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/*
* ARM Versatile/PB PCI host controller
*
* Copyright (c) 2006-2009 CodeSourcery.
* Written by Paul Brook
*
* This code is licensed under the LGPL.
*/
#include "hw/sysbus.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_bus.h"
#include "hw/pci/pci_host.h"
#include "exec/address-spaces.h"
typedef struct {
PCIHostState parent_obj;
qemu_irq irq[4];
MemoryRegion mem_config;
MemoryRegion mem_config2;
MemoryRegion isa;
PCIBus pci_bus;
PCIDevice pci_dev;
/* Constant for life of device: */
int realview;
} PCIVPBState;
#define TYPE_VERSATILE_PCI "versatile_pci"
#define PCI_VPB(obj) \
OBJECT_CHECK(PCIVPBState, (obj), TYPE_VERSATILE_PCI)
#define TYPE_VERSATILE_PCI_HOST "versatile_pci_host"
#define PCI_VPB_HOST(obj) \
OBJECT_CHECK(PCIDevice, (obj), TYPE_VERSATILE_PCIHOST)
static inline uint32_t vpb_pci_config_addr(hwaddr addr)
{
return addr & 0xffffff;
}
static void pci_vpb_config_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
pci_data_write(opaque, vpb_pci_config_addr(addr), val, size);
}
static uint64_t pci_vpb_config_read(void *opaque, hwaddr addr,
unsigned size)
{
uint32_t val;
val = pci_data_read(opaque, vpb_pci_config_addr(addr), size);
return val;
}
static const MemoryRegionOps pci_vpb_config_ops = {
.read = pci_vpb_config_read,
.write = pci_vpb_config_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static int pci_vpb_map_irq(PCIDevice *d, int irq_num)
{
return irq_num;
}
static void pci_vpb_set_irq(void *opaque, int irq_num, int level)
{
qemu_irq *pic = opaque;
qemu_set_irq(pic[irq_num], level);
}
static void pci_vpb_init(Object *obj)
{
PCIHostState *h = PCI_HOST_BRIDGE(obj);
PCIVPBState *s = PCI_VPB(obj);
pci_bus_new_inplace(&s->pci_bus, DEVICE(obj), "pci",
get_system_memory(), get_system_io(),
PCI_DEVFN(11, 0), TYPE_PCI_BUS);
h->bus = &s->pci_bus;
object_initialize(&s->pci_dev, TYPE_VERSATILE_PCI_HOST);
qdev_set_parent_bus(DEVICE(&s->pci_dev), BUS(&s->pci_bus));
}
static void pci_vpb_realize(DeviceState *dev, Error **errp)
{
PCIVPBState *s = PCI_VPB(dev);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
int i;
for (i = 0; i < 4; i++) {
sysbus_init_irq(sbd, &s->irq[i]);
}
pci_bus_irqs(&s->pci_bus, pci_vpb_set_irq, pci_vpb_map_irq, s->irq, 4);
/* ??? Register memory space. */
/* Our memory regions are:
* 0 : PCI self config window
* 1 : PCI config window
* 2 : PCI IO window
*/
memory_region_init_io(&s->mem_config, &pci_vpb_config_ops, &s->pci_bus,
"pci-vpb-selfconfig", 0x1000000);
sysbus_init_mmio(sbd, &s->mem_config);
memory_region_init_io(&s->mem_config2, &pci_vpb_config_ops, &s->pci_bus,
"pci-vpb-config", 0x1000000);
sysbus_init_mmio(sbd, &s->mem_config2);
isa_mmio_setup(&s->isa, 0x0100000);
sysbus_init_mmio(sbd, &s->isa);
/* TODO Remove once realize propagates to child devices. */
object_property_set_bool(OBJECT(&s->pci_dev), true, "realized", errp);
}
static int versatile_pci_host_init(PCIDevice *d)
{
pci_set_word(d->config + PCI_STATUS,
PCI_STATUS_66MHZ | PCI_STATUS_DEVSEL_MEDIUM);
pci_set_byte(d->config + PCI_LATENCY_TIMER, 0x10);
return 0;
}
static void versatile_pci_host_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->init = versatile_pci_host_init;
k->vendor_id = PCI_VENDOR_ID_XILINX;
k->device_id = PCI_DEVICE_ID_XILINX_XC2VP30;
k->class_id = PCI_CLASS_PROCESSOR_CO;
}
static const TypeInfo versatile_pci_host_info = {
.name = TYPE_VERSATILE_PCI_HOST,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = versatile_pci_host_class_init,
};
static void pci_vpb_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = pci_vpb_realize;
}
static const TypeInfo pci_vpb_info = {
.name = TYPE_VERSATILE_PCI,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(PCIVPBState),
.instance_init = pci_vpb_init,
.class_init = pci_vpb_class_init,
};
static void pci_realview_init(Object *obj)
{
PCIVPBState *s = PCI_VPB(obj);
s->realview = 1;
}
static const TypeInfo pci_realview_info = {
.name = "realview_pci",
.parent = TYPE_VERSATILE_PCI,
.instance_init = pci_realview_init,
};
static void versatile_pci_register_types(void)
{
type_register_static(&pci_vpb_info);
type_register_static(&pci_realview_info);
type_register_static(&versatile_pci_host_info);
}
type_init(versatile_pci_register_types)
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