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Diffstat (limited to 'c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c b/c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c new file mode 100644 index 0000000000..00f2b009dc --- /dev/null +++ b/c/src/lib/libbsp/i960/rxgen960/startup/bspstart.c @@ -0,0 +1,180 @@ +/* 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. + * + * $Id$ + */ + +#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 = 8192; + 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; + + /* + * Add 1 region for the RTEMS Malloc + */ + + BSP_Configuration.RTEMS_api_configuration->maximum_regions++; + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Add another extension if using the stack checker + */ + +#ifdef STACK_CHECKER_ON + BSP_Configuration.maximum_extensions++; +#endif + + + /* + * 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; +} + |