1 /* $NetBSD: dbau1500.c,v 1.7 2011/07/10 00:03:52 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 1.7 2011/07/10 00:03:52 matt Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/bus.h> 39 40 #include <mips/locore.h> 41 42 #include <evbmips/alchemy/obiovar.h> 43 #include <evbmips/alchemy/board.h> 44 #include <evbmips/alchemy/dbau1500reg.h> 45 46 #define GET16(x) \ 47 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x))) 48 #define PUT16(x, v) \ 49 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v)) 50 51 static void dbau1500_init(void); 52 static int dbau1500_pci_intr_map(const struct pci_attach_args *, 53 pci_intr_handle_t *); 54 static void dbau1500_reboot(void); 55 56 static const struct obiodev dbau1500_devices[] = { 57 #if 0 58 { "aupcmcia", -1, -1 }, 59 { "auaudio", -1, -1 }, 60 #endif 61 { NULL }, 62 }; 63 64 static struct alchemy_board dbau1500_info = { 65 "AMD Alchemy DBAu1500", 66 dbau1500_devices, 67 dbau1500_init, 68 dbau1500_pci_intr_map, 69 dbau1500_reboot, 70 NULL, /* poweroff */ 71 }; 72 73 const struct alchemy_board * 74 board_info(void) 75 { 76 77 return &dbau1500_info; 78 } 79 80 void 81 dbau1500_init(void) 82 { 83 uint32_t whoami; 84 85 if (MIPS_PRID_COPTS(mips_options.mips_cpu_id) != MIPS_AU1500) 86 panic("dbau1500: CPU not an AU1500!"); 87 88 /* check the whoami register for a match */ 89 whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI)); 90 91 if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500) 92 panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami); 93 94 printf("DBAu1500 (zinfandel), CPLDv%d, ", 95 DBAU1500_WHOAMI_CPLD(whoami)); 96 97 if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf) 98 printf("daughtercard 0x%x\n", 99 DBAU1500_WHOAMI_DAUGHTER(whoami)); 100 else 101 printf("no daughtercard\n"); 102 103 /* leave console and clocks alone -- YAMON should have got it right! */ 104 } 105 106 int 107 dbau1500_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 108 { 109 /* 110 * This platform has PCI slot and IDE interrupts mapped 111 * identically. So we just need to look at which of the four 112 * PCI interrupts it is. 113 */ 114 115 switch (pa->pa_intrpin) { 116 case 0: 117 /* not used */ 118 return 1; 119 case 1: 120 *ihp = 1; 121 break; 122 case 2: 123 *ihp = 2; 124 break; 125 case 3: 126 *ihp = 4; 127 break; 128 case 4: 129 *ihp = 5; 130 break; 131 default: 132 printf("pci: bad interrupt pin %d\n", pa->pa_intrpin); 133 return 1; 134 } 135 return 0; 136 } 137 138 void 139 dbau1500_reboot(void) 140 { 141 PUT16(DBAU1500_SOFTWARE_RESET, 0); 142 delay(100000); /* 100 msec */ 143 } 144