[linux.git] / arch / mips / jz4740 / serial.c

/*
 *  Copyright (C) 2010, Lars-Peter Clausen <[email protected]>
 *  JZ4740 serial support
 *
 *  This program is free software; you can redistribute	 it and/or modify it
 *  under  the terms of	 the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the	License, or (at your
 *  option) any later version.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <linux/io.h>
#include <linux/serial_core.h>
#include <linux/serial_reg.h>

void jz4740_serial_out(struct uart_port *p, int offset, int value)
{
	switch (offset) {
	case UART_FCR:
		value |= 0x10; /* Enable uart module */
		break;
	case UART_IER:
		value |= (value & 0x4) << 2;
		break;
	default:
		break;
	}
	writeb(value, p->membase + (offset << p->regshift));
}
Commit	Line	Data
c3b9566d LPC	1	/*
	2	* Copyright (C) 2010, Lars-Peter Clausen <[email protected]>
	3	* JZ4740 serial support
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License as published by the
	7	* Free Software Foundation; either version 2 of the License, or (at your
	8	* option) any later version.
	9	*
	10	* You should have received a copy of the GNU General Public License along
	11	* with this program; if not, write to the Free Software Foundation, Inc.,
	12	* 675 Mass Ave, Cambridge, MA 02139, USA.
	13	*
	14	*/
	15
	16	#include <linux/io.h>
	17	#include <linux/serial_core.h>
	18	#include <linux/serial_reg.h>
	19
	20	void jz4740_serial_out(struct uart_port *p, int offset, int value)
	21	{
	22	switch (offset) {
	23	case UART_FCR:
	24	value \|= 0x10; /* Enable uart module */
	25	break;
	26	case UART_IER:
	27	value \|= (value & 0x4) << 2;
	28	break;
	29	default:
	30	break;
	31	}
	32	writeb(value, p->membase + (offset << p->regshift));
	33	}