[c1205ee] | 1 | #include <machine/rtems-bsd-kernel-space.h> |
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| 2 | |
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| 3 | /*- |
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| 4 | * Copyright (c) 2015 Ian Lepore <ian@freebsd.org> |
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| 5 | * All rights reserved. |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions |
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| 9 | * are met: |
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| 10 | * 1. Redistributions of source code must retain the above copyright |
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| 11 | * notice, this list of conditions and the following disclaimer. |
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer in the |
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| 14 | * documentation and/or other materials provided with the distribution. |
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| 15 | * |
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 26 | * SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |
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| 29 | #include <sys/cdefs.h> |
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| 30 | __FBSDID("$FreeBSD$"); |
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| 31 | |
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| 32 | #include <sys/param.h> |
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| 33 | #include <sys/bus.h> |
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| 34 | |
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| 35 | #include <machine/bus.h> |
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| 36 | |
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| 37 | #include <dev/ofw/openfirm.h> |
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| 38 | #include <dev/ofw/ofw_subr.h> |
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| 39 | |
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| 40 | int |
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| 41 | OF_decode_addr(phandle_t dev, int regno, bus_space_tag_t *tag, |
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| 42 | bus_space_handle_t *handle, bus_size_t *sz) |
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| 43 | { |
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| 44 | bus_addr_t addr; |
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| 45 | bus_size_t size; |
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| 46 | int err; |
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| 47 | |
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| 48 | err = ofw_reg_to_paddr(dev, regno, &addr, &size, NULL); |
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| 49 | if (err != 0) |
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| 50 | return (err); |
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| 51 | |
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| 52 | *tag = 0; |
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| 53 | |
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| 54 | if (sz != NULL) |
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| 55 | *sz = size; |
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| 56 | |
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| 57 | return (bus_space_map(*tag, addr, size, 0, handle)); |
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| 58 | } |
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