diff options
Diffstat (limited to 'qemu/hw/arm/fsl-imx31.c')
| -rw-r--r-- | qemu/hw/arm/fsl-imx31.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/qemu/hw/arm/fsl-imx31.c b/qemu/hw/arm/fsl-imx31.c new file mode 100644 index 000000000..31a3a8791 --- /dev/null +++ b/qemu/hw/arm/fsl-imx31.c @@ -0,0 +1,287 @@ +/* + * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net> + * + * 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 <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "qemu-common.h" +#include "cpu.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) |