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/*
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
* 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));
}
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