URL
https://opencores.org/ocsvn/or1k/or1k/trunk
Subversion Repositories or1k
[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [ide/] [pci/] [siimage.c] - Rev 1765
Compare with Previous | Blame | View Log
/* * linux/drivers/ide/pci/siimage.c Version 1.06 June 11, 2003 * * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> * Copyright (C) 2003 Red Hat <alan@redhat.com> * * May be copied or modified under the terms of the GNU General Public License * * Documentation available under NDA only * * * FAQ Items: * If you are using Marvell SATA-IDE adapters with Maxtor drives * ensure the system is set up for ATA100/UDMA5 not UDMA6. * * If you are using WD drives with SATA bridges you must set the * drive to "Single". "Master" will hang * * If you have strange problems with nVidia chipset systems please * see the SI support documentation and update your system BIOS * if neccessary */ #include <linux/config.h> #include <linux/types.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/delay.h> #include <linux/hdreg.h> #include <linux/ide.h> #include <linux/init.h> #include <asm/io.h> #include "ide_modes.h" #include "siimage.h" #if defined(DISPLAY_SIIMAGE_TIMINGS) && defined(CONFIG_PROC_FS) #include <linux/stat.h> #include <linux/proc_fs.h> static u8 siimage_proc = 0; #define SIIMAGE_MAX_DEVS 16 static struct pci_dev *siimage_devs[SIIMAGE_MAX_DEVS]; static int n_siimage_devs; /** * pdev_is_sata - check if device is SATA * @pdev: PCI device to check * * Returns true if this is a SATA controller */ static int pdev_is_sata(struct pci_dev *pdev) { switch(pdev->device) { case PCI_DEVICE_ID_SII_3112: case PCI_DEVICE_ID_SII_1210SA: return 1; case PCI_DEVICE_ID_SII_680: return 0; } BUG(); return 0; } /** * is_sata - check if hwif is SATA * @hwif: interface to check * * Returns true if this is a SATA controller */ static inline int is_sata(ide_hwif_t *hwif) { return pdev_is_sata(hwif->pci_dev); } /** * siimage_selreg - return register base * @hwif: interface * @r: config offset * * Turn a config register offset into the right address in either * PCI space or MMIO space to access the control register in question * Thankfully this is a configuration operation so isnt performance * criticial. */ static unsigned long siimage_selreg(ide_hwif_t *hwif, int r) { unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; if(hwif->mmio) base += (hwif->channel << 6); else base += (hwif->channel << 4); return base; } /** * siimage_seldev - return register base * @hwif: interface * @r: config offset * * Turn a config register offset into the right address in either * PCI space or MMIO space to access the control register in question * including accounting for the unit shift. */ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) { ide_hwif_t *hwif = HWIF(drive); unsigned long base = (unsigned long)hwif->hwif_data; base += 0xA0 + r; if(hwif->mmio) base += (hwif->channel << 6); else base += (hwif->channel << 4); base |= drive->select.b.unit << drive->select.b.unit; return base; } /** * print_siimage_get_info - print minimal proc information * @buf: buffer to write into (kernel space) * @dev: PCI device we are describing * @index: Controller number * * Print the basic information for the state of the CMD680/SI3112 * channel. We don't actually dump a lot of information out for * this controller although we could expand it if we needed. */ static char *print_siimage_get_info (char *buf, struct pci_dev *dev, int index) { char *p = buf; u8 mmio = (pci_get_drvdata(dev) != NULL) ? 1 : 0; unsigned long bmdma = pci_resource_start(dev, 4); if(mmio) bmdma = pci_resource_start(dev, 5); p += sprintf(p, "\nController: %d\n", index); p += sprintf(p, "SiI%x Chipset.\n", dev->device); if (mmio) p += sprintf(p, "MMIO Base 0x%lx\n", bmdma); p += sprintf(p, "%s-DMA Base 0x%lx\n", (mmio)?"MMIO":"BM", bmdma); p += sprintf(p, "%s-DMA Base 0x%lx\n", (mmio)?"MMIO":"BM", bmdma+8); return (char *)p; } /** * siimage_get_info - proc callback * @buffer: kernel buffer to complete * @addr: written with base of data to return * offset: seek offset * count: bytes to fill in * * Called when the user reads data from the virtual file for this * controller from /proc */ static int siimage_get_info (char *buffer, char **addr, off_t offset, int count) { char *p = buffer; int len; u16 i; p += sprintf(p, "\n"); for (i = 0; i < n_siimage_devs; i++) { struct pci_dev *dev = siimage_devs[i]; p = print_siimage_get_info(p, dev, i); } /* p - buffer must be less than 4k! */ len = (p - buffer) - offset; *addr = buffer + offset; return len > count ? count : len; } #endif /* defined(DISPLAY_SIIMAGE_TIMINGS) && defined(CONFIG_PROC_FS) */ /** * siimage_ratemask - Compute available modes * @drive: IDE drive * * Compute the available speeds for the devices on the interface. * For the CMD680 this depends on the clocking mode (scsc), for the * SI3312 SATA controller life is a bit simpler. Enforce UDMA33 * as a limit if there is no 80pin cable present. */ static byte siimage_ratemask (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 mode = 0, scsc = 0; unsigned long base = (unsigned long) hwif->hwif_data; if (hwif->mmio) scsc = hwif->INB(base + 0x4A); else pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc); if(is_sata(hwif)) { if(strstr(drive->id->model, "Maxtor")) return 3; return 4; } if ((scsc & 0x30) == 0x10) /* 133 */ mode = 4; else if ((scsc & 0x30) == 0x20) /* 2xPCI */ mode = 4; else if ((scsc & 0x30) == 0x00) /* 100 */ mode = 3; else /* Disabled ? */ BUG(); if (!eighty_ninty_three(drive)) mode = min(mode, (u8)1); return mode; } /** * siimage_taskfile_timing - turn timing data to a mode * @hwif: interface to query * * Read the timing data for the interface and return the * mode that is being used. */ static byte siimage_taskfile_timing (ide_hwif_t *hwif) { u16 timing = 0x328a; unsigned long addr = siimage_selreg(hwif, 2); if (hwif->mmio) timing = hwif->INW(addr); else pci_read_config_word(hwif->pci_dev, addr, &timing); switch (timing) { case 0x10c1: return 4; case 0x10c3: return 3; case 0x1104: case 0x1281: return 2; case 0x2283: return 1; case 0x328a: default: return 0; } } /** * simmage_tuneproc - tune a drive * @drive: drive to tune * @mode_wanted: the target operating mode * * Load the timing settings for this device mode into the * controller. If we are in PIO mode 3 or 4 turn on IORDY * monitoring (bit 9). The TF timing is bits 31:16 */ static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted) { ide_hwif_t *hwif = HWIF(drive); u32 speedt = 0; u16 speedp = 0; unsigned long addr = siimage_seldev(drive, 0x04); unsigned long tfaddr = siimage_selreg(hwif, 0x02); /* cheat for now and use the docs */ switch(mode_wanted) { case 4: speedp = 0x10c1; speedt = 0x10c1; break; case 3: speedp = 0x10C3; speedt = 0x10C3; break; case 2: speedp = 0x1104; speedt = 0x1281; break; case 1: speedp = 0x2283; speedt = 0x1281; break; case 0: default: speedp = 0x328A; speedt = 0x328A; break; } if (hwif->mmio) { hwif->OUTW(speedt, addr); hwif->OUTW(speedp, tfaddr); /* Now set up IORDY */ if(mode_wanted == 3 || mode_wanted == 4) hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2); else hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2); } else { pci_write_config_word(hwif->pci_dev, addr, speedp); pci_write_config_word(hwif->pci_dev, tfaddr, speedt); pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp); speedp &= ~0x200; /* Set IORDY for mode 3 or 4 */ if(mode_wanted == 3 || mode_wanted == 4) speedp |= 0x200; pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp); } } /** * config_siimage_chipset_for_pio - set drive timings * @drive: drive to tune * @speed we want * * Compute the best pio mode we can for a given device. Also honour * the timings for the driver when dealing with mixed devices. Some * of this is ugly but its all wrapped up here * * The SI680 can also do VDMA - we need to start using that * * FIXME: we use the BIOS channel timings to avoid driving the task * files too fast at the disk. We need to compute the master/slave * drive PIO mode properly so that we can up the speed on a hotplug * system. */ static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed) { u8 channel_timings = siimage_taskfile_timing(HWIF(drive)); u8 speed = 0, set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL); /* WARNING PIO timing mess is going to happen b/w devices, argh */ if ((channel_timings != set_pio) && (set_pio > channel_timings)) set_pio = channel_timings; siimage_tuneproc(drive, set_pio); speed = XFER_PIO_0 + set_pio; if (set_speed) (void) ide_config_drive_speed(drive, speed); } static void config_chipset_for_pio (ide_drive_t *drive, byte set_speed) { config_siimage_chipset_for_pio(drive, set_speed); } /** * siimage_tune_chipset - set controller timings * @drive: Drive to set up * @xferspeed: speed we want to achieve * * Tune the SII chipset for the desired mode. If we can't achieve * the desired mode then tune for a lower one, but ultimately * make the thing work. */ static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed) { u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 }; u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 }; u16 dma[] = { 0x2208, 0x10C2, 0x10C1 }; ide_hwif_t *hwif = HWIF(drive); u16 ultra = 0, multi = 0; u8 mode = 0, unit = drive->select.b.unit; u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed); unsigned long base = (unsigned long)hwif->hwif_data; u8 scsc = 0, addr_mask = ((hwif->channel) ? ((hwif->mmio) ? 0xF4 : 0x84) : ((hwif->mmio) ? 0xB4 : 0x80)); unsigned long ma = siimage_seldev(drive, 0x08); unsigned long ua = siimage_seldev(drive, 0x0C); if (hwif->mmio) { scsc = hwif->INB(base + 0x4A); mode = hwif->INB(base + addr_mask); multi = hwif->INW(ma); ultra = hwif->INW(ua); } else { pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc); pci_read_config_byte(hwif->pci_dev, addr_mask, &mode); pci_read_config_word(hwif->pci_dev, ma, &multi); pci_read_config_word(hwif->pci_dev, ua, &ultra); } mode &= ~((unit) ? 0x30 : 0x03); ultra &= ~0x3F; scsc = ((scsc & 0x30) == 0x00) ? 0 : 1; scsc = is_sata(hwif) ? 1 : scsc; switch(speed) { case XFER_PIO_4: case XFER_PIO_3: case XFER_PIO_2: case XFER_PIO_1: case XFER_PIO_0: siimage_tuneproc(drive, (speed - XFER_PIO_0)); mode |= ((unit) ? 0x10 : 0x01); break; case XFER_MW_DMA_2: case XFER_MW_DMA_1: case XFER_MW_DMA_0: multi = dma[speed - XFER_MW_DMA_0]; mode |= ((unit) ? 0x20 : 0x02); config_siimage_chipset_for_pio(drive, 0); break; 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: multi = dma[2]; ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) : (ultra5[speed - XFER_UDMA_0])); mode |= ((unit) ? 0x30 : 0x03); config_siimage_chipset_for_pio(drive, 0); break; default: return 1; } if (hwif->mmio) { hwif->OUTB(mode, base + addr_mask); hwif->OUTW(multi, ma); hwif->OUTW(ultra, ua); } else { pci_write_config_byte(hwif->pci_dev, addr_mask, mode); pci_write_config_word(hwif->pci_dev, ma, multi); pci_write_config_word(hwif->pci_dev, ua, ultra); } return (ide_config_drive_speed(drive, speed)); } /** * config_chipset_for_dma - configure for DMA * @drive: drive to configure * * Called by the IDE layer when it wants the timings set up. * For the CMD680 we also need to set up the PIO timings and * enable DMA. */ static int config_chipset_for_dma (ide_drive_t *drive) { u8 speed = ide_dma_speed(drive, siimage_ratemask(drive)); config_chipset_for_pio(drive, !speed); if (!speed) return 0; if (ide_set_xfer_rate(drive, speed)) return 0; if (!drive->init_speed) drive->init_speed = speed; return ide_dma_enable(drive); } /** * siimage_configure_drive_for_dma - set up for DMA transfers * @drive: drive we are going to set up * * Set up the drive for DMA, tune the controller and drive as * required. If the drive isn't suitable for DMA or we hit * other problems then we will drop down to PIO and set up * PIO appropriately */ static int siimage_config_drive_for_dma (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); struct hd_driveid *id = drive->id; if ((id->capability & 1) != 0 && 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) && siimage_ratemask(drive)) { 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; } } else if ((id->capability & 8) || (id->field_valid & 2)) { fast_ata_pio: no_dma_set: config_chipset_for_pio(drive, 1); return hwif->ide_dma_off_quietly(drive); } return hwif->ide_dma_on(drive); } /* returns 1 if dma irq issued, 0 otherwise */ static int siimage_io_ide_dma_test_irq (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 dma_altstat = 0; unsigned long addr = siimage_selreg(hwif, 1); /* return 1 if INTR asserted */ if ((hwif->INB(hwif->dma_status) & 4) == 4) return 1; /* return 1 if Device INTR asserted */ pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat); if (dma_altstat & 8) return 0; //return 1; return 0; } /** * siimage_mmio_ide_dma_count - DMA bytes done * @drive * * If we are doing VDMA the CMD680 requires a little bit * of more careful handling and we have to read the counts * off ourselves. For non VDMA life is normal. */ static int siimage_mmio_ide_dma_count (ide_drive_t *drive) { #ifdef SIIMAGE_VIRTUAL_DMAPIO struct request *rq = HWGROUP(drive)->rq; ide_hwif_t *hwif = HWIF(drive); u32 count = (rq->nr_sectors * SECTOR_SIZE); u32 rcount = 0; unsigned long addr = siimage_selreg(hwif, 0x1C); hwif->OUTL(count, addr); rcount = hwif->INL(addr); printk("\n%s: count = %d, rcount = %d, nr_sectors = %lu\n", drive->name, count, rcount, rq->nr_sectors); #endif /* SIIMAGE_VIRTUAL_DMAPIO */ return __ide_dma_count(drive); } /** * siimage_mmio_ide_dma_test_irq - check we caused an IRQ * @drive: drive we are testing * * Check if we caused an IDE DMA interrupt. We may also have caused * SATA status interrupts, if so we clean them up and continue. */ static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); unsigned long base = (unsigned long)hwif->hwif_data; unsigned long addr = siimage_selreg(hwif, 0x1); if (SATA_ERROR_REG) { u32 ext_stat = hwif->INL(base + 0x10); u8 watchdog = 0; if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) { u32 sata_error = hwif->INL(SATA_ERROR_REG); hwif->OUTL(sata_error, SATA_ERROR_REG); watchdog = (sata_error & 0x00680000) ? 1 : 0; #if 1 printk(KERN_WARNING "%s: sata_error = 0x%08x, " "watchdog = %d, %s\n", drive->name, sata_error, watchdog, __FUNCTION__); #endif } else { watchdog = (ext_stat & 0x8000) ? 1 : 0; } ext_stat >>= 16; if (!(ext_stat & 0x0404) && !watchdog) return 0; } /* return 1 if INTR asserted */ if ((hwif->INB(hwif->dma_status) & 0x04) == 0x04) return 1; /* return 1 if Device INTR asserted */ if ((hwif->INB(addr) & 8) == 8) return 0; //return 1; return 0; } static int siimage_mmio_ide_dma_verbose (ide_drive_t *drive) { int temp = __ide_dma_verbose(drive); return temp; } /** * siimage_busproc - bus isolation ioctl * @drive: drive to isolate/restore * @state: bus state to set * * Used by the SII3112 to handle bus isolation. As this is a * SATA controller the work required is quite limited, we * just have to clean up the statistics */ static int siimage_busproc (ide_drive_t * drive, int state) { ide_hwif_t *hwif = HWIF(drive); u32 stat_config = 0; unsigned long addr = siimage_selreg(hwif, 0); if (hwif->mmio) { stat_config = hwif->INL(addr); } else pci_read_config_dword(hwif->pci_dev, addr, &stat_config); switch (state) { case BUSSTATE_ON: hwif->drives[0].failures = 0; hwif->drives[1].failures = 0; break; case BUSSTATE_OFF: hwif->drives[0].failures = hwif->drives[0].max_failures + 1; hwif->drives[1].failures = hwif->drives[1].max_failures + 1; break; case BUSSTATE_TRISTATE: hwif->drives[0].failures = hwif->drives[0].max_failures + 1; hwif->drives[1].failures = hwif->drives[1].max_failures + 1; break; default: return -EINVAL; } hwif->bus_state = state; return 0; } /** * siimage_reset_poll - wait for sata reset * @drive: drive we are resetting * * Poll the SATA phy and see whether it has come back from the dead * yet. */ static int siimage_reset_poll (ide_drive_t *drive) { if (SATA_STATUS_REG) { ide_hwif_t *hwif = HWIF(drive); if ((hwif->INL(SATA_STATUS_REG) & 0x03) != 0x03) { printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n", hwif->name, hwif->INL(SATA_STATUS_REG)); HWGROUP(drive)->poll_timeout = 0; return ide_started; } return 0; } else { return 0; } } /** * siimage_pre_reset - reset hook * @drive: IDE device being reset * * For the SATA devices we need to handle recalibration/geometry * differently */ static void siimage_pre_reset (ide_drive_t *drive) { if (drive->media != ide_disk) return; if (is_sata(HWIF(drive))) { drive->special.b.set_geometry = 0; drive->special.b.recalibrate = 0; } } /** * siimage_reset - reset a device on an siimage controller * @drive: drive to reset * * Perform a controller level reset fo the device. For * SATA we must also check the PHY. */ static void siimage_reset (ide_drive_t *drive) { ide_hwif_t *hwif = HWIF(drive); u8 reset = 0; unsigned long addr = siimage_selreg(hwif, 0); if (hwif->mmio) { reset = hwif->INB(addr); hwif->OUTB((reset|0x03), addr); /* FIXME:posting */ udelay(25); hwif->OUTB(reset, addr); (void) hwif->INB(addr); } else { pci_read_config_byte(hwif->pci_dev, addr, &reset); pci_write_config_byte(hwif->pci_dev, addr, reset|0x03); udelay(25); pci_write_config_byte(hwif->pci_dev, addr, reset); pci_read_config_byte(hwif->pci_dev, addr, &reset); } if (SATA_STATUS_REG) { u32 sata_stat = hwif->INL(SATA_STATUS_REG); printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n", hwif->name, sata_stat, __FUNCTION__); if (!(sata_stat)) { printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n", hwif->name, sata_stat); drive->failures++; } } } /** * proc_reports_siimage - add siimage controller to proc * @dev: PCI device * @clocking: SCSC value * @name: controller name * * Report the clocking mode of the controller and add it to * the /proc interface layer */ static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name) { if(pdev_is_sata(dev)) goto sata_skip; printk(KERN_INFO "%s: BASE CLOCK ", name); clocking &= 0x03; switch(clocking) { case 0x03: printk("DISABLED !\n"); break; case 0x02: printk("== 2X PCI \n"); break; case 0x01: printk("== 133 \n"); break; case 0x00: printk("== 100 \n"); break; } sata_skip: #if defined(DISPLAY_SIIMAGE_TIMINGS) && defined(CONFIG_PROC_FS) siimage_devs[n_siimage_devs++] = dev; if (!siimage_proc) { siimage_proc = 1; ide_pci_register_host_proc(&siimage_procs[0]); } #endif /* DISPLAY_SIIMAGE_TIMINGS && CONFIG_PROC_FS */ } /** * setup_mmio_siimage - switch an SI controller into MMIO * @dev: PCI device we are configuring * @name: device name * * Attempt to put the device into mmio mode. There are some slight * complications here with certain systems where the mmio bar isnt * mapped so we have to be sure we can fall back to I/O. */ static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name) { unsigned long bar5 = pci_resource_start(dev, 5); unsigned long barsize = pci_resource_len(dev, 5); u8 tmpbyte = 0; unsigned long addr; void *ioaddr; /* * Drop back to PIO if we can't map the mmio. Some * systems seem to get terminally confused in the PCI * spaces. */ if(!request_mem_region(bar5, barsize, name)) { printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n"); return 0; } ioaddr = ioremap(bar5, barsize); if (ioaddr == NULL) { release_mem_region(bar5, barsize); return 0; } pci_set_master(dev); pci_set_drvdata(dev, ioaddr); addr = (unsigned long) ioaddr; if (pdev_is_sata(dev)) { writel(0, addr + 0x148); writel(0, addr + 0x1C8); } writeb(0, addr + 0xB4); writeb(0, addr + 0xF4); tmpbyte = readb(addr + 0x4A); switch(tmpbyte & 0x30) { case 0x00: /* In 100 MHz clocking, try and switch to 133 */ writeb(tmpbyte|0x10, addr + 0x4A); break; case 0x10: /* On 133Mhz clocking */ break; case 0x20: /* On PCIx2 clocking */ break; case 0x30: /* Clocking is disabled */ /* 133 clock attempt to force it on */ writeb(tmpbyte & ~0x20, addr + 0x4A); break; } writeb( 0x72, addr + 0xA1); writew( 0x328A, addr + 0xA2); writel(0x62DD62DD, addr + 0xA4); writel(0x43924392, addr + 0xA8); writel(0x40094009, addr + 0xAC); writeb( 0x72, addr + 0xE1); writew( 0x328A, addr + 0xE2); writel(0x62DD62DD, addr + 0xE4); writel(0x43924392, addr + 0xE8); writel(0x40094009, addr + 0xEC); if (pdev_is_sata(dev)) { writel(0xFFFF0000, addr + 0x108); writel(0xFFFF0000, addr + 0x188); writel(0x00680000, addr + 0x148); writel(0x00680000, addr + 0x1C8); } tmpbyte = readb(addr + 0x4A); proc_reports_siimage(dev, (tmpbyte>>4), name); return 1; } /** * init_chipset_siimage - set up an SI device * @dev: PCI device * @name: device name * * Perform the initial PCI set up for this device. Attempt to switch * to 133MHz clocking if the system isn't already set up to do it. */ static unsigned int __init init_chipset_siimage (struct pci_dev *dev, const char *name) { u32 class_rev = 0; u8 tmpbyte = 0; u8 BA5_EN = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255); pci_read_config_byte(dev, 0x8A, &BA5_EN); if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) { if (setup_mmio_siimage(dev, name)) { return 0; } } pci_write_config_byte(dev, 0x80, 0x00); pci_write_config_byte(dev, 0x84, 0x00); pci_read_config_byte(dev, 0x8A, &tmpbyte); switch(tmpbyte & 0x30) { case 0x00: /* 133 clock attempt to force it on */ pci_write_config_byte(dev, 0x8A, tmpbyte|0x10); case 0x30: /* if clocking is disabled */ /* 133 clock attempt to force it on */ pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20); case 0x10: /* 133 already */ break; case 0x20: /* BIOS set PCI x2 clocking */ break; } pci_read_config_byte(dev, 0x8A, &tmpbyte); pci_write_config_byte(dev, 0xA1, 0x72); pci_write_config_word(dev, 0xA2, 0x328A); pci_write_config_dword(dev, 0xA4, 0x62DD62DD); pci_write_config_dword(dev, 0xA8, 0x43924392); pci_write_config_dword(dev, 0xAC, 0x40094009); pci_write_config_byte(dev, 0xB1, 0x72); pci_write_config_word(dev, 0xB2, 0x328A); pci_write_config_dword(dev, 0xB4, 0x62DD62DD); pci_write_config_dword(dev, 0xB8, 0x43924392); pci_write_config_dword(dev, 0xBC, 0x40094009); proc_reports_siimage(dev, (tmpbyte>>4), name); return 0; } /** * init_mmio_iops_siimage - set up the iops for MMIO * @hwif: interface to set up * * The basic setup here is fairly simple, we can use standard MMIO * operations. However we do have to set the taskfile register offsets * by hand as there isnt a standard defined layout for them this * time. * * The hardware supports buffered taskfiles and also some rather nice * extended PRD tables. Unfortunately right now we don't. */ static void __init init_mmio_iops_siimage (ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; void *addr = pci_get_drvdata(dev); u8 ch = hwif->channel; hw_regs_t hw; unsigned long base; /* * Fill in the basic HWIF bits */ default_hwif_mmiops(hwif); hwif->hwif_data = addr; /* * Now set up the hw. We have to do this ourselves as * the MMIO layout isnt the same as the the standard port * based I/O */ memset(&hw, 0, sizeof(hw_regs_t)); hw.priv = addr; base = (unsigned long)addr; if(ch) base += 0xC0; else base += 0x80; /* * The buffered task file doesn't have status/control * so we can't currently use it sanely since we want to * use LBA48 mode. */ // base += 0x10; // hwif->addressing = 1; hw.io_ports[IDE_DATA_OFFSET] = base; hw.io_ports[IDE_ERROR_OFFSET] = base + 1; hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2; hw.io_ports[IDE_SECTOR_OFFSET] = base + 3; hw.io_ports[IDE_LCYL_OFFSET] = base + 4; hw.io_ports[IDE_HCYL_OFFSET] = base + 5; hw.io_ports[IDE_SELECT_OFFSET] = base + 6; hw.io_ports[IDE_STATUS_OFFSET] = base + 7; hw.io_ports[IDE_CONTROL_OFFSET] = base + 10; hw.io_ports[IDE_IRQ_OFFSET] = 0; if (pdev_is_sata(dev)) { base = (unsigned long) addr; if(ch) base += 0x80; hw.sata_scr[SATA_STATUS_OFFSET] = base + 0x104; hw.sata_scr[SATA_ERROR_OFFSET] = base + 0x108; hw.sata_scr[SATA_CONTROL_OFFSET]= base + 0x100; hw.sata_misc[SATA_MISC_OFFSET] = base + 0x140; hw.sata_misc[SATA_PHY_OFFSET] = base + 0x144; hw.sata_misc[SATA_IEN_OFFSET] = base + 0x148; } hw.irq = hwif->pci_dev->irq; memcpy(&hwif->hw, &hw, sizeof(hw)); memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports)); if (is_sata(hwif)) { memcpy(hwif->sata_scr, hwif->hw.sata_scr, sizeof(hwif->hw.sata_scr)); memcpy(hwif->sata_misc, hwif->hw.sata_misc, sizeof(hwif->hw.sata_misc)); } hwif->irq = hw.irq; base = (unsigned long) addr; #ifdef SIIMAGE_LARGE_DMA /* Watch the brackets - even Ken and Dennis get some language design wrong */ hwif->dma_base = base + (ch ? 0x18 : 0x10); hwif->dma_base2 = base + (ch ? 0x08 : 0x00); hwif->dma_prdtable = hwif->dma_base2 + 4; #else /* ! SIIMAGE_LARGE_DMA */ hwif->dma_base = base + (ch ? 0x08 : 0x00); hwif->dma_base2 = base + (ch ? 0x18 : 0x10); #endif /* SIIMAGE_LARGE_DMA */ hwif->mmio = 2; } /** * init_iops_siimage - set up iops * @hwif: interface to set up * * Do the basic setup for the SIIMAGE hardware interface * and then do the MMIO setup if we can. This is the first * look in we get for setting up the hwif so that we * can get the iops right before using them. */ static void __init init_iops_siimage (ide_hwif_t *hwif) { struct pci_dev *dev = hwif->pci_dev; u32 class_rev = 0; pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev); class_rev &= 0xff; hwif->hwif_data = 0; hwif->rqsize = 128; if (is_sata(hwif)) hwif->rqsize = 15; if (pci_get_drvdata(dev) == NULL) return; init_mmio_iops_siimage(hwif); } /** * ata66_siimage - check for 80 pin cable * @hwif: interface to check * * Check for the presence of an ATA66 capable cable on the * interface. */ static unsigned int __init ata66_siimage (ide_hwif_t *hwif) { unsigned long addr = siimage_selreg(hwif, 0); if (pci_get_drvdata(hwif->pci_dev) == NULL) { u8 ata66 = 0; pci_read_config_byte(hwif->pci_dev, addr, &ata66); return (ata66 & 0x01) ? 1 : 0; } return (hwif->INB(addr) & 0x01) ? 1 : 0; } /** * init_hwif_siimage - set up hwif structs * @hwif: interface to set up * * We do the basic set up of the interface structure. The SIIMAGE * requires several custom handlers so we override the default * ide DMA handlers appropriately */ static void __init init_hwif_siimage (ide_hwif_t *hwif) { hwif->autodma = 0; hwif->resetproc = &siimage_reset; hwif->speedproc = &siimage_tune_chipset; hwif->tuneproc = &siimage_tuneproc; hwif->reset_poll = &siimage_reset_poll; hwif->pre_reset = &siimage_pre_reset; if(is_sata(hwif)) { hwif->busproc = &siimage_busproc; hwif->sata = 1; } if (!hwif->dma_base) { hwif->drives[0].autotune = 1; hwif->drives[1].autotune = 1; return; } hwif->ultra_mask = 0x7f; hwif->mwdma_mask = 0x07; hwif->swdma_mask = 0x07; if (!is_sata(hwif)) hwif->atapi_dma = 1; hwif->ide_dma_check = &siimage_config_drive_for_dma; if (!(hwif->udma_four)) hwif->udma_four = ata66_siimage(hwif); if (hwif->mmio) { hwif->ide_dma_count = &siimage_mmio_ide_dma_count; hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq; hwif->ide_dma_verbose = &siimage_mmio_ide_dma_verbose; } else { hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq; } /* * The BIOS often doesn't set up DMA on this controller * so we always do it. */ hwif->autodma = 1; hwif->drives[0].autodma = hwif->autodma; hwif->drives[1].autodma = hwif->autodma; } /** * init_dma_siimage - set up IDE DMA * @hwif: interface * @dmabase: DMA base address to use * * For the SI chips this requires no special set up so we can just * let the IDE DMA core do the usual work. */ static void __init init_dma_siimage (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 *); /** * siimage_init_one - pci layer discovery entry * @dev: PCI device * @id: ident table entry * * Called by the PCI code when it finds an SI680 or SI3112 controller. * We then use the IDE PCI generic helper to do most of the work. */ static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id) { ide_pci_device_t *d = &siimage_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 siimage_pci_tbl[] __devinitdata = { { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, { 0, }, }; static struct pci_driver driver = { .name = "SiI IDE", .id_table = siimage_pci_tbl, .probe = siimage_init_one, }; static int siimage_ide_init(void) { return ide_pci_register_driver(&driver); } static void siimage_ide_exit(void) { ide_pci_unregister_driver(&driver); } module_init(siimage_ide_init); module_exit(siimage_ide_exit); MODULE_AUTHOR("Andre Hedrick, Alan Cox"); MODULE_DESCRIPTION("PCI driver module for SiI IDE"); MODULE_LICENSE("GPL"); EXPORT_NO_SYMBOLS;