2 * SuperH on-chip PCIC emulation.
4 * Copyright (c) 2008 Takashi YOSHII
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
30 typedef struct SHPCIState {
41 static void sh_pci_reg_write (void *p, target_phys_addr_t addr, uint32_t val)
46 cpu_to_le32w((uint32_t*)(pcic->dev->config + addr), val);
52 pcic->mbr = val & 0xff000001;
55 if ((val & 0xfffc0000) != (pcic->iobr & 0xfffc0000)) {
56 cpu_register_physical_memory(pcic->iobr & 0xfffc0000, 0x40000,
58 pcic->iobr = val & 0xfffc0001;
59 isa_mmio_init(pcic->iobr & 0xfffc0000, 0x40000);
63 pci_data_write(pcic->bus, pcic->par, val, 4);
68 static uint32_t sh_pci_reg_read (void *p, target_phys_addr_t addr)
73 return le32_to_cpup((uint32_t*)(pcic->dev->config + addr));
81 return pci_data_read(pcic->bus, pcic->par, 4);
87 CPUReadMemoryFunc * const r[3];
88 CPUWriteMemoryFunc * const w[3];
91 static MemOp sh_pci_reg = {
92 { NULL, NULL, sh_pci_reg_read },
93 { NULL, NULL, sh_pci_reg_write },
96 static int sh_pci_map_irq(PCIDevice *d, int irq_num)
98 return (d->devfn >> 3);
101 static void sh_pci_set_irq(void *opaque, int irq_num, int level)
103 qemu_irq *pic = opaque;
105 qemu_set_irq(pic[irq_num], level);
108 static void sh_pci_map(SysBusDevice *dev, target_phys_addr_t base)
110 SHPCIState *s = FROM_SYSBUS(SHPCIState, dev);
112 cpu_register_physical_memory(P4ADDR(base), 0x224, s->memconfig);
113 cpu_register_physical_memory(A7ADDR(base), 0x224, s->memconfig);
115 s->iobr = 0xfe240000;
116 isa_mmio_init(s->iobr, 0x40000);
119 static int sh_pci_init_device(SysBusDevice *dev)
124 s = FROM_SYSBUS(SHPCIState, dev);
125 for (i = 0; i < 4; i++) {
126 sysbus_init_irq(dev, &s->irq[i]);
128 s->bus = pci_register_bus(&s->busdev.qdev, "pci",
129 sh_pci_set_irq, sh_pci_map_irq,
130 s->irq, PCI_DEVFN(0, 0), 4);
131 s->memconfig = cpu_register_io_memory(sh_pci_reg.r, sh_pci_reg.w,
132 s, DEVICE_NATIVE_ENDIAN);
133 sysbus_init_mmio_cb(dev, 0x224, sh_pci_map);
134 s->dev = pci_create_simple(s->bus, PCI_DEVFN(0, 0), "sh_pci_host");
138 static int sh_pci_host_init(PCIDevice *d)
140 pci_set_word(d->config + PCI_COMMAND, PCI_COMMAND_WAIT);
141 pci_set_word(d->config + PCI_STATUS, PCI_STATUS_CAP_LIST |
142 PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM);
146 static PCIDeviceInfo sh_pci_host_info = {
147 .qdev.name = "sh_pci_host",
148 .qdev.size = sizeof(PCIDevice),
149 .init = sh_pci_host_init,
150 .vendor_id = PCI_VENDOR_ID_HITACHI,
151 .device_id = PCI_DEVICE_ID_HITACHI_SH7751R,
154 static void sh_pci_register_devices(void)
156 sysbus_register_dev("sh_pci", sizeof(SHPCIState),
158 pci_qdev_register(&sh_pci_host_info);
161 device_init(sh_pci_register_devices)