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|
/*===============================================================*\
| Project: RTEMS generic MPC83xx BSP |
+-----------------------------------------------------------------+
| This file has been adapted from the ep1a BSP to MPC83xx by |
| Thomas Doerfler <Thomas.Doerfler@embedded-brains.de> |
| Copyright (c) 2007 |
| Embedded Brains GmbH |
| Obere Lagerstr. 30 |
| D-82178 Puchheim |
| Germany |
| rtems@embedded-brains.de |
| |
| See the other copyright notice below for the original parts. |
+-----------------------------------------------------------------+
| The license and distribution terms for this file may be |
| found in the file LICENSE in this distribution or at |
| |
| http://www.rtems.com/license/LICENSE. |
| |
+-----------------------------------------------------------------+
| this file contains the DUART access routines |
\*===============================================================*/
/* derived from: */
/*
* This include file contains all console driver definations for the nc16550
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <rtems.h>
#include <bsp.h>
#include "console.h"
typedef struct uart_reg
{
volatile unsigned char reg;
} uartReg;
uint8_t Read_ns16550_register(
uint32_t ulCtrlPort,
uint8_t ucRegNum
)
{
struct uart_reg *p = (struct uart_reg *)ulCtrlPort;
uint8_t ucData;
ucData = p[ucRegNum].reg;
asm volatile("sync");
return ucData;
}
void Write_ns16550_register(
uint32_t ulCtrlPort,
uint8_t ucRegNum,
uint8_t ucData
)
{
struct uart_reg *p = (struct uart_reg *)ulCtrlPort;
p[ucRegNum].reg = ucData;
asm volatile("sync");
}
|
