52 	struct uart_cris_port *up;  in cris_console_write()  local
57 	up = etraxfs_uart_ports[co->index];  in cris_console_write()
59 	if (!up)  in cris_console_write()
63 	tr_dma_en = old = REG_RD(ser, up->regi_ser, rw_tr_dma_en);  in cris_console_write()
66 		REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);  in cris_console_write()
74 				stat = REG_RD(ser, up->regi_ser, r_stat_din);  in cris_console_write()
76 			REG_WR_INT(ser, up->regi_ser, rw_dout, '\r');  in cris_console_write()
80 			stat = REG_RD(ser, up->regi_ser, r_stat_din);  in cris_console_write()
82 		REG_WR_INT(ser, up->regi_ser, rw_dout, s[i]);  in cris_console_write()
87 		REG_WR(ser, up->regi_ser, rw_tr_dma_en, old);  in cris_console_write()
145 static inline int crisv32_serial_get_rts(struct uart_cris_port *up)  in crisv32_serial_get_rts()  argument
147 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_rts()
161 static inline void crisv32_serial_set_rts(struct uart_cris_port *up,  in crisv32_serial_set_rts()  argument
164 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_set_rts()
180 static inline int crisv32_serial_get_cts(struct uart_cris_port *up)  in crisv32_serial_get_cts()  argument
182 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_cts()
201 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_send_xchar()  local
206 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_send_xchar()
240 	up->port.icount.tx++;  in etraxfs_uart_send_xchar()
243 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_send_xchar()
281 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx()  local
284 	if (up->write_ongoing)  in etraxfs_uart_start_tx()
288 	up->write_ongoing = 1;  in etraxfs_uart_start_tx()
295 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx_bottom()  local
296 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_start_tx_bottom()
320 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_tx()  local
321 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_tx()
363 	up->write_ongoing = 0;  in etraxfs_uart_stop_tx()
368 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_rx()  local
369 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_rx()
380 static void check_modem_status(struct uart_cris_port *up)  in check_modem_status()  argument
386 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_tx_empty()  local
391 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
393 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_tx_empty()
396 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
401 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_mctrl()  local
405 	if (crisv32_serial_get_rts(up))  in etraxfs_uart_get_mctrl()
408 	if (up->dtr_pin && !gpiod_get_raw_value(up->dtr_pin))  in etraxfs_uart_get_mctrl()
411 	if (up->cd_pin && !gpiod_get_raw_value(up->cd_pin))  in etraxfs_uart_get_mctrl()
414 	if (up->ri_pin && !gpiod_get_raw_value(up->ri_pin))  in etraxfs_uart_get_mctrl()
417 	if (up->dsr_pin && !gpiod_get_raw_value(up->dsr_pin))  in etraxfs_uart_get_mctrl()
419 	if (crisv32_serial_get_cts(up))  in etraxfs_uart_get_mctrl()
426 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_mctrl()  local
428 	crisv32_serial_set_rts(up, mctrl & TIOCM_RTS ? 1 : 0, 0);  in etraxfs_uart_set_mctrl()
430 	if (up->dtr_pin)  in etraxfs_uart_set_mctrl()
431 		gpiod_set_raw_value(up->dtr_pin, mctrl & TIOCM_DTR ? 0 : 1);  in etraxfs_uart_set_mctrl()
433 	if (up->ri_pin)  in etraxfs_uart_set_mctrl()
434 		gpiod_set_raw_value(up->ri_pin, mctrl & TIOCM_RNG ? 0 : 1);  in etraxfs_uart_set_mctrl()
436 	if (up->cd_pin)  in etraxfs_uart_set_mctrl()
437 		gpiod_set_raw_value(up->cd_pin, mctrl & TIOCM_CD ? 0 : 1);  in etraxfs_uart_set_mctrl()
442 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_break_ctl()  local
448 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
449 	tr_ctrl = REG_RD(ser, up->regi_ser, rw_tr_ctrl);  in etraxfs_uart_break_ctl()
450 	tr_dma_en = REG_RD(ser, up->regi_ser, rw_tr_dma_en);  in etraxfs_uart_break_ctl()
451 	intr_mask = REG_RD(ser, up->regi_ser, rw_intr_mask);  in etraxfs_uart_break_ctl()
476 	REG_WR(ser, up->regi_ser, rw_tr_ctrl, tr_ctrl);  in etraxfs_uart_break_ctl()
477 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);  in etraxfs_uart_break_ctl()
478 	REG_WR(ser, up->regi_ser, rw_intr_mask, intr_mask);  in etraxfs_uart_break_ctl()
480 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
484 transmit_chars_no_dma(struct uart_cris_port *up)  in transmit_chars_no_dma()  argument
487 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars_no_dma()
489 	void __iomem *regi_ser = up->regi_ser;  in transmit_chars_no_dma()
493 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars_no_dma()
501 		up->write_ongoing = 0;  in transmit_chars_no_dma()
514 		up->port.icount.tx++;  in transmit_chars_no_dma()
521 		uart_write_wakeup(&up->port);  in transmit_chars_no_dma()
524 static void receive_chars_no_dma(struct uart_cris_port *up)  in receive_chars_no_dma()  argument
534 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
535 	icount = &up->port.icount;  in receive_chars_no_dma()
536 	port = &up->port.state->port;  in receive_chars_no_dma()
539 		stat_din = REG_RD(ser, up->regi_ser, rs_stat_din);  in receive_chars_no_dma()
543 		REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in receive_chars_no_dma()
570 		rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
572 	spin_unlock(&up->port.lock);  in receive_chars_no_dma()
574 	spin_lock(&up->port.lock);  in receive_chars_no_dma()
580 	struct uart_cris_port *up = (struct uart_cris_port *)dev_id;  in ser_interrupt()  local
584 	spin_lock(&up->port.lock);  in ser_interrupt()
586 	regi_ser = up->regi_ser;  in ser_interrupt()
598 			receive_chars_no_dma(up);  in ser_interrupt()
601 		check_modem_status(up);  in ser_interrupt()
604 			transmit_chars_no_dma(up);  in ser_interrupt()
608 	spin_unlock(&up->port.lock);  in ser_interrupt()
617 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_poll_char()  local
620 		stat = REG_RD(ser, up->regi_ser, rs_stat_din);  in etraxfs_uart_get_poll_char()
625 	REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in etraxfs_uart_get_poll_char()
634 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_put_poll_char()  local
637 		stat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_put_poll_char()
639 	REG_WR_INT(ser, up->regi_ser, rw_dout, c);  in etraxfs_uart_put_poll_char()
645 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_startup()  local
655 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_startup()
657 	REG_WR(ser, up->regi_ser, rw_intr_mask, ser_intr_mask);  in etraxfs_uart_startup()
659 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_startup()
661 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_startup()
668 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_shutdown()  local
671 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_shutdown()
679 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_shutdown()
681 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_shutdown()
689 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_termios()  local
800 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
804 	MODIFY_REG(up->regi_ser, rw_rec_baud_div, rx_baud_div);  in etraxfs_uart_set_termios()
805 	MODIFY_REG(up->regi_ser, rw_rec_ctrl, rx_ctrl);  in etraxfs_uart_set_termios()
807 	MODIFY_REG(up->regi_ser, rw_tr_baud_div, tx_baud_div);  in etraxfs_uart_set_termios()
808 	MODIFY_REG(up->regi_ser, rw_tr_ctrl, tx_ctrl);  in etraxfs_uart_set_termios()
811 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
813 	xoff = REG_RD(ser, up->regi_ser, rw_xoff);  in etraxfs_uart_set_termios()
815 	if (up->port.state && up->port.state->port.tty &&  in etraxfs_uart_set_termios()
816 	    (up->port.state->port.tty->termios.c_iflag & IXON)) {  in etraxfs_uart_set_termios()
817 		xoff.chr = STOP_CHAR(up->port.state->port.tty);  in etraxfs_uart_set_termios()
822 	MODIFY_REG(up->regi_ser, rw_xoff, xoff);  in etraxfs_uart_set_termios()
829 	REG_WR(ser, up->regi_ser, rw_xoff_clr, xoff_clr);  in etraxfs_uart_set_termios()
831 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_set_termios()
832 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_set_termios()
852 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_config_port()  local
854 	up->port.type = PORT_CRIS;  in etraxfs_uart_config_port()
882 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in cris_serial_port_init()  local
884 	if (up->initialized)  in cris_serial_port_init()
886 	up->initialized = 1;  in cris_serial_port_init()
890 	port->irq = up->irq;  in cris_serial_port_init()
891 	port->iobase = (unsigned long) up->regi_ser;  in cris_serial_port_init()
910 	struct uart_cris_port *up;  in etraxfs_uart_probe()  local
926 	up = devm_kzalloc(&pdev->dev, sizeof(struct uart_cris_port),  in etraxfs_uart_probe()
928 	if (!up)  in etraxfs_uart_probe()
931 	up->irq = irq_of_parse_and_map(np, 0);  in etraxfs_uart_probe()
932 	up->regi_ser = of_iomap(np, 0);  in etraxfs_uart_probe()
933 	up->dtr_pin = devm_gpiod_get_optional(&pdev->dev, "dtr");  in etraxfs_uart_probe()
934 	up->dsr_pin = devm_gpiod_get_optional(&pdev->dev, "dsr");  in etraxfs_uart_probe()
935 	up->ri_pin = devm_gpiod_get_optional(&pdev->dev, "ri");  in etraxfs_uart_probe()
936 	up->cd_pin = devm_gpiod_get_optional(&pdev->dev, "cd");  in etraxfs_uart_probe()
937 	up->port.dev = &pdev->dev;  in etraxfs_uart_probe()
938 	cris_serial_port_init(&up->port, dev_id);  in etraxfs_uart_probe()
940 	etraxfs_uart_ports[dev_id] = up;  in etraxfs_uart_probe()
941 	platform_set_drvdata(pdev, &up->port);  in etraxfs_uart_probe()
942 	uart_add_one_port(&etraxfs_uart_driver, &up->port);  in etraxfs_uart_probe()