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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 "hw.h"
#include "ppc_mac.h"
#include "pci.h"
typedef target_phys_addr_t pci_addr_t;
#include "pci_host.h"
typedef PCIHostState GrackleState;
static void pci_grackle_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
GrackleState *s = opaque;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
s->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->config_reg;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
return val;
}
static CPUWriteMemoryFunc *pci_grackle_config_write[] = {
&pci_grackle_config_writel,
&pci_grackle_config_writel,
&pci_grackle_config_writel,
};
static CPUReadMemoryFunc *pci_grackle_config_read[] = {
&pci_grackle_config_readl,
&pci_grackle_config_readl,
&pci_grackle_config_readl,
};
static CPUWriteMemoryFunc *pci_grackle_write[] = {
&pci_host_data_writeb,
&pci_host_data_writew,
&pci_host_data_writel,
};
static CPUReadMemoryFunc *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)
{
qemu_set_irq(pic[irq_num + 0x15], level);
}
PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
{
GrackleState *s;
PCIDevice *d;
int pci_mem_config, pci_mem_data;
s = qemu_mallocz(sizeof(GrackleState));
s->bus = pci_register_bus(pci_grackle_set_irq, pci_grackle_map_irq,
pic, 0, 4);
pci_mem_config = cpu_register_io_memory(0, pci_grackle_config_read,
pci_grackle_config_write, s);
pci_mem_data = cpu_register_io_memory(0, pci_grackle_read,
pci_grackle_write, s);
cpu_register_physical_memory(base, 0x1000, pci_mem_config);
cpu_register_physical_memory(base + 0x00200000, 0x1000, pci_mem_data);
d = pci_register_device(s->bus, "Grackle host bridge", sizeof(PCIDevice),
0, NULL, NULL);
d->config[0x00] = 0x57; // vendor_id
d->config[0x01] = 0x10;
d->config[0x02] = 0x02; // device_id
d->config[0x03] = 0x00;
d->config[0x08] = 0x00; // revision
d->config[0x09] = 0x01;
d->config[0x0a] = 0x00; // class_sub = host
d->config[0x0b] = 0x06; // class_base = PCI_bridge
d->config[0x0e] = 0x00; // header_type
#if 0
/* PCI2PCI bridge same values as PearPC - check this */
d->config[0x00] = 0x11; // vendor_id
d->config[0x01] = 0x10;
d->config[0x02] = 0x26; // device_id
d->config[0x03] = 0x00;
d->config[0x08] = 0x02; // revision
d->config[0x0a] = 0x04; // class_sub = pci2pci
d->config[0x0b] = 0x06; // class_base = PCI_bridge
d->config[0x0e] = 0x01; // 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;
#endif
return s->bus;
}
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