/* * Copyright (c) 2013 Jean-Christophe Dubois * * i.MX31 SOC emulation. * * Based on hw/arm/fsl-imx31.c * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see . */ #include "qemu/osdep.h" #include "hw/arm/fsl-imx31.h" #include "sysemu/sysemu.h" #include "exec/address-spaces.h" #include "hw/boards.h" #include "sysemu/char.h" static void fsl_imx31_init(Object *obj) { FslIMX31State *s = FSL_IMX31(obj); int i; object_initialize(&s->cpu, sizeof(s->cpu), "arm1136-" TYPE_ARM_CPU); object_initialize(&s->avic, sizeof(s->avic), TYPE_IMX_AVIC); qdev_set_parent_bus(DEVICE(&s->avic), sysbus_get_default()); object_initialize(&s->ccm, sizeof(s->ccm), TYPE_IMX31_CCM); qdev_set_parent_bus(DEVICE(&s->ccm), sysbus_get_default()); for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) { object_initialize(&s->uart[i], sizeof(s->uart[i]), TYPE_IMX_SERIAL); qdev_set_parent_bus(DEVICE(&s->uart[i]), sysbus_get_default()); } object_initialize(&s->gpt, sizeof(s->gpt), TYPE_IMX_GPT); qdev_set_parent_bus(DEVICE(&s->gpt), sysbus_get_default()); for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) { object_initialize(&s->epit[i], sizeof(s->epit[i]), TYPE_IMX_EPIT); qdev_set_parent_bus(DEVICE(&s->epit[i]), sysbus_get_default()); } for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) { object_initialize(&s->i2c[i], sizeof(s->i2c[i]), TYPE_IMX_I2C); qdev_set_parent_bus(DEVICE(&s->i2c[i]), sysbus_get_default()); } for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) { object_initialize(&s->gpio[i], sizeof(s->gpio[i]), TYPE_IMX_GPIO); qdev_set_parent_bus(DEVICE(&s->gpio[i]), sysbus_get_default()); } } static void fsl_imx31_realize(DeviceState *dev, Error **errp) { FslIMX31State *s = FSL_IMX31(dev); uint16_t i; Error *err = NULL; object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err); if (err) { error_propagate(errp, err); return; } object_property_set_bool(OBJECT(&s->avic), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->avic), 0, FSL_IMX31_AVIC_ADDR); sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 0, qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ)); sysbus_connect_irq(SYS_BUS_DEVICE(&s->avic), 1, qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ)); object_property_set_bool(OBJECT(&s->ccm), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX31_CCM_ADDR); /* Initialize all UARTS */ for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) { static const struct { hwaddr addr; unsigned int irq; } serial_table[FSL_IMX31_NUM_UARTS] = { { FSL_IMX31_UART1_ADDR, FSL_IMX31_UART1_IRQ }, { FSL_IMX31_UART2_ADDR, FSL_IMX31_UART2_IRQ }, }; if (i < MAX_SERIAL_PORTS) { CharDriverState *chr; chr = serial_hds[i]; if (!chr) { char label[20]; snprintf(label, sizeof(label), "imx31.uart%d", i); chr = qemu_chr_new(label, "null", NULL); } qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", chr); } object_property_set_bool(OBJECT(&s->uart[i]), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->uart[i]), 0, serial_table[i].addr); sysbus_connect_irq(SYS_BUS_DEVICE(&s->uart[i]), 0, qdev_get_gpio_in(DEVICE(&s->avic), serial_table[i].irq)); } s->gpt.ccm = IMX_CCM(&s->ccm); object_property_set_bool(OBJECT(&s->gpt), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpt), 0, FSL_IMX31_GPT_ADDR); sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt), 0, qdev_get_gpio_in(DEVICE(&s->avic), FSL_IMX31_GPT_IRQ)); /* Initialize all EPIT timers */ for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) { static const struct { hwaddr addr; unsigned int irq; } epit_table[FSL_IMX31_NUM_EPITS] = { { FSL_IMX31_EPIT1_ADDR, FSL_IMX31_EPIT1_IRQ }, { FSL_IMX31_EPIT2_ADDR, FSL_IMX31_EPIT2_IRQ }, }; s->epit[i].ccm = IMX_CCM(&s->ccm); object_property_set_bool(OBJECT(&s->epit[i]), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->epit[i]), 0, epit_table[i].addr); sysbus_connect_irq(SYS_BUS_DEVICE(&s->epit[i]), 0, qdev_get_gpio_in(DEVICE(&s->avic), epit_table[i].irq)); } /* Initialize all I2C */ for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) { static const struct { hwaddr addr; unsigned int irq; } i2c_table[FSL_IMX31_NUM_I2CS] = { { FSL_IMX31_I2C1_ADDR, FSL_IMX31_I2C1_IRQ }, { FSL_IMX31_I2C2_ADDR, FSL_IMX31_I2C2_IRQ }, { FSL_IMX31_I2C3_ADDR, FSL_IMX31_I2C3_IRQ } }; /* Initialize the I2C */ object_property_set_bool(OBJECT(&s->i2c[i]), true, "realized", &err); if (err) { error_propagate(errp, err); return; } /* Map I2C memory */ sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr); /* Connect I2C IRQ to PIC */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0, qdev_get_gpio_in(DEVICE(&s->avic), i2c_table[i].irq)); } /* Initialize all GPIOs */ for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) { static const struct { hwaddr addr; unsigned int irq; } gpio_table[FSL_IMX31_NUM_GPIOS] = { { FSL_IMX31_GPIO1_ADDR, FSL_IMX31_GPIO1_IRQ }, { FSL_IMX31_GPIO2_ADDR, FSL_IMX31_GPIO2_IRQ }, { FSL_IMX31_GPIO3_ADDR, FSL_IMX31_GPIO3_IRQ } }; object_property_set_bool(OBJECT(&s->gpio[i]), false, "has-edge-sel", &error_abort); object_property_set_bool(OBJECT(&s->gpio[i]), true, "realized", &err); if (err) { error_propagate(errp, err); return; } sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio[i]), 0, gpio_table[i].addr); /* Connect GPIO IRQ to PIC */ sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0, qdev_get_gpio_in(DEVICE(&s->avic), gpio_table[i].irq)); } /* On a real system, the first 16k is a `secure boot rom' */ memory_region_init_rom_device(&s->secure_rom, NULL, NULL, NULL, "imx31.secure_rom", FSL_IMX31_SECURE_ROM_SIZE, &err); if (err) { error_propagate(errp, err); return; } memory_region_add_subregion(get_system_memory(), FSL_IMX31_SECURE_ROM_ADDR, &s->secure_rom); /* There is also a 16k ROM */ memory_region_init_rom_device(&s->rom, NULL, NULL, NULL, "imx31.rom", FSL_IMX31_ROM_SIZE, &err); if (err) { error_propagate(errp, err); return; } memory_region_add_subregion(get_system_memory(), FSL_IMX31_ROM_ADDR, &s->rom); /* initialize internal RAM (16 KB) */ memory_region_init_ram(&s->iram, NULL, "imx31.iram", FSL_IMX31_IRAM_SIZE, &err); if (err) { error_propagate(errp, err); return; } memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ADDR, &s->iram); vmstate_register_ram_global(&s->iram); /* internal RAM (16 KB) is aliased over 256 MB - 16 KB */ memory_region_init_alias(&s->iram_alias, NULL, "imx31.iram_alias", &s->iram, 0, FSL_IMX31_IRAM_ALIAS_SIZE); memory_region_add_subregion(get_system_memory(), FSL_IMX31_IRAM_ALIAS_ADDR, &s->iram_alias); } static void fsl_imx31_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = fsl_imx31_realize; /* * Reason: creates an ARM CPU, thus use after free(), see * arm_cpu_class_init() */ dc->cannot_destroy_with_object_finalize_yet = true; dc->desc = "i.MX31 SOC"; } static const TypeInfo fsl_imx31_type_info = { .name = TYPE_FSL_IMX31, .parent = TYPE_DEVICE, .instance_size = sizeof(FslIMX31State), .instance_init = fsl_imx31_init, .class_init = fsl_imx31_class_init, }; static void fsl_imx31_register_types(void) { type_register_static(&fsl_imx31_type_info); } type_init(fsl_imx31_register_types)