Subversion Repositories openrisc_2011-10-31

/* OR1K support defines

   Copyright (C) 2011, ORSoC AB

   Copyright (C) 2008, 2010 Embecosm Limited

   Contributor Julius Baxter  <julius.baxter@orsoc.se>

   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>

   This file is part of Newlib.

   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 3 of the License, or (at your option)

   any later version.

   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.  See the GNU General Public License for

   more details.

   You should have received a copy of the GNU General Public License along

   with this program.  If not, see <http://www.gnu.org/licenses/>.            */

/* -------------------------------------------------------------------------- */

/* This program is commented throughout in a fashion suitable for processing

   with Doxygen.                                                              */

/* -------------------------------------------------------------------------- */

/* This machine configuration matches the Or1ksim configuration file in this

   directory. */

#ifndef OR1K_NEWLIB_SUPPORT__H

#define OR1K_NEWLIB_SUPPORT__H

/*! External symbols from each board's object file */

extern unsigned long _board_clk_freq;

extern unsigned long _board_uart_base;

extern unsigned long _board_uart_baud;

extern unsigned long _board_uart_irq;

/*! Check if board has UART - test base address */

#define BOARD_HAS_UART (_board_uart_base)

/*! l.nop constants */

#define NOP_NOP          0x0000      /* Normal nop instruction */

#define NOP_EXIT         0x0001      /* End of simulation */

#define NOP_REPORT       0x0002      /* Simple report */

/*#define NOP_PRINTF       0x0003       Simprintf instruction (obsolete)*/

#define NOP_PUTC         0x0004      /* JPB: Simputc instruction */

#define NOP_CNT_RESET    0x0005      /* Reset statistics counters */

#define NOP_GET_TICKS    0x0006      /* JPB: Get # ticks running */

#define NOP_GET_PS       0x0007      /* JPB: Get picosecs/cycle */

#define NOP_REPORT_FIRST 0x0400      /* Report with number */

#define NOP_REPORT_LAST  0x03ff      /* Report with number */

/*! Register access macro */

#define REG8(add) *((volatile unsigned char *) (add))

#define REG16(add) *((volatile unsigned short *) (add))

#define REG32(add) *((volatile unsigned long *) (add))

/*! Interrupt control function prototypes */

void or1k_interrupt_handler_add(int, void(*)(void*));

void or1k_interrupt_enable(int);

void or1k_interrupt_disable(int);

/*! Exception handler insertion prototype */

void or1k_exception_handler_add(int, void (*)(void));

/*! SPR access prototypes */

void  or1k_mtspr (unsigned long int  spr,

                    unsigned long int  value);

unsigned long int  or1k_mfspr (unsigned long int  spr);

/*! Simulator prototypes */

void or1k_report (unsigned long int  value);

/*! Cache control prototypes */

void or1k_icache_enable(void);

void or1k_icache_disable(void);

void or1k_icache_flush(unsigned long);

void or1k_dcache_enable(void);

void or1k_dcache_disable(void);

void or1k_dcache_flush(unsigned long);

/*! MMU control prototypes */

void or1k_immu_enable(void);

void or1k_immu_disable(void);

void or1k_dmmu_enable(void);

void or1k_dmmu_disable(void);

/*! Timer prototypes */

void or1k_timer_init(unsigned int hz);

void or1k_timer_enable(void);

void or1k_timer_disable(void);

unsigned long or1k_timer_get_ticks(void);

void or1k_timer_reset_ticks(void);

/*! Utility function prototypes */

unsigned long int or1k_rand(void);

#endif  /* OR1K_NEWLIB_SUPPORT__H */