diff options
Diffstat (limited to 'hw/arm/aspeed_ast27x0.c')
| -rw-r--r-- | hw/arm/aspeed_ast27x0.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c index 4257b5e8af..761ee11657 100644 --- a/hw/arm/aspeed_ast27x0.c +++ b/hw/arm/aspeed_ast27x0.c @@ -61,6 +61,7 @@ static const hwaddr aspeed_soc_ast2700_memmap[] = { [ASPEED_GIC_DIST] = 0x12200000, [ASPEED_GIC_REDIST] = 0x12280000, [ASPEED_DEV_ADC] = 0x14C00000, + [ASPEED_DEV_I2C] = 0x14C0F000, }; #define AST2700_MAX_IRQ 288 @@ -193,6 +194,27 @@ static qemu_irq aspeed_soc_ast2700_get_irq(AspeedSoCState *s, int dev) return qdev_get_gpio_in(DEVICE(&a->gic), sc->irqmap[dev]); } +static qemu_irq aspeed_soc_ast2700_get_irq_index(AspeedSoCState *s, int dev, + int index) +{ + Aspeed27x0SoCState *a = ASPEED27X0_SOC(s); + AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); + int i; + + for (i = 0; i < ARRAY_SIZE(aspeed_soc_ast2700_gic_intcmap); i++) { + if (sc->irqmap[dev] == aspeed_soc_ast2700_gic_intcmap[i].irq) { + assert(aspeed_soc_ast2700_gic_intcmap[i].ptr); + return qdev_get_gpio_in(DEVICE(&a->intc.orgates[i]), + aspeed_soc_ast2700_gic_intcmap[i].ptr[dev] + index); + } + } + + /* + * Invalid orgate index, device irq should be 128 to 136. + */ + g_assert_not_reached(); +} + static uint64_t aspeed_ram_capacity_read(void *opaque, hwaddr addr, unsigned int size) { @@ -348,6 +370,9 @@ static void aspeed_soc_ast2700_init(Object *obj) snprintf(typename, sizeof(typename), "aspeed.adc-%s", socname); object_initialize_child(obj, "adc", &s->adc, typename); + + snprintf(typename, sizeof(typename), "aspeed.i2c-%s", socname); + object_initialize_child(obj, "i2c", &s->i2c, typename); } /* @@ -431,6 +456,7 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp) AspeedSoCClass *sc = ASPEED_SOC_GET_CLASS(s); AspeedINTCClass *ic = ASPEED_INTC_GET_CLASS(&a->intc); g_autofree char *sram_name = NULL; + qemu_irq irq; /* Default boot region (SPI memory or ROMs) */ memory_region_init(&s->spi_boot_container, OBJECT(s), @@ -613,6 +639,25 @@ static void aspeed_soc_ast2700_realize(DeviceState *dev, Error **errp) sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0, aspeed_soc_get_irq(s, ASPEED_DEV_ADC)); + /* I2C */ + object_property_set_link(OBJECT(&s->i2c), "dram", OBJECT(s->dram_mr), + &error_abort); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c), errp)) { + return; + } + aspeed_mmio_map(s, SYS_BUS_DEVICE(&s->i2c), 0, sc->memmap[ASPEED_DEV_I2C]); + for (i = 0; i < ASPEED_I2C_GET_CLASS(&s->i2c)->num_busses; i++) { + /* + * The AST2700 I2C controller has one source INTC per bus. + * I2C buses interrupt are connected to GICINT130_INTC + * from bit 0 to bit 15. + * I2C bus 0 is connected to GICINT130_INTC at bit 0. + * I2C bus 15 is connected to GICINT130_INTC at bit 15. + */ + irq = aspeed_soc_ast2700_get_irq_index(s, ASPEED_DEV_I2C, i); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c.busses[i]), 0, irq); + } + create_unimplemented_device("ast2700.dpmcu", 0x11000000, 0x40000); create_unimplemented_device("ast2700.iomem0", 0x12000000, 0x01000000); create_unimplemented_device("ast2700.iomem1", 0x14000000, 0x01000000); |