[ac7d5ef0] | 1 | /* bsp_start() |
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| 2 | * |
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| 3 | * This routine starts the application. It includes application, |
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| 4 | * board, and monitor specific initialization and configuration. |
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| 5 | * The generic CPU dependent initialization has been performed |
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| 6 | * before this routine is invoked. |
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| 7 | * |
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| 8 | * INPUT: NONE |
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| 9 | * |
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| 10 | * OUTPUT: NONE |
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| 11 | * |
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[60b791ad] | 12 | * COPYRIGHT (c) 1989-1998. |
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[ac7d5ef0] | 13 | * On-Line Applications Research Corporation (OAR). |
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[03f2154e] | 14 | * Copyright assigned to U.S. Government, 1994. |
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[ac7d5ef0] | 15 | * |
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[98e4ebf5] | 16 | * The license and distribution terms for this file may be |
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| 17 | * found in the file LICENSE in this distribution or at |
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[03f2154e] | 18 | * http://www.OARcorp.com/rtems/license.html. |
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[ac7d5ef0] | 19 | * |
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| 20 | * $Id$ |
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| 21 | */ |
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| 22 | |
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[88d594a] | 23 | #include <bsp.h> |
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[3a4ae6c] | 24 | #include <rtems/libio.h> |
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| 25 | |
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[88d594a] | 26 | #include <libcsupport.h> |
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[3a4ae6c] | 27 | |
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| 28 | #include <string.h> |
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| 29 | |
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| 30 | #ifdef STACK_CHECKER_ON |
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| 31 | #include <stackchk.h> |
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| 32 | #endif |
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[ac7d5ef0] | 33 | |
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| 34 | unsigned char *duart_base; |
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| 35 | extern struct duart_regs duart_info; |
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| 36 | |
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| 37 | #define DELAY 5000 |
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| 38 | |
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| 39 | void led_putnum(); |
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| 40 | |
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| 41 | /* |
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| 42 | * The original table from the application and our copy of it with |
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| 43 | * some changes. |
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| 44 | */ |
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| 45 | |
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| 46 | extern rtems_configuration_table Configuration; |
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| 47 | rtems_configuration_table BSP_Configuration; |
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| 48 | |
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| 49 | rtems_cpu_table Cpu_table; |
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| 50 | |
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[3a4ae6c] | 51 | char *rtems_progname; |
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| 52 | |
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[ac7d5ef0] | 53 | /* Initialize whatever libc we are using |
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| 54 | * called from postdriver hook |
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| 55 | */ |
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| 56 | |
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| 57 | void bsp_libc_init() |
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| 58 | { |
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| 59 | extern int end; |
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| 60 | rtems_unsigned32 heap_start; |
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| 61 | |
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| 62 | heap_start = (rtems_unsigned32) &end; |
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| 63 | if (heap_start & (CPU_ALIGNMENT-1)) |
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| 64 | heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); |
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| 65 | |
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| 66 | /* Create 64 KByte memory region for RTEMS executive */ |
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| 67 | RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0); |
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[3a4ae6c] | 68 | |
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| 69 | /* |
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| 70 | * Init the RTEMS libio facility to provide UNIX-like system |
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[634e746] | 71 | * calls for use by newlib (ie: provide __rtems_open, __rtems_close, etc) |
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[3a4ae6c] | 72 | * Uses malloc() to get area for the iops, so must be after malloc init |
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| 73 | */ |
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| 74 | |
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| 75 | rtems_libio_init(); |
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[ac7d5ef0] | 76 | |
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| 77 | /* |
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| 78 | * Set up for the libc handling. |
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| 79 | */ |
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| 80 | |
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| 81 | if (BSP_Configuration.ticks_per_timeslice > 0) |
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| 82 | libc_init(1); /* reentrant if possible */ |
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| 83 | else |
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| 84 | libc_init(0); /* non-reentrant */ |
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[3652ad35] | 85 | } |
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| 86 | |
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| 87 | /* |
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| 88 | * Function: bsp_pretasking_hook |
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| 89 | * Created: 95/03/10 |
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| 90 | * |
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| 91 | * Description: |
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| 92 | * BSP pretasking hook. Called just before drivers are initialized. |
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| 93 | * Used to setup libc and install any BSP extensions. |
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| 94 | * |
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| 95 | * NOTES: |
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| 96 | * Must not use libc (to do io) from here, since drivers are |
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| 97 | * not yet initialized. |
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| 98 | * |
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| 99 | */ |
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| 100 | |
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| 101 | void |
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| 102 | bsp_pretasking_hook(void) |
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| 103 | { |
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| 104 | bsp_libc_init(); |
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[ac7d5ef0] | 105 | |
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[3652ad35] | 106 | #ifdef STACK_CHECKER_ON |
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[ac7d5ef0] | 107 | /* |
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| 108 | * Initialize the stack bounds checker |
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[3652ad35] | 109 | * We can either turn it on here or from the app. |
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[ac7d5ef0] | 110 | */ |
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| 111 | |
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| 112 | Stack_check_Initialize(); |
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| 113 | #endif |
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[3652ad35] | 114 | |
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| 115 | #ifdef RTEMS_DEBUG |
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| 116 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
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| 117 | #endif |
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[ac7d5ef0] | 118 | } |
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| 119 | |
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| 120 | |
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[3a4ae6c] | 121 | /* |
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[8f95b5f] | 122 | * Use the shared bsp_postdriver_hook() implementation |
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[3a4ae6c] | 123 | */ |
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| 124 | |
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[8f95b5f] | 125 | void bsp_postdriver_hook(void); |
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[3a4ae6c] | 126 | |
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[e2a2ec60] | 127 | void bsp_start( void ) |
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[ac7d5ef0] | 128 | { |
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[497428a2] | 129 | m68k_isr_entry *monitors_vector_table; |
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| 130 | int index; |
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[ac7d5ef0] | 131 | |
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| 132 | duart_base = (unsigned char *)DUART_ADDR; |
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| 133 | |
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| 134 | /* |
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| 135 | * Set the VBR here to the monitor's default. |
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| 136 | */ |
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| 137 | |
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[497428a2] | 138 | monitors_vector_table = (m68k_isr_entry *)0; |
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| 139 | /* This is where you set vector base register = 0 */ |
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[ac7d5ef0] | 140 | m68k_set_vbr( monitors_vector_table ); |
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| 141 | |
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| 142 | /* The vector interrupt table for the 680x0 is in appendix B-2 |
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| 143 | of the M68000 Family Programmer's reference table */ |
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| 144 | for ( index=2 ; index<=255 ; index++ ) |
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| 145 | M68Kvec[ index ] = monitors_vector_table[ 32 ]; |
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| 146 | |
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| 147 | |
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| 148 | M68Kvec[ 2 ] = monitors_vector_table[ 2 ]; /* bus error vector */ |
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| 149 | M68Kvec[ 4 ] = monitors_vector_table[ 4 ]; /* breakpoints vector */ |
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| 150 | M68Kvec[ 9 ] = monitors_vector_table[ 9 ]; /* trace vector */ |
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| 151 | |
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| 152 | /* |
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| 153 | * Set the VBR here if you do not want to use the monitor's vector table. |
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| 154 | */ |
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| 155 | |
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| 156 | m68k_set_vbr( &M68Kvec ); |
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| 157 | |
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| 158 | m68k_enable_caching(); |
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| 159 | |
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| 160 | /* |
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| 161 | * we only use a hook to get the C library initialized. |
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| 162 | */ |
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| 163 | |
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[3652ad35] | 164 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
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| 165 | |
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| 166 | Cpu_table.predriver_hook = NULL; |
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| 167 | |
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[3a4ae6c] | 168 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
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[3652ad35] | 169 | |
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[ac7d5ef0] | 170 | Cpu_table.idle_task = NULL; /* do not override system IDLE task */ |
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| 171 | |
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| 172 | Cpu_table.do_zero_of_workspace = TRUE; |
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| 173 | |
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[497428a2] | 174 | Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec; |
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[ac7d5ef0] | 175 | |
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| 176 | Cpu_table.interrupt_stack_size = 4096; |
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| 177 | |
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[8cbbe312] | 178 | Cpu_table.extra_mpci_receive_server_stack = 0; |
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[ac7d5ef0] | 179 | |
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| 180 | /* |
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| 181 | * Copy the table |
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| 182 | */ |
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| 183 | |
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| 184 | BSP_Configuration = Configuration; |
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| 185 | |
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| 186 | BSP_Configuration.work_space_start = (void *) |
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| 187 | (RAM_END - BSP_Configuration.work_space_size); |
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| 188 | |
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| 189 | /* |
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| 190 | * Add 1 region for the RTEMS Malloc |
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| 191 | */ |
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| 192 | |
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[e6d4b1d] | 193 | BSP_Configuration.RTEMS_api_configuration->maximum_regions++; |
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[ac7d5ef0] | 194 | |
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| 195 | /* |
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| 196 | * Add 1 extension for newlib libc |
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| 197 | */ |
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| 198 | |
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| 199 | #ifdef RTEMS_NEWLIB |
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| 200 | BSP_Configuration.maximum_extensions++; |
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| 201 | #endif |
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| 202 | |
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| 203 | /* |
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| 204 | * Add another extension if using the stack checker |
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| 205 | */ |
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| 206 | |
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| 207 | #ifdef STACK_CHECKER_ON |
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| 208 | BSP_Configuration.maximum_extensions++; |
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| 209 | #endif |
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| 210 | |
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[3a4ae6c] | 211 | /* |
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| 212 | * Tell libio how many fd's we want and allow it to tweak config |
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| 213 | */ |
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| 214 | |
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| 215 | rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS); |
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| 216 | |
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[ac7d5ef0] | 217 | /* led_putnum('e'); * for debugging purposes only */ |
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| 218 | |
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[e2a2ec60] | 219 | /* Clock_exit is done as an atexit() function */ |
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[ac7d5ef0] | 220 | } |
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