89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/* $NetBSD: flash.c,v 1.5 2011/07/01 19:03:09 dyoung Exp $ */
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/*
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* Copyright (c) 2002 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 Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp.
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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: flash.c,v 1.5 2011/07/01 19:03:09 dyoung Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <arch/evbppc/pmppc/dev/mainbus.h>
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struct flash_softc {
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device_t sc_dev;
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bus_space_tag_t sc_tag;
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bus_space_handle_t sc_handle;
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u_int32_t sc_addr;
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u_int32_t sc_size;
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u_int32_t sc_width;
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};
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static int flash_match(device_t, cfdata_t, void *);
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static void flash_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(flash, sizeof(struct flash_softc),
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flash_match, flash_attach, NULL, NULL);
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int
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flash_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct mainbus_attach_args *maa = aux;
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return (strcmp(maa->mb_name, "flash") == 0);
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}
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void
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flash_attach(device_t parent, device_t self, void *aux)
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{
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struct mainbus_attach_args *maa = aux;
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struct flash_softc *sc = device_private(self);
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sc->sc_tag = maa->mb_bt;
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sc->sc_addr = maa->mb_addr;
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sc->sc_size = maa->u.mb_flash.size / 8; /* bytes */
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sc->sc_width = maa->u.mb_flash.width;
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aprint_normal(": %d Mbyte, %d bits wide\n", sc->sc_size / (1024*1024),
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sc->sc_width);
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#if 0
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/* The extend map doesn't cover this area. */
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if (bus_space_map(sc->sc_tag, sc->sc_addr, sc->sc_size, 0,
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&sc->sc_handle)) {
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aprint_error_dev(self, "can't map i/o space\n");
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return;
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}
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#endif
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aprint_error_dev(self, "driver not implemented\n");
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}
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