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()
138 static inline int crisv32_serial_get_rts(struct uart_cris_port *up)  in crisv32_serial_get_rts()  argument
140 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_rts()
154 static inline void crisv32_serial_set_rts(struct uart_cris_port *up,  in crisv32_serial_set_rts()  argument
157 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_set_rts()
173 static inline int crisv32_serial_get_cts(struct uart_cris_port *up)  in crisv32_serial_get_cts()  argument
175 	void __iomem *regi_ser = up->regi_ser;  in crisv32_serial_get_cts()
194 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_send_xchar()  local
199 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_send_xchar()
233 	up->port.icount.tx++;  in etraxfs_uart_send_xchar()
236 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_send_xchar()
274 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx()  local
277 	if (up->write_ongoing)  in etraxfs_uart_start_tx()
281 	up->write_ongoing = 1;  in etraxfs_uart_start_tx()
288 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_start_tx_bottom()  local
289 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_start_tx_bottom()
313 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_tx()  local
314 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_tx()
356 	up->write_ongoing = 0;  in etraxfs_uart_stop_tx()
361 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_stop_rx()  local
362 	void __iomem *regi_ser = up->regi_ser;  in etraxfs_uart_stop_rx()
371 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_tx_empty()  local
376 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
378 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_tx_empty()
381 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_tx_empty()
386 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_mctrl()  local
390 	if (crisv32_serial_get_rts(up))  in etraxfs_uart_get_mctrl()
392 	if (crisv32_serial_get_cts(up))  in etraxfs_uart_get_mctrl()
394 	return mctrl_gpio_get(up->gpios, &ret);  in etraxfs_uart_get_mctrl()
399 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_mctrl()  local
401 	crisv32_serial_set_rts(up, mctrl & TIOCM_RTS ? 1 : 0, 0);  in etraxfs_uart_set_mctrl()
402 	mctrl_gpio_set(up->gpios, mctrl);  in etraxfs_uart_set_mctrl()
407 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_break_ctl()  local
413 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
414 	tr_ctrl = REG_RD(ser, up->regi_ser, rw_tr_ctrl);  in etraxfs_uart_break_ctl()
415 	tr_dma_en = REG_RD(ser, up->regi_ser, rw_tr_dma_en);  in etraxfs_uart_break_ctl()
416 	intr_mask = REG_RD(ser, up->regi_ser, rw_intr_mask);  in etraxfs_uart_break_ctl()
441 	REG_WR(ser, up->regi_ser, rw_tr_ctrl, tr_ctrl);  in etraxfs_uart_break_ctl()
442 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tr_dma_en);  in etraxfs_uart_break_ctl()
443 	REG_WR(ser, up->regi_ser, rw_intr_mask, intr_mask);  in etraxfs_uart_break_ctl()
445 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_break_ctl()
449 transmit_chars_no_dma(struct uart_cris_port *up)  in transmit_chars_no_dma()  argument
452 	struct circ_buf *xmit = &up->port.state->xmit;  in transmit_chars_no_dma()
454 	void __iomem *regi_ser = up->regi_ser;  in transmit_chars_no_dma()
458 	if (uart_circ_empty(xmit) || uart_tx_stopped(&up->port)) {  in transmit_chars_no_dma()
466 		up->write_ongoing = 0;  in transmit_chars_no_dma()
479 		up->port.icount.tx++;  in transmit_chars_no_dma()
486 		uart_write_wakeup(&up->port);  in transmit_chars_no_dma()
489 static void receive_chars_no_dma(struct uart_cris_port *up)  in receive_chars_no_dma()  argument
499 	rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
500 	icount = &up->port.icount;  in receive_chars_no_dma()
501 	port = &up->port.state->port;  in receive_chars_no_dma()
504 		stat_din = REG_RD(ser, up->regi_ser, rs_stat_din);  in receive_chars_no_dma()
508 		REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in receive_chars_no_dma()
535 		rstat = REG_RD(ser, up->regi_ser, r_stat_din);  in receive_chars_no_dma()
537 	spin_unlock(&up->port.lock);  in receive_chars_no_dma()
539 	spin_lock(&up->port.lock);  in receive_chars_no_dma()
545 	struct uart_cris_port *up = (struct uart_cris_port *)dev_id;  in ser_interrupt()  local
549 	spin_lock(&up->port.lock);  in ser_interrupt()
551 	regi_ser = up->regi_ser;  in ser_interrupt()
563 			receive_chars_no_dma(up);  in ser_interrupt()
568 			transmit_chars_no_dma(up);  in ser_interrupt()
572 	spin_unlock(&up->port.lock);  in ser_interrupt()
581 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_get_poll_char()  local
584 		stat = REG_RD(ser, up->regi_ser, rs_stat_din);  in etraxfs_uart_get_poll_char()
589 	REG_WR(ser, up->regi_ser, rw_ack_intr, ack_intr);  in etraxfs_uart_get_poll_char()
598 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_put_poll_char()  local
601 		stat = REG_RD(ser, up->regi_ser, r_stat_din);  in etraxfs_uart_put_poll_char()
603 	REG_WR_INT(ser, up->regi_ser, rw_dout, c);  in etraxfs_uart_put_poll_char()
609 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_startup()  local
619 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_startup()
621 	REG_WR(ser, up->regi_ser, rw_intr_mask, ser_intr_mask);  in etraxfs_uart_startup()
623 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_startup()
625 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_startup()
632 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_shutdown()  local
635 	spin_lock_irqsave(&up->port.lock, flags);  in etraxfs_uart_shutdown()
643 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_shutdown()
645 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_shutdown()
653 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_set_termios()  local
764 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
768 	MODIFY_REG(up->regi_ser, rw_rec_baud_div, rx_baud_div);  in etraxfs_uart_set_termios()
769 	MODIFY_REG(up->regi_ser, rw_rec_ctrl, rx_ctrl);  in etraxfs_uart_set_termios()
771 	MODIFY_REG(up->regi_ser, rw_tr_baud_div, tx_baud_div);  in etraxfs_uart_set_termios()
772 	MODIFY_REG(up->regi_ser, rw_tr_ctrl, tx_ctrl);  in etraxfs_uart_set_termios()
775 	REG_WR(ser, up->regi_ser, rw_tr_dma_en, tx_dma_en);  in etraxfs_uart_set_termios()
777 	xoff = REG_RD(ser, up->regi_ser, rw_xoff);  in etraxfs_uart_set_termios()
779 	if (up->port.state && up->port.state->port.tty &&  in etraxfs_uart_set_termios()
780 	    (up->port.state->port.tty->termios.c_iflag & IXON)) {  in etraxfs_uart_set_termios()
781 		xoff.chr = STOP_CHAR(up->port.state->port.tty);  in etraxfs_uart_set_termios()
786 	MODIFY_REG(up->regi_ser, rw_xoff, xoff);  in etraxfs_uart_set_termios()
793 	REG_WR(ser, up->regi_ser, rw_xoff_clr, xoff_clr);  in etraxfs_uart_set_termios()
795 	etraxfs_uart_set_mctrl(&up->port, up->port.mctrl);  in etraxfs_uart_set_termios()
796 	spin_unlock_irqrestore(&up->port.lock, flags);  in etraxfs_uart_set_termios()
816 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in etraxfs_uart_config_port()  local
818 	up->port.type = PORT_CRIS;  in etraxfs_uart_config_port()
845 	struct uart_cris_port *up = (struct uart_cris_port *)port;  in cris_serial_port_init()  local
847 	if (up->initialized)  in cris_serial_port_init()
849 	up->initialized = 1;  in cris_serial_port_init()
853 	port->irq = up->irq;  in cris_serial_port_init()
854 	port->iobase = (unsigned long) up->regi_ser;  in cris_serial_port_init()
873 	struct uart_cris_port *up;  in etraxfs_uart_probe()  local
889 	up = devm_kzalloc(&pdev->dev, sizeof(struct uart_cris_port),  in etraxfs_uart_probe()
891 	if (!up)  in etraxfs_uart_probe()
894 	up->irq = irq_of_parse_and_map(np, 0);  in etraxfs_uart_probe()
895 	up->regi_ser = of_iomap(np, 0);  in etraxfs_uart_probe()
896 	up->port.dev = &pdev->dev;  in etraxfs_uart_probe()
898 	up->gpios = mctrl_gpio_init_noauto(&pdev->dev, 0);  in etraxfs_uart_probe()
899 	if (IS_ERR(up->gpios))  in etraxfs_uart_probe()
900 		return PTR_ERR(up->gpios);  in etraxfs_uart_probe()
902 	cris_serial_port_init(&up->port, dev_id);  in etraxfs_uart_probe()
904 	etraxfs_uart_ports[dev_id] = up;  in etraxfs_uart_probe()
905 	platform_set_drvdata(pdev, &up->port);  in etraxfs_uart_probe()
906 	uart_add_one_port(&etraxfs_uart_driver, &up->port);  in etraxfs_uart_probe()