diff options
Diffstat (limited to 'drivers/serial/sh-sci.c')
-rw-r--r-- | drivers/serial/sh-sci.c | 40 |
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__) | ||
255 | static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag) | 254 | static 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) |
294 | static void sci_init_pins_scif(struct uart_port* port, unsigned int cflag) | 288 | static 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 | ||
454 | static inline int sci_txroom(struct uart_port *port) | 447 | static 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 | ||
811 | static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) | 798 | static 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) |