*
* 2004-2005 (c) Tundra Semiconductor Corp.
* Author: Alex Bounine (alexandreb@tundra.com)
+ * Author: Roy Zang (tie-fei.zang@freescale.com)
+ * Add pci interrupt router host
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/tsi108.h>
+#include <asm/tsi108_pci.h>
#include <asm/tsi108_irq.h>
#include <asm/prom.h>
((((bus)<<16) | ((devfunc)<<8) | (offset & 0xfc)) + tsi108_pci_cfg_base)
u32 tsi108_pci_cfg_base;
+static u32 tsi108_pci_cfg_phys;
u32 tsi108_csr_vir_base;
+static struct device_node *pci_irq_node;
+static struct irq_host *pci_irq_host;
extern u32 get_vir_csrbase(void);
extern u32 tsi108_read_reg(u32 reg_offset);
void tsi108_clear_pci_cfg_error(void)
{
- tsi108_clear_pci_error(TSI108_PCI_CFG_BASE_PHYS);
+ tsi108_clear_pci_error(tsi108_pci_cfg_phys);
}
static struct pci_ops tsi108_direct_pci_ops = {
tsi108_direct_write_config
};
-int __init tsi108_setup_pci(struct device_node *dev)
+int __init tsi108_setup_pci(struct device_node *dev, u32 cfg_phys, int primary)
{
int len;
struct pci_controller *hose;
struct resource rsrc;
const int *bus_range;
- int primary = 0, has_address = 0;
+ int has_address = 0;
/* PCI Config mapping */
- tsi108_pci_cfg_base = (u32)ioremap(TSI108_PCI_CFG_BASE_PHYS,
- TSI108_PCI_CFG_SIZE);
+ tsi108_pci_cfg_base = (u32)ioremap(cfg_phys, TSI108_PCI_CFG_SIZE);
+ tsi108_pci_cfg_phys = cfg_phys;
DBG("TSI_PCI: %s tsi108_pci_cfg_base=0x%x\n", __FUNCTION__,
tsi108_pci_cfg_base);
has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
/* Get bus range if any */
- bus_range = get_property(dev, "bus-range", &len);
+ bus_range = of_get_property(dev, "bus-range", &len);
if (bus_range == NULL || len < 2 * sizeof(int)) {
printk(KERN_WARNING "Can't get bus-range for %s, assume"
" bus 0\n", dev->full_name);
.unmask = tsi108_pci_irq_enable,
};
+static int pci_irq_host_xlate(struct irq_host *h, struct device_node *ct,
+ u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq, unsigned int *out_flags)
+{
+ *out_hwirq = intspec[0];
+ *out_flags = IRQ_TYPE_LEVEL_HIGH;
+ return 0;
+}
+
+static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
+ irq_hw_number_t hw)
+{ unsigned int irq;
+ DBG("%s(%d, 0x%lx)\n", __FUNCTION__, virq, hw);
+ if ((virq >= 1) && (virq <= 4)){
+ irq = virq + IRQ_PCI_INTAD_BASE - 1;
+ get_irq_desc(irq)->status |= IRQ_LEVEL;
+ set_irq_chip(irq, &tsi108_pci_irq);
+ }
+ return 0;
+}
+
+static int pci_irq_host_match(struct irq_host *h, struct device_node *node)
+{
+ return pci_irq_node == node;
+}
+
+static struct irq_host_ops pci_irq_host_ops = {
+ .match = pci_irq_host_match,
+ .map = pci_irq_host_map,
+ .xlate = pci_irq_host_xlate,
+};
+
/*
* Exported functions
*/
* to the MPIC.
*/
-void __init tsi108_pci_int_init(void)
+void __init tsi108_pci_int_init(struct device_node *node)
{
- u_int i;
-
DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
- for (i = 0; i < NUM_PCI_IRQS; i++) {
- irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq;
- irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
+ pci_irq_node = of_node_get(node);
+ pci_irq_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &pci_irq_host_ops, 0);
+ if (pci_irq_host == NULL) {
+ printk(KERN_ERR "pci_irq_host: failed to allocate irq host !\n");
+ return;
}
init_pci_source();