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lsi: never set DMA FIFO Empty (DFE) bit in DSTAT register
53C895A datasheet says: "This bit (DFE) is a pure status bit and will not cause an interrupt" This bit is already auto-generated in lsi_read_reg when reading the DSTAT register. This fixes IBM RS/6000 7020 firmware, which is: - resetting the adapter - enabling all interrupt sources (including DIP, ie interrupts from DSTAT) - waiting for ISTAT0 to become 0 (including DIP=0, ie no interrupt coming from DSTAT) Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Message-Id: <1471505489-1221-5-git-send-email-hpoussin@reactos.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
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@ -326,7 +326,7 @@ static void lsi_soft_reset(LSIState *s)
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s->istat0 = 0;
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s->istat1 = 0;
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s->dcmd = 0x40;
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s->dstat = LSI_DSTAT_DFE;
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s->dstat = 0;
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s->dien = 0;
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s->sist0 = 0;
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s->sist1 = 0;
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