leon.h

一个航天航空用的Sparc处理器（配美国欧洲宇航局用的R_tems嵌入式操作系统）的VHDL源代码

#include "config.h"

/* control structure */

#ifndef __ASSEMBLER__

struct lregs {
	volatile unsigned int memcfg1;		/* 0x00 */
	volatile unsigned int memcfg2;
	volatile unsigned int edacctrl;
	volatile unsigned int failaddr;
	volatile unsigned int memstatus;		/* 0x10 */
	volatile unsigned int cachectrl;
	volatile unsigned int powerdown;
	volatile unsigned int writeprot1;
	volatile unsigned int writeprot2;	/* 0x20 */
	volatile unsigned int dummy1;
	volatile unsigned int dummy2;
	volatile unsigned int dummy3;
	volatile unsigned int dummy4;		/* 0x30 */
	volatile unsigned int dummy5;
	volatile unsigned int dummy6;
	volatile unsigned int dummy7;
	volatile unsigned int timercnt1;		/* 0x40 */
	volatile unsigned int timerload1;
	volatile unsigned int timerctrl1;
	volatile unsigned int wdog;
	volatile unsigned int timercnt2;
	volatile unsigned int timerload2;
	volatile unsigned int timerctrl2;
	volatile unsigned int dummy8;
	volatile unsigned int scalercnt;
	volatile unsigned int scalerload;
	volatile unsigned int dummy9;
	volatile unsigned int dummy10;
	volatile unsigned int uartdata1;
	volatile unsigned int uartstatus1;
	volatile unsigned int uartctrl1;
	volatile unsigned int uartscaler1;
	volatile unsigned int uartdata2;
	volatile unsigned int uartstatus2;
	volatile unsigned int uartctrl2;
	volatile unsigned int uartscaler2;
	volatile unsigned int irqmask;
	volatile unsigned int irqpend;
	volatile unsigned int irqforce;
	volatile unsigned int irqclear;
	volatile unsigned int piodata;
	volatile unsigned int piodir;
	volatile unsigned int pioirq;
};


#endif

/* control registers */

#define	PREGS	0x80000000
#define	MCFG1	0x00
#define	MCFG2	0x04
#define	EDAC	0x08
#define	FADDR	0x0c
#define	MSTAT	0x10
#define CCTRL	0x14
#define PWDOWN	0x18
#define WPROT1	0x1C
#define WPROT2	0x20
#define	TCNT0	0x40
#define	TRLD0	0x44
#define	TCTRL0	0x48
#define	TCNT1	0x50
#define	TRLD1	0x54
#define	TCTRL1	0x58
#define	SCNT  	0x60
#define	SRLD  	0x64
#define	UDATA0 	0x70
#define	USTAT0 	0x74
#define	UCTRL0 	0x78
#define	USCAL0 	0x7c
#define	UDATA1 	0x80
#define	USTAT1 	0x84
#define	UCTRL1 	0x88
#define	USCAL1 	0x8c
#define	IMASK	0x90
#define	IPEND	0x94
#define	IFORCE	0x98
#define	ICLEAR	0x9c
#define	IOREG	0xA0
#define	IODIR	0xA4
#define	IOICONF	0xA8

/* ASI codes */

#define ASI_PCI 	0x4
#define ASI_ITAG	0xC
#define ASI_IDATA	0xD
#define ASI_DTAG	0xE
#define ASI_DDATA	0xF

/* memory areas */

#define CRAM	0x40000000
#define RAMEND	0x40000000 + RAMSIZE
#define IOAREA	0x20000000

/* cache settings */
#define ITAGS		(1 << ITAG_BITS)
#define ILINESZ		(1 << ILINEBITS)
#define DTAGS		(1 << DTAG_BITS)
#define DLINESZ		(1 << DLINEBITS)

/* Some bit field masks */

#define CCTRL_FLUSHING_MASK 0x0c000