11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 259bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> 359bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1995-1998 Mark Lord 4ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz * Copyright (C) 2007-2009 Bartlomiej Zolnierkiewicz 558f189fccc72bb8a91de1854e519b47d64fbdbaaBartlomiej Zolnierkiewicz * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * May be copied or modified under the terms of the GNU General Public License 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/types.h> 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/kernel.h> 1138789fda295689689d064c0157bc363b1837b5e6Paul Gortmaker#include <linux/export.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dma-mapping.h> 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_pci_baseregs - place a PCI IDE controller native 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device of interface to switch native 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @name: Name of interface 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We attempt to place the PCI interface into PCI native mode. If 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we succeed the BARs are ok and the controller is in PCI mode. 27846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi * Returns 0 on success or an errno code. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: if we program the interface and then fail to set the BARS 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't switch it back to legacy mode. Do we actually care ?? 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 32846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 33846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchistatic int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 progif = 0; 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Place both IDE interfaces into PCI "native" mode: 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (progif & 5) != 5) { 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((progif & 0xa) != 0xa) { 4328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: device not capable of full " 4428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz "native PCI mode\n", name, pci_name(dev)); 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: placing both ports into native PCI " 4828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz "mode\n", name, pci_name(dev)); 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5); 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (progif & 5) != 5) { 5228cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: rewrite of PROGIF failed, " 5328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz "wanted 0x%04x, got 0x%04x\n", 5428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz name, pci_name(dev), progif | 5, progif); 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA_PCI 6228cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewiczstatic int ide_pci_clear_simplex(unsigned long dma_base, const char *name) 638ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz{ 648ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz u8 dma_stat = inb(dma_base + 2); 658ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 668ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz outb(dma_stat & 0x60, dma_base + 2); 678ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz dma_stat = inb(dma_base + 2); 6828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz 6928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz return (dma_stat & 0x80) ? 1 : 0; 708ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz} 718ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 73b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz * ide_pci_dma_base - setup BMIBA 74039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @hwif: IDE interface 75b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz * @d: IDE port info 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 77c58e79dd44243ec919d789193ffb35a220c54695Bartlomiej Zolnierkiewicz * Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space. 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 80b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczunsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8236501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz struct pci_dev *dev = to_pci_dev(hwif->dev); 8336501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz unsigned long dma_base = 0; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 85135721446144af005109c25eeacca4fdddcd9a66Bartlomiej Zolnierkiewicz if (hwif->host_flags & IDE_HFLAG_MMIO) 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hwif->dma_base; 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->mate && hwif->mate->dma_base) { 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8); 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 919ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz u8 baridx = (d->host_flags & IDE_HFLAG_CS5520) ? 2 : 4; 929ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz 939ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz dma_base = pci_resource_start(dev, baridx); 949ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz 95aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz if (dma_base == 0) { 9628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: DMA base is invalid\n", 9728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 98aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz return 0; 99aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz } 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 102aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz if (hwif->channel) 103aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz dma_base += 8; 104aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz 105ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return dma_base; 106ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz} 107ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_dma_base); 108ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 109ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewiczint ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) 110ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz{ 11128cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz struct pci_dev *dev = to_pci_dev(hwif->dev); 112ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz u8 dma_stat; 113ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 114ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) 1158ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz goto out; 1168ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 1178ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { 11828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz if (ide_pci_clear_simplex(hwif->dma_base, d->name)) 11928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: simplex device: DMA forced\n", 12028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 1218ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz goto out; 1228ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz } 1238ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 1248ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz /* 1258ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * If the device claims "simplex" DMA, this means that only one of 1268ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the two interfaces can be trusted with DMA at any point in time 1278ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * (so we should enable DMA only on one of the two interfaces). 1288ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * 1298ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * FIXME: At this point we haven't probed the drives so we can't make 1308ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the appropriate decision. Really we should defer this problem until 1318ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * we tune the drive then try to grab DMA ownership if we want to be 1328ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the DMA end. This has to be become dynamic to handle hot-plug. 1338ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz */ 134592b5315219881c6c0af4785f96456ad2043193aSergei Shtylyov dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); 1358ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { 13628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: simplex device: DMA disabled\n", 13728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 138ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1408ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewiczout: 141ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return 0; 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 143ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_check_simplex); 144d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 145d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz/* 146d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz * Set up BM-DMA capability (PnP BIOS should have done this) 147d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz */ 148b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczint ide_pci_set_master(struct pci_dev *dev, const char *name) 149d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz{ 150d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz u16 pcicmd; 151d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 152d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz pci_read_config_word(dev, PCI_COMMAND, &pcicmd); 153d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 154d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz if ((pcicmd & PCI_COMMAND_MASTER) == 0) { 155d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz pci_set_master(dev); 156d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 157d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || 158d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz (pcicmd & PCI_COMMAND_MASTER) == 0) { 15928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: error updating PCICMD\n", 16028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz name, pci_name(dev)); 161d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz return -EIO; 162d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz } 163d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz } 164d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 165d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz return 0; 166d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz} 167b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_set_master); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1708562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczvoid ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d) 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 17228cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: IDE controller (0x%04x:0x%04x rev 0x%02x)\n", 17328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev), 17428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz dev->vendor, dev->device, dev->revision); 1751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(ide_setup_pci_noise); 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_enable - do PCI enables 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 182039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Enable the IDE PCI device. We attempt to enable the device in full 1850948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * but if that fails then we only need IO space. The PCI code should 1860948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * have setup the proper resources for us already for controllers in 1870948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * legacy mode. 188846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi * 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns zero on success or an error code 1901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 191039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 1928562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczstatic int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1940d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz int ret, bars; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_enable_device(dev)) { 1970948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt ret = pci_enable_device_io(dev); 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 19928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_WARNING "%s %s: couldn't enable device\n", 20028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 20328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_WARNING "%s %s: BIOS configuration fixed\n", 20428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 208039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * assume all devices can do 32-bit DMA for now, we can add 209039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * a DMA mask field to the struct ide_port_info if we need it 210039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * (or let lower level driver set the DMA mask) 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 212284901a90a9e0b812ca3f5f852cbbfb60d10249dYang Hongyang ret = pci_set_dma_mask(dev, DMA_BIT_MASK(32)); 2131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 21428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: can't set DMA mask\n", 21528cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2190d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_SINGLE) 2200d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars = (1 << 2) - 1; 2210d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz else 2220d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars = (1 << 4) - 1; 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2240d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { 2250d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_CS5520) 2260d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars |= (1 << 2); 2270d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz else 2280d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars |= (1 << 4); 2290d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz } 2300d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz 2310d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz ret = pci_request_selected_regions(dev, bars, d->name); 2320d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (ret < 0) 23328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: can't reserve resources\n", 23428cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_configure - configure an unconfigured device 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 242039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Enable and configure the PCI device we have been passed. 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns zero on success or an error code. 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 247039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 2488562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczstatic int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) 2491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pcicmd = 0; 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PnP BIOS was *supposed* to have setup this device, but we 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * can do it ourselves, so long as the BIOS has assigned an IRQ 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (or possibly the device is using a "legacy header" for IRQs). 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Maybe the user deliberately *disabled* the device, 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but we'll eventually ignore it again if no drives respond. 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 258846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi if (ide_setup_pci_baseregs(dev, d->name) || 259846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { 26028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: device disabled (BIOS)\n", 26128cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { 26528cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: error accessing PCI regs\n", 26628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 2681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(pcicmd & PCI_COMMAND_IO)) { 27028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: unable to enable IDE controller\n", 27128cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENXIO; 2731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_check_iomem - check a register is I/O 279039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @dev: PCI device 280039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 281039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @bar: BAR number 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2831baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov * Checks if a BAR is configured and points to MMIO space. If so, 2841baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov * return an error code. Otherwise return 0 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 286039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 2871baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyovstatic int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, 2881baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov int bar) 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulong flags = pci_resource_flags(dev, bar); 291846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Unconfigured ? */ 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!flags || pci_resource_len(dev, bar) == 0) 2941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2961baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov /* I/O space */ 2971baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov if (flags & IORESOURCE_IO) 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 299846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Bad */ 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3059f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz * ide_hw_configure - configure a struct ide_hw instance 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device holding interface 307039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 3081ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz * @port: port number 3099f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz * @hw: struct ide_hw instance corresponding to this port 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the initial set up for the hardware interface structure. This 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is done per interface port rather than per PCI device. There may be 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * more than one port per device. 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 31548c3c1072651922ed153bcf0a33ea82cf20df390Bartlomiej Zolnierkiewicz * Returns zero on success or an error code. 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 317039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 31848c3c1072651922ed153bcf0a33ea82cf20df390Bartlomiej Zolnierkiewiczstatic int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, 3199f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz unsigned int port, struct ide_hw *hw) 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long ctl = 0, base = 0; 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 323a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { 3241baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov if (ide_pci_check_iomem(dev, d, 2 * port) || 3251baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov ide_pci_check_iomem(dev, d, 2 * port + 1)) { 32628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: I/O baseregs (BIOS) are " 32728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz "reported as MEM for port %d!\n", 32828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev), port); 32948c3c1072651922ed153bcf0a33ea82cf20df390Bartlomiej Zolnierkiewicz return -EINVAL; 3301baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov } 331846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctl = pci_resource_start(dev, 2*port+1); 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = pci_resource_start(dev, 2*port); 334c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz } else { 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Use default values */ 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctl = port ? 0x374 : 0x3f4; 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = port ? 0x170 : 0x1f0; 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 339bad7c825cb27377faf1c926953aa15c980c62620Bartlomiej Zolnierkiewicz 340c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz if (!base || !ctl) { 34128cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: bad PCI BARs for port %d, skipping\n", 34228cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev), port); 34348c3c1072651922ed153bcf0a33ea82cf20df390Bartlomiej Zolnierkiewicz return -EINVAL; 344c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz } 345c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz 346c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz memset(hw, 0, sizeof(*hw)); 347c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw->dev = &dev->dev; 348c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_std_init_ports(hw, base, ctl | 2); 349c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz 35048c3c1072651922ed153bcf0a33ea82cf20df390Bartlomiej Zolnierkiewicz return 0; 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 353c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz#ifdef CONFIG_BLK_DEV_IDEDMA_PCI 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_setup_dma - configure DMA interface 356039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @hwif: IDE interface 357c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz * @d: IDE port info 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the DMA base for the interface. Enable the master bits as 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * necessary and attempt to bring the device DMA into a ready to use 3611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 363039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 364b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczint ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 366c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz struct pci_dev *dev = to_pci_dev(hwif->dev); 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 36847b687882c02f802dd5bbe1227effe006820246eBartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_NO_AUTODMA) == 0 || 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && 3701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (dev->class & 0x80))) { 371b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz unsigned long base = ide_pci_dma_base(hwif, d); 372d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 373ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (base == 0) 374ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 375ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 376ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz hwif->dma_base = base; 377ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 378592b5315219881c6c0af4785f96456ad2043193aSergei Shtylyov if (hwif->dma_ops == NULL) 379592b5315219881c6c0af4785f96456ad2043193aSergei Shtylyov hwif->dma_ops = &sff_dma_ops; 380592b5315219881c6c0af4785f96456ad2043193aSergei Shtylyov 381ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (ide_pci_check_simplex(hwif, d) < 0) 382ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 383ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 384ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (ide_pci_set_master(dev, d->name) < 0) 385b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return -1; 386d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 387135721446144af005109c25eeacca4fdddcd9a66Bartlomiej Zolnierkiewicz if (hwif->host_flags & IDE_HFLAG_MMIO) 38863158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); 38963158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz else 39063158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", 39163158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz hwif->name, base, base + 7); 39263158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz 39363158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz hwif->extra_base = base + (hwif->channel ? 8 : 16); 39463158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz 395b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz if (ide_allocate_dma_engine(hwif)) 396b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return -1; 397b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz } 398d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 399b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return 0; 400039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz} 401c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_pci_controller - set up IDE PCI 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 406039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @noisy: verbose flag 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the PCI and controller side of the IDE interface. This brings 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * up the PCI side of the device, checks that the device is enabled 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and enables it if need be 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 413039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 414a95925a309cd9a2e7f5a5713fd70e0dadb09890cBartlomiej Zolnierkiewiczstatic int ide_setup_pci_controller(struct pci_dev *dev, 415a95925a309cd9a2e7f5a5713fd70e0dadb09890cBartlomiej Zolnierkiewicz const struct ide_port_info *d, int noisy) 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pcicmd; 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_setup_pci_noise(dev, d); 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ide_pci_enable(dev, d); 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 42928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_ERR "%s %s: error accessing PCI regs\n", 43028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ide_pci_configure(dev, d); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 43728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: device enabled (Linux)\n", 43828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_setup_ports - configure ports/devices on PCI IDE 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 448039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 4499f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz * @hw: struct ide_hw instances corresponding to this PCI IDE device 4509f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz * @hws: struct ide_hw pointers table to update 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scan the interfaces attached to this device and do any 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * necessary per port setup. Attach the devices and ask the 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * generic DMA layer to do its work for us. 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Normally called automaticall from do_ide_pci_setup_device, 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but is also used directly as a helper function by some controllers 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * where the chipset setup is not the default PCI IDE one. 4591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4608447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz 461c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewiczvoid ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, 4629f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz struct ide_hw *hw, struct ide_hw **hws) 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 464a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tmp; 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the IDE ports 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 470cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz 471a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz for (port = 0; port < channels; ++port) { 472c0ae50234771684ae0cbac5dfb70e1a09c22aa89Bartlomiej Zolnierkiewicz const struct ide_pci_enablebit *e = &d->enablebits[port]; 4738562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewicz 4741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || 475cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz (tmp & e->mask) != e->val)) { 47628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: IDE port disabled\n", 47728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev)); 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; /* port not enabled */ 479cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz } 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 48186ccf37c6acd74cf7e4b7751ee045de19943c5a0Bartlomiej Zolnierkiewicz if (ide_hw_configure(dev, d, port, hw + port)) 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 484c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz *(hws + port) = hw + port; 4851ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz } 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(ide_pci_setup_ports); 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_pci_device() looks at the primary/secondary interfaces 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * on a PCI IDE device and, if they are enabled, prepares the IDE driver 4921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for use with them. This generic code works for most PCI chipsets. 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * One thing that is not standardized is the location of the 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * primary/secondary interface "enable/disable" bits. For chipsets that 496039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * we "know" about, this information is in the struct ide_port_info; 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for all other chipsets, we just assume both interfaces are enabled. 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 499039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewiczstatic int do_ide_setup_pci_device(struct pci_dev *dev, 5008562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewicz const struct ide_port_info *d, 50151d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz u8 noisy) 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pciirq, ret; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Can we trust the reported IRQ? 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pciirq = dev->irq; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 510708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz /* 511708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz * This allows offboard ide-pci cards the enable a BIOS, 512708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz * verify interrupt settings of split-mirror pci-config 513708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz * space, place chipset into init-mode, and/or preserve 514708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz * an interrupt if the card is not native ide support. 515708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz */ 516a326b02b0c576001353dbc489154959b0889c6bfBartlomiej Zolnierkiewicz ret = d->init_chipset ? d->init_chipset(dev) : 0; 517708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz if (ret < 0) 518708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz goto out; 519708e5f9eb68589b87724af3f0fb4e681dfdfd69fBartlomiej Zolnierkiewicz 5208c6de94cfa07cf9f4651edd7e541ed4841c9f201Bartlomiej Zolnierkiewicz if (ide_pci_is_in_compatibility_mode(dev)) { 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 52228cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: not 100%% native mode: will " 52328cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz "probe irqs later\n", d->name, pci_name(dev)); 5242ed0ef543ae3f3ea4f8bd0433fb1fed22625a309Bartlomiej Zolnierkiewicz pciirq = 0; 52528cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz } else if (!pciirq && noisy) { 52628cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n", 52728cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev), pciirq); 52828cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz } else if (noisy) { 52928cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz printk(KERN_INFO "%s %s: 100%% native mode on irq %d\n", 53028cfd8af52a9ed4e5bd1751ea6bc0b8c870f68ecBartlomiej Zolnierkiewicz d->name, pci_name(dev), pciirq); 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 53351d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz ret = pciirq; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5386cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewiczint ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2, 5396cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz const struct ide_port_info *d, void *priv) 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *pdev[] = { dev1, dev2 }; 5426cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz struct ide_host *host; 543ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz int ret, i, n_ports = dev2 ? 4 : 2; 5449f36d31437922354d104a2db407f397e79e4027eBartlomiej Zolnierkiewicz struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL }; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 546ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz for (i = 0; i < n_ports / 2; i++) { 547a742d6cf0b37b1a96a1549b1fda0d6b19e0185c2Bartlomiej Zolnierkiewicz ret = ide_setup_pci_controller(pdev[i], d, !i); 548a742d6cf0b37b1a96a1549b1fda0d6b19e0185c2Bartlomiej Zolnierkiewicz if (ret < 0) 549a742d6cf0b37b1a96a1549b1fda0d6b19e0185c2Bartlomiej Zolnierkiewicz goto out; 550a742d6cf0b37b1a96a1549b1fda0d6b19e0185c2Bartlomiej Zolnierkiewicz 55186ccf37c6acd74cf7e4b7751ee045de19943c5a0Bartlomiej Zolnierkiewicz ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]); 5526cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz } 5538c2eece50a368c7986bae0b3e52739558dd71b51Bartlomiej Zolnierkiewicz 554ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz host = ide_host_alloc(d, hws, n_ports); 5556cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz if (host == NULL) { 5566cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz ret = -ENOMEM; 5576cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz goto out; 5586cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz } 5596cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz 5606cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz host->dev[0] = &dev1->dev; 561ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz if (dev2) 562ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz host->dev[1] = &dev2->dev; 5636cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz 5646cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz host->host_priv = priv; 565255115fb35f80735c21a1cbe9809e9795a3af26eBartlomiej Zolnierkiewicz host->irq_flags = IRQF_SHARED; 566255115fb35f80735c21a1cbe9809e9795a3af26eBartlomiej Zolnierkiewicz 567ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz pci_set_drvdata(pdev[0], host); 568ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz if (dev2) 569ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz pci_set_drvdata(pdev[1], host); 5706cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz 571ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz for (i = 0; i < n_ports / 2; i++) { 57251d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz ret = do_ide_setup_pci_device(pdev[i], d, !i); 57351d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: Mom, mom, they stole me the helper function to undo 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do_ide_setup_pci_device() on the first device! 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 58051d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz 5818c2eece50a368c7986bae0b3e52739558dd71b51Bartlomiej Zolnierkiewicz /* fixup IRQ */ 582f65dedfd7b75f19bde42bafbe84fddce18c42499Bartlomiej Zolnierkiewicz if (ide_pci_is_in_compatibility_mode(pdev[i])) { 5835bae8bf4508004d46487b3a18769d0ccff01c532Bartlomiej Zolnierkiewicz hw[i*2].irq = pci_get_legacy_ide_irq(pdev[i], 0); 5845bae8bf4508004d46487b3a18769d0ccff01c532Bartlomiej Zolnierkiewicz hw[i*2 + 1].irq = pci_get_legacy_ide_irq(pdev[i], 1); 585f65dedfd7b75f19bde42bafbe84fddce18c42499Bartlomiej Zolnierkiewicz } else 586f65dedfd7b75f19bde42bafbe84fddce18c42499Bartlomiej Zolnierkiewicz hw[i*2 + 1].irq = hw[i*2].irq = ret; 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5896cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz ret = ide_host_register(host, d, hws); 5906cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz if (ret) 5916cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej Zolnierkiewicz ide_host_free(host); 5921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 5941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5956cdf6eb357c2681596b7b1672b92396ba82333d4Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_init_two); 596ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 597ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewiczint ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d, 598ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz void *priv) 599ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz{ 600ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz return ide_pci_init_two(dev, NULL, d, priv); 601ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz} 602ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_init_one); 603ad7c52d0988a8965989dc06d630c52a5bde849d5Bartlomiej Zolnierkiewicz 604ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewiczvoid ide_pci_remove(struct pci_dev *dev) 605ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz{ 606ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz struct ide_host *host = pci_get_drvdata(dev); 607ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; 608ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz int bars; 609ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 610ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz if (host->host_flags & IDE_HFLAG_SINGLE) 611ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz bars = (1 << 2) - 1; 612ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz else 613ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz bars = (1 << 4) - 1; 614ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 615ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz if ((host->host_flags & IDE_HFLAG_NO_DMA) == 0) { 616ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz if (host->host_flags & IDE_HFLAG_CS5520) 617ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz bars |= (1 << 2); 618ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz else 619ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz bars |= (1 << 4); 620ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz } 621ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 622ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz ide_host_remove(host); 623ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 624ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz if (dev2) 625ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz pci_release_selected_regions(dev2, bars); 626ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz pci_release_selected_regions(dev, bars); 627ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz 628ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz if (dev2) 629ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz pci_disable_device(dev2); 630ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz pci_disable_device(dev); 631ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej Zolnierkiewicz} 632ef0b04276d8f719d754c092434fbd62c2aeb5307Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_remove); 633feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 634feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz#ifdef CONFIG_PM 635feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewiczint ide_pci_suspend(struct pci_dev *dev, pm_message_t state) 636feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz{ 637feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_save_state(dev); 638feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_disable_device(dev); 639feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_set_power_state(dev, pci_choose_state(dev, state)); 640feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 641feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz return 0; 642feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz} 643feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_suspend); 644feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 645feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewiczint ide_pci_resume(struct pci_dev *dev) 646feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz{ 647feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz struct ide_host *host = pci_get_drvdata(dev); 648feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz int rc; 649feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 650feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_set_power_state(dev, PCI_D0); 651feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 652feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz rc = pci_enable_device(dev); 653feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz if (rc) 654feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz return rc; 655feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 656feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_restore_state(dev); 657feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz pci_set_master(dev); 658feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 659feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz if (host->init_chipset) 660feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz host->init_chipset(dev); 661feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz 662feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz return 0; 663feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz} 664feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_resume); 665feb22b7f8e62b1b987a3a1dbad95af767a1df832Bartlomiej Zolnierkiewicz#endif 666