1 /*- 2 * Copyright (c) 2012 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Matt Thomas of 3am Software Foundry. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include "locators.h" 31 32 #include <sys/cdefs.h> 33 34 __KERNEL_RCSID(1, "$NetBSD: bcm53xx_sdhc.c,v 1.1 2012/09/01 00:04:44 matt Exp $"); 35 36 #include <sys/bus.h> 37 #include <sys/device.h> 38 #include <sys/intr.h> 39 #include <sys/systm.h> 40 41 #include <arm/broadcom/bcm53xx_reg.h> 42 #include <arm/broadcom/bcm53xx_var.h> 43 44 #include <dev/sdmmc/sdhcreg.h> 45 #include <dev/sdmmc/sdhcvar.h> 46 47 static int sdhc_ccb_match(device_t, cfdata_t, void *); 48 static void sdhc_ccb_attach(device_t, device_t, void *); 49 50 struct sdhc_ccb_softc { 51 struct sdhc_softc ccbsc_sc; 52 bus_space_tag_t ccbsc_bst; 53 bus_space_handle_t ccbsc_bsh; 54 struct sdhc_host *ccbsc_hosts[1]; 55 void *ccbsc_ih; 56 }; 57 58 CFATTACH_DECL_NEW(sdhc_ccb, sizeof(struct sdhc_ccb_softc), 59 sdhc_ccb_match, sdhc_ccb_attach, NULL, NULL); 60 61 static int 62 sdhc_ccb_match(device_t parent, cfdata_t cf, void *aux) 63 { 64 struct bcmccb_attach_args * const ccbaa = aux; 65 const struct bcm_locators * const loc = &ccbaa->ccbaa_loc; 66 67 if (strcmp(cf->cf_name, loc->loc_name)) 68 return 0; 69 70 KASSERT(cf->cf_loc[BCMCCBCF_PORT] == BCMCCBCF_PORT_DEFAULT); 71 72 return 1; 73 } 74 75 static void 76 sdhc_ccb_attach(device_t parent, device_t self, void *aux) 77 { 78 struct sdhc_ccb_softc * const ccbsc = device_private(self); 79 struct sdhc_softc * const sc = &ccbsc->ccbsc_sc; 80 struct bcmccb_attach_args * const ccbaa = aux; 81 const struct bcm_locators * const loc = &ccbaa->ccbaa_loc; 82 83 ccbsc->ccbsc_bst = ccbaa->ccbaa_ccb_bst; 84 bus_space_subregion(ccbsc->ccbsc_bst, ccbaa->ccbaa_ccb_bsh, 85 loc->loc_offset, loc->loc_size, &ccbsc->ccbsc_bsh); 86 87 sc->sc_dev = self; 88 sc->sc_dmat = ccbaa->ccbaa_dmat; 89 sc->sc_host = ccbsc->ccbsc_hosts; 90 sc->sc_flags |= SDHC_FLAG_32BIT_ACCESS; 91 sc->sc_flags |= SDHC_FLAG_HAVE_CGM; 92 //sc->sc_flags |= SDHC_FLAG_USE_DMA; 93 94 aprint_naive(": SDHC controller\n"); 95 aprint_normal(": SDHC controller%s\n", 96 (sc->sc_flags & SDHC_FLAG_USE_DMA) ? " (DMA enabled)" : ""); 97 98 #if 1 99 int error = sdhc_host_found(sc, ccbsc->ccbsc_bst, ccbsc->ccbsc_bsh, 100 loc->loc_size); 101 if (error != 0) { 102 aprint_error_dev(self, "couldn't initialize host, error=%d\n", 103 error); 104 goto fail; 105 } 106 #endif 107 108 ccbsc->ccbsc_ih = intr_establish(loc->loc_intrs[0], IPL_VM, IST_LEVEL, 109 sdhc_intr, sc); 110 if (ccbsc->ccbsc_ih == NULL) { 111 aprint_error_dev(self, "failed to establish interrupt %d\n", 112 loc->loc_intrs[0]); 113 goto fail; 114 } 115 aprint_normal_dev(self, "interrupting on irq %d\n", 116 loc->loc_intrs[0]); 117 118 return; 119 120 fail: 121 if (ccbsc->ccbsc_ih) { 122 intr_disestablish(ccbsc->ccbsc_ih); 123 ccbsc->ccbsc_ih = NULL; 124 } 125 } 126