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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/ssx/ppc405/ppc405_init.c $ */
/* */
/* OpenPOWER OnChipController Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/// \file ppc405_init.c
/// \brief PPC405 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 "ssx.h"
#include "ssx_trace.h"
// Note that __ppc405_system_setup() is called from the SSX bootloader early
// in the initialization, at a point before the aplication has enabled
// critical or external interruts.
void
__ppc405_system_setup()
{
SsxIrqId irq;
// Initialize the interrupt vectors.
for (irq = 0; irq < EXTERNAL_IRQS; irq++)
{
__ppc405_irq_handlers[irq].handler = __ppc405_default_irq_handler;
__ppc405_irq_handlers[irq].arg = 0;
}
__ppc405_phantom_irq.handler = __ppc405_phantom_irq_handler;
__ppc405_phantom_irq.arg = 0;
// Initialize special interrupt handlers
__ppc405_fit_routine = __ppc405_default_irq_handler;
__ppc405_fit_arg = 0;
__ppc405_watchdog_routine = __ppc405_default_irq_handler;
__ppc405_watchdog_arg = 0;
__ppc405_debug_routine = __ppc405_default_irq_handler;
__ppc405_debug_arg = 0;
// Enable the PIT interrupt, but not auto-reload mode. Clear the status
// of all timers for good measure.
andc_spr(SPRN_TCR, TCR_ARE);
or_spr(SPRN_TCR, TCR_PIE);
or_spr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_PIS | TSR_FIS);
#if SSX_TIMER_SUPPORT
#if SSX_TRACE_SUPPORT
extern SsxTraceBuffer g_ssx_trace_buf;
//set the instance id
g_ssx_trace_buf.instance_id = OCCHW_INST_ID_PPC;
#endif /* SSX_TRACE_SUPPORT */
#endif /* SSX_TIMER_SUPPORT */
#ifdef HWMACRO_OCC
// Call system-specific setup
void __occhw_setup();
__occhw_setup();
#endif
}
// Set the timebase using the PowerPC protocol.
void
__ssx_timebase_set(SsxTimebase t)
{
Uint64 tb;
tb.value = t;
mttbl(0);
mttbu(tb.word[0]);
mttbl(tb.word[1]);
}
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