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| author | Daniel Hellstrom <daniel@gaisler.com> | 2012-04-05 10:23:20 -0500 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2012-04-06 09:03:35 -0500 |
| commit | 684b54a986d8093cc1bf679130630b47bba6d638 (patch) | |
| tree | 8ac874aa36e5fc0d0641943aa50f566b4eb8b8bd /c/src/lib/libbsp | |
| parent | SPARC BSPs: implemented shared-irq using libbsp/shared layer (diff) | |
| download | rtems-684b54a986d8093cc1bf679130630b47bba6d638.tar.bz2 | |
LEON3: halt boot if IRQ controller not found
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Diffstat (limited to 'c/src/lib/libbsp')
| -rw-r--r-- | c/src/lib/libbsp/sparc/leon3/amba/amba.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/c/src/lib/libbsp/sparc/leon3/amba/amba.c b/c/src/lib/libbsp/sparc/leon3/amba/amba.c index 03af2265d2..e334aecd09 100644 --- a/c/src/lib/libbsp/sparc/leon3/amba/amba.c +++ b/c/src/lib/libbsp/sparc/leon3/amba/amba.c @@ -44,13 +44,18 @@ void amba_initialize(void) /* Scan the AMBA Plug&Play info at the default LEON3 area */ amba_scan(&amba_conf,LEON3_IO_AREA,NULL); - /* Find LEON3 Interrupt controler */ + /* Find LEON3 Interrupt controller */ i = amba_find_apbslv(&amba_conf,VENDOR_GAISLER,GAISLER_IRQMP,&dev); - if ( i > 0 ){ - /* Found APB IRQ_MP Interrupt Controller */ - LEON3_IrqCtrl_Regs = (volatile LEON3_IrqCtrl_Regs_Map *) dev.start; + if (i <= 0){ + /* PANIC IRQ controller not found! + * + * What else can we do but stop ... + */ + asm volatile( "mov 1, %g1; ta 0x0" ); } + LEON3_IrqCtrl_Regs = (volatile LEON3_IrqCtrl_Regs_Map *) dev.start; + /* Init Extended IRQ controller if available */ leon3_ext_irq_init(); |