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path: root/drivers/ide/ppc/pmac.c
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Diffstat (limited to 'drivers/ide/ppc/pmac.c')
-rw-r--r--drivers/ide/ppc/pmac.c77
1 files changed, 17 insertions, 60 deletions
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index fa2be26272d5..2e19d6298536 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -430,10 +430,7 @@ pmac_ide_selectproc(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
- if (drive->select.b.unit & 0x01)
+ if (drive->dn & 1)
writel(pmif->timings[1], PMAC_IDE_REG(IDE_TIMING_CONFIG));
else
writel(pmif->timings[0], PMAC_IDE_REG(IDE_TIMING_CONFIG));
@@ -452,10 +449,7 @@ pmac_ide_kauai_selectproc(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
- if (drive->select.b.unit & 0x01) {
+ if (drive->dn & 1) {
writel(pmif->timings[1], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG));
writel(pmif->timings[3], PMAC_IDE_REG(IDE_KAUAI_ULTRA_CONFIG));
} else {
@@ -475,9 +469,6 @@ pmac_ide_do_update_timings(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- if (pmif == NULL)
- return;
-
if (pmif->kind == controller_sh_ata6 ||
pmif->kind == controller_un_ata6 ||
pmif->kind == controller_k2_ata6)
@@ -524,11 +515,8 @@ pmac_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
unsigned accessTime, recTime;
unsigned int cycle_time;
- if (pmif == NULL)
- return;
-
/* which drive is it ? */
- timings = &pmif->timings[drive->select.b.unit & 0x01];
+ timings = &pmif->timings[drive->dn & 1];
t = *timings;
cycle_time = ide_pio_cycle_time(drive, pio);
@@ -669,9 +657,9 @@ static void
set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
u8 speed)
{
+ u16 *id = drive->id;
int cycleTime, accessTime = 0, recTime = 0;
unsigned accessTicks, recTicks;
- struct hd_driveid *id = drive->id;
struct mdma_timings_t* tm = NULL;
int i;
@@ -686,8 +674,8 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
}
/* Check if drive provides explicit DMA cycle time */
- if ((id->field_valid & 2) && id->eide_dma_time)
- cycleTime = max_t(int, id->eide_dma_time, cycleTime);
+ if ((id[ATA_ID_FIELD_VALID] & 2) && id[ATA_ID_EIDE_DMA_TIME])
+ cycleTime = max_t(int, id[ATA_ID_EIDE_DMA_TIME], cycleTime);
/* OHare limits according to some old Apple sources */
if ((intf_type == controller_ohare) && (cycleTime < 150))
@@ -805,9 +793,9 @@ static void pmac_ide_set_dma_mode(ide_drive_t *drive, const u8 speed)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- int unit = (drive->select.b.unit & 0x01);
int ret = 0;
u32 *timings, *timings2, tl[2];
+ u8 unit = drive->dn & 1;
timings = &pmif->timings[unit];
timings2 = &pmif->timings[unit+2];
@@ -966,11 +954,11 @@ static void pmac_ide_init_dev(ide_drive_t *drive)
if (pmif->mediabay) {
#ifdef CONFIG_PMAC_MEDIABAY
if (check_media_bay_by_base(pmif->regbase, MB_CD) == 0) {
- drive->noprobe = 0;
+ drive->dev_flags &= ~IDE_DFLAG_NOPROBE;
return;
}
#endif
- drive->noprobe = 1;
+ drive->dev_flags |= IDE_DFLAG_NOPROBE;
}
}
@@ -1535,18 +1523,6 @@ use_pio_instead:
return 0; /* revert to PIO for this request */
}
-/* Teardown mappings after DMA has completed. */
-static void
-pmac_ide_destroy_dmatable (ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
-
- if (hwif->sg_nents) {
- ide_destroy_dmatable(drive);
- hwif->sg_nents = 0;
- }
-}
-
/*
* Prepare a DMA transfer. We build the DMA table, adjust the timings for
* a read on KeyLargo ATA/66 and mark us as waiting for DMA completion
@@ -1558,12 +1534,7 @@ pmac_ide_dma_setup(ide_drive_t *drive)
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
struct request *rq = HWGROUP(drive)->rq;
- u8 unit = (drive->select.b.unit & 0x01);
- u8 ata4;
-
- if (pmif == NULL)
- return 1;
- ata4 = (pmif->kind == controller_kl_ata4);
+ u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
if (!pmac_ide_build_dmatable(drive, rq)) {
ide_map_sg(drive, rq);
@@ -1617,17 +1588,15 @@ pmac_ide_dma_end (ide_drive_t *drive)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
u32 dstat;
-
- if (pmif == NULL)
- return 0;
- dma = pmif->dma_regs;
drive->waiting_for_dma = 0;
dstat = readl(&dma->status);
writel(((RUN|WAKE|DEAD) << 16), &dma->control);
- pmac_ide_destroy_dmatable(drive);
+
+ ide_destroy_dmatable(drive);
+
/* verify good dma status. we don't check for ACTIVE beeing 0. We should...
* in theory, but with ATAPI decices doing buffer underruns, that would
* cause us to disable DMA, which isn't what we want
@@ -1647,13 +1616,9 @@ pmac_ide_dma_test_irq (ide_drive_t *drive)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
unsigned long status, timeout;
- if (pmif == NULL)
- return 0;
- dma = pmif->dma_regs;
-
/* We have to things to deal with here:
*
* - The dbdma won't stop if the command was started
@@ -1672,9 +1637,6 @@ pmac_ide_dma_test_irq (ide_drive_t *drive)
status = readl(&dma->status);
if (!(status & ACTIVE))
return 1;
- if (!drive->waiting_for_dma)
- printk(KERN_WARNING "ide%d, ide_dma_test_irq \
- called while not waiting\n", HWIF(drive)->index);
/* If dbdma didn't execute the STOP command yet, the
* active bit is still set. We consider that we aren't
@@ -1709,14 +1671,9 @@ pmac_ide_dma_lost_irq (ide_drive_t *drive)
ide_hwif_t *hwif = drive->hwif;
pmac_ide_hwif_t *pmif =
(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
- volatile struct dbdma_regs __iomem *dma;
- unsigned long status;
-
- if (pmif == NULL)
- return;
- dma = pmif->dma_regs;
+ volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
+ unsigned long status = readl(&dma->status);
- status = readl(&dma->status);
printk(KERN_ERR "ide-pmac lost interrupt, dma status: %lx\n", status);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 23:01:12 +0300