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) 1989-2000. |
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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 | * The original table from the application and our copy of it with |
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25 | * some changes. |
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26 | */ |
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27 | |
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28 | extern rtems_configuration_table Configuration; |
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29 | |
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30 | rtems_configuration_table BSP_Configuration; |
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31 | |
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32 | rtems_cpu_table Cpu_table; |
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33 | |
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34 | char *rtems_progname; |
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35 | |
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36 | /* |
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37 | * Use the shared implementations of the following routines |
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38 | */ |
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39 | |
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40 | void bsp_postdriver_hook(void); |
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41 | void bsp_libc_init( void *, uint32_t, int ); |
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42 | |
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43 | /* |
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44 | * Function: bsp_pretasking_hook |
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45 | * Created: 95/03/10 |
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46 | * |
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47 | * Description: |
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48 | * BSP pretasking hook. Called just before drivers are initialized. |
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49 | * Used to setup libc and install any BSP extensions. |
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50 | * |
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51 | * NOTES: |
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52 | * Must not use libc (to do io) from here, since drivers are |
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53 | * not yet initialized. |
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54 | * |
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55 | */ |
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56 | |
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57 | void bsp_pretasking_hook(void) |
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58 | { |
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59 | extern int HeapBase; |
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60 | extern int HeapSize; |
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61 | void *heapStart = &HeapBase; |
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62 | unsigned long heapSize = (unsigned long)&HeapSize; |
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63 | |
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64 | bsp_libc_init(heapStart, (uint32_t) heapSize, 0); |
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65 | |
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66 | #ifdef RTEMS_DEBUG |
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67 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
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68 | #endif |
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69 | |
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70 | } |
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71 | |
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72 | /* |
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73 | * bsp_start |
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74 | * |
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75 | * This routine does the bulk of the system initialization. |
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76 | */ |
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77 | |
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78 | void bsp_start( void ) |
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79 | { |
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80 | extern int WorkspaceBase; |
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81 | extern void _sys_exit(int); |
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82 | extern void mips_install_isr_entries(void); |
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83 | |
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84 | /* Configure Number of Register Caches */ |
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85 | |
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86 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
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87 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
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88 | Cpu_table.interrupt_stack_size = 4096; |
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89 | |
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90 | /* HACK -- tied to value linkcmds */ |
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91 | if ( BSP_Configuration.work_space_size >(4096*1024) ) |
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92 | _sys_exit( 1 ); |
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93 | |
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94 | BSP_Configuration.work_space_start = (void *) &WorkspaceBase; |
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95 | |
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96 | mips_set_sr( 0xff00 ); /* all interrupts unmasked but globally off */ |
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97 | /* depend on the IRC to take care of things */ |
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98 | mips_install_isr_entries(); |
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99 | } |
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100 | |
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101 | /* XXX */ |
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102 | void clear_cache( void *address, size_t n ) |
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103 | { |
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104 | } |
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105 | |
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106 | /* Structure filled in by get_mem_info. Only the size field is |
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107 | actually used (to clear bss), so the others aren't even filled in. */ |
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108 | |
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109 | struct s_mem |
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110 | { |
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111 | unsigned int size; |
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112 | unsigned int icsize; |
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113 | unsigned int dcsize; |
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114 | }; |
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115 | |
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116 | |
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117 | void |
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118 | get_mem_info (mem) |
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119 | struct s_mem *mem; |
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120 | { |
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121 | mem->size = 0x1000000; /* XXX figure out something here */ |
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122 | } |
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123 | |
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