1 /* $NetBSD: dbau1500.c,v 1.3 2006/02/16 01:52:37 gdamore 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 1.3 2006/02/16 01:52:37 gdamore Exp $"); 36 37 #include <sys/param.h> 38 #include <machine/bus.h> 39 #include <machine/locore.h> 40 #include <evbmips/alchemy/obiovar.h> 41 #include <evbmips/alchemy/board.h> 42 #include <evbmips/alchemy/dbau1500reg.h> 43 44 #define GET16(x) \ 45 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x))) 46 #define PUT16(x, v) \ 47 (*((volatile uint16_t *)MIPS_PHYS_TO_KSEG1(x)) = (v)) 48 49 static void dbau1500_init(void); 50 static int dbau1500_pci_intr_map(struct pci_attach_args *, 51 pci_intr_handle_t *); 52 static void dbau1500_reboot(void); 53 54 static const struct obiodev dbau1500_devices[] = { 55 #if 0 56 { "aupcmcia", -1, -1 }, 57 { "auaudio", -1, -1 }, 58 #endif 59 { NULL }, 60 }; 61 62 static struct alchemy_board dbau1500_info = { 63 "AMD Alchemy DBAu1500", 64 dbau1500_devices, 65 dbau1500_init, 66 dbau1500_pci_intr_map, 67 dbau1500_reboot, 68 NULL, /* poweroff */ 69 }; 70 71 const struct alchemy_board * 72 board_info(void) 73 { 74 75 return &dbau1500_info; 76 } 77 78 void 79 dbau1500_init(void) 80 { 81 uint32_t whoami; 82 83 if (MIPS_PRID_COPTS(cpu_id) != MIPS_AU1500) 84 panic("dbau1500: CPU not an AU1500!"); 85 86 /* check the whoami register for a match */ 87 whoami = *((volatile uint32_t *)MIPS_PHYS_TO_KSEG1(DBAU1500_WHOAMI)); 88 89 if (DBAU1500_WHOAMI_BOARD(whoami) != DBAU1500_WHOAMI_DBAU1500) 90 panic("dbau1500: WHOAMI (%x) not DBAu1500!", whoami); 91 92 printf("DBAu1500 (zinfandel), CPLDv%d, ", 93 DBAU1500_WHOAMI_CPLD(whoami)); 94 95 if (DBAU1500_WHOAMI_DAUGHTER(whoami) != 0xf) 96 printf("daughtercard 0x%x\n", 97 DBAU1500_WHOAMI_DAUGHTER(whoami)); 98 else 99 printf("no daughtercard\n"); 100 101 /* leave console and clocks alone -- YAMON should have got it right! */ 102 } 103 104 int 105 dbau1500_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp) 106 { 107 /* 108 * This platform has PCI slot and IDE interrupts mapped 109 * identically. So we just need to look at which of the four 110 * PCI interrupts it is. 111 */ 112 113 switch (pa->pa_intrpin) { 114 case 0: 115 /* not used */ 116 return 1; 117 case 1: 118 *ihp = 1; 119 break; 120 case 2: 121 *ihp = 2; 122 break; 123 case 3: 124 *ihp = 4; 125 break; 126 case 4: 127 *ihp = 5; 128 break; 129 default: 130 printf("pci: bad interrupt pin %d\n", pa->pa_intrpin); 131 return 1; 132 } 133 return 0; 134 } 135 136 void 137 dbau1500_reboot(void) 138 { 139 PUT16(DBAU1500_SOFTWARE_RESET, 0); 140 delay(100000); /* 100 msec */ 141 } 142