11.3Sthorpej/* $NetBSD: plrtc_fdt.c,v 1.3 2025/09/08 13:06:16 thorpej Exp $ */ 21.1Sjmcneill 31.1Sjmcneill/*- 41.1Sjmcneill * Copyright (c) 2017 Jared McNeill <jmcneill@invisible.ca> 51.1Sjmcneill * All rights reserved. 61.1Sjmcneill * 71.1Sjmcneill * Redistribution and use in source and binary forms, with or without 81.1Sjmcneill * modification, are permitted provided that the following conditions 91.1Sjmcneill * are met: 101.1Sjmcneill * 1. Redistributions of source code must retain the above copyright 111.1Sjmcneill * notice, this list of conditions and the following disclaimer. 121.1Sjmcneill * 2. Redistributions in binary form must reproduce the above copyright 131.1Sjmcneill * notice, this list of conditions and the following disclaimer in the 141.1Sjmcneill * documentation and/or other materials provided with the distribution. 151.1Sjmcneill * 161.1Sjmcneill * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 171.1Sjmcneill * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 181.1Sjmcneill * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 191.1Sjmcneill * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 201.1Sjmcneill * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 211.1Sjmcneill * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 221.1Sjmcneill * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 231.1Sjmcneill * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 241.1Sjmcneill * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 251.1Sjmcneill * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261.1Sjmcneill * SUCH DAMAGE. 271.1Sjmcneill */ 281.1Sjmcneill 291.1Sjmcneill#include <sys/cdefs.h> 301.3Sthorpej__KERNEL_RCSID(0, "$NetBSD: plrtc_fdt.c,v 1.3 2025/09/08 13:06:16 thorpej Exp $"); 311.1Sjmcneill 321.1Sjmcneill#include <sys/param.h> 331.1Sjmcneill#include <sys/bus.h> 341.1Sjmcneill#include <sys/device.h> 351.1Sjmcneill#include <sys/systm.h> 361.1Sjmcneill#include <sys/kernel.h> 371.1Sjmcneill 381.1Sjmcneill#include <dev/fdt/fdtvar.h> 391.1Sjmcneill 401.1Sjmcneill#include <dev/ic/pl031var.h> 411.1Sjmcneill 421.1Sjmcneillstatic int plrtc_fdt_match(device_t, cfdata_t, void *); 431.1Sjmcneillstatic void plrtc_fdt_attach(device_t, device_t, void *); 441.1Sjmcneill 451.2Sthorpejstatic const struct device_compatible_entry compat_data[] = { 461.2Sthorpej { .compat = "arm,pl031" }, 471.2Sthorpej DEVICE_COMPAT_EOL 481.1Sjmcneill}; 491.1Sjmcneill 501.1SjmcneillCFATTACH_DECL_NEW(plrtc_fdt, sizeof(struct plrtc_softc), 511.1Sjmcneill plrtc_fdt_match, plrtc_fdt_attach, NULL, NULL); 521.1Sjmcneill 531.1Sjmcneillstatic int 541.1Sjmcneillplrtc_fdt_match(device_t parent, cfdata_t cf, void *aux) 551.1Sjmcneill{ 561.1Sjmcneill struct fdt_attach_args * const faa = aux; 571.1Sjmcneill 581.2Sthorpej return of_compatible_match(faa->faa_phandle, compat_data); 591.1Sjmcneill} 601.1Sjmcneill 611.1Sjmcneillstatic void 621.1Sjmcneillplrtc_fdt_attach(device_t parent, device_t self, void *aux) 631.1Sjmcneill{ 641.1Sjmcneill struct plrtc_softc * const sc = device_private(self); 651.1Sjmcneill struct fdt_attach_args * const faa = aux; 661.1Sjmcneill const int phandle = faa->faa_phandle; 671.1Sjmcneill bus_addr_t addr; 681.1Sjmcneill bus_size_t size; 691.1Sjmcneill 701.1Sjmcneill if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 711.1Sjmcneill aprint_error(": missing 'reg' property\n"); 721.1Sjmcneill return; 731.1Sjmcneill } 741.1Sjmcneill 751.1Sjmcneill sc->sc_dev = self; 761.1Sjmcneill sc->sc_bst = faa->faa_bst; 771.1Sjmcneill if (bus_space_map(faa->faa_bst, addr, size, 0, &sc->sc_bsh)) { 781.1Sjmcneill aprint_error(": couldn't map device\n"); 791.1Sjmcneill return; 801.1Sjmcneill } 811.1Sjmcneill 821.1Sjmcneill plrtc_attach(sc); 831.1Sjmcneill} 84