summaryrefslogtreecommitdiffstats
path: root/c/src/exec/score/cpu/arm/cpu.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--c/src/exec/score/cpu/arm/cpu.c243
1 files changed, 0 insertions, 243 deletions
diff --git a/c/src/exec/score/cpu/arm/cpu.c b/c/src/exec/score/cpu/arm/cpu.c
deleted file mode 100644
index 3ae3f5828a..0000000000
--- a/c/src/exec/score/cpu/arm/cpu.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * ARM CPU Dependent Source
- *
- *
- * COPYRIGHT (c) 2000 Canon Research Centre France SA.
- * Emmanuel Raguet, mailto:raguet@crf.canon.fr
- *
- * Copyright (c) 2002 Advent Networks, Inc
- * Jay Monkman <jmonkman@adventnetworks.com>
- *
- * 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.
- *
- */
-
-#include <rtems/system.h>
-#include <rtems.h>
-#include <rtems/bspIo.h>
-#include <rtems/score/isr.h>
-#include <rtems/score/wkspace.h>
-#include <rtems/score/thread.h>
-#include <rtems/score/cpu.h>
-
-/* _CPU_Initialize
- *
- * This routine performs processor dependent initialization.
- *
- * INPUT PARAMETERS:
- * cpu_table - CPU table to initialize
- * thread_dispatch - address of ISR disptaching routine (unused)
- *
- */
-
-void _CPU_Initialize(
- rtems_cpu_table *cpu_table,
- void (*thread_dispatch) /* ignored on this CPU */
-)
-{
- _CPU_Table = *cpu_table;
-}
-
-/*
- *
- * _CPU_ISR_Get_level - returns the current interrupt level
- */
-
-unsigned32 _CPU_ISR_Get_level( void )
-{
- unsigned32 reg;
-
- asm volatile ("mrs %0, cpsr \n" \
- "and %0, %0, #0xc0 \n" \
- : "=r" (reg));
-
- return reg;
-}
-
-/*
- * _CPU_ISR_install_vector
- *
- * This kernel routine installs the RTEMS handler for the
- * specified vector.
- *
- * Input parameters:
- * vector - interrupt vector number
- * new_handler - replacement ISR for this vector number
- * old_handler - pointer to store former ISR for this vector number
- *
- * FIXME: This vector scheme should be changed to allow FIQ to be
- * handled better. I'd like to be able to put VectorTable
- * elsewhere - JTM
- *
- *
- * Output parameters: NONE
- *
- */
-void _CPU_ISR_install_vector(
- unsigned32 vector,
- proc_ptr new_handler,
- proc_ptr *old_handler
-)
-{
- /* pointer on the redirection table in RAM */
- long *VectorTable = (long *)(MAX_EXCEPTIONS * 4);
-
- if (old_handler != NULL) {
- old_handler = *(proc_ptr *)(VectorTable + vector);
- }
-
- *(VectorTable + vector) = (long)new_handler ;
-
-}
-
-void _CPU_Context_Initialize(
- Context_Control *the_context,
- unsigned32 *stack_base,
- unsigned32 size,
- unsigned32 new_level,
- void *entry_point,
- boolean is_fp
-)
-{
- the_context->register_sp = ((unsigned32)(stack_base)) + (size) ;
- the_context->register_pc = (entry_point);
- the_context->register_cpsr = (new_level | 0x13);
-}
-
-/*PAGE
- *
- * _CPU_Install_interrupt_stack
- */
-
-void _CPU_Install_interrupt_stack( void )
-{
-/* FIXME: do something here */
-#if 0
- extern unsigned long _fiq_stack;
- extern unsigned long _fiq_stack_size;
- extern unsigned long _irq_stack;
- extern unsigned long _irq_stack_size;
- extern unsigned long _abt_stack;
- extern unsigned long _abt_stack_size;
- unsigned long *ptr;
- int i;
-
- ptr = &_fiq_stack;
- for (i = 0; i < ((int)&_fiq_stack_size/4); i++) {
- ptr[i] = 0x13131313;
- }
-
- ptr = &_irq_stack;
- for (i = 0; i < ((int)&_irq_stack_size/4); i++) {
- ptr[i] = 0xf0f0f0f0;
- }
-
- ptr = &_abt_stack;
- for (i = 0; i < ((int)&_abt_stack_size/4); i++) {
- ptr[i] = 0x55555555;
- }
-#endif
-}
-
-/*PAGE
- *
- * _CPU_Thread_Idle_body
- *
- * NOTES:
- *
- * 1. This is the same as the regular CPU independent algorithm.
- *
- * 2. If you implement this using a "halt", "idle", or "shutdown"
- * instruction, then don't forget to put it in an infinite loop.
- *
- * 3. Be warned. Some processors with onboard DMA have been known
- * to stop the DMA if the CPU were put in IDLE mode. This might
- * also be a problem with other on-chip peripherals. So use this
- * hook with caution.
- */
-
-void _CPU_Thread_Idle_body( void )
-{
-
- while(1); /* FIXME: finish this */
- /* insert your "halt" instruction here */ ;
-}
-
-void _defaultExcHandler (CPU_Exception_frame *ctx)
-{
- printk("\n\r");
- printk("----------------------------------------------------------\n\r");
- printk("Exception 0x%x caught at PC 0x%x by thread %d\n",
- ctx->register_pc, ctx->register_lr - 4,
- _Thread_Executing->Object.id);
- printk("----------------------------------------------------------\n\r");
- printk("Processor execution context at time of the fault was :\n\r");
- printk("----------------------------------------------------------\n\r");
- printk(" r0 = %8x r1 = %8x r2 = %8x r3 = %8x\n\r",
- ctx->register_r0, ctx->register_r1,
- ctx->register_r2, ctx->register_r3);
- printk(" r4 = %8x r5 = %8x r6 = %8x r7 = %8x\n\r",
- ctx->register_r4, ctx->register_r5,
- ctx->register_r6, ctx->register_r7);
- printk(" r8 = %8x r9 = %8x r10 = %8x\n\r",
- ctx->register_r8, ctx->register_r9, ctx->register_r10);
- printk(" fp = %8x ip = %8x sp = %8x pc = %8x\n\r",
- ctx->register_fp, ctx->register_ip,
- ctx->register_sp, ctx->register_lr - 4);
- printk("----------------------------------------------------------\n\r");
-
- if (_ISR_Nest_level > 0) {
- /*
- * In this case we shall not delete the task interrupted as
- * it has nothing to do with the fault. We cannot return either
- * because the eip points to the faulty instruction so...
- */
- printk("Exception while executing ISR!!!. System locked\n\r");
- while(1);
- }
- else {
- printk("*********** FAULTY THREAD WILL BE DELETED **************\n\r");
- rtems_task_delete(_Thread_Executing->Object.id);
- }
-}
-
-cpuExcHandlerType _currentExcHandler = _defaultExcHandler;
-
-extern void _Exception_Handler_Undef_Swi();
-extern void _Exception_Handler_Abort();
-/* FIXME: put comments here */
-void rtems_exception_init_mngt()
-{
- ISR_Level level;
-
- _CPU_ISR_Disable(level);
- _CPU_ISR_install_vector(ARM_EXCEPTION_UNDEF,
- _Exception_Handler_Undef_Swi,
- NULL);
-
- _CPU_ISR_install_vector(ARM_EXCEPTION_SWI,
- _Exception_Handler_Undef_Swi,
- NULL);
-
- _CPU_ISR_install_vector(ARM_EXCEPTION_PREF_ABORT,
- _Exception_Handler_Abort,
- NULL);
-
- _CPU_ISR_install_vector(ARM_EXCEPTION_DATA_ABORT,
- _Exception_Handler_Abort,
- NULL);
-
- _CPU_ISR_install_vector(ARM_EXCEPTION_FIQ,
- _Exception_Handler_Abort,
- NULL);
-
- _CPU_ISR_install_vector(ARM_EXCEPTION_IRQ,
- _Exception_Handler_Abort,
- NULL);
-
- _CPU_ISR_Enable(level);
-}
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-02 12:05:52 +0000