freebsd-skq/sys/dev/fdt/fdt_common.h
andrew e5233b5373 Increase the number of fdt memory regions we support to 16. Some SoCs have
many excluded regions causing a buffer overflow in the early boot code if
this value is too small.

Obtained from:	ABT Systems Ltd
Sponsored by:	Turing Robotic Industries
2018-05-29 17:44:40 +00:00

99 lines
3.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009-2010 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Semihalf under sponsorship from
* the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _FDT_COMMON_H_
#define _FDT_COMMON_H_
#include <sys/sysctl.h>
#include <sys/slicer.h>
#include <contrib/libfdt/libfdt_env.h>
#include <dev/ofw/ofw_bus.h>
#define FDT_MEM_REGIONS 16
#define DI_MAX_INTR_NUM 32
struct fdt_sense_level {
enum intr_trigger trig;
enum intr_polarity pol;
};
#if defined(__arm__) && !defined(INTRNG)
typedef int (*fdt_pic_decode_t)(phandle_t, pcell_t *, int *, int *, int *);
extern fdt_pic_decode_t fdt_pic_table[];
#endif
#if defined(__arm__) || defined(__powerpc__)
typedef void (*fdt_fixup_t)(phandle_t);
struct fdt_fixup_entry {
char *model;
fdt_fixup_t handler;
};
extern struct fdt_fixup_entry fdt_fixup_table[];
#endif
extern SLIST_HEAD(fdt_ic_list, fdt_ic) fdt_ic_list_head;
struct fdt_ic {
SLIST_ENTRY(fdt_ic) fdt_ics;
ihandle_t iph;
device_t dev;
};
extern vm_paddr_t fdt_immr_pa;
extern vm_offset_t fdt_immr_va;
extern vm_offset_t fdt_immr_size;
#if defined(FDT_DTB_STATIC)
extern u_char fdt_static_dtb;
#endif
SYSCTL_DECL(_hw_fdt);
int fdt_addrsize_cells(phandle_t, int *, int *);
u_long fdt_data_get(void *, int);
int fdt_data_to_res(pcell_t *, int, int, u_long *, u_long *);
phandle_t fdt_find_compatible(phandle_t, const char *, int);
phandle_t fdt_depth_search_compatible(phandle_t, const char *, int);
int fdt_get_mem_regions(struct mem_region *, int *, uint64_t *);
int fdt_get_reserved_mem(struct mem_region *, int *);
int fdt_get_reserved_regions(struct mem_region *, int *);
int fdt_get_phyaddr(phandle_t, device_t, int *, void **);
int fdt_get_range(phandle_t, int, u_long *, u_long *);
int fdt_immr_addr(vm_offset_t);
int fdt_regsize(phandle_t, u_long *, u_long *);
int fdt_is_compatible_strict(phandle_t, const char *);
int fdt_parent_addr_cells(phandle_t);
int fdt_get_chosen_bootargs(char *bootargs, size_t max_size);
#endif /* _FDT_COMMON_H_ */