diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/ata/Makefile | 1 | ||||
| -rw-r--r-- | drivers/ata/pata_it8172.c | 288 |
3 files changed, 0 insertions, 298 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index cbf0deb..5a8bdac 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -288,15 +288,6 @@ config PATA_ISAPNP If unsure, say N. -config PATA_IT8172 - tristate "IT8172 PATA support (Very Experimental)" - depends on PCI && EXPERIMENTAL - help - This option enables support for the ITE 8172 PATA controller - via the new ATA layer. - - If unsure, say N. - config PATA_IT821X tristate "IT821x PATA support (Experimental)" depends on PCI && EXPERIMENTAL diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index e42d14d..72243a6 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -32,7 +32,6 @@ obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o obj-$(CONFIG_PATA_HPT3X3) += pata_hpt3x3.o obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o -obj-$(CONFIG_PATA_IT8172) += pata_it8172.o obj-$(CONFIG_PATA_IT821X) += pata_it821x.o obj-$(CONFIG_PATA_JMICRON) += pata_jmicron.o obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o diff --git a/drivers/ata/pata_it8172.c b/drivers/ata/pata_it8172.c deleted file mode 100644 index 53d35bb..0000000 --- a/drivers/ata/pata_it8172.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * pata_it8172.c - IT8172 PATA for new ATA layer - * (C) 2005 Red Hat Inc - * Alan Cox <alan@redhat.com> - * - * Based heavily on - * - * BRIEF MODULE DESCRIPTION - * IT8172 IDE controller support - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * stevel@mvista.com or source@mvista.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * TODO - * Check for errata - * See if we really need to force native mode - * PIO timings (also lacking in original) - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/blkdev.h> -#include <linux/delay.h> -#include <scsi/scsi_host.h> -#include <linux/libata.h> - -#define DRV_NAME "pata_it8172" -#define DRV_VERSION "0.3.1" - -static int it8172_pre_reset(struct ata_port *ap) -{ - static const struct pci_bits it8172_enable_bits[] = { - { 0x00, 0, 0x00, 0x00 }, - { 0x40, 1, 0x00, 0x01 } - }; - - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - - if (ap->port_no && !pci_test_config_bits(pdev, &it8172_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } - ap->cbl = ATA_CBL_PATA40; - return ata_std_prereset(ap); -} - -static void it8172_error_handler(struct ata_port *ap) -{ - ata_bmdma_drive_eh(ap, it8172_pre_reset, ata_std_softreset, NULL, ata_std_postreset); -} - -/** - * it8172_set_pio_timing - set initial PIO mode data - * @ap: ATA interface - * @adev: ATA device - * - * Called by both the pio and dma setup functions to set the controller - * timings for PIO transfers. We must load both the mode number and - * timing values into the controller. - */ - -static void it8172_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio) -{ - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - u16 reg40; - - pci_read_config_word(pdev, 0x40, ®40); - - /* - * FIX! The DIOR/DIOW pulse width and recovery times in port 0x44 - * are being left at the default values of 8 PCI clocks (242 nsec - * for a 33 MHz clock). These can be safely shortened at higher - * PIO modes. The DIOR/DIOW pulse width and recovery times only - * apply to PIO modes, not to the DMA modes. - */ - - /* - * Enable port 0x44. The IT8172G spec is confused; it calls - * this register the "Slave IDE Timing Register", but in fact, - * it controls timing for both master and slave drives. - */ - - reg40 |= 0x4000; - if (adev->devno) { - reg40 &= 0xC006; - if (pio > 1) - /* Enable prefetch and IORDY sample-point */ - reg40 |= 0x0060; - } else { - reg40 &= 0xC060; - if (pio > 1) - /* Enable prefetch and IORDY sample-point */ - reg40 |= 0x0006; - } - /* Write back the enables */ - pci_write_config_word(pdev, 0x40, reg40); -} - -/** - * it8172_set_piomode - set initial PIO mode data - * @ap: ATA interface - * @adev: ATA device - * - * Called to do the PIO mode setup. We use a shared helper for this - * as the DMA setup must also adjust the PIO timing information. - */ - -static void it8172_set_piomode(struct ata_port *ap, struct ata_device *adev) -{ - it8172_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0); -} - -/** - * it8172_set_dmamode - set initial DMA mode data - * @ap: ATA interface - * @adev: ATA device - * - * Called to do the DMA mode setup. We must tune an appropriate PIO - * mode to match. - */ - -static void it8172_set_dmamode(struct ata_port *ap, struct ata_device *adev) -{ - struct pci_dev *pdev = to_pci_dev(ap->host->dev); - int dn = (2 * ap->port_no) + adev->devno; - u8 reg48, reg4a; - int pio; - - static const int pio_map[] = { 1, 3, 4}; - /* - * Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec - * at 33 MHz PCI clock) seems to cause BadCRC errors during DMA - * transfers on some drives, even though both numbers meet the minimum - * ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively. - * So the faster times are just commented out here. The good news is - * that the slower cycle time has very little affect on transfer - * performance. - */ - - pci_read_config_byte(pdev, 0x48, ®48); - pci_read_config_byte(pdev, 0x4A, ®4a); - - reg4a &= ~(3 << (4 * dn)); - - if (adev->dma_mode >= XFER_UDMA_0) { - reg48 |= 1 << dn; -#ifdef UDMA_TIMING_SET - reg4a |= ((adev->dma_mode - XFER_UDMA_0) << (4 * dn)); -#endif - pio = 4; - } else { - pio = pio_map[adev->dma_mode - XFER_MW_DMA_0]; - reg48 &= ~ (1 << dn); - } - pci_write_config_byte(pdev, 0x48, reg48); - pci_write_config_byte(pdev, 0x4A, reg4a); - it8172_set_pio_timing(ap, adev, pio); - -} - -static struct scsi_host_template it8172_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = LIBATA_MAX_PRD, - .max_sectors = ATA_MAX_SECTORS, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = ata_scsi_slave_config, - .bios_param = ata_std_bios_param, -}; - -static struct ata_port_operations it8172_port_ops = { - .port_disable = ata_port_disable, - .set_piomode = it8172_set_piomode, - .set_dmamode = it8172_set_dmamode, - .mode_filter = ata_pci_default_filter, - - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - - .freeze = ata_bmdma_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = it8172_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, - - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - - .qc_prep = ata_qc_prep, - .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, - .data_xfer = ata_pio_data_xfer, - - .irq_handler = ata_interrupt, - .irq_clear = ata_bmdma_irq_clear, - - .port_start = ata_port_start, - .port_stop = ata_port_stop, - .host_stop = ata_host_stop -}; - -static int it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - static struct ata_port_info info = { - .sht = &it8172_sht, - .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, - .pio_mask = 0x1f, - .mwdma_mask = 0x06, /* No MWDMA0 support */ - .udma_mask = 0x7, - .port_ops = &it8172_port_ops - }; - static struct ata_port_info *port_info[2] = { &info, &info }; - - if ((!(PCI_FUNC(dev->devfn) & 1) || - (!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE)))) - return -ENODEV; /* IT8172 is more than an IDE controller */ - - return ata_pci_init_one(dev, port_info, 2); -} - -static struct pci_device_id it8172[] = { - { PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G), }, - { 0, }, -}; - -static struct pci_driver it8172_pci_driver = { - .name = DRV_NAME, - .id_table = it8172, - .probe = it8172_init_one, - .remove = ata_pci_remove_one -}; - -static int __init it8172_init(void) -{ - return pci_register_driver(&it8172_pci_driver); -} - - -static void __exit it8172_exit(void) -{ - pci_unregister_driver(&it8172_pci_driver); -} - - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("low-level driver for ITE IT8172"); -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, it8172); -MODULE_VERSION(DRV_VERSION); - -module_init(it8172_init); -module_exit(it8172_exit); |