/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* include / asm - mips / dec / kn05 . h
*
* DECstation / DECsystem 5000 / 260 ( 4 max + or KN05 ) , 5000 / 150 ( 4 min
* or KN04 - BA ) , Personal DECstation / DECsystem 5000 / 50 ( 4 maxine or
* KN04 - CA ) and DECsystem 5900 / 260 ( KN05 ) R4k CPU card MB ASIC
* definitions .
*
* Copyright ( C ) 2002 , 2003 , 2005 , 2008 Maciej W . Rozycki
*
* WARNING ! All this information is pure guesswork based on the
* ROM . It is provided here in hope it will give someone some
* food for thought . No documentation for the KN05 nor the KN04
* module has been located so far .
*/
#ifndef __ASM_MIPS_DEC_KN05_H
#define __ASM_MIPS_DEC_KN05_H
#include <asm /dec/ioasic_addrs.h>
/*
* The oncard MB ( Memory Buffer ) ASIC provides an additional address
* decoder . Certain address ranges within the " high " 16 slots are
* passed to the I / O ASIC ' s decoder like with the KN03 or KN02 - BA / CA .
* Others are handled locally . " Low " slots are always passed .
*/
#define KN4K_SLOT_BASE 0 x1fc00000
#define KN4K_MB_ROM (0 *IOASIC_SLOT_SIZE) /* KN05/KN04 card ROM */
#define KN4K_IOCTL (1 *IOASIC_SLOT_SIZE) /* I/O ASIC */
#define KN4K_ESAR (2 *IOASIC_SLOT_SIZE) /* LANCE MAC address chip */
#define KN4K_LANCE (3 *IOASIC_SLOT_SIZE) /* LANCE Ethernet */
#define KN4K_MB_INT (4 *IOASIC_SLOT_SIZE) /* MB interrupt register */
#define KN4K_MB_EA (5 *IOASIC_SLOT_SIZE) /* MB error address? */
#define KN4K_MB_EC (6 *IOASIC_SLOT_SIZE) /* MB error ??? */
#define KN4K_MB_CSR (7 *IOASIC_SLOT_SIZE) /* MB control & status */
#define KN4K_RES_08 (8 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_RES_09 (9 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_RES_10 (10 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_RES_11 (11 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_SCSI (12 *IOASIC_SLOT_SIZE) /* ASC SCSI */
#define KN4K_RES_13 (13 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_RES_14 (14 *IOASIC_SLOT_SIZE) /* unused? */
#define KN4K_RES_15 (15 *IOASIC_SLOT_SIZE) /* unused? */
/*
* MB ASIC interrupt bits .
*/
#define KN4K_MB_INR_MB 4 /* ??? */
#define KN4K_MB_INR_MT 3 /* memory, I/O bus read/write errors */
#define KN4K_MB_INR_RES_2 2 /* unused */
#define KN4K_MB_INR_RTC 1 /* RTC */
#define KN4K_MB_INR_TC 0 /* I/O ASIC cascade */
/*
* Bits for the MB interrupt register .
* The register appears read - only .
*/
#define KN4K_MB_INT_IRQ (0 x1f<<0 ) /* CPU Int[4:0] status. */
#define KN4K_MB_INT_IRQ_N(n) (1 <<(n)) /* Individual status bits. */
/*
* Bits for the MB control & status register .
* Set to 0 x00bf8001 for KN05 and to 0 x003f8000 for KN04 by the firmware .
*/
#define KN4K_MB_CSR_PF (1 <<0 ) /* PreFetching enable? */
#define KN4K_MB_CSR_F (1 <<1 ) /* ??? */
#define KN4K_MB_CSR_ECC (0 xff<<2 ) /* ??? */
#define KN4K_MB_CSR_OD (1 <<10 ) /* ??? */
#define KN4K_MB_CSR_CP (1 <<11 ) /* ??? */
#define KN4K_MB_CSR_UNC (1 <<12 ) /* ??? */
#define KN4K_MB_CSR_IM (1 <<13 ) /* ??? */
#define KN4K_MB_CSR_NC (1 <<14 ) /* ??? */
#define KN4K_MB_CSR_EE (1 <<15 ) /* (bus) Exception Enable? */
#define KN4K_MB_CSR_MSK (0 x1f<<16 ) /* CPU Int[4:0] mask */
#define KN4K_MB_CSR_MSK_N(n) (1 <<((n)+16 )) /* Individual mask bits. */
#define KN4K_MB_CSR_FW (1 <<21 ) /* ??? */
#define KN4K_MB_CSR_W (1 <<31 ) /* ??? */
#endif /* __ASM_MIPS_DEC_KN05_H */
Messung V0.5 in Prozent C=50 H=-100 G=79
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-10-02)
¤
*© Formatika GbR, Deutschland