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/*
* Score603e Spurious Trap Handler
*
* This is just enough of a trap handler to let us know what
* the likely source of the trap 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
)
{
switch ( trap ) {
case PPC_IRQ_SYSTEM_RESET:
DEBUG_puts( "\nTrap: System reset" );
break;
case PPC_IRQ_MCHECK:
DEBUG_puts( "\nTrap: Machine check" );
break;
case PPC_IRQ_PROTECT:
DEBUG_puts( "\nTrap: DSI" );
break;
case PPC_IRQ_ISI:
DEBUG_puts( "ISI" );
break;
case PPC_IRQ_EXTERNAL:
DEBUG_puts( "\nTrap: External interupt" );
break;
case PPC_IRQ_ALIGNMENT:
DEBUG_puts( "\nTrap: Alignment Exception" );
break;
case PPC_IRQ_PROGRAM:
DEBUG_puts( "\nTrap: Program" );
break;
case PPC_IRQ_NOFP:
DEBUG_puts( "\nTrap: Floating point unavailable" );
break;
case PPC_IRQ_DECREMENTER:
DEBUG_puts( "\nTrap: Decrementer" );
break;
case PPC_IRQ_RESERVED_A:
DEBUG_puts( "\nTrap: Reserved 0x00a00" );
break;
case PPC_IRQ_RESERVED_B:
DEBUG_puts( "\nTrap: Reserved 0x00b00" );
break;
case PPC_IRQ_SCALL:
DEBUG_puts( "\nTrap: System call" );
break;
case PPC_IRQ_TRACE:
DEBUG_puts( "\nTrap: Trace" );
break;
case PPC_IRQ_FP_ASST:
DEBUG_puts( "\nTrap: Floating point Assist" );
break;
#if defined(ppc403)
#error "Please fill in names. "
case PPC_IRQ_CRIT :
DEBUG_puts( "\nTrap: Critical Error ");
break;
case PPC_IRQ_PIT:
DEBUG_puts( "\nTrap: 0x01000" );
break;
case PPC_IRQ_FIT:
DEBUG_puts( "\nTrap: 0x01010" );
break;
case PPC_IRQ_WATCHDOG :
DEBUG_puts( "\nTrap: 0x01020" );
break;
case PPC_IRQ_DEBUG :
DEBUG_puts( "\nTrap: 0x02000" );
break;
#elif defined(ppc601)
#error "Please fill in names. "
case PPC_IRQ_TRACE :
DEBUG_puts( "\nTrap: 0x02000" );
break;
#elif defined(ppc603)
#error "Please fill in names. "
case PPC_IRQ_TRANS_MISS :
DEBUG_puts( "\nTrap: 0x1000" );
break;
case PPC_IRQ_DATA_LOAD:
DEBUG_puts( "\nTrap: 0x1100" );
break;
case PPC_IRQ_DATA_STORE:
DEBUG_puts( "\nTrap: 0x1200" );
break;
case PPC_IRQ_ADDR_BRK:
DEBUG_puts( "\nTrap: 0x1300" );
break;
case PPC_IRQ_SYS_MGT:
DEBUG_puts( "\nTrap: 0x1400" );
break;
#elif defined(ppc603e)
case PPC_TLB_INST_MISS:
DEBUG_puts( "\nTrap: Instruction Translation Miss" );
break;
case PPC_TLB_LOAD_MISS:
DEBUG_puts( "\nTrap: Data Load Translation Miss" );
break;
case PPC_TLB_STORE_MISS :
DEBUG_puts( "\nTrap: Data store Translation Miss");
break;
case PPC_IRQ_ADDRBRK:
DEBUG_puts( "\nTrap: Instruction address break point" );
break;
case PPC_IRQ_SYS_MGT:
DEBUG_puts( "\nTrap: System management interrupt" );
break;
#elif defined(mpc604)
#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( "\nTrap: Undefined exception " );
break;
}
/*
* What else can we do but stop ...
*/
/*
asm volatile( "" );
*/
while (1);
}
/*
* bsp_spurious_initialize
*
* Install the spurious handler for most traps.
*/
void bsp_spurious_initialize()
{
uint32_t trap;
for ( trap=0 ; trap < PPC_IRQ_LAST ; trap++ ) {
if (trap == PPC_IRQ_DECREMENTER)
;
/* set_vector( bsp_stub_handler, trap, 1 ); */
else
set_vector( bsp_spurious_handler, trap, 1 );
}
}
void bsp_set_trap_vectors( void )
{
volatile uint32_t *ptr;
/* reset_vector */
ptr = (uint32_t*)0x00100 ;
*ptr = 0x48000000;
/* org mach_vector */
ptr = (uint32_t*)0x00200;
*ptr = 0x48000000;
/* org prot_vector */
ptr = (uint32_t*)0x00300;
*ptr = 0x48000000;
/* org isi_vector */
ptr = (uint32_t*)0x00400;
*ptr = 0x48000000;
/* org ext_vector */
ptr = (uint32_t*)0x0500 ;
*ptr = 0x48000000;
/* org align_vector */
ptr = (uint32_t*)0x00600 ;
*ptr = 0x48000000;
/* org prog_vector */
ptr = (uint32_t*)0x00700 ;
*ptr = 0x48000000;
/* org float_vector */
ptr = (uint32_t*)0x00800;
*ptr = 0x48000000;
/* org dec_vector - rfi */
ptr = (uint32_t*)0x900;
*ptr = 0x4c000064;
/* org sys_vector */
ptr = (uint32_t*)0x0c00 ;
*ptr = 0x48000000;
/* org trace_vector */
ptr = (uint32_t*)0x0d00 ;
*ptr = 0x48000000;
/* org itm_vector */
ptr = (uint32_t*)0x01000 ;
*ptr = 0x48000000;
/* org dltm_vector */
ptr = (uint32_t*)0x01100 ;
*ptr = 0x48000000;
/* org dstm_vector */
ptr = (uint32_t*)0x1200 ;
*ptr = 0x48000000;
/* org addr_vector */
ptr = (uint32_t*)0x1300 ;
*ptr = 0x48000000;
/* org sysmgmt_vector */
ptr = (uint32_t*)0x1400 ;
*ptr = 0x48000000;
}
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