1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009-2010 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Semihalf under sponsorship from 8 * the FreeBSD Foundation. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _FDT_COMMON_H_ 35 #define _FDT_COMMON_H_ 36 37 #include <sys/sysctl.h> 38 #include <sys/slicer.h> 39 #include <contrib/libfdt/libfdt_env.h> 40 #include <dev/ofw/ofw_bus.h> 41 42 #define FDT_MEM_REGIONS 8 43 44 #define DI_MAX_INTR_NUM 32 45 46 struct fdt_sense_level { 47 enum intr_trigger trig; 48 enum intr_polarity pol; 49 }; 50 51 #if defined(__arm__) && !defined(INTRNG) 52 typedef int (*fdt_pic_decode_t)(phandle_t, pcell_t *, int *, int *, int *); 53 extern fdt_pic_decode_t fdt_pic_table[]; 54 #endif 55 56 #if defined(__arm__) || defined(__powerpc__) 57 typedef void (*fdt_fixup_t)(phandle_t); 58 struct fdt_fixup_entry { 59 char *model; 60 fdt_fixup_t handler; 61 }; 62 extern struct fdt_fixup_entry fdt_fixup_table[]; 63 #endif 64 65 extern SLIST_HEAD(fdt_ic_list, fdt_ic) fdt_ic_list_head; 66 struct fdt_ic { 67 SLIST_ENTRY(fdt_ic) fdt_ics; 68 ihandle_t iph; 69 device_t dev; 70 }; 71 72 extern vm_paddr_t fdt_immr_pa; 73 extern vm_offset_t fdt_immr_va; 74 extern vm_offset_t fdt_immr_size; 75 76 #if defined(FDT_DTB_STATIC) 77 extern u_char fdt_static_dtb; 78 #endif 79 80 SYSCTL_DECL(_hw_fdt); 81 82 int fdt_addrsize_cells(phandle_t, int *, int *); 83 u_long fdt_data_get(void *, int); 84 int fdt_data_to_res(pcell_t *, int, int, u_long *, u_long *); 85 phandle_t fdt_find_compatible(phandle_t, const char *, int); 86 phandle_t fdt_depth_search_compatible(phandle_t, const char *, int); 87 int fdt_get_mem_regions(struct mem_region *, int *, uint64_t *); 88 int fdt_get_reserved_regions(struct mem_region *, int *); 89 int fdt_get_phyaddr(phandle_t, device_t, int *, void **); 90 int fdt_get_range(phandle_t, int, u_long *, u_long *); 91 int fdt_immr_addr(vm_offset_t); 92 int fdt_regsize(phandle_t, u_long *, u_long *); 93 int fdt_is_compatible_strict(phandle_t, const char *); 94 int fdt_parent_addr_cells(phandle_t); 95 int fdt_get_chosen_bootargs(char *bootargs, size_t max_size); 96 97 #endif /* _FDT_COMMON_H_ */ 98