setup-pci.c revision ebb00fb55d0566bb3e81518122a57b4b3bedf1e4
11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 259bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> 359bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 1995-1998 Mark Lord 459bca8cc995428c34d8cdfadfa87c8e3f01c4340Bartlomiej Zolnierkiewicz * Copyright (C) 2007 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> 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/pci.h> 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/init.h> 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/interrupt.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/ide.h> 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/dma-mapping.h> 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <asm/io.h> 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_pci_baseregs - place a PCI IDE controller native 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device of interface to switch native 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @name: Name of interface 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We attempt to place the PCI interface into PCI native mode. If 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we succeed the BARs are ok and the controller is in PCI mode. 26846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi * Returns 0 on success or an errno code. 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: if we program the interface and then fail to set the BARS 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * we don't switch it back to legacy mode. Do we actually care ?? 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 31846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 32846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchistatic int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 progif = 0; 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Place both IDE interfaces into PCI "native" mode: 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (progif & 5) != 5) { 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((progif & 0xa) != 0xa) { 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: device not capable of full " 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "native PCI mode\n", name); 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk("%s: placing both ports into native PCI mode\n", name); 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5); 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (progif & 5) != 5) { 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: rewrite of PROGIF failed, wanted " 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "0x%04x, got 0x%04x\n", 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds name, progif|5, progif); 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EOPNOTSUPP; 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_BLK_DEV_IDEDMA_PCI 608ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewiczstatic void ide_pci_clear_simplex(unsigned long dma_base, const char *name) 618ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz{ 628ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz u8 dma_stat = inb(dma_base + 2); 638ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 648ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz outb(dma_stat & 0x60, dma_base + 2); 658ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz dma_stat = inb(dma_base + 2); 668ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz if (dma_stat & 0x80) 678ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz printk(KERN_INFO "%s: simplex device: DMA forced\n", name); 688ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz} 698ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 71b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz * ide_pci_dma_base - setup BMIBA 72039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @hwif: IDE interface 73b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz * @d: IDE port info 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 75c58e79dd44243ec919d789193ffb35a220c54695Bartlomiej Zolnierkiewicz * Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space. 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 78b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczunsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 8036501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz struct pci_dev *dev = to_pci_dev(hwif->dev); 8136501650ec45b1db308c3b51886044863be2d762Bartlomiej Zolnierkiewicz unsigned long dma_base = 0; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 83135721446144af005109c25eeacca4fdddcd9a66Bartlomiej Zolnierkiewicz if (hwif->host_flags & IDE_HFLAG_MMIO) 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hwif->dma_base; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (hwif->mate && hwif->mate->dma_base) { 871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8); 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 899ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz u8 baridx = (d->host_flags & IDE_HFLAG_CS5520) ? 2 : 4; 909ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz 919ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz dma_base = pci_resource_start(dev, baridx); 929ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz 93aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz if (dma_base == 0) { 949ffcf364f9d0aca3ea79e9987c368eb75925460eBartlomiej Zolnierkiewicz printk(KERN_ERR "%s: DMA base is invalid\n", d->name); 95aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz return 0; 96aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz } 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 99aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz if (hwif->channel) 100aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz dma_base += 8; 101aea5d375600f132537adf45942c0fbdcd25eb995Bartlomiej Zolnierkiewicz 102ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return dma_base; 103ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz} 104ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_dma_base); 105ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 106ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewiczint ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) 107ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz{ 108ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz u8 dma_stat; 109ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 110ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) 1118ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz goto out; 1128ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 1138ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { 114ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz ide_pci_clear_simplex(hwif->dma_base, d->name); 1158ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz goto out; 1168ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz } 1178ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz 1188ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz /* 1198ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * If the device claims "simplex" DMA, this means that only one of 1208ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the two interfaces can be trusted with DMA at any point in time 1218ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * (so we should enable DMA only on one of the two interfaces). 1228ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * 1238ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * FIXME: At this point we haven't probed the drives so we can't make 1248ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the appropriate decision. Really we should defer this problem until 1258ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * we tune the drive then try to grab DMA ownership if we want to be 1268ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz * the DMA end. This has to be become dynamic to handle hot-plug. 1278ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz */ 128ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz dma_stat = hwif->read_sff_dma_status(hwif); 1298ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { 1308ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewicz printk(KERN_INFO "%s: simplex device: DMA disabled\n", d->name); 131ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1338ac2b42a45896641ed292deaf038a1d2703d85a6Bartlomiej Zolnierkiewiczout: 134ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return 0; 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 136ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_check_simplex); 137d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 138d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz/* 139d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz * Set up BM-DMA capability (PnP BIOS should have done this) 140d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz */ 141b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczint ide_pci_set_master(struct pci_dev *dev, const char *name) 142d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz{ 143d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz u16 pcicmd; 144d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 145d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz pci_read_config_word(dev, PCI_COMMAND, &pcicmd); 146d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 147d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz if ((pcicmd & PCI_COMMAND_MASTER) == 0) { 148d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz pci_set_master(dev); 149d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 150d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || 151d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz (pcicmd & PCI_COMMAND_MASTER) == 0) { 152d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz printk(KERN_ERR "%s: error updating PCICMD on %s\n", 153d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz name, pci_name(dev)); 154d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz return -EIO; 155d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz } 156d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz } 157d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 158d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz return 0; 159d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz} 160b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej ZolnierkiewiczEXPORT_SYMBOL_GPL(ide_pci_set_master); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1638562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczvoid ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d) 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 165bde07e5eab1351109007bf375349f295977e7f53Bartlomiej Zolnierkiewicz printk(KERN_INFO "%s: IDE controller (0x%04x:0x%04x rev 0x%02x) at " 166bde07e5eab1351109007bf375349f295977e7f53Bartlomiej Zolnierkiewicz " PCI slot %s\n", d->name, dev->vendor, dev->device, 167bde07e5eab1351109007bf375349f295977e7f53Bartlomiej Zolnierkiewicz dev->revision, pci_name(dev)); 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(ide_setup_pci_noise); 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 1731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_enable - do PCI enables 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 175039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Enable the IDE PCI device. We attempt to enable the device in full 1780948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * but if that fails then we only need IO space. The PCI code should 1790948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * have setup the proper resources for us already for controllers in 1800948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt * legacy mode. 181846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi * 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns zero on success or an error code 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 184039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 1858562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczstatic int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 1870d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz int ret, bars; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_enable_device(dev)) { 1900948391641918b95d8d96c15089eb5ac156850b3Benjamin Herrenschmidt ret = pci_enable_device_io(dev); 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 1921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "%s: (ide_setup_pci_device:) " 1931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "Could not enable device.\n", d->name); 1941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "%s: BIOS configuration fixed.\n", d->name); 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 200039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * assume all devices can do 32-bit DMA for now, we can add 201039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * a DMA mask field to the struct ide_port_info if we need it 202039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * (or let lower level driver set the DMA mask) 2031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = pci_set_dma_mask(dev, DMA_32BIT_MASK); 2051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 2061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: can't set dma mask\n", d->name); 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 2081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2100d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_SINGLE) 2110d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars = (1 << 2) - 1; 2120d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz else 2130d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars = (1 << 4) - 1; 2141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2150d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { 2160d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (d->host_flags & IDE_HFLAG_CS5520) 2170d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars |= (1 << 2); 2180d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz else 2190d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz bars |= (1 << 4); 2200d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz } 2210d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz 2220d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz ret = pci_request_selected_regions(dev, bars, d->name); 2230d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz if (ret < 0) 2240d1bad216c43bcee84cc24d1ed003c19134d2645Bartlomiej Zolnierkiewicz printk(KERN_ERR "%s: can't reserve resources\n", d->name); 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_configure - configure an unconfigured device 2311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 232039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 2331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Enable and configure the PCI device we have been passed. 2351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns zero on success or an error code. 2361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 237039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 2388562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczstatic int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) 2391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pcicmd = 0; 2411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 2421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * PnP BIOS was *supposed* to have setup this device, but we 2431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * can do it ourselves, so long as the BIOS has assigned an IRQ 2441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (or possibly the device is using a "legacy header" for IRQs). 2451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Maybe the user deliberately *disabled* the device, 2461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but we'll eventually ignore it again if no drives respond. 2471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 248846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi if (ide_setup_pci_baseregs(dev, d->name) || 249846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { 2501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: device disabled (BIOS)\n", d->name); 2511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENODEV; 2521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { 2541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); 2551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EIO; 2561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(pcicmd & PCI_COMMAND_IO)) { 2581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: unable to enable IDE controller\n", d->name); 2591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -ENXIO; 2601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 2611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_check_iomem - check a register is I/O 266039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @dev: PCI device 267039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 268039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @bar: BAR number 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2701baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov * Checks if a BAR is configured and points to MMIO space. If so, 2711baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov * return an error code. Otherwise return 0 2721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 273039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 2741baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyovstatic int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, 2751baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov int bar) 2761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ulong flags = pci_resource_flags(dev, bar); 278846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 2791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Unconfigured ? */ 2801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!flags || pci_resource_len(dev, bar) == 0) 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2831baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov /* I/O space */ 2841baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov if (flags & IORESOURCE_IO) 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 286846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Bad */ 2881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return -EINVAL; 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_configure - configure an IDE interface 2931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device holding interface 294039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 2951ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz * @port: port number 2961ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz * @irq: PCI IRQ 297c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz * @hw: hw_regs_t instance corresponding to this port 2981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Perform the initial set up for the hardware interface structure. This 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * is done per interface port rather than per PCI device. There may be 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * more than one port per device. 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Returns the new hardware interface structure, or NULL on a failure 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 305039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 3061ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewiczstatic ide_hwif_t *ide_hwif_configure(struct pci_dev *dev, 3071ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz const struct ide_port_info *d, 308c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz unsigned int port, int irq, 309c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw_regs_t *hw) 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long ctl = 0, base = 0; 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_hwif_t *hwif; 3131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 314a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { 3151baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov if (ide_pci_check_iomem(dev, d, 2 * port) || 3161baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov ide_pci_check_iomem(dev, d, 2 * port + 1)) { 3171baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov printk(KERN_ERR "%s: I/O baseregs (BIOS) are reported " 3181baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov "as MEM for port %d!\n", d->name, port); 3191baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov return NULL; 3201baccff8a5823b51d7bf2740ef3ef17e06bfa7e2Sergei Shtylyov } 321846bb88ae8980b98b11e0298c7ab8cfc9539c3f6Paolo Ciarrocchi 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctl = pci_resource_start(dev, 2*port+1); 3231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = pci_resource_start(dev, 2*port); 324c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz } else { 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Use default values */ 3261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ctl = port ? 0x374 : 0x3f4; 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds base = port ? 0x170 : 0x1f0; 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 329bad7c825cb27377faf1c926953aa15c980c62620Bartlomiej Zolnierkiewicz 330c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz if (!base || !ctl) { 331c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz printk(KERN_ERR "%s: bad PCI BARs for port %d, skipping\n", 332c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz d->name, port); 333c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz return NULL; 334c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz } 335c1da678b5b4d8ce7836ed1ded80109d1db37efe0Bartlomiej Zolnierkiewicz 336c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz memset(hw, 0, sizeof(*hw)); 337c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw->irq = irq; 338c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw->dev = &dev->dev; 339c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw->chipset = d->chipset ? d->chipset : ide_pci; 340c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_std_init_ports(hw, base, ctl | 2); 341c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz 342fe80b937c9917887e4fbfaaf52f498b5ac3a6999Bartlomiej Zolnierkiewicz hwif = ide_find_port_slot(d); 343eb3aff5530d22eb4be0a99c9d39c9ffde7b9891aBartlomiej Zolnierkiewicz if (hwif == NULL) 344bad7c825cb27377faf1c926953aa15c980c62620Bartlomiej Zolnierkiewicz return NULL; 34579127c37aa5d959c9ace40a869386f712b55ac6dBartlomiej Zolnierkiewicz 346c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hwif->chipset = hw->chipset; 34779127c37aa5d959c9ace40a869386f712b55ac6dBartlomiej Zolnierkiewicz 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return hwif; 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 351c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz#ifdef CONFIG_BLK_DEV_IDEDMA_PCI 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_hwif_setup_dma - configure DMA interface 354039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @hwif: IDE interface 355c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz * @d: IDE port info 3561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the DMA base for the interface. Enable the master bits as 3581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * necessary and attempt to bring the device DMA into a ready to use 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state 3601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 361039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 362b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewiczint ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 364c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz struct pci_dev *dev = to_pci_dev(hwif->dev); 3651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 36647b687882c02f802dd5bbe1227effe006820246eBartlomiej Zolnierkiewicz if ((d->host_flags & IDE_HFLAG_NO_AUTODMA) == 0 || 3671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds (dev->class & 0x80))) { 369b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz unsigned long base = ide_pci_dma_base(hwif, d); 370d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 371ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (base == 0) 372ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 373ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 374ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz hwif->dma_base = base; 375ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 376ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (ide_pci_check_simplex(hwif, d) < 0) 377ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz return -1; 378ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz 379ebb00fb55d0566bb3e81518122a57b4b3bedf1e4Bartlomiej Zolnierkiewicz if (ide_pci_set_master(dev, d->name) < 0) 380b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return -1; 381d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 382135721446144af005109c25eeacca4fdddcd9a66Bartlomiej Zolnierkiewicz if (hwif->host_flags & IDE_HFLAG_MMIO) 38363158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); 38463158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz else 38563158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", 38663158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz hwif->name, base, base + 7); 38763158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz 38863158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz hwif->extra_base = base + (hwif->channel ? 8 : 16); 38963158d5c217e2e62665ae9b10d203bd7da817108Bartlomiej Zolnierkiewicz 390b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz if (ide_allocate_dma_engine(hwif)) 391b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return -1; 392d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 39381e8d5a34f7d2a2acbe309cfa5810a9699a63239Bartlomiej Zolnierkiewicz hwif->dma_ops = &sff_dma_ops; 394b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz } 395d54452fbf84500eff77a55a2061f4669441d2cc3Bartlomiej Zolnierkiewicz 396b123f56e04c7c112f754f948198d1ea5a80e649dBartlomiej Zolnierkiewicz return 0; 397039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz} 398c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ 3991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_setup_pci_controller - set up IDE PCI 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 403039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @noisy: verbose flag 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @config: returned as 1 if we configured the hardware 4061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the PCI and controller side of the IDE interface. This brings 4081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * up the PCI side of the device, checks that the device is enabled 4091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and enables it if need be 4101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 411039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz 4128562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczstatic int ide_setup_pci_controller(struct pci_dev *dev, const struct ide_port_info *d, int noisy, int *config) 4131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 4151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u16 pcicmd; 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ide_setup_pci_noise(dev, d); 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ide_pci_enable(dev, d); 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); 4251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) { 4261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_ERR "%s: error accessing PCI regs\n", d->name); 4271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ 4301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ide_pci_configure(dev, d); 4311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 4321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 4331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds *config = 1; 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: device enabled (Linux)\n", d->name); 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 4361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 4381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 4391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * ide_pci_setup_ports - configure ports/devices on PCI IDE 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @dev: PCI device 444039788e1532368eeca1071a873c14e03920cdf38Bartlomiej Zolnierkiewicz * @d: IDE port info 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @pciirq: IRQ line 4468447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz * @idx: ATA index table to update 447c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz * @hw: hw_regs_t instances corresponding to this PCI IDE device 448c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz * @hws: hw_regs_t pointers table to update 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Scan the interfaces attached to this device and do any 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * necessary per port setup. Attach the devices and ask the 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * generic DMA layer to do its work for us. 4531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Normally called automaticall from do_ide_pci_setup_device, 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * but is also used directly as a helper function by some controllers 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * where the chipset setup is not the default PCI IDE one. 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4588447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz 459c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewiczvoid ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, 460c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz int pciirq, u8 *idx, hw_regs_t *hw, hw_regs_t **hws) 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 462a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; 463c413b9b94d9a8e7548cc4b2e04b7df0439ce76fdBartlomiej Zolnierkiewicz ide_hwif_t *hwif; 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds u8 tmp; 4651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Set up the IDE ports 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 469cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz 470a5d8c5c834d3cabf4b7b477c3f6ee923c25026fcBartlomiej Zolnierkiewicz for (port = 0; port < channels; ++port) { 4718562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewicz const ide_pci_enablebit_t *e = &(d->enablebits[port]); 4728562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewicz 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || 474cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz (tmp & e->mask) != e->val)) { 475cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz printk(KERN_INFO "%s: IDE port disabled\n", d->name); 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; /* port not enabled */ 477cf6e854efb3682322351a21e64058ffc13250914Bartlomiej Zolnierkiewicz } 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 479c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hwif = ide_hwif_configure(dev, d, port, pciirq, hw + port); 4801ebf74936b1fccb5b65940f99ccddd74ec4d1fefBartlomiej Zolnierkiewicz if (hwif == NULL) 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds continue; 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 483c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz *(hws + port) = hw + port; 4848447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz *(idx + port) = hwif->index; 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 tried_config = 0; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int pciirq, ret; 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = ide_setup_pci_controller(dev, d, noisy, &tried_config); 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Can we trust the reported IRQ? 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pciirq = dev->irq; 5141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Is it an "IDE storage" device in non-PCI mode? */ 5161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) { 5171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 5181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: not 100%% native mode: " 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds "will probe irqs later\n", d->name); 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This allows offboard ide-pci cards the enable a BIOS, 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * verify interrupt settings of split-mirror pci-config 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * space, place chipset into init-mode, and/or preserve 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * an interrupt if the card is not native ide support. 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = d->init_chipset ? d->init_chipset(dev, d->name) : 0; 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pciirq = ret; 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (tried_config) { 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: will probe irqs later\n", d->name); 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pciirq = 0; 5341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else if (!pciirq) { 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_WARNING "%s: bad irq (%d): will probe later\n", 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds d->name, pciirq); 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds pciirq = 0; 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } else { 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (d->init_chipset) { 5411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ret = d->init_chipset(dev, d->name); 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (noisy) 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_INFO "%s: 100%% native mode on irq %d\n", 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds d->name, pciirq); 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 55051d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz ret = pciirq; 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5558562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewiczint ide_setup_pci_device(struct pci_dev *dev, const struct ide_port_info *d) 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5578447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; 558c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret; 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 56151d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz ret = do_ide_setup_pci_device(dev, d, 1); 56251d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz 56351d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz if (ret >= 0) { 56451d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz /* FIXME: silent failure can happen */ 565c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_pci_setup_ports(dev, d, ret, &idx[0], &hw[0], &hws[0]); 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 567c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_device_add(idx, d, hws); 56851d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz } 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(ide_setup_pci_device); 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsint ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2, 5758562043606430185cad26d085d46adcc7ad67fd1Bartlomiej Zolnierkiewicz const struct ide_port_info *d) 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct pci_dev *pdev[] = { dev1, dev2 }; 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int ret, i; 579c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz hw_regs_t hw[4], *hws[] = { NULL, NULL, NULL, NULL }; 5808447d9d52adbe4c653482bd0d5ccb9b5d26f9c9dBartlomiej Zolnierkiewicz u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds for (i = 0; i < 2; i++) { 58351d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz ret = do_ide_setup_pci_device(pdev[i], d, !i); 58451d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * FIXME: Mom, mom, they stole me the helper function to undo 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * do_ide_setup_pci_device() on the first device! 5881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (ret < 0) 5901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds goto out; 59151d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz 59251d87ed0aab98999bebaf891b99730e15502a592Bartlomiej Zolnierkiewicz /* FIXME: silent failure can happen */ 593c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_pci_setup_ports(pdev[i], d, ret, &idx[i*2], &hw[i*2], 594c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz &hws[i*2]); 5951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 5961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 597c97c6aca75fd5f718056fde7cff798b8cbdb07c0Bartlomiej Zolnierkiewicz ide_device_add(idx, d, hws); 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsout: 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ret; 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus TorvaldsEXPORT_SYMBOL_GPL(ide_setup_pci_devices); 602