1 /* $NetBSD: zynq_cemac.c,v 1.4 2022/10/26 11:31:11 jmcneill Exp $ */ 2 /*- 3 * Copyright (c) 2015 Genetec Corporation. All rights reserved. 4 * Written by Hashimoto Kenichi for Genetec Corporation. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: zynq_cemac.c,v 1.4 2022/10/26 11:31:11 jmcneill Exp $"); 30 31 #include "opt_soc.h" 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/conf.h> 36 #include <sys/device.h> 37 #include <sys/kernel.h> 38 #include <sys/intr.h> 39 #include <sys/systm.h> 40 41 #include <dev/cadence/cemacreg.h> 42 #include <dev/cadence/if_cemacvar.h> 43 44 #include <net/if_ether.h> 45 46 #include <dev/fdt/fdtvar.h> 47 48 static const struct device_compatible_entry compat_data[] = { 49 { .compat = "cdns,zynq-gem" }, 50 DEVICE_COMPAT_EOL 51 }; 52 53 int 54 cemac_match(device_t parent, cfdata_t cfdata, void *aux) 55 { 56 struct fdt_attach_args * const faa = aux; 57 58 return of_compatible_match(faa->faa_phandle, compat_data); 59 } 60 61 void 62 cemac_attach(device_t parent, device_t self, void *aux) 63 { 64 struct fdt_attach_args * const faa = aux; 65 const int phandle = faa->faa_phandle; 66 prop_dictionary_t prop = device_properties(self); 67 bus_space_handle_t ioh; 68 char intrstr[128]; 69 const char *macaddr; 70 bus_addr_t addr; 71 bus_size_t size; 72 int error, len; 73 74 if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 75 aprint_error(": couldn't get registers\n"); 76 return; 77 } 78 79 error = bus_space_map(faa->faa_bst, addr, size, 0, &ioh); 80 if (error) { 81 aprint_error(": failed to map register %#lx@%#lx: %d\n", 82 size, addr, error); 83 return; 84 } 85 86 if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 87 aprint_error(": failed to decode interrupt\n"); 88 return; 89 } 90 91 if (fdtbus_intr_establish(phandle, 0, IPL_NET, 0, cemac_intr, 92 device_private(self)) == NULL) { 93 aprint_error(": failed to establish interrupt on %s\n", intrstr); 94 return; 95 } 96 97 macaddr = fdtbus_get_prop(phandle, "local-mac-address", &len); 98 if (macaddr != NULL && len == ETHER_ADDR_LEN) { 99 prop_dictionary_set_data(prop, "mac-address", macaddr, len); 100 } 101 102 cemac_attach_common(self, faa->faa_bst, ioh, faa->faa_dmat, CEMAC_FLAG_GEM); 103 aprint_normal_dev(self, "interrupting on %s\n", intrstr); 104 } 105 106