diff options
Diffstat (limited to 'hw/dma')
| -rw-r--r-- | hw/dma/sparc32_dma.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c index d4cff74871..582b7cc976 100644 --- a/hw/dma/sparc32_dma.c +++ b/hw/dma/sparc32_dma.c @@ -30,6 +30,7 @@ #include "hw/sparc/sparc32_dma.h" #include "hw/sparc/sun4m.h" #include "hw/sysbus.h" +#include "qapi/error.h" #include "trace.h" /* @@ -369,11 +370,80 @@ static const TypeInfo sparc32_ledma_device_info = { .class_init = sparc32_ledma_device_class_init, }; +static void sparc32_dma_realize(DeviceState *dev, Error **errp) +{ + SPARC32DMAState *s = SPARC32_DMA(dev); + DeviceState *espdma, *esp, *ledma, *lance; + SysBusDevice *sbd; + Object *iommu; + + iommu = object_resolve_path_type("", TYPE_SUN4M_IOMMU, NULL); + if (!iommu) { + error_setg(errp, "unable to locate sun4m IOMMU device"); + return; + } + + espdma = qdev_create(NULL, TYPE_SPARC32_ESPDMA_DEVICE); + object_property_set_link(OBJECT(espdma), iommu, "iommu", errp); + object_property_add_child(OBJECT(s), "espdma", OBJECT(espdma), errp); + qdev_init_nofail(espdma); + + esp = DEVICE(object_resolve_path_component(OBJECT(espdma), "esp")); + sbd = SYS_BUS_DEVICE(esp); + sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(espdma, 0)); + qdev_connect_gpio_out(espdma, 0, qdev_get_gpio_in(esp, 0)); + qdev_connect_gpio_out(espdma, 1, qdev_get_gpio_in(esp, 1)); + + sbd = SYS_BUS_DEVICE(espdma); + memory_region_add_subregion(&s->dmamem, 0x0, + sysbus_mmio_get_region(sbd, 0)); + + ledma = qdev_create(NULL, TYPE_SPARC32_LEDMA_DEVICE); + object_property_set_link(OBJECT(ledma), iommu, "iommu", errp); + object_property_add_child(OBJECT(s), "ledma", OBJECT(ledma), errp); + qdev_init_nofail(ledma); + + lance = DEVICE(object_resolve_path_component(OBJECT(ledma), "lance")); + sbd = SYS_BUS_DEVICE(lance); + sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(ledma, 0)); + qdev_connect_gpio_out(ledma, 0, qdev_get_gpio_in(lance, 0)); + + sbd = SYS_BUS_DEVICE(ledma); + memory_region_add_subregion(&s->dmamem, 0x10, + sysbus_mmio_get_region(sbd, 0)); +} + +static void sparc32_dma_init(Object *obj) +{ + SPARC32DMAState *s = SPARC32_DMA(obj); + SysBusDevice *sbd = SYS_BUS_DEVICE(obj); + + memory_region_init(&s->dmamem, OBJECT(s), "dma", DMA_SIZE + DMA_ETH_SIZE); + sysbus_init_mmio(sbd, &s->dmamem); +} + +static void sparc32_dma_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->realize = sparc32_dma_realize; +} + +static const TypeInfo sparc32_dma_info = { + .name = TYPE_SPARC32_DMA, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(SPARC32DMAState), + .instance_init = sparc32_dma_init, + .class_init = sparc32_dma_class_init, +}; + + static void sparc32_dma_register_types(void) { type_register_static(&sparc32_dma_device_info); type_register_static(&sparc32_espdma_device_info); type_register_static(&sparc32_ledma_device_info); + type_register_static(&sparc32_dma_info); } type_init(sparc32_dma_register_types) |