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951 lines
31 KiB
C
951 lines
31 KiB
C
/*
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* Marvell Discovery II MV64361 System Controller for
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* QEMU PowerPC CHRP (Genesi/bPlan Pegasos II) hardware System Emulator
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*
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* Copyright (c) 2018-2020 BALATON Zoltan
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*
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* This work is licensed under the GNU GPL license version 2 or later.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu/units.h"
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#include "qapi/error.h"
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#include "hw/hw.h"
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#include "hw/sysbus.h"
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#include "hw/pci/pci.h"
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#include "hw/pci/pci_host.h"
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#include "hw/irq.h"
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#include "hw/intc/i8259.h"
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#include "hw/qdev-properties.h"
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#include "exec/address-spaces.h"
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#include "qemu/log.h"
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#include "qemu/error-report.h"
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#include "trace.h"
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#include "hw/pci-host/mv64361.h"
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#include "mv643xx.h"
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#define TYPE_MV64361_PCI_BRIDGE "mv64361-pcibridge"
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static void mv64361_pcibridge_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
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k->vendor_id = PCI_VENDOR_ID_MARVELL;
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k->device_id = PCI_DEVICE_ID_MARVELL_MV6436X;
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k->class_id = PCI_CLASS_BRIDGE_HOST;
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/*
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* PCI-facing part of the host bridge,
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* not usable without the host-facing part
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*/
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dc->user_creatable = false;
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}
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static const TypeInfo mv64361_pcibridge_info = {
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.name = TYPE_MV64361_PCI_BRIDGE,
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.parent = TYPE_PCI_DEVICE,
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.instance_size = sizeof(PCIDevice),
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.class_init = mv64361_pcibridge_class_init,
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.interfaces = (InterfaceInfo[]) {
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{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
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{ },
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},
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};
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#define TYPE_MV64361_PCI "mv64361-pcihost"
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OBJECT_DECLARE_SIMPLE_TYPE(MV64361PCIState, MV64361_PCI)
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struct MV64361PCIState {
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PCIHostState parent_obj;
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uint8_t index;
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MemoryRegion io;
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MemoryRegion mem;
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qemu_irq irq[PCI_NUM_PINS];
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uint32_t io_base;
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uint32_t io_size;
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uint32_t mem_base[4];
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uint32_t mem_size[4];
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uint64_t remap[5];
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};
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static int mv64361_pcihost_map_irq(PCIDevice *pci_dev, int n)
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{
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return (n + PCI_SLOT(pci_dev->devfn)) % PCI_NUM_PINS;
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}
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static void mv64361_pcihost_set_irq(void *opaque, int n, int level)
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{
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MV64361PCIState *s = opaque;
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qemu_set_irq(s->irq[n], level);
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}
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static void mv64361_pcihost_realize(DeviceState *dev, Error **errp)
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{
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MV64361PCIState *s = MV64361_PCI(dev);
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PCIHostState *h = PCI_HOST_BRIDGE(dev);
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char *name;
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name = g_strdup_printf("pci%d-io", s->index);
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memory_region_init(&s->io, OBJECT(dev), name, 0x10000);
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g_free(name);
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name = g_strdup_printf("pci%d-mem", s->index);
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memory_region_init(&s->mem, OBJECT(dev), name, 1ULL << 32);
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g_free(name);
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name = g_strdup_printf("pci.%d", s->index);
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h->bus = pci_register_root_bus(dev, name, mv64361_pcihost_set_irq,
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mv64361_pcihost_map_irq, dev,
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&s->mem, &s->io, 0, 4, TYPE_PCI_BUS);
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g_free(name);
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pci_create_simple(h->bus, 0, TYPE_MV64361_PCI_BRIDGE);
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}
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static Property mv64361_pcihost_props[] = {
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DEFINE_PROP_UINT8("index", MV64361PCIState, index, 0),
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DEFINE_PROP_END_OF_LIST()
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};
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static void mv64361_pcihost_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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dc->realize = mv64361_pcihost_realize;
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device_class_set_props(dc, mv64361_pcihost_props);
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set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
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}
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static const TypeInfo mv64361_pcihost_info = {
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.name = TYPE_MV64361_PCI,
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.parent = TYPE_PCI_HOST_BRIDGE,
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.instance_size = sizeof(MV64361PCIState),
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.class_init = mv64361_pcihost_class_init,
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};
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static void mv64361_pci_register_types(void)
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{
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type_register_static(&mv64361_pcihost_info);
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type_register_static(&mv64361_pcibridge_info);
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}
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type_init(mv64361_pci_register_types)
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OBJECT_DECLARE_SIMPLE_TYPE(MV64361State, MV64361)
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struct MV64361State {
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SysBusDevice parent_obj;
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MemoryRegion regs;
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MV64361PCIState pci[2];
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MemoryRegion cpu_win[19];
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qemu_irq cpu_irq;
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/* registers state */
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uint32_t cpu_conf;
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uint32_t regs_base;
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uint32_t base_addr_enable;
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uint64_t main_int_cr;
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uint64_t cpu0_int_mask;
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uint32_t gpp_io;
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uint32_t gpp_level;
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uint32_t gpp_value;
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uint32_t gpp_int_cr;
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uint32_t gpp_int_mask;
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bool gpp_int_level;
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};
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enum mv64361_irq_cause {
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MV64361_IRQ_DEVERR = 1,
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MV64361_IRQ_DMAERR = 2,
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MV64361_IRQ_CPUERR = 3,
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MV64361_IRQ_IDMA0 = 4,
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MV64361_IRQ_IDMA1 = 5,
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MV64361_IRQ_IDMA2 = 6,
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MV64361_IRQ_IDMA3 = 7,
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MV64361_IRQ_TIMER0 = 8,
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MV64361_IRQ_TIMER1 = 9,
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MV64361_IRQ_TIMER2 = 10,
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MV64361_IRQ_TIMER3 = 11,
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MV64361_IRQ_PCI0 = 12,
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MV64361_IRQ_SRAMERR = 13,
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MV64361_IRQ_GBEERR = 14,
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MV64361_IRQ_CERR = 15,
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MV64361_IRQ_PCI1 = 16,
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MV64361_IRQ_DRAMERR = 17,
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MV64361_IRQ_WDNMI = 18,
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MV64361_IRQ_WDE = 19,
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MV64361_IRQ_PCI0IN = 20,
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MV64361_IRQ_PCI0OUT = 21,
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MV64361_IRQ_PCI1IN = 22,
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MV64361_IRQ_PCI1OUT = 23,
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MV64361_IRQ_P1_GPP0_7 = 24,
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MV64361_IRQ_P1_GPP8_15 = 25,
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MV64361_IRQ_P1_GPP16_23 = 26,
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MV64361_IRQ_P1_GPP24_31 = 27,
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MV64361_IRQ_P1_CPU_DB = 28,
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/* 29-31: reserved */
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MV64361_IRQ_GBE0 = 32,
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MV64361_IRQ_GBE1 = 33,
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MV64361_IRQ_GBE2 = 34,
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/* 35: reserved */
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MV64361_IRQ_SDMA0 = 36,
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MV64361_IRQ_TWSI = 37,
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MV64361_IRQ_SDMA1 = 38,
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MV64361_IRQ_BRG = 39,
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MV64361_IRQ_MPSC0 = 40,
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MV64361_IRQ_MPSC1 = 41,
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MV64361_IRQ_G0RX = 42,
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MV64361_IRQ_G0TX = 43,
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MV64361_IRQ_G0MISC = 44,
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MV64361_IRQ_G1RX = 45,
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MV64361_IRQ_G1TX = 46,
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MV64361_IRQ_G1MISC = 47,
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MV64361_IRQ_G2RX = 48,
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MV64361_IRQ_G2TX = 49,
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MV64361_IRQ_G2MISC = 50,
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/* 51-55: reserved */
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MV64361_IRQ_P0_GPP0_7 = 56,
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MV64361_IRQ_P0_GPP8_15 = 57,
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MV64361_IRQ_P0_GPP16_23 = 58,
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MV64361_IRQ_P0_GPP24_31 = 59,
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MV64361_IRQ_P0_CPU_DB = 60,
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/* 61-63: reserved */
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};
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PCIBus *mv64361_get_pci_bus(DeviceState *dev, int n)
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{
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MV64361State *mv = MV64361(dev);
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return PCI_HOST_BRIDGE(&mv->pci[n])->bus;
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}
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static void unmap_region(MemoryRegion *mr)
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{
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if (memory_region_is_mapped(mr)) {
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memory_region_del_subregion(get_system_memory(), mr);
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object_unparent(OBJECT(mr));
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}
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}
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static void map_pci_region(MemoryRegion *mr, MemoryRegion *parent,
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struct Object *owner, const char *name,
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hwaddr poffs, uint64_t size, hwaddr moffs)
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{
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memory_region_init_alias(mr, owner, name, parent, poffs, size);
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memory_region_add_subregion(get_system_memory(), moffs, mr);
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trace_mv64361_region_map(name, poffs, size, moffs);
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}
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static void set_mem_windows(MV64361State *s, uint32_t val)
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{
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MV64361PCIState *p;
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MemoryRegion *mr;
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uint32_t mask;
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int i;
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val &= 0x1fffff;
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for (mask = 1, i = 0; i < 21; i++, mask <<= 1) {
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if ((val & mask) != (s->base_addr_enable & mask)) {
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trace_mv64361_region_enable(!(val & mask) ? "enable" : "disable", i);
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/*
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* 0-3 are SDRAM chip selects but we map all RAM directly
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* 4-7 are device chip selects (not sure what those are)
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* 8 is Boot device (ROM) chip select but we map that directly too
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*/
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if (i == 9) {
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p = &s->pci[0];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->io, OBJECT(s), "pci0-io-win",
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p->remap[4], (p->io_size + 1) << 16,
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(p->io_base & 0xfffff) << 16);
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}
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} else if (i == 10) {
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p = &s->pci[0];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem0-win",
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p->remap[0], (p->mem_size[0] + 1) << 16,
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(p->mem_base[0] & 0xfffff) << 16);
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}
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} else if (i == 11) {
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p = &s->pci[0];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem1-win",
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p->remap[1], (p->mem_size[1] + 1) << 16,
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(p->mem_base[1] & 0xfffff) << 16);
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}
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} else if (i == 12) {
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p = &s->pci[0];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem2-win",
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p->remap[2], (p->mem_size[2] + 1) << 16,
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(p->mem_base[2] & 0xfffff) << 16);
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}
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} else if (i == 13) {
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p = &s->pci[0];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci0-mem3-win",
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p->remap[3], (p->mem_size[3] + 1) << 16,
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(p->mem_base[3] & 0xfffff) << 16);
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}
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} else if (i == 14) {
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p = &s->pci[1];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->io, OBJECT(s), "pci1-io-win",
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p->remap[4], (p->io_size + 1) << 16,
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(p->io_base & 0xfffff) << 16);
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}
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} else if (i == 15) {
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p = &s->pci[1];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem0-win",
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p->remap[0], (p->mem_size[0] + 1) << 16,
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(p->mem_base[0] & 0xfffff) << 16);
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}
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} else if (i == 16) {
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p = &s->pci[1];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem1-win",
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p->remap[1], (p->mem_size[1] + 1) << 16,
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(p->mem_base[1] & 0xfffff) << 16);
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}
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} else if (i == 17) {
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p = &s->pci[1];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem2-win",
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p->remap[2], (p->mem_size[2] + 1) << 16,
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(p->mem_base[2] & 0xfffff) << 16);
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}
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} else if (i == 18) {
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p = &s->pci[1];
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mr = &s->cpu_win[i];
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unmap_region(mr);
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if (!(val & mask)) {
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map_pci_region(mr, &p->mem, OBJECT(s), "pci1-mem3-win",
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p->remap[3], (p->mem_size[3] + 1) << 16,
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(p->mem_base[3] & 0xfffff) << 16);
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}
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/* 19 is integrated SRAM */
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} else if (i == 20) {
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mr = &s->regs;
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unmap_region(mr);
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if (!(val & mask)) {
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memory_region_add_subregion(get_system_memory(),
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(s->regs_base & 0xfffff) << 16, mr);
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}
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}
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}
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}
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s->base_addr_enable = val;
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}
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static void mv64361_update_irq(void *opaque, int n, int level)
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{
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MV64361State *s = opaque;
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uint64_t val = s->main_int_cr;
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if (level) {
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val |= BIT_ULL(n);
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} else {
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val &= ~BIT_ULL(n);
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}
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if ((s->main_int_cr & s->cpu0_int_mask) != (val & s->cpu0_int_mask)) {
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qemu_set_irq(s->cpu_irq, level);
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}
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s->main_int_cr = val;
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}
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static uint64_t mv64361_read(void *opaque, hwaddr addr, unsigned int size)
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{
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MV64361State *s = MV64361(opaque);
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uint32_t ret = 0;
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switch (addr) {
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case MV64340_CPU_CONFIG:
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ret = s->cpu_conf;
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break;
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case MV64340_PCI_0_IO_BASE_ADDR:
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ret = s->pci[0].io_base;
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break;
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case MV64340_PCI_0_IO_SIZE:
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ret = s->pci[0].io_size;
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break;
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case MV64340_PCI_0_IO_ADDR_REMAP:
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ret = s->pci[0].remap[4] >> 16;
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break;
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case MV64340_PCI_0_MEMORY0_BASE_ADDR:
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ret = s->pci[0].mem_base[0];
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break;
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case MV64340_PCI_0_MEMORY0_SIZE:
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ret = s->pci[0].mem_size[0];
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break;
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case MV64340_PCI_0_MEMORY0_LOW_ADDR_REMAP:
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ret = (s->pci[0].remap[0] & 0xffff0000) >> 16;
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break;
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case MV64340_PCI_0_MEMORY0_HIGH_ADDR_REMAP:
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ret = s->pci[0].remap[0] >> 32;
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break;
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case MV64340_PCI_0_MEMORY1_BASE_ADDR:
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ret = s->pci[0].mem_base[1];
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break;
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case MV64340_PCI_0_MEMORY1_SIZE:
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ret = s->pci[0].mem_size[1];
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break;
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case MV64340_PCI_0_MEMORY1_LOW_ADDR_REMAP:
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ret = (s->pci[0].remap[1] & 0xffff0000) >> 16;
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break;
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case MV64340_PCI_0_MEMORY1_HIGH_ADDR_REMAP:
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ret = s->pci[0].remap[1] >> 32;
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break;
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case MV64340_PCI_0_MEMORY2_BASE_ADDR:
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ret = s->pci[0].mem_base[2];
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break;
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case MV64340_PCI_0_MEMORY2_SIZE:
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ret = s->pci[0].mem_size[2];
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break;
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case MV64340_PCI_0_MEMORY2_LOW_ADDR_REMAP:
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ret = (s->pci[0].remap[2] & 0xffff0000) >> 16;
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break;
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case MV64340_PCI_0_MEMORY2_HIGH_ADDR_REMAP:
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ret = s->pci[0].remap[2] >> 32;
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break;
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case MV64340_PCI_0_MEMORY3_BASE_ADDR:
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ret = s->pci[0].mem_base[3];
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break;
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case MV64340_PCI_0_MEMORY3_SIZE:
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ret = s->pci[0].mem_size[3];
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break;
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case MV64340_PCI_0_MEMORY3_LOW_ADDR_REMAP:
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ret = (s->pci[0].remap[3] & 0xffff0000) >> 16;
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break;
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case MV64340_PCI_0_MEMORY3_HIGH_ADDR_REMAP:
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ret = s->pci[0].remap[3] >> 32;
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break;
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case MV64340_PCI_1_IO_BASE_ADDR:
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ret = s->pci[1].io_base;
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break;
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case MV64340_PCI_1_IO_SIZE:
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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_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);
|
|
/* FIXME: PCI IRQ connections may be board specific */
|
|
for (i = 0; i < PCI_NUM_PINS; i++) {
|
|
s->pci[1].irq[i] = qdev_get_gpio_in_named(dev, "gpp", 12 + i);
|
|
}
|
|
}
|
|
|
|
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;
|
|
dc->reset = 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)
|