1 /* $NetBSD: kn230.h,v 1.5 2024/05/24 19:00:27 rillig Exp $ */ 2 3 /* 4 * Copyright (c) 1997,1998 Jonathan Stone. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jonathan Stone for 18 * the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 36 /* 37 * Physical addresses of baseboard devices and registers on the 38 * DECstation 5100 motherboard (also known as the kn230). 39 * 40 * The only options on the kn230 are two slots for daughterboards. 41 * Each slot can contain an extra four-port dc708x DZ11 clone chip. 42 * Most baseboard chips are the same hardware and at the same 43 * address as the DECstation 3100 (kn01), except: 44 * 45 * The kn230 has more devices than the 3100, so instead 46 * of hardwiring each device to a CPU interrupt line, 47 * the kn230 provides an interrupt-request register (ICSR). 48 * Devices are mapped onto CPU interrupt lines as below: 49 * hardint 5: fpu 50 * hardint 4: reset switch 51 * hardint 3: memory error (write to nonexistent memory) 52 * hardint 2: clock 53 * hardint 1: sii, lance 54 * hardint 0: baseboard DZ, I/O option cards 55 * 56 * the ICSR only indicates which devices are requesting interrupts. 57 * there is no interrupt mask register. 58 * 59 * There is no framebuffer, pcc (cursor), colormap or vdac on a 5100. 60 */ 61 62 #define KN230_SYS_LANCE 0x18000000 /* Lance chip */ 63 #define KN230_SYS_LANCE_B_START 0x19000000 /* 64 Kb Lance Buffer */ 64 #define KN230_SYS_LANCE_B_END 0x19010000 65 66 #define KN230_SYS_SII 0x1a000000 /* scsi SII chip */ 67 #define KN230_SYS_SII_B_START 0x1b000000 /* 128 Kb SCSI buffer */ 68 #define KN230_SYS_SII_B_END 0x1b020000 69 70 #define KN230_SYS_DZ0 0x1c000000 /* baseboard DZ serial chip */ 71 72 #define KN230_SYS_CLOCK 0x1d000000 /* mc146818 rtc chip */ 73 74 #define KN230_SYS_ICSR 0x1e000000 /* System control register */ 75 76 /* 77 * Interrupt-request bitmasks in the low-order 16 bits of the CSR. 78 * If a bit is set, the corresponding device has an interrupt condition. 79 * There is no equivalent per-device interrupt masking register. 80 * (note: these were LED control bits in the kn01). 81 */ 82 #define KN230_CSR_INTR_RESET 0x00004000 /* reset button */ 83 #define KN230_CSR_INTR_WMERR 0x00002000 /* badaddr() or write error */ 84 #define KN230_CSR_INTR_LANCE 0x00001000 /* lance interrupt */ 85 #define KN230_CSR_INTR_SII 0x00000800 /* scsi interrupt */ 86 #define KN230_CSR_INTR_OPT1 0x00000400 /* second option DZ */ 87 #define KN230_CSR_INTR_OPT0 0x00000200 /* first option DZ */ 88 #define KN230_CSR_INTR_DZ0 0x00000100 /* baseboard DZ */ 89 90 /* 91 * kn230 LED control register. 92 * Writing a 1 bit to any bit turns off the corresponding LED. 93 * low bits are or'ed to control registers which have side effects. 94 * 95 * This is sort of like the 3100 CSR only at a different address, and 96 * with the same external-logic hack as the 5000/200 to enable 38.4 97 * baud mode on the baseboard DZ chip. 98 */ 99 #define KN230_SYS_CTL_LED 0x14000000 /* LED register */ 100 #define KN230_LED7 0x00008000 /* no side effect */ 101 #define KN230_LED6 0x00004000 /* no side effect */ 102 #define KN230_LED5 0x00002000 /* no side effect */ 103 #define KN230_LED4 0x00001000 /* no side effect */ 104 105 #define KN230_LED3 0x00000800 /* Turns off led 3. 106 * Also disables main memory. 107 * enables writes to EEPROM. 108 */ 109 110 #define KN230_LED2 0x00000400 /* Turns off led 2. 111 * 0: forces DZ to run at 112 * 38.4 when 19.2 is selected 113 * 1: is 19.2 means 19.2. 114 */ 115 116 #define KN230_LED1 0x00000200 /* read-only 117 * 0: 8M memory in bank 1 118 * 1: 32M in bank1 119 */ 120 #define KN230_LED0 0x00000100 121 122 /* 123 * Option slot addresses. 124 * dc7084 registers appear here, if present. 125 */ 126 #define KN230_SYS_DZ1 0x15000000 /* DZ1 Control and status */ 127 #define KN230_SYS_DZ2 0x15200000 /* DZ2 Control and status */ 128 129 /* 130 * Write error address. 131 * Same address as the KN01_SYS_MERR, but with a presence bit for a 132 * PrestoServe option and a secure console-mode the low-order bits. 133 */ 134 #define KN230_SYS_WEAR 0x17000000 /* Write-error address reg */ 135 #define KN230_WEAR_OPTIONMASK 0x00000001 /* 1 if no card present */ 136 #define KN230_WEAR_OPTION_FALSE KN230_WEAR_OPTIONMASK 137 #define KN230_WEAR_OPTION_TRUE 0 138 139 #define KN230_WEAR_SECUREMASK 0x00000002 /* "1": system is insecure */ 140 #define KN230_WEAR_INSECURE KN230_WEAR_SECUREMASK 141 #define KN230_WEAR_SECURE 0 142 143 /* 144 * various leftover stuff.... 145 */ 146 147 /* 148 * Option ID register. Indicates whether options are present. 149 */ 150 #define KN230_SYS_OID 0x1f00020c /* option slot ID register */ 151 #define KN230_OID_MASK 0x000000ff /* ID number mask */ 152 #define KN230_ERRCNT_MASK 0x0000ff00 /* hardware failure count */ 153 154 155 #define KN230_SYS_PASSWD 0x1f000244 /* password location */ 156 157 /* 158 * NVRAM state definitions. 159 * Used under Ultrix for PrestoServe. 160 */ 161 #define KN230_SYS_NVRAM_DIAG 0x1f000300 /* NVRAM diagnostic register */ 162 #define KN230_NVRAM_PRESENT 0x00000001 163 #define KN230_NVRAM_TESTFAIL_RO 0x00000002 164 #define KN230_NVRAM_TESTFAIL_RW 0x00000004 165 #define KN230_NVRAM_FAILURE 0x00000008 /* ran out of power anyway? */ 166 #define KN230_NVRAM_SIZEMASK 0x000000f0 167 168 #define KN230_SYS_NVRAM_ADDR 0x1f000304 /* holds addr of NVRAM bank */ 169 /* 170 * NVRAM has separate control and status registers for each of 171 * the two motherboard SIMM banks (even and odd), 172 * located at offsets from the value at SYS_NVRAM_ADDR. 173 */ 174 # define KN230_SYS_NVRAM_EVENBNK_STATUS_OFFSET (0x200000) 175 # define KN230_SYS_NVRAM_ODDBNK_STATUS_OFFSET (0x200000 +4) 176 # define KN230_SYS_NVRAM_EVENBNK_CONTROL_OFFSET (-0x200000) 177 # define KN230_SYS_NVRAM_ODDNK_STATUS_OFFSET (-0x200000+4) 178 179 /* flags in nvram per-bank status register */ 180 #define KN230_NVRAM_BATFAIL 0x00000001 /* battery failure */ 181 #define KN230_NVRAM_BATKILL 0x00000002 /* battery kill */ 182 /* 183 * To enable the battery, write 0x00 to each nvram control reg. 184 * To disable the battery, write the sequence 185 * 0x01, 0x01, 0x00, 0x00, 0x01 186 * to both per-bank control registers (do banks in parallel, not in sequence). 187 */ 188
Indexes created Wed Oct 01 19:09:53 GMT 2025