diff options
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/ide/Makefile | 1 | ||||
| -rw-r--r-- | drivers/ide/cs5536.c | 308 | ||||
| -rw-r--r-- | drivers/ide/icside.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide-acpi.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide-cd.c | 3 | ||||
| -rw-r--r-- | drivers/ide/ide-io.c | 9 | ||||
| -rw-r--r-- | drivers/ide/ide-probe.c | 43 | ||||
| -rw-r--r-- | drivers/ide/tx4939ide.c | 4 | ||||
| -rw-r--r-- | drivers/ide/via82cxxx.c | 5 |
10 files changed, 371 insertions, 16 deletions
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index b1c6f68d98c..3dad2299d9c 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -465,6 +465,16 @@ config BLK_DEV_CS5535 It is safe to say Y to this question. +config BLK_DEV_CS5536 + tristate "CS5536 chipset support" + depends on X86_32 + select BLK_DEV_IDEDMA_PCI + help + This option enables support for the AMD CS5536 + companion chip used with the Geode LX processor family. + + If unsure, say N. + config BLK_DEV_HPT366 tristate "HPT36X/37X chipset support" select BLK_DEV_IDEDMA_PCI diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index c2b9c93f009..d0e3d7d5b46 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o obj-$(CONFIG_BLK_DEV_CS5535) += cs5535.o +obj-$(CONFIG_BLK_DEV_CS5536) += cs5536.o obj-$(CONFIG_BLK_DEV_SC1200) += sc1200.o obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o obj-$(CONFIG_BLK_DEV_DELKIN) += delkin_cb.o diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c new file mode 100644 index 00000000000..7a62db719a4 --- /dev/null +++ b/drivers/ide/cs5536.c @@ -0,0 +1,308 @@ +/* + * CS5536 PATA support + * (C) 2007 Martin K. Petersen <mkp@mkp.net> + * (C) 2009 Bartlomiej Zolnierkiewicz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Documentation: + * Available from AMD web site. + * + * The IDE timing registers for the CS5536 live in the Geode Machine + * Specific Register file and not PCI config space. Most BIOSes + * virtualize the PCI registers so the chip looks like a standard IDE + * controller. Unfortunately not all implementations get this right. + * In particular some have problems with unaligned accesses to the + * virtualized PCI registers. This driver always does full dword + * writes to work around the issue. Also, in case of a bad BIOS this + * driver can be loaded with the "msr=1" parameter which forces using + * the Machine Specific Registers to configure the device. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/ide.h> +#include <asm/msr.h> + +#define DRV_NAME "cs5536" + +enum { + MSR_IDE_CFG = 0x51300010, + PCI_IDE_CFG = 0x40, + + CFG = 0, + DTC = 2, + CAST = 3, + ETC = 4, + + IDE_CFG_CHANEN = (1 << 1), + IDE_CFG_CABLE = (1 << 17) | (1 << 16), + + IDE_D0_SHIFT = 24, + IDE_D1_SHIFT = 16, + IDE_DRV_MASK = 0xff, + + IDE_CAST_D0_SHIFT = 6, + IDE_CAST_D1_SHIFT = 4, + IDE_CAST_DRV_MASK = 0x3, + + IDE_CAST_CMD_SHIFT = 24, + IDE_CAST_CMD_MASK = 0xff, + + IDE_ETC_UDMA_MASK = 0xc0, +}; + +static int use_msr; + +static int cs5536_read(struct pci_dev *pdev, int reg, u32 *val) +{ + if (unlikely(use_msr)) { + u32 dummy; + + rdmsr(MSR_IDE_CFG + reg, *val, dummy); + return 0; + } + + return pci_read_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); +} + +static int cs5536_write(struct pci_dev *pdev, int reg, int val) +{ + if (unlikely(use_msr)) { + wrmsr(MSR_IDE_CFG + reg, val, 0); + return 0; + } + + return pci_write_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); +} + +static void cs5536_program_dtc(ide_drive_t *drive, u8 tim) +{ + struct pci_dev *pdev = to_pci_dev(drive->hwif->dev); + int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT; + u32 dtc; + + cs5536_read(pdev, DTC, &dtc); + dtc &= ~(IDE_DRV_MASK << dshift); + dtc |= tim << dshift; + cs5536_write(pdev, DTC, dtc); +} + +/** + * cs5536_cable_detect - detect cable type + * @hwif: Port to detect on + * + * Perform cable detection for ATA66 capable cable. + * + * Returns a cable type. + */ + +static u8 cs5536_cable_detect(ide_hwif_t *hwif) +{ + struct pci_dev *pdev = to_pci_dev(hwif->dev); + u32 cfg; + + cs5536_read(pdev, CFG, &cfg); + + if (cfg & IDE_CFG_CABLE) + return ATA_CBL_PATA80; + else + return ATA_CBL_PATA40; +} + +/** + * cs5536_set_pio_mode - PIO timing setup + * @drive: ATA device + * @pio: PIO mode number + */ + +static void cs5536_set_pio_mode(ide_drive_t *drive, const u8 pio) +{ + static const u8 drv_timings[5] = { + 0x98, 0x55, 0x32, 0x21, 0x20, + }; + + static const u8 addr_timings[5] = { + 0x2, 0x1, 0x0, 0x0, 0x0, + }; + + static const u8 cmd_timings[5] = { + 0x99, 0x92, 0x90, 0x22, 0x20, + }; + + struct pci_dev *pdev = to_pci_dev(drive->hwif->dev); + ide_drive_t *pair = ide_get_pair_dev(drive); + int cshift = (drive->dn & 1) ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT; + u32 cast; + u8 cmd_pio = pio; + + if (pair) + cmd_pio = min(pio, ide_get_best_pio_mode(pair, 255, 4)); + + drive->drive_data &= (IDE_DRV_MASK << 8); + drive->drive_data |= drv_timings[pio]; + + cs5536_program_dtc(drive, drv_timings[pio]); + + cs5536_read(pdev, CAST, &cast); + + cast &= ~(IDE_CAST_DRV_MASK << cshift); + cast |= addr_timings[pio] << cshift; + + cast &= ~(IDE_CAST_CMD_MASK << IDE_CAST_CMD_SHIFT); + cast |= cmd_timings[cmd_pio] << IDE_CAST_CMD_SHIFT; + + cs5536_write(pdev, CAST, cast); +} + +/** + * cs5536_set_dma_mode - DMA timing setup + * @drive: ATA device + * @mode: DMA mode + */ + +static void cs5536_set_dma_mode(ide_drive_t *drive, const u8 mode) +{ + static const u8 udma_timings[6] = { + 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, + }; + + static const u8 mwdma_timings[3] = { + 0x67, 0x21, 0x20, + }; + + struct pci_dev *pdev = to_pci_dev(drive->hwif->dev); + int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT; + u32 etc; + + cs5536_read(pdev, ETC, &etc); + + if (mode >= XFER_UDMA_0) { + etc &= ~(IDE_DRV_MASK << dshift); + etc |= udma_timings[mode - XFER_UDMA_0] << dshift; + } else { /* MWDMA */ + etc &= ~(IDE_ETC_UDMA_MASK << dshift); + drive->drive_data &= IDE_DRV_MASK; + drive->drive_data |= mwdma_timings[mode - XFER_MW_DMA_0] << 8; + } + + cs5536_write(pdev, ETC, etc); +} + +static void cs5536_dma_start(ide_drive_t *drive) +{ + if (drive->current_speed < XFER_UDMA_0 && + (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK)) + cs5536_program_dtc(drive, drive->drive_data >> 8); + + ide_dma_start(drive); +} + +static int cs5536_dma_end(ide_drive_t *drive) +{ + int ret = ide_dma_end(drive); + + if (drive->current_speed < XFER_UDMA_0 && + (drive->drive_data >> 8) != (drive->drive_data & IDE_DRV_MASK)) + cs5536_program_dtc(drive, drive->drive_data & IDE_DRV_MASK); + + return ret; +} + +static const struct ide_port_ops cs5536_port_ops = { + .set_pio_mode = cs5536_set_pio_mode, + .set_dma_mode = cs5536_set_dma_mode, + .cable_detect = cs5536_cable_detect, +}; + +static const struct ide_dma_ops cs5536_dma_ops = { + .dma_host_set = ide_dma_host_set, + .dma_setup = ide_dma_setup, + .dma_exec_cmd = ide_dma_exec_cmd, + .dma_start = cs5536_dma_start, + .dma_end = cs5536_dma_end, + .dma_test_irq = ide_dma_test_irq, + .dma_lost_irq = ide_dma_lost_irq, + .dma_timeout = ide_dma_timeout, +}; + +static const struct ide_port_info cs5536_info = { + .name = DRV_NAME, + .port_ops = &cs5536_port_ops, + .dma_ops = &cs5536_dma_ops, + .host_flags = IDE_HFLAG_SINGLE, + .pio_mask = ATA_PIO4, + .mwdma_mask = ATA_MWDMA2, + .udma_mask = ATA_UDMA5, +}; + +/** + * cs5536_init_one + * @dev: PCI device + * @id: Entry in match table + */ + +static int cs5536_init_one(struct pci_dev *dev, const struct pci_device_id *id) +{ + u32 cfg; + + if (use_msr) + printk(KERN_INFO DRV_NAME ": Using MSR regs instead of PCI\n"); + + cs5536_read(dev, CFG, &cfg); + + if ((cfg & IDE_CFG_CHANEN) == 0) { + printk(KERN_ERR DRV_NAME ": disabled by BIOS\n"); + return -ENODEV; + } + + return ide_pci_init_one(dev, &cs5536_info, NULL); +} + +static const struct pci_device_id cs5536_pci_tbl[] = { + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), }, + { }, +}; + +static struct pci_driver cs5536_pci_driver = { + .name = DRV_NAME, + .id_table = cs5536_pci_tbl, + .probe = cs5536_init_one, + .remove = ide_pci_remove, + .suspend = ide_pci_suspend, + .resume = ide_pci_resume, +}; + +static int __init cs5536_init(void) +{ + return pci_register_driver(&cs5536_pci_driver); +} + +static void __exit cs5536_exit(void) +{ + pci_unregister_driver(&cs5536_pci_driver); +} + +MODULE_AUTHOR("Martin K. Petersen, Bartlomiej Zolnierkiewicz"); +MODULE_DESCRIPTION("low-level driver for the CS5536 IDE controller"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, cs5536_pci_tbl); + +module_param_named(msr, use_msr, int, 0644); +MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); + +module_init(cs5536_init); +module_exit(cs5536_exit); diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c index 97a35c667ae..415d7e24f2b 100644 --- a/drivers/ide/icside.c +++ b/drivers/ide/icside.c @@ -534,7 +534,7 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec) d.dma_ops = NULL; } - ret = ide_host_register(host, NULL, hws); + ret = ide_host_register(host, &d, hws); if (ret) goto err_free; diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index d8f295bdad7..ec7d07fa570 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -282,7 +282,7 @@ static int do_drive_get_GTF(ide_drive_t *drive, port = hwif->channel ? drive->dn - 2: drive->dn; DEBPRINT("ENTER: %s at %s, port#: %d, hard_port#: %d\n", - hwif->name, dev->bus_id, port, hwif->channel); + hwif->name, dev_name(dev), port, hwif->channel); if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) { DEBPRINT("%s drive %d:%d not present\n", diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index cae69372cf4..0bfeb0c79d6 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -787,6 +787,9 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) if (blk_fs_request(rq)) { ide_end_request(drive, 1, rq->nr_sectors); return ide_stopped; + } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) { + ide_end_request(drive, 1, 1); + return ide_stopped; } goto end_request; } diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index cc163319dfb..9ee51adf567 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -418,11 +418,14 @@ void ide_map_sg(ide_drive_t *drive, struct request *rq) ide_hwif_t *hwif = drive->hwif; struct scatterlist *sg = hwif->sg_table; - if (rq->cmd_type != REQ_TYPE_ATA_TASKFILE) { - hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg); - } else { + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE); hwif->sg_nents = 1; + } else if (!rq->bio) { + sg_init_one(sg, rq->data, rq->data_len); + hwif->sg_nents = 1; + } else { + hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg); } } diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 0db1ed9f5fc..ce0818a993f 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1467,6 +1467,30 @@ struct ide_host *ide_host_alloc(const struct ide_port_info *d, hw_regs_t **hws) } EXPORT_SYMBOL_GPL(ide_host_alloc); +static void ide_port_free(ide_hwif_t *hwif) +{ + ide_port_free_devices(hwif); + ide_free_port_slot(hwif->index); + kfree(hwif); +} + +static void ide_disable_port(ide_hwif_t *hwif) +{ + struct ide_host *host = hwif->host; + int i; + + printk(KERN_INFO "%s: disabling port\n", hwif->name); + + for (i = 0; i < MAX_HOST_PORTS; i++) { + if (host->ports[i] == hwif) { + host->ports[i] = NULL; + host->n_ports--; + } + } + + ide_port_free(hwif); +} + int ide_host_register(struct ide_host *host, const struct ide_port_info *d, hw_regs_t **hws) { @@ -1507,8 +1531,12 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, hwif->present = 1; if (hwif->chipset != ide_4drives || !hwif->mate || - !hwif->mate->present) - ide_register_port(hwif); + !hwif->mate->present) { + if (ide_register_port(hwif)) { + ide_disable_port(hwif); + continue; + } + } if (hwif->present) ide_port_tune_devices(hwif); @@ -1521,7 +1549,8 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d, if (hwif_init(hwif) == 0) { printk(KERN_INFO "%s: failed to initialize IDE " "interface\n", hwif->name); - hwif->present = 0; + device_unregister(&hwif->gendev); + ide_disable_port(hwif); continue; } @@ -1660,12 +1689,8 @@ void ide_host_free(struct ide_host *host) int i; ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - ide_port_free_devices(hwif); - ide_free_port_slot(hwif->index); - kfree(hwif); + if (hwif) + ide_port_free(hwif); } kfree(host); diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c index 882f6f07c47..40b0812a045 100644 --- a/drivers/ide/tx4939ide.c +++ b/drivers/ide/tx4939ide.c @@ -261,9 +261,9 @@ static int tx4939ide_build_dmatable(ide_drive_t *drive, struct request *rq) bcount = cur_len; /* * This workaround for zero count seems required. - * (standard ide_build_dmatable do it too) + * (standard ide_build_dmatable does it too) */ - if ((bcount & 0xffff) == 0x0000) + if (bcount == 0x10000) bcount = 0x8000; *table++ = bcount & 0xffff; *table++ = cur_addr; diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c index 703c3eeb20a..6092fe3f409 100644 --- a/drivers/ide/via82cxxx.c +++ b/drivers/ide/via82cxxx.c @@ -448,6 +448,11 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS; #endif +#ifdef CONFIG_AMIGAONE + if (machine_is(amigaone)) + d.host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS; +#endif + d.udma_mask = via_config->udma_mask; vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); |