static void __init ixdp2800_pci_postinit(void)
{
if (!ixdp2x00_master_npu()) {
ixdp2x00_slave_pci_postinit();
ixdp2800_slave_signal_bus_scan_completion();
}
}
void __init ixdp2800_pci_preinit(void)
{
printk("ixdp2x00_pci_preinit called\n");
*IXP2000_PCI_ADDR_EXT = 0x0001e000;
if (!ixdp2x00_master_npu())
ixdp2800_slave_disable_pci_master();
*IXP2000_PCI_SRAM_BASE_ADDR_MASK = (0x2000000 - 1) & ~0x3ffff;
*IXP2000_PCI_DRAM_BASE_ADDR_MASK = (0x40000000 - 1) & ~0xfffff;
ixp2000_pci_preinit();
if (ixdp2x00_master_npu()) {
/*
* Wait until the slave set its SRAM/SDRAM BAR sizes
* correctly before we proceed to scan and enumerate
* the bus.
*/
ixdp2800_master_wait_for_slave();
/*
* We configure the SDRAM BARs by hand because they
* are 1G and fall outside of the regular allocated
* PCI address space.
*/
*IXP2000_PCI_SDRAM_BAR = 0x00000008;
} else {
/*
* Wait for the master to complete scanning the bus
* and assigning resources before we proceed to scan
* the bus ourselves. Set pci=firmware to honor the
* master's resource assignment.
*/
ixdp2800_slave_wait_for_master_enable();
pcibios_setup("firmware");
}
}
static void ixdp2400_pci_postinit(void)
{
struct pci_dev *dev;
if (ixdp2x00_master_npu()) {
dev = pci_find_slot(1, IXDP2400_SLAVE_ENET_DEVFN);
pci_remove_bus_device(dev);
} else {
dev = pci_find_slot(1, IXDP2400_MASTER_ENET_DEVFN);
pci_remove_bus_device(dev);
ixdp2x00_slave_pci_postinit();
}
}
static int __init ixdp2400_pci_map_irq(const struct pci_dev *dev, u8 slot,
u8 pin)
{
if (ixdp2x00_master_npu()) {
/*
* Root bus devices. Slave NPU is only one with interrupt.
* Everything else, we just return -1 b/c nothing else
* on the root bus has interrupts.
*/
if(!dev->bus->self) {
if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN )
return IRQ_IXDP2400_INGRESS_NPU;
return -1;
}
/*
* Bridge behind the PMC slot.
* NOTE: Only INTA from the PMC slot is routed. VERY BAD.
*/
if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN &&
dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN &&
!dev->bus->parent->self->bus->parent)
return IRQ_IXDP2400_PMC;
/*
* Device behind the first bridge
*/
if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) {
switch(dev->devfn) {
case IXDP2400_MASTER_ENET_DEVFN:
return IRQ_IXDP2400_ENET;
case IXDP2400_MEDIA_DEVFN:
return IRQ_IXDP2400_MEDIA_PCI;
case IXDP2400_SWITCH_FABRIC_DEVFN:
return IRQ_IXDP2400_SF_PCI;
case IXDP2X00_PMC_DEVFN:
return IRQ_IXDP2400_PMC;
}
}
return -1;
} else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */
}
static int __init ixdp2800_pci_map_irq(const struct pci_dev *dev, u8 slot,
u8 pin)
{
if (ixdp2x00_master_npu()) {
/*
* Root bus devices. Slave NPU is only one with interrupt.
* Everything else, we just return -1 which is invalid.
*/
if(!dev->bus->self) {
if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN )
return IRQ_IXDP2800_INGRESS_NPU;
return -1;
}
/*
* Bridge behind the PMC slot.
*/
if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN &&
dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN &&
!dev->bus->parent->self->bus->parent)
return IRQ_IXDP2800_PMC;
/*
* Device behind the first bridge
*/
if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) {
switch(dev->devfn) {
case IXDP2X00_PMC_DEVFN:
return IRQ_IXDP2800_PMC;
case IXDP2800_MASTER_ENET_DEVFN:
return IRQ_IXDP2800_EGRESS_ENET;
case IXDP2800_SWITCH_FABRIC_DEVFN:
return IRQ_IXDP2800_FABRIC;
}
}
return -1;
} else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */
}
int __init ixdp2800_pci_init(void)
{
if (machine_is_ixdp2800()) {
struct pci_dev *dev;
pci_common_init(&ixdp2800_pci);
if (ixdp2x00_master_npu()) {
dev = pci_find_slot(1, IXDP2800_SLAVE_ENET_DEVFN);
pci_remove_bus_device(dev);
ixdp2800_master_enable_slave();
ixdp2800_master_wait_for_slave_bus_scan();
} else {
dev = pci_find_slot(1, IXDP2800_MASTER_ENET_DEVFN);
pci_remove_bus_device(dev);
}
}
return 0;
}
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);
}