arch/mips/include/asm/dec/kn02xa.h

   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
  77 struct pt_regs;
  78
  79 extern void dec_kn02xa_be_init(void);
  80 extern int dec_kn02xa_be_handler(struct pt_regs *regs, int is_fixup);
  81 extern irqreturn_t dec_kn02xa_be_interrupt(int irq, void *dev_id);
  82 #endif
  83
  84 #endif /* __ASM_MIPS_DEC_KN02XA_H */