[ac7d5ef0] | 1 | /* bsp_start() |
---|
| 2 | * |
---|
| 3 | * This routine starts the application. It includes application, |
---|
| 4 | * board, and monitor specific initialization and configuration. |
---|
| 5 | * The generic CPU dependent initialization has been performed |
---|
| 6 | * before this routine is invoked. |
---|
| 7 | * |
---|
| 8 | * INPUT: NONE |
---|
| 9 | * |
---|
| 10 | * OUTPUT: NONE |
---|
| 11 | * |
---|
| 12 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
---|
| 13 | * On-Line Applications Research Corporation (OAR). |
---|
| 14 | * All rights assigned to U.S. Government, 1994. |
---|
| 15 | * |
---|
| 16 | * This material may be reproduced by or for the U.S. Government pursuant |
---|
| 17 | * to the copyright license under the clause at DFARS 252.227-7013. This |
---|
| 18 | * notice must appear in all copies of this file and its derivatives. |
---|
| 19 | * |
---|
| 20 | * $Id$ |
---|
| 21 | */ |
---|
| 22 | |
---|
[88d594a] | 23 | #include <bsp.h> |
---|
[3a4ae6c] | 24 | #include <rtems/libio.h> |
---|
| 25 | |
---|
[88d594a] | 26 | #include <libcsupport.h> |
---|
[3a4ae6c] | 27 | |
---|
| 28 | #include <string.h> |
---|
| 29 | #include <fcntl.h> |
---|
| 30 | |
---|
| 31 | #ifdef STACK_CHECKER_ON |
---|
| 32 | #include <stackchk.h> |
---|
| 33 | #endif |
---|
[ac7d5ef0] | 34 | |
---|
| 35 | unsigned char *duart_base; |
---|
| 36 | extern struct duart_regs duart_info; |
---|
| 37 | |
---|
| 38 | #define DELAY 5000 |
---|
| 39 | |
---|
| 40 | void led_putnum(); |
---|
| 41 | |
---|
| 42 | /* |
---|
| 43 | * The original table from the application and our copy of it with |
---|
| 44 | * some changes. |
---|
| 45 | */ |
---|
| 46 | |
---|
| 47 | extern rtems_configuration_table Configuration; |
---|
| 48 | rtems_configuration_table BSP_Configuration; |
---|
| 49 | |
---|
| 50 | rtems_cpu_table Cpu_table; |
---|
| 51 | |
---|
[3a4ae6c] | 52 | char *rtems_progname; |
---|
| 53 | |
---|
[ac7d5ef0] | 54 | /* Initialize whatever libc we are using |
---|
| 55 | * called from postdriver hook |
---|
| 56 | */ |
---|
| 57 | |
---|
| 58 | void bsp_libc_init() |
---|
| 59 | { |
---|
| 60 | extern int end; |
---|
| 61 | rtems_unsigned32 heap_start; |
---|
| 62 | |
---|
| 63 | heap_start = (rtems_unsigned32) &end; |
---|
| 64 | if (heap_start & (CPU_ALIGNMENT-1)) |
---|
| 65 | heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); |
---|
| 66 | |
---|
| 67 | /* Create 64 KByte memory region for RTEMS executive */ |
---|
| 68 | RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0); |
---|
[3a4ae6c] | 69 | |
---|
| 70 | /* |
---|
| 71 | * Init the RTEMS libio facility to provide UNIX-like system |
---|
[634e746] | 72 | * calls for use by newlib (ie: provide __rtems_open, __rtems_close, etc) |
---|
[3a4ae6c] | 73 | * Uses malloc() to get area for the iops, so must be after malloc init |
---|
| 74 | */ |
---|
| 75 | |
---|
| 76 | rtems_libio_init(); |
---|
[ac7d5ef0] | 77 | |
---|
| 78 | /* |
---|
| 79 | * Set up for the libc handling. |
---|
| 80 | */ |
---|
| 81 | |
---|
| 82 | if (BSP_Configuration.ticks_per_timeslice > 0) |
---|
| 83 | libc_init(1); /* reentrant if possible */ |
---|
| 84 | else |
---|
| 85 | libc_init(0); /* non-reentrant */ |
---|
[3652ad35] | 86 | } |
---|
| 87 | |
---|
| 88 | /* |
---|
| 89 | * Function: bsp_pretasking_hook |
---|
| 90 | * Created: 95/03/10 |
---|
| 91 | * |
---|
| 92 | * Description: |
---|
| 93 | * BSP pretasking hook. Called just before drivers are initialized. |
---|
| 94 | * Used to setup libc and install any BSP extensions. |
---|
| 95 | * |
---|
| 96 | * NOTES: |
---|
| 97 | * Must not use libc (to do io) from here, since drivers are |
---|
| 98 | * not yet initialized. |
---|
| 99 | * |
---|
| 100 | */ |
---|
| 101 | |
---|
| 102 | void |
---|
| 103 | bsp_pretasking_hook(void) |
---|
| 104 | { |
---|
| 105 | bsp_libc_init(); |
---|
[ac7d5ef0] | 106 | |
---|
[3652ad35] | 107 | #ifdef STACK_CHECKER_ON |
---|
[ac7d5ef0] | 108 | /* |
---|
| 109 | * Initialize the stack bounds checker |
---|
[3652ad35] | 110 | * We can either turn it on here or from the app. |
---|
[ac7d5ef0] | 111 | */ |
---|
| 112 | |
---|
| 113 | Stack_check_Initialize(); |
---|
| 114 | #endif |
---|
[3652ad35] | 115 | |
---|
| 116 | #ifdef RTEMS_DEBUG |
---|
| 117 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
---|
| 118 | #endif |
---|
[ac7d5ef0] | 119 | } |
---|
| 120 | |
---|
| 121 | |
---|
[3a4ae6c] | 122 | /* |
---|
| 123 | * After drivers are setup, register some "filenames" |
---|
| 124 | * and open stdin, stdout, stderr files |
---|
| 125 | * |
---|
| 126 | * Newlib will automatically associate the files with these |
---|
| 127 | * (it hardcodes the numbers) |
---|
| 128 | */ |
---|
| 129 | |
---|
| 130 | void |
---|
| 131 | bsp_postdriver_hook(void) |
---|
| 132 | { |
---|
| 133 | int stdin_fd, stdout_fd, stderr_fd; |
---|
[9700578] | 134 | int error_code; |
---|
| 135 | |
---|
| 136 | error_code = 'S' << 24 | 'T' << 16; |
---|
[3a4ae6c] | 137 | |
---|
[634e746] | 138 | if ((stdin_fd = __rtems_open("/dev/console", O_RDONLY, 0)) == -1) |
---|
[9700578] | 139 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' ); |
---|
[3a4ae6c] | 140 | |
---|
[634e746] | 141 | if ((stdout_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) |
---|
[9700578] | 142 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' ); |
---|
[3a4ae6c] | 143 | |
---|
[634e746] | 144 | if ((stderr_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) |
---|
[9700578] | 145 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' ); |
---|
[3a4ae6c] | 146 | |
---|
| 147 | if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2)) |
---|
[9700578] | 148 | rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' ); |
---|
[3a4ae6c] | 149 | } |
---|
| 150 | |
---|
| 151 | int main( |
---|
[ac7d5ef0] | 152 | int argc, |
---|
| 153 | char **argv, |
---|
| 154 | char **environp |
---|
| 155 | ) |
---|
| 156 | { |
---|
[497428a2] | 157 | m68k_isr_entry *monitors_vector_table; |
---|
| 158 | int index; |
---|
[ac7d5ef0] | 159 | |
---|
[3a4ae6c] | 160 | if ((argc > 0) && argv && argv[0]) |
---|
| 161 | rtems_progname = argv[0]; |
---|
| 162 | else |
---|
| 163 | rtems_progname = "RTEMS"; |
---|
| 164 | |
---|
[ac7d5ef0] | 165 | duart_base = (unsigned char *)DUART_ADDR; |
---|
| 166 | |
---|
| 167 | /* |
---|
| 168 | * Set the VBR here to the monitor's default. |
---|
| 169 | */ |
---|
| 170 | |
---|
[497428a2] | 171 | monitors_vector_table = (m68k_isr_entry *)0; |
---|
| 172 | /* This is where you set vector base register = 0 */ |
---|
[ac7d5ef0] | 173 | m68k_set_vbr( monitors_vector_table ); |
---|
| 174 | |
---|
| 175 | /* The vector interrupt table for the 680x0 is in appendix B-2 |
---|
| 176 | of the M68000 Family Programmer's reference table */ |
---|
| 177 | for ( index=2 ; index<=255 ; index++ ) |
---|
| 178 | M68Kvec[ index ] = monitors_vector_table[ 32 ]; |
---|
| 179 | |
---|
| 180 | |
---|
| 181 | M68Kvec[ 2 ] = monitors_vector_table[ 2 ]; /* bus error vector */ |
---|
| 182 | M68Kvec[ 4 ] = monitors_vector_table[ 4 ]; /* breakpoints vector */ |
---|
| 183 | M68Kvec[ 9 ] = monitors_vector_table[ 9 ]; /* trace vector */ |
---|
| 184 | |
---|
| 185 | /* |
---|
| 186 | * Set the VBR here if you do not want to use the monitor's vector table. |
---|
| 187 | */ |
---|
| 188 | |
---|
| 189 | m68k_set_vbr( &M68Kvec ); |
---|
| 190 | |
---|
| 191 | m68k_enable_caching(); |
---|
| 192 | |
---|
| 193 | /* |
---|
| 194 | * we only use a hook to get the C library initialized. |
---|
| 195 | */ |
---|
| 196 | |
---|
[3652ad35] | 197 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
---|
| 198 | |
---|
| 199 | Cpu_table.predriver_hook = NULL; |
---|
| 200 | |
---|
[3a4ae6c] | 201 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
---|
[3652ad35] | 202 | |
---|
[ac7d5ef0] | 203 | Cpu_table.idle_task = NULL; /* do not override system IDLE task */ |
---|
| 204 | |
---|
| 205 | Cpu_table.do_zero_of_workspace = TRUE; |
---|
| 206 | |
---|
[497428a2] | 207 | Cpu_table.interrupt_vector_table = (m68k_isr_entry *) &M68Kvec; |
---|
[ac7d5ef0] | 208 | |
---|
| 209 | Cpu_table.interrupt_stack_size = 4096; |
---|
| 210 | |
---|
[8cbbe312] | 211 | Cpu_table.extra_mpci_receive_server_stack = 0; |
---|
[ac7d5ef0] | 212 | |
---|
| 213 | /* |
---|
| 214 | * Copy the table |
---|
| 215 | */ |
---|
| 216 | |
---|
| 217 | BSP_Configuration = Configuration; |
---|
| 218 | |
---|
| 219 | BSP_Configuration.work_space_start = (void *) |
---|
| 220 | (RAM_END - BSP_Configuration.work_space_size); |
---|
| 221 | |
---|
| 222 | /* |
---|
| 223 | * Add 1 region for the RTEMS Malloc |
---|
| 224 | */ |
---|
| 225 | |
---|
[e6d4b1d] | 226 | BSP_Configuration.RTEMS_api_configuration->maximum_regions++; |
---|
[ac7d5ef0] | 227 | |
---|
| 228 | /* |
---|
| 229 | * Add 1 extension for newlib libc |
---|
| 230 | */ |
---|
| 231 | |
---|
| 232 | #ifdef RTEMS_NEWLIB |
---|
| 233 | BSP_Configuration.maximum_extensions++; |
---|
| 234 | #endif |
---|
| 235 | |
---|
| 236 | /* |
---|
| 237 | * Add another extension if using the stack checker |
---|
| 238 | */ |
---|
| 239 | |
---|
| 240 | #ifdef STACK_CHECKER_ON |
---|
| 241 | BSP_Configuration.maximum_extensions++; |
---|
| 242 | #endif |
---|
| 243 | |
---|
[3a4ae6c] | 244 | /* |
---|
| 245 | * Tell libio how many fd's we want and allow it to tweak config |
---|
| 246 | */ |
---|
| 247 | |
---|
| 248 | rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS); |
---|
| 249 | |
---|
[ac7d5ef0] | 250 | /* led_putnum('e'); * for debugging purposes only */ |
---|
| 251 | rtems_initialize_executive( &BSP_Configuration, &Cpu_table );/* does not return */ |
---|
| 252 | |
---|
| 253 | /* Clock_exit is done as an atexit() function */ |
---|
| 254 | |
---|
| 255 | return 0; |
---|
| 256 | } |
---|