From f834e49f1a09414e9618ff0c9cd83c2114032bb6 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 7 Feb 2007 13:46:00 -0800 Subject: libata: Add a host flag to indicate lack of IORDY capability This is the first preparation to doing the !IORDY cases properly. Further diffs will then add the needed logic to do it right. Signed-off-by: Alan Cox Cc: Jeff Garzik Cc: Tejun Heo Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/ata/pata_legacy.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/ata/pata_legacy.c') diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index 4223e10de6a0..98c1fee4b305 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c @@ -89,9 +89,10 @@ static int probe_all; /* Set to check all ISA port ranges */ static int ht6560a; /* HT 6560A on primary 1, secondary 2, both 3 */ static int ht6560b; /* HT 6560A on primary 1, secondary 2, both 3 */ static int opti82c611a; /* Opti82c611A on primary 1, secondary 2, both 3 */ -static int opti82c46x; /* Opti 82c465MV present (pri/sec autodetect) */ +static int opti82c46x; /* Opti 82c465MV present (pri/sec autodetect) */ 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 */ /** * legacy_set_mode - mode setting @@ -113,6 +114,7 @@ static int legacy_set_mode(struct ata_port *ap, struct ata_device **unused) for (i = 0; i < ATA_MAX_DEVICES; i++) { struct ata_device *dev = &ap->device[i]; if (ata_dev_enabled(dev)) { + ata_dev_printk(dev, KERN_INFO, "configured for PIO\n"); dev->pio_mode = XFER_PIO_0; dev->xfer_mode = XFER_PIO_0; dev->xfer_shift = ATA_SHIFT_PIO; @@ -695,6 +697,7 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl void __iomem *io_addr, *ctrl_addr; int pio_modes = pio_mask; u32 mask = (1 << port); + u32 iordy = (iordy_mask & mask) ? 0: ATA_FLAG_NO_IORDY; int ret; pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0); @@ -715,6 +718,7 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl if (ht6560a & mask) { ops = &ht6560a_port_ops; pio_modes = 0x07; + iordy = ATA_FLAG_NO_IORDY; } if (ht6560b & mask) { ops = &ht6560b_port_ops; @@ -750,6 +754,7 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl printk(KERN_INFO "PDC20230-C/20630 VLB ATA controller detected.\n"); pio_modes = 0x07; ops = &pdc20230_port_ops; + iordy = ATA_FLAG_NO_IORDY; udelay(100); inb(0x1F5); } else { @@ -767,6 +772,7 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl /* Chip does mode setting by command snooping */ if (ops == &legacy_port_ops && (autospeed & mask)) ops = &simple_port_ops; + memset(&ae, 0, sizeof(struct ata_probe_ent)); INIT_LIST_HEAD(&ae.node); ae.dev = &pdev->dev; @@ -776,7 +782,7 @@ static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl ae.pio_mask = pio_modes; ae.irq = irq; ae.irq_flags = 0; - ae.port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST; + ae.port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST|iordy; ae.port[0].cmd_addr = io_addr; ae.port[0].altstatus_addr = ctrl_addr; ae.port[0].ctl_addr = ctrl_addr; @@ -945,6 +951,7 @@ module_param(ht6560b, int, 0); module_param(opti82c611a, int, 0); module_param(opti82c46x, int, 0); module_param(pio_mask, int, 0); +module_param(iordy_mask, int, 0); module_init(legacy_init); module_exit(legacy_exit); -- cgit v1.2.1