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/*
* include/asm-v850/sim85e2.h -- Machine-dependent defs for
* V850E2 RTL simulator
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_SIM85E2_H__
#define __V850_SIM85E2_H__
#include <asm/v850e2.h> /* Based on V850E2 core. */
/* Various memory areas supported by the simulator.
These should match the corresponding definitions in the linker script. */
/* `instruction RAM'; instruction fetches are much faster from IRAM than
from DRAM. */
#define IRAM_ADDR 0
#define IRAM_SIZE 0x00100000 /* 1MB */
/* `data RAM', below and contiguous with the I/O space.
Data fetches are much faster from DRAM than from IRAM. */
#define DRAM_ADDR 0xfff00000
#define DRAM_SIZE 0x000ff000 /* 1020KB */
/* `external ram'. Unlike the above RAM areas, this memory is cached,
so both instruction and data fetches should be (mostly) fast --
however, currently only write-through caching is supported, so writes
to ERAM will be slow. */
#define ERAM_ADDR 0x00100000
#define ERAM_SIZE 0x07f00000 /* 127MB (max) */
/* Dynamic RAM; uses memory controller. */
#define SDRAM_ADDR 0x10000000
#define SDRAM_SIZE 0x01000000 /* 16MB */
/* Simulator specific control registers. */
/* NOTHAL controls whether the simulator will stop at a `halt' insn. */
#define SIM85E2_NOTHAL_ADDR 0xffffff22
#define SIM85E2_NOTHAL (*(volatile u8 *)SIM85E2_NOTHAL_ADDR)
/* The simulator will stop N cycles after N is written to SIMFIN. */
#define SIM85E2_SIMFIN_ADDR 0xffffff24
#define SIM85E2_SIMFIN (*(volatile u16 *)SIM85E2_SIMFIN_ADDR)
/* For <asm/irq.h> */
#define NUM_CPU_IRQS 64
/* For <asm/page.h> */
#define PAGE_OFFSET SDRAM_ADDR
/* For <asm/entry.h> */
/* `R0 RAM', used for a few miscellaneous variables that must be accessible
using a load instruction relative to R0. The sim85e2 simulator
actually puts 1020K of RAM from FFF00000 to FFFFF000, so we arbitarily
choose a small portion at the end of that. */
#define R0_RAM_ADDR 0xFFFFE000
/* For <asm/param.h> */
#ifndef HZ
#define HZ 24 /* Minimum supported frequency. */
#endif
#endif /* __V850_SIM85E2_H__ */
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