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Diffstat (limited to 'drivers/ide/alim15x3.c')
-rw-r--r--drivers/ide/alim15x3.c602
1 files changed, 0 insertions, 602 deletions
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
deleted file mode 100644
index 3265970aee34..000000000000
--- a/drivers/ide/alim15x3.c
+++ /dev/null
@@ -1,602 +0,0 @@
-/*
- * Copyright (C) 1998-2000 Michel Aubry, Maintainer
- * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
- * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
- *
- * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
- * May be copied or modified under the terms of the GNU General Public License
- * Copyright (C) 2002 Alan Cox
- * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
- * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
- * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz
- *
- * (U)DMA capable version of ali 1533/1543(C), 1535(D)
- *
- **********************************************************************
- * 9/7/99 --Parts from the above author are included and need to be
- * converted into standard interface, once I finish the thought.
- *
- * Recent changes
- * Don't use LBA48 mode on ALi <= 0xC4
- * Don't poke 0x79 with a non ALi northbridge
- * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang)
- * Allow UDMA6 on revisions > 0xC4
- *
- * Documentation
- * Chipset documentation available under NDA only
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-
-#include <asm/io.h>
-
-#define DRV_NAME "alim15x3"
-
-/*
- * ALi devices are not plug in. Otherwise these static values would
- * need to go. They ought to go away anyway
- */
-
-static u8 m5229_revision;
-static u8 chip_is_1543c_e;
-static struct pci_dev *isa_dev;
-
-static void ali_fifo_control(ide_hwif_t *hwif, ide_drive_t *drive, int on)
-{
- struct pci_dev *pdev = to_pci_dev(hwif->dev);
- int pio_fifo = 0x54 + hwif->channel;
- u8 fifo;
- int shift = 4 * (drive->dn & 1);
-
- pci_read_config_byte(pdev, pio_fifo, &fifo);
- fifo &= ~(0x0F << shift);
- fifo |= (on << shift);
- pci_write_config_byte(pdev, pio_fifo, fifo);
-}
-
-static void ali_program_timings(ide_hwif_t *hwif, ide_drive_t *drive,
- struct ide_timing *t, u8 ultra)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- int port = hwif->channel ? 0x5c : 0x58;
- int udmat = 0x56 + hwif->channel;
- u8 unit = drive->dn & 1, udma;
- int shift = 4 * unit;
-
- /* Set up the UDMA */
- pci_read_config_byte(dev, udmat, &udma);
- udma &= ~(0x0F << shift);
- udma |= ultra << shift;
- pci_write_config_byte(dev, udmat, udma);
-
- if (t == NULL)
- return;
-
- t->setup = clamp_val(t->setup, 1, 8) & 7;
- t->act8b = clamp_val(t->act8b, 1, 8) & 7;
- t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
- t->active = clamp_val(t->active, 1, 8) & 7;
- t->recover = clamp_val(t->recover, 1, 16) & 15;
-
- pci_write_config_byte(dev, port, t->setup);
- pci_write_config_byte(dev, port + 1, (t->act8b << 4) | t->rec8b);
- pci_write_config_byte(dev, port + unit + 2,
- (t->active << 4) | t->recover);
-}
-
-/**
- * ali_set_pio_mode - set host controller for PIO mode
- * @hwif: port
- * @drive: drive
- *
- * Program the controller for the given PIO mode.
- */
-
-static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- ide_drive_t *pair = ide_get_pair_dev(drive);
- int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
- unsigned long T = 1000000 / bus_speed; /* PCI clock based */
- struct ide_timing t;
-
- ide_timing_compute(drive, drive->pio_mode, &t, T, 1);
- if (pair) {
- struct ide_timing p;
-
- ide_timing_compute(pair, pair->pio_mode, &p, T, 1);
- ide_timing_merge(&p, &t, &t,
- IDE_TIMING_SETUP | IDE_TIMING_8BIT);
- if (pair->dma_mode) {
- ide_timing_compute(pair, pair->dma_mode, &p, T, 1);
- ide_timing_merge(&p, &t, &t,
- IDE_TIMING_SETUP | IDE_TIMING_8BIT);
- }
- }
-
- /*
- * PIO mode => ATA FIFO on, ATAPI FIFO off
- */
- ali_fifo_control(hwif, drive, (drive->media == ide_disk) ? 0x05 : 0x00);
-
- ali_program_timings(hwif, drive, &t, 0);
-}
-
-/**
- * ali_udma_filter - compute UDMA mask
- * @drive: IDE device
- *
- * Return available UDMA modes.
- *
- * The actual rules for the ALi are:
- * No UDMA on revisions <= 0x20
- * Disk only for revisions < 0xC2
- * Not WDC drives on M1543C-E (?)
- */
-
-static u8 ali_udma_filter(ide_drive_t *drive)
-{
- if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
- if (drive->media != ide_disk)
- return 0;
- if (chip_is_1543c_e &&
- strstr((char *)&drive->id[ATA_ID_PROD], "WDC "))
- return 0;
- }
-
- return drive->hwif->ultra_mask;
-}
-
-/**
- * ali_set_dma_mode - set host controller for DMA mode
- * @hwif: port
- * @drive: drive
- *
- * Configure the hardware for the desired IDE transfer mode.
- */
-
-static void ali_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
-{
- static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- ide_drive_t *pair = ide_get_pair_dev(drive);
- int bus_speed = ide_pci_clk ? ide_pci_clk : 33;
- unsigned long T = 1000000 / bus_speed; /* PCI clock based */
- const u8 speed = drive->dma_mode;
- u8 tmpbyte = 0x00;
- struct ide_timing t;
-
- if (speed < XFER_UDMA_0) {
- ide_timing_compute(drive, drive->dma_mode, &t, T, 1);
- if (pair) {
- struct ide_timing p;
-
- ide_timing_compute(pair, pair->pio_mode, &p, T, 1);
- ide_timing_merge(&p, &t, &t,
- IDE_TIMING_SETUP | IDE_TIMING_8BIT);
- if (pair->dma_mode) {
- ide_timing_compute(pair, pair->dma_mode,
- &p, T, 1);
- ide_timing_merge(&p, &t, &t,
- IDE_TIMING_SETUP | IDE_TIMING_8BIT);
- }
- }
- ali_program_timings(hwif, drive, &t, 0);
- } else {
- ali_program_timings(hwif, drive, NULL,
- udma_timing[speed - XFER_UDMA_0]);
- if (speed >= XFER_UDMA_3) {
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- tmpbyte |= 1;
- pci_write_config_byte(dev, 0x4b, tmpbyte);
- }
- }
-}
-
-/**
- * ali_dma_check - DMA check
- * @drive: target device
- * @cmd: command
- *
- * Returns 1 if the DMA cannot be performed, zero on success.
- */
-
-static int ali_dma_check(ide_drive_t *drive, struct ide_cmd *cmd)
-{
- if (m5229_revision < 0xC2 && drive->media != ide_disk) {
- if (cmd->tf_flags & IDE_TFLAG_WRITE)
- return 1; /* try PIO instead of DMA */
- }
- return 0;
-}
-
-/**
- * init_chipset_ali15x3 - Initialise an ALi IDE controller
- * @dev: PCI device
- *
- * This function initializes the ALI IDE controller and where
- * appropriate also sets up the 1533 southbridge.
- */
-
-static int init_chipset_ali15x3(struct pci_dev *dev)
-{
- unsigned long flags;
- u8 tmpbyte;
- struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0));
-
- m5229_revision = dev->revision;
-
- isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
-
- local_irq_save(flags);
-
- if (m5229_revision < 0xC2) {
- /*
- * revision 0x20 (1543-E, 1543-F)
- * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
- * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- /*
- * clear bit 7
- */
- pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
- /*
- * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
- */
- if (m5229_revision >= 0x20 && isa_dev) {
- pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
- chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
- }
- goto out;
- }
-
- /*
- * 1543C-B?, 1535, 1535D, 1553
- * Note 1: not all "motherboard" support this detection
- * Note 2: if no udma 66 device, the detection may "error".
- * but in this case, we will not set the device to
- * ultra 66, the detection result is not important
- */
-
- /*
- * enable "Cable Detection", m5229, 0x4b, bit3
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
-
- /*
- * We should only tune the 1533 enable if we are using an ALi
- * North bridge. We might have no north found on some zany
- * box without a device at 0:0.0. The ALi bridge will be at
- * 0:0.0 so if we didn't find one we know what is cooking.
- */
- if (north && north->vendor != PCI_VENDOR_ID_AL)
- goto out;
-
- if (m5229_revision < 0xC5 && isa_dev)
- {
- /*
- * set south-bridge's enable bit, m1533, 0x79
- */
-
- pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
- if (m5229_revision == 0xC2) {
- /*
- * 1543C-B0 (m1533, 0x79, bit 2)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
- } else if (m5229_revision >= 0xC3) {
- /*
- * 1553/1535 (m1533, 0x79, bit 1)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
- }
- }
-
-out:
- /*
- * CD_ROM DMA on (m5229, 0x53, bit0)
- * Enable this bit even if we want to use PIO.
- * PIO FIFO off (m5229, 0x53, bit1)
- * The hardware will use 0x54h and 0x55h to control PIO FIFO.
- * (Not on later devices it seems)
- *
- * 0x53 changes meaning on later revs - we must no touch
- * bit 1 on them. Need to check if 0x20 is the right break.
- */
- if (m5229_revision >= 0x20) {
- pci_read_config_byte(dev, 0x53, &tmpbyte);
-
- if (m5229_revision <= 0x20)
- tmpbyte = (tmpbyte & (~0x02)) | 0x01;
- else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
- tmpbyte |= 0x03;
- else
- tmpbyte |= 0x01;
-
- pci_write_config_byte(dev, 0x53, tmpbyte);
- }
- local_irq_restore(flags);
- pci_dev_put(north);
- pci_dev_put(isa_dev);
- return 0;
-}
-
-/*
- * Cable special cases
- */
-
-static const struct dmi_system_id cable_dmi_table[] = {
- {
- .ident = "HP Pavilion N5430",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"),
- },
- },
- {
- .ident = "Toshiba Satellite S1800-814",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"),
- },
- },
- { }
-};
-
-static int ali_cable_override(struct pci_dev *pdev)
-{
- /* Fujitsu P2000 */
- if (pdev->subsystem_vendor == 0x10CF &&
- pdev->subsystem_device == 0x10AF)
- return 1;
-
- /* Mitac 8317 (Winbook-A) and relatives */
- if (pdev->subsystem_vendor == 0x1071 &&
- pdev->subsystem_device == 0x8317)
- return 1;
-
- /* Systems by DMI */
- if (dmi_check_system(cable_dmi_table))
- return 1;
-
- return 0;
-}
-
-/**
- * ali_cable_detect - cable detection
- * @hwif: IDE interface
- *
- * This checks if the controller and the cable are capable
- * of UDMA66 transfers. It doesn't check the drives.
- */
-
-static u8 ali_cable_detect(ide_hwif_t *hwif)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- u8 cbl = ATA_CBL_PATA40, tmpbyte;
-
- if (m5229_revision >= 0xC2) {
- /*
- * m5229 80-pin cable detection (from Host View)
- *
- * 0x4a bit0 is 0 => primary channel has 80-pin
- * 0x4a bit1 is 0 => secondary channel has 80-pin
- *
- * Certain laptops use short but suitable cables
- * and don't implement the detect logic.
- */
- if (ali_cable_override(dev))
- cbl = ATA_CBL_PATA40_SHORT;
- else {
- pci_read_config_byte(dev, 0x4a, &tmpbyte);
- if ((tmpbyte & (1 << hwif->channel)) == 0)
- cbl = ATA_CBL_PATA80;
- }
- }
-
- return cbl;
-}
-
-#ifndef CONFIG_SPARC64
-/**
- * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff
- * @hwif: interface to configure
- *
- * Obtain the IRQ tables for an ALi based IDE solution on the PC
- * class platforms. This part of the code isn't applicable to the
- * Sparc systems.
- */
-
-static void init_hwif_ali15x3(ide_hwif_t *hwif)
-{
- u8 ideic, inmir;
- s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
- 1, 11, 0, 12, 0, 14, 0, 15 };
- int irq = -1;
-
- if (isa_dev) {
- /*
- * read IDE interface control
- */
- pci_read_config_byte(isa_dev, 0x58, &ideic);
-
- /* bit0, bit1 */
- ideic = ideic & 0x03;
-
- /* get IRQ for IDE Controller */
- if ((hwif->channel && ideic == 0x03) ||
- (!hwif->channel && !ideic)) {
- /*
- * get SIRQ1 routing table
- */
- pci_read_config_byte(isa_dev, 0x44, &inmir);
- inmir = inmir & 0x0f;
- irq = irq_routing_table[inmir];
- } else if (hwif->channel && !(ideic & 0x01)) {
- /*
- * get SIRQ2 routing table
- */
- pci_read_config_byte(isa_dev, 0x75, &inmir);
- inmir = inmir & 0x0f;
- irq = irq_routing_table[inmir];
- }
- if(irq >= 0)
- hwif->irq = irq;
- }
-}
-#else
-#define init_hwif_ali15x3 NULL
-#endif /* CONFIG_SPARC64 */
-
-/**
- * init_dma_ali15x3 - set up DMA on ALi15x3
- * @hwif: IDE interface
- * @d: IDE port info
- *
- * Set up the DMA functionality on the ALi 15x3.
- */
-
-static int init_dma_ali15x3(ide_hwif_t *hwif, const struct ide_port_info *d)
-{
- struct pci_dev *dev = to_pci_dev(hwif->dev);
- unsigned long base = ide_pci_dma_base(hwif, d);
-
- if (base == 0)
- return -1;
-
- hwif->dma_base = base;
-
- if (ide_pci_check_simplex(hwif, d) < 0)
- return -1;
-
- if (ide_pci_set_master(dev, d->name) < 0)
- return -1;
-
- if (!hwif->channel)
- outb(inb(base + 2) & 0x60, base + 2);
-
- printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n",
- hwif->name, base, base + 7);
-
- if (ide_allocate_dma_engine(hwif))
- return -1;
-
- return 0;
-}
-
-static const struct ide_port_ops ali_port_ops = {
- .set_pio_mode = ali_set_pio_mode,
- .set_dma_mode = ali_set_dma_mode,
- .udma_filter = ali_udma_filter,
- .cable_detect = ali_cable_detect,
-};
-
-static const struct ide_dma_ops ali_dma_ops = {
- .dma_host_set = ide_dma_host_set,
- .dma_setup = ide_dma_setup,
- .dma_start = ide_dma_start,
- .dma_end = ide_dma_end,
- .dma_test_irq = ide_dma_test_irq,
- .dma_lost_irq = ide_dma_lost_irq,
- .dma_check = ali_dma_check,
- .dma_timer_expiry = ide_dma_sff_timer_expiry,
- .dma_sff_read_status = ide_dma_sff_read_status,
-};
-
-static const struct ide_port_info ali15x3_chipset = {
- .name = DRV_NAME,
- .init_chipset = init_chipset_ali15x3,
- .init_hwif = init_hwif_ali15x3,
- .init_dma = init_dma_ali15x3,
- .port_ops = &ali_port_ops,
- .dma_ops = &sff_dma_ops,
- .pio_mask = ATA_PIO5,
- .swdma_mask = ATA_SWDMA2,
- .mwdma_mask = ATA_MWDMA2,
-};
-
-/**
- * alim15x3_init_one - set up an ALi15x3 IDE controller
- * @dev: PCI device to set up
- *
- * Perform the actual set up for an ALi15x3 that has been found by the
- * hot plug layer.
- */
-
-static int alim15x3_init_one(struct pci_dev *dev,
- const struct pci_device_id *id)
-{
- struct ide_port_info d = ali15x3_chipset;
- u8 rev = dev->revision, idx = id->driver_data;
-
- /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
- if (rev <= 0xC4)
- d.host_flags |= IDE_HFLAG_NO_LBA48_DMA;
-
- if (rev >= 0x20) {
- if (rev == 0x20)
- d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
-
- if (rev < 0xC2)
- d.udma_mask = ATA_UDMA2;
- else if (rev == 0xC2 || rev == 0xC3)
- d.udma_mask = ATA_UDMA4;
- else if (rev == 0xC4)
- d.udma_mask = ATA_UDMA5;
- else
- d.udma_mask = ATA_UDMA6;
-
- d.dma_ops = &ali_dma_ops;
- } else {
- d.host_flags |= IDE_HFLAG_NO_DMA;
-
- d.mwdma_mask = d.swdma_mask = 0;
- }
-
- if (idx == 0)
- d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX;
-
- return ide_pci_init_one(dev, &d, NULL);
-}
-
-
-static const struct pci_device_id alim15x3_pci_tbl[] = {
- { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 },
- { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 1 },
- { 0, },
-};
-MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl);
-
-static struct pci_driver alim15x3_pci_driver = {
- .name = "ALI15x3_IDE",
- .id_table = alim15x3_pci_tbl,
- .probe = alim15x3_init_one,
- .remove = ide_pci_remove,
- .suspend = ide_pci_suspend,
- .resume = ide_pci_resume,
-};
-
-static int __init ali15x3_ide_init(void)
-{
- return ide_pci_register_driver(&alim15x3_pci_driver);
-}
-
-static void __exit ali15x3_ide_exit(void)
-{
- pci_unregister_driver(&alim15x3_pci_driver);
-}
-
-module_init(ali15x3_ide_init);
-module_exit(ali15x3_ide_exit);
-
-MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox, Bartlomiej Zolnierkiewicz");
-MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-05 10:21:38 +0000