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/*
* PPCn_60x Spurious Trap Handler
*
* This is just enough of a trap handler to let us know what
* the likely source of the trap was.
*
* Based upon the SPARC ERC32 version which was developed as
* part of the port of RTEMS to the ERC32 implementation
* of the SPARC by On-Line Applications Research Corporation (OAR)
* under contract to the European Space Agency (ESA).
*
* COPYRIGHT (c) 1995. European Space Agency.
*
* This terms of the RTEMS license apply to this file.
*
* $Id$
*/
#include <bsp.h>
#include <string.h>
static const char digits[16] = "0123456789abcdef";
rtems_isr bsp_stub_handler(
rtems_vector_number trap
)
{
}
/*
* bsp_spurious_handler
*
* Print a message on the debug console and then die
*/
rtems_isr bsp_spurious_handler(
rtems_vector_number trap
)
{
DEBUG_puts( "Spurious Trap" );
switch ( trap ) {
case PPC_IRQ_SYSTEM_RESET:
DEBUG_puts( "System reset" );
break;
case PPC_IRQ_MCHECK:
DEBUG_puts( "Machine check" );
break;
case PPC_IRQ_PROTECT:
DEBUG_puts( "DSI" );
break;
case PPC_IRQ_ISI:
DEBUG_puts( "ISI" );
break;
case PPC_IRQ_EXTERNAL:
DEBUG_puts( "External interupt" );
break;
case PPC_IRQ_ALIGNMENT:
DEBUG_puts( "Alignment Exception" );
break;
case PPC_IRQ_PROGRAM:
DEBUG_puts( "Program" );
break;
case PPC_IRQ_NOFP:
DEBUG_puts( "Floating point unavailable" );
break;
case PPC_IRQ_DECREMENTER:
DEBUG_puts( "Decrementer" );
break;
case PPC_IRQ_RESERVED_A:
DEBUG_puts( "Reserved 0x00a00" );
break;
case PPC_IRQ_RESERVED_B:
DEBUG_puts( "Reserved 0x00b00" );
break;
case PPC_IRQ_SCALL:
DEBUG_puts( "System call" );
break;
case PPC_IRQ_TRACE:
DEBUG_puts( "Trace" );
break;
case PPC_IRQ_FP_ASST:
DEBUG_puts( "Floating point Assist" );
break;
#if defined(ppc403)
#error "Please fill in names. "
case PPC_IRQ_CRIT :
DEBUG_puts( "Critical Error ");
break;
case PPC_IRQ_PIT:
DEBUG_puts( "0x01000" );
break;
case PPC_IRQ_FIT:
DEBUG_puts( "0x01010" );
break;
case PPC_IRQ_WATCHDOG :
DEBUG_puts( "0x01020" );
break;
case PPC_IRQ_DEBUG :
DEBUG_puts( "0x02000" );
break;
#elif defined(ppc601)
#error "Please fill in names. "
case PPC_IRQ_TRACE :
DEBUG_puts( "0x02000" );
break;
#elif defined(ppc603)
#error "Please fill in names. "
case PPC_IRQ_TRANS_MISS :
DEBUG_puts( "0x1000" );
break;
case PPC_IRQ_DATA_LOAD:
DEBUG_puts( "0x1100" );
break;
case PPC_IRQ_DATA_STORE:
DEBUG_puts( "0x1200" );
break;
case PPC_IRQ_ADDR_BRK:
DEBUG_puts( "0x1300" );
break;
case PPC_IRQ_SYS_MGT:
DEBUG_puts( "0x1400" );
break;
#elif defined(ppc603e)
case PPC_TLB_INST_MISS:
DEBUG_puts( "Instruction Translation Miss" );
break;
case PPC_TLB_LOAD_MISS:
DEBUG_puts( "Data Load Translation Miss" );
break;
case PPC_TLB_STORE_MISS :
DEBUG_puts( "Data store Translation Miss");
break;
case PPC_IRQ_ADDRBRK:
DEBUG_puts( "Instruction address break point" );
break;
case PPC_IRQ_SYS_MGT:
DEBUG_puts( "System management interrupt" );
break;
#elif defined(ppc604)
#error "Please fill in names. "
case PPC_IRQ_ADDR_BRK:
DEBUG_puts( "0x1300" );
break;
case PPC_IRQ_SYS_MGT:
DEBUG_puts( "0x1400" );
break;
#endif
default:
DEBUG_puts( "Undefined exception " );
break;
}
/*
* What else can we do but stop ...
*/
/*
asm volatile( "" );
*/
}
/*
* bsp_spurious_initialize
*
* Install the spurious handler for most traps.
*/
void bsp_spurious_initialize()
{
rtems_unsigned32 trap;
for ( trap=0 ; trap < PPC_IRQ_LAST ; trap++ ) {
/*
* Skip window overflow, underflow, and flush as well as software
* trap 0 which we will use as a shutdown.
*/
set_vector( bsp_spurious_handler, trap, 1 );
}
set_vector( bsp_stub_handler, PPC_IRQ_DECREMENTER, 1 );
set_vector( bsp_stub_handler, PPC_IRQ_TRACE, 1 );
set_vector( bsp_stub_handler, PPC_IRQ_SYS_MGT, 1 );
}
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