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212 lines
6.5 KiB
C
212 lines
6.5 KiB
C
/* $NetBSD: plb.c,v 1.21 2013/11/21 13:33:15 kiyohara Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* 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 WASABI SYSTEMS, INC
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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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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: plb.c,v 1.21 2013/11/21 13:33:15 kiyohara Exp $");
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#include "locators.h"
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#include "emac.h"
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#define _POWERPC_BUS_DMA_PRIVATE
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/extent.h>
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#include <sys/malloc.h>
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#include <sys/bus.h>
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#include <sys/cpu.h>
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#include <powerpc/ibm4xx/cpu.h>
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#include <powerpc/ibm4xx/spr.h>
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#include <powerpc/ibm4xx/dev/malvar.h>
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#include <powerpc/ibm4xx/dev/plbvar.h>
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/*
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* The devices that attach to the processor local bus on the 405GP CPU.
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*/
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const struct plb_dev plb_devs [] = {
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/* IBM 405GP */
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{ IBM405GP, "cpu", },
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{ IBM405GP, "ecc", },
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{ IBM405GP, "opb", },
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{ IBM405GP, "pchb", },
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/* IBM 405GPr */
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{ IBM405GPR, "cpu", },
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{ IBM405GPR, "ecc", },
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{ IBM405GPR, "opb", },
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{ IBM405GPR, "pchb", },
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{ IBM405GPR, "exb", },
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/* AMCC 405EX / EXR */
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{ AMCC405EX, "cpu", },
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{ AMCC405EX, "ecc", },
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{ AMCC405EX, "opb", },
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{ AMCC405EX, "dwctwo", },
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{ 0, NULL }
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};
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static int plb_match(device_t, cfdata_t, void *);
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static void plb_attach(device_t, device_t, void *);
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static int plb_print(void *, const char *);
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CFATTACH_DECL_NEW(plb, 0, plb_match, plb_attach, NULL, NULL);
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/*
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* "generic" DMA struct, nothing special.
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*/
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struct powerpc_bus_dma_tag ibm4xx_default_bus_dma_tag = {
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0, /* _bounce_thresh */
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_bus_dmamap_create,
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_bus_dmamap_destroy,
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_bus_dmamap_load,
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_bus_dmamap_load_mbuf,
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_bus_dmamap_load_uio,
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_bus_dmamap_load_raw,
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_bus_dmamap_unload,
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_bus_dmamap_sync,
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_bus_dmamem_alloc,
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_bus_dmamem_free,
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_bus_dmamem_map,
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_bus_dmamem_unmap,
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_bus_dmamem_mmap,
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_bus_dma_phys_to_bus_mem_generic,
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_bus_dma_bus_mem_to_phys_generic,
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};
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/*
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* Probe for the plb; always succeeds.
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*/
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static int
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plb_match(device_t parent, cfdata_t cf, void *aux)
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{
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return 1;
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}
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/*
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* Attach the processor local bus.
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*/
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static void
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plb_attach(device_t parent, device_t self, void *aux)
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{
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struct plb_attach_args paa;
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struct plb_dev *local_plb_devs = aux;
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int pvr, i;
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aprint_naive("\n");
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aprint_normal("\n");
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pvr = mfpvr() >> 16;
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#if NEMAC > 0
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mal_attach(pvr);
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#endif
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for (i = 0; plb_devs[i].plb_name != NULL; i++) {
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if (plb_devs[i].plb_pvr != pvr)
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continue;
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paa.plb_name = plb_devs[i].plb_name;
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paa.plb_addr = PLBCF_ADDR_DEFAULT;
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paa.plb_dmat = &ibm4xx_default_bus_dma_tag;
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paa.plb_irq = PLBCF_IRQ_DEFAULT;
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(void) config_found_ia(self, "plb", &paa, plb_print);
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}
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while (local_plb_devs && local_plb_devs->plb_name != NULL) {
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if (local_plb_devs->plb_pvr != pvr)
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continue;
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paa.plb_name = local_plb_devs->plb_name;
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paa.plb_addr = PLBCF_ADDR_DEFAULT;
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paa.plb_dmat = &ibm4xx_default_bus_dma_tag;
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paa.plb_irq = PLBCF_IRQ_DEFAULT;
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(void) config_found_ia(self, "plb", &paa, plb_print);
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local_plb_devs++;
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}
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}
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static int
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plb_print(void *aux, const char *pnp)
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{
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struct plb_attach_args *paa = aux;
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if (pnp)
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aprint_normal("%s at %s", paa->plb_name, pnp);
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if (paa->plb_addr != PLBCF_ADDR_DEFAULT)
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aprint_normal(" address 0x%08x", paa->plb_addr);
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if (paa->plb_irq != PLBCF_IRQ_DEFAULT)
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aprint_normal(" irq %d", paa->plb_irq);
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return UNCONF;
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}
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