[61ba9763] | 1 | /* |
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| 2 | * This set of routines 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 any of these are 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.OARcorp.com/rtems/license.html. |
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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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[eba2e4f] | 17 | #include <string.h> |
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| 18 | |
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[61ba9763] | 19 | #include <bsp.h> |
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| 20 | #include <rtems/libio.h> |
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[eba2e4f] | 21 | #include <rtems/libcsupport.h> |
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[61ba9763] | 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 | rtems_configuration_table BSP_Configuration; |
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| 30 | |
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| 31 | rtems_cpu_table Cpu_table; |
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| 32 | |
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| 33 | /* |
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| 34 | * Use the shared implementations of the following routines |
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| 35 | */ |
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| 36 | |
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| 37 | void bsp_postdriver_hook(void); |
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| 38 | void bsp_libc_init( void *, unsigned32, int ); |
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| 39 | extern void bsp_spurious_initialize(); |
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| 40 | |
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| 41 | /* |
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| 42 | * bsp_pretasking_hook |
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| 43 | * |
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| 44 | * BSP pretasking hook. Called just before drivers are initialized. |
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| 45 | * Used to setup libc and install any BSP extensions. |
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| 46 | */ |
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| 47 | |
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| 48 | void bsp_pretasking_hook(void) |
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| 49 | { |
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| 50 | extern void *_HeapStart; |
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| 51 | extern rtems_unsigned32 _HeapSize; |
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| 52 | |
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| 53 | bsp_libc_init(&_HeapStart, (unsigned int) &_HeapSize, 0); |
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| 54 | |
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| 55 | #ifdef RTEMS_DEBUG |
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| 56 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
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| 57 | #endif |
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| 58 | |
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| 59 | bsp_spurious_initialize(); |
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| 60 | } |
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| 61 | |
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| 62 | /* |
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| 63 | * bsp_start |
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| 64 | * |
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| 65 | * This routine does the bulk of the system initialization. |
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| 66 | */ |
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| 67 | |
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[ed612fa] | 68 | #include <rtems/bspIo.h> |
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[61ba9763] | 69 | |
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| 70 | BSP_output_char_function_type BSP_output_char; |
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| 71 | BSP_polling_getchar_function_type BSP_poll_char; |
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| 72 | extern void C4X_BSP_output_char(char c); |
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| 73 | |
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| 74 | void bsp_start( void ) |
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| 75 | { |
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| 76 | extern void *_WorkspaceBase; |
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| 77 | extern rtems_unsigned32 _WorkspaceMax; |
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| 78 | /* |
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| 79 | * Set up our hooks |
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| 80 | * Make sure libc_init is done before drivers initialized so that |
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| 81 | * they can use atexit() |
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| 82 | */ |
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| 83 | |
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| 84 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
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| 85 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
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| 86 | |
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| 87 | /* |
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| 88 | * SIS does zero out memory BUT only when IT begins execution. Thus |
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| 89 | * if we want to have a clean slate in the workspace each time we |
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| 90 | * begin execution of OUR application, then we must zero the workspace. |
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| 91 | */ |
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| 92 | Cpu_table.do_zero_of_workspace = FALSE; |
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| 93 | |
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| 94 | /* |
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| 95 | * This should be enough interrupt stack. |
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| 96 | */ |
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| 97 | |
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| 98 | Cpu_table.interrupt_stack_size = 0; |
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| 99 | |
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| 100 | BSP_Configuration.work_space_start = (void *)&_WorkspaceBase; |
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| 101 | /* XXX check to see if satisfying small memory model */ |
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| 102 | |
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| 103 | if ( BSP_Configuration.work_space_size > (int) &_WorkspaceMax ) |
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| 104 | rtems_fatal_error_occurred( 0x43218765 ); |
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| 105 | |
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| 106 | BSP_output_char = C4X_BSP_output_char; |
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| 107 | BSP_poll_char = (BSP_polling_getchar_function_type) NULL; |
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| 108 | } |
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