202 static void mxs_auart_stop_tx(struct uart_port *u);
204 #define to_auart_port(u) container_of(u, struct mxs_auart_port, port)  argument
389 static int mxs_auart_request_port(struct uart_port *u)  in mxs_auart_request_port()  argument
394 static int mxs_auart_verify_port(struct uart_port *u,  in mxs_auart_verify_port()  argument
397 	if (u->type != PORT_UNKNOWN && u->type != PORT_IMX)  in mxs_auart_verify_port()
402 static void mxs_auart_config_port(struct uart_port *u, int flags)  in mxs_auart_config_port()  argument
406 static const char *mxs_auart_type(struct uart_port *u)  in mxs_auart_type()  argument
408 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_type()
413 static void mxs_auart_release_port(struct uart_port *u)  in mxs_auart_release_port()  argument
417 static void mxs_auart_set_mctrl(struct uart_port *u, unsigned mctrl)  in mxs_auart_set_mctrl()  argument
419 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_set_mctrl()
421 	u32 ctrl = readl(u->membase + AUART_CTRL2);  in mxs_auart_set_mctrl()
425 		if (uart_cts_enabled(u))  in mxs_auart_set_mctrl()
431 	writel(ctrl, u->membase + AUART_CTRL2);  in mxs_auart_set_mctrl()
459 static u32 mxs_auart_get_mctrl(struct uart_port *u)  in mxs_auart_get_mctrl()  argument
461 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_get_mctrl()
462 	u32 stat = readl(u->membase + AUART_STAT);  in mxs_auart_get_mctrl()
658 static void mxs_auart_settermios(struct uart_port *u,  in mxs_auart_settermios()  argument
662 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_settermios()
669 	ctrl2 = readl(u->membase + AUART_CTRL2);  in mxs_auart_settermios()
698 	u->read_status_mask = 0;  in mxs_auart_settermios()
701 		u->read_status_mask |= AUART_STAT_PERR;  in mxs_auart_settermios()
703 		u->read_status_mask |= AUART_STAT_BERR;  in mxs_auart_settermios()
708 	u->ignore_status_mask = 0;  in mxs_auart_settermios()
710 		u->ignore_status_mask |= AUART_STAT_PERR;  in mxs_auart_settermios()
712 		u->ignore_status_mask |= AUART_STAT_BERR;  in mxs_auart_settermios()
718 			u->ignore_status_mask |= AUART_STAT_OERR;  in mxs_auart_settermios()
757 	baud_min = DIV_ROUND_UP(u->uartclk * 32, AUART_LINECTRL_BAUD_DIV_MAX);  in mxs_auart_settermios()
758 	baud_max = u->uartclk * 32 / AUART_LINECTRL_BAUD_DIV_MIN;  in mxs_auart_settermios()
759 	baud = uart_get_baud_rate(u, termios, old, baud_min, baud_max);  in mxs_auart_settermios()
760 	div = u->uartclk * 32 / baud;  in mxs_auart_settermios()
764 	writel(ctrl, u->membase + AUART_LINECTRL);  in mxs_auart_settermios()
765 	writel(ctrl2, u->membase + AUART_CTRL2);  in mxs_auart_settermios()
767 	uart_update_timeout(u, termios->c_cflag, baud);  in mxs_auart_settermios()
775 					u->membase + AUART_INTR_CLR);  in mxs_auart_settermios()
783 	if (UART_ENABLE_MS(u, termios->c_cflag))  in mxs_auart_settermios()
784 		mxs_auart_enable_ms(u);  in mxs_auart_settermios()
786 		mxs_auart_disable_ms(u);  in mxs_auart_settermios()
849 static void mxs_auart_reset_deassert(struct uart_port *u)  in mxs_auart_reset_deassert()  argument
854 	writel(AUART_CTRL0_SFTRST, u->membase + AUART_CTRL0_CLR);  in mxs_auart_reset_deassert()
857 		reg = readl(u->membase + AUART_CTRL0);  in mxs_auart_reset_deassert()
862 	writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);  in mxs_auart_reset_deassert()
865 static void mxs_auart_reset_assert(struct uart_port *u)  in mxs_auart_reset_assert()  argument
870 	reg = readl(u->membase + AUART_CTRL0);  in mxs_auart_reset_assert()
875 	writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);  in mxs_auart_reset_assert()
876 	writel(AUART_CTRL0_SFTRST, u->membase + AUART_CTRL0_SET);  in mxs_auart_reset_assert()
879 		reg = readl(u->membase + AUART_CTRL0);  in mxs_auart_reset_assert()
886 	dev_err(u->dev, "Failed to reset the unit.");  in mxs_auart_reset_assert()
889 static int mxs_auart_startup(struct uart_port *u)  in mxs_auart_startup()  argument
892 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_startup()
898 	if (uart_console(u)) {  in mxs_auart_startup()
899 		writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);  in mxs_auart_startup()
902 		mxs_auart_reset_assert(u);  in mxs_auart_startup()
903 		mxs_auart_reset_deassert(u);  in mxs_auart_startup()
906 	writel(AUART_CTRL2_UARTEN, u->membase + AUART_CTRL2_SET);  in mxs_auart_startup()
909 			u->membase + AUART_INTR);  in mxs_auart_startup()
912 	u->fifosize = MXS_AUART_FIFO_SIZE;  in mxs_auart_startup()
918 	writel(AUART_LINECTRL_FEN, u->membase + AUART_LINECTRL_SET);  in mxs_auart_startup()
927 static void mxs_auart_shutdown(struct uart_port *u)  in mxs_auart_shutdown()  argument
929 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_shutdown()
931 	mxs_auart_disable_ms(u);  in mxs_auart_shutdown()
936 	if (uart_console(u)) {  in mxs_auart_shutdown()
937 		writel(AUART_CTRL2_UARTEN, u->membase + AUART_CTRL2_CLR);  in mxs_auart_shutdown()
939 				u->membase + AUART_INTR_CLR);  in mxs_auart_shutdown()
940 		writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_SET);  in mxs_auart_shutdown()
942 		mxs_auart_reset_assert(u);  in mxs_auart_shutdown()
948 static unsigned int mxs_auart_tx_empty(struct uart_port *u)  in mxs_auart_tx_empty()  argument
950 	if ((readl(u->membase + AUART_STAT) &  in mxs_auart_tx_empty()
957 static void mxs_auart_start_tx(struct uart_port *u)  in mxs_auart_start_tx()  argument
959 	struct mxs_auart_port *s = to_auart_port(u);  in mxs_auart_start_tx()
962 	writel(AUART_CTRL2_TXE, u->membase + AUART_CTRL2_SET);  in mxs_auart_start_tx()
967 static void mxs_auart_stop_tx(struct uart_port *u)  in mxs_auart_stop_tx()  argument
969 	writel(AUART_CTRL2_TXE, u->membase + AUART_CTRL2_CLR);  in mxs_auart_stop_tx()
972 static void mxs_auart_stop_rx(struct uart_port *u)  in mxs_auart_stop_rx()  argument
974 	writel(AUART_CTRL2_RXE, u->membase + AUART_CTRL2_CLR);  in mxs_auart_stop_rx()
977 static void mxs_auart_break_ctl(struct uart_port *u, int ctl)  in mxs_auart_break_ctl()  argument
981 			     u->membase + AUART_LINECTRL_SET);  in mxs_auart_break_ctl()
984 			     u->membase + AUART_LINECTRL_CLR);  in mxs_auart_break_ctl()