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 /* local prototypes */ 28 static int ata_amd_chipinit(device_t dev); 29 static void ata_amd_setmode(device_t dev, int mode); 30 31 /* misc defines */ 32 #define AMD_BUG 0x01 33 #define AMD_CABLE 0x02 34 35 /* 36 * Advanced Micro Devices (AMD) chipset support functions 37 */ 38 int 39 ata_amd_ident(device_t dev) 40 { 41 struct ata_pci_controller *ctlr = device_get_softc(dev); 42 static const struct ata_chip_id ids[] = 43 {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" }, 44 { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" }, 45 { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" }, 46 { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" }, 47 { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" }, 48 { 0, 0, 0, 0, 0, 0}}; 49 50 if (pci_get_vendor(dev) != ATA_AMD_ID) 51 return ENXIO; 52 53 if (!(ctlr->chip = ata_match_chip(dev, ids))) 54 return ENXIO; 55 56 ata_set_desc(dev); 57 ctlr->chipinit = ata_amd_chipinit; 58 return 0; 59 } 60 61 static int 62 ata_amd_chipinit(device_t dev) 63 { 64 struct ata_pci_controller *ctlr = device_get_softc(dev); 65 66 if (ata_setup_interrupt(dev, ata_generic_intr)) 67 return ENXIO; 68 69 /* disable/set prefetch, postwrite */ 70 if (ctlr->chip->cfg1 & AMD_BUG) 71 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1); 72 else 73 pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1); 74 75 ctlr->setmode = ata_amd_setmode; 76 return 0; 77 } 78 79 static void 80 ata_amd_setmode(device_t dev, int mode) 81 { 82 device_t gparent = GRANDPARENT(dev); 83 struct ata_pci_controller *ctlr = device_get_softc(gparent); 84 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 85 struct ata_device *atadev = device_get_softc(dev); 86 int devno = (ch->unit << 1) + atadev->unit; 87 static const uint8_t timings[] = 88 { 0xa8, 0x65, 0x42, 0x22, 0x20, 0x42, 0x22, 0x20, 89 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 }; 90 static const uint8_t modes[] = 91 { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }; 92 int reg = 0x53 - devno; 93 int error; 94 95 mode = ata_limit_mode(dev, mode, ctlr->chip->max_dma); 96 97 if (ctlr->chip->cfg1 & AMD_CABLE) { 98 if (mode > ATA_UDMA2 && 99 !(pci_read_config(gparent, 0x42, 1) & (1 << devno))) { 100 ata_print_cable(dev, "controller"); 101 mode = ATA_UDMA2; 102 } 103 } 104 else 105 mode = ata_check_80pin(dev, mode); 106 107 error = ata_controlcmd(dev, ATA_SETFEATURES, ATA_SF_SETXFER, 0, mode); 108 if (bootverbose) 109 device_printf(dev, "%ssetting %s on %s chip\n", 110 (error) ? "FAILURE " : "", ata_mode2str(mode), 111 ctlr->chip->text); 112 if (!error) { 113 pci_write_config(gparent, reg - 0x08, timings[ata_mode2idx(mode)], 1); 114 if (mode >= ATA_UDMA0) 115 pci_write_config(gparent, reg, modes[mode & ATA_MODE_MASK], 1); 116 else 117 pci_write_config(gparent, reg, 0x8b, 1); 118 atadev->mode = mode; 119 } 120 } 121