/* * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003 * * Copyright (C) 1999-2000 Andre Hedrick * Copyright (C) 2002 Lionel Bouton , Maintainer * Copyright (C) 2003 Vojtech Pavlik * 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 * ATA133 961/962/963 fixes by Vojtech Pavlik * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ide-timing.h" #include "ide_modes.h" #include "sis5513.h" /* 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[] = { { "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 }, { "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), differences are on 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)" }; #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) #include #include static u8 sis_proc = 0; static struct pci_dev *bmide_dev; static char* cable_type[] = { "80 pins", "40 pins" }; static char* recovery_time[] ={ "12 PCICLK", "1 PCICLK", "2 PCICLK", "3 PCICLK", "4 PCICLK", "5 PCICLCK", "6 PCICLK", "7 PCICLCK", "8 PCICLK", "9 PCICLCK", "10 PCICLK", "11 PCICLK", "13 PCICLK", "14 PCICLK", "15 PCICLK", "15 PCICLK" }; static char* active_time[] = { "8 PCICLK", "1 PCICLCK", "2 PCICLK", "3 PCICLK", "4 PCICLK", "5 PCICLK", "6 PCICLK", "12 PCICLK" }; static char* cycle_time[] = { "Reserved", "2 CLK", "3 CLK", "4 CLK", "5 CLK", "6 CLK", "7 CLK", "8 CLK", "9 CLK", "10 CLK", "11 CLK", "12 CLK", "13 CLK", "14 CLK", "15 CLK", "16 CLK" }; /* Generic add master or slave info function */ static char* get_drives_info (char *buffer, u8 pos) { u8 reg00, reg01, reg10, reg11; /* timing registers */ u32 regdw0, regdw1; char* p = buffer; /* Postwrite/Prefetch */ if (chipset_family < ATA_133) { pci_read_config_byte(bmide_dev, 0x4b, ®00); p += sprintf(p, "Drive %d: Postwrite %s \t \t Postwrite %s\n", pos, (reg00 & (0x10 << pos)) ? "Enabled" : "Disabled", (reg00 & (0x40 << pos)) ? "Enabled" : "Disabled"); p += sprintf(p, " Prefetch %s \t \t Prefetch %s\n", (reg00 & (0x01 << pos)) ? "Enabled" : "Disabled", (reg00 & (0x04 << pos)) ? "Enabled" : "Disabled"); pci_read_config_byte(bmide_dev, 0x40+2*pos, ®00); pci_read_config_byte(bmide_dev, 0x41+2*pos, ®01); pci_read_config_byte(bmide_dev, 0x44+2*pos, ®10); pci_read_config_byte(bmide_dev, 0x45+2*pos, ®11); } else { u32 reg54h; u8 drive_pci = 0x40; pci_read_config_dword(bmide_dev, 0x54, ®54h); if (reg54h & 0x40000000) { // Configuration space remapped to 0x70 drive_pci = 0x70; } pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos, ®dw0); pci_read_config_dword(bmide_dev, (unsigned long)drive_pci+4*pos+8, ®dw1); p += sprintf(p, "Drive %d:\n", pos); } /* UDMA */ if (chipset_family >= ATA_133) { p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n", (regdw0 & 0x04) ? "Enabled" : "Disabled", (regdw1 & 0x04) ? "Enabled" : "Disabled"); p += sprintf(p, " UDMA Cycle Time %s \t UDMA Cycle Time %s\n", cycle_time[(regdw0 & 0xF0) >> 4], cycle_time[(regdw1 & 0xF0) >> 4]); } else if (chipset_family >= ATA_33) { p += sprintf(p, " UDMA %s \t \t \t UDMA %s\n", (reg01 & 0x80) ? "Enabled" : "Disabled", (reg11 & 0x80) ? "Enabled" : "Disabled"); p += sprintf(p, " UDMA Cycle Time "); switch(chipset_family) { case ATA_33: p += sprintf(p, cycle_time[(reg01 & 0x60) >> 5]); break; case ATA_66: case ATA_100a: p += sprintf(p, cycle_time[(reg01 & 0x70) >> 4]); break; case ATA_100: case ATA_133a: p += sprintf(p, cycle_time[reg01 & 0x0F]); break; default: p += sprintf(p, "?"); break; } p += sprintf(p, " \t UDMA Cycle Time "); switch(chipset_family) { case ATA_33: p += sprintf(p, cycle_time[(reg11 & 0x60) >> 5]); break; case ATA_66: case ATA_100a: p += sprintf(p, cycle_time[(reg11 & 0x70) >> 4]); break; case ATA_100: case ATA_133a: p += sprintf(p, cycle_time[reg11 & 0x0F]); break; default: p += sprintf(p, "?"); break; } p += sprintf(p, "\n"); } if (chipset_family < ATA_133) { /* else case TODO */ /* Data Active */ p += sprintf(p, " Data Active Time "); switch(chipset_family) { case ATA_16: /* confirmed */ case ATA_33: case ATA_66: case ATA_100a: p += sprintf(p, active_time[reg01 & 0x07]); break; case ATA_100: case ATA_133a: p += sprintf(p, active_time[(reg00 & 0x70) >> 4]); break; default: p += sprintf(p, "?"); break; } p += sprintf(p, " \t Data Active Time "); switch(chipset_family) { case ATA_16: case ATA_33: case ATA_66: case ATA_100a: p += sprintf(p, active_time[reg11 & 0x07]); break; case ATA_100: case ATA_133a: p += sprintf(p, active_time[(reg10 & 0x70) >> 4]); break; default: p += sprintf(p, "?"); break; } p += sprintf(p, "\n"); /* Data Recovery */ /* warning: may need (reg&0x07) for pre ATA66 chips */ p += sprintf(p, " Data Recovery Time %s \t Data Recovery Time %s\n", recovery_time[reg00 & 0x0f], recovery_time[reg10 & 0x0f]); } return p; } static char* get_masters_info(char* buffer) { return get_drives_info(buffer, 0); } static char* get_slaves_info(char* buffer) { return get_drives_info(buffer, 1); } /* Main get_info, called on /proc/ide/sis reads */ static int sis_get_info (char *buffer, char **addr, off_t offset, int count) { char *p = buffer; int len; u8 reg; u16 reg2, reg3; p += sprintf(p, "\nSiS 5513 "); switch(chipset_family) { case ATA_16: p += sprintf(p, "DMA 16"); break; case ATA_33: p += sprintf(p, "Ultra 33"); break; case ATA_66: p += sprintf(p, "Ultra 66"); break; case ATA_100a: case ATA_100: p += sprintf(p, "Ultra 100"); break; case ATA_133a: case ATA_133: p += sprintf(p, "Ultra 133"); break; default: p+= sprintf(p, "Unknown???"); break; } p += sprintf(p, " chipset\n"); p += sprintf(p, "--------------- Primary Channel " "---------------- Secondary Channel " "-------------\n"); /* Status */ pci_read_config_byte(bmide_dev, 0x4a, ®); if (chipset_family == ATA_133) { pci_read_config_word(bmide_dev, 0x50, ®2); pci_read_config_word(bmide_dev, 0x52, ®3); } p += sprintf(p, "Channel Status: "); if (chipset_family < ATA_66) { p += sprintf(p, "%s \t \t \t \t %s\n", (reg & 0x04) ? "On" : "Off", (reg & 0x02) ? "On" : "Off"); } else if (chipset_family < ATA_133) { p += sprintf(p, "%s \t \t \t \t %s \n", (reg & 0x02) ? "On" : "Off", (reg & 0x04) ? "On" : "Off"); } else { /* ATA_133 */ p += sprintf(p, "%s \t \t \t \t %s \n", (reg2 & 0x02) ? "On" : "Off", (reg3 & 0x02) ? "On" : "Off"); } /* Operation Mode */ pci_read_config_byte(bmide_dev, 0x09, ®); p += sprintf(p, "Operation Mode: %s \t \t \t %s \n", (reg & 0x01) ? "Native" : "Compatible", (reg & 0x04) ? "Native" : "Compatible"); /* 80-pin cable ? */ if (chipset_family >= ATA_133) { p += sprintf(p, "Cable Type: %s \t \t \t %s\n", (reg2 & 0x01) ? cable_type[1] : cable_type[0], (reg3 & 0x01) ? cable_type[1] : cable_type[0]); } else if (chipset_family > ATA_33) { pci_read_config_byte(bmide_dev, 0x48, ®); p += sprintf(p, "Cable Type: %s \t \t \t %s\n", (reg & 0x10) ? cable_type[1] : cable_type[0], (reg & 0x20) ? cable_type[1] : cable_type[0]); } /* Prefetch Count */ if (chipset_family < ATA_133) { pci_read_config_word(bmide_dev, 0x4c, ®2); pci_read_config_word(bmide_dev, 0x4e, ®3); p += sprintf(p, "Prefetch Count: %d \t \t \t \t %d\n", reg2, reg3); } p = get_masters_info(p); p = get_slaves_info(p); len = (p - buffer) - offset; *addr = buffer + offset; return len > count ? count : len; } #endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */ static u8 sis5513_ratemask (ide_drive_t *drive) { u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 }; u8 mode = rates[chipset_family]; if (!eighty_ninty_three(drive)) mode = min(mode, (u8)1); return mode; } /* * Configuration functions */ /* Enables per-drive prefetch and postwrite */ static void config_drive_art_rwp (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 reg4bh = 0; u8 rw_prefetch = (0x11 << drive->dn); if (drive->media != ide_disk) return; pci_read_config_byte(dev, 0x4b, ®4bh); if ((reg4bh & rw_prefetch) != rw_prefetch) pci_write_config_byte(dev, 0x4b, reg4bh|rw_prefetch); } /* Set per-drive active and recovery time */ static void config_art_rwp_pio (ide_drive_t *drive, u8 pio) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 timing, drive_pci, test1, test2; u16 eide_pio_timing[6] = {600, 390, 240, 180, 120, 90}; u16 xfer_pio = drive->id->eide_pio_modes; config_drive_art_rwp(drive); pio = ide_get_best_pio_mode(drive, 255, pio, NULL); if (xfer_pio> 4) xfer_pio = 0; if (drive->id->eide_pio_iordy > 0) { for (xfer_pio = 5; (xfer_pio > 0) && (drive->id->eide_pio_iordy > eide_pio_timing[xfer_pio]); xfer_pio--); } else { xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 : (drive->id->eide_pio_modes & 2) ? 0x04 : (drive->id->eide_pio_modes & 1) ? 0x03 : xfer_pio; } timing = (xfer_pio >= pio) ? xfer_pio : pio; /* In pre ATA_133 case, drives sit at 0x40 + 4*drive->dn */ drive_pci = 0x40; /* In SiS962 case drives sit at (0x40 or 0x70) + 8*drive->dn) */ if (chipset_family >= ATA_133) { u32 reg54h; pci_read_config_dword(dev, 0x54, ®54h); if (reg54h & 0x40000000) drive_pci = 0x70; drive_pci += ((drive->dn)*0x4); } else { drive_pci += ((drive->dn)*0x2); } /* register layout changed with newer ATA100 chips */ if (chipset_family < ATA_100) { pci_read_config_byte(dev, drive_pci, &test1); pci_read_config_byte(dev, drive_pci+1, &test2); /* Clear active and recovery timings */ test1 &= ~0x0F; test2 &= ~0x07; switch(timing) { case 4: test1 |= 0x01; test2 |= 0x03; break; case 3: test1 |= 0x03; test2 |= 0x03; break; case 2: test1 |= 0x04; test2 |= 0x04; break; case 1: test1 |= 0x07; test2 |= 0x06; break; default: break; } pci_write_config_byte(dev, drive_pci, test1); pci_write_config_byte(dev, drive_pci+1, test2); } else if (chipset_family < ATA_133) { switch(timing) { /* active recovery v v */ case 4: test1 = 0x30|0x01; break; case 3: test1 = 0x30|0x03; break; case 2: test1 = 0x40|0x04; break; case 1: test1 = 0x60|0x07; break; default: break; } pci_write_config_byte(dev, drive_pci, test1); } else { /* ATA_133 */ u32 test3; pci_read_config_dword(dev, drive_pci, &test3); test3 &= 0xc0c00fff; if (test3 & 0x08) { test3 |= (unsigned long)ini_time_value[ATA_133][timing] << 12; test3 |= (unsigned long)act_time_value[ATA_133][timing] << 16; test3 |= (unsigned long)rco_time_value[ATA_133][timing] << 24; } else { test3 |= (unsigned long)ini_time_value[ATA_100][timing] << 12; test3 |= (unsigned long)act_time_value[ATA_100][timing] << 16; test3 |= (unsigned long)rco_time_value[ATA_100][timing] << 24; } pci_write_config_dword(dev, drive_pci, test3); } } static int config_chipset_for_pio (ide_drive_t *drive, u8 pio) { if (pio == 255) pio = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO) - XFER_PIO_0; config_art_rwp_pio(drive, pio); return ide_config_drive_speed(drive, XFER_PIO_0 + min_t(u8, pio, 4)); } static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed) { ide_hwif_t *hwif = HWIF(drive); struct pci_dev *dev = hwif->pci_dev; u8 drive_pci, reg, speed; u32 regdw; speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed); /* See config_art_rwp_pio for drive pci config registers */ drive_pci = 0x40; if (chipset_family >= ATA_133) { u32 reg54h; pci_read_config_dword(dev, 0x54, ®54h); if (reg54h & 0x40000000) drive_pci = 0x70; drive_pci += ((drive->dn)*0x4); pci_read_config_dword(dev, (unsigned long)drive_pci, ®dw); /* Disable UDMA bit for non UDMA modes on UDMA chips */ if (speed < XFER_UDMA_0) { regdw &= 0xfffffffb; pci_write_config_dword(dev, (unsigned long)drive_pci, regdw); } } else { drive_pci += ((drive->dn)*0x2); pci_read_config_byte(dev, drive_pci+1, ®); /* Disable UDMA bit for non UDMA modes on UDMA chips */ if ((speed < XFER_UDMA_0) && (chipset_family > ATA_16)) { reg &= 0x7F; pci_write_config_byte(dev, drive_pci+1, reg); } } /* Config chip for mode */ switch(speed) { case XFER_UDMA_6: case XFER_UDMA_5: case XFER_UDMA_4: case XFER_UDMA_3: case XFER_UDMA_2: case XFER_UDMA_1: case XFER_UDMA_0: if (chipset_family >= ATA_133) { regdw |= 0x04; regdw &= 0xfffff00f; /* check if ATA133 enable */ if (regdw & 0x08) { regdw |= (unsigned long)cycle_time_value[ATA_133][speed-XFER_UDMA_0] << 4; regdw |= (unsigned long)cvs_time_value[ATA_133][speed-XFER_UDMA_0] << 8; } else { /* if ATA133 disable, we should not set speed above UDMA5 */ if (speed > XFER_UDMA_5) speed = XFER_UDMA_5; regdw |= (unsigned long)cycle_time_value[ATA_100][speed-XFER_UDMA_0] << 4; regdw |= (unsigned long)cvs_time_value[ATA_100][speed-XFER_UDMA_0] << 8; } pci_write_config_dword(dev, (unsigned long)drive_pci, regdw); } else { /* Force the UDMA bit on if we want to use UDMA */ reg |= 0x80; /* clean reg cycle time bits */ reg &= ~((0xFF >> (8 - cycle_time_range[chipset_family])) << cycle_time_offset[chipset_family]); /* set reg cycle time bits */ reg |= cycle_time_value[chipset_family][speed-XFER_UDMA_0] << cycle_time_offset[chipset_family]; pci_write_config_byte(dev, drive_pci+1, reg); } break; case XFER_MW_DMA_2: case XFER_MW_DMA_1: case XFER_MW_DMA_0: case XFER_SW_DMA_2: case XFER_SW_DMA_1: case XFER_SW_DMA_0: break; case XFER_PIO_4: return((int) config_chipset_for_pio(drive, 4)); case XFER_PIO_3: return((int) config_chipset_for_pio(drive, 3)); case XFER_PIO_2: return((int) config_chipset_for_pio(drive, 2)); case XFER_PIO_1: return((int) config_chipset_for_pio(drive, 1)); case XFER_PIO_0: default: return((int) config_chipset_for_pio(drive, 0)); } return ((int) ide_config_drive_speed(drive, speed)); } static void sis5513_tune_drive (ide_drive_t *drive, u8 pio) { (void) config_chipset_for_pio(drive, pio); } /* * ((id->hw_config & 0x4000|0x2000) && (HWIF(drive)->udma_four)) */ static int config_chipset_for_dma (ide_drive_t *drive) { u8 speed = ide_dma_speed(drive, sis5513_ratemask(drive)); #ifdef DEBUG printk("SIS5513: config_chipset_for_dma, drive %d, ultra %x\n", drive->dn, drive->id->dma_ultra); #endif if (!(speed)) return 0; sis5513_tune_chipset(drive, speed); return ide_dma_enable(drive); } static int sis5513_config_drive_xfer_rate (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct hd_driveid *id = drive->id; drive->init_speed = 0; if ((id->capability & 1) && drive->autodma) { /* Consult the list of known "bad" drives */ if (hwif->ide_dma_bad_drive(drive)) goto fast_ata_pio; if (id->field_valid & 4) { if (id->dma_ultra & hwif->ultra_mask) { /* Force if Capable UltraDMA */ int dma = config_chipset_for_dma(drive); if ((id->field_valid & 2) && !dma) goto try_dma_modes; } } else if (id->field_valid & 2) { try_dma_modes: if ((id->dma_mword & hwif->mwdma_mask) || (id->dma_1word & hwif->swdma_mask)) { /* Force if Capable regular DMA modes */ if (!config_chipset_for_dma(drive)) goto no_dma_set; } } else if (hwif->ide_dma_good_drive(drive) && (id->eide_dma_time < 150)) { /* Consult the list of known "good" drives */ if (!config_chipset_for_dma(drive)) goto no_dma_set; } else { goto fast_ata_pio; } return hwif->ide_dma_on(drive); } else if ((id->capability & 8) || (id->field_valid & 2)) { fast_ata_pio: no_dma_set: sis5513_tune_drive(drive, 5); return hwif->ide_dma_off_quietly(drive); } /* IORDY not supported */ return 0; } /* initiates/aborts (U)DMA read/write operations on a drive. */ static int sis5513_config_xfer_rate (ide_drive_t *drive) { config_drive_art_rwp(drive); config_art_rwp_pio(drive, 5); return sis5513_config_drive_xfer_rate(drive); } /* Future simpler config_xfer_rate : When ide_find_best_mode is made bad-drive aware - remove config_drive_xfer_rate and config_chipset_for_dma, - replace config_xfer_rate with the following static int sis5513_config_xfer_rate (ide_drive_t *drive) { u16 w80 = HWIF(drive)->udma_four; u16 speed; config_drive_art_rwp(drive); config_art_rwp_pio(drive, 5); speed = ide_find_best_mode(drive, XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA | (chipset_family >= ATA_33 ? XFER_UDMA : 0) | (w80 && chipset_family >= ATA_66 ? XFER_UDMA_66 : 0) | (w80 && chipset_family >= ATA_100a ? XFER_UDMA_100 : 0) | (w80 && chipset_family >= ATA_133a ? XFER_UDMA_133 : 0)); sis5513_tune_chipset(drive, speed); if (drive->autodma && (speed & XFER_MODE) != XFER_PIO) return HWIF(drive)->ide_dma_on(drive); return HWIF(drive)->ide_dma_off_quietly(drive); } */ /* Chip detection and general config */ static unsigned int __init init_chipset_sis5513 (struct pci_dev *dev, const char *name) { struct pci_dev *host; int i = 0; chipset_family = 0; for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) { host = pci_find_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) { u8 hostrev; pci_read_config_byte(host, PCI_REVISION_ID, &hostrev); if (hostrev >= 0x30) chipset_family = ATA_100a; } printk(KERN_INFO "SIS5513: %s %s controller\n", 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 "SIS5513: SiS 962/963 MuTIOL IDE UDMA133 controller\n"); chipset_family = ATA_133; } } if (!chipset_family) { /* Belongs to pci-quirks */ struct pci_dev *lpc_bridge; u16 trueid; u8 prefctl; u8 idecfg; u8 sbrev; 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_find_slot(0x00, 0x10); /* Bus 0, Dev 2, Fn 0 */ pci_read_config_byte(lpc_bridge, PCI_REVISION_ID, &sbrev); pci_read_config_byte(dev, 0x49, &prefctl); if (sbrev == 0x10 && (prefctl & 0x80)) { printk(KERN_INFO "SIS5513: SiS 961B MuTIOL IDE UDMA133 controller\n"); chipset_family = ATA_133a; } else { printk(KERN_INFO "SIS5513: SiS 961 MuTIOL IDE UDMA100 controller\n"); chipset_family = ATA_100; } } } if (!chipset_family) return -1; /* 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; } #if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) if (!sis_proc) { sis_proc = 1; bmide_dev = dev; ide_pci_register_host_proc(&sis_procs[0]); } #endif } return 0; } static unsigned int __init ata66_sis5513 (ide_hwif_t *hwif) { u8 ata66 = 0; if (chipset_family >= ATA_133) { u16 regw = 0; u16 reg_addr = hwif->channel ? 0x52: 0x50; pci_read_config_word(hwif->pci_dev, 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(hwif->pci_dev, 0x48, ®48h); ata66 = (reg48h & mask) ? 0 : 1; } return ata66; } static void __init init_hwif_sis5513 (ide_hwif_t *hwif) { hwif->autodma = 0; if (!hwif->irq) hwif->irq = hwif->channel ? 15 : 14; hwif->tuneproc = &sis5513_tune_drive; hwif->speedproc = &sis5513_tune_chipset; if (!(hwif->dma_base)) { hwif->drives[0].autotune = 1; hwif->drives[1].autotune = 1; return; } hwif->atapi_dma = 1; hwif->ultra_mask = 0x7f; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; if (!chipset_family) return; if (!(hwif->udma_four)) hwif->udma_four = ata66_sis5513(hwif); if (chipset_family > ATA_16) { hwif->ide_dma_check = &sis5513_config_xfer_rate; if (!noautodma) hwif->autodma = 1; } hwif->drives[0].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma; return; } static void __init init_dma_sis5513 (ide_hwif_t *hwif, unsigned long dmabase) { ide_setup_dma(hwif, dmabase, 8); } extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *); static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id) { ide_pci_device_t *d = &sis5513_chipsets[id->driver_data]; if (dev->device != d->device) BUG(); ide_setup_pci_device(dev, d); MOD_INC_USE_COUNT; return 0; } static struct pci_device_id sis5513_pci_tbl[] __devinitdata = { { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { 0, }, }; static struct pci_driver driver = { .name = "SIS IDE", .id_table = sis5513_pci_tbl, .probe = sis5513_init_one, }; static int sis5513_ide_init(void) { return ide_pci_register_driver(&driver); } static void sis5513_ide_exit(void) { ide_pci_unregister_driver(&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"); EXPORT_NO_SYMBOLS; /* * TODO: * - CLEANUP * - Use drivers/ide/ide-timing.h ! * - 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 */