void platform_init_interrupts(void)
{
unsigned int i;
// reset the controller
*REG32(INTC_SYSCONFIG) = 0x2; // start a reset
while ((*REG32(INTC_SYSSTATUS) & 0x1) == 0)
;
// mask all interrupts
*REG32(INTC_MIR(0)) = 0xffffffff;
*REG32(INTC_MIR(1)) = 0xffffffff;
*REG32(INTC_MIR(2)) = 0xffffffff;
// set up each of the interrupts
for (i = 0; i < INT_VECTORS; i++) {
// set each vector up as high priority IRQ
*REG32(INTC_ILR(i)) = 0;
//*ICReg(i / 32, INTCON_ILR_BASE + 4*(i%32)) = ((level_trigger[i/32] & (1<<(i%32))) ? (1<<1) : (0<<1)) | 0;
}
// disable the priority threshold
*REG32(INTC_THRESHOLD) = 0xff;
// clear any pending sw interrupts
*REG32(INTC_ISR_CLEAR(0)) = 0xffffffff;
*REG32(INTC_ISR_CLEAR(1)) = 0xffffffff;
*REG32(INTC_ISR_CLEAR(2)) = 0xffffffff;
// globally unmask interrupts
*REG32(INTC_CONTROL) = 3; // reset and enable the controller
}
/**
* \brief This API assigns a priority to an interrupt and routes it to
* either IRQ or to FIQ. Priority 0 is the highest priority level
* Among the host interrupts, FIQ has more priority than IRQ.
*
* \param intrNum - Interrupt number
* \param priority - Interrupt priority level
* \param hostIntRoute - The host interrupt IRQ/FIQ to which the interrupt
* is to be routed.
* 'priority' can take any value from 0 to 127, 0 being the highest and
* 127 being the lowest priority.
*
* 'hostIntRoute' can take one of the following values \n
* AINTC_HOSTINT_ROUTE_IRQ - To route the interrupt to IRQ \n
* AINTC_HOSTINT_ROUTE_FIQ - To route the interrupt to FIQ
*
* \return None.
*
**/
void IntPrioritySet(unsigned int intrNum, unsigned int priority,
unsigned int hostIntRoute)
{
HWREG(SOC_AINTC_REGS + INTC_ILR(intrNum)) =
((priority << INTC_ILR_PRIORITY_SHIFT)
& INTC_ILR_PRIORITY)
| hostIntRoute ;
}
