1 /* $NetBSD: pccreg.h,v 1.11 2011/02/01 20:19:31 chuck Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Charles D. Cranor 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * peripheral channel controller on mvme147 30 */ 31 #ifndef __MVME68K_PCCREG_H 32 #define __MVME68K_PCCREG_H 33 34 /* 35 * Offsets to the MVME147's onboard device registers. 36 * (Relative to the bus_space_tag_t passed in from 'mainbus') 37 */ 38 #define PCC_LE_OFF 0x0800 /* offset of LANCE ethernet chip */ 39 #define PCC_VME_OFF 0x1000 /* offset of VME chip */ 40 #define PCC_LPT_OFF 0x1800 /* offset of parallel port register */ 41 #define PCC_ZS0_OFF 0x2000 /* offset of first 8530 UART */ 42 #define PCC_ZS1_OFF 0x2800 /* offset of second 8530 UART */ 43 #define PCC_WDSC_OFF 0x3000 /* offset of 33c93 SCSI chip */ 44 45 /* 46 * This is needed to figure out the boot device. 47 * (The physical address of the boot device's registers are passed in 48 * from the Boot ROM) 49 */ 50 #define PCC_PADDR(off) ((void *)(0xfffe0000u + (off))) 51 52 /* 53 * The PCC chip's own registers. These are 8-bits wide, unless 54 * otherwise indicated. 55 */ 56 #define PCCREG_DMA_TABLE_ADDR 0x00 /* DMA table address (32-bit) */ 57 #define PCCREG_DMA_DATA_ADDR 0x04 /* DMA data address (32-bit) */ 58 #define PCCREG_DMA_BYTE_COUNT 0x08 /* DMA byte count (32-bit) */ 59 #define PCCREG_DMA_DATA_HOLD 0x0c /* DMA data hold register (32-bit) */ 60 #define PCCREG_TMR1_PRELOAD 0x10 /* Timer1 preload (16-bit) */ 61 #define PCCREG_TMR1_COUNT 0x12 /* Timer1 count (16-bit) */ 62 #define PCCREG_TMR2_PRELOAD 0x14 /* Timer2 preload (16-bit) */ 63 #define PCCREG_TMR2_COUNT 0x16 /* Timer2 count (16-bit) */ 64 #define PCCREG_TMR1_INTR_CTRL 0x18 /* Timer1 interrupt ctrl */ 65 #define PCCREG_TMR1_CONTROL 0x19 /* Timer1 ctrl reg */ 66 #define PCCREG_TMR2_INTR_CTRL 0x1a /* Timer2 interrupt ctrl */ 67 #define PCCREG_TMR2_CONTROL 0x1b /* Timer2 ctrl reg */ 68 #define PCCREG_ACFAIL_INTR_CTRL 0x1c /* ACFAIL intr reg */ 69 #define PCCREG_WDOG_INTR_CTRL 0x1d /* Watchdog intr reg */ 70 #define PCCREG_PRNT_INTR_CTRL 0x1e /* Printer intr reg */ 71 #define PCCREG_PRNT_CONTROL 0x1f /* Printer ctrl */ 72 #define PCCREG_DMA_INTR_CTRL 0x20 /* DMA interrupt control */ 73 #define PCCREG_DMA_CONTROL 0x21 /* DMA csr */ 74 #define PCCREG_BUSERR_INTR_CTRL 0x22 /* Bus error interrupt */ 75 #define PCCREG_DMA_STATUS 0x23 /* DMA status register */ 76 #define PCCREG_ABORT_INTR_CTRL 0x24 /* ABORT interrupt control reg */ 77 #define PCCREG_TABLE_ADDR_FC 0x25 /* Table address function code reg */ 78 #define PCCREG_SERIAL_INTR_CTRL 0x26 /* Serial interrupt reg */ 79 #define PCCREG_GENERAL_CONTROL 0x27 /* General control register */ 80 #define PCCREG_LANCE_INTR_CTRL 0x28 /* Ethernet interrupt */ 81 #define PCCREG_GENERAL_STATUS 0x29 /* General status */ 82 #define PCCREG_SCSI_INTR_CTRL 0x2a /* SCSI interrupt reg */ 83 #define PCCREG_SLAVE_BASE_ADDR 0x2b /* Slave base addr reg */ 84 #define PCCREG_SOFT1_INTR_CTRL 0x2c /* Software interrupt #1 cr */ 85 #define PCCREG_VECTOR_BASE 0x2d /* Interrupt base vector register */ 86 #define PCCREG_SOFT2_INTR_CTRL 0x2e /* Software interrupt #2 cr */ 87 #define PCCREG_REVISION 0x2f /* Revision level */ 88 89 #define PCCREG_SIZE 0x30 90 91 /* 92 * Convenience macros for reading the PCC chip's registers 93 * through bus_space. 94 */ 95 #define pcc_reg_read(sc,r) \ 96 bus_space_read_1((sc)->sc_bust, (sc)->sc_bush, (r)) 97 #define pcc_reg_read16(sc,r) \ 98 bus_space_read_2((sc)->sc_bust, (sc)->sc_bush, (r)) 99 #define pcc_reg_read32(sc,r) \ 100 bus_space_read_4((sc)->sc_bust, (sc)->sc_bush, (r)) 101 #define pcc_reg_write(sc,r,v) \ 102 bus_space_write_1((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 103 #define pcc_reg_write16(sc,r,v) \ 104 bus_space_write_2((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 105 #define pcc_reg_write32(sc,r,v) \ 106 bus_space_write_4((sc)->sc_bust, (sc)->sc_bush, (r), (v)) 107 108 109 /* 110 * we lock off our interrupt vector at 0x40. 111 */ 112 113 #define PCC_VECBASE 0x40 114 #define PCC_NVEC 12 115 116 /* 117 * vectors we use 118 */ 119 120 #define PCCV_ACFAIL 0 121 #define PCCV_BERR 1 122 #define PCCV_ABORT 2 123 #define PCCV_ZS 3 124 #define PCCV_LE 4 125 #define PCCV_SCSI 5 126 #define PCCV_DMA 6 127 #define PCCV_PRINTER 7 128 #define PCCV_TIMER1 8 129 #define PCCV_TIMER2 9 130 #define PCCV_SOFT1 10 131 #define PCCV_SOFT2 11 132 133 /* 134 * enable interrupt 135 */ 136 137 #define PCC_ICLEAR 0x80 138 #define PCC_IENABLE 0x08 139 140 /* 141 * interrupt mask 142 */ 143 144 #define PCC_IMASK 0x7 145 146 /* 147 * clock/timer 148 */ 149 150 #define PCC_TIMERACK 0x80 /* ack intr */ 151 #define PCC_TIMERCLEAR 0x0 /* reset and clear timer */ 152 #define PCC_TIMERENABLE 0x1 /* Enable clock */ 153 #define PCC_TIMERSTOP 0x3 /* stop clock, but don't clear it */ 154 #define PCC_TIMERSTART 0x7 /* start timer */ 155 #define PCC_TIMEROVFLSHIFT 4 156 157 #define PCC_TIMERFREQ 160000 158 #define pcc_timer_hz2lim(hz) (0x10000 - (PCC_TIMERFREQ/(hz))) 159 #define pcc_timer_us2lim(us) (0x10000 - (PCC_TIMERFREQ/(1000000/(us)))) 160 161 /* 162 * serial control 163 */ 164 165 #define PCC_ZSEXTERN 0x10 /* let PCC supply vector */ 166 167 /* 168 * abort switch 169 */ 170 171 #define PCC_ABORT_IEN 0x08 /* enable interrupt */ 172 #define PCC_ABORT_ABS 0x40 /* current state of switch */ 173 #define PCC_ABORT_ACK 0x80 /* interrupt active; write to ack */ 174 175 /* 176 * general control register 177 */ 178 179 #define PCC_GENCR_IEN 0x10 /* global interrupt enable */ 180 181 /* 182 * slave base address register 183 */ 184 #define PCC_SLAVE_BASE_MASK (0x01fu) 185 186 #endif /* __MVME68K_PCCREG_H */ 187