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Make sure that DMA channels 2 and 3 are setup as external for the podulebus 

on RiscPC machines.
This commit is contained in:
mark 1996-10-29 23:22:57 +00:00
parent 7824cc4e83
commit 8d9b74e953
1 changed files with 13 additions and 1 deletions
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14
sys/arch/arm32/mainbus/iomd.c
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@ -1,4 +1,4 @@
/* $NetBSD: iomd.c,v 1.3 1996/10/13 03:06:21 christos Exp $ */
/* $NetBSD: iomd.c,v 1.4 1996/10/29 23:22:57 mark Exp $ */
/*
* Copyright (c) 1996 Mark Brinicombe.
@ -151,6 +151,18 @@ iomdattach(parent, self, aux)
combo_time = ReadByte(IOMD_IOTCR);
printf(", combo cycle type=%c", 'A' + ((combo_time >> 2) & 3));
printf("\n");
switch (id) {
#ifdef CPU_ARM7500
case ARM7500_IOC_ID:
break;
#else
case RPC600_IOMD_ID:
/* DMA channels 2 & 3 are external */
WriteByte(IOMD_DMAEXT, 0x0c);
break;
#endif /* CPU_ARM7500 */
}
}
struct cfattach iomd_ca = {