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Add the start of the efi fdt bindings. These will be used on arm and arm64.

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Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Andrew Turner 2015-04-03 15:47:48 +00:00
parent 94d3e34255
commit 5d291f76e6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=281028
2 changed files with 99 additions and 0 deletions
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36
sys/boot/efi/fdt/Makefile Normal file
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# $FreeBSD$
.include <src.opts.mk>
.PATH: ${.CURDIR}/../../common
LIB= efi_fdt
INTERNALLIB=
SRCS= efi_fdt.c
CFLAGS+= -ffreestanding -msoft-float
.if ${MACHINE_CPUARCH} == "arm64"
CFLAGS+= -mgeneral-regs-only
.endif
CFLAGS+= -I${.CURDIR}/../../../../lib/libstand/
# EFI library headers
CFLAGS+= -I${.CURDIR}/../include
CFLAGS+= -I${.CURDIR}/../include/${MACHINE_CPUARCH}
# libfdt headers
CFLAGS+= -I${.CURDIR}/../../fdt
# Pick up the bootstrap header for some interface items
CFLAGS+= -I${.CURDIR}/../../common -I${.CURDIR}/../../.. -I.
machine:
ln -sf ${.CURDIR}/../../../${MACHINE_CPUARCH}/include machine
CLEANFILES+= machine
.include <bsd.lib.mk>
beforedepend ${OBJS}: machine

63
sys/boot/efi/fdt/efi_fdt.c Normal file
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/*-
* Copyright (c) 2014 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Andrew Turner 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <stand.h>
#include <efi.h>
#include <efilib.h>
#include <fdt_platform.h>
#include "bootstrap.h"
static EFI_GUID fdtdtb = FDT_TABLE_GUID;
int
fdt_platform_load_dtb(void)
{
struct fdt_header *hdr;
int err;
hdr = efi_get_table(&fdtdtb);
if (hdr != NULL) {
if (fdt_load_dtb_addr(hdr) == 0) {
printf("Using DTB provided by EFI at %p.\n", hdr);
return (0);
}
}
return (err);
}
void
fdt_platform_fixups(void)
{
}