The patch titled
libata: Add a host flag to indicate lack of IORDY capability
has been removed from the -mm tree. Its filename was
libata-add-a-host-flag-to-indicate-lack-of-iordy.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: libata: Add a host flag to indicate lack of IORDY capability
From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
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 <alan@xxxxxxxxxx>
Cc: Jeff Garzik <jeff@xxxxxxxxxx>
Cc: Tejun Heo <htejun@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/ata/pata_legacy.c | 11 +++++++++--
drivers/ata/pata_qdi.c | 4 +++-
include/linux/libata.h | 1 +
3 files changed, 13 insertions(+), 3 deletions(-)
diff -puN drivers/ata/pata_legacy.c~libata-add-a-host-flag-to-indicate-lack-of-iordy drivers/ata/pata_legacy.c
--- a/drivers/ata/pata_legacy.c~libata-add-a-host-flag-to-indicate-lack-of-iordy
+++ a/drivers/ata/pata_legacy.c
@@ -89,9 +89,10 @@ static int probe_all; /* Set to check
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_po
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 po
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 po
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 po
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 po
/* 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 po
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);
diff -puN drivers/ata/pata_qdi.c~libata-add-a-host-flag-to-indicate-lack-of-iordy drivers/ata/pata_qdi.c
--- a/drivers/ata/pata_qdi.c~libata-add-a-host-flag-to-indicate-lack-of-iordy
+++ a/drivers/ata/pata_qdi.c
@@ -264,16 +264,18 @@ static __init int qdi_init_one(unsigned
if (type == 6580) {
ae.port_ops = &qdi6580_port_ops;
ae.pio_mask = 0x1F;
+ ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
} else {
ae.port_ops = &qdi6500_port_ops;
ae.pio_mask = 0x07; /* Actually PIO3 !IORDY is possible */
+ ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST |
+ ATA_FLAG_NO_IORDY;
}
ae.sht = &qdi_sht;
ae.n_ports = 1;
ae.irq = irq;
ae.irq_flags = 0;
- ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
ae.port[0].cmd_addr = io_addr;
ae.port[0].altstatus_addr = ctl_addr;
ae.port[0].ctl_addr = ctl_addr;
diff -puN include/linux/libata.h~libata-add-a-host-flag-to-indicate-lack-of-iordy include/linux/libata.h
--- a/include/linux/libata.h~libata-add-a-host-flag-to-indicate-lack-of-iordy
+++ a/include/linux/libata.h
@@ -173,6 +173,7 @@ enum {
ATA_FLAG_DEBUGMSG = (1 << 13),
ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */
ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */
+ ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */
/* The following flag belongs to ap->pflags but is kept in
* ap->flags because it's referenced in many LLDs and will be
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
origin.patch
sis-warning-fixes.patch
libata-fix-hopefully-all-the-remaining-problems-with.patch
adjust-legacy-ide-resource-setting-v2.patch
git-mtd.patch
resend-iphase-64bit-cleanup.patch
drivers-scsi-ncr5380c-replacing-yield-with-a.patch
drivers-scsi-mca_53c9xc-save_flags-cli-removal.patch
x86_64-do-not-enable-the-nmi-watchdog-by-default.patch
add-an-option-for-the-via-c7-which-sets-appropriate-l1.patch
driver_bfin_serial_core.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
edac-k8-driver-coding-tidy.patch
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