/* * Autoconfiguration support for the Texas Instruments OMAP TIPB. * Based on arm/xscale/pxa2x0.c which in turn was derived from * arm/sa11x0/sa11x0.c. The code to do the early attach was initially derived * from arch/sparc/dev/obio.c. * * Copyright (c) 2002, 2005 Genetec Corporation. All rights reserved. * Written by Hiroyuki Bessho for Genetec Corporation. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Genetec Corporation. * 4. The name of Genetec Corporation may not be used to endorse or * promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * Copyright (c) 1997, 1998, 2001, The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by IWAMOTO Toshihiro, Ichiro FUKUHARA and Paul Kranenburg. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * Copyright (c) 1999 * Shin Takemura and PocketBSD Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the PocketBSD project * and its contributors. * 4. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: omapl1x_tipb.c,v 1.1 2013/10/02 16:48:26 matt Exp $"); #include "locators.h" #include #include #include #include #include #include #include #include #include /* * XXX. Do we really need this ? #include * Atleast commenting this makes it more generic. */ #include #include struct tipb_softc { struct device sc_dev; bus_dma_tag_t sc_dmac; }; /* prototypes */ static int tipb_match(struct device *, struct cfdata *, void *); static void tipb_attach(struct device *, struct device *, void *); static int tipb_search(struct device *, struct cfdata *, const int *, void *); static int tipb_print(void *, const char *); /* attach structures */ CFATTACH_DECL_NEW(tipb, sizeof(struct tipb_softc), tipb_match, tipb_attach, NULL, NULL); static int tipb_attached; extern struct arm32_bus_dma_tag omapl1x_bus_dma_tag; /* * There are some devices that need to be set up before all the others. The * earlies array contains their names. tipb_attach() and tipb_search() work * together to attach these devices in the order they appear in this array * before any other TIPB devices are attached. */ static const char * const earlies[] = { OMAP_INTC_DEVICE, "omapl1xtimer", "omapl1xpsc", NULL }; static int tipb_match(struct device *parent, struct cfdata *match, void *aux) { if (tipb_attached) return 0; return 1; } static void tipb_attach(struct device *parent, struct device *self, void *aux) { struct tipb_softc *sc = (struct tipb_softc *)self; tipb_attached = 1; #if NOMAPDMAC > 0 #error DMA not implemented sc->sc_dmac = &omap_bus_dma_tag; #else sc->sc_dmac = omap_bus_dma_init(&omapl1x_bus_dma_tag); #endif aprint_normal(": OMAP L1X Texas Instruments Peripheral Bus\n"); aprint_naive("\n"); /* * There are some devices that need to be set up before all the * others. The earlies array contains their names. Find them and * attach them in the order they appear in the array. */ const char *const *earlyp; for (earlyp = earlies; *earlyp != NULL; earlyp++) /* * The bus search function is passed an aux argument that * "describes the device that has been found". The type of it * is void *. However, I want to pass a constant string, so * use __UNCONST to convince the compiler that this is ok. */ config_search_ia(tipb_search, self, "tipb", __UNCONST(*earlyp)); /* * Attach all other devices */ config_search_ia(tipb_search, self, "tipb", NULL); } static int tipb_search(struct device *parent, struct cfdata *cf, const int *ldesc, void *aux) { struct tipb_softc *sc = (struct tipb_softc *)parent; struct tipb_attach_args aa; const char *const name = (const char *const)aux; /* Check whether we're looking for a specifically named device */ if (name != NULL && strcmp(name, cf->cf_name) != 0) return (0); switch (cf->cf_loc[TIPBCF_MULT]) { case 1: aa.tipb_iot = &omap_bs_tag; break; case 2: aa.tipb_iot = &omap_a2x_bs_tag; break; case 4: aa.tipb_iot = &omap_a4x_bs_tag; break; default: panic("Unsupported TIPB multiplier."); break; } aa.tipb_dmac = sc->sc_dmac; aa.tipb_addr = cf->cf_loc[TIPBCF_ADDR]; aa.tipb_size = cf->cf_loc[TIPBCF_SIZE]; aa.tipb_intr = cf->cf_loc[TIPBCF_INTR]; aa.tipb_mult = cf->cf_loc[TIPBCF_MULT]; if (config_match(parent, cf, &aa)) config_attach(parent, cf, &aa, tipb_print); return 0; } static int tipb_print(void *aux, const char *name) { struct tipb_attach_args *sa = (struct tipb_attach_args*)aux; if (sa->tipb_addr != TIPBCF_ADDR_DEFAULT) { aprint_normal(" addr 0x%08lx", sa->tipb_addr); if (sa->tipb_size > TIPBCF_SIZE_DEFAULT) aprint_normal("-0x%08lx", sa->tipb_addr + sa->tipb_size-1); } if (sa->tipb_intr != TIPBCF_INTR_DEFAULT) aprint_normal(" intr %d", sa->tipb_intr); return (UNCONF); }