diff options
| -rw-r--r-- | hw/alpha/Kconfig | 4 | ||||
| -rw-r--r-- | hw/alpha/alpha_sys.h | 2 | ||||
| -rw-r--r-- | hw/alpha/dp264.c | 38 | ||||
| -rw-r--r-- | hw/alpha/typhoon.c | 19 |
4 files changed, 36 insertions, 27 deletions
diff --git a/hw/alpha/Kconfig b/hw/alpha/Kconfig index 15c59ff264..9af650c94e 100644 --- a/hw/alpha/Kconfig +++ b/hw/alpha/Kconfig @@ -3,9 +3,7 @@ config DP264 imply PCI_DEVICES imply TEST_DEVICES imply E1000_PCI - select I82374 - select I8254 - select I8259 + select I82378 select IDE_CMD646 select MC146818RTC select PCI diff --git a/hw/alpha/alpha_sys.h b/hw/alpha/alpha_sys.h index 4835b3d5ee..2263e821da 100644 --- a/hw/alpha/alpha_sys.h +++ b/hw/alpha/alpha_sys.h @@ -10,7 +10,7 @@ #include "hw/intc/i8259.h" -PCIBus *typhoon_init(MemoryRegion *, ISABus **, qemu_irq *, AlphaCPU *[4], +PCIBus *typhoon_init(MemoryRegion *, qemu_irq *, qemu_irq *, AlphaCPU *[4], pci_map_irq_fn, uint8_t devfn_min); /* alpha_pci.c. */ diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c index 316f0691cd..c78ed96d0e 100644 --- a/hw/alpha/dp264.c +++ b/hw/alpha/dp264.c @@ -15,9 +15,7 @@ #include "qemu/error-report.h" #include "hw/rtc/mc146818rtc.h" #include "hw/ide/pci.h" -#include "hw/timer/i8254.h" #include "hw/isa/superio.h" -#include "hw/dma/i8257.h" #include "net/net.h" #include "qemu/cutils.h" #include "qemu/datadir.h" @@ -58,8 +56,10 @@ static void clipper_init(MachineState *machine) AlphaCPU *cpus[4]; PCIBus *pci_bus; PCIDevice *pci_dev; + DeviceState *i82378_dev; ISABus *isa_bus; qemu_irq rtc_irq; + qemu_irq isa_irq; long size, i; char *palcode_filename; uint64_t palcode_entry; @@ -90,14 +90,39 @@ static void clipper_init(MachineState *machine) * Init the chipset. Because we're using CLIPPER IRQ mappings, * the minimum PCI device IdSel is 1. */ - pci_bus = typhoon_init(machine->ram, &isa_bus, &rtc_irq, cpus, + pci_bus = typhoon_init(machine->ram, &isa_irq, &rtc_irq, cpus, clipper_pci_map_irq, PCI_DEVFN(1, 0)); + /* + * Init the PCI -> ISA bridge. + * + * Technically, PCI-based Alphas shipped with one of three different + * PCI-ISA bridges: + * + * - Intel i82378 SIO + * - Cypress CY82c693UB + * - ALI M1533 + * + * (An Intel i82375 PCI-EISA bridge was also used on some models.) + * + * For simplicity, we model an i82378 here, even though it wouldn't + * have been on any Tsunami/Typhoon systems; it's close enough, and + * we don't want to deal with modelling the CY82c693UB (which has + * incompatible edge/level control registers, plus other peripherals + * like IDE and USB) or the M1533 (which also has IDE and USB). + * + * Importantly, we need to provide a PCI device node for it, otherwise + * some operating systems won't notice there's an ISA bus to configure. + */ + i82378_dev = DEVICE(pci_create_simple(pci_bus, PCI_DEVFN(7, 0), "i82378")); + isa_bus = ISA_BUS(qdev_get_child_bus(i82378_dev, "isa.0")); + + /* Connect the ISA PIC to the Typhoon IRQ used for ISA interrupts. */ + qdev_connect_gpio_out(i82378_dev, 0, isa_irq); + /* Since we have an SRM-compatible PALcode, use the SRM epoch. */ mc146818_rtc_init(isa_bus, 1900, rtc_irq); - i8254_pit_init(isa_bus, 0x40, 0, NULL); - /* VGA setup. Don't bother loading the bios. */ pci_vga_init(pci_bus); @@ -106,9 +131,6 @@ static void clipper_init(MachineState *machine) pci_nic_init_nofail(&nd_table[i], pci_bus, "e1000", NULL); } - /* 2 82C37 (dma) */ - isa_create_simple(isa_bus, "i82374"); - /* Super I/O */ isa_create_simple(isa_bus, TYPE_SMC37C669_SUPERIO); diff --git a/hw/alpha/typhoon.c b/hw/alpha/typhoon.c index fa31a2f286..bd39c8ca86 100644 --- a/hw/alpha/typhoon.c +++ b/hw/alpha/typhoon.c @@ -814,9 +814,9 @@ static void typhoon_alarm_timer(void *opaque) cpu_interrupt(CPU(s->cchip.cpu[cpu]), CPU_INTERRUPT_TIMER); } -PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq, - AlphaCPU *cpus[4], pci_map_irq_fn sys_map_irq, - uint8_t devfn_min) +PCIBus *typhoon_init(MemoryRegion *ram, qemu_irq *p_isa_irq, + qemu_irq *p_rtc_irq, AlphaCPU *cpus[4], + pci_map_irq_fn sys_map_irq, uint8_t devfn_min) { MemoryRegion *addr_space = get_system_memory(); DeviceState *dev; @@ -844,6 +844,7 @@ PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq, } } + *p_isa_irq = qemu_allocate_irq(typhoon_set_isa_irq, s, 0); *p_rtc_irq = qemu_allocate_irq(typhoon_set_timer_irq, s, 0); /* Main memory region, 0x00.0000.0000. Real hardware supports 32GB, @@ -919,18 +920,6 @@ PCIBus *typhoon_init(MemoryRegion *ram, ISABus **isa_bus, qemu_irq *p_rtc_irq, /* Pchip1 PCI I/O, 0x802.FC00.0000, 32MB. */ /* Pchip1 PCI configuration, 0x802.FE00.0000, 16MB. */ - /* Init the ISA bus. */ - /* ??? Technically there should be a cy82c693ub pci-isa bridge. */ - { - qemu_irq *isa_irqs; - - *isa_bus = isa_bus_new(NULL, get_system_memory(), &s->pchip.reg_io, - &error_abort); - isa_irqs = i8259_init(*isa_bus, - qemu_allocate_irq(typhoon_set_isa_irq, s, 0)); - isa_bus_irqs(*isa_bus, isa_irqs); - } - return b; } |