/* * Marvell Discovery II MV64361 System Controller for * QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator * * Copyright (c) 2018-2020 BALATON Zoltan * * This work is licensed under the GNU GPL license version 2 or later. * */ #include "qemu/osdep.h" #include "qemu/units.h" #include "qapi/error.h" #include "hw/sysbus.h" #include "hw/pci/pci_device.h" #include "hw/pci/pci_host.h" #include "hw/irq.h" #include "hw/intc/i8259.h" #include "hw/qdev-properties.h" #include "exec/address-spaces.h" #include "qemu/log.h" #include "qemu/error-report.h" #include "trace.h" #include "hw/pci-host/mv64361.h" #include "mv643xx.h" #define TYPE_MV64361_PCI_BRIDGE "mv64361-pcibridge" static void mv64361_pcibridge_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); k->vendor_id = PCI_VENDOR_ID_MARVELL; k->device_id = PCI_DEVICE_ID_MARVELL_MV6436X; k->class_id = PCI_CLASS_BRIDGE_HOST; /* * PCI-facing part of the host bridge, * not usable without the host-facing part */ dc->user_creatable = false; } static const TypeInfo mv64361_pcibridge_info = { .name = TYPE_MV64361_PCI_BRIDGE, .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(PCIDevice), .class_init = mv64361_pcibridge_class_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, }; #define TYPE_MV64361_PCI "mv64361-pcihost" OBJECT_DECLARE_SIMPLE_TYPE(MV64361PCIState, MV64361_PCI) struct MV64361PCIState { PCIHostState parent_obj; uint8_t index; MemoryRegion io; MemoryRegion mem; qemu_irq irq[PCI_NUM_PINS]; uint32_t io_base; uint32_t io_size; uint32_t mem_base[4]; uint32_t mem_size[4]; uint64_t remap[5]; }; static void mv64361_pcihost_set_irq(void *opaque, int n, int level) { MV64361PCIState *s = opaque; qemu_set_irq(s->irq[n], level); } static void mv64361_pcihost_realize(DeviceState *dev, Error **errp) { MV64361PCIState *s = MV64361_PCI(dev); PCIHostState *h = PCI_HOST_BRIDGE(dev); char *name; name = g_strdup_printf("pci%d-io", s->index); memory_region_init(&s->io, OBJECT(dev), name, 0x10000); g_free(name); name = g_strdup_printf("pci%d-mem", s->index); memory_region_init(&s->mem, OBJECT(dev), name, 1ULL << 32); g_free(name); name = g_strdup_printf("pci.%d", s->index); h->bus = pci_register_root_bus(dev, name, mv64361_pcihost_set_irq, pci_swizzle_map_irq_fn, dev, &s->mem, &s->io, 0, 4, TYPE_PCI_BUS); g_free(name); pci_create_simple(h->bus, 0, TYPE_MV64361_PCI_BRIDGE); } static Property mv64361_pcihost_props[] = { DEFINE_PROP_UINT8("index", MV64361PCIState, index, 0), DEFINE_PROP_END_OF_LIST() }; static void mv64361_pcihost_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = mv64361_pcihost_realize; device_class_set_props(dc, mv64361_pcihost_props); set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); } static const TypeInfo mv64361_pcihost_info = { .name = TYPE_MV64361_PCI, .parent = TYPE_PCI_HOST_BRIDGE, .instance_size = sizeof(MV64361PCIState), .class_init = mv64361_pcihost_class_init, }; static void mv64361_pci_register_types(void) { type_register_static(&mv64361_pcihost_info); type_register_static(&mv64361_pcibridge_info); } type_init(mv64361_pci_register_types) OBJECT_DECLARE_SIMPLE_TYPE(MV64361State, MV64361) struct MV64361State { SysBusDevice parent_obj; MemoryRegion regs; MV64361PCIState pci[2]; MemoryRegion cpu_win[19]; qemu_irq cpu_irq; /* registers state */ uint32_t cpu_conf; uint32_t regs_base; uint32_t base_addr_enable; uint64_t main_int_cr; uint64_t cpu0_int_mask; uint32_t gpp_io; uint32_t gpp_level; uint32_t gpp_value; uint32_t gpp_int_cr; uint32_t gpp_int_mask; bool gpp_int_level; }; enum mv64361_irq_cause { MV64361_IRQ_DEVERR = 1, MV64361_IRQ_DMAERR = 2, MV64361_IRQ_CPUERR = 3, MV64361_IRQ_IDMA0 = 4, MV64361_IRQ_IDMA1 = 5, MV64361_IRQ_IDMA2 = 6, MV64361_IRQ_IDMA3 = 7, MV64361_IRQ_TIMER0 = 8, MV64361_IRQ_TIMER1 = 9, MV64361_IRQ_TIMER2 = 10, MV64361_IRQ_TIMER3 = 11, MV64361_IRQ_PCI0 = 12, MV64361_IRQ_SRAMERR = 13, MV64361_IRQ_GBEERR = 14, MV64361_IRQ_CERR = 15, MV64361_IRQ_PCI1 = 16, MV64361_IRQ_DRAMERR = 17, MV64361_IRQ_WDNMI = 18, MV64361_IRQ_WDE = 19, MV64361_IRQ_PCI0IN = 20, MV64361_IRQ_PCI0OUT = 21, MV64361_IRQ_PCI1IN = 22, MV64361_IRQ_PCI1OUT = 23, MV64361_IRQ_P1_GPP0_7 = 24, MV64361_IRQ_P1_GPP8_15 = 25, MV64361_IRQ_P1_GPP16_23 = 26, MV64361_IRQ_P1_GPP24_31 = 27, MV64361_IRQ_P1_CPU_DB = 28, /* 29-31: reserved */ MV64361_IRQ_GBE0 = 32, MV64361_IRQ_GBE1 = 33, MV64361_IRQ_GBE2 = 34, /* 35: reserved */ MV64361_IRQ_SDMA0 = 36, MV64361_IRQ_TWSI = 37, MV64361_IRQ_SDMA1 = 38, MV64361_IRQ_BRG = 39, MV64361_IRQ_MPSC0 = 40, MV64361_IRQ_MPSC1 = 41, MV64361_IRQ_G0RX = 42, MV64361_IRQ_G0TX = 43, MV64361_IRQ_G0MISC = 44, MV64361_IRQ_G1RX = 45, MV64361_IRQ_G1TX = 46, MV64361_IRQ_G1MISC = 47, MV64361_IRQ_G2RX = 48, MV64361_IRQ_G2TX = 49, MV64361_IRQ_G2MISC = 50, /* 51-55: reserved */ MV64361_IRQ_P0_GPP0_7 = 56, MV64361_IRQ_P0_GPP8_15 = 57, MV64361_IRQ_P0_GPP16_23 = 58, MV64361_IRQ_P0_GPP24_31 = 59, MV64361_IRQ_P0_CPU_DB = 60, /* 61-63: reserved */ }; PCIBus *mv64361_get_pci_bus(DeviceState *dev, int n) { MV64361State *mv = MV64361(dev); return PCI_HOST_BRIDGE(&mv->pci[n])->bus; } static void unmap_region(MemoryRegion *mr) { if (memory_region_is_mapped(mr)) { memory_region_del_subregion(get_system_memory(), mr); object_unparent(OBJECT(mr)); } } static void map_pci_region(MemoryRegion *mr, MemoryRegion *parent, struct Object *owner, const char *name, hwaddr poffs, uint64_t size, hwaddr moffs) { memory_region_init_alias(mr, owner, name, parent, poffs, size); memory_region_add_subregion(get_system_memory(), moffs, mr); trace_mv64361_region_map(name, poffs, size, moffs); } static void set_mem_windows(MV64361State *s, uint32_t val) { MV64361PCIState *p; MemoryRegion *mr; uint32_t mask; int i; val &= 0x1fffff; for (mask = 1, i = 0; i < 21; i++, mask <<= 1) { if ((val & mask) != (s->base_addr_enable & mask)) { trace_mv64361_region_enable(!(val & mask) ? "enable" : "disable", i); /* * 0-3 are SDRAM chip selects but we map all RAM directly * 4-7 are device chip selects (not sure what those are) * 8 is Boot device (ROM) chip select but we map that directly too */ if (i == 9) { p = &s->pci[0]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->io, OBJECT(s), "pci0-io-win", p->remap[4], (p->io_size + 1) << 16, (p->io_base & 0xfffff) << 16); } } else if (i == 10) { p = &s->pci[0]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem0-win", p->remap[0], (p->mem_size[0] + 1) << 16, (p->mem_base[0] & 0xfffff) << 16); } } else if (i == 11) { p = &s->pci[0]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem1-win", p->remap[1], (p->mem_size[1] + 1) << 16, (p->mem_base[1] & 0xfffff) << 16); } } else if (i == 12) { p = &s->pci[0]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem2-win", p->remap[2], (p->mem_size[2] + 1) << 16, (p->mem_base[2] & 0xfffff) << 16); } } else if (i == 13) { p = &s->pci[0]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem3-win", p->remap[3], (p->mem_size[3] + 1) << 16, (p->mem_base[3] & 0xfffff) << 16); } } else if (i == 14) { p = &s->pci[1]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->io, OBJECT(s), "pci1-io-win", p->remap[4], (p->io_size + 1) << 16, (p->io_base & 0xfffff) << 16); } } else if (i == 15) { p = &s->pci[1]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem0-win", p->remap[0], (p->mem_size[0] + 1) << 16, (p->mem_base[0] & 0xfffff) << 16); } } else if (i == 16) { p = &s->pci[1]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem1-win", p->remap[1], (p->mem_size[1] + 1) << 16, (p->mem_base[1] & 0xfffff) << 16); } } else if (i == 17) { p = &s->pci[1]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem2-win", p->remap[2], (p->mem_size[2] + 1) << 16, (p->mem_base[2] & 0xfffff) << 16); } } else if (i == 18) { p = &s->pci[1]; mr = &s->cpu_win[i]; unmap_region(mr); if (!(val & mask)) { map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem3-win", p->remap[3], (p->mem_size[3] + 1) << 16, (p->mem_base[3] & 0xfffff) << 16); } /* 19 is integrated SRAM */ } else if (i == 20) { mr = &s->regs; unmap_region(mr); if (!(val & mask)) { memory_region_add_subregion(get_system_memory(), (s->regs_base & 0xfffff) << 16, mr); } } } } s->base_addr_enable = val; } static void mv64361_update_irq(void *opaque, int n, int level) { MV64361State *s = opaque; uint64_t val = s->main_int_cr; if (level) { val |= BIT_ULL(n); } else { val &= ~BIT_ULL(n); } if ((s->main_int_cr & s->cpu0_int_mask) != (val & s->cpu0_int_mask)) { qemu_set_irq(s->cpu_irq, level); } s->main_int_cr = val; } static uint64_t mv64361_read(void *opaque, hwaddr addr, unsigned int size) { MV64361State *s = MV64361(opaque); uint32_t ret = 0; switch (addr) { case MV64340_CPU_CONFIG: ret = s->cpu_conf; break; case MV64340_PCI_0_IO_BASE_ADDR: ret = s->pci[0].io_base; break; case MV64340_PCI_0_IO_SIZE: ret = s->pci[0].io_size; break; case MV64340_PCI_0_IO_ADDR_REMAP: ret = s->pci[0].remap[4] >> 16; break; case MV64340_PCI_0_MEMORY0_BASE_ADDR: ret = s->pci[0].mem_base[0]; break; case MV64340_PCI_0_MEMORY0_SIZE: ret = s->pci[0].mem_size[0]; break; case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP: ret = (s->pci[0].remap[0] & 0xffff0000) >> 16; break; case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP: ret = s->pci[0].remap[0] >> 32; break; case MV64340_PCI_0_MEMORY1_BASE_ADDR: ret = s->pci[0].mem_base[1]; break; case MV64340_PCI_0_MEMORY1_SIZE: ret = s->pci[0].mem_size[1]; break; case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP: ret = (s->pci[0].remap[1] & 0xffff0000) >> 16; break; case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP: ret = s->pci[0].remap[1] >> 32; break; case MV64340_PCI_0_MEMORY2_BASE_ADDR: ret = s->pci[0].mem_base[2]; break; case MV64340_PCI_0_MEMORY2_SIZE: ret = s->pci[0].mem_size[2]; break; case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP: ret = (s->pci[0].remap[2] & 0xffff0000) >> 16; break; case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP: ret = s->pci[0].remap[2] >> 32; break; case MV64340_PCI_0_MEMORY3_BASE_ADDR: ret = s->pci[0].mem_base[3]; break; case MV64340_PCI_0_MEMORY3_SIZE: ret = s->pci[0].mem_size[3]; break; case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP: ret = (s->pci[0].remap[3] & 0xffff0000) >> 16; break; case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP: ret = s->pci[0].remap[3] >> 32; break; case MV64340_PCI_1_IO_BASE_ADDR: ret = s->pci[1].io_base; break; case MV64340_PCI_1_IO_SIZE: ret = s->pci[1].io_size; break; case MV64340_PCI_1_IO_ADDR_REMAP: ret = s->pci[1].remap[4] >> 16; break; case MV64340_PCI_1_MEMORY0_BASE_ADDR: ret = s->pci[1].mem_base[0]; break; case MV64340_PCI_1_MEMORY0_SIZE: ret = s->pci[1].mem_size[0]; break; case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP: ret = (s->pci[1].remap[0] & 0xffff0000) >> 16; break; case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP: ret = s->pci[1].remap[0] >> 32; break; case MV64340_PCI_1_MEMORY1_BASE_ADDR: ret = s->pci[1].mem_base[1]; break; case MV64340_PCI_1_MEMORY1_SIZE: ret = s->pci[1].mem_size[1]; break; case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP: ret = (s->pci[1].remap[1] & 0xffff0000) >> 16; break; case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP: ret = s->pci[1].remap[1] >> 32; break; case MV64340_PCI_1_MEMORY2_BASE_ADDR: ret = s->pci[1].mem_base[2]; break; case MV64340_PCI_1_MEMORY2_SIZE: ret = s->pci[1].mem_size[2]; break; case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP: ret = (s->pci[1].remap[2] & 0xffff0000) >> 16; break; case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP: ret = s->pci[1].remap[2] >> 32; break; case MV64340_PCI_1_MEMORY3_BASE_ADDR: ret = s->pci[1].mem_base[3]; break; case MV64340_PCI_1_MEMORY3_SIZE: ret = s->pci[1].mem_size[3]; break; case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP: ret = (s->pci[1].remap[3] & 0xffff0000) >> 16; break; case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP: ret = s->pci[1].remap[3] >> 32; break; case MV64340_INTERNAL_SPACE_BASE_ADDR: ret = s->regs_base; break; case MV64340_BASE_ADDR_ENABLE: ret = s->base_addr_enable; break; case MV64340_PCI_0_CONFIG_ADDR: ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]), 0, size); break; case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ... MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3: ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[0]), addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, size); break; case MV64340_PCI_1_CONFIG_ADDR: ret = pci_host_conf_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]), 0, size); break; case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ... MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3: ret = pci_host_data_le_ops.read(PCI_HOST_BRIDGE(&s->pci[1]), addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, size); break; case MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG: /* FIXME: Should this be sent via the PCI bus somehow? */ if (s->gpp_int_level && (s->gpp_value & BIT(31))) { ret = pic_read_irq(isa_pic); } break; case MV64340_MAIN_INTERRUPT_CAUSE_LOW: ret = s->main_int_cr; break; case MV64340_MAIN_INTERRUPT_CAUSE_HIGH: ret = s->main_int_cr >> 32; break; case MV64340_CPU_INTERRUPT0_MASK_LOW: ret = s->cpu0_int_mask; break; case MV64340_CPU_INTERRUPT0_MASK_HIGH: ret = s->cpu0_int_mask >> 32; break; case MV64340_CPU_INTERRUPT0_SELECT_CAUSE: ret = s->main_int_cr; if (s->main_int_cr & s->cpu0_int_mask) { if (!(s->main_int_cr & s->cpu0_int_mask & 0xffffffff)) { ret = s->main_int_cr >> 32 | BIT(30); } else if ((s->main_int_cr & s->cpu0_int_mask) >> 32) { ret |= BIT(31); } } break; case MV64340_ETH_PHY_ADDR: ret = 0x98; break; case MV64340_ETH_SMI: ret = BIT(27); break; case MV64340_CUNIT_ARBITER_CONTROL_REG: ret = 0x11ff0000 | (s->gpp_int_level << 10); break; case MV64340_GPP_IO_CONTROL: ret = s->gpp_io; break; case MV64340_GPP_LEVEL_CONTROL: ret = s->gpp_level; break; case MV64340_GPP_VALUE: ret = s->gpp_value; break; case MV64340_GPP_VALUE_SET: case MV64340_GPP_VALUE_CLEAR: ret = 0; break; case MV64340_GPP_INTERRUPT_CAUSE: ret = s->gpp_int_cr; break; case MV64340_GPP_INTERRUPT_MASK0: case MV64340_GPP_INTERRUPT_MASK1: ret = s->gpp_int_mask; break; default: qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register read 0x%" HWADDR_PRIx "\n", __func__, addr); break; } if (addr != MV64340_PCI_1_INTERRUPT_ACKNOWLEDGE_VIRTUAL_REG) { trace_mv64361_reg_read(addr, ret); } return ret; } static void warn_swap_bit(uint64_t val) { if ((val & 0x3000000ULL) >> 24 != 1) { qemu_log_mask(LOG_UNIMP, "%s: Data swap not implemented", __func__); } } static void mv64361_set_pci_mem_remap(MV64361State *s, int bus, int idx, uint64_t val, bool high) { if (high) { s->pci[bus].remap[idx] = val; } else { s->pci[bus].remap[idx] &= 0xffffffff00000000ULL; s->pci[bus].remap[idx] |= (val & 0xffffULL) << 16; } } static void mv64361_write(void *opaque, hwaddr addr, uint64_t val, unsigned int size) { MV64361State *s = MV64361(opaque); trace_mv64361_reg_write(addr, val); switch (addr) { case MV64340_CPU_CONFIG: s->cpu_conf = val & 0xe4e3bffULL; s->cpu_conf |= BIT(23); break; case MV64340_PCI_0_IO_BASE_ADDR: s->pci[0].io_base = val & 0x30fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { s->pci[0].remap[4] = (val & 0xffffULL) << 16; } break; case MV64340_PCI_0_IO_SIZE: s->pci[0].io_size = val & 0xffffULL; break; case MV64340_PCI_0_IO_ADDR_REMAP: s->pci[0].remap[4] = (val & 0xffffULL) << 16; break; case MV64340_PCI_0_MEMORY0_BASE_ADDR: s->pci[0].mem_base[0] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 0, 0, val, false); } break; case MV64340_PCI_0_MEMORY0_SIZE: s->pci[0].mem_size[0] = val & 0xffffULL; break; case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP: case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 0, 0, val, (addr == MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP)); break; case MV64340_PCI_0_MEMORY1_BASE_ADDR: s->pci[0].mem_base[1] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 0, 1, val, false); } break; case MV64340_PCI_0_MEMORY1_SIZE: s->pci[0].mem_size[1] = val & 0xffffULL; break; case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP: case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 0, 1, val, (addr == MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP)); break; case MV64340_PCI_0_MEMORY2_BASE_ADDR: s->pci[0].mem_base[2] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 0, 2, val, false); } break; case MV64340_PCI_0_MEMORY2_SIZE: s->pci[0].mem_size[2] = val & 0xffffULL; break; case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP: case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 0, 2, val, (addr == MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP)); break; case MV64340_PCI_0_MEMORY3_BASE_ADDR: s->pci[0].mem_base[3] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 0, 3, val, false); } break; case MV64340_PCI_0_MEMORY3_SIZE: s->pci[0].mem_size[3] = val & 0xffffULL; break; case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP: case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 0, 3, val, (addr == MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP)); break; case MV64340_PCI_1_IO_BASE_ADDR: s->pci[1].io_base = val & 0x30fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { s->pci[1].remap[4] = (val & 0xffffULL) << 16; } break; case MV64340_PCI_1_IO_SIZE: s->pci[1].io_size = val & 0xffffULL; break; case MV64340_PCI_1_MEMORY0_BASE_ADDR: s->pci[1].mem_base[0] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 1, 0, val, false); } break; case MV64340_PCI_1_MEMORY0_SIZE: s->pci[1].mem_size[0] = val & 0xffffULL; break; case MV64340_PCI_1_MEMORY0_LOW_ADDR_REMAP: case MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 1, 0, val, (addr == MV64340_PCI_1_MEMORY0_HIGH_ADDR_REMAP)); break; case MV64340_PCI_1_MEMORY1_BASE_ADDR: s->pci[1].mem_base[1] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 1, 1, val, false); } break; case MV64340_PCI_1_MEMORY1_SIZE: s->pci[1].mem_size[1] = val & 0xffffULL; break; case MV64340_PCI_1_MEMORY1_LOW_ADDR_REMAP: case MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 1, 1, val, (addr == MV64340_PCI_1_MEMORY1_HIGH_ADDR_REMAP)); break; case MV64340_PCI_1_MEMORY2_BASE_ADDR: s->pci[1].mem_base[2] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 1, 2, val, false); } break; case MV64340_PCI_1_MEMORY2_SIZE: s->pci[1].mem_size[2] = val & 0xffffULL; break; case MV64340_PCI_1_MEMORY2_LOW_ADDR_REMAP: case MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 1, 2, val, (addr == MV64340_PCI_1_MEMORY2_HIGH_ADDR_REMAP)); break; case MV64340_PCI_1_MEMORY3_BASE_ADDR: s->pci[1].mem_base[3] = val & 0x70fffffULL; warn_swap_bit(val); if (!(s->cpu_conf & BIT(27))) { mv64361_set_pci_mem_remap(s, 1, 3, val, false); } break; case MV64340_PCI_1_MEMORY3_SIZE: s->pci[1].mem_size[3] = val & 0xffffULL; break; case MV64340_PCI_1_MEMORY3_LOW_ADDR_REMAP: case MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP: mv64361_set_pci_mem_remap(s, 1, 3, val, (addr == MV64340_PCI_1_MEMORY3_HIGH_ADDR_REMAP)); break; case MV64340_INTERNAL_SPACE_BASE_ADDR: s->regs_base = val & 0xfffffULL; break; case MV64340_BASE_ADDR_ENABLE: set_mem_windows(s, val); break; case MV64340_PCI_0_CONFIG_ADDR: pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]), 0, val, size); break; case MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG ... MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG + 3: pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[0]), addr - MV64340_PCI_0_CONFIG_DATA_VIRTUAL_REG, val, size); break; case MV64340_PCI_1_CONFIG_ADDR: pci_host_conf_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]), 0, val, size); break; case MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG ... MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG + 3: pci_host_data_le_ops.write(PCI_HOST_BRIDGE(&s->pci[1]), addr - MV64340_PCI_1_CONFIG_DATA_VIRTUAL_REG, val, size); break; case MV64340_CPU_INTERRUPT0_MASK_LOW: s->cpu0_int_mask &= 0xffffffff00000000ULL; s->cpu0_int_mask |= val & 0xffffffffULL; break; case MV64340_CPU_INTERRUPT0_MASK_HIGH: s->cpu0_int_mask &= 0xffffffffULL; s->cpu0_int_mask |= val << 32; break; case MV64340_CUNIT_ARBITER_CONTROL_REG: s->gpp_int_level = !!(val & BIT(10)); break; case MV64340_GPP_IO_CONTROL: s->gpp_io = val; break; case MV64340_GPP_LEVEL_CONTROL: s->gpp_level = val; break; case MV64340_GPP_VALUE: s->gpp_value &= ~s->gpp_io; s->gpp_value |= val & s->gpp_io; break; case MV64340_GPP_VALUE_SET: s->gpp_value |= val & s->gpp_io; break; case MV64340_GPP_VALUE_CLEAR: s->gpp_value &= ~(val & s->gpp_io); break; case MV64340_GPP_INTERRUPT_CAUSE: if (!s->gpp_int_level && val != s->gpp_int_cr) { int i; uint32_t ch = s->gpp_int_cr ^ val; s->gpp_int_cr = val; for (i = 0; i < 4; i++) { if ((ch & 0xff << i) && !(val & 0xff << i)) { mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + i, 0); } } } else { s->gpp_int_cr = val; } break; case MV64340_GPP_INTERRUPT_MASK0: case MV64340_GPP_INTERRUPT_MASK1: s->gpp_int_mask = val; break; default: qemu_log_mask(LOG_UNIMP, "%s: Unimplemented register write 0x%" HWADDR_PRIx " = %"PRIx64"\n", __func__, addr, val); break; } } static const MemoryRegionOps mv64361_ops = { .read = mv64361_read, .write = mv64361_write, .valid.min_access_size = 1, .valid.max_access_size = 4, .endianness = DEVICE_LITTLE_ENDIAN, }; static void mv64361_gpp_irq(void *opaque, int n, int level) { MV64361State *s = opaque; uint32_t mask = BIT(n); uint32_t val = s->gpp_value & ~mask; if (s->gpp_level & mask) { level = !level; } val |= level << n; if (val > s->gpp_value) { s->gpp_value = val; s->gpp_int_cr |= mask; if (s->gpp_int_mask & mask) { mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + n / 8, 1); } } else if (val < s->gpp_value) { int b = n / 8; s->gpp_value = val; if (s->gpp_int_level && !(val & 0xff << b)) { mv64361_update_irq(opaque, MV64361_IRQ_P0_GPP0_7 + b, 0); } } } static void mv64361_realize(DeviceState *dev, Error **errp) { MV64361State *s = MV64361(dev); int i; s->base_addr_enable = 0x1fffff; memory_region_init_io(&s->regs, OBJECT(s), &mv64361_ops, s, TYPE_MV64361, 0x10000); sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->regs); for (i = 0; i < 2; i++) { g_autofree char *name = g_strdup_printf("pcihost%d", i); object_initialize_child(OBJECT(dev), name, &s->pci[i], TYPE_MV64361_PCI); DeviceState *pci = DEVICE(&s->pci[i]); qdev_prop_set_uint8(pci, "index", i); sysbus_realize_and_unref(SYS_BUS_DEVICE(pci), &error_fatal); } sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->cpu_irq); qdev_init_gpio_in_named(dev, mv64361_gpp_irq, "gpp", 32); } static void mv64361_reset(DeviceState *dev) { MV64361State *s = MV64361(dev); int i, j; /* * These values may be board specific * Real chip supports init from an eprom but that's not modelled */ set_mem_windows(s, 0x1fffff); s->cpu_conf = 0x28000ff; s->regs_base = 0x100f100; s->pci[0].io_base = 0x100f800; s->pci[0].io_size = 0xff; s->pci[0].mem_base[0] = 0x100c000; s->pci[0].mem_size[0] = 0x1fff; s->pci[0].mem_base[1] = 0x100f900; s->pci[0].mem_size[1] = 0xff; s->pci[0].mem_base[2] = 0x100f400; s->pci[0].mem_size[2] = 0x1ff; s->pci[0].mem_base[3] = 0x100f600; s->pci[0].mem_size[3] = 0x1ff; s->pci[1].io_base = 0x100fe00; s->pci[1].io_size = 0xff; s->pci[1].mem_base[0] = 0x1008000; s->pci[1].mem_size[0] = 0x3fff; s->pci[1].mem_base[1] = 0x100fd00; s->pci[1].mem_size[1] = 0xff; s->pci[1].mem_base[2] = 0x1002600; s->pci[1].mem_size[2] = 0x1ff; s->pci[1].mem_base[3] = 0x100ff80; s->pci[1].mem_size[3] = 0x7f; for (i = 0; i < 2; i++) { for (j = 0; j < 4; j++) { s->pci[i].remap[j] = s->pci[i].mem_base[j] << 16; } } s->pci[0].remap[1] = 0; s->pci[1].remap[1] = 0; set_mem_windows(s, 0xfbfff); } static void mv64361_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = mv64361_realize; device_class_set_legacy_reset(dc, mv64361_reset); } static const TypeInfo mv64361_type_info = { .name = TYPE_MV64361, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(MV64361State), .class_init = mv64361_class_init, }; static void mv64361_register_types(void) { type_register_static(&mv64361_type_info); } type_init(mv64361_register_types)