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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i960/] [rxgen960/] [startup/] [bspstart.c] - Rev 814
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/* bsp_start() * * 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. * * INPUT: NONE * * OUTPUT: NONE * * COPYRIGHT (c) 1989-1997. * On-Line Applications Research Corporation (OAR). * Copyright assigned to U.S. Government, 1994. * * The license and distribution terms for this file may in * the file LICENSE in this distribution or at * http://www.OARcorp.com/rtems/license.html. * * $Id: bspstart.c,v 1.2 2001-09-27 11:59:59 chris Exp $ */ #include <bsp.h> #include <rtems/libio.h> #include <libcsupport.h> #include <string.h> #include <fcntl.h> #include <stdio.h> #include "i960RP.h" #include <rtems/libio.h> #ifdef STACK_CHECKER_ON #include <stackchk.h> #endif #define HEAP_SIZE 1024*1024*2 /* * The original table from the application and our copy of it with * some changes. */ extern int putnum(unsigned int); extern rtems_configuration_table Configuration; extern void bsp_postdriver_hook(void); /* defined in shared directory */ rtems_configuration_table BSP_Configuration; rtems_cpu_table Cpu_table; char *rtems_progname; unsigned int top_of_used_memory; /* * 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) { extern int end; rtems_unsigned32 heap_start; *(unsigned char *)(0x120f) = 0xd; /* heap_start = (rtems_unsigned32) &end; */ heap_start = (rtems_unsigned32) top_of_used_memory; if (heap_start & (CPU_ALIGNMENT-1)) heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); bsp_libc_init((void *) heap_start, 64 * 1024, 0); #ifdef STACK_CHECKER_ON /* * Initialize the stack bounds checker * We can either turn it on here or from the app. */ *(unsigned char *)(0x120f) = 0xe; Stack_check_Initialize(); #endif #ifdef RTEMS_DEBUG rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); #endif *(unsigned char *)(0x120f) = 0xf; } /* we need to have the top of memory remembered later to start libc_init with the correct values */ int rx_boot_card( int argc, char **argv, char **environp) { extern int end; top_of_used_memory = (rtems_unsigned32) &end + 0x1000; if ((argc > 0) && argv && argv[0]) rtems_progname = argv[0]; else rtems_progname = "RTEMS/RP"; boot_card(argc, argv); } bsp_start(void) { *(unsigned int *)OIMR_ADDR = 0xff; /* Mask all primary PCI Interrupts*/ Prcb = get_prcb(); Ctl_tbl = Prcb->control_tbl; *(unsigned char *)(0x120f) = 8; /* * we do not use the pretasking_hook. */ Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ Cpu_table.postdriver_hook = bsp_postdriver_hook; Cpu_table.do_zero_of_workspace = TRUE; Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY; Cpu_table.extra_mpci_receive_server_stack = 0; Cpu_table.Prcb = Prcb; /* just trying to get along */ Cpu_table.stack_allocate_hook = 0; Cpu_table.stack_free_hook = 0; /* * Tell libio how many fd's we want and allow it to tweak config */ *(unsigned char *)(0x120f) = 0x09; BSP_Configuration.work_space_start = (void *) top_of_used_memory; top_of_used_memory += (BSP_Configuration.work_space_size + 0x1000); *(unsigned char *)(0x120f) = 0x0a; return 0; }
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