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//-----------------------------------------------------------------------------
// *! (C) Copyright International Business Machines Corp. 2014
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
//-----------------------------------------------------------------------------
/// \file ppe42_init.c
/// \brief PPE42 initialization routines
///
/// The entry points in this file are routines that are typically used during
/// initialization, and their code space could be deallocated and recovered if
/// no longer needed by the application after initialization.
#include "pk.h"
#include "pk_trace.h"
// Note that __ppe42_system_setup() is called from the PK bootloader early
// in the initialization, at a point before the aplication has enabled
// critical or external interruts.
// This function is expected to be defined by the macro specific code (GPE, CME, SBE)
void __hwmacro_setup(void);
void
__ppe42_system_setup()
{
//Only do this if the application hasn't provided a static table definition
#ifndef STATIC_IRQ_TABLE
PkIrqId irq;
// Initialize the interrupt vectors.
for (irq = 0; irq < EXTERNAL_IRQS; irq++) {
__ppe42_irq_handlers[irq].handler = __ppe42_default_irq_handler;
}
//NOTE: EXTERNAL_IRQS is the phantom interrupt assigned irq
__ppe42_irq_handlers[irq].handler = __ppe42_phantom_irq_handler;
// Initialize special interrupt handlers
/*
__ppe42_fit_routine = __ppe42_default_irq_handler;
__ppe42_fit_arg = 0;
__ppe42_watchdog_routine = __ppe42_default_irq_handler;
__ppe42_watchdog_arg = 0;
__ppe42_debug_routine = __ppe42_default_irq_handler;
__ppe42_debug_arg = 0;
*/
#endif /*STATIC_IRQ_TABLE*/
//Clear all status bits in the TSR
mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS);
#ifdef APPCFG_USE_EXT_TIMEBASE
//Enable the DEC interrupt and configure it to use the external dec_timer signal
mtspr(SPRN_TCR, TCR_DIE | TCR_DS);
#else
//Enable the DEC interrupt and configure it to use the internal clock signal
mtspr(SPRN_TCR, TCR_DIE);
#endif /* APPCFG_USE_EXT_TIMEBASE */
#if PK_TIMER_SUPPORT
#if PK_TRACE_SUPPORT
extern PkTraceBuffer g_pk_trace_buf;
//set the ppe instance id
g_pk_trace_buf.instance_id = (uint16_t)(mfspr(SPRN_PIR) & PIR_PPE_INSTANCE_MASK);
#endif /* PK_TRACE_SUPPORT */
#endif /* PK_TIMER_SUPPORT */
//call macro-specific setup
__hwmacro_setup();
}
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