Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove the `delay port' stuff since nothing uses it anymore (can't reliably 

use it on modern chipsets).
This commit is contained in:
thorpej 1998-04-15 01:44:23 +00:00
parent 51b0ae9977
commit 8c1b46c2f5
2 changed files with 2 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/dev/isa/isa.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: isa.c,v 1.98 1998/01/12 09:43:41 thorpej Exp $ */
/* $NetBSD: isa.c,v 1.99 1998/04/15 01:44:23 thorpej Exp $ */
/*-
* Copyright (c) 1993, 1994 Charles Hannum. All rights reserved.
@ -119,14 +119,6 @@ isaattach(parent, self, aux)
if (bus_space_map(sc->sc_iot, IO_DMAPG, 0xf, 0, &sc->sc_dmapgh))
panic("isaattach: can't map DMA page registers");
/*
* Map port 0x84, which causes a 1.25us delay when read.
* We do this now, since several drivers need it.
*/
if (bus_space_subregion(sc->sc_iot, sc->sc_dmapgh, 0x04, 1,
&sc->sc_delaybah))
panic("isaattach: can't map `delay port'"); /* XXX */
TAILQ_INIT(&sc->sc_subdevs);
#ifdef __BROKEN_INDIRECT_CONFIG
config_scan(isascan, self);
@ -186,7 +178,6 @@ isascan(parent, match)
ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq;
ia.ia_drq = cf->cf_drq;
ia.ia_drq2 = cf->cf_drq2;
ia.ia_delaybah = sc->sc_delaybah;
if ((*cf->cf_attach->ca_match)(parent, match, &ia) > 0)
config_attach(parent, match, &ia, isaprint);
@ -216,7 +207,6 @@ isasearch(parent, cf, aux)
ia.ia_irq = cf->cf_irq == 2 ? 9 : cf->cf_irq;
ia.ia_drq = cf->cf_drq;
ia.ia_drq2 = cf->cf_drq2;
ia.ia_delaybah = sc->sc_delaybah;
tryagain = 0;
if ((*cf->cf_attach->ca_match)(parent, cf, &ia) > 0) {

12
sys/dev/isa/isavar.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: isavar.h,v 1.31 1998/02/17 18:27:10 cgd Exp $ */
/* $NetBSD: isavar.h,v 1.32 1998/04/15 01:44:23 thorpej Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -136,8 +136,6 @@ struct isa_attach_args {
int ia_maddr; /* physical i/o mem addr */
u_int ia_msize; /* size of i/o memory */
void *ia_aux; /* driver specific */
bus_space_handle_t ia_delaybah; /* i/o handle for `delay port' */
};
#include "locators.h"
@ -188,14 +186,6 @@ struct isa_softc {
int sc_dmareads; /* state for isa_dmadone() */
int sc_dmafinished; /* DMA completion state */
/*
* This i/o handle is used to map port 0x84, which is
* read to provide a 1.25us delay. This access handle
* is mapped in isaattach(), and exported to drivers
* via isa_attach_args.
*/
bus_space_handle_t sc_delaybah;
};
#define ISA_DRQ_ISFREE(isadev, drq) \