1 | /* SPDX-License-Identifier: BSD-2-Clause */ |
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2 | |
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3 | /* |
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4 | * Copyright (c) 2008-2013 embedded brains GmbH. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * 2. Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * |
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15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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16 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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19 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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25 | * POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |
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28 | #include <bsp.h> |
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29 | #include <bsp/u-boot.h> |
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30 | |
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31 | #include <libcpu/powerpc-utility.h> |
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32 | |
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33 | void bsp_restart(void *addr) |
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34 | { |
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35 | rtems_interrupt_level level; |
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36 | void (*start)(void) = addr; |
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37 | #ifdef HAS_UBOOT |
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38 | const void *mem_begin = (const void *) bsp_uboot_board_info.bi_memstart; |
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39 | size_t mem_size = bsp_uboot_board_info.bi_memsize; |
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40 | #else /* HAS_UBOOT */ |
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41 | const void *mem_begin = bsp_ram_start; |
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42 | size_t mem_size = (size_t) bsp_ram_size; |
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43 | #endif /* HAS_UBOOT */ |
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44 | uint32_t hid0; |
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45 | |
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46 | rtems_interrupt_disable(level); |
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47 | (void) level; /* avoid set but not used warning */ |
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48 | |
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49 | hid0 = PPC_SPECIAL_PURPOSE_REGISTER(HID0); |
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50 | |
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51 | if ((hid0 & HID0_DCE) != 0) { |
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52 | rtems_cache_flush_multiple_data_lines(mem_begin, mem_size); |
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53 | } |
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54 | |
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55 | hid0 &= ~(HID0_DCE | HID0_ICE); |
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56 | |
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57 | PPC_SET_SPECIAL_PURPOSE_REGISTER(HID0, hid0); |
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58 | |
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59 | (*start)(); |
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60 | } |
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