1 /* $NetBSD: flash.c,v 1.2 2007/10/17 19:54:19 garbled Exp $ */ 2 3 /* 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at Sandburst Corp. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: flash.c,v 1.2 2007/10/17 19:54:19 garbled Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/device.h> 44 #include <sys/systm.h> 45 46 #include <machine/bus.h> 47 #include <arch/evbppc/pmppc/dev/mainbus.h> 48 49 struct flash_softc { 50 struct device sc_dev; 51 bus_space_tag_t sc_tag; 52 bus_space_handle_t sc_handle; 53 u_int32_t sc_addr; 54 u_int32_t sc_size; 55 u_int32_t sc_width; 56 }; 57 58 static int flash_match(struct device *, struct cfdata *, void *); 59 static void flash_attach(struct device *, struct device *, void *); 60 61 CFATTACH_DECL(flash, sizeof(struct flash_softc), 62 flash_match, flash_attach, NULL, NULL); 63 64 int 65 flash_match(struct device *parent, struct cfdata *cf, void *aux) 66 { 67 struct mainbus_attach_args *maa = aux; 68 69 return (strcmp(maa->mb_name, "flash") == 0); 70 } 71 72 void 73 flash_attach(struct device *parent, struct device *self, void *aux) 74 { 75 struct mainbus_attach_args *maa = aux; 76 struct flash_softc *sc = (struct flash_softc *)self; 77 78 sc->sc_tag = maa->mb_bt; 79 sc->sc_addr = maa->mb_addr; 80 sc->sc_size = maa->u.mb_flash.size / 8; /* bytes */ 81 sc->sc_width = maa->u.mb_flash.width; 82 83 printf(": %d Mbyte, %d bits wide\n", sc->sc_size / (1024*1024), 84 sc->sc_width); 85 #if 0 86 /* The extend map doesn't cover this area. */ 87 if (bus_space_map(sc->sc_tag, sc->sc_addr, sc->sc_size, 0, 88 &sc->sc_handle)) { 89 printf("%s: can't map i/o space\n", self->dv_xname); 90 return; 91 } 92 #endif 93 94 printf("%s: driver not implemented\n", self->dv_xname); 95 } 96