/* $NetBSD: kn230.h,v 1.5 2024/05/24 19:00:27 rillig 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 * 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 baseboard 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 separate control and status registers for each of * the two motherboard SIMM banks (even and odd), * located at offsets from the 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). */
