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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-02 16:29:11 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-03-08 09:04:18 +0100 |
commit | c1205ee81e0a3c78ef687fa7c58639d5b7d04784 (patch) | |
tree | 2b9affd38109db8a403f992fe6d4c41793d8e64d /rtemsbsd/rtems/ofw_machdep.c | |
parent | FDT(4): Import from FreeBSD (diff) | |
download | rtems-libbsd-c1205ee81e0a3c78ef687fa7c58639d5b7d04784.tar.bz2 |
FDT(4): Port to RTEMS
Diffstat (limited to 'rtemsbsd/rtems/ofw_machdep.c')
-rw-r--r-- | rtemsbsd/rtems/ofw_machdep.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/rtemsbsd/rtems/ofw_machdep.c b/rtemsbsd/rtems/ofw_machdep.c new file mode 100644 index 00000000..dce849dd --- /dev/null +++ b/rtemsbsd/rtems/ofw_machdep.c @@ -0,0 +1,58 @@ +#include <machine/rtems-bsd-kernel-space.h> + +/*- + * Copyright (c) 2015 Ian Lepore <ian@freebsd.org> + * All rights reserved. + * + * 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 <sys/bus.h> + +#include <machine/bus.h> + +#include <dev/ofw/openfirm.h> +#include <dev/ofw/ofw_subr.h> + +int +OF_decode_addr(phandle_t dev, int regno, bus_space_tag_t *tag, + bus_space_handle_t *handle, bus_size_t *sz) +{ + bus_addr_t addr; + bus_size_t size; + int err; + + err = ofw_reg_to_paddr(dev, regno, &addr, &size, NULL); + if (err != 0) + return (err); + + *tag = 0; + + if (sz != NULL) + *sz = size; + + return (bus_space_map(*tag, addr, size, 0, handle)); +} |