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Allow single spurious FPGA interrupt.

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This commit is contained in:
Eric Norum
2006-05-15 15:59:01 +00:00
parent a7edc92901
commit 8a742ddf67
2 changed files with 9 additions and 3 deletions
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1
c/src/lib/libbsp/m68k/uC5282/ChangeLog
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@@ -1,6 +1,7 @@
2006-05-15 Eric Norum <norume@aps.anl.gov>
* startup/bspstart.c: Add checks for FPGA interrupt request overflow.
Allow single spurious FPGA interrupt.
2006-04-11 Eric Norum <norume@aps.anl.gov>

11
c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c
View File

@@ -476,7 +476,7 @@ trampoline (rtems_vector_number v)
if (++loopcount >= 50) {
rtems_interrupt_level level;
rtems_interrupt_disable(level);
printk("\nTOO MANY FPGA INTERRUPTS (LAST WAS 0x%x) -- DISABLING ALL FPGA INTERRUPTS.\n", v);
printk("\nTOO MANY FPGA INTERRUPTS (LAST WAS 0x%x) -- DISABLING ALL FPGA INTERRUPTS.\n", v & 0x3f);
MCF5282_INTC0_IMRL |= MCF5282_INTC_IMRL_INT1;
rtems_interrupt_enable(level);
return;
@@ -486,9 +486,14 @@ trampoline (rtems_vector_number v)
}
else {
rtems_interrupt_level level;
rtems_vector_number nv;
rtems_interrupt_disable(level);
printk("\nINVALID FPGA INTERRUPT (0x%x) -- DISABLING ALL FPGA INTERRUPTS.\n", v);
MCF5282_INTC0_IMRL |= MCF5282_INTC_IMRL_INT1;
printk("\nSPURIOUS FPGA INTERRUPT (0x%x).\n", v & 0x3f);
if ((((nv = FPGA_IRQ_INFO) & 0x80) != 0)
&& ((nv & 0x3f) == (v & 0x3f))) {
printk("DISABLING ALL FPGA INTERRUPTS.\n");
MCF5282_INTC0_IMRL |= MCF5282_INTC_IMRL_INT1;
}
rtems_interrupt_enable(level);
return;
}