1 /*- 2 * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/module.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/ata.h> 36 #include <sys/bus.h> 37 #include <sys/endian.h> 38 #include <sys/malloc.h> 39 #include <sys/lock.h> 40 #include <sys/mutex.h> 41 #include <sys/sema.h> 42 #include <sys/taskqueue.h> 43 #include <vm/uma.h> 44 #include <machine/stdarg.h> 45 #include <machine/resource.h> 46 #include <machine/bus.h> 47 #include <sys/rman.h> 48 #include <dev/pci/pcivar.h> 49 #include <dev/pci/pcireg.h> 50 #include <dev/ata/ata-all.h> 51 #include <dev/ata/ata-pci.h> 52 #include <ata_if.h> 53 54 /* local prototypes */ 55 static int ata_amd_ch_attach(device_t dev); 56 static int ata_amd_chipinit(device_t dev); 57 static int ata_amd_setmode(device_t dev, int target, int mode); 58 59 /* misc defines */ 60 #define AMD_BUG 0x01 61 #define AMD_CABLE 0x02 62 63 /* 64 * Advanced Micro Devices (AMD) chipset support functions 65 */ 66 static int 67 ata_amd_probe(device_t dev) 68 { 69 struct ata_pci_controller *ctlr = device_get_softc(dev); 70 static const struct ata_chip_id const ids[] = 71 {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" }, 72 { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" }, 73 { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" }, 74 { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" }, 75 { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" }, 76 { 0, 0, 0, 0, 0, 0}}; 77 78 if (pci_get_vendor(dev) != ATA_AMD_ID) 79 return ENXIO; 80 81 if (!(ctlr->chip = ata_match_chip(dev, ids))) 82 return ENXIO; 83 84 ata_set_desc(dev); 85 ctlr->chipinit = ata_amd_chipinit; 86 return (BUS_PROBE_DEFAULT); 87 } 88 89 static int 90 ata_amd_chipinit(device_t dev) 91 { 92 struct ata_pci_controller *ctlr = device_get_softc(dev); 93 94 if (ata_setup_interrupt(dev, ata_generic_intr)) 95 return ENXIO; 96 97 /* disable/set prefetch, postwrite */ 98 if (ctlr->chip->cfg1 & AMD_BUG) 99 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1); 100 else 101 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1); 102 103 ctlr->ch_attach = ata_amd_ch_attach; 104 ctlr->setmode = ata_amd_setmode; 105 return 0; 106 } 107 108 static int 109 ata_amd_setmode(device_t dev, int target, int mode) 110 { 111 device_t parent = device_get_parent(dev); 112 struct ata_pci_controller *ctlr = device_get_softc(parent); 113 struct ata_channel *ch = device_get_softc(dev); 114 int devno = (ch->unit << 1) + target; 115 int piomode; 116 static const uint8_t timings[] = 117 { 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 }; 118 static const uint8_t modes[] = 119 { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }; 120 int reg = 0x53 - devno; 121 122 mode = min(mode, ctlr->chip->max_dma); 123 if (ctlr->chip->cfg1 & AMD_CABLE) { 124 if (ata_dma_check_80pin && mode > ATA_UDMA2 && 125 !(pci_read_config(parent, 0x42, 1) & (1 << devno))) { 126 ata_print_cable(dev, "controller"); 127 mode = ATA_UDMA2; 128 } 129 } 130 /* Set UDMA timings. */ 131 if (mode >= ATA_UDMA0) { 132 pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1); 133 piomode = ATA_PIO4; 134 } else { 135 pci_write_config(parent, reg, 0x8b, 1); 136 piomode = mode; 137 } 138 /* Set WDMA/PIO timings. */ 139 pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1); 140 return (mode); 141 } 142 143 static int 144 ata_amd_ch_attach(device_t dev) 145 { 146 struct ata_pci_controller *ctlr; 147 struct ata_channel *ch; 148 int error; 149 150 ctlr = device_get_softc(device_get_parent(dev)); 151 ch = device_get_softc(dev); 152 error = ata_pci_ch_attach(dev); 153 if (ctlr->chip->cfg1 & AMD_CABLE) 154 ch->flags |= ATA_CHECKS_CABLE; 155 return (error); 156 } 157 158 ATA_DECLARE_DRIVER(ata_amd); 159