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qemu/hw/arm/fsl-imx31.c

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/*
* 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 "hw/arm/fsl-imx31.h"
#include "sysemu/sysemu.h"
#include "exec/address-spaces.h"
#include "hw/qdev-properties.h"
#include "chardev/char.h"
static void fsl_imx31_init(Object *obj)
{
FslIMX31State *s = FSL_IMX31(obj);
int i;
object_initialize_child(obj, "cpu", &s->cpu, ARM_CPU_TYPE_NAME("arm1136"));
object_initialize_child(obj, "avic", &s->avic, TYPE_IMX_AVIC);
object_initialize_child(obj, "ccm", &s->ccm, TYPE_IMX31_CCM);
for (i = 0; i < FSL_IMX31_NUM_UARTS; i++) {
object_initialize_child(obj, "uart[*]", &s->uart[i], TYPE_IMX_SERIAL);
}
object_initialize_child(obj, "gpt", &s->gpt, TYPE_IMX31_GPT);
for (i = 0; i < FSL_IMX31_NUM_EPITS; i++) {
object_initialize_child(obj, "epit[*]", &s->epit[i], TYPE_IMX_EPIT);
}
for (i = 0; i < FSL_IMX31_NUM_I2CS; i++) {
object_initialize_child(obj, "i2c[*]", &s->i2c[i], TYPE_IMX_I2C);
}
for (i = 0; i < FSL_IMX31_NUM_GPIOS; i++) {
object_initialize_child(obj, "gpio[*]", &s->gpio[i], TYPE_IMX_GPIO);
}
object_initialize_child(obj, "wdt", &s->wdt, TYPE_IMX2_WDT);
}
static void fsl_imx31_realize(DeviceState *dev, Error **errp)
{
FslIMX31State *s = FSL_IMX31(dev);
uint16_t i;
Error *err = NULL;
if (!qdev_realize(DEVICE(&s->cpu), NULL, errp)) {
return;
}
if (!sysbus_realize(SYS_BUS_DEVICE(&s->avic), errp)) {
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));
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ccm), errp)) {
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 },
};
qdev_prop_set_chr(DEVICE(&s->uart[i]), "chardev", serial_hd(i));
if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart[i]), errp)) {
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);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpt), errp)) {
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);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->epit[i]), errp)) {
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 */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c[i]), errp)) {
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]), "has-edge-sel", false,
&error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio[i]), errp)) {
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));
}
/* Watchdog */
sysbus_realize(SYS_BUS_DEVICE(&s->wdt), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt), 0, FSL_IMX31_WDT_ADDR);
/* On a real system, the first 16k is a `secure boot rom' */
memory_region_init_rom(&s->secure_rom, OBJECT(dev), "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(&s->rom, OBJECT(dev), "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);
/* internal RAM (16 KB) is aliased over 256 MB - 16 KB */
memory_region_init_alias(&s->iram_alias, OBJECT(dev), "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;
dc->desc = "i.MX31 SOC";
/*
* Reason: uses serial_hds in realize and the kzm board does not
* support multiple CPUs
*/
dc->user_creatable = false;
}
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)
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