1 /* $OpenBSD: ccp_fdt.c,v 1.1 2018/04/20 04:37:21 dlg Exp $ */ 2 /* 3 * Copyright (c) 2018 David Gwynne <dlg@openbsd.org> 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/types.h> 19 #include <sys/systm.h> 20 #include <sys/device.h> 21 #include <sys/malloc.h> 22 23 #include <machine/bus.h> 24 #include <machine/fdt.h> 25 26 #include <dev/ofw/openfirm.h> 27 #include <dev/ofw/ofw_misc.h> 28 #include <dev/ofw/ofw_regulator.h> 29 #include <dev/ofw/fdt.h> 30 31 #include <dev/ic/ccpvar.h> 32 33 static int ccp_fdt_match(struct device *, void *, void *); 34 static void ccp_fdt_attach(struct device *, struct device *, void *); 35 36 struct cfattach ccp_fdt_ca = { 37 sizeof(struct ccp_softc), 38 ccp_fdt_match, 39 ccp_fdt_attach 40 }; 41 42 static int 43 ccp_fdt_match(struct device *parent, void *match, void *aux) 44 { 45 struct fdt_attach_args *faa = aux; 46 47 return OF_is_compatible(faa->fa_node, "amd,ccp-seattle-v1a"); 48 } 49 50 static void 51 ccp_fdt_attach(struct device *parent, struct device *self, void *aux) 52 { 53 struct ccp_softc *sc = (struct ccp_softc *)self; 54 struct fdt_attach_args *faa = aux; 55 56 if (faa->fa_nreg < 1) { 57 printf(": no registers\n"); 58 return; 59 } 60 61 sc->sc_iot = faa->fa_iot; 62 63 if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, 64 faa->fa_reg[0].size, 0, &sc->sc_ioh)) { 65 printf(": cannot map registers\n"); 66 return; 67 } 68 69 ccp_attach(sc); 70 } 71