1 /* $OpenBSD: ahci_fdt.c,v 1.2 2017/02/24 17:12:31 patrick Exp $ */ 2 /* 3 * Copyright (c) 2013,2017 Patrick Wildt <patrick@blueri.se> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #include <sys/param.h> 19 #include <sys/systm.h> 20 #include <sys/buf.h> 21 #include <sys/kernel.h> 22 #include <sys/malloc.h> 23 #include <sys/device.h> 24 #include <sys/queue.h> 25 26 #include <machine/bus.h> 27 #include <machine/fdt.h> 28 29 #include <dev/ic/ahcireg.h> 30 #include <dev/ic/ahcivar.h> 31 32 #include <dev/ofw/openfirm.h> 33 #include <dev/ofw/fdt.h> 34 35 int ahci_fdt_match(struct device *, void *, void *); 36 void ahci_fdt_attach(struct device *, struct device *, void *); 37 int ahci_fdt_detach(struct device *, int); 38 int ahci_fdt_activate(struct device *, int); 39 40 extern int ahci_intr(void *); 41 42 struct cfattach ahci_fdt_ca = { 43 sizeof(struct ahci_softc), 44 ahci_fdt_match, 45 ahci_fdt_attach, 46 ahci_fdt_detach, 47 ahci_fdt_activate 48 }; 49 50 int 51 ahci_fdt_match(struct device *parent, void *match, void *aux) 52 { 53 struct fdt_attach_args *faa = aux; 54 55 return OF_is_compatible(faa->fa_node, "generic-ahci") || 56 OF_is_compatible(faa->fa_node, "snps,dwc-ahci"); 57 } 58 59 void 60 ahci_fdt_attach(struct device *parent, struct device *self, void *aux) 61 { 62 struct ahci_softc *sc = (struct ahci_softc *) self; 63 struct fdt_attach_args *faa = aux; 64 65 if (faa->fa_nreg < 1) 66 return; 67 68 sc->sc_iot = faa->fa_iot; 69 sc->sc_ios = faa->fa_reg[0].size; 70 sc->sc_dmat = faa->fa_dmat; 71 72 if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, 73 faa->fa_reg[0].size, 0, &sc->sc_ioh)) 74 panic("ahci_fdt_attach: bus_space_map failed!"); 75 76 sc->sc_ih = arm_intr_establish_fdt(faa->fa_node, IPL_BIO, 77 ahci_intr, sc, sc->sc_dev.dv_xname); 78 if (sc->sc_ih == NULL) { 79 printf(": unable to establish interrupt\n"); 80 goto unmap; 81 } 82 83 printf(":"); 84 85 if (ahci_attach(sc) != 0) { 86 /* error printed by ahci_attach */ 87 goto irq; 88 } 89 90 return; 91 irq: 92 arm_intr_disestablish_fdt(sc->sc_ih); 93 unmap: 94 bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); 95 } 96 97 int 98 ahci_fdt_detach(struct device *self, int flags) 99 { 100 struct ahci_softc *sc = (struct ahci_softc *) self; 101 102 ahci_detach(sc, flags); 103 bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios); 104 return 0; 105 } 106 107 int 108 ahci_fdt_activate(struct device *self, int act) 109 { 110 struct ahci_softc *sc = (struct ahci_softc *) self; 111 112 return ahci_activate((struct device *)sc, act); 113 } 114