NetBSD-5.0.2/sys/arch/pmax/pmax/kn230.h
/* $NetBSD: kn230.h,v 1.3 2002/09/29 23:23:58 wiz Exp $ */
/*
* Copyright (c) 1997,1998 Jonathan Stone.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jonathan Stone for
* the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Physical addresses of baseboard devices and registers on the
* the DECstation 5100 motherboard (also known as the kn230).
*
* The only options on the kn230 are two slots for daughterboards.
* Each slot can contain an extra four-port dc708x DZ11 clone chip.
* Most baseborad chips are the same hardware and at the same
* address as the DECstation 3100 (kn01), except:
*
* The kn230 has more devices than the 3100, so instead
* of hardwiring each device to a CPU interrupt line,
* the kn230 provides an interrupt-request register (ICSR).
* Devices are mapped onto CPU interrupt lines as below:
* hardint 5: fpu
* hardint 4: reset switch
* hardint 3: memory error (write to nonexistent memory)
* hardint 2: clock
* hardint 1: sii, lance
* hardint 0: baseboard DZ, I/O option cards
*
* the ICSR only indicates which devices are requesting interrupts.
* there is no interrupt mask register.
*
* There is no framebuffer, pcc (cursor), colormap or vdac on a 5100.
*/
#define KN230_SYS_LANCE 0x18000000 /* Lance chip */
#define KN230_SYS_LANCE_B_START 0x19000000 /* 64 Kb Lance Buffer */
#define KN230_SYS_LANCE_B_END 0x19010000
#define KN230_SYS_SII 0x1a000000 /* scsi SII chip */
#define KN230_SYS_SII_B_START 0x1b000000 /* 128 Kb SCSI buffer */
#define KN230_SYS_SII_B_END 0x1b020000
#define KN230_SYS_DZ0 0x1c000000 /* baseboard DZ serial chip */
#define KN230_SYS_CLOCK 0x1d000000 /* mc146818 rtc chip */
#define KN230_SYS_ICSR 0x1e000000 /* System control register */
/*
* Interrupt-request bitmasks in the low-order 16 bits of the CSR.
* If a bit is set, the corresponding device has an interrupt condition.
* There is no equivalent per-device interrupt masking register.
* (note: these were LED control bits in the kn01).
*/
#define KN230_CSR_INTR_RESET 0x00004000 /* reset button */
#define KN230_CSR_INTR_WMERR 0x00002000 /* badaddr() or write error */
#define KN230_CSR_INTR_LANCE 0x00001000 /* lance interrupt */
#define KN230_CSR_INTR_SII 0x00000800 /* scsi interrupt */
#define KN230_CSR_INTR_OPT1 0x00000400 /* second option DZ */
#define KN230_CSR_INTR_OPT0 0x00000200 /* first option DZ */
#define KN230_CSR_INTR_DZ0 0x00000100 /* baseboard DZ */
/*
* kn230 LED control register.
* Writing a 1 bit to any bit turns off the corresponding LED.
* low bits are or'ed to control registers which have side effects.
*
* This is sort of like the 3100 CSR only at a different address, and
* with the same external-logic hack as the 5000/200 to enable 38.4
* baud mode on the baseboard DZ chip.
*/
#define KN230_SYS_CTL_LED 0x14000000 /* LED register */
#define KN230_LED7 0x00008000 /* no side effect */
#define KN230_LED6 0x00004000 /* no side effect */
#define KN230_LED5 0x00002000 /* no side effect */
#define KN230_LED4 0x00001000 /* no side effect */
#define KN230_LED3 0x00000800 /* Turns off led 3.
* Also disables main memory.
* enables writes to EEPROM.
*/
#define KN230_LED2 0x00000400 /* Turns off led 2.
* 0: forces DZ to run at
* 38.4 when 19.2 is selected
* 1: is 19.2 means 19.2.
*/
#define KN230_LED1 0x00000200 /* read-only
* 0: 8M memory in bank 1
* 1: 32M in bank1
*/
#define KN230_LED0 0x00000100
/*
* Option slot addresses.
* dc7084 registers appear here, if present.
*/
#define KN230_SYS_DZ1 0x15000000 /* DZ1 Control and status */
#define KN230_SYS_DZ2 0x15200000 /* DZ2 Control and status */
/*
* Write error address.
* Same address as the KN01_SYS_MERR, but with a presence bit for a
* PrestoServe option and a secure console-mode the low-order bits.
*/
#define KN230_SYS_WEAR 0x17000000 /* Write-error address reg */
#define KN230_WEAR_OPTIONMASK 0x00000001 /* 1 if no card present */
#define KN230_WEAR_OPTION_FALSE KN230_WEAR_OPTIONMASK
#define KN230_WEAR_OPTION_TRUE 0
#define KN230_WEAR_SECUREMASK 0x00000002 /* "1": system is insecure */
#define KN230_WEAR_INSECURE KN230_WEAR_SECUREMASK
#define KN230_WEAR_SECURE 0
/*
* various leftover stuff....
*/
/*
* Option ID register. Indicates whether options are present.
*/
#define KN230_SYS_OID 0x1f00020c /* option slot ID register */
#define KN230_OID_MASK 0x000000ff /* ID number mask */
#define KN230_ERRCNT_MASK 0x0000ff00 /* hardware failure count */
#define KN230_SYS_PASSWD 0x1f000244 /* password location */
/*
* NVRAM state definitions.
* Used under Ultrix for PrestoServe.
*/
#define KN230_SYS_NVRAM_DIAG 0x1f000300 /* NVRAM diagnostic register */
#define KN230_NVRAM_PRESENT 0x00000001
#define KN230_NVRAM_TESTFAIL_RO 0x00000002
#define KN230_NVRAM_TESTFAIL_RW 0x00000004
#define KN230_NVRAM_FAILURE 0x00000008 /* ran out of power anyway? */
#define KN230_NVRAM_SIZEMASK 0x000000f0
#define KN230_SYS_NVRAM_ADDR 0x1f000304 /* holds addr of NVRAM bank */
/*
* NVRAM has separete control and status registers for each of
* the two motherboard SIMM banks (even and odd),
* located at offsets from the value at value at SYS_NVRAM_ADDR.
*/
# define KN230_SYS_NVRAM_EVENBNK_STATUS_OFFSET (0x200000)
# define KN230_SYS_NVRAM_ODDBNK_STATUS_OFFSET (0x200000 +4)
# define KN230_SYS_NVRAM_EVENBNK_CONTROL_OFFSET (-0x200000)
# define KN230_SYS_NVRAM_ODDNK_STATUS_OFFSET (-0x200000+4)
/* flags in nvram per-bank status register */
#define KN230_NVRAM_BATFAIL 0x00000001 /* battery failure */
#define KN230_NVRAM_BATKILL 0x00000002 /* battery kill */
/*
* To enable the battery, write 0x00 to each nvram control reg.
* To disable the battery, write the sequence
* 0x01, 0x01, 0x00, 0x00, 0x01
* to both per-bank control registers (do banks in parallel, not in sequence).
*/