5
Last change
on this file since 8f8ccee was
9964895,
checked in by Sebastian Huber <sebastian.huber@…>, on 04/20/18 at 08:35:35
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bsps: Move startup files to bsps
Adjust build support files to new directory layout.
This patch is a part of the BSP source reorganization.
Update #3285.
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-
Property mode set to
100644
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File size:
1.2 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup QorIQ |
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5 | * |
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6 | * @brief BSP reset. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * Copyright (c) 2010, 2017 embedded brains GmbH. All rights reserved. |
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11 | * |
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12 | * embedded brains GmbH |
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13 | * Dornierstr. 4 |
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14 | * 82178 Puchheim |
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15 | * Germany |
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16 | * <rtems@embedded-brains.de> |
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17 | * |
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18 | * The license and distribution terms for this file may be |
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19 | * found in the file LICENSE in this distribution or at |
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20 | * http://www.rtems.org/license/LICENSE. |
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21 | */ |
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22 | |
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23 | #include <bsp/bootcard.h> |
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24 | #include <bsp/fdt.h> |
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25 | #include <bsp/qoriq.h> |
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26 | |
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27 | #include <libfdt.h> |
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28 | |
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29 | static int find_rstcr_node(const void *fdt, int node) |
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30 | { |
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31 | return fdt_node_offset_by_prop_value(fdt, node, "fsl,has-rstcr", NULL, 0); |
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32 | } |
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33 | |
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34 | void bsp_reset(void) |
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35 | { |
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36 | rtems_interrupt_level level; |
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37 | const char *fdt; |
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38 | |
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39 | rtems_interrupt_local_disable(level); |
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40 | (void) level; |
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41 | |
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42 | fdt = bsp_fdt_get(); |
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43 | |
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44 | /* If we do not find a RSTCR, then loop forever */ |
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45 | while (true) { |
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46 | int node; |
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47 | |
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48 | node = -1; |
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49 | |
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50 | while ((node = find_rstcr_node(fdt, node)) >= 0) { |
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51 | const uint32_t *reg; |
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52 | int len; |
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53 | |
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54 | reg = fdt_getprop(fdt, node, "reg", &len); |
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55 | if (reg != NULL && len >= 4) { |
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56 | volatile uint32_t *rstcr; |
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57 | |
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58 | rstcr = (volatile uint32_t *) |
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59 | ((uintptr_t) &qoriq + fdt32_to_cpu(reg[0]) + 0xb0); |
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60 | *rstcr = 0x2; |
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61 | } |
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62 | } |
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63 | } |
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64 | } |
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