16 bit SCIF */

# define SCIF_ORER 0x0001  /* overrun error bit */

# define SCSCR_INIT(port)	0x3c /* TIE=0,RIE=0,TE=1,RE=1,REIE=1,cke=2 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7780)

# define SCSPTR0	0xffe00024	/* 16 bit SCIF */

# define SCSPTR1	0xffe10024	/* 16 bit SCIF */

# define SCIF_ORER	0x0001		/* Overrun error bit */

# define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7785)

# define SCSPTR0	0xffea0024	/* 16 bit SCIF */

# define SCSPTR1	0xffeb0024	/* 16 bit SCIF */
@@ -149,7 +132,6 @@ 
# define SCSPTR5	0xffef0024	/* 16 bit SCIF */

# define SCIF_OPER	0x0001		/* Overrun error bit */

# define SCSCR_INIT(port)	0x3a	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7203) || \

      defined(CONFIG_CPU_SUBTYPE_SH7206) || \

      defined(CONFIG_CPU_SUBTYPE_SH7263)
@@ -158,14 +140,12 @@ 
# define SCSPTR2 0xfffe9020 /* 16 bit SCIF */

# define SCSPTR3 0xfffe9820 /* 16 bit SCIF */

# define SCSCR_INIT(port)	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SH7619)

# define SCSPTR0 0xf8400020 /* 16 bit SCIF */

# define SCSPTR1 0xf8410020 /* 16 bit SCIF */

# define SCSPTR2 0xf8420020 /* 16 bit SCIF */

# define SCIF_ORER 0x0001  /* overrun error bit */

# define SCSCR_INIT(port)	0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#elif defined(CONFIG_CPU_SUBTYPE_SHX3)

# define SCSPTR0 0xffc30020		/* 16 bit SCIF */

# define SCSPTR1 0xffc40020		/* 16 bit SCIF */
@@ -173,7 +153,6 @@ 
# define SCSPTR3 0xffc60020		/* 16 bit SCIF */

# define SCIF_ORER 0x0001		/* Overrun error bit */

# define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */

# define SCIF_ONLY

#else

# error CPU subtype not defined

#endif
@@ -244,32 +223,20 @@ 
# define SCIF_TXROOM_MAX 16

#endif



#if defined(SCI_ONLY)

# define SCxSR_TEND(port)		SCI_TEND

# define SCxSR_ERRORS(port)		SCI_ERRORS

# define SCxSR_RDxF(port)               SCI_RDRF

# define SCxSR_TDxE(port)               SCI_TDRE

# define SCxSR_ORER(port)		SCI_ORER

# define SCxSR_FER(port)		SCI_FER

# define SCxSR_PER(port)		SCI_PER

# define SCxSR_BRK(port)		0x00

# define SCxSR_RDxF_CLEAR(port)		0xbc

# define SCxSR_ERROR_CLEAR(port)	0xc4

# define SCxSR_TDxE_CLEAR(port)		0x78

# define SCxSR_BREAK_CLEAR(port)	0xc4

#elif defined(SCIF_ONLY)

# define SCxSR_TEND(port)		SCIF_TEND

# define SCxSR_ERRORS(port)		SCIF_ERRORS

# define SCxSR_RDxF(port)               SCIF_RDF

# define SCxSR_TDxE(port)               SCIF_TDFE

#define SCxSR_TEND(port)	(((port)->type == PORT_SCI) ? SCI_TEND   : SCIF_TEND)

#define SCxSR_ERRORS(port)	(((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)

#define SCxSR_RDxF(port)	(((port)->type == PORT_SCI) ? SCI_RDRF   : SCIF_RDF)

#define SCxSR_TDxE(port)	(((port)->type == PORT_SCI) ? SCI_TDRE   : SCIF_TDFE)

#define SCxSR_FER(port)		(((port)->type == PORT_SCI) ? SCI_FER    : SCIF_FER)

#define SCxSR_PER(port)		(((port)->type == PORT_SCI) ? SCI_PER    : SCIF_PER)

#define SCxSR_BRK(port)		(((port)->type == PORT_SCI) ? 0x00       : SCIF_BRK)



#if defined(CONFIG_CPU_SUBTYPE_SH7705)

# define SCxSR_ORER(port)		SCIF_ORER

# define SCxSR_ORER(port)	(((port)->type == PORT_SCI) ? SCI_ORER : SCIF_ORER)

#else

# define SCxSR_ORER(port)		0x0000

# define SCxSR_ORER(port)	(((port)->type == PORT_SCI) ? SCI_ORER : 0x0000)

#endif

# define SCxSR_FER(port)		SCIF_FER

# define SCxSR_PER(port)		SCIF_PER

# define SCxSR_BRK(port)		SCIF_BRK



#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \

    defined(CONFIG_CPU_SUBTYPE_SH7720) || \

    defined(CONFIG_CPU_SUBTYPE_SH7721)
@@ -278,21 +245,6 @@ 
# define SCxSR_TDxE_CLEAR(port)	 (sci_in(port, SCxSR) & 0xffdf)

# define SCxSR_BREAK_CLEAR(port) (sci_in(port, SCxSR) & 0xffe3)

#else

/* SH7705 can also use this, clearing is same between 7705 and 7709 */

# define SCxSR_RDxF_CLEAR(port)		0x00fc

# define SCxSR_ERROR_CLEAR(port)	0x0073

# define SCxSR_TDxE_CLEAR(port)		0x00df

# define SCxSR_BREAK_CLEAR(port)	0x00e3

#endif

#else

# define SCxSR_TEND(port)	 (((port)->type == PORT_SCI) ? SCI_TEND   : SCIF_TEND)

# define SCxSR_ERRORS(port)	 (((port)->type == PORT_SCI) ? SCI_ERRORS : SCIF_ERRORS)

# define SCxSR_RDxF(port)        (((port)->type == PORT_SCI) ? SCI_RDRF   : SCIF_RDF)

# define SCxSR_TDxE(port)        (((port)->type == PORT_SCI) ? SCI_TDRE   : SCIF_TDFE)

# define SCxSR_ORER(port)        (((port)->type == PORT_SCI) ? SCI_ORER   : 0x0000)

# define SCxSR_FER(port)         (((port)->type == PORT_SCI) ? SCI_FER    : SCIF_FER)

# define SCxSR_PER(port)         (((port)->type == PORT_SCI) ? SCI_PER    : SCIF_PER)

# define SCxSR_BRK(port)         (((port)->type == PORT_SCI) ? 0x00       : SCIF_BRK)

# define SCxSR_RDxF_CLEAR(port)	 (((port)->type == PORT_SCI) ? 0xbc : 0x00fc)

# define SCxSR_ERROR_CLEAR(port) (((port)->type == PORT_SCI) ? 0xc4 : 0x0073)

# define SCxSR_TDxE_CLEAR(port)  (((port)->type == PORT_SCI) ? 0x78 : 0x00df)
@@ -578,14 +530,10 @@ static inline int sci_rxd_in(struct uart_port *port) 
      defined(CONFIG_CPU_SUBTYPE_SH4_202)

static inline int sci_rxd_in(struct uart_port *port)

{

#ifndef SCIF_ONLY

	if (port->mapbase == 0xffe00000)

		return ctrl_inb(SCSPTR1)&0x01 ? 1 : 0; /* SCI */

#endif

#ifndef SCI_ONLY

	if (port->mapbase == 0xffe80000)

		return ctrl_inw(SCSPTR2)&0x0001 ? 1 : 0; /* SCIF */

#endif

	return 1;

}

#elif defined(CONFIG_CPU_SUBTYPE_SH7760)