diff options
| -rw-r--r-- | hw/arm/aspeed_ast2600.c | 7 | ||||
| -rw-r--r-- | hw/i2c/aspeed_i2c.c | 101 | ||||
| -rw-r--r-- | include/hw/i2c/aspeed_i2c.h | 8 |
3 files changed, 91 insertions, 25 deletions
diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c index c69f27dff6..a70e4c48a7 100644 --- a/hw/arm/aspeed_ast2600.c +++ b/hw/arm/aspeed_ast2600.c @@ -337,11 +337,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) { qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore), sc->irqmap[ASPEED_DEV_I2C] + i); - /* - * The AST2600 SoC has one IRQ per I2C bus. Skip the common - * IRQ (AST2400 and AST2500) and connect all bussses. - */ - sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c), i + 1, irq); + /* The AST2600 I2C controller has one IRQ per bus. */ + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq); } /* FMC, The number of CS is set at the board level */ diff --git a/hw/i2c/aspeed_i2c.c b/hw/i2c/aspeed_i2c.c index 8d276d9ed3..03a4f5a910 100644 --- a/hw/i2c/aspeed_i2c.c +++ b/hw/i2c/aspeed_i2c.c @@ -740,20 +740,20 @@ static const VMStateDescription aspeed_i2c_vmstate = { static void aspeed_i2c_reset(DeviceState *dev) { - int i; AspeedI2CState *s = ASPEED_I2C(dev); - AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s); s->intr_status = 0; +} + +static void aspeed_i2c_instance_init(Object *obj) +{ + AspeedI2CState *s = ASPEED_I2C(obj); + AspeedI2CClass *aic = ASPEED_I2C_GET_CLASS(s); + int i; for (i = 0; i < aic->num_busses; i++) { - s->busses[i].intr_ctrl = 0; - s->busses[i].intr_status = 0; - s->busses[i].cmd = 0; - s->busses[i].buf = 0; - s->busses[i].dma_addr = 0; - s->busses[i].dma_len = 0; - i2c_end_transfer(s->busses[i].bus); + object_initialize_child(obj, "bus[*]", &s->busses[i], + TYPE_ASPEED_I2C_BUS); } } @@ -791,17 +791,21 @@ static void aspeed_i2c_realize(DeviceState *dev, Error **errp) sysbus_init_mmio(sbd, &s->iomem); for (i = 0; i < aic->num_busses; i++) { - char name[32]; + Object *bus = OBJECT(&s->busses[i]); int offset = i < aic->gap ? 1 : 5; - sysbus_init_irq(sbd, &s->busses[i].irq); - snprintf(name, sizeof(name), "aspeed.i2c.%d", i); - s->busses[i].controller = s; - s->busses[i].id = i; - s->busses[i].bus = i2c_init_bus(dev, name); - memory_region_init_io(&s->busses[i].mr, OBJECT(dev), - &aspeed_i2c_bus_ops, &s->busses[i], name, - aic->reg_size); + if (!object_property_set_link(bus, "controller", OBJECT(s), errp)) { + return; + } + + if (!object_property_set_uint(bus, "bus-id", i, errp)) { + return; + } + + if (!sysbus_realize(SYS_BUS_DEVICE(bus), errp)) { + return; + } + memory_region_add_subregion(&s->iomem, aic->reg_size * (i + offset), &s->busses[i].mr); } @@ -841,12 +845,72 @@ static void aspeed_i2c_class_init(ObjectClass *klass, void *data) static const TypeInfo aspeed_i2c_info = { .name = TYPE_ASPEED_I2C, .parent = TYPE_SYS_BUS_DEVICE, + .instance_init = aspeed_i2c_instance_init, .instance_size = sizeof(AspeedI2CState), .class_init = aspeed_i2c_class_init, .class_size = sizeof(AspeedI2CClass), .abstract = true, }; +static void aspeed_i2c_bus_reset(DeviceState *dev) +{ + AspeedI2CBus *s = ASPEED_I2C_BUS(dev); + + s->intr_ctrl = 0; + s->intr_status = 0; + s->cmd = 0; + s->buf = 0; + s->dma_addr = 0; + s->dma_len = 0; + i2c_end_transfer(s->bus); +} + +static void aspeed_i2c_bus_realize(DeviceState *dev, Error **errp) +{ + AspeedI2CBus *s = ASPEED_I2C_BUS(dev); + AspeedI2CClass *aic; + g_autofree char *name = g_strdup_printf(TYPE_ASPEED_I2C_BUS ".%d", s->id); + + if (!s->controller) { + error_setg(errp, TYPE_ASPEED_I2C_BUS ": 'controller' link not set"); + return; + } + + aic = ASPEED_I2C_GET_CLASS(s->controller); + + sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq); + + s->bus = i2c_init_bus(dev, name); + + memory_region_init_io(&s->mr, OBJECT(s), &aspeed_i2c_bus_ops, + s, name, aic->reg_size); + sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->mr); +} + +static Property aspeed_i2c_bus_properties[] = { + DEFINE_PROP_UINT8("bus-id", AspeedI2CBus, id, 0), + DEFINE_PROP_LINK("controller", AspeedI2CBus, controller, TYPE_ASPEED_I2C, + AspeedI2CState *), + DEFINE_PROP_END_OF_LIST(), +}; + +static void aspeed_i2c_bus_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "Aspeed I2C Bus"; + dc->realize = aspeed_i2c_bus_realize; + dc->reset = aspeed_i2c_bus_reset; + device_class_set_props(dc, aspeed_i2c_bus_properties); +} + +static const TypeInfo aspeed_i2c_bus_info = { + .name = TYPE_ASPEED_I2C_BUS, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(AspeedI2CBus), + .class_init = aspeed_i2c_bus_class_init, +}; + static qemu_irq aspeed_2400_i2c_bus_get_irq(AspeedI2CBus *bus) { return bus->controller->irq; @@ -951,6 +1015,7 @@ static const TypeInfo aspeed_2600_i2c_info = { static void aspeed_i2c_register_types(void) { + type_register_static(&aspeed_i2c_bus_info); type_register_static(&aspeed_i2c_info); type_register_static(&aspeed_2400_i2c_info); type_register_static(&aspeed_2500_i2c_info); diff --git a/include/hw/i2c/aspeed_i2c.h b/include/hw/i2c/aspeed_i2c.h index 565f833066..4b9be09274 100644 --- a/include/hw/i2c/aspeed_i2c.h +++ b/include/hw/i2c/aspeed_i2c.h @@ -36,7 +36,11 @@ OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C) struct AspeedI2CState; -typedef struct AspeedI2CBus { +#define TYPE_ASPEED_I2C_BUS "aspeed.i2c.bus" +OBJECT_DECLARE_SIMPLE_TYPE(AspeedI2CBus, ASPEED_I2C_BUS) +struct AspeedI2CBus { + SysBusDevice parent_obj; + struct AspeedI2CState *controller; MemoryRegion mr; @@ -54,7 +58,7 @@ typedef struct AspeedI2CBus { uint32_t pool_ctrl; uint32_t dma_addr; uint32_t dma_len; -} AspeedI2CBus; +}; struct AspeedI2CState { SysBusDevice parent_obj; |