diff options
| -rw-r--r-- | drivers/ata/pata_legacy.c | 178 |
1 files changed, 144 insertions, 34 deletions
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index c4a939b506c9..333dc15f8ccf 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -28,7 +28,6 @@ * * Unsupported but docs exist: * Appian/Adaptec AIC25VL01/Cirrus Logic PD7220 - * Winbond W83759A * * This driver handles legacy (that is "ISA/VLB side") IDE ports found * on PC class systems. There are three hybrid devices that are exceptions @@ -36,7 +35,7 @@ * the MPIIX where the tuning is PCI side but the IDE is "ISA side". * * Specific support is included for the ht6560a/ht6560b/opti82c611a/ - * opti82c465mv/promise 20230c/20630 + * opti82c465mv/promise 20230c/20630/winbond83759A * * Use the autospeed and pio_mask options with: * Appian ADI/2 aka CLPD7220 or AIC25VL01. @@ -47,9 +46,6 @@ * For now use autospeed and pio_mask as above with the W83759A. This may * change. * - * TODO - * Merge existing pata_qdi driver - * */ #include <linux/kernel.h> @@ -64,7 +60,7 @@ #include <linux/platform_device.h> #define DRV_NAME "pata_legacy" -#define DRV_VERSION "0.5.5" +#define DRV_VERSION "0.6.5" #define NR_HOST 6 @@ -92,6 +88,7 @@ enum controller { QDI6500 = 7, QDI6580 = 8, QDI6580DP = 9, /* Dual channel mode is different */ + W83759A = 10, UNKNOWN = -1 }; @@ -111,7 +108,8 @@ struct legacy_controller { struct ata_port_operations *ops; unsigned int pio_mask; unsigned int flags; - int (*setup)(struct legacy_probe *probe, struct legacy_data *data); + int (*setup)(struct platform_device *, struct legacy_probe *probe, + struct legacy_data *data); }; static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; @@ -128,6 +126,8 @@ static int ht6560b; /* HT 6560A on primary 1, second 2, both 3 */ static int opti82c611a; /* Opti82c611A on primary 1, sec 2, both 3 */ static int opti82c46x; /* Opti 82c465MV present(pri/sec autodetect) */ static int qdi; /* Set to probe QDI controllers */ +static int winbond; /* Set to probe Winbond controllers, + give I/O port if non stdanard */ static int autospeed; /* Chip present which snoops speed changes */ static int pio_mask = 0x1F; /* PIO range for autospeed devices */ static int iordy_mask = 0xFFFFFFFF; /* Use iordy if available */ @@ -891,9 +891,7 @@ static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc) return ata_qc_issue_prot(qc); } -/* For the 6580 can we flip the FIFO on/off at this point ? */ - -static unsigned int qdi_data_xfer(struct ata_device *adev, unsigned char *buf, +static unsigned int vlb32_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int rw) { struct ata_port *ap = adev->link->ap; @@ -922,6 +920,15 @@ static unsigned int qdi_data_xfer(struct ata_device *adev, unsigned char *buf, return ata_data_xfer(adev, buf, buflen, rw); } +static int qdi_port(struct platform_device *dev, + struct legacy_probe *lp, struct legacy_data *ld) +{ + if (devm_request_region(&dev->dev, lp->private, 4, "qdi") == NULL) + return -EBUSY; + ld->timing = lp->private; + return 0; +} + static struct ata_port_operations qdi6500_port_ops = { .set_piomode = qdi6500_set_piomode, @@ -940,7 +947,7 @@ static struct ata_port_operations qdi6500_port_ops = { .qc_prep = ata_qc_prep, .qc_issue = qdi_qc_issue_prot, - .data_xfer = qdi_data_xfer, + .data_xfer = vlb32_data_xfer, .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -967,7 +974,7 @@ static struct ata_port_operations qdi6580_port_ops = { .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .data_xfer = qdi_data_xfer, + .data_xfer = vlb32_data_xfer, .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -994,7 +1001,7 @@ static struct ata_port_operations qdi6580dp_port_ops = { .qc_prep = ata_qc_prep, .qc_issue = qdi_qc_issue_prot, - .data_xfer = qdi_data_xfer, + .data_xfer = vlb32_data_xfer, .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -1003,6 +1010,97 @@ static struct ata_port_operations qdi6580dp_port_ops = { .port_start = ata_sff_port_start, }; +static DEFINE_SPINLOCK(winbond_lock); + +static void winbond_writecfg(unsigned long port, u8 reg, u8 val) +{ + unsigned long flags; + spin_lock_irqsave(&winbond_lock, flags); + outb(reg, port + 0x01); + outb(val, port + 0x02); + spin_unlock_irqrestore(&winbond_lock, flags); +} + +static u8 winbond_readcfg(unsigned long port, u8 reg) +{ + u8 val; + + unsigned long flags; + spin_lock_irqsave(&winbond_lock, flags); + outb(reg, port + 0x01); + val = inb(port + 0x02); + spin_unlock_irqrestore(&winbond_lock, flags); + + return val; +} + +static void winbond_set_piomode(struct ata_port *ap, struct ata_device *adev) +{ + struct ata_timing t; + struct legacy_data *winbond = ap->host->private_data; + int active, recovery; + u8 reg; + int timing = 0x88 + (ap->port_no * 4) + (adev->devno * 2); + + reg = winbond_readcfg(winbond->timing, 0x81); + + /* Get the timing data in cycles */ + if (reg & 0x40) /* Fast VLB bus, assume 50MHz */ + ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000); + else + ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000); + + active = (FIT(t.active, 3, 17) - 1) & 0x0F; + recovery = (FIT(t.recover, 1, 15) + 1) & 0x0F; + timing = (active << 4) | recovery; + winbond_writecfg(winbond->timing, timing, reg); + + /* Load the setup timing */ + + reg = 0x35; + if (adev->class != ATA_DEV_ATA) + reg |= 0x08; /* FIFO off */ + if (!ata_pio_need_iordy(adev)) + reg |= 0x02; /* IORDY off */ + reg |= (FIT(t.setup, 0, 3) << 6); + winbond_writecfg(winbond->timing, timing + 1, reg); +} + +static int winbond_port(struct platform_device *dev, + struct legacy_probe *lp, struct legacy_data *ld) +{ + if (devm_request_region(&dev->dev, lp->private, 4, "winbond") == NULL) + return -EBUSY; + ld->timing = lp->private; + return 0; +} + +static struct ata_port_operations winbond_port_ops = { + .set_piomode = winbond_set_piomode, + + .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 = ata_bmdma_error_handler, + .post_internal_cmd = ata_bmdma_post_internal_cmd, + .cable_detect = ata_cable_40wire, + + .qc_prep = ata_qc_prep, + .qc_issue = ata_qc_issue_prot, + + .data_xfer = vlb32_data_xfer, + + .irq_clear = ata_bmdma_irq_clear, + .irq_on = ata_irq_on, + + .port_start = ata_sff_port_start, +}; + static struct legacy_controller controllers[] = { {"BIOS", &legacy_port_ops, 0x1F, ATA_FLAG_NO_IORDY, NULL }, @@ -1019,11 +1117,13 @@ static struct legacy_controller controllers[] = { {"OPTI82C46X", &opti82c46x_port_ops, 0x0F, 0 , NULL }, {"QDI6500", &qdi6500_port_ops, 0x07, - ATA_FLAG_NO_IORDY, NULL }, + ATA_FLAG_NO_IORDY, qdi_port }, {"QDI6580", &qdi6580_port_ops, 0x1F, - 0 , NULL }, + 0 , qdi_port }, {"QDI6580DP", &qdi6580dp_port_ops, 0x1F, - 0 , NULL } + 0 , qdi_port }, + {"W83759A", &winbond_port_ops, 0x1F, + 0 , winbond_port } }; /** @@ -1034,10 +1134,26 @@ static struct legacy_controller controllers[] = { * check if the controller appears to be driveless at this point. */ -static int probe_chip_type(struct legacy_probe *probe) +static __init int probe_chip_type(struct legacy_probe *probe) { int mask = 1 << probe->slot; + if (winbond && (probe->port == 0x1F0 || probe->port == 0x170)) { + u8 reg = winbond_readcfg(winbond, 0x81); + reg |= 0x80; /* jumpered mode off */ + winbond_writecfg(winbond, 0x81, reg); + reg = winbond_readcfg(winbond, 0x83); + reg |= 0xF0; /* local control */ + winbond_writecfg(winbond, 0x83, reg); + reg = winbond_readcfg(winbond, 0x85); + reg |= 0xF0; /* programmable timing */ + winbond_writecfg(winbond, 0x85, reg); + + reg = winbond_readcfg(winbond, 0x81); + + if (reg & mask) + return W83759A; + } if (probe->port == 0x1F0) { unsigned long flags; local_irq_save(flags); @@ -1127,7 +1243,7 @@ static __init int legacy_init_one(struct legacy_probe *probe) if (!io_addr || !ctrl_addr) goto fail; if (controller->setup) - if (controller->setup(probe, ld) < 0) + if (controller->setup(pdev, probe, ld) < 0) goto fail; host = ata_host_alloc(&pdev->dev, 1); if (!host) @@ -1141,7 +1257,7 @@ static __init int legacy_init_one(struct legacy_probe *probe) ap->ioaddr.altstatus_addr = ctrl_addr; ap->ioaddr.ctl_addr = ctrl_addr; ata_std_ports(&ap->ioaddr); - ap->private_data = ld; + ap->host->private_data = ld; ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", io, io + 0x0206); @@ -1164,9 +1280,6 @@ static __init int legacy_init_one(struct legacy_probe *probe) fail: if (host) ata_host_detach(host); - /* FIXME: use devm for this */ - if (ld->timing) - release_region(ld->timing, 2); platform_device_unregister(pdev); return ret; } @@ -1184,7 +1297,7 @@ fail: * is the right driver anyway. */ -static void legacy_check_special_cases(struct pci_dev *p, int *primary, +static void __init legacy_check_special_cases(struct pci_dev *p, int *primary, int *secondary) { /* Cyrix CS5510 pre SFF MWDMA ATA on the bridge */ @@ -1249,11 +1362,9 @@ static __init void qdi65_identify_port(u8 r, u8 res, unsigned long port) /* Check card type */ if ((r & 0xF0) == 0xC0) { /* QD6500: single channel */ - if (r & 8) { + if (r & 8) /* Disabled ? */ - release_region(port, 2); return; - } legacy_probe_add(ide_port[r & 0x01], 14 + (r & 0x01), QDI6500, port); } @@ -1273,6 +1384,7 @@ static __init void qdi65_identify_port(u8 r, u8 res, unsigned long port) /* port + 0x02, r & 0x04 */ legacy_probe_add(0x170, 15, QDI6580DP, port + 2); } + release_region(port + 2, 2); } } @@ -1315,11 +1427,9 @@ static __init void probe_qdi_vlb(void) r = inb(port + 1); udelay(1); /* Check port agrees with port set */ - if ((r & 2) >> 1 != i) { - release_region(port, 2); - continue; - } - qdi65_identify_port(r, res, port); + if ((r & 2) >> 1 == i) + qdi65_identify_port(r, res, port); + release_region(port, 2); } } } @@ -1365,6 +1475,9 @@ static __init int legacy_init(void) pci_present = 1; } + if (winbond == 1) + winbond = 0x130; /* Default port, alt is 1B0 */ + if (primary == 0 || all) legacy_probe_add(0x1F0, 14, UNKNOWN, 0); if (secondary == 0 || all) @@ -1383,7 +1496,6 @@ static __init int legacy_init(void) if (qdi) probe_qdi_vlb(); - for (i = 0; i < NR_HOST; i++, pl++) { if (pl->port == 0) continue; @@ -1406,8 +1518,6 @@ static __exit void legacy_exit(void) struct legacy_data *ld = &legacy_data[i]; ata_host_detach(legacy_host[i]); platform_device_unregister(ld->platform_dev); - if (ld->timing) - release_region(ld->timing, 2); } } |