diff options
Diffstat (limited to 'drivers/ide/pci/sis5513.c')
| -rw-r--r-- | drivers/ide/pci/sis5513.c | 984 |
1 files changed, 984 insertions, 0 deletions
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c new file mode 100644 index 0000000..9d70ba5 --- /dev/null +++ b/drivers/ide/pci/sis5513.c @@ -0,0 +1,984 @@ +/* + * linux/drivers/ide/pci/sis5513.c Version 0.16ac+vp Jun 18, 2003 + * + * 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> + * 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/config.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/timer.h> +#include <linux/mm.h> +#include <linux/ioport.h> +#include <linux/blkdev.h> +#include <linux/hdreg.h> + +#include <linux/interrupt.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/ide.h> + +#include <asm/irq.h> + +#include "ide-timing.h" + +#define DISPLAY_SIS_TIMINGS + +/* 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 <linux/stat.h> +#include <linux/proc_fs.h> + +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 && (id->capability & 1) && drive->autodma) { + + if (ide_use_dma(drive)) { + if (config_chipset_for_dma(drive)) + return hwif->ide_dma_on(drive); + } + + goto fast_ata_pio; + + } else if ((id->capability & 8) || (id->field_valid & 2)) { +fast_ata_pio: + 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; + + /* 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 "SIS5513: Switching to 5513 register mapping\n"); + } + } + } + + 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_create_host_proc("sis", sis_get_info); + } +#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 ide_pci_device_t sis5513_chipset __devinitdata = { + .name = "SIS5513", + .init_chipset = init_chipset_sis5513, + .init_hwif = init_hwif_sis5513, + .channels = 2, + .autodma = NOAUTODMA, + .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, + .bootable = ON_BOARD, +}; + +static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id) +{ + return ide_setup_pci_device(dev, &sis5513_chipset); +} + +static struct pci_device_id sis5513_pci_tbl[] = { + { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + { PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5518, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + { 0, }, +}; +MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl); + +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); +} + +module_init(sis5513_ide_init); + +MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik"); +MODULE_DESCRIPTION("PCI driver module for SIS IDE"); +MODULE_LICENSE("GPL"); + +/* + * 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 + */ |