diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen83xx/console/ns16550cfg.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/gen83xx/console/ns16550cfg.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/console/ns16550cfg.c b/c/src/lib/libbsp/powerpc/gen83xx/console/ns16550cfg.c new file mode 100644 index 0000000000..2a2ab64138 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/gen83xx/console/ns16550cfg.c @@ -0,0 +1,67 @@ +/*===============================================================*\ +| 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"); +} |