197 	ns16550_writeb(com_port, \
198 		(unsigned char *)addr - (unsigned char *)com_port, value)
200 	ns16550_readb(com_port, \
201 		(unsigned char *)addr - (unsigned char *)com_port)
216 static void ns16550_setbrg(struct ns16550 *com_port, int baud_divisor)  in ns16550_setbrg()  argument
219 	int lcr_val = serial_in(&com_port->lcr) & ~UART_LCR_BKSE;  in ns16550_setbrg()
221 	serial_out(UART_LCR_BKSE | lcr_val, &com_port->lcr);  in ns16550_setbrg()
222 	serial_out(baud_divisor & 0xff, &com_port->dll);  in ns16550_setbrg()
223 	serial_out((baud_divisor >> 8) & 0xff, &com_port->dlm);  in ns16550_setbrg()
224 	serial_out(lcr_val, &com_port->lcr);  in ns16550_setbrg()
227 void ns16550_init(struct ns16550 *com_port, int baud_divisor)  in ns16550_init()  argument
236 	if ((serial_in(&com_port->lsr) & (UART_LSR_TEMT | UART_LSR_THRE))  in ns16550_init()
239 			ns16550_setbrg(com_port, baud_divisor);  in ns16550_init()
242 			const int dll = serial_in(&com_port->dll);  in ns16550_init()
243 			const int dlm = serial_in(&com_port->dlm);  in ns16550_init()
245 			ns16550_setbrg(com_port, divisor);  in ns16550_init()
247 		serial_out(0, &com_port->mdr1);  in ns16550_init()
251 	while (!(serial_in(&com_port->lsr) & UART_LSR_TEMT))  in ns16550_init()
254 	serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);  in ns16550_init()
256 	serial_out(0x7, &com_port->mdr1);	/* mode select reset TL16C750*/  in ns16550_init()
259 	serial_out(UART_MCRVAL, &com_port->mcr);  in ns16550_init()
260 	serial_out(ns16550_getfcr(com_port), &com_port->fcr);  in ns16550_init()
262 	serial_out(UART_LCRVAL, &com_port->lcr);  in ns16550_init()
264 		ns16550_setbrg(com_port, baud_divisor);  in ns16550_init()
268 	serial_out(0, &com_port->mdr1);  in ns16550_init()
271 	serial_out(UART_REG_VAL_PWREMU_MGMT_UART_ENABLE, &com_port->regC);  in ns16550_init()
276 void ns16550_reinit(struct ns16550 *com_port, int baud_divisor)  in ns16550_reinit()  argument
278 	serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);  in ns16550_reinit()
279 	ns16550_setbrg(com_port, 0);  in ns16550_reinit()
280 	serial_out(UART_MCRVAL, &com_port->mcr);  in ns16550_reinit()
281 	serial_out(ns16550_getfcr(com_port), &com_port->fcr);  in ns16550_reinit()
282 	ns16550_setbrg(com_port, baud_divisor);  in ns16550_reinit()
286 void ns16550_putc(struct ns16550 *com_port, char c)  in ns16550_putc()  argument
288 	while ((serial_in(&com_port->lsr) & UART_LSR_THRE) == 0)  in ns16550_putc()
290 	serial_out(c, &com_port->thr);  in ns16550_putc()
303 char ns16550_getc(struct ns16550 *com_port)  in ns16550_getc()  argument
305 	while ((serial_in(&com_port->lsr) & UART_LSR_DR) == 0) {  in ns16550_getc()
312 	return serial_in(&com_port->rbr);  in ns16550_getc()
315 int ns16550_tstc(struct ns16550 *com_port)  in ns16550_tstc()  argument
317 	return (serial_in(&com_port->lsr) & UART_LSR_DR) != 0;  in ns16550_tstc()
328 	struct ns16550 *com_port = (struct ns16550 *)CONFIG_DEBUG_UART_BASE;  in _debug_uart_init()  local
337 	baud_divisor = ns16550_calc_divisor(com_port, CONFIG_DEBUG_UART_CLOCK,  in _debug_uart_init()
339 	serial_dout(&com_port->ier, CONFIG_SYS_NS16550_IER);  in _debug_uart_init()
340 	serial_dout(&com_port->mcr, UART_MCRVAL);  in _debug_uart_init()
341 	serial_dout(&com_port->fcr, UART_FCR_DEFVAL);  in _debug_uart_init()
343 	serial_dout(&com_port->lcr, UART_LCR_BKSE | UART_LCRVAL);  in _debug_uart_init()
344 	serial_dout(&com_port->dll, baud_divisor & 0xff);  in _debug_uart_init()
345 	serial_dout(&com_port->dlm, (baud_divisor >> 8) & 0xff);  in _debug_uart_init()
346 	serial_dout(&com_port->lcr, UART_LCRVAL);  in _debug_uart_init()
349 static inline int NS16550_read_baud_divisor(struct ns16550 *com_port)  in NS16550_read_baud_divisor()  argument
353 	serial_dout(&com_port->lcr, UART_LCR_BKSE | UART_LCRVAL);  in NS16550_read_baud_divisor()
354 	ret = serial_din(&com_port->dll) & 0xff;  in NS16550_read_baud_divisor()
355 	ret |= (serial_din(&com_port->dlm) & 0xff) << 8;  in NS16550_read_baud_divisor()
356 	serial_dout(&com_port->lcr, UART_LCRVAL);  in NS16550_read_baud_divisor()
363 	struct ns16550 *com_port = (struct ns16550 *)CONFIG_DEBUG_UART_BASE;  in _debug_uart_putc()  local
365 	while (!(serial_din(&com_port->lsr) & UART_LSR_THRE)) {  in _debug_uart_putc()
367 		if (!NS16550_read_baud_divisor(com_port))  in _debug_uart_putc()
371 	serial_dout(&com_port->thr, ch);  in _debug_uart_putc()
381 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_putc()  local
383 	if (!(serial_in(&com_port->lsr) & UART_LSR_THRE))  in ns16550_serial_putc()
385 	serial_out(ch, &com_port->thr);  in ns16550_serial_putc()
401 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_pending()  local
404 		return (serial_in(&com_port->lsr) & UART_LSR_DR) ? 1 : 0;  in ns16550_serial_pending()
406 		return (serial_in(&com_port->lsr) & UART_LSR_THRE) ? 0 : 1;  in ns16550_serial_pending()
411 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_getc()  local
413 	if (!(serial_in(&com_port->lsr) & UART_LSR_DR))  in ns16550_serial_getc()
416 	return serial_in(&com_port->rbr);  in ns16550_serial_getc()
421 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_setbrg()  local
422 	struct ns16550_plat *plat = com_port->plat;  in ns16550_serial_setbrg()
425 	clock_divisor = ns16550_calc_divisor(com_port, plat->clock, baudrate);  in ns16550_serial_setbrg()
427 	ns16550_setbrg(com_port, clock_divisor);  in ns16550_serial_setbrg()
434 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_setconfig()  local
461 	serial_out(lcr_val, &com_port->lcr);  in ns16550_serial_setconfig()
468 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_getinfo()  local
469 	struct ns16550_plat *plat = com_port->plat;  in ns16550_serial_getinfo()
503 	struct ns16550 *const com_port = dev_get_priv(dev);  in ns16550_serial_probe()  local
523 	com_port->plat = dev_get_plat(dev);  in ns16550_serial_probe()
524 	ns16550_init(com_port, -1);  in ns16550_serial_probe()