26 static int scif_rxfill(struct uart_port *port)  in scif_rxfill()  argument
28 	return sci_in(port, SCRFDR) & 0xff;  in scif_rxfill()
31 static int scif_rxfill(struct uart_port *port)  in scif_rxfill()  argument
33 	if ((port->mapbase == 0xffe00000) ||  in scif_rxfill()
34 	    (port->mapbase == 0xffe08000)) {  in scif_rxfill()
36 		return sci_in(port, SCRFDR) & 0xff;  in scif_rxfill()
39 		return sci_in(port, SCFDR) & SCIF2_RFDC_MASK;  in scif_rxfill()
43 static int scif_rxfill(struct uart_port *port)  in scif_rxfill()  argument
45 	if (port->type == PORT_SCIFA)  in scif_rxfill()
46 		return sci_in(port, SCFDR) & SCIF_RFDC_MASK;  in scif_rxfill()
48 		return sci_in(port, SCRFDR);  in scif_rxfill()
51 static int scif_rxfill(struct uart_port *port)  in scif_rxfill()  argument
53 	return sci_in(port, SCFDR) & SCIF_RFDC_MASK;  in scif_rxfill()
57 static void sh_serial_init_generic(struct uart_port *port)  in sh_serial_init_generic()  argument
59 	sci_out(port, SCSCR , SCSCR_INIT(port));  in sh_serial_init_generic()
60 	sci_out(port, SCSCR , SCSCR_INIT(port));  in sh_serial_init_generic()
61 	sci_out(port, SCSMR, 0);  in sh_serial_init_generic()
62 	sci_out(port, SCSMR, 0);  in sh_serial_init_generic()
63 	sci_out(port, SCFCR, SCFCR_RFRST|SCFCR_TFRST);  in sh_serial_init_generic()
64 	sci_in(port, SCFCR);  in sh_serial_init_generic()
65 	sci_out(port, SCFCR, 0);  in sh_serial_init_generic()
69 sh_serial_setbrg_generic(struct uart_port *port, int clk, int baudrate)  in sh_serial_setbrg_generic()  argument
71 	if (port->clk_mode == EXT_CLK) {  in sh_serial_setbrg_generic()
73 		sci_out(port, DL, dl);  in sh_serial_setbrg_generic()
77 		sci_out(port, SCBRR, SCBRR_VALUE(baudrate, clk));  in sh_serial_setbrg_generic()
81 static void handle_error(struct uart_port *port)  in handle_error()  argument
83 	sci_in(port, SCxSR);  in handle_error()
84 	sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));  in handle_error()
85 	sci_in(port, SCLSR);  in handle_error()
86 	sci_out(port, SCLSR, 0x00);  in handle_error()
89 static int serial_raw_putc(struct uart_port *port, const char c)  in serial_raw_putc()  argument
92 	if (!(sci_in(port, SCxSR) & SCxSR_TEND(port)))  in serial_raw_putc()
95 	sci_out(port, SCxTDR, c);  in serial_raw_putc()
96 	sci_out(port, SCxSR, sci_in(port, SCxSR) & ~SCxSR_TEND(port));  in serial_raw_putc()
101 static int serial_rx_fifo_level(struct uart_port *port)  in serial_rx_fifo_level()  argument
103 	return scif_rxfill(port);  in serial_rx_fifo_level()
106 static int sh_serial_tstc_generic(struct uart_port *port)  in sh_serial_tstc_generic()  argument
108 	if (sci_in(port, SCxSR) & SCIF_ERRORS) {  in sh_serial_tstc_generic()
109 		handle_error(port);  in sh_serial_tstc_generic()
113 	return serial_rx_fifo_level(port) ? 1 : 0;  in sh_serial_tstc_generic()
116 static int serial_getc_check(struct uart_port *port)  in serial_getc_check()  argument
120 	status = sci_in(port, SCxSR);  in serial_getc_check()
123 		handle_error(port);  in serial_getc_check()
124 	if (sci_in(port, SCLSR) & SCxSR_ORER(port))  in serial_getc_check()
125 		handle_error(port);  in serial_getc_check()
126 	return status & (SCIF_DR | SCxSR_RDxF(port));  in serial_getc_check()
129 static int sh_serial_getc_generic(struct uart_port *port)  in sh_serial_getc_generic()  argument
134 	if (!serial_getc_check(port))  in sh_serial_getc_generic()
137 	ch = sci_in(port, SCxRDR);  in sh_serial_getc_generic()
138 	status = sci_in(port, SCxSR);  in sh_serial_getc_generic()
140 	sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));  in sh_serial_getc_generic()
143 		handle_error(port);  in sh_serial_getc_generic()
145 	if (sci_in(port, SCLSR) & SCxSR_ORER(port))  in sh_serial_getc_generic()
146 		handle_error(port);  in sh_serial_getc_generic()
298 	struct uart_port *port = &sh_sci;  in sh_serial_setbrg()  local
300 	sh_serial_setbrg_generic(port, CONFIG_SH_SCIF_CLK_FREQ, gd->baudrate);  in sh_serial_setbrg()
305 	struct uart_port *port = &sh_sci;  in sh_serial_init()  local
307 	sh_serial_init_generic(port);  in sh_serial_init()
315 	struct uart_port *port = &sh_sci;  in sh_serial_putc()  local
319 			if  (serial_raw_putc(port, '\r') != -EAGAIN)  in sh_serial_putc()
324 		if  (serial_raw_putc(port, c) != -EAGAIN)  in sh_serial_putc()
331 	struct uart_port *port = &sh_sci;  in sh_serial_tstc()  local
333 	return sh_serial_tstc_generic(port);  in sh_serial_tstc()
338 	struct uart_port *port = &sh_sci;  in sh_serial_getc()  local
342 		ch = sh_serial_getc_generic(port);  in sh_serial_getc()