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Diffstat (limited to 'c/src/lib/libbsp/mips/rbtx4938/startup/bspstart.c')
-rw-r--r-- | c/src/lib/libbsp/mips/rbtx4938/startup/bspstart.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/mips/rbtx4938/startup/bspstart.c b/c/src/lib/libbsp/mips/rbtx4938/startup/bspstart.c new file mode 100644 index 0000000000..91012b8fdc --- /dev/null +++ b/c/src/lib/libbsp/mips/rbtx4938/startup/bspstart.c @@ -0,0 +1,104 @@ +/* + * This routine starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before this routine is invoked. + * + * COPYRIGHT (c) 1989-2000. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * bspstart.c,v 1.4.2.1 2003/09/04 18:44:49 joel Exp + */ + +#include <string.h> + +#include <bsp.h> +#include <rtems/libio.h> +#include <rtems/libcsupport.h> + +#define LIBC_HEAP_SIZE (64 * 1024) + +extern int end; /* defined by linker */ + +/* + * The original table from the application and our copy of it with + * some changes. + */ + +extern rtems_configuration_table Configuration; + +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; + +char *rtems_progname; + +/* + * Use the shared implementations of the following routines + */ + +void bsp_postdriver_hook(void); +void bsp_libc_init( void *, uint32_t, int ); + +void init_exc_vecs(void); + +/* + * Function: bsp_pretasking_hook + * Created: 95/03/10 + * + * Description: + * BSP pretasking hook. Called just before drivers are initialized. + * Used to setup libc and install any BSP extensions. + * + * NOTES: + * Must not use libc (to do io) from here, since drivers are + * not yet initialized. + * + */ + +void bsp_pretasking_hook(void) +{ + uint32_t heap_start; + + heap_start = (uint32_t) &end; + if (heap_start & (CPU_ALIGNMENT-1)) + heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); + + bsp_libc_init((void *) heap_start, LIBC_HEAP_SIZE, 0); + +#ifdef RTEMS_DEBUG + rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); +#endif + +} + +/* + * bsp_start + * + * This routine does the bulk of the system initialization. + */ + +void bsp_start( void ) +{ + extern int WorkspaceBase; + extern void mips_install_isr_entries(void); + + /* Configure Number of Register Caches */ + + Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ + Cpu_table.postdriver_hook = bsp_postdriver_hook; + Cpu_table.interrupt_stack_size = 4096; + + BSP_Configuration.work_space_start = + (void *)((uint64_t)((&end) + LIBC_HEAP_SIZE + 0x100) & ~0x7); + + mips_install_isr_entries(); /* Install generic MIPS exception handler */ + +/* init_exc_vecs(); */ /* Install BSP specific exception handler */ + +} + |