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/*
* Hardware info about DECstation 5000/200 systems (otherwise known as
* 3max or KN02).
*
* 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) 2002, 2003, 2005 Maciej W. Rozycki
*/
#ifndef __ASM_MIPS_DEC_KN02_H
#define __ASM_MIPS_DEC_KN02_H
#define KN02_SLOT_BASE 0x1fc00000
#define KN02_SLOT_SIZE 0x00080000
/*
* Address ranges decoded by the "system slot" logic for onboard devices.
*/
#define KN02_SYS_ROM (0*KN02_SLOT_SIZE) /* system board ROM */
#define KN02_RES_1 (1*KN02_SLOT_SIZE) /* unused */
#define KN02_CHKSYN (2*KN02_SLOT_SIZE) /* ECC syndrome */
#define KN02_ERRADDR (3*KN02_SLOT_SIZE) /* bus error address */
#define KN02_DZ11 (4*KN02_SLOT_SIZE) /* DZ11 (DC7085) serial */
#define KN02_RTC (5*KN02_SLOT_SIZE) /* DS1287 RTC */
#define KN02_CSR (6*KN02_SLOT_SIZE) /* system ctrl & status reg */
#define KN02_SYS_ROM_7 (7*KN02_SLOT_SIZE) /* system board ROM (alias) */
/*
* System Control & Status Register bits.
*/
#define KN02_CSR_RES_28 (0xf<<28) /* unused */
#define KN02_CSR_PSU (1<<27) /* power supply unit warning */
#define KN02_CSR_NVRAM (1<<26) /* ~NVRAM clear jumper */
#define KN02_CSR_REFEVEN (1<<25) /* mem refresh bank toggle */
#define KN02_CSR_NRMOD (1<<24) /* ~NRMOD manufact. jumper */
#define KN02_CSR_IOINTEN (0xff<<16) /* IRQ mask bits */
#define KN02_CSR_DIAGCHK (1<<15) /* diagn/norml ECC reads */
#define KN02_CSR_DIAGGEN (1<<14) /* diagn/norml ECC writes */
#define KN02_CSR_CORRECT (1<<13) /* ECC correct/check */
#define KN02_CSR_LEDIAG (1<<12) /* ECC diagn. latch strobe */
#define KN02_CSR_TXDIS (1<<11) /* DZ11 transmit disable */
#define KN02_CSR_BNK32M (1<<10) /* 32M/8M stride */
#define KN02_CSR_DIAGDN (1<<9) /* DIAGDN manufact. jumper */
#define KN02_CSR_BAUD38 (1<<8) /* DZ11 38/19kbps ext. rate */
#define KN02_CSR_IOINT (0xff<<0) /* IRQ status bits (r/o) */
#define KN02_CSR_LEDS (0xff<<0) /* ~diagnostic LEDs (w/o) */
/*
* CPU interrupt bits.
*/
#define KN02_CPU_INR_RES_6 6 /* unused */
#define KN02_CPU_INR_BUS 5 /* memory, I/O bus read/write errors */
#define KN02_CPU_INR_RES_4 4 /* unused */
#define KN02_CPU_INR_RTC 3 /* DS1287 RTC */
#define KN02_CPU_INR_CASCADE 2 /* CSR cascade */
/*
* CSR interrupt bits.
*/
#define KN02_CSR_INR_DZ11 7 /* DZ11 (DC7085) serial */
#define KN02_CSR_INR_LANCE 6 /* LANCE (Am7990) Ethernet */
#define KN02_CSR_INR_ASC 5 /* ASC (NCR53C94) SCSI */
#define KN02_CSR_INR_RES_4 4 /* unused */
#define KN02_CSR_INR_RES_3 3 /* unused */
#define KN02_CSR_INR_TC2 2 /* TURBOchannel slot #2 */
#define KN02_CSR_INR_TC1 1 /* TURBOchannel slot #1 */
#define KN02_CSR_INR_TC0 0 /* TURBOchannel slot #0 */
#define KN02_IRQ_BASE 8 /* first IRQ assigned to CSR */
#define KN02_IRQ_LINES 8 /* number of CSR interrupts */
#define KN02_IRQ_NR(n) ((n) + KN02_IRQ_BASE)
#define KN02_IRQ_MASK(n) (1 << (n))
#define KN02_IRQ_ALL 0xff
#ifndef __ASSEMBLY__
#include <linux/types.h>
extern u32 cached_kn02_csr;
extern void init_kn02_irqs(int base);
#endif
#endif /* __ASM_MIPS_DEC_KN02_H */
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