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Diffstat (limited to 'c/src/lib/libbsp/sparc/erc32/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/sparc/erc32/startup/bspstart.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c deleted file mode 100644 index 8e2f0f2047..0000000000 --- a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * This set of routines starts the application. It includes application, - * board, and monitor specific initialization and configuration. - * The generic CPU dependent initialization has been performed - * before any of these are invoked. - * - * COPYRIGHT (c) 1989-1999. - * 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.OARcorp.com/rtems/license.html. - * - * Ported to ERC32 implementation of the SPARC by On-Line Applications - * Research Corporation (OAR) under contract to the European Space - * Agency (ESA). - * - * ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995. - * European Space Agency. - * - * $Id$ - */ - -#include <string.h> - -#include <bsp.h> -#include <rtems/libio.h> -#include <rtems/libcsupport.h> - -/* - * 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; - -/* - * Tells us where to put the workspace in case remote debugger is present. - */ - -extern rtems_unsigned32 rdb_start; - -/* - * Mirror of the Timer Control Register - */ - -unsigned32 _ERC32_MEC_Timer_Control_Mirror; - -/* - * Amount to increment itimer by each pass - * It is a variable instead of a #define to allow the 'looptest' - * script to bump it without recompiling rtems - * - * NOTE: This is based on the PA-RISC simulator. I don't know if we - * can actually pull this trick on the SPARC simulator. - */ - -rtems_unsigned32 CPU_SPARC_CLICKS_PER_TICK; - -#if SIMSPARC_FAST_IDLE - -/* - * Many of the tests are very slow on the simulator because they have - * have 5 second delays hardwired in. - * - * Try to speed those tests up by speeding up the clock when in the idle task. - * - * NOTE: At the current setting, 5 second delays in the tests take - * approximately 5 seconds of wall time. - */ - -rtems_extension fast_idle_switch_hook( - rtems_tcb *current_task, - rtems_tcb *heir_task -) -{ - static rtems_unsigned32 normal_clock = ~0; - static rtems_unsigned32 fast_clock; - - /* init our params on first call */ - if (normal_clock == ~0) - { - normal_clock = CPU_SPARC_CLICKS_PER_TICK; - fast_clock = CPU_SPARC_CLICKS_PER_TICK / 0x08; - if (fast_clock == 0) /* handle pathological case */ - fast_clock++; - } - - /* - * Run the clock faster when idle is in place. - */ - - if (heir_task == _Thread_Idle) - CPU_SPARC_CLICKS_PER_TICK = fast_clock; - else if (current_task == _Thread_Idle) - CPU_SPARC_CLICKS_PER_TICK = normal_clock; -} - -#endif - -/* - * Use the shared implementations of the following routines - */ - -void bsp_postdriver_hook(void); -void bsp_libc_init( void *, unsigned32, int ); -extern void bsp_spurious_initialize(); - -/* - * bsp_pretasking_hook - * - * BSP pretasking hook. Called just before drivers are initialized. - * Used to setup libc and install any BSP extensions. - */ - -void bsp_pretasking_hook(void) -{ - extern int end; - rtems_unsigned32 heap_start; - rtems_unsigned32 heap_size; - - heap_start = (rtems_unsigned32) &end; - if (heap_start & (CPU_ALIGNMENT-1)) - heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); - - heap_size = BSP_Configuration.work_space_start - (void *)&end; - heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */ - - bsp_libc_init((void *) heap_start, heap_size, 0); - - -#if SIMSPARC_FAST_IDLE - /* - * Install the fast idle task switch extension - * - * On MP systems, might not want to do this; it confuses at least - * one test (mp06) on the PA-RISC simulator - */ - -#if 0 - if (BSP_Configuration.User_multiprocessing_table == 0) -#endif - { - rtems_extensions_table fast_idle_extension; - rtems_id extension_id; - rtems_status_code rc; - - memset(&fast_idle_extension, 0, sizeof(fast_idle_extension)); - - fast_idle_extension.thread_switch = fast_idle_switch_hook; - - rc = rtems_extension_create( - rtems_build_name('F', 'D', 'L', 'E'), - &fast_idle_extension, - &extension_id - ); - if (rc != RTEMS_SUCCESSFUL) - rtems_fatal_error_occurred(rc); - } -#endif - -#ifdef RTEMS_DEBUG - rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); -#endif - - bsp_spurious_initialize(); -} - -/* - * ERC32_Idle_thread_body - * - * ERC32 specific idle task that enters low power mode. - */ - -void ERC32_Idle_thread_body( void ) -{ - while (1) { - ERC32_MEC.Power_Down = 0; /* value is irrelevant */ - } -} - - - -/* - * bsp_start - * - * This routine does the bulk of the system initialization. - */ - -void bsp_start( void ) -{ - unsigned char *work_space_start; - - /* Check if MEC is initialised */ - - if (!(ERC32_MEC.Control & 0xfe080000)) { - - /* - * DISABLE THE HARDWARE WATCHDOG!!! - */ - - ERC32_MEC.Watchdog_Trap_Door_Set = 0; /* value is irrelevant */ - - /* - * Reduce the number of wait states to 0 for all memory areas. - */ - - ERC32_MEC.Wait_State_Configuration = 0; - - } - - /* - * Initialize the mirror of the Timer Control register. - */ - - _ERC32_MEC_Timer_Control_Mirror = 0; - ERC32_MEC.Timer_Control = 0; - - ERC32_MEC.Control |= ERC32_CONFIGURATION_POWER_DOWN_ALLOWED; - - /* - * Set up our hooks - * Make sure libc_init is done before drivers initialized so that - * they can use atexit() - */ - - Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ - Cpu_table.postdriver_hook = bsp_postdriver_hook; - - /* - * 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; - - /* - * ERC32 specific idle task. - */ - - Cpu_table.idle_task = ERC32_Idle_thread_body; - - /* - * This should be enough interrupt stack. - */ - - Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY; - - work_space_start = - (unsigned char *)rdb_start - BSP_Configuration.work_space_size; - - if ( work_space_start <= (unsigned char *)&end ) { - DEBUG_puts( "bspstart: Not enough RAM!!!\n" ); - BSP_fatal_return(); - } - - BSP_Configuration.work_space_start = work_space_start; - -#if SIMSPARC_FAST_IDLE - /* - * Add 1 extension for fast idle - */ - - BSP_Configuration.maximum_extensions++; -#endif - - /* - * Add 1 extension for MPCI_fatal - */ - - if (BSP_Configuration.User_multiprocessing_table) - BSP_Configuration.maximum_extensions++; - - /* - * Set the "clicks per tick" for the simulator - * used by XXX/clock/clock.c to schedule interrupts - */ - - CPU_SPARC_CLICKS_PER_TICK = BSP_Configuration.microseconds_per_tick; -} |