mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
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eba2e4f7b3
* startup/bspstart.c: assoc.h, error.h, libio_.h, libio.h, and libcsupport.h moved from libc to lib/include/rtems and now must be referenced as <rtems/XXX.h>. Header file order was cleaned up while doing this.
140 lines
3.2 KiB
C
140 lines
3.2 KiB
C
/* bsp_start()
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*
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* This routine starts the application. It includes application,
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* board, and monitor specific initialization and configuration.
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* The generic CPU dependent initialization has been performed
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* before this routine is invoked.
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*
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* INPUT: NONE
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*
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* OUTPUT: NONE
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*
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* COPYRIGHT (c) 1989-1997.
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* On-Line Applications Research Corporation (OAR).
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* Copyright assigned to U.S. Government, 1994.
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*
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* The license and distribution terms for this file may in
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* the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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*
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* $Id$
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*/
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#include <string.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <bsp.h>
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#include <rtems/libio.h>
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#include <rtems/libcsupport.h>
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#define HEAP_SIZE 1024*1024*2
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/*
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* The original table from the application and our copy of it with
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* some changes.
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*/
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extern int putnum(unsigned int);
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extern rtems_configuration_table Configuration;
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extern void bsp_postdriver_hook(void); /* defined in shared directory */
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rtems_configuration_table BSP_Configuration;
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rtems_cpu_table Cpu_table;
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char *rtems_progname;
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unsigned int top_of_used_memory;
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/*
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* Function: bsp_pretasking_hook
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* Created: 95/03/10
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*
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* Description:
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* BSP pretasking hook. Called just before drivers are initialized.
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* Used to setup libc and install any BSP extensions.
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*
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* NOTES:
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* Must not use libc (to do io) from here, since drivers are
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* not yet initialized.
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*
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*/
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void
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bsp_pretasking_hook(void)
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{
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extern int end;
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rtems_unsigned32 heap_start;
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*(unsigned char *)(0x120f) = 0xd;
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/* heap_start = (rtems_unsigned32) &end; */
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heap_start = (rtems_unsigned32) top_of_used_memory;
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if (heap_start & (CPU_ALIGNMENT-1))
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heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
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bsp_libc_init((void *) heap_start, 64 * 1024, 0);
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#ifdef RTEMS_DEBUG
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rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
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#endif
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*(unsigned char *)(0x120f) = 0xf;
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}
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/* we need to have the top of memory remembered later to start libc_init with
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the correct values
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*/
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int rx_boot_card( int argc, char **argv, char **environp)
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{
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extern int end;
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top_of_used_memory = (rtems_unsigned32) &end + 0x1000;
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if ((argc > 0) && argv && argv[0])
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rtems_progname = argv[0];
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else
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rtems_progname = "RTEMS/RP";
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boot_card(argc, argv);
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}
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bsp_start(void)
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{
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*(unsigned int *)OIMR_ADDR = 0xff; /* Mask all primary PCI Interrupts*/
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Prcb = get_prcb();
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Ctl_tbl = Prcb->control_tbl;
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*(unsigned char *)(0x120f) = 8;
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/*
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* we do not use the pretasking_hook.
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*/
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Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
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Cpu_table.postdriver_hook = bsp_postdriver_hook;
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Cpu_table.do_zero_of_workspace = TRUE;
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Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
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Cpu_table.extra_mpci_receive_server_stack = 0;
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/* just trying to get along */
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Cpu_table.stack_allocate_hook = 0;
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Cpu_table.stack_free_hook = 0;
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/*
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* Tell libio how many fd's we want and allow it to tweak config
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*/
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*(unsigned char *)(0x120f) = 0x09;
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BSP_Configuration.work_space_start = (void *) top_of_used_memory;
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top_of_used_memory += (BSP_Configuration.work_space_size + 0x1000);
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*(unsigned char *)(0x120f) = 0x0a;
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return 0;
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}
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