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/*
* QEMU Grackle PCI host (heathrow OldWorld PowerMac)
*
* Copyright (c) 2006-2007 Fabrice Bellard
* Copyright (c) 2007 Jocelyn Mayer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "sysbus.h"
#include "ppc_mac.h"
#include "pci.h"
/* debug Grackle */
//#define DEBUG_GRACKLE
#ifdef DEBUG_GRACKLE
#define GRACKLE_DPRINTF(fmt, ...) \
do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
#else
#define GRACKLE_DPRINTF(fmt, ...)
#endif
typedef target_phys_addr_t pci_addr_t;
#include "pci_host.h"
typedef struct GrackleState {
SysBusDevice busdev;
PCIHostState host_state;
} GrackleState;
static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
GrackleState *s = opaque;
GRACKLE_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr,
val);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
s->host_state.config_reg = val;
}
static uint32_t pci_grackle_config_readl (void *opaque, target_phys_addr_t addr)
{
GrackleState *s = opaque;
uint32_t val;
val = s->host_state.config_reg;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
GRACKLE_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr,
val);
return val;
}
static CPUWriteMemoryFunc * const pci_grackle_config_write[] = {
&pci_grackle_config_writel,
&pci_grackle_config_writel,
&pci_grackle_config_writel,
};
static CPUReadMemoryFunc * const pci_grackle_config_read[] = {
&pci_grackle_config_readl,
&pci_grackle_config_readl,
&pci_grackle_config_readl,
};
static CPUWriteMemoryFunc * const pci_grackle_write[] = {
&pci_host_data_writeb,
&pci_host_data_writew,
&pci_host_data_writel,
};
static CPUReadMemoryFunc * const pci_grackle_read[] = {
&pci_host_data_readb,
&pci_host_data_readw,
&pci_host_data_readl,
};
/* Don't know if this matches real hardware, but it agrees with OHW. */
static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_grackle_set_irq(qemu_irq *pic, int irq_num, int level)
{
GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
qemu_set_irq(pic[irq_num + 0x15], level);
}
static void pci_grackle_save(QEMUFile* f, void *opaque)
{
PCIDevice *d = opaque;
pci_device_save(d, f);
}
static int pci_grackle_load(QEMUFile* f, void *opaque, int version_id)
{
PCIDevice *d = opaque;
if (version_id != 1)
return -EINVAL;
return pci_device_load(d, f);
}
static void pci_grackle_reset(void *opaque)
{
}
PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
{
DeviceState *dev;
SysBusDevice *s;
GrackleState *d;
dev = qdev_create(NULL, "grackle");
qdev_init(dev);
s = sysbus_from_qdev(dev);
d = FROM_SYSBUS(GrackleState, s);
d->host_state.bus = pci_register_bus(NULL, "pci",
pci_grackle_set_irq,
pci_grackle_map_irq,
pic, 0, 4);
pci_create_simple(d->host_state.bus, 0, "grackle");
sysbus_mmio_map(s, 0, base);
sysbus_mmio_map(s, 1, base + 0x00200000);
return d->host_state.bus;
}
static int pci_grackle_init_device(SysBusDevice *dev)
{
GrackleState *s;
int pci_mem_config, pci_mem_data;
s = FROM_SYSBUS(GrackleState, dev);
pci_mem_config = cpu_register_io_memory(pci_grackle_config_read,
pci_grackle_config_write, s);
pci_mem_data = cpu_register_io_memory(pci_grackle_read,
pci_grackle_write,
&s->host_state);
sysbus_init_mmio(dev, 0x1000, pci_mem_config);
sysbus_init_mmio(dev, 0x1000, pci_mem_data);
register_savevm("grackle", 0, 1, pci_grackle_save, pci_grackle_load,
&s->host_state);
qemu_register_reset(pci_grackle_reset, &s->host_state);
pci_grackle_reset(&s->host_state);
return 0;
}
static int pci_dec_21154_init_device(SysBusDevice *dev)
{
GrackleState *s;
int pci_mem_config, pci_mem_data;
s = FROM_SYSBUS(GrackleState, dev);
pci_mem_config = cpu_register_io_memory(pci_grackle_config_read,
pci_grackle_config_write, s);
pci_mem_data = cpu_register_io_memory(pci_grackle_read,
pci_grackle_write,
&s->host_state);
sysbus_init_mmio(dev, 0x1000, pci_mem_config);
sysbus_init_mmio(dev, 0x1000, pci_mem_data);
return 0;
}
static int grackle_pci_host_init(PCIDevice *d)
{
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106);
d->config[0x08] = 0x00; // revision
d->config[0x09] = 0x01;
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
return 0;
}
static int dec_21154_pci_host_init(PCIDevice *d)
{
/* PCI2PCI bridge same values as PearPC - check this */
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
d->config[0x08] = 0x02; // revision
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_BRIDGE; // header_type
d->config[0x18] = 0x0; // primary_bus
d->config[0x19] = 0x1; // secondary_bus
d->config[0x1a] = 0x1; // subordinate_bus
d->config[0x1c] = 0x10; // io_base
d->config[0x1d] = 0x20; // io_limit
d->config[0x20] = 0x80; // memory_base
d->config[0x21] = 0x80;
d->config[0x22] = 0x90; // memory_limit
d->config[0x23] = 0x80;
d->config[0x24] = 0x00; // prefetchable_memory_base
d->config[0x25] = 0x84;
d->config[0x26] = 0x00; // prefetchable_memory_limit
d->config[0x27] = 0x85;
return 0;
}
static PCIDeviceInfo grackle_pci_host_info = {
.qdev.name = "grackle",
.qdev.size = sizeof(PCIDevice),
.init = grackle_pci_host_init,
};
static PCIDeviceInfo dec_21154_pci_host_info = {
.qdev.name = "DEC 21154",
.qdev.size = sizeof(PCIDevice),
.init = dec_21154_pci_host_init,
};
static void grackle_register_devices(void)
{
sysbus_register_dev("grackle", sizeof(GrackleState),
pci_grackle_init_device);
pci_qdev_register(&grackle_pci_host_info);
sysbus_register_dev("DEC 21154", sizeof(GrackleState),
pci_dec_21154_init_device);
pci_qdev_register(&dec_21154_pci_host_info);
}
device_init(grackle_register_devices)
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