1 | /* |
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2 | * This routine starts the application. It includes application, |
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3 | * board, and monitor specific initialization and configuration. |
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4 | * The generic CPU dependent initialization has been performed |
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5 | * before this routine is invoked. |
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6 | * |
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7 | * COPYRIGHT (c) 1989-1999. |
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8 | * On-Line Applications Research Corporation (OAR). |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.com/license/LICENSE. |
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13 | * |
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14 | * $Id$ |
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15 | */ |
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16 | |
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17 | #include <string.h> |
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18 | |
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19 | #include <bsp.h> |
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20 | #include <rtems/libio.h> |
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21 | #include <rtems/libcsupport.h> |
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22 | |
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23 | /* |
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24 | * Use the shared implementations of the following routines |
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25 | */ |
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26 | |
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27 | void bsp_libc_init( void *, uint32_t, int ); |
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28 | void bsp_pretasking_hook(void); /* m68k version */ |
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29 | |
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30 | /* |
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31 | * bsp_start |
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32 | * |
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33 | * This routine does the bulk of the system initialization. |
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34 | */ |
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35 | |
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36 | void bsp_start( void ) |
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37 | { |
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38 | extern void *_WorkspaceBase; |
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39 | extern void *_RamSize; |
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40 | extern void *_RamSize; |
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41 | extern unsigned long _M68k_Ramsize; |
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42 | |
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43 | /* RAM size set in linker script */ |
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44 | _M68k_Ramsize = (unsigned long)&_RamSize; |
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45 | |
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46 | /* |
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47 | * Allocate the memory for the RTEMS Work Space. This can come from |
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48 | * a variety of places: hard coded address, malloc'ed from outside |
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49 | * RTEMS world (e.g. simulator or primitive memory manager), or (as |
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50 | * typically done by stock BSPs) by subtracting the required amount |
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51 | * of work space from the last physical address on the CPU board. |
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52 | */ |
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53 | |
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54 | /* |
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55 | * Need to "allocate" the memory for the RTEMS Workspace and |
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56 | * tell the RTEMS configuration where it is. This memory is |
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57 | * not malloc'ed. It is just "pulled from the air". |
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58 | */ |
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59 | |
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60 | Configuration.work_space_start = (void *) &_WorkspaceBase; |
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61 | } |
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