1 /* $NetBSD: imx_snvs.c,v 1.2 2021/01/27 03:10:20 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2014 Ryo Shimizu <ryo@nerv.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * i.MX6 Secure Non-Volatile Storage 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: imx_snvs.c,v 1.2 2021/01/27 03:10:20 thorpej Exp $"); 35 36 #include <sys/bus.h> 37 #include <sys/device.h> 38 #include <sys/param.h> 39 40 #include <dev/fdt/fdtvar.h> 41 42 #include <arm/imx/imxsnvsvar.h> 43 44 static const struct device_compatible_entry compat_data[] = { 45 { .compat = "fsl,sec-v4.0-mon" }, 46 DEVICE_COMPAT_EOL 47 }; 48 49 int 50 imxsnvs_match(device_t parent, struct cfdata *match, void *aux) 51 { 52 struct fdt_attach_args * const faa = aux; 53 54 return of_compatible_match(faa->faa_phandle, compat_data); 55 } 56 57 void 58 imxsnvs_attach(device_t parent, device_t self, void *aux) 59 { 60 struct fdt_attach_args * const faa = aux; 61 const int phandle = faa->faa_phandle; 62 bus_addr_t addr; 63 bus_size_t size; 64 65 if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 66 aprint_error(": couldn't get registers\n"); 67 return; 68 } 69 70 imxsnvs_attach_common(parent, self, 71 faa->faa_bst, addr, size, 0, 0); 72 } 73 74