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path: root/drivers/serial/sh-sci.c
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Diffstat (limited to 'drivers/serial/sh-sci.c')
-rw-r--r--drivers/serial/sh-sci.c40
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index f0658d2c45b2..5c0f32c7fbf6 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -250,8 +250,7 @@ static inline void h8300_sci_disable(struct uart_port *port)
250} 250}
251#endif 251#endif
252 252
253#if defined(SCI_ONLY) || defined(SCI_AND_SCIF) && \ 253#if defined(__H8300H__) || defined(__H8300S__)
254 defined(__H8300H__) || defined(__H8300S__)
255static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag) 254static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag)
256{ 255{
257 int ch = (port->mapbase - SMR0) >> 3; 256 int ch = (port->mapbase - SMR0) >> 3;
@@ -285,11 +284,6 @@ static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag)
285#define sci_init_pins_irda NULL 284#define sci_init_pins_irda NULL
286#endif 285#endif
287 286
288#ifdef SCI_ONLY
289#define sci_init_pins_scif NULL
290#endif
291
292#if defined(SCIF_ONLY) || defined(SCI_AND_SCIF)
293#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) 287#if defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
294static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag) 288static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag)
295{ 289{
@@ -449,7 +443,6 @@ static inline int scif_rxroom(struct uart_port *port)
449 return sci_in(port, SCFDR) & SCIF_RFDC_MASK; 443 return sci_in(port, SCFDR) & SCIF_RFDC_MASK;
450} 444}
451#endif 445#endif
452#endif /* SCIF_ONLY || SCI_AND_SCIF */
453 446
454static inline int sci_txroom(struct uart_port *port) 447static inline int sci_txroom(struct uart_port *port)
455{ 448{
@@ -485,11 +478,9 @@ static void sci_transmit_chars(struct uart_port *port)
485 return; 478 return;
486 } 479 }
487 480
488#ifndef SCI_ONLY
489 if (port->type == PORT_SCIF) 481 if (port->type == PORT_SCIF)
490 count = scif_txroom(port); 482 count = scif_txroom(port);
491 else 483 else
492#endif
493 count = sci_txroom(port); 484 count = sci_txroom(port);
494 485
495 do { 486 do {
@@ -519,12 +510,10 @@ static void sci_transmit_chars(struct uart_port *port)
519 } else { 510 } else {
520 ctrl = sci_in(port, SCSCR); 511 ctrl = sci_in(port, SCSCR);
521 512
522#if !defined(SCI_ONLY)
523 if (port->type == PORT_SCIF) { 513 if (port->type == PORT_SCIF) {
524 sci_in(port, SCxSR); /* Dummy read */ 514 sci_in(port, SCxSR); /* Dummy read */
525 sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); 515 sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port));
526 } 516 }
527#endif
528 517
529 ctrl |= SCI_CTRL_FLAGS_TIE; 518 ctrl |= SCI_CTRL_FLAGS_TIE;
530 sci_out(port, SCSCR, ctrl); 519 sci_out(port, SCSCR, ctrl);
@@ -547,11 +536,9 @@ static inline void sci_receive_chars(struct uart_port *port)
547 return; 536 return;
548 537
549 while (1) { 538 while (1) {
550#if !defined(SCI_ONLY)
551 if (port->type == PORT_SCIF) 539 if (port->type == PORT_SCIF)
552 count = scif_rxroom(port); 540 count = scif_rxroom(port);
553 else 541 else
554#endif
555 count = sci_rxroom(port); 542 count = sci_rxroom(port);
556 543
557 /* Don't copy more bytes than there is room for in the buffer */ 544 /* Don't copy more bytes than there is room for in the buffer */
@@ -810,26 +797,27 @@ static irqreturn_t sci_br_interrupt(int irq, void *ptr)
810 797
811static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) 798static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
812{ 799{
813 unsigned short ssr_status, scr_status; 800 unsigned short ssr_status, scr_status;
814 struct uart_port *port = ptr; 801 struct uart_port *port = ptr;
802 irqreturn_t ret = IRQ_NONE;
815 803
816 ssr_status = sci_in(port,SCxSR); 804 ssr_status = sci_in(port,SCxSR);
817 scr_status = sci_in(port,SCSCR); 805 scr_status = sci_in(port,SCSCR);
818 806
819 /* Tx Interrupt */ 807 /* Tx Interrupt */
820 if ((ssr_status & 0x0020) && (scr_status & 0x0080)) 808 if ((ssr_status & 0x0020) && (scr_status & SCI_CTRL_FLAGS_TIE))
821 sci_tx_interrupt(irq, ptr); 809 ret = sci_tx_interrupt(irq, ptr);
822 /* Rx Interrupt */ 810 /* Rx Interrupt */
823 if ((ssr_status & 0x0002) && (scr_status & 0x0040)) 811 if ((ssr_status & 0x0002) && (scr_status & SCI_CTRL_FLAGS_RIE))
824 sci_rx_interrupt(irq, ptr); 812 ret = sci_rx_interrupt(irq, ptr);
825 /* Error Interrupt */ 813 /* Error Interrupt */
826 if ((ssr_status & 0x0080) && (scr_status & 0x0400)) 814 if ((ssr_status & 0x0080) && (scr_status & SCI_CTRL_FLAGS_REIE))
827 sci_er_interrupt(irq, ptr); 815 ret = sci_er_interrupt(irq, ptr);
828 /* Break Interrupt */ 816 /* Break Interrupt */
829 if ((ssr_status & 0x0010) && (scr_status & 0x0200)) 817 if ((ssr_status & 0x0010) && (scr_status & SCI_CTRL_FLAGS_REIE))
830 sci_br_interrupt(irq, ptr); 818 ret = sci_br_interrupt(irq, ptr);
831 819
832 return IRQ_HANDLED; 820 return ret;
833} 821}
834 822
835#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_HAVE_CLK) 823#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_HAVE_CLK)
@@ -1054,10 +1042,8 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
1054 1042
1055 sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ 1043 sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */
1056 1044
1057#if !defined(SCI_ONLY)
1058 if (port->type == PORT_SCIF) 1045 if (port->type == PORT_SCIF)
1059 sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); 1046 sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
1060#endif
1061 1047
1062 smr_val = sci_in(port, SCSMR) & 3; 1048 smr_val = sci_in(port, SCSMR) & 3;
1063 if ((termios->c_cflag & CSIZE) == CS7) 1049 if ((termios->c_cflag & CSIZE) == CS7)