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path: root/arch/powerpc/sysdev/tsi108_pci.c
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Diffstat (limited to 'arch/powerpc/sysdev/tsi108_pci.c')
-rw-r--r--arch/powerpc/sysdev/tsi108_pci.c102
1 files changed, 46 insertions, 56 deletions
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index ae249c6bbbc..188012c58f7 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -24,7 +24,6 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/pci.h>
-#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
@@ -35,6 +34,7 @@
#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>
@@ -49,9 +49,9 @@
((((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;
+static struct irq_domain *pci_irq_host;
extern u32 get_vir_csrbase(void);
extern u32 tsi108_read_reg(u32 reg_offset);
@@ -62,9 +62,10 @@ tsi108_direct_write_config(struct pci_bus *bus, unsigned int devfunc,
int offset, int len, u32 val)
{
volatile unsigned char *cfg_addr;
+ struct pci_controller *hose = pci_bus_to_host(bus);
if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(bus->number, devfunc))
+ if (ppc_md.pci_exclude_device(hose, bus->number, devfunc))
return PCIBIOS_DEVICE_NOT_FOUND;
cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number,
@@ -147,10 +148,11 @@ tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
int len, u32 * val)
{
volatile unsigned char *cfg_addr;
+ struct pci_controller *hose = pci_bus_to_host(bus);
u32 temp;
if (ppc_md.pci_exclude_device)
- if (ppc_md.pci_exclude_device(bus->number, devfn))
+ if (ppc_md.pci_exclude_device(hose, bus->number, devfn))
return PCIBIOS_DEVICE_NOT_FOUND;
cfg_addr = (unsigned char *)(tsi_mk_config_addr(bus->number,
@@ -185,46 +187,44 @@ tsi108_direct_read_config(struct pci_bus *bus, unsigned int devfn, int 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_read_config,
- tsi108_direct_write_config
+ .read = tsi108_direct_read_config,
+ .write = 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);
- DBG("TSI_PCI: %s tsi108_pci_cfg_base=0x%x\n", __FUNCTION__,
+ 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", __func__,
tsi108_pci_cfg_base);
/* Fetch host bridge registers address */
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);
}
- hose = pcibios_alloc_controller();
+ hose = pcibios_alloc_controller(dev);
if (!hose) {
printk("PCI Host bridge init failed\n");
return -ENOMEM;
}
- hose->arch_data = dev;
- hose->set_cfg_type = 1;
hose->first_busno = bus_range ? bus_range[0] : 0;
hose->last_busno = bus_range ? bus_range[1] : 0xff;
@@ -343,24 +343,9 @@ static inline unsigned int get_pci_source(void)
* Linux descriptor level callbacks
*/
-static void tsi108_pci_irq_enable(u_int irq)
+static void tsi108_pci_irq_unmask(struct irq_data *d)
{
- tsi108_pci_int_unmask(irq);
-}
-
-static void tsi108_pci_irq_disable(u_int irq)
-{
- tsi108_pci_int_mask(irq);
-}
-
-static void tsi108_pci_irq_ack(u_int irq)
-{
- tsi108_pci_int_mask(irq);
-}
-
-static void tsi108_pci_irq_end(u_int irq)
-{
- tsi108_pci_int_unmask(irq);
+ tsi108_pci_int_unmask(d->irq);
/* Enable interrupts from PCI block */
tsi108_write_reg(TSI108_PCI_OFFSET + TSI108_PCI_IRP_ENABLE,
@@ -370,20 +355,29 @@ static void tsi108_pci_irq_end(u_int irq)
mb();
}
+static void tsi108_pci_irq_mask(struct irq_data *d)
+{
+ tsi108_pci_int_mask(d->irq);
+}
+
+static void tsi108_pci_irq_ack(struct irq_data *d)
+{
+ tsi108_pci_int_mask(d->irq);
+}
+
/*
* Interrupt controller descriptor for cascaded PCI interrupt controller.
*/
static struct irq_chip tsi108_pci_irq = {
- .typename = "tsi108_PCI_int",
- .mask = tsi108_pci_irq_disable,
- .ack = tsi108_pci_irq_ack,
- .end = tsi108_pci_irq_end,
- .unmask = tsi108_pci_irq_enable,
+ .name = "tsi108_PCI_int",
+ .irq_mask = tsi108_pci_irq_mask,
+ .irq_ack = tsi108_pci_irq_ack,
+ .irq_unmask = tsi108_pci_irq_unmask,
};
-static int pci_irq_host_xlate(struct irq_host *h, struct device_node *ct,
- u32 *intspec, unsigned int intsize,
+static int pci_irq_host_xlate(struct irq_domain *h, struct device_node *ct,
+ const u32 *intspec, unsigned int intsize,
irq_hw_number_t *out_hwirq, unsigned int *out_flags)
{
*out_hwirq = intspec[0];
@@ -391,25 +385,19 @@ static int pci_irq_host_xlate(struct irq_host *h, struct device_node *ct,
return 0;
}
-static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
+static int pci_irq_host_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{ unsigned int irq;
- DBG("%s(%d, 0x%lx)\n", __FUNCTION__, virq, hw);
+ DBG("%s(%d, 0x%lx)\n", __func__, 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);
+ irq_set_status_flags(irq, IRQ_LEVEL);
+ irq_set_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,
+static struct irq_domain_ops pci_irq_domain_ops = {
.map = pci_irq_host_map,
.xlate = pci_irq_host_xlate,
};
@@ -431,10 +419,9 @@ void __init tsi108_pci_int_init(struct device_node *node)
{
DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
- pci_irq_node = of_node_get(node);
- pci_irq_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &pci_irq_host_ops, 0);
+ pci_irq_host = irq_domain_add_legacy_isa(node, &pci_irq_domain_ops, NULL);
if (pci_irq_host == NULL) {
- printk(KERN_ERR "pci_irq_host: failed to allocate irq host !\n");
+ printk(KERN_ERR "pci_irq_host: failed to allocate irq domain!\n");
return;
}
@@ -443,8 +430,11 @@ void __init tsi108_pci_int_init(struct device_node *node)
void tsi108_irq_cascade(unsigned int irq, struct irq_desc *desc)
{
+ struct irq_chip *chip = irq_desc_get_chip(desc);
unsigned int cascade_irq = get_pci_source();
+
if (cascade_irq != NO_IRQ)
generic_handle_irq(cascade_irq);
- desc->chip->eoi(irq);
+
+ chip->irq_eoi(&desc->irq_data);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 15:01:59 +0000