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diff --git a/include/asm-mips/dec/kn02xa.h b/include/asm-mips/dec/kn02xa.h
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+/*
+ * 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 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/addrspace.h>
+#include <asm/dec/ioasic_addrs.h>
+
+#define KN02XA_SLOT_BASE KSEG1ADDR(0x1c000000)
+
+/*
+ * Some port addresses...
+ */
+#define KN02XA_IOASIC_BASE (KN02XA_SLOT_BASE + IOASIC_IOCTL) /* I/O ASIC */
+#define KN02XA_RTC_BASE (KN02XA_SLOT_BASE + IOASIC_TOY) /* RTC */
+
+
+/*
+ * Memory control ASIC registers.
+ */
+#define KN02XA_MER KSEG1ADDR(0x0c400000) /* memory error register */
+#define KN02XA_MSR KSEG1ADDR(0x0c800000) /* memory size register */
+
+/*
+ * CPU control ASIC registers.
+ */
+#define KN02XA_MEM_CONF KSEG1ADDR(0x0e000000) /* write timeout config */
+#define KN02XA_EAR KSEG1ADDR(0x0e000004) /* error address register */
+#define KN02XA_BOOT0 KSEG1ADDR(0x0e000008) /* boot 0 register */
+#define KN02XA_MEM_INTR KSEG1ADDR(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_RES_12 (0x3<<12) /* unused */
+#define KN02XA_MER_BYTERR (0xf<<8) /* byte lane error bitmask */
+#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 */
+
+#endif /* __ASM_MIPS_DEC_KN02XA_H */