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dmamatch never added in the offset for the dma registers to the VA, 

and thus probed the wrong address on the 4/300 (but it worked because
it was probing the esp0 registers!).

now that bus_tmp() adds the offset in for us [as of obio 1.19] i
discoved that a byte access to the dma registers is not allowed.
so, i've change probeget to use a word access.
This commit is contained in:
chuck 1996-01-12 22:03:39 +00:00
parent afb262e8da
commit b5ddd8431d
1 changed files with 2 additions and 2 deletions
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4
sys/arch/sparc/dev/dma.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dma.c,v 1.15 1995/12/18 23:58:31 pk Exp $ */
/* $NetBSD: dma.c,v 1.16 1996/01/12 22:03:39 chuck Exp $ */
/*
* Copyright (c) 1994 Peter Galbavy. All rights reserved.
@ -98,7 +98,7 @@ dmamatch(parent, vcf, aux)
if (ca->ca_bustype == BUS_SBUS)
return (1);
ra->ra_len = NBPG;
return (probeget(ra->ra_vaddr, 1) != -1);
return (probeget(ra->ra_vaddr, 4) != -1);
}
/*