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- /*
- * include/asm-v850/fpga85e2c.h -- Machine-dependent defs for
- * FPGA implementation of V850E2/NA85E2C
- *
- * 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_FPGA85E2C_H__
- #define __V850_FPGA85E2C_H__
-
- #include <asm/v850e2.h>
- #include <asm/clinkage.h>
-
-
- #define CPU_MODEL "v850e2/fpga85e2c"
- #define CPU_MODEL_LONG "NEC V850E2/NA85E2C"
- #define PLATFORM "fpga85e2c"
- #define PLATFORM_LONG "NA85E2C FPGA implementation"
-
-
- /* `external ram'. */
- #define ERAM_ADDR 0
- #define ERAM_SIZE 0x00100000 /* 1MB */
-
-
- /* FPGA specific control registers. */
-
- /* Writing a non-zero value to FLGREG(0) will signal the controlling CPU
- to stop execution. */
- #define FLGREG_ADDR(n) (0xFFE80100 + 2*(n))
- #define FLGREG(n) (*(volatile unsigned char *)FLGREG_ADDR (n))
- #define FLGREG_NUM 2
-
- #define CSDEV_ADDR(n) (0xFFE80110 + 2*(n))
- #define CSDEV(n) (*(volatile unsigned char *)CSDEV_ADDR (n))
-
-
- /* Timer interrupts 0-3, interrupt at intervals from CLK/4096 to CLK/16384. */
- #define IRQ_RPU(n) (60 + (n))
- #define IRQ_RPU_NUM 4
-
- /* For <asm/irq.h> */
- #define NUM_CPU_IRQS 64
-
-
- /* General-purpose timer. */
- /* control/status register (can only be read/written via bit insns) */
- #define RPU_GTMC_ADDR 0xFFFFFB00
- #define RPU_GTMC (*(volatile unsigned char *)RPU_GTMC_ADDR)
- #define RPU_GTMC_CE_BIT 7 /* clock enable (control) */
- #define RPU_GTMC_OV_BIT 6 /* overflow (status) */
- #define RPU_GTMC_CLK_BIT 1 /* 0 = .5 MHz CLK, 1 = 1 Mhz (control) */
- /* 32-bit count (8 least-significant bits are always zero). */
- #define RPU_GTM_ADDR 0xFFFFFB28
- #define RPU_GTM (*(volatile unsigned long *)RPU_GTMC_ADDR)
-
-
- /* For <asm/page.h> */
- #define PAGE_OFFSET ERAM_ADDR /* minimum allocatable address */
-
-
- /* For <asm/entry.h> */
- /* `R0 RAM', used for a few miscellaneous variables that must be accessible
- using a load instruction relative to R0. The FPGA implementation
- actually has no on-chip RAM, so we use part of main ram just after the
- interrupt vectors. */
- #ifdef __ASSEMBLY__
- #define R0_RAM_ADDR lo(C_SYMBOL_NAME(_r0_ram))
- #else
- extern char _r0_ram;
- #define R0_RAM_ADDR ((unsigned long)&_r0_ram);
- #endif
-
-
- /* For <asm/param.h> */
- #ifndef HZ
- #define HZ 122 /* actually, 8.192ms ticks =~ 122.07 */
- #endif
-
-
- #endif /* __V850_FPGA85E2C_H__ */
-