163 lines
4.3 KiB
C
163 lines
4.3 KiB
C
/* $NetBSD: autoconf.c,v 1.9 2014/03/18 18:20:41 riastradh Exp $ */
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/*-
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* Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Raytheon BBN Technologies Corp and Defense Advanced Research Projects
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* Agency and which was developed by Matt Thomas of 3am Software Foundry.
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*
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* This material is based upon work supported by the Defense Advanced Research
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* Projects Agency and Space and Naval Warfare Systems Center, Pacific, under
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* Contract No. N66001-09-C-2073.
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* Approved for Public Release, Distribution Unlimited
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.9 2014/03/18 18:20:41 riastradh Exp $");
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#define __INTR_PRIVATE
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#include "locators.h"
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/cpu.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <powerpc/booke/cpuvar.h>
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/*
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* Determine device configuration for a machine.
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*/
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void
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cpu_configure(void)
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{
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intr_init();
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calc_delayconst();
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if (config_rootfound("mainbus", NULL) == NULL)
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panic("%s: mainbus not configured", __func__);
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spl0();
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}
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static volatile int rootconf_timo = 1;
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/*
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* Setup root device.
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* Configure swap area.
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*/
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void
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cpu_rootconf(void)
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{
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/*
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* We wait up to 10 seconds for a bootable device to be found.
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*/
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while (rootconf_timo > 0) {
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if (booted_device != NULL) {
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aprint_normal_dev(booted_device, "boot device\n");
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break;
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}
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if (root_string[0] != '\0'
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&& (booted_device = device_find_by_xname(root_string)) != NULL) {
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aprint_normal_dev(booted_device, "boot device\n");
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break;
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}
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if (EWOULDBLOCK == kpause("autoconf", true, 1, NULL)) {
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rootconf_timo--;
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}
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}
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rootconf();
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}
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void
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device_register(device_t dev, void *aux)
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{
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if (cpu_md_ops.md_device_register != NULL)
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(*cpu_md_ops.md_device_register)(dev, aux);
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if (booted_device == NULL) {
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if (root_string[0] != '\0'
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&& !strcmp(device_xname(dev), root_string)) {
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aprint_normal_dev(dev, "boot device\n");
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booted_device = dev;
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} else {
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rootconf_timo = 5 * hz;
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}
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}
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}
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static bool mainbus_found;
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static int
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mainbus_print(void *aux, const char *pnp)
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{
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struct mainbus_attach_args *ma = aux;
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if (pnp != NULL)
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return QUIET;
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if (pnp)
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aprint_normal("%s at %s", ma->ma_name, pnp);
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if (ma->ma_node != MAINBUSCF_NODE_DEFAULT)
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aprint_normal(" node %d", ma->ma_node);
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return (UNCONF);
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}
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static int
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mainbus_match(device_t parent, cfdata_t cf, void *aux)
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{
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return mainbus_found == false;
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}
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static void
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mainbus_attach(device_t parent, device_t self, void *aux)
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{
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struct mainbus_attach_args ma;
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mainbus_found = true;
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aprint_normal("\n");
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ma.ma_name = "cpunode";
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ma.ma_node = 0;
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ma.ma_memt = curcpu()->ci_softc->cpu_bst;
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ma.ma_le_memt = curcpu()->ci_softc->cpu_le_bst;
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ma.ma_dmat = &booke_bus_dma_tag;
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config_found_sm_loc(self, "mainbus", NULL, &ma, mainbus_print, NULL);
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}
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CFATTACH_DECL_NEW(mainbus, 0, mainbus_match, mainbus_attach, NULL, NULL);
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