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kn02xa.h

/*
 * Hardware info common to DECstation 5000/1xx systems (otherwise
 * known as 3min or kn02ba) and Personal DECstations 5000/xx ones
 * (otherwise known as maxine or kn02ca).
 *
 * 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.
 *
 * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
 * are by courtesy of Chris Fraser.
 * Copyright (C) 2000, 2002, 2003, 2005  Maciej W. Rozycki
 *
 * These are addresses which have to be known early in the boot process.
 * For other addresses refer to tc.h, ioasic_addrs.h and friends.
 */
#ifndef __ASM_MIPS_DEC_KN02XA_H
#define __ASM_MIPS_DEC_KN02XA_H

#include <asm/dec/ioasic_addrs.h>

#define KN02XA_SLOT_BASE      0x1c000000

/*
 * Memory control ASIC registers.
 */
#define KN02XA_MER            0x0c400000  /* memory error register */
#define KN02XA_MSR            0x0c800000  /* memory size register */

/*
 * CPU control ASIC registers.
 */
#define KN02XA_MEM_CONF       0x0e000000  /* write timeout config */
#define KN02XA_EAR            0x0e000004  /* error address register */
#define KN02XA_BOOT0          0x0e000008  /* boot 0 register */
#define KN02XA_MEM_INTR       0x0e00000c  /* write err IRQ stat & ack */

/*
 * Memory Error Register bits, common definitions.
 * The rest is defined in system-specific headers.
 */
#define KN02XA_MER_RES_28     (0xf<<28)   /* unused */
#define KN02XA_MER_RES_17     (0x3ff<<17) /* unused */
#define KN02XA_MER_PAGERR     (1<<16)           /* 2k page boundary error */
#define KN02XA_MER_TRANSERR   (1<<15)           /* transfer length error */
#define KN02XA_MER_PARDIS     (1<<14)           /* parity error disable */
#define KN02XA_MER_SIZE       (1<<13)           /* r/o mirror of MSR_SIZE */
#define KN02XA_MER_RES_12     (1<<12)           /* unused */
#define KN02XA_MER_BYTERR     (0xf<<8)    /* byte lane error bitmask: */
#define KN02XA_MER_BYTERR_3   (0x8<<8)    /* byte lane #3 */
#define KN02XA_MER_BYTERR_2   (0x4<<8)    /* byte lane #2 */
#define KN02XA_MER_BYTERR_1   (0x2<<8)    /* byte lane #1 */
#define KN02XA_MER_BYTERR_0   (0x1<<8)    /* byte lane #0 */
#define KN02XA_MER_RES_0      (0xff<<0)   /* unused */

/*
 * Memory Size Register bits, common definitions.
 * The rest is defined in system-specific headers.
 */
#define KN02XA_MSR_RES_27     (0x1f<<27)  /* unused */
#define KN02XA_MSR_RES_14     (0x7<<14)   /* unused */
#define KN02XA_MSR_SIZE       (1<<13)           /* 16M/4M stride */
#define KN02XA_MSR_RES_0      (0x1fff<<0) /* unused */

/*
 * Error Address Register bits.
 */
#define KN02XA_EAR_RES_29     (0x7<<29)   /* unused */
#define KN02XA_EAR_ADDRESS    (0x7ffffff<<2)    /* address involved */
#define KN02XA_EAR_RES_0      (0x3<<0)    /* unused */


#ifndef __ASSEMBLY__

#include <linux/interrupt.h>

struct pt_regs;

extern void dec_kn02xa_be_init(void);
extern int dec_kn02xa_be_handler(struct pt_regs *regs, int is_fixup);
extern irqreturn_t dec_kn02xa_be_interrupt(int irq, void *dev_id);
#endif

#endif /* __ASM_MIPS_DEC_KN02XA_H */

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