/* * AST2400 SoC * * Andrew Jeffery * Jeremy Kerr * * Copyright 2016 IBM Corp. * * This code is licensed under the GPL version 2 or later. See * the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include "qapi/error.h" #include "qemu-common.h" #include "cpu.h" #include "exec/address-spaces.h" #include "hw/arm/ast2400.h" #include "hw/char/serial.h" #include "qemu/log.h" #include "hw/i2c/aspeed_i2c.h" #define AST2400_UART_5_BASE 0x00184000 #define AST2400_IOMEM_SIZE 0x00200000 #define AST2400_IOMEM_BASE 0x1E600000 #define AST2400_SMC_BASE AST2400_IOMEM_BASE /* Legacy SMC */ #define AST2400_FMC_BASE 0X1E620000 #define AST2400_SPI_BASE 0X1E630000 #define AST2400_VIC_BASE 0x1E6C0000 #define AST2400_SCU_BASE 0x1E6E2000 #define AST2400_TIMER_BASE 0x1E782000 #define AST2400_I2C_BASE 0x1E78A000 #define AST2400_FMC_FLASH_BASE 0x20000000 #define AST2400_SPI_FLASH_BASE 0x30000000 #define AST2400_A0_SILICON_REV 0x02000303 static const int uart_irqs[] = { 9, 32, 33, 34, 10 }; static const int timer_irqs[] = { 16, 17, 18, 35, 36, 37, 38, 39, }; /* * IO handlers: simply catch any reads/writes to IO addresses that aren't * handled by a device mapping. */ static uint64_t ast2400_io_read(void *p, hwaddr offset, unsigned size) { qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " [%u]\n", __func__, offset, size); return 0; } static void ast2400_io_write(void *opaque, hwaddr offset, uint64_t value, unsigned size) { qemu_log_mask(LOG_UNIMP, "%s: 0x%" HWADDR_PRIx " <- 0x%" PRIx64 " [%u]\n", __func__, offset, value, size); } static const MemoryRegionOps ast2400_io_ops = { .read = ast2400_io_read, .write = ast2400_io_write, .endianness = DEVICE_LITTLE_ENDIAN, }; static void ast2400_init(Object *obj) { AST2400State *s = AST2400(obj); s->cpu = cpu_arm_init("arm926"); object_initialize(&s->vic, sizeof(s->vic), TYPE_ASPEED_VIC); object_property_add_child(obj, "vic", OBJECT(&s->vic), NULL); qdev_set_parent_bus(DEVICE(&s->vic), sysbus_get_default()); object_initialize(&s->timerctrl, sizeof(s->timerctrl), TYPE_ASPEED_TIMER); object_property_add_child(obj, "timerctrl", OBJECT(&s->timerctrl), NULL); qdev_set_parent_bus(DEVICE(&s->timerctrl), sysbus_get_default()); object_initialize(&s->i2c, sizeof(s->i2c), TYPE_ASPEED_I2C); object_property_add_child(obj, "i2c", OBJECT(&s->i2c), NULL); qdev_set_parent_bus(DEVICE(&s->i2c), sysbus_get_default()); object_initialize(&s->scu, sizeof(s->scu), TYPE_ASPEED_SCU); object_property_add_child(obj, "scu", OBJECT(&s->scu), NULL); qdev_set_parent_bus(DEVICE(&s->scu), sysbus_get_default()); qdev_prop_set_uint32(DEVICE(&s->scu), "silicon-rev", AST2400_A0_SILICON_REV); object_property_add_alias(obj, "hw-strap1", OBJECT(&s->scu), "hw-strap1", &error_abort); object_property_add_alias(obj, "hw-strap2", OBJECT(&s->scu), "hw-strap2", &error_abort); object_initialize(&s->smc, sizeof(s->smc), "aspeed.smc.fmc"); object_property_add_child(obj, "smc", OBJECT(&s->smc), NULL); qdev_set_parent_bus(DEVICE(&s->smc), sysbus_get_default()); object_initialize(&s->spi, sizeof(s->spi), "aspeed.smc.spi"); object_property_add_child(obj, "spi", OBJECT(&s->spi), NULL); qdev_set_parent_bus(DEVICE(&s->spi), sysbus_get_default()); } static void ast2400_realize(DeviceState *dev, Error **errp) { int i; AST2400State *s = AST2400(dev); Error *err = NULL, *local_err = NULL; /* IO space */ memory_region_init_io(&s->iomem, NULL, &ast2400_io_ops, NULL, "ast2400.io", AST2400_IOMEM_SIZE); memory_region_add_subregion_overlap(get_system_memory(), AST2400_IOMEM_BASE, &s->iomem, -1); /* VIC */ object_property_set_bool(OBJECT(&s->vic), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->vic), 0, AST2400_VIC_BASE); sysbus_connect_irq(SYS_BUS_DEVICE(&s->vic), 0, qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_IRQ)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->vic), 1, qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_FIQ)); /* Timer */ object_property_set_bool(OBJECT(&s->timerctrl), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->timerctrl), 0, AST2400_TIMER_BASE); for (i = 0; i < ARRAY_SIZE(timer_irqs); i++) { qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->vic), timer_irqs[i]); sysbus_connect_irq(SYS_BUS_DEVICE(&s->timerctrl), i, irq); } /* SCU */ object_property_set_bool(OBJECT(&s->scu), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->scu), 0, AST2400_SCU_BASE); /* UART - attach an 8250 to the IO space as our UART5 */ if (serial_hds[0]) { qemu_irq uart5 = qdev_get_gpio_in(DEVICE(&s->vic), uart_irqs[4]); serial_mm_init(&s->iomem, AST2400_UART_5_BASE, 2, uart5, 38400, serial_hds[0], DEVICE_LITTLE_ENDIAN); } /* I2C */ object_property_set_bool(OBJECT(&s->i2c), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c), 0, AST2400_I2C_BASE); sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c), 0, qdev_get_gpio_in(DEVICE(&s->vic), 12)); /* SMC */ object_property_set_int(OBJECT(&s->smc), 1, "num-cs", &err); object_property_set_bool(OBJECT(&s->smc), true, "realized", &local_err); error_propagate(&err, local_err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->smc), 0, AST2400_FMC_BASE); sysbus_mmio_map(SYS_BUS_DEVICE(&s->smc), 1, AST2400_FMC_FLASH_BASE); sysbus_connect_irq(SYS_BUS_DEVICE(&s->smc), 0, qdev_get_gpio_in(DEVICE(&s->vic), 19)); /* SPI */ object_property_set_int(OBJECT(&s->spi), 1, "num-cs", &err); object_property_set_bool(OBJECT(&s->spi), true, "realized", &local_err); error_propagate(&err, local_err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi), 0, AST2400_SPI_BASE); sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi), 1, AST2400_SPI_FLASH_BASE); } static void ast2400_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = ast2400_realize; /* * Reason: creates an ARM CPU, thus use after free(), see * arm_cpu_class_init() */ dc->cannot_destroy_with_object_finalize_yet = true; } static const TypeInfo ast2400_type_info = { .name = TYPE_AST2400, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(AST2400State), .instance_init = ast2400_init, .class_init = ast2400_class_init, }; static void ast2400_register_types(void) { type_register_static(&ast2400_type_info); } type_init(ast2400_register_types)