1262598Simp/*- 2262598Simp * Copyright (c) 2014 Warner Losh. All rights reserved. 3262598Simp * 4262598Simp * Redistribution and use in source and binary forms, with or without 5262598Simp * modification, are permitted provided that the following conditions 6262598Simp * are met: 7262598Simp * 1. Redistributions of source code must retain the above copyright 8262598Simp * notice, this list of conditions and the following disclaimer. 9262598Simp * 2. Redistributions in binary form must reproduce the above copyright 10262598Simp * notice, this list of conditions and the following disclaimer in the 11262598Simp * documentation and/or other materials provided with the distribution. 12262598Simp * 13262598Simp * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14262598Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15262598Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16262598Simp * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17262598Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18262598Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19262598Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20262598Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21262598Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22262598Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23262598Simp * SUCH DAMAGE. 24262598Simp */ 25262598Simp 26262598Simp#include "opt_platform.h" 27262598Simp 28262598Simp#include <sys/cdefs.h> 29262598Simp__FBSDID("$FreeBSD$"); 30262598Simp 31262598Simp#include <sys/param.h> 32262598Simp#include <sys/bus.h> 33262598Simp#include <sys/kernel.h> 34262598Simp#include <sys/module.h> 35262598Simp#include <sys/resource.h> 36262598Simp#include <sys/systm.h> 37262598Simp#include <sys/rman.h> 38262598Simp 39262598Simp#include <machine/bus.h> 40262598Simp 41262598Simp#include <arm/at91/at91var.h> 42262598Simp#include <arm/at91/at91_aicreg.h> 43262598Simp 44262598Simp#ifdef FDT 45262598Simp#include <dev/fdt/fdt_common.h> 46262598Simp#include <dev/ofw/ofw_bus.h> 47262598Simp#include <dev/ofw/ofw_bus_subr.h> 48262598Simp#endif 49262598Simp 50262598Simpstruct sdramc_softc { 51262598Simp struct resource *mem_res; /* Memory resource */ 52262598Simp device_t sc_dev; 53262598Simp}; 54262598Simp 55262598Simpstatic int 56262598Simpat91_sdramc_probe(device_t dev) 57262598Simp{ 58262598Simp#ifdef FDT 59262598Simp if (!ofw_bus_is_compatible(dev, "atmel,at91sam9260-sdramc")) 60262598Simp return (ENXIO); 61262598Simp#endif 62262598Simp device_set_desc(dev, "SDRAMC"); 63262598Simp return (0); 64262598Simp} 65262598Simp 66262598Simpstatic int 67262598Simpat91_sdramc_attach(device_t dev) 68262598Simp{ 69262598Simp int rid, err = 0; 70262598Simp struct sdramc_softc *sc; 71262598Simp 72262598Simp sc = device_get_softc(dev); 73262598Simp sc->sc_dev = dev; 74262598Simp 75262598Simp rid = 0; 76262598Simp sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 77262598Simp RF_ACTIVE); 78262598Simp 79262598Simp if (sc->mem_res == NULL) 80262598Simp panic("couldn't allocate register resources"); 81262598Simp 82262598Simp return (err); 83262598Simp} 84262598Simp 85262598Simpstatic device_method_t at91_sdramc_methods[] = { 86262598Simp DEVMETHOD(device_probe, at91_sdramc_probe), 87262598Simp DEVMETHOD(device_attach, at91_sdramc_attach), 88262598Simp DEVMETHOD_END 89262598Simp}; 90262598Simp 91262598Simpstatic driver_t at91_sdramc_driver = { 92262598Simp "at91_sdramc", 93262598Simp at91_sdramc_methods, 94262598Simp sizeof(struct sdramc_softc), 95262598Simp}; 96262598Simp 97262598Simpstatic devclass_t at91_sdramc_devclass; 98262598Simp 99262598Simp#ifdef FDT 100262598SimpDRIVER_MODULE(at91_sdramc, simplebus, at91_sdramc_driver, at91_sdramc_devclass, NULL, 101262598Simp NULL); 102262598Simp#else 103262598SimpDRIVER_MODULE(at91_sdramc, atmelarm, at91_sdramc_driver, at91_sdramc_devclass, NULL, 104262598Simp NULL); 105262598Simp#endif 106