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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