1 | /* |
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2 | * This routine is an implementation of the bsp_work_area_initialize() |
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3 | * that can be used by all BSPs following linkcmds conventions |
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4 | * regarding heap, stack, and workspace allocation. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-2008. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * Copyright (c) 2011-2012 embedded brains GmbH. |
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10 | * |
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11 | * The license and distribution terms for this file may be |
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12 | * found in the file LICENSE in this distribution or at |
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13 | * http://www.rtems.org/license/LICENSE. |
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14 | */ |
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15 | |
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16 | #include <bsp.h> |
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17 | #include <bsp/bootcard.h> |
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18 | #ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN |
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19 | #include <rtems/config.h> |
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20 | #endif |
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21 | |
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22 | #if defined(HAS_UBOOT) && !defined(BSP_DISABLE_UBOOT_WORK_AREA_CONFIG) |
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23 | #define USE_UBOOT |
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24 | #endif |
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25 | |
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26 | /* |
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27 | * These are provided by the linkcmds for ALL of the BSPs which use this file. |
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28 | */ |
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29 | extern char WorkAreaBase[]; |
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30 | |
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31 | /* |
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32 | * We may get the size information from U-Boot or the linker scripts. |
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33 | */ |
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34 | #ifdef USE_UBOOT |
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35 | #include <bsp/u-boot.h> |
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36 | #else |
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37 | extern char RamBase[]; |
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38 | extern char RamSize[]; |
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39 | #endif |
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40 | |
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41 | void bsp_work_area_initialize(void) |
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42 | { |
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43 | uintptr_t work_base = (uintptr_t) WorkAreaBase; |
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44 | uintptr_t ram_end; |
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45 | |
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46 | #ifdef USE_UBOOT |
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47 | ram_end = (uintptr_t) bsp_uboot_board_info.bi_memstart + |
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48 | bsp_uboot_board_info.bi_memsize; |
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49 | #else |
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50 | ram_end = (uintptr_t)RamBase + (uintptr_t)RamSize; |
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51 | #endif |
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52 | |
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53 | #ifdef BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN |
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54 | work_base += rtems_configuration_get_interrupt_stack_size(); |
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55 | #endif |
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56 | |
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57 | bsp_work_area_initialize_default( (void *) work_base, ram_end - work_base ); |
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58 | } |
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