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-rw-r--r--c/src/lib/libbsp/powerpc/dmv177/startup/bspstart.c223
1 files changed, 26 insertions, 197 deletions
diff --git a/c/src/lib/libbsp/powerpc/dmv177/startup/bspstart.c b/c/src/lib/libbsp/powerpc/dmv177/startup/bspstart.c
index fba086515c..1cb84d7d6b 100644
--- a/c/src/lib/libbsp/powerpc/dmv177/startup/bspstart.c
+++ b/c/src/lib/libbsp/powerpc/dmv177/startup/bspstart.c
@@ -20,11 +20,6 @@
#include <libcsupport.h>
#include <string.h>
-#include <fcntl.h>
-
-#ifdef STACK_CHECKER_ON
-#include <stackchk.h>
-#endif
/*
* The original table from the application and our copy of it with
@@ -36,21 +31,22 @@ rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
rtems_unsigned32 bsp_isr_level;
-/* PAGE
- *
- * bsp_libc_init
- *
- * Initialize whatever libc we are using called from bsp_postdriver_hook.
- *
- * Input parameters: NONE
+/*
+ * Use the shared implementations of the following routines
+ */
+
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*PAGE
*
- * Output parameters: NONE
+ * bsp_pretasking_hook
*
- * Return values: NONE
- *
+ * BSP pretasking hook. Called just before drivers are initialized.
+ * Used to setup libc and install any BSP extensions.
*/
-void bsp_libc_init(void)
+void bsp_pretasking_hook(void)
{
extern int end;
rtems_unsigned32 heap_start;
@@ -63,55 +59,7 @@ void bsp_libc_init(void)
heap_size = BSP_Configuration.work_space_start - (void *)&end;
heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */
- RTEMS_Malloc_Initialize((void *) heap_start, heap_size, 0);
-
- /*
- * Init the RTEMS libio facility to provide UNIX-like system
- * calls for use by newlib (ie: provide __rtems_open, __rtems_close, etc)
- * Uses malloc() to get area for the iops, so must be after malloc init
- */
-
- rtems_libio_init();
-
- /*
- * Set up for the libc handling.
- */
-
- if (BSP_Configuration.ticks_per_timeslice > 0)
- libc_init(1); /* reentrant if possible */
- else
- libc_init(0); /* non-reentrant */
-
-}
-
-
-/* PAGE
- *
- * bsp_pretasking_hook
- *
- * BSP pretasking hook. Called just before drivers are initialized.
- * Used to setup libc and install any BSP extensions.
- *
- * Input parameters: NONE
- *
- * Output parameters: NONE
- *
- * Return values: NONE
- *
- */
-
-void bsp_pretasking_hook(void)
-{
- bsp_libc_init();
-
-#ifdef STACK_CHECKER_ON
- /*
- * Initialize the stack bounds checker
- * We can either turn it on here or from the app.
- */
-
- Stack_check_Initialize();
-#endif
+ bsp_libc_init((void *) heap_start, heap_size, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
@@ -136,56 +84,11 @@ void bsp_predriver_hook(void)
initialize_external_exception_vector();
}
-/* PAGE
- *
- * bsp_postdriver_hook
- *
- * After drivers are setup, register some "filenames"
- * and open stdin, stdout, stderr files
- *
- * Newlib will automatically associate the files with these
- * (it hardcodes the numbers)
- *
- * Input parameters: NONE
- *
- * Output parameters: NONE
- *
- * Return values: NONE
- *
- */
-
-void bsp_postdriver_hook(void)
-{
- int stdin_fd, stdout_fd, stderr_fd;
- int error_code;
-
- error_code = 'S' << 24 | 'T' << 16;
-
- if ((stdin_fd = __rtems_open("/dev/console", O_RDONLY, 0)) == -1)
- rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' );
-
- if ((stdout_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1)
- rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' );
-
- if ((stderr_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1)
- rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' );
-
- if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2))
- rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' );
-}
-
-/* PAGE
+/*PAGE
*
* bsp_start
*
* This routine does the bulk of the system initialization.
- *
- * Input parameters: NONE
- *
- * Output parameters: NONE
- *
- * Return values: NONE
- *
*/
void bsp_start( void )
@@ -198,58 +101,15 @@ void bsp_start( void )
* check how the real board comes up. This is critical to
* getting the source to work with the debugger.
*/
+
_CPU_MSR_SET( msr_value );
/*
- * Set up our hooks
- * Make sure libc_init is done before drivers initialized so that
- * they can use atexit()
- */
-
- Cpu_table.exceptions_in_RAM = TRUE;
-
- Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
-
- Cpu_table.predriver_hook = bsp_predriver_hook;
-
- Cpu_table.postdriver_hook = bsp_postdriver_hook;
-
- Cpu_table.idle_task = NULL; /* do not override system IDLE task */
-
- Cpu_table.clicks_per_usec = 66 / 4; /* XXX get from linkcmds */
-
-
- /*
- * SIS does zero out memory BUT only when IT begins execution. Thus
- * if we want to have a clean slate in the workspace each time we
- * begin execution of OUR application, then we must zero the workspace.
- */
-
- Cpu_table.do_zero_of_workspace = TRUE;
-
- /*
- * This should be enough interrupt stack.
- */
-
- Cpu_table.interrupt_stack_size = (12 * 1024);
-
- /*
- * DMV170 does not support MP configurations so there is really no way
- * to check this out.
+ * Need to "allocate" the memory for the RTEMS Workspace and
+ * tell the RTEMS configuration where it is. This memory is
+ * not malloc'ed. It is just "pulled from the air".
*/
- Cpu_table.extra_mpci_receive_server_stack = 0;
-
- /*
- * Copy the table and allocate memory for the RTEMS Workspace
- */
-
- BSP_Configuration = Configuration;
-
-#if defined(RTEMS_POSIX_API)
- BSP_Configuration.work_space_size *= 3;
-#endif
-
work_space_start =
(unsigned char *)&RAM_END - BSP_Configuration.work_space_size;
@@ -261,52 +121,21 @@ void bsp_start( void )
BSP_Configuration.work_space_start = work_space_start;
/*
- * Add 1 region for RTEMS Malloc
- */
-
- BSP_Configuration.RTEMS_api_configuration->maximum_regions++;
-
- /*
* Account for the console's resources
*/
console_reserve_resources( &BSP_Configuration );
-#ifdef RTEMS_NEWLIB
- /*
- * Add 1 extension for newlib libc
- */
-
- BSP_Configuration.maximum_extensions++;
-#endif
-
-#ifdef STACK_CHECKER_ON
/*
- * Add 1 extension for stack checker
+ * initialize the CPU table for this BSP
*/
- BSP_Configuration.maximum_extensions++;
-#endif
-
- /*
- * Add 1 extension for MPCI_fatal
- */
-
- if (BSP_Configuration.User_multiprocessing_table)
- BSP_Configuration.maximum_extensions++;
-
- /*
- * Initialize RTEMS. main() will finish it up and start multitasking.
- */
+ Cpu_table.exceptions_in_RAM = TRUE;
+ Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
+ Cpu_table.predriver_hook = bsp_predriver_hook;
+ Cpu_table.postdriver_hook = bsp_postdriver_hook;
+ Cpu_table.clicks_per_usec = 66 / 4; /* XXX get from linkcmds */
- rtems_libio_config( &BSP_Configuration, BSP_LIBIO_MAX_FDS );
-
- bsp_isr_level = rtems_initialize_executive_early(
- &BSP_Configuration,
- &Cpu_table
- );
+ Cpu_table.do_zero_of_workspace = TRUE;
+ Cpu_table.interrupt_stack_size = (12 * 1024);
}
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 18:05:28 +0000