51 	struct uart_cris_port *up;  in cris_console_write()  local
56 	up = etraxfs_uart_ports[co->index];  in cris_console_write()
58 	if (!up)  in cris_console_write()
62 	tr_dma_en = old = REG_RD(ser, up->regi_ser, rw_tr_dma_en);  in cris_console_write()
65 		REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);  in cris_console_write()
73 				stat = REG_RD(ser, up->regi_ser, r_stat_din);  in cris_console_write()
75 			REG_WR_INT(ser, up->regi_ser, rw_dout, '\r');  in cris_console_write()
79 			stat = REG_RD(ser, up->regi_ser, r_stat_din);  in cris_console_write()
81 		REG_WR_INT(ser, up->regi_ser, rw_dout, s[i]);  in cris_console_write()
86 		REG_WR(ser, up->regi_ser, rw_tr_dma_en, old);  in cris_console_write()
137 static inline int crisv32_serial_get_rts(struct uart_cris_port *up)  in crisv32_serial_get_rts()  argument
139 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_rts()
153 static inline void crisv32_serial_set_rts(struct uart_cris_port *up,  in crisv32_serial_set_rts()  argument
156 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_set_rts()
172 static inline int crisv32_serial_get_cts(struct uart_cris_port *up)  in crisv32_serial_get_cts()  argument
174 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_cts()
193 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_send_xchar()  local
198 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_send_xchar()
232 	up->port.icount.tx++;  in etraxfs_uart_send_xchar()
235 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_send_xchar()
273 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx()  local
276 	if (up->write_ongoing)  in etraxfs_uart_start_tx()
280 	up->write_ongoing = 1;  in etraxfs_uart_start_tx()
287 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx_bottom()  local
288 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_start_tx_bottom()
312 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_tx()  local
313 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_tx()
355 	up->write_ongoing = 0;  in etraxfs_uart_stop_tx()
360 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_rx()  local
361 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_rx()
370 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_tx_empty()  local
375 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
377 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_tx_empty()
380 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
385 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_mctrl()  local
389 	if (crisv32_serial_get_rts(up))  in etraxfs_uart_get_mctrl()
391 	if (crisv32_serial_get_cts(up))  in etraxfs_uart_get_mctrl()
393 	return mctrl_gpio_get(up->gpios, &ret);  in etraxfs_uart_get_mctrl()
398 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_mctrl()  local
400 	crisv32_serial_set_rts(up, mctrl & TIOCM_RTS ? 1 : 0, 0);  in etraxfs_uart_set_mctrl()
401 	mctrl_gpio_set(up->gpios, mctrl);  in etraxfs_uart_set_mctrl()
406 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_break_ctl()  local
412 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
413 	tr_ctrl = REG_RD(ser, up->regi_ser, rw_tr_ctrl);  in etraxfs_uart_break_ctl()
414 	tr_dma_en = REG_RD(ser, up->regi_ser, rw_tr_dma_en);  in etraxfs_uart_break_ctl()
415 	intr_mask = REG_RD(ser, up->regi_ser, rw_intr_mask);  in etraxfs_uart_break_ctl()
440 	REG_WR(ser, up->regi_ser, rw_tr_ctrl, tr_ctrl);  in etraxfs_uart_break_ctl()
441 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);  in etraxfs_uart_break_ctl()
442 	REG_WR(ser, up->regi_ser, rw_intr_mask, intr_mask);  in etraxfs_uart_break_ctl()
444 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
448 transmit_chars_no_dma(struct uart_cris_port *up)  in transmit_chars_no_dma()  argument
451 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars_no_dma()
453 	void __iomem *regi_ser = up->regi_ser;  in transmit_chars_no_dma()
457 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars_no_dma()
465 		up->write_ongoing = 0;  in transmit_chars_no_dma()
478 		up->port.icount.tx++;  in transmit_chars_no_dma()
485 		uart_write_wakeup(&up->port);  in transmit_chars_no_dma()
488 static void receive_chars_no_dma(struct uart_cris_port *up)  in receive_chars_no_dma()  argument
498 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
499 	icount = &up->port.icount;  in receive_chars_no_dma()
500 	port = &up->port.state->port;  in receive_chars_no_dma()
503 		stat_din = REG_RD(ser, up->regi_ser, rs_stat_din);  in receive_chars_no_dma()
507 		REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in receive_chars_no_dma()
534 		rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
536 	spin_unlock(&up->port.lock);  in receive_chars_no_dma()
538 	spin_lock(&up->port.lock);  in receive_chars_no_dma()
544 	struct uart_cris_port *up = (struct uart_cris_port *)dev_id;  in ser_interrupt()  local
548 	spin_lock(&up->port.lock);  in ser_interrupt()
550 	regi_ser = up->regi_ser;  in ser_interrupt()
562 			receive_chars_no_dma(up);  in ser_interrupt()
567 			transmit_chars_no_dma(up);  in ser_interrupt()
571 	spin_unlock(&up->port.lock);  in ser_interrupt()
580 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_poll_char()  local
583 		stat = REG_RD(ser, up->regi_ser, rs_stat_din);  in etraxfs_uart_get_poll_char()
588 	REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in etraxfs_uart_get_poll_char()
597 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_put_poll_char()  local
600 		stat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_put_poll_char()
602 	REG_WR_INT(ser, up->regi_ser, rw_dout, c);  in etraxfs_uart_put_poll_char()
608 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_startup()  local
618 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_startup()
620 	REG_WR(ser, up->regi_ser, rw_intr_mask, ser_intr_mask);  in etraxfs_uart_startup()
622 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_startup()
624 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_startup()
631 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_shutdown()  local
634 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_shutdown()
642 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_shutdown()
644 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_shutdown()
652 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_termios()  local
763 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
767 	MODIFY_REG(up->regi_ser, rw_rec_baud_div, rx_baud_div);  in etraxfs_uart_set_termios()
768 	MODIFY_REG(up->regi_ser, rw_rec_ctrl, rx_ctrl);  in etraxfs_uart_set_termios()
770 	MODIFY_REG(up->regi_ser, rw_tr_baud_div, tx_baud_div);  in etraxfs_uart_set_termios()
771 	MODIFY_REG(up->regi_ser, rw_tr_ctrl, tx_ctrl);  in etraxfs_uart_set_termios()
774 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
776 	xoff = REG_RD(ser, up->regi_ser, rw_xoff);  in etraxfs_uart_set_termios()
778 	if (up->port.state && up->port.state->port.tty &&  in etraxfs_uart_set_termios()
779 	    (up->port.state->port.tty->termios.c_iflag & IXON)) {  in etraxfs_uart_set_termios()
780 		xoff.chr = STOP_CHAR(up->port.state->port.tty);  in etraxfs_uart_set_termios()
785 	MODIFY_REG(up->regi_ser, rw_xoff, xoff);  in etraxfs_uart_set_termios()
792 	REG_WR(ser, up->regi_ser, rw_xoff_clr, xoff_clr);  in etraxfs_uart_set_termios()
794 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_set_termios()
795 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_set_termios()
815 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_config_port()  local
817 	up->port.type = PORT_CRIS;  in etraxfs_uart_config_port()
844 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in cris_serial_port_init()  local
846 	if (up->initialized)  in cris_serial_port_init()
848 	up->initialized = 1;  in cris_serial_port_init()
852 	port->irq = up->irq;  in cris_serial_port_init()
853 	port->iobase = (unsigned long) up->regi_ser;  in cris_serial_port_init()
872 	struct uart_cris_port *up;  in etraxfs_uart_probe()  local
888 	up = devm_kzalloc(&pdev->dev, sizeof(struct uart_cris_port),  in etraxfs_uart_probe()
890 	if (!up)  in etraxfs_uart_probe()
893 	up->irq = irq_of_parse_and_map(np, 0);  in etraxfs_uart_probe()
894 	up->regi_ser = of_iomap(np, 0);  in etraxfs_uart_probe()
895 	up->port.dev = &pdev->dev;  in etraxfs_uart_probe()
897 	up->gpios = mctrl_gpio_init_noauto(&pdev->dev, 0);  in etraxfs_uart_probe()
898 	if (IS_ERR(up->gpios))  in etraxfs_uart_probe()
899 		return PTR_ERR(up->gpios);  in etraxfs_uart_probe()
901 	cris_serial_port_init(&up->port, dev_id);  in etraxfs_uart_probe()
903 	etraxfs_uart_ports[dev_id] = up;  in etraxfs_uart_probe()
904 	platform_set_drvdata(pdev, &up->port);  in etraxfs_uart_probe()
905 	uart_add_one_port(&etraxfs_uart_driver, &up->port);  in etraxfs_uart_probe()