linux/arch/mips/include/asm/dec/kn02xa.h
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   1/*
   2 * Hardware info common to DECstation 5000/1xx systems (otherwise
   3 * known as 3min or kn02ba) and Personal DECstations 5000/xx ones
   4 * (otherwise known as maxine or kn02ca).
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 *
  10 * Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
  11 * are by courtesy of Chris Fraser.
  12 * Copyright (C) 2000, 2002, 2003, 2005  Maciej W. Rozycki
  13 *
  14 * These are addresses which have to be known early in the boot process.
  15 * For other addresses refer to tc.h, ioasic_addrs.h and friends.
  16 */
  17#ifndef __ASM_MIPS_DEC_KN02XA_H
  18#define __ASM_MIPS_DEC_KN02XA_H
  19
  20#include <asm/dec/ioasic_addrs.h>
  21
  22#define KN02XA_SLOT_BASE        0x1c000000
  23
  24/*
  25 * Memory control ASIC registers.
  26 */
  27#define KN02XA_MER              0x0c400000      /* memory error register */
  28#define KN02XA_MSR              0x0c800000      /* memory size register */
  29
  30/*
  31 * CPU control ASIC registers.
  32 */
  33#define KN02XA_MEM_CONF         0x0e000000      /* write timeout config */
  34#define KN02XA_EAR              0x0e000004      /* error address register */
  35#define KN02XA_BOOT0            0x0e000008      /* boot 0 register */
  36#define KN02XA_MEM_INTR         0x0e00000c      /* write err IRQ stat & ack */
  37
  38/*
  39 * Memory Error Register bits, common definitions.
  40 * The rest is defined in system-specific headers.
  41 */
  42#define KN02XA_MER_RES_28       (0xf<<28)       /* unused */
  43#define KN02XA_MER_RES_17       (0x3ff<<17)     /* unused */
  44#define KN02XA_MER_PAGERR       (1<<16)         /* 2k page boundary error */
  45#define KN02XA_MER_TRANSERR     (1<<15)         /* transfer length error */
  46#define KN02XA_MER_PARDIS       (1<<14)         /* parity error disable */
  47#define KN02XA_MER_SIZE         (1<<13)         /* r/o mirror of MSR_SIZE */
  48#define KN02XA_MER_RES_12       (1<<12)         /* unused */
  49#define KN02XA_MER_BYTERR       (0xf<<8)        /* byte lane error bitmask: */
  50#define KN02XA_MER_BYTERR_3     (0x8<<8)        /* byte lane #3 */
  51#define KN02XA_MER_BYTERR_2     (0x4<<8)        /* byte lane #2 */
  52#define KN02XA_MER_BYTERR_1     (0x2<<8)        /* byte lane #1 */
  53#define KN02XA_MER_BYTERR_0     (0x1<<8)        /* byte lane #0 */
  54#define KN02XA_MER_RES_0        (0xff<<0)       /* unused */
  55
  56/*
  57 * Memory Size Register bits, common definitions.
  58 * The rest is defined in system-specific headers.
  59 */
  60#define KN02XA_MSR_RES_27       (0x1f<<27)      /* unused */
  61#define KN02XA_MSR_RES_14       (0x7<<14)       /* unused */
  62#define KN02XA_MSR_SIZE         (1<<13)         /* 16M/4M stride */
  63#define KN02XA_MSR_RES_0        (0x1fff<<0)     /* unused */
  64
  65/*
  66 * Error Address Register bits.
  67 */
  68#define KN02XA_EAR_RES_29       (0x7<<29)       /* unused */
  69#define KN02XA_EAR_ADDRESS      (0x7ffffff<<2)  /* address involved */
  70#define KN02XA_EAR_RES_0        (0x3<<0)        /* unused */
  71
  72
  73#ifndef __ASSEMBLY__
  74
  75#include <linux/interrupt.h>
  76
  77struct pt_regs;
  78
  79extern void dec_kn02xa_be_init(void);
  80extern int dec_kn02xa_be_handler(struct pt_regs *regs, int is_fixup);
  81extern irqreturn_t dec_kn02xa_be_interrupt(int irq, void *dev_id);
  82#endif
  83
  84#endif /* __ASM_MIPS_DEC_KN02XA_H */
  85
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