/* * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz> * Copyright (C) 2007 Bartlomiej Zolnierkiewicz * * May be copied or modified under the terms of the GNU General Public License * * * Thanks : * * SiS Taiwan : for direct support and hardware. * Daniela Engert : for initial ATA100 advices and numerous others. * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt : * for checking code correctness, providing patches. * * * Original tests and design on the SiS620 chipset. * ATA100 tests and design on the SiS735 chipset. * ATA16/33 support from specs * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw> * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz> * * Documentation: * SiS chipset documentation available under NDA to companies only * (not to individuals). */ /* * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511 * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip. * * Later SiS chipsets integrated the 5513 functionality into the NorthBridge, * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We * can figure out that we have a more modern and more capable 5513 by looking * for the respective NorthBridge IDs. * * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513 * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI * ID, while the now ATA-133 capable 5513 still has the same PCI ID. * Fortunately the 5513 can be 'unmasked' by fiddling with some config space * bits, changing its device id to the true one - 5517 for 961 and 5518 for * 962/963. */ #include <linux/types.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/ide.h> #define DRV_NAME "sis5513" /* registers layout and init values are chipset family dependant */ #define ATA_16 0x01 #define ATA_33 0x02 #define ATA_66 0x03 #define ATA_100a 0x04 /* SiS730/SiS550 is ATA100 with ATA66 layout */ #define ATA_100 0x05 #define ATA_133a 0x06 /* SiS961b with 133 support */ #define ATA_133 0x07 /* SiS962/963 */ static u8 chipset_family; /* * Devices supported */ static const struct { const char *name; u16 host_id; u8 chipset_family; u8 flags; } SiSHostChipInfo[] = { { "SiS968", PCI_DEVICE_ID_SI_968, ATA_133 }, { "SiS966", PCI_DEVICE_ID_SI_966, ATA_133 }, { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 }, { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 }, { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 }, { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 }, { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 }, { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 }, { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a }, { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a }, { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 }, { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 }, { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 }, { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 }, { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 }, { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 }, { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 }, { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 }, { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 }, { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 }, { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 }, { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 }, { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 }, { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 }, { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 }, }; /* Cycle time bits and values vary across chip dma capabilities These three arrays hold the register layout and the values to set. Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */ /* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */ static u8 cycle_time_offset[] = { 0, 0, 5, 4, 4, 0, 0 }; static u8 cycle_time_range[] = { 0, 0, 2, 3, 3, 4, 4 }; static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ { 3, 2, 1, 0, 0, 0, 0 }, /* ATA_33 */ { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_66 */ { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_100a (730 specific), different cycle_time range and offset */ { 11, 7, 5, 4, 2, 1, 0 }, /* ATA_100 */ { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133a (earliest 691 southbridges) */ { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133 */ }; /* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133 See SiS962 data sheet for more detail */ static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ { 2, 1, 1, 0, 0, 0, 0 }, { 4, 3, 2, 1, 0, 0, 0 }, { 4, 3, 2, 1, 0, 0, 0 }, { 6, 4, 3, 1, 1, 1, 0 }, { 9, 6, 4, 2, 2, 2, 2 }, { 9, 6, 4, 2, 2, 2, 2 }, }; /* Initialize time, Active time, Recovery time vary across IDE clock settings. These 3 arrays hold the register value for PIO0/1/2/3/4 and DMA0/1/2 mode in order */ static u8 ini_time_value[][8] = { { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 2, 1, 0, 0, 0, 1, 0, 0 }, { 4, 3, 1, 1, 1, 3, 1, 1 }, { 4, 3, 1, 1, 1, 3, 1, 1 }, { 6, 4, 2, 2, 2, 4, 2, 2 }, { 9, 6, 3, 3, 3, 6, 3, 3 }, { 9, 6, 3, 3, 3, 6, 3, 3 }, }; static u8 act_time_value[][8] = { { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 9, 9, 9, 2, 2, 7, 2, 2 }, { 19, 19, 19, 5, 4, 14, 5, 4 }, { 19, 19, 19, 5, 4, 14, 5, 4 }, { 28, 28, 28, 7, 6, 21, 7, 6 }, { 38, 38, 38, 10, 9, 28, 10, 9 }, { 38, 38, 38, 10, 9, 28, 10, 9 }, }; static u8 rco_time_value[][8] = { { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 9, 2, 0, 2, 0, 7, 1, 1 }, { 19, 5, 1, 5, 2, 16, 3, 2 }, { 19, 5, 1, 5, 2, 16, 3, 2 }, { 30, 9, 3, 9, 4, 25, 6, 4 }, { 40, 12, 4, 12, 5, 34, 12, 5 }, { 40, 12, 4, 12, 5, 34, 12, 5 }, }; /* * Printing configuration */ /* Used for chipset type printing at boot time */ static char *chipset_capability[] = { "ATA", "ATA 16", "ATA 33", "ATA 66", "ATA 100 (1st gen)", "ATA 100 (2nd gen)", "ATA 133 (1st gen)", "ATA 133 (2nd gen)" }; /* * Configuration functions */ static u8 sis_ata133_get_base(ide_drive_t *drive) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u32 reg54 = 0; pci_read_config_dword(dev, 0x54, ®54); return ((reg54 & 0x40000000) ? 0x70 : 0x40) + drive->dn * 4; } static void sis_ata16_program_timings(ide_drive_t *drive, const u8 mode) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u16 t1 = 0; u8 drive_pci = 0x40 + drive->dn * 2; const u16 pio_timings[] = { 0x000, 0x607, 0x404, 0x303, 0x301 }; const u16 mwdma_timings[] = { 0x008, 0x302, 0x301 }; pci_read_config_word(dev, drive_pci, &t1); /* clear active/recovery timings */ t1 &= ~0x070f; if (mode >= XFER_MW_DMA_0) { if (chipset_family > ATA_16) t1 &= ~0x8000; /* disable UDMA */ t1 |= mwdma_timings[mode - XFER_MW_DMA_0]; } else t1 |= pio_timings[mode - XFER_PIO_0]; pci_write_config_word(dev, drive_pci, t1); } static void sis_ata100_program_timings(ide_drive_t *drive, const u8 mode) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u8 t1, drive_pci = 0x40 + drive->dn * 2; /* timing bits: 7:4 active 3:0 recovery */ const u8 pio_timings[] = { 0x00, 0x67, 0x44, 0x33, 0x31 }; const u8 mwdma_timings[] = { 0x08, 0x32, 0x31 }; if (mode >= XFER_MW_DMA_0) { u8 t2 = 0; pci_read_config_byte(dev, drive_pci, &t2); t2 &= ~0x80; /* disable UDMA */ pci_write_config_byte(dev, drive_pci, t2); t1 = mwdma_timings[mode - XFER_MW_DMA_0]; } else t1 = pio_timings[mode - XFER_PIO_0]; pci_write_config_byte(dev, drive_pci + 1, t1); } static void sis_ata133_program_timings(ide_drive_t *drive, const u8 mode) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u32 t1 = 0; u8 drive_pci = sis_ata133_get_base(drive), clk, idx; pci_read_config_dword(dev, drive_pci, &t1); t1 &= 0xc0c00fff; clk = (t1 & 0x08) ? ATA_133 : ATA_100; if (mode >= XFER_MW_DMA_0) { t1 &= ~0x04; /* disable UDMA */ idx = mode - XFER_MW_DMA_0 + 5; } else idx = mode - XFER_PIO_0; t1 |= ini_time_value[clk][idx] << 12; t1 |= act_time_value[clk][idx] << 16; t1 |= rco_time_value[clk][idx] << 24; pci_write_config_dword(dev, drive_pci, t1); } static void sis_program_timings(ide_drive_t *drive, const u8 mode) { if (chipset_family < ATA_100) /* ATA_16/33/66/100a */ sis_ata16_program_timings(drive, mode); else if (chipset_family < ATA_133) /* ATA_100/133a */ sis_ata100_program_timings(drive, mode); else /* ATA_133 */ sis_ata133_program_timings(drive, mode); } static void config_drive_art_rwp(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; struct pci_dev *dev = to_pci_dev(hwif->dev); u8 reg4bh = 0; u8 rw_prefetch = 0; pci_read_config_byte(dev, 0x4b, ®4bh); if (drive->media == ide_disk) rw_prefetch = 0x11 << drive->dn; if ((reg4bh & (0x11 << drive->dn)) != rw_prefetch) pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch); } static void sis_set_pio_mode(ide_drive_t *drive, const u8 pio) { config_drive_art_rwp(drive); sis_program_timings(drive, XFER_PIO_0 + pio); } static void sis_ata133_program_udma_timings(ide_drive_t *drive, const u8 mode) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u32 regdw = 0; u8 drive_pci = sis_ata133_get_base(drive), clk, idx; pci_read_config_dword(dev, drive_pci, ®dw); regdw |= 0x04; regdw &= 0xfffff00f; /* check if ATA133 enable */ clk = (regdw & 0x08) ? ATA_133 : ATA_100; idx = mode - XFER_UDMA_0; regdw |= cycle_time_value[clk][idx] << 4; regdw |= cvs_time_value[clk][idx] << 8; pci_write_config_dword(dev, drive_pci, regdw); } static void sis_ata33_program_udma_timings(ide_drive_t *drive, const u8 mode) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u8 drive_pci = 0x40 + drive->dn * 2, reg = 0, i = chipset_family; pci_read_config_byte(dev, drive_pci + 1, ®); /* force the UDMA bit on if we want to use UDMA */ reg |= 0x80; /* clean reg cycle time bits */ reg &= ~((0xff >> (8 - cycle_time_range[i])) << cycle_time_offset[i]); /* set reg cycle time bits */ reg |= cycle_time_value[i][mode - XFER_UDMA_0] << cycle_time_offset[i]; pci_write_config_byte(dev, drive_pci + 1, reg); } static void sis_program_udma_timings(ide_drive_t *drive, const u8 mode) { if (chipset_family >= ATA_133) /* ATA_133 */ sis_ata133_program_udma_timings(drive, mode); else /* ATA_33/66/100a/100/133a */ sis_ata33_program_udma_timings(drive, mode); } static void sis_set_dma_mode(ide_drive_t *drive, const u8 speed) { if (speed >= XFER_UDMA_0) sis_program_udma_timings(drive, speed); else sis_program_timings(drive, speed); } static u8 sis_ata133_udma_filter(ide_drive_t *drive) { struct pci_dev *dev = to_pci_dev(drive->hwif->dev); u32 regdw = 0; u8 drive_pci = sis_ata133_get_base(drive); pci_read_config_dword(dev, drive_pci, ®dw); /* if ATA133 disable, we should not set speed above UDMA5 */ return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5; } static int __devinit sis_find_family(struct pci_dev *dev) { struct pci_dev *host; int i = 0; chipset_family = 0; for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) { host = pci_get_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL); if (!host) continue; chipset_family = SiSHostChipInfo[i].chipset_family; /* Special case for SiS630 : 630S/ET is ATA_100a */ if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) { if (host->revision >= 0x30) chipset_family = ATA_100a; } pci_dev_put(host); printk(KERN_INFO DRV_NAME " %s: %s %s controller\n", pci_name(dev), SiSHostChipInfo[i].name, chipset_capability[chipset_family]); } if (!chipset_family) { /* Belongs to pci-quirks */ u32 idemisc; u16 trueid; /* Disable ID masking and register remapping */ pci_read_config_dword(dev, 0x54, &idemisc); pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff)); pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); pci_write_config_dword(dev, 0x54, idemisc); if (trueid == 0x5518) { printk(KERN_INFO DRV_NAME " %s: SiS 962/963 MuTIOL IDE UDMA133 controller\n", pci_name(dev)); chipset_family = ATA_133; /* Check for 5513 compability mapping * We must use this, else the port enabled code will fail, * as it expects the enablebits at 0x4a. */ if ((idemisc & 0x40000000) == 0) { pci_write_config_dword(dev, 0x54, idemisc | 0x40000000); printk(KERN_INFO DRV_NAME " %s: Switching to 5513 register mapping\n", pci_name(dev)); } } } if (!chipset_family) { /* Belongs to pci-quirks */ struct pci_dev *lpc_bridge; u16 trueid; u8 prefctl; u8 idecfg; pci_read_config_byte(dev, 0x4a, &idecfg); pci_write_config_byte(dev, 0x4a, idecfg | 0x10); pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); pci_write_config_byte(dev, 0x4a, idecfg); if (trueid == 0x5517) { /* SiS 961/961B */ lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */ pci_read_config_byte(dev, 0x49, &prefctl); pci_dev_put(lpc_bridge); if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) { printk(KERN_INFO DRV_NAME " %s: SiS 961B MuTIOL IDE UDMA133 controller\n", pci_name(dev)); chipset_family = ATA_133a; } else { printk(KERN_INFO DRV_NAME " %s: SiS 961 MuTIOL IDE UDMA100 controller\n", pci_name(dev)); chipset_family = ATA_100; } } } return chipset_family; } static unsigned int init_chipset_sis5513(struct pci_dev *dev) { /* Make general config ops here 1/ tell IDE channels to operate in Compatibility mode only 2/ tell old chips to allow per drive IDE timings */ u8 reg; u16 regw; switch (chipset_family) { case ATA_133: /* SiS962 operation mode */ pci_read_config_word(dev, 0x50, ®w); if (regw & 0x08) pci_write_config_word(dev, 0x50, regw&0xfff7); pci_read_config_word(dev, 0x52, ®w); if (regw & 0x08) pci_write_config_word(dev, 0x52, regw&0xfff7); break; case ATA_133a: case ATA_100: /* Fixup latency */ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80); /* Set compatibility bit */ pci_read_config_byte(dev, 0x49, ®); if (!(reg & 0x01)) pci_write_config_byte(dev, 0x49, reg|0x01); break; case ATA_100a: case ATA_66: /* Fixup latency */ pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10); /* On ATA_66 chips the bit was elsewhere */ pci_read_config_byte(dev, 0x52, ®); if (!(reg & 0x04)) pci_write_config_byte(dev, 0x52, reg|0x04); break; case ATA_33: /* On ATA_33 we didn't have a single bit to set */ pci_read_config_byte(dev, 0x09, ®); if ((reg & 0x0f) != 0x00) pci_write_config_byte(dev, 0x09, reg&0xf0); case ATA_16: /* force per drive recovery and active timings needed on ATA_33 and below chips */ pci_read_config_byte(dev, 0x52, ®); if (!(reg & 0x08)) pci_write_config_byte(dev, 0x52, reg|0x08); break; } return 0; } struct sis_laptop { u16 device; u16 subvendor; u16 subdevice; }; static const struct sis_laptop sis_laptop[] = { /* devid, subvendor, subdev */ { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */ { 0x5513, 0x1734, 0x105f }, /* FSC Amilo A1630 */ { 0x5513, 0x1071, 0x8640 }, /* EasyNote K5305 */ /* end marker */ { 0, } }; static u8 sis_cable_detect(ide_hwif_t *hwif) { struct pci_dev *pdev = to_pci_dev(hwif->dev); const struct sis_laptop *lap = &sis_laptop[0]; u8 ata66 = 0; while (lap->device) { if (lap->device == pdev->device && lap->subvendor == pdev->subsystem_vendor && lap->subdevice == pdev->subsystem_device) return ATA_CBL_PATA40_SHORT; lap++; } if (chipset_family >= ATA_133) { u16 regw = 0; u16 reg_addr = hwif->channel ? 0x52: 0x50; pci_read_config_word(pdev, reg_addr, ®w); ata66 = (regw & 0x8000) ? 0 : 1; } else if (chipset_family >= ATA_66) { u8 reg48h = 0; u8 mask = hwif->channel ? 0x20 : 0x10; pci_read_config_byte(pdev, 0x48, ®48h); ata66 = (reg48h & mask) ? 0 : 1; } return ata66 ? ATA_CBL_PATA80 : ATA_CBL_PATA40; } static const struct ide_port_ops sis_port_ops = { .set_pio_mode = sis_set_pio_mode, .set_dma_mode = sis_set_dma_mode, .cable_detect = sis_cable_detect, }; static const struct ide_port_ops sis_ata133_port_ops = { .set_pio_mode = sis_set_pio_mode, .set_dma_mode = sis_set_dma_mode, .udma_filter = sis_ata133_udma_filter, .cable_detect = sis_cable_detect, }; static const struct ide_port_info sis5513_chipset __devinitdata = { .name = DRV_NAME, .init_chipset = init_chipset_sis5513, .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, .host_flags = IDE_HFLAG_LEGACY_IRQS | IDE_HFLAG_NO_AUTODMA, .pio_mask = ATA_PIO4, .mwdma_mask = ATA_MWDMA2, }; static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id) { struct ide_port_info d = sis5513_chipset; u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f }; int rc; rc = pci_enable_device(dev); if (rc) return rc; if (sis_find_family(dev) == 0) return -ENOTSUPP; if (chipset_family >= ATA_133) d.port_ops = &sis_ata133_port_ops; else d.port_ops = &sis_port_ops; d.udma_mask = udma_rates[chipset_family]; return ide_pci_init_one(dev, &d, NULL); } static void __devexit sis5513_remove(struct pci_dev *dev) { ide_pci_remove(dev); pci_disable_device(dev); } static const struct pci_device_id sis5513_pci_tbl[] = { { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5513), 0 }, { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5518), 0 }, { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_1180), 0 }, { 0, }, }; MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl); static struct pci_driver sis5513_pci_driver = { .name = "SIS_IDE", .id_table = sis5513_pci_tbl, .probe = sis5513_init_one, .remove = __devexit_p(sis5513_remove), .suspend = ide_pci_suspend, .resume = ide_pci_resume, }; static int __init sis5513_ide_init(void) { return ide_pci_register_driver(&sis5513_pci_driver); } static void __exit sis5513_ide_exit(void) { pci_unregister_driver(&sis5513_pci_driver); } module_init(sis5513_ide_init); module_exit(sis5513_ide_exit); MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik"); MODULE_DESCRIPTION("PCI driver module for SIS IDE"); MODULE_LICENSE("GPL"); /* * TODO: * - CLEANUP * - More checks in the config registers (force values instead of * relying on the BIOS setting them correctly). * - Further optimisations ? * . for example ATA66+ regs 0x48 & 0x4A */