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In the reset() function, preserve the current cable selection bit. 

If in auto media select mode, this avoids losing carrier every time
the lance code decides to re-initialize.
This commit is contained in:
pk 1998-07-29 16:10:57 +00:00
parent 33a72d432a
commit 718ff722b7
1 changed files with 8 additions and 3 deletions
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11
sys/arch/sparc/dev/if_le_ledma.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_le_ledma.c,v 1.1 1998/07/27 23:59:11 pk Exp $ */
/* $NetBSD: if_le_ledma.c,v 1.2 1998/07/29 16:10:57 pk Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -288,16 +288,21 @@ lehwreset(sc)
{
struct le_softc *lesc = (struct le_softc *)sc;
struct dma_softc *dma = lesc->sc_dma;
u_long aui_bit;
/*
* Reset DMA channel.
*/
aui_bit = dma->sc_regs->csr & DE_AUI_TP;
DMA_RESET(dma);
dma->sc_regs->en_bar = lesc->sc_laddr & 0xff000000;
DMA_ENINTR(dma);
#define D_DSBL_WRINVAL D_DSBL_SCSI_DRN /* XXX: fix dmareg.h */
/* Disable E-cache invalidates on chip writes */
dma->sc_regs->csr |= D_DSBL_WRINVAL;
/*
* Disable E-cache invalidates on chip writes.
* Retain previous cable selection bit.
*/
dma->sc_regs->csr |= (D_DSBL_WRINVAL | aui_bit);
}
hide void