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Interupts must be disabled and cleared before the PROM is read, as the int 

line is shared with one of the PROMs address lines.
From PR #1478 by Jukka Marin.
This commit is contained in:
is 1996-03-21 21:00:21 +00:00
parent 381d40e063
commit 2ecf0a7b85
1 changed files with 9 additions and 1 deletions
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10
sys/arch/amiga/dev/if_ed.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_ed.c,v 1.18 1996/03/17 01:17:32 thorpej Exp $ */
/* $NetBSD: if_ed.c,v 1.19 1996/03/21 21:00:21 is Exp $ */
/*
* Device driver for National Semiconductor DS8390/WD83C690 based ethernet
@ -237,6 +237,14 @@ ed_zbus_attach(parent, self, aux)
sc->mem_ring =
sc->mem_start + ((sc->txb_cnt * ED_TXBUF_SIZE) << ED_PAGE_SHIFT);
/*
* Interupts must be inactive when reading the prom, as the interupt
* line is shared with one of its address lines.
*/
NIC_PUT(sc, ED_P0_IMR, 0x00); /* disable ints */
NIC_PUT(sc, ED_P0_ISR, 0xff); /* clear ints */
/*
* read the ethernet address from the board
*/