ide-pmac: skip conservative PIO "downgrade"
We can skip conservative PIO "downgrade" (PIO3 becomes PIO2 etc.) on PMAC. Problem reported by Mikael. Cc: Mikael Pettersson <mikpe@it.uu.se> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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@ -1138,6 +1138,7 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
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hwif->drives[0].autotune = IDE_TUNE_AUTO;
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hwif->drives[1].autotune = IDE_TUNE_AUTO;
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hwif->host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
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IDE_HFLAG_PIO_NO_DOWNGRADE |
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IDE_HFLAG_POST_SET_MODE;
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hwif->pio_mask = ATA_PIO4;
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hwif->set_pio_mode = pmac_ide_set_pio_mode;
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