ata-amd.c revision 209872
1183724Ssos/*- 2183724Ssos * Copyright (c) 1998 - 2008 S�ren Schmidt <sos@FreeBSD.org> 3183724Ssos * All rights reserved. 4183724Ssos * 5183724Ssos * Redistribution and use in source and binary forms, with or without 6183724Ssos * modification, are permitted provided that the following conditions 7183724Ssos * are met: 8183724Ssos * 1. Redistributions of source code must retain the above copyright 9183724Ssos * notice, this list of conditions and the following disclaimer, 10183724Ssos * without modification, immediately at the beginning of the file. 11183724Ssos * 2. Redistributions in binary form must reproduce the above copyright 12183724Ssos * notice, this list of conditions and the following disclaimer in the 13183724Ssos * documentation and/or other materials provided with the distribution. 14183724Ssos * 15183724Ssos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16183724Ssos * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17183724Ssos * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18183724Ssos * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19183724Ssos * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20183724Ssos * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21183724Ssos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22183724Ssos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23183724Ssos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24183724Ssos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25183724Ssos */ 26183724Ssos 27183724Ssos#include <sys/cdefs.h> 28183724Ssos__FBSDID("$FreeBSD: head/sys/dev/ata/chipsets/ata-amd.c 209872 2010-07-10 13:46:14Z mav $"); 29183724Ssos 30183724Ssos#include "opt_ata.h" 31183724Ssos#include <sys/param.h> 32183724Ssos#include <sys/module.h> 33183724Ssos#include <sys/systm.h> 34183724Ssos#include <sys/kernel.h> 35183724Ssos#include <sys/ata.h> 36183724Ssos#include <sys/bus.h> 37183724Ssos#include <sys/endian.h> 38183724Ssos#include <sys/malloc.h> 39183724Ssos#include <sys/lock.h> 40183724Ssos#include <sys/mutex.h> 41183724Ssos#include <sys/sema.h> 42183724Ssos#include <sys/taskqueue.h> 43183724Ssos#include <vm/uma.h> 44183724Ssos#include <machine/stdarg.h> 45183724Ssos#include <machine/resource.h> 46183724Ssos#include <machine/bus.h> 47183724Ssos#include <sys/rman.h> 48183724Ssos#include <dev/pci/pcivar.h> 49183724Ssos#include <dev/pci/pcireg.h> 50183724Ssos#include <dev/ata/ata-all.h> 51183724Ssos#include <dev/ata/ata-pci.h> 52183724Ssos#include <ata_if.h> 53183724Ssos 54183724Ssos/* local prototypes */ 55200544Smariusstatic int ata_amd_ch_attach(device_t dev); 56183724Ssosstatic int ata_amd_chipinit(device_t dev); 57200171Smavstatic int ata_amd_setmode(device_t dev, int target, int mode); 58183724Ssos 59183724Ssos/* misc defines */ 60183724Ssos#define AMD_BUG 0x01 61183724Ssos#define AMD_CABLE 0x02 62183724Ssos 63183724Ssos/* 64200817Smav * Advanced Micro Devices (AMD) chipset support functions 65183724Ssos */ 66183724Ssosstatic int 67183724Ssosata_amd_probe(device_t dev) 68183724Ssos{ 69183724Ssos struct ata_pci_controller *ctlr = device_get_softc(dev); 70183724Ssos static struct ata_chip_id ids[] = 71183724Ssos {{ ATA_AMD756, 0x00, 0x00, 0, ATA_UDMA4, "756" }, 72183724Ssos { ATA_AMD766, 0x00, AMD_CABLE|AMD_BUG, 0, ATA_UDMA5, "766" }, 73183724Ssos { ATA_AMD768, 0x00, AMD_CABLE, 0, ATA_UDMA5, "768" }, 74183724Ssos { ATA_AMD8111, 0x00, AMD_CABLE, 0, ATA_UDMA6, "8111" }, 75183724Ssos { ATA_AMD5536, 0x00, 0x00, 0, ATA_UDMA5, "CS5536" }, 76183724Ssos { 0, 0, 0, 0, 0, 0}}; 77183724Ssos 78183724Ssos if (pci_get_vendor(dev) != ATA_AMD_ID) 79183724Ssos return ENXIO; 80183724Ssos 81183724Ssos if (!(ctlr->chip = ata_match_chip(dev, ids))) 82183724Ssos return ENXIO; 83183724Ssos 84183724Ssos ata_set_desc(dev); 85183724Ssos ctlr->chipinit = ata_amd_chipinit; 86194893Smav return (BUS_PROBE_DEFAULT); 87183724Ssos} 88183724Ssos 89183724Ssosstatic int 90183724Ssosata_amd_chipinit(device_t dev) 91183724Ssos{ 92183724Ssos struct ata_pci_controller *ctlr = device_get_softc(dev); 93183724Ssos 94183724Ssos if (ata_setup_interrupt(dev, ata_generic_intr)) 95183724Ssos return ENXIO; 96183724Ssos 97183724Ssos /* disable/set prefetch, postwrite */ 98183724Ssos if (ctlr->chip->cfg1 & AMD_BUG) 99183724Ssos pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) & 0x0f, 1); 100183724Ssos else 101183724Ssos pci_write_config(dev, 0x41, pci_read_config(dev, 0x41, 1) | 0xf0, 1); 102183724Ssos 103200544Smarius ctlr->ch_attach = ata_amd_ch_attach; 104183724Ssos ctlr->setmode = ata_amd_setmode; 105183724Ssos return 0; 106183724Ssos} 107183724Ssos 108200171Smavstatic int 109200171Smavata_amd_setmode(device_t dev, int target, int mode) 110183724Ssos{ 111200171Smav device_t parent = device_get_parent(dev); 112200171Smav struct ata_pci_controller *ctlr = device_get_softc(parent); 113200171Smav struct ata_channel *ch = device_get_softc(dev); 114200171Smav int devno = (ch->unit << 1) + target; 115200171Smav int piomode; 116200171Smav u_int8_t timings[] = { 0xa8, 0x65, 0x42, 0x22, 0x20, 0xa8, 0x22, 0x20 }; 117200171Smav int modes[7] = { 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, 0xc7 }; 118200171Smav int reg = 0x53 - devno; 119183724Ssos 120200171Smav mode = min(mode, ctlr->chip->max_dma); 121200171Smav if (ctlr->chip->cfg1 & AMD_CABLE) { 122209872Smav if (ata_dma_check_80pin && mode > ATA_UDMA2 && 123200171Smav !(pci_read_config(parent, 0x42, 1) & (1 << devno))) { 124200171Smav ata_print_cable(dev, "controller"); 125200171Smav mode = ATA_UDMA2; 126200171Smav } 127183724Ssos } 128200171Smav /* Set UDMA timings. */ 129200171Smav if (mode >= ATA_UDMA0) { 130200171Smav pci_write_config(parent, reg, modes[mode & ATA_MODE_MASK], 1); 131200171Smav piomode = ATA_PIO4; 132200171Smav } else { 133200171Smav pci_write_config(parent, reg, 0x8b, 1); 134200171Smav piomode = mode; 135200171Smav } 136200171Smav /* Set WDMA/PIO timings. */ 137200171Smav pci_write_config(parent, reg - 0x08, timings[ata_mode2idx(piomode)], 1); 138200171Smav return (mode); 139183724Ssos} 140183724Ssos 141200544Smariusstatic int 142200544Smariusata_amd_ch_attach(device_t dev) 143200544Smarius{ 144200544Smarius struct ata_pci_controller *ctlr; 145200544Smarius struct ata_channel *ch; 146200544Smarius int error; 147200544Smarius 148200544Smarius ctlr = device_get_softc(device_get_parent(dev)); 149200544Smarius ch = device_get_softc(dev); 150200544Smarius error = ata_pci_ch_attach(dev); 151200544Smarius if (ctlr->chip->cfg1 & AMD_CABLE) 152200544Smarius ch->flags |= ATA_CHECKS_CABLE; 153200544Smarius return (error); 154200544Smarius} 155200544Smarius 156183724SsosATA_DECLARE_DRIVER(ata_amd); 157