root/arch/mips/include/asm/dec/kn03.h
/*
 * Hardware info about DECstation 5000/2x0 systems (otherwise known as
 * 3max+) and DECsystem 5900 systems (otherwise known as bigmax) which
 * differ mechanically but are otherwise identical (both are known as
 * KN03).
 *
 * 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
 */
#ifndef __ASM_MIPS_DEC_KN03_H
#define __ASM_MIPS_DEC_KN03_H

#include <asm/dec/ecc.h>
#include <asm/dec/ioasic_addrs.h>

#define KN03_SLOT_BASE          0x1f800000

/*
 * CPU interrupt bits.
 */
#define KN03_CPU_INR_HALT       6       /* HALT button */
#define KN03_CPU_INR_BUS        5       /* memory, I/O bus read/write errors */
#define KN03_CPU_INR_RES_4      4       /* unused */
#define KN03_CPU_INR_RTC        3       /* DS1287 RTC */
#define KN03_CPU_INR_CASCADE    2       /* I/O ASIC cascade */

/*
 * I/O ASIC interrupt bits.  Star marks denote non-IRQ status bits.
 */
#define KN03_IO_INR_3MAXP       15      /* (*) 3max+/bigmax ID */
#define KN03_IO_INR_NVRAM       14      /* (*) NVRAM clear jumper */
#define KN03_IO_INR_TC2         13      /* TURBOchannel slot #2 */
#define KN03_IO_INR_TC1         12      /* TURBOchannel slot #1 */
#define KN03_IO_INR_TC0         11      /* TURBOchannel slot #0 */
#define KN03_IO_INR_NRMOD       10      /* (*) NRMOD manufacturing jumper */
#define KN03_IO_INR_ASC         9       /* ASC (NCR53C94) SCSI */
#define KN03_IO_INR_LANCE       8       /* LANCE (Am7990) Ethernet */
#define KN03_IO_INR_SCC1        7       /* SCC (Z85C30) serial #1 */
#define KN03_IO_INR_SCC0        6       /* SCC (Z85C30) serial #0 */
#define KN03_IO_INR_RTC         5       /* DS1287 RTC */
#define KN03_IO_INR_PSU         4       /* power supply unit warning */
#define KN03_IO_INR_RES_3       3       /* unused */
#define KN03_IO_INR_ASC_DATA    2       /* SCSI data ready (for PIO) */
#define KN03_IO_INR_PBNC        1       /* ~HALT button debouncer */
#define KN03_IO_INR_PBNO        0       /* HALT button debouncer */


/*
 * Memory Control Register bits.
 */
#define KN03_MCR_RES_16         (0xffff<<16)    /* unused */
#define KN03_MCR_DIAGCHK        (1<<15)         /* diagn/norml ECC reads */
#define KN03_MCR_DIAGGEN        (1<<14)         /* diagn/norml ECC writes */
#define KN03_MCR_CORRECT        (1<<13)         /* ECC correct/check */
#define KN03_MCR_RES_11         (0x3<<12)       /* unused */
#define KN03_MCR_BNK32M         (1<<10)         /* 32M/8M stride */
#define KN03_MCR_RES_7          (0x7<<7)        /* unused */
#define KN03_MCR_CHECK          (0x7f<<0)       /* diagnostic check bits */

/*
 * I/O ASIC System Support Register bits.
 */
#define KN03_IO_SSR_TXDIS1      (1<<14)         /* SCC1 transmit disable */
#define KN03_IO_SSR_TXDIS0      (1<<13)         /* SCC0 transmit disable */
#define KN03_IO_SSR_RES_12      (1<<12)         /* unused */

#define KN03_IO_SSR_LEDS        (0xff<<0)       /* ~diagnostic LEDs */

#endif /* __ASM_MIPS_DEC_KN03_H */