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/*
* This include file contains all board IO definitions.
*
* generic sh4 BSP
*
* Copyright (C) 2001 OKTET Ltd., St.-Petersburg, Russia
* Author: Victor V. Vengerov <vvv@oktet.ru>
*
* Based on work:
* Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
*
* COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
*
* COPYRIGHT (c) 1998-2001.
* 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.OARcorp.com/rtems/license.html.
*
* Minor adaptations for sh2 by:
* John M. Mills (jmills@tga.com)
* TGA Technologies, Inc.
* 100 Pinnacle Way, Suite 140
* Norcross, GA 30071 U.S.A.
*
* This modified file may be copied and distributed in accordance
* the above-referenced license. It is provided for critique and
* developmental purposes without any warranty nor representation
* by the authors or by TGA Technologies.
*
* $Id$
*/
#ifndef __gensh4_h
#define __gensh4_h
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems.h>
#include <clockdrv.h>
#include <console.h>
#include "rtems/score/sh7750_regs.h"
/*
* confdefs.h overrides for this BSP:
* - number of termios serial ports (defaults to 1)
* - Interrupt stack space is not minimum if defined.
*/
/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
#define CONFIGURE_INTERRUPT_STACK_MEMORY (4 * 1024)
/*
* Define the time limits for RTEMS Test Suite test durations.
* Long test and short test duration limits are provided. These
* values are in seconds and need to be converted to ticks for the
* application.
*
*/
#define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */
#define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */
/*
* Stuff for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 1
#ifndef SH7750_EVT_WDT_ITI
# error "..."
#endif
#define Install_tm27_vector( handler ) \
{ \
rtems_isr_entry old_handler; \
rtems_status_code status; \
status = rtems_interrupt_catch( (handler), \
SH7750_EVT_TO_NUM(SH7750_EVT_WDT_ITI), &old_handler); \
if (status != RTEMS_SUCCESSFUL) \
printf("Status of rtems_interrupt_catch = %d", status); \
}
#define Cause_tm27_intr() \
{ \
*(volatile rtems_unsigned16 *)SH7750_IPRB |= 0xf000; \
*(volatile rtems_unsigned16 *)SH7750_WTCSR = SH7750_WTCSR_KEY; \
*(volatile rtems_unsigned16 *)SH7750_WTCNT = SH7750_WTCNT_KEY | 0xfe; \
*(volatile rtems_unsigned16 *)SH7750_WTCSR = \
SH7750_WTCSR_KEY | SH7750_WTCSR_TME; \
}
#define Clear_tm27_intr() \
{ \
*(volatile rtems_unsigned16 *)SH7750_WTCSR = SH7750_WTCSR_KEY; \
}
#define Lower_tm27_intr() \
{ \
sh_set_interrupt_level((SH7750_IPRB & 0xf000) << SH4_SR_IMASK_S); \
}
/* Constants */
/*
* Simple spin delay in microsecond units for device drivers.
* This is very dependent on the clock speed of the target.
*/
#define delay( microseconds ) CPU_delay(microseconds)
#define sh_delay( microseconds ) CPU_delay( microseconds )
/*
* Defined in the linker script 'linkcmds'
*/
extern unsigned32 HeapStart ;
extern unsigned32 HeapEnd ;
extern unsigned32 WorkSpaceStart ;
extern unsigned32 WorkSpaceEnd ;
extern void *CPU_Interrupt_stack_low ;
extern void *CPU_Interrupt_stack_high ;
/*
* This variable is nesessary for console driver.
*/
extern rtems_unsigned32 SH4_CPU_HZ_Frequency;
/*
* Defined in start.S
*/
extern unsigned32 boot_mode;
#define SH4_BOOT_MODE_FLASH 0
#define SH4_BOOT_MODE_IPL 1
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration;
extern void bsp_cleanup( void );
/*
* Device Driver Table Entries
*/
/*
* We redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console
*/
#undef CONSOLE_DRIVER_TABLE_ENTRY
#define CONSOLE_DRIVER_TABLE_ENTRY \
{ console_initialize, console_open, console_close, \
console_read, console_write, console_control }
/*
* NOTE: Use the standard Clock driver entry
*/
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
|
