1 /* $NetBSD: dbau1500.c,v 1.8 2015/06/09 22:49:55 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Garrett D'Amore for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: dbau1500.c,v 1.8 2015/06/09 22:49:55 matt Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/bus.h> 39 #include <sys/cpu.h> 40 41 #include <mips/locore.h> 42 43 #include <evbmips/alchemy/obiovar.h> 44 #include <evbmips/alchemy/board.h> 45 #include <evbmips/alchemy/dbau1500reg.h> 46 47 #define GET16(x) \ 48 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x))) 49 #define PUT16(x, v) \ 50 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v)) 51 52 static void dbau1500_init(void); 53 static int dbau1500_pci_intr_map(const struct pci_attach_args *, 54 pci_intr_handle_t *); 55 static void dbau1500_reboot(void); 56 57 static const struct obiodev dbau1500_devices[] = { 58 #if 0 59 { "aupcmcia", -1, -1 }, 60 { "auaudio", -1, -1 }, 61 #endif 62 { NULL }, 63 }; 64 65 static struct alchemy_board dbau1500_info = { 66 "AMD Alchemy DBAu1500", 67 dbau1500_devices, 68 dbau1500_init, 69 dbau1500_pci_intr_map, 70 dbau1500_reboot, 71 NULL, /* poweroff */ 72 }; 73 74 const struct alchemy_board * 75 board_info(void) 76 { 77 78 return &dbau1500_info; 79 } 80 81 void 82 dbau1500_init(void) 83 { 84 uint32_t whoami; 85 86 if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1500) 87 panic("dbau1500: CPU not an AU1500!"); 88 89 /* check the whoami register for a match */ 90 whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI)); 91 92 if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500) 93 panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami); 94 95 printf("DBAu1500 (zinfandel), CPLDv%d, ", 96 DBAU1500_WHOAMI_CPLD(whoami)); 97 98 if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf) 99 printf("daughtercard 0x%x\n", 100 DBAU1500_WHOAMI_DAUGHTER(whoami)); 101 else 102 printf("no daughtercard\n"); 103 104 /* leave console and clocks alone -- YAMON should have got it right! */ 105 } 106 107 int 108 dbau1500_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 109 { 110 /* 111 * This platform has PCI slot and IDE interrupts mapped 112 * identically. So we just need to look at which of the four 113 * PCI interrupts it is. 114 */ 115 116 switch (pa->pa_intrpin) { 117 case 0: 118 /* not used */ 119 return 1; 120 case 1: 121 *ihp = 1; 122 break; 123 case 2: 124 *ihp = 2; 125 break; 126 case 3: 127 *ihp = 4; 128 break; 129 case 4: 130 *ihp = 5; 131 break; 132 default: 133 printf("pci: bad interrupt pin %d\n", pa->pa_intrpin); 134 return 1; 135 } 136 return 0; 137 } 138 139 void 140 dbau1500_reboot(void) 141 { 142 PUT16(DBAU1500_SOFTWARE_RESET, 0); 143 delay(100000); /* 100 msec */ 144 } 145