1 /* $NetBSD: flash.c,v 1.3 2008/04/28 20:23:17 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: flash.c,v 1.3 2008/04/28 20:23:17 martin Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/device.h> 37 #include <sys/systm.h> 38 39 #include <machine/bus.h> 40 #include <arch/evbppc/pmppc/dev/mainbus.h> 41 42 struct flash_softc { 43 struct device sc_dev; 44 bus_space_tag_t sc_tag; 45 bus_space_handle_t sc_handle; 46 u_int32_t sc_addr; 47 u_int32_t sc_size; 48 u_int32_t sc_width; 49 }; 50 51 static int flash_match(struct device *, struct cfdata *, void *); 52 static void flash_attach(struct device *, struct device *, void *); 53 54 CFATTACH_DECL(flash, sizeof(struct flash_softc), 55 flash_match, flash_attach, NULL, NULL); 56 57 int 58 flash_match(struct device *parent, struct cfdata *cf, void *aux) 59 { 60 struct mainbus_attach_args *maa = aux; 61 62 return (strcmp(maa->mb_name, "flash") == 0); 63 } 64 65 void 66 flash_attach(struct device *parent, struct device *self, void *aux) 67 { 68 struct mainbus_attach_args *maa = aux; 69 struct flash_softc *sc = (struct flash_softc *)self; 70 71 sc->sc_tag = maa->mb_bt; 72 sc->sc_addr = maa->mb_addr; 73 sc->sc_size = maa->u.mb_flash.size / 8; /* bytes */ 74 sc->sc_width = maa->u.mb_flash.width; 75 76 printf(": %d Mbyte, %d bits wide\n", sc->sc_size / (1024*1024), 77 sc->sc_width); 78 #if 0 79 /* The extend map doesn't cover this area. */ 80 if (bus_space_map(sc->sc_tag, sc->sc_addr, sc->sc_size, 0, 81 &sc->sc_handle)) { 82 printf("%s: can't map i/o space\n", self->dv_xname); 83 return; 84 } 85 #endif 86 87 printf("%s: driver not implemented\n", self->dv_xname); 88 } 89