/* * QEMU Uninorth PCI host (for all Mac99 and newer machines) * * Copyright (c) 2006 Fabrice Bellard * * 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 UNINState; static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr, uint32_t val) { UNINState *s = opaque; int i; #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif for (i = 11; i < 32; i++) { if ((val & (1 << i)) != 0) break; } #if 0 s->config_reg = 0x80000000 | (1 << 16) | (val & 0x7FC) | (i << 11); #else s->config_reg = 0x80000000 | (0 << 16) | (val & 0x7FC) | (i << 11); #endif } static uint32_t pci_unin_main_config_readl (void *opaque, target_phys_addr_t addr) { UNINState *s = opaque; uint32_t val; int devfn; devfn = (s->config_reg >> 8) & 0xFF; val = (1 << (devfn >> 3)) | ((devfn & 0x07) << 8) | (s->config_reg & 0xFC); #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif return val; } static CPUWriteMemoryFunc *pci_unin_main_config_write[] = { &pci_unin_main_config_writel, &pci_unin_main_config_writel, &pci_unin_main_config_writel, }; static CPUReadMemoryFunc *pci_unin_main_config_read[] = { &pci_unin_main_config_readl, &pci_unin_main_config_readl, &pci_unin_main_config_readl, }; static CPUWriteMemoryFunc *pci_unin_main_write[] = { &pci_host_data_writeb, &pci_host_data_writew, &pci_host_data_writel, }; static CPUReadMemoryFunc *pci_unin_main_read[] = { &pci_host_data_readb, &pci_host_data_readw, &pci_host_data_readl, }; #if 0 static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr, uint32_t val) { UNINState *s = opaque; #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif s->config_reg = 0x80000000 | (val & ~0x00000001); } static uint32_t pci_unin_config_readl (void *opaque, target_phys_addr_t addr) { UNINState *s = opaque; uint32_t val; val = (s->config_reg | 0x00000001) & ~0x80000000; #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif return val; } static CPUWriteMemoryFunc *pci_unin_config_write[] = { &pci_unin_config_writel, &pci_unin_config_writel, &pci_unin_config_writel, }; static CPUReadMemoryFunc *pci_unin_config_read[] = { &pci_unin_config_readl, &pci_unin_config_readl, &pci_unin_config_readl, }; static CPUWriteMemoryFunc *pci_unin_write[] = { &pci_host_pci_writeb, &pci_host_pci_writew, &pci_host_pci_writel, }; static CPUReadMemoryFunc *pci_unin_read[] = { &pci_host_pci_readb, &pci_host_pci_readw, &pci_host_pci_readl, }; #endif /* Don't know if this matches real hardware, but it agrees with OHW. */ static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num) { return (irq_num + (pci_dev->devfn >> 3)) & 3; } static void pci_unin_set_irq(qemu_irq *pic, int irq_num, int level) { qemu_set_irq(pic[irq_num + 8], level); } PCIBus *pci_pmac_init(qemu_irq *pic) { UNINState *s; PCIDevice *d; int pci_mem_config, pci_mem_data; /* Use values found on a real PowerMac */ /* Uninorth main bus */ s = qemu_mallocz(sizeof(UNINState)); s->bus = pci_register_bus(pci_unin_set_irq, pci_unin_map_irq, pic, 11 << 3, 4); pci_mem_config = cpu_register_io_memory(0, pci_unin_main_config_read, pci_unin_main_config_write, s); pci_mem_data = cpu_register_io_memory(0, pci_unin_main_read, pci_unin_main_write, s); cpu_register_physical_memory(0xf2800000, 0x1000, pci_mem_config); cpu_register_physical_memory(0xf2c00000, 0x1000, pci_mem_data); d = pci_register_device(s->bus, "Uni-north main", sizeof(PCIDevice), 11 << 3, NULL, NULL); pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI); d->config[0x08] = 0x00; // revision d->config[0x0A] = 0x00; // class_sub = pci host d->config[0x0B] = 0x06; // class_base = PCI_bridge d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[0x0E] = 0x00; // header_type d->config[0x34] = 0x00; // capabilities_pointer #if 0 // XXX: not activated as PPC BIOS doesn't handle multiple buses properly /* pci-to-pci bridge */ d = pci_register_device("Uni-north bridge", sizeof(PCIDevice), 0, 13 << 3, NULL, NULL); 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] = 0x05; // revision d->config[0x0A] = 0x04; // class_sub = pci2pci d->config[0x0B] = 0x06; // class_base = PCI_bridge d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x20; // latency_timer d->config[0x0E] = 0x01; // header_type d->config[0x18] = 0x01; // primary_bus d->config[0x19] = 0x02; // secondary_bus d->config[0x1A] = 0x02; // subordinate_bus d->config[0x1B] = 0x20; // secondary_latency_timer d->config[0x1C] = 0x11; // io_base d->config[0x1D] = 0x01; // io_limit d->config[0x20] = 0x00; // memory_base d->config[0x21] = 0x80; d->config[0x22] = 0x00; // memory_limit d->config[0x23] = 0x80; d->config[0x24] = 0x01; // prefetchable_memory_base d->config[0x25] = 0x80; d->config[0x26] = 0xF1; // prefectchable_memory_limit d->config[0x27] = 0x7F; // d->config[0x34] = 0xdc // capabilities_pointer #endif #if 0 // XXX: not needed for now /* Uninorth AGP bus */ s = &pci_bridge[1]; pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read, pci_unin_config_write, s); pci_mem_data = cpu_register_io_memory(0, pci_unin_read, pci_unin_write, s); cpu_register_physical_memory(0xf0800000, 0x1000, pci_mem_config); cpu_register_physical_memory(0xf0c00000, 0x1000, pci_mem_data); d = pci_register_device("Uni-north AGP", sizeof(PCIDevice), 0, 11 << 3, NULL, NULL); pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP); d->config[0x08] = 0x00; // revision d->config[0x0A] = 0x00; // class_sub = pci host d->config[0x0B] = 0x06; // class_base = PCI_bridge d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[0x0E] = 0x00; // header_type // d->config[0x34] = 0x80; // capabilities_pointer #endif #if 0 // XXX: not needed for now /* Uninorth internal bus */ s = &pci_bridge[2]; pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read, pci_unin_config_write, s); pci_mem_data = cpu_register_io_memory(0, pci_unin_read, pci_unin_write, s); cpu_register_physical_memory(0xf4800000, 0x1000, pci_mem_config); cpu_register_physical_memory(0xf4c00000, 0x1000, pci_mem_data); d = pci_register_device("Uni-north internal", sizeof(PCIDevice), 3, 11 << 3, NULL, NULL); pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE); pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI); d->config[0x08] = 0x00; // revision d->config[0x0A] = 0x00; // class_sub = pci host d->config[0x0B] = 0x06; // class_base = PCI_bridge d->config[0x0C] = 0x08; // cache_line_size d->config[0x0D] = 0x10; // latency_timer d->config[0x0E] = 0x00; // header_type d->config[0x34] = 0x00; // capabilities_pointer #endif return s->bus; }