/*
* We only do anything if we are the master NPU on the board.
* The slave NPU only has the ethernet chip going directly to
* the PCIB interrupt input.
*/
void __init ixdp2x01_init_irq(void)
{
int irq = 0;
/* initialize chip specific interrupts */
ixp2000_init_irq();
if (machine_is_ixdp2401())
valid_irq_mask = IXDP2401_VALID_IRQ_MASK;
else
valid_irq_mask = IXDP2801_VALID_IRQ_MASK;
/* Mask all interrupts from CPLD, disable simulation */
ixp2000_reg_write(IXDP2X01_INT_MASK_SET_REG, 0xffffffff);
ixp2000_reg_write(IXDP2X01_INT_SIM_REG, 0);
for (irq = NR_IXP2000_IRQS; irq < NR_IXDP2X01_IRQS; irq++) {
if (irq & valid_irq_mask) {
set_irq_chip(irq, &ixdp2x01_irq_chip);
set_irq_handler(irq, do_level_IRQ);
set_irq_flags(irq, IRQF_VALID);
} else {
set_irq_flags(irq, 0);
}
}
/* Hook into PCI interrupts */
set_irq_chained_handler(IRQ_IXP2000_PCIB, &ixdp2x01_irq_handler);
}
void __init ixdp2800_init_irq(void)
{
int i = 0;
*IXDP2800_CPLD_INT_MASK = 0; /* turn off interrupts */
/* initialize chip specific interrupts */
ixp2000_init_irq();
/*
* Slave only has NIC routed to it, so we don't init everything
*/
if (npu_is_master()) {
for(i = NR_IXP2000_IRQS; i < NR_IXDP2800_IRQS; i++) {
irq_desc[i].valid = 1;
irq_desc[i].probe_ok = 0;
irq_desc[i].mask_ack = ext_irq_mask;
irq_desc[i].mask = ext_irq_mask;
irq_desc[i].unmask = ext_irq_unmask;
}
/* init PCI interrupts */
setup_arm_irq(IRQ_IXP2000_PCIB, &ext_irq);
}
}
/*
* We only do anything if we are the master NPU on the board.
* The slave NPU only has the ethernet chip going directly to
* the PCIB interrupt input.
*/
void __init ixdp2400_init_irq(void)
{
int i = 0;
/* initialize chip specific interrupts */
ixp2000_init_irq();
if (npu_is_master()) {
/* Disable all CPLD interrupts */
acquire_slowport(&slowport_cpld_cfg);
*IXDP2400_CPLD_INT_MASK = 0xff;
release_slowport();
for(i = NR_IXP2000_IRQS; i < NR_IXDP2400_IRQS; i++) {
irq_desc[i].valid = 1;
irq_desc[i].probe_ok = 0;
irq_desc[i].mask_ack = ext_irq_mask;
irq_desc[i].mask = ext_irq_mask;
irq_desc[i].unmask = ext_irq_unmask;
}
/* Hook into PCI interrupts */
setup_arm_irq(IRQ_IXP2000_PCIB, &ext_irq);
}
}
void __init ixdp2x00_init_irq(volatile unsigned long *stat_reg, volatile unsigned long *mask_reg, unsigned long nr_of_irqs)
{
unsigned int irq;
ixp2000_init_irq();
if (!ixdp2x00_master_npu())
return;
board_irq_stat = stat_reg;
board_irq_mask = mask_reg;
board_irq_count = nr_of_irqs;
*board_irq_mask = 0xffffffff;
for(irq = IXP2000_BOARD_IRQ(0); irq < IXP2000_BOARD_IRQ(board_irq_count); irq++) {
irq_set_chip_and_handler(irq, &ixdp2x00_cpld_irq_chip,
handle_level_irq);
set_irq_flags(irq, IRQF_VALID);
}
/* Hook into PCI interrupt */
irq_set_chained_handler(IRQ_IXP2000_PCIB, ixdp2x00_irq_handler);
}
