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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-20 00:32:30 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-20 00:32:30 +0200
commit8acf28c090f0e5e049f56b27bdd7cf1fb40c6b98 (patch)
treecbf910b986d423d030c5917515b3c68368aed70f
parent528a572daea90aa41db92683e5a8756acef514c4 (diff)
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ide: add IDE_HFLAG_FORCE_LEGACY_IRQS host flag
Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag to tell ide_pci_setup_ports() to always set hwif->irq to legacy IRQ 14/15 and convert generic IDE PCI and via82cxxx host drivers to use it. While at it: * Add IDE_HFLAGS_UMC define (generic IDE PCI host driver). * Remove no longer needed init_hwif_generic() (generic IDE PCI host driver). * Set d->udma_mask instead of hwif->ultra_mask (via82cxxx host driver). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/pci/generic.c27
-rw-r--r--drivers/ide/pci/via82cxxx.c20
-rw-r--r--drivers/ide/setup-pci.c3
-rw-r--r--include/linux/ide.h2
4 files changed, 21 insertions, 31 deletions
diff --git a/drivers/ide/pci/generic.c b/drivers/ide/pci/generic.c
index 5116583..b377006 100644
--- a/drivers/ide/pci/generic.c
+++ b/drivers/ide/pci/generic.c
@@ -54,25 +54,13 @@ __setup("all-generic-ide", ide_generic_all_on);
module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
-static void __devinit init_hwif_generic (ide_hwif_t *hwif)
-{
- switch(hwif->pci_dev->device) {
- case PCI_DEVICE_ID_UMC_UM8673F:
- case PCI_DEVICE_ID_UMC_UM8886A:
- case PCI_DEVICE_ID_UMC_UM8886BF:
- hwif->irq = hwif->channel ? 15 : 14;
- break;
- default:
- break;
- }
-}
+#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
-#define DECLARE_GENERIC_PCI_DEV(name_str, dma_setting) \
+#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
{ \
.name = name_str, \
- .init_hwif = init_hwif_generic, \
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
- dma_setting | \
+ extra_flags | \
IDE_HFLAG_BOOTABLE, \
.swdma_mask = ATA_SWDMA2, \
.mwdma_mask = ATA_MWDMA2, \
@@ -84,7 +72,6 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
{ /* 1 */
.name = "NS87410",
- .init_hwif = init_hwif_generic,
.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_BOOTABLE,
@@ -95,16 +82,15 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
- /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAG_NO_DMA),
- /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAG_NO_DMA),
- /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAG_NO_DMA),
+ /* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
+ /* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
+ /* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
{ /* 10 */
.name = "VIA8237SATA",
- .init_hwif = init_hwif_generic,
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
@@ -118,7 +104,6 @@ static ide_pci_device_t generic_chipsets[] __devinitdata = {
{ /* 14 */
.name = "Revolution",
- .init_hwif = init_hwif_generic,
.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
IDE_HFLAG_OFF_BOARD,
.swdma_mask = ATA_SWDMA2,
diff --git a/drivers/ide/pci/via82cxxx.c b/drivers/ide/pci/via82cxxx.c
index c8022a9..27e5b41 100644
--- a/drivers/ide/pci/via82cxxx.c
+++ b/drivers/ide/pci/via82cxxx.c
@@ -428,12 +428,6 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
hwif->set_pio_mode = &via_set_pio_mode;
hwif->set_dma_mode = &via_set_drive;
-#ifdef CONFIG_PPC_CHRP
- if(machine_is(chrp) && _chrp_type == _CHRP_Pegasos) {
- hwif->irq = hwif->channel ? 15 : 14;
- }
-#endif
-
for (i = 0; i < 2; i++) {
hwif->drives[i].io_32bit = 1;
hwif->drives[i].unmask = (vdev->via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
@@ -442,8 +436,6 @@ static void __devinit init_hwif_via82cxxx(ide_hwif_t *hwif)
if (!hwif->dma_base)
return;
- hwif->ultra_mask = vdev->via_config->udma_mask;
-
if (hwif->cbl != ATA_CBL_PATA40_SHORT)
hwif->cbl = via82cxxx_cable_detect(hwif);
}
@@ -479,8 +471,10 @@ static ide_pci_device_t via82cxxx_chipsets[] __devinitdata = {
static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
+ ide_pci_device_t *d = &via82cxxx_chipsets[id->driver_data];
struct pci_dev *isa = NULL;
struct via_isa_bridge *via_config;
+
/*
* Find the ISA bridge and check we know what it is.
*/
@@ -490,7 +484,15 @@ static int __devinit via_init_one(struct pci_dev *dev, const struct pci_device_i
printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, disabling DMA.\n");
return -ENODEV;
}
- return ide_setup_pci_device(dev, &via82cxxx_chipsets[id->driver_data]);
+
+#ifdef CONFIG_PPC_CHRP
+ if (machine_is(chrp) && _chrp_type == _CHRP_Pegasos)
+ d->host_flags |= IDE_HFLAG_FORCE_LEGACY_IRQS;
+#endif
+
+ d->udma_mask = via_config->udma_mask;
+
+ return ide_setup_pci_device(dev, d);
}
static const struct pci_device_id via_pci_tbl[] = {
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 30c0741..4fa813b 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -563,7 +563,8 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0)
ide_hwif_setup_dma(dev, d, hwif);
- if ((d->host_flags & IDE_HFLAG_LEGACY_IRQS) && hwif->irq == 0)
+ if ((!hwif->irq && (d->host_flags & IDE_HFLAG_LEGACY_IRQS)) ||
+ (d->host_flags & IDE_HFLAG_FORCE_LEGACY_IRQS))
hwif->irq = port ? 15 : 14;
hwif->host_flags = d->host_flags;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b676e51..ff9d293 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1263,6 +1263,8 @@ enum {
IDE_HFLAG_SERIALIZE = (1 << 20),
/* use legacy IRQs */
IDE_HFLAG_LEGACY_IRQS = (1 << 21),
+ /* force use of legacy IRQs */
+ IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
};
#ifdef CONFIG_BLK_DEV_OFFBOARD