/* $Id: omap2_obio.c,v 1.24 2016/10/15 15:14:20 kiyohara Exp $ */ /* adapted from: */ /* $NetBSD: omap2_obio.c,v 1.24 2016/10/15 15:14:20 kiyohara Exp $ */ /* * Autoconfiguration support for the Texas Instruments OMAP "On Board" I/O. * * Based on arm/omap/omap_emifs.c which in turn was derived * Based on arm/xscale/pxa2x0.c which in turn was derived * from arm/sa11x0/sa11x0.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 "opt_omap.h" #include __KERNEL_RCSID(0, "$NetBSD: omap2_obio.c,v 1.24 2016/10/15 15:14:20 kiyohara Exp $"); #include "locators.h" #include "obio.h" #include #include #include #include #include #include #include #include #include #include #include #include typedef struct { boolean_t cs_valid; ulong cs_addr; ulong cs_size; } obio_csconfig_t; /* global containing the base system frequency */ #ifdef OMAP_MPU_TIMER_CLOCK_FREQ u_int omap_sys_clk = OMAP_MPU_TIMER_CLOCK_FREQ; #else u_int omap_sys_clk; #endif /* prototypes */ static int obio_match(device_t, cfdata_t, void *); static void obio_attach(device_t, device_t, void *); static int obio_search(device_t, cfdata_t, const int *, void *); static int obio_find(device_t, cfdata_t, const int *, void *); static int obio_print(void *, const char *); static void obio_attach_critical(struct obio_softc *); /* attach structures */ CFATTACH_DECL_NEW(obio, sizeof(struct obio_softc), obio_match, obio_attach, NULL, NULL); static uint8_t obio_attached; static int obio_match(device_t parent, cfdata_t match, void *aux) { struct mainbus_attach_args *mb = aux; #ifdef OMAP2_OBIO_0_BASE if (mb->mb_iobase == OMAP2_OBIO_0_BASE && mb->mb_iosize == OMAP2_OBIO_0_SIZE && (obio_attached & 1) == 0) return 1; #endif #ifdef OMAP2_OBIO_1_BASE if (mb->mb_iobase == OMAP2_OBIO_1_BASE && mb->mb_iosize == OMAP2_OBIO_1_SIZE && (obio_attached & 2) == 0) return 1; #endif #ifdef OMAP2_OBIO_2_BASE if (mb->mb_iobase == OMAP2_OBIO_2_BASE && mb->mb_iosize == OMAP2_OBIO_2_SIZE && (obio_attached & 4) == 0) return 1; #endif #ifdef OMAP2_OBIO_3_BASE if (mb->mb_iobase == OMAP2_OBIO_3_BASE && mb->mb_iosize == OMAP2_OBIO_3_SIZE && (obio_attached & 8) == 0) return 1; #endif #ifdef TI_AM335X if (obio_attached == 0) return 1; #endif return 0; } static void obio_attach1(device_t self) { /* * Attach the rest of our devices */ config_search_ia(obio_search, self, "obio", NULL); } static void obio_attach(device_t parent, device_t self, void *aux) { struct obio_softc *sc = device_private(self); struct mainbus_attach_args *mb = (struct mainbus_attach_args *)aux; sc->sc_dev = self; sc->sc_iot = &omap_bs_tag; aprint_normal(": On-Board IO\n"); sc->sc_ioh = 0; sc->sc_dmat = &omap_bus_dma_tag; sc->sc_base = mb->mb_iobase; sc->sc_size = mb->mb_iosize; #ifdef OMAP2_OBIO_0_BASE if (mb->mb_iobase == OMAP2_OBIO_0_BASE) obio_attached |= 1; #endif #ifdef OMAP2_OBIO_1_BASE else if (mb->mb_iobase == OMAP2_OBIO_1_BASE) obio_attached |= 2; #endif #ifdef OMAP2_OBIO_2_BASE else if (mb->mb_iobase == OMAP2_OBIO_2_BASE) obio_attached |= 4; #endif #ifdef OMAP2_OBIO_3_BASE else if (mb->mb_iobase == OMAP2_OBIO_3_BASE) obio_attached |= 8; #endif #ifdef TI_AM335X obio_attached = 1; #endif /* * Attach critical devices first. */ obio_attach_critical(sc); /* * Attach the rest of our devices once all obio devices * have attached. */ config_defer(self, obio_attach1); } static int obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) { struct obio_softc * const sc = device_private(parent); struct obio_attach_args oa; /* Set up the attach args. */ if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) { if (cf->cf_loc[OBIOCF_MULT] == 1) oa.obio_iot = &nobyteacc_bs_tag; else panic("nobyteacc specified for device with " "non-byte multiplier\n"); } else { switch (cf->cf_loc[OBIOCF_MULT]) { case 1: oa.obio_iot = &omap_bs_tag; break; case 2: oa.obio_iot = &omap_a2x_bs_tag; break; case 4: oa.obio_iot = &omap_a4x_bs_tag; break; default: panic("Unsupported EMIFS multiplier."); break; } } oa.obio_dmat = sc->sc_dmat; oa.obio_addr = cf->cf_loc[OBIOCF_ADDR]; oa.obio_size = cf->cf_loc[OBIOCF_SIZE]; oa.obio_intr = cf->cf_loc[OBIOCF_INTR]; oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; oa.obio_edmabase = cf->cf_loc[OBIOCF_EDMABASE]; #if defined(OMAP2) if ((oa.obio_addr >= sc->sc_base) && (oa.obio_addr < (sc->sc_base + sc->sc_size))) { /* XXX * if size was specified, then check it too * otherwise just assume it is OK */ if ((oa.obio_size != OBIOCF_SIZE_DEFAULT) && ((oa.obio_addr + oa.obio_size) >= (sc->sc_base + sc->sc_size))) return 1; /* NG */ if (config_match(parent, cf, &oa)) { config_attach(parent, cf, &oa, obio_print); return 0; /* love it */ } } #endif return UNCONF; /* NG */ } static int obio_find(device_t parent, cfdata_t cf, const int *ldesc, void *aux) { struct obio_attach_args * const oa = aux; if (oa->obio_addr != OBIOCF_ADDR_DEFAULT && oa->obio_addr != cf->cf_loc[OBIOCF_ADDR]) return 0; if (oa->obio_size != OBIOCF_SIZE_DEFAULT && oa->obio_size != cf->cf_loc[OBIOCF_SIZE]) return 0; if (oa->obio_intr != OBIOCF_INTR_DEFAULT && oa->obio_intr != cf->cf_loc[OBIOCF_INTR]) return 0; if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT && oa->obio_intrbase != cf->cf_loc[OBIOCF_INTRBASE]) return 0; /* Set up the attach args. */ if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) { if (cf->cf_loc[OBIOCF_MULT] == 1) oa->obio_iot = &nobyteacc_bs_tag; else panic("nobyteacc specified for device with " "non-byte multiplier\n"); } else { switch (cf->cf_loc[OBIOCF_MULT]) { case 1: oa->obio_iot = &omap_bs_tag; break; case 2: oa->obio_iot = &omap_a2x_bs_tag; break; case 4: oa->obio_iot = &omap_a4x_bs_tag; break; default: panic("Unsupported EMIFS multiplier."); break; } } oa->obio_addr = cf->cf_loc[OBIOCF_ADDR]; oa->obio_size = cf->cf_loc[OBIOCF_SIZE]; oa->obio_intr = cf->cf_loc[OBIOCF_INTR]; oa->obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; oa->obio_edmabase = cf->cf_loc[OBIOCF_EDMABASE]; return config_match(parent, cf, oa); } #if 0 && NOMAP2ICU == 0 #error no avic present in config file #endif static const struct { const char *name; bus_addr_t addr; bool required; } critical_devs[] = { #if defined(OMAP_3530) { .name = "omapscm", .addr = 0x48002000, .required = true }, #endif #if defined(OMAP_2430) || defined(OMAP_2420) { .name = "avic", .addr = INTC_BASE, .required = true }, #endif #if defined(OMAP_3430) { .name = "avic", .addr = INTC_BASE_3430, .required = true }, #endif #if defined(OMAP_3530) { .name = "avic", .addr = INTC_BASE_3530, .required = true }, #endif #if defined(TI_AM335X) { .name = "omapicu", .addr = 0x48200000, .required = true }, #endif { .name = "gpio1", .addr = GPIO1_BASE, .required = false }, { .name = "gpio2", .addr = GPIO2_BASE, .required = false }, { .name = "gpio3", .addr = GPIO3_BASE, .required = false }, #if defined(GPIO4_BASE) { .name = "gpio4", .addr = GPIO4_BASE, .required = false }, #endif #if defined(GPIO5_BASE) { .name = "gpio5", .addr = GPIO5_BASE, .required = false }, #endif #if defined(GPIO6_BASE) { .name = "gpio6", .addr = GPIO6_BASE, .required = false }, #endif #if defined(GPIO7_BASE) { .name = "gpio7", .addr = GPIO7_BASE, .required = false }, #endif #if defined(GPIO8_BASE) { .name = "gpio8", .addr = GPIO8_BASE, .required = false }, #endif #if 0 { .name = "dmac", .addr = DMAC_BASE, .required = true }, #endif #if defined(TI_AM335X) { .name = "prcm", .addr = 0x44e00000, .required = true }, { .name = "sitaracm", .addr = 0x44e10000, .required = true }, { .name = "edma", .addr = 0x49000000, .required = false }, #endif #if defined(OMAP_3530) { .name = "omapdma", .addr = OMAP3530_SDMA_BASE, .required = true }, #endif }; static void obio_attach_critical(struct obio_softc *sc) { struct obio_attach_args oa; cfdata_t cf; size_t i; for (i = 0; i < __arraycount(critical_devs); i++) { oa.obio_iot = sc->sc_iot; #ifdef NOTYET oa.obio_dmat = sc->sc_dmat; #endif oa.obio_addr = critical_devs[i].addr; oa.obio_size = OBIOCF_SIZE_DEFAULT; oa.obio_intr = OBIOCF_INTR_DEFAULT; oa.obio_intrbase = OBIOCF_INTRBASE_DEFAULT; if (oa.obio_addr != OBIOCF_ADDR_DEFAULT && (oa.obio_addr < sc->sc_base || oa.obio_addr >= sc->sc_base + sc->sc_size)) continue; cf = config_search_ia(obio_find, sc->sc_dev, "obio", &oa); if (cf == NULL) { if (critical_devs[i].required) panic( "obio_attach_critical: failed to find %s!", critical_devs[i].name); continue; } if (oa.obio_size == OBIOCF_SIZE_DEFAULT) oa.obio_size = cf->cf_loc[OBIOCF_SIZE]; if (oa.obio_intr == OBIOCF_INTR_DEFAULT) oa.obio_intr = cf->cf_loc[OBIOCF_INTR]; if (oa.obio_intrbase == OBIOCF_INTRBASE_DEFAULT) oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE]; config_attach(sc->sc_dev, cf, &oa, obio_print); } } static int obio_print(void *aux, const char *name) { struct obio_attach_args *oa = (struct obio_attach_args*)aux; if (oa->obio_addr != OBIOCF_ADDR_DEFAULT) { aprint_normal(" addr 0x%08lx", oa->obio_addr); if (oa->obio_size != OBIOCF_SIZE_DEFAULT) aprint_normal("-0x%08lx", oa->obio_addr + oa->obio_size-1); } if (oa->obio_intr != OBIOCF_INTR_DEFAULT) aprint_normal(" intr %d", oa->obio_intr); if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT) aprint_normal(" intrbase %d", oa->obio_intrbase); return UNCONF; }