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qemu/hw/arm/fsl-imx6.c
Bernhard Beschow 1b326f278d hw/pci-host/designware: Expose MSI IRQ 
Fixes INTD and MSI interrupts poking the same IRQ line without keeping track of
each other's IRQ level. Furthermore, SoCs such as the i.MX 8M Plus don't share
the MSI IRQ with the INTx lines, so expose it as a dedicated pin.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2025-01-27 13:50:14 +00:00

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/*
* Copyright (c) 2015 Jean-Christophe Dubois <jcd@tribudubois.net>
*
* i.MX6 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-imx6.h"
#include "hw/misc/unimp.h"
#include "hw/usb/imx-usb-phy.h"
#include "hw/boards.h"
#include "hw/qdev-properties.h"
#include "system/system.h"
#include "chardev/char.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "target/arm/cpu-qom.h"
#define IMX6_ESDHC_CAPABILITIES 0x057834b4
#define NAME_SIZE 20
static void fsl_imx6_init(Object *obj)
{
MachineState *ms = MACHINE(qdev_get_machine());
FslIMX6State *s = FSL_IMX6(obj);
char name[NAME_SIZE];
int i;
for (i = 0; i < MIN(ms->smp.cpus, FSL_IMX6_NUM_CPUS); i++) {
snprintf(name, NAME_SIZE, "cpu%d", i);
object_initialize_child(obj, name, &s->cpu[i],
ARM_CPU_TYPE_NAME("cortex-a9"));
}
object_initialize_child(obj, "a9mpcore", &s->a9mpcore, TYPE_A9MPCORE_PRIV);
object_initialize_child(obj, "ccm", &s->ccm, TYPE_IMX6_CCM);
object_initialize_child(obj, "src", &s->src, TYPE_IMX6_SRC);
object_initialize_child(obj, "snvs", &s->snvs, TYPE_IMX7_SNVS);
for (i = 0; i < FSL_IMX6_NUM_UARTS; i++) {
snprintf(name, NAME_SIZE, "uart%d", i + 1);
object_initialize_child(obj, name, &s->uart[i], TYPE_IMX_SERIAL);
}
object_initialize_child(obj, "gpt", &s->gpt, TYPE_IMX6_GPT);
for (i = 0; i < FSL_IMX6_NUM_EPITS; i++) {
snprintf(name, NAME_SIZE, "epit%d", i + 1);
object_initialize_child(obj, name, &s->epit[i], TYPE_IMX_EPIT);
}
for (i = 0; i < FSL_IMX6_NUM_I2CS; i++) {
snprintf(name, NAME_SIZE, "i2c%d", i + 1);
object_initialize_child(obj, name, &s->i2c[i], TYPE_IMX_I2C);
}
for (i = 0; i < FSL_IMX6_NUM_GPIOS; i++) {
snprintf(name, NAME_SIZE, "gpio%d", i + 1);
object_initialize_child(obj, name, &s->gpio[i], TYPE_IMX_GPIO);
}
for (i = 0; i < FSL_IMX6_NUM_ESDHCS; i++) {
snprintf(name, NAME_SIZE, "sdhc%d", i + 1);
object_initialize_child(obj, name, &s->esdhc[i], TYPE_IMX_USDHC);
}
for (i = 0; i < FSL_IMX6_NUM_USB_PHYS; i++) {
snprintf(name, NAME_SIZE, "usbphy%d", i);
object_initialize_child(obj, name, &s->usbphy[i], TYPE_IMX_USBPHY);
}
for (i = 0; i < FSL_IMX6_NUM_USBS; i++) {
snprintf(name, NAME_SIZE, "usb%d", i);
object_initialize_child(obj, name, &s->usb[i], TYPE_CHIPIDEA);
}
for (i = 0; i < FSL_IMX6_NUM_ECSPIS; i++) {
snprintf(name, NAME_SIZE, "spi%d", i + 1);
object_initialize_child(obj, name, &s->spi[i], TYPE_IMX_SPI);
}
for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) {
snprintf(name, NAME_SIZE, "wdt%d", i);
object_initialize_child(obj, name, &s->wdt[i], TYPE_IMX2_WDT);
}
object_initialize_child(obj, "eth", &s->eth, TYPE_IMX_ENET);
object_initialize_child(obj, "pcie", &s->pcie, TYPE_DESIGNWARE_PCIE_HOST);
object_initialize_child(obj, "pcie4-msi-irq", &s->pcie4_msi_irq,
TYPE_OR_IRQ);
}
static void fsl_imx6_realize(DeviceState *dev, Error **errp)
{
MachineState *ms = MACHINE(qdev_get_machine());
FslIMX6State *s = FSL_IMX6(dev);
uint16_t i;
qemu_irq irq;
unsigned int smp_cpus = ms->smp.cpus;
if (smp_cpus > FSL_IMX6_NUM_CPUS) {
error_setg(errp, "%s: Only %d CPUs are supported (%d requested)",
TYPE_FSL_IMX6, FSL_IMX6_NUM_CPUS, smp_cpus);
return;
}
for (i = 0; i < smp_cpus; i++) {
/* On uniprocessor, the CBAR is set to 0 */
if (smp_cpus > 1) {
object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
FSL_IMX6_A9MPCORE_ADDR, &error_abort);
}
/* All CPU but CPU 0 start in power off mode */
if (i) {
object_property_set_bool(OBJECT(&s->cpu[i]), "start-powered-off",
true, &error_abort);
}
if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
return;
}
}
object_property_set_int(OBJECT(&s->a9mpcore), "num-cpu", smp_cpus,
&error_abort);
object_property_set_int(OBJECT(&s->a9mpcore), "num-irq",
FSL_IMX6_MAX_IRQ + GIC_INTERNAL, &error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->a9mpcore), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->a9mpcore), 0, FSL_IMX6_A9MPCORE_ADDR);
for (i = 0; i < smp_cpus; i++) {
sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i,
qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i + smp_cpus,
qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_FIQ));
}
/* L2 cache controller */
sysbus_create_simple("l2x0", FSL_IMX6_PL310_ADDR, NULL);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->ccm), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccm), 0, FSL_IMX6_CCM_ADDR);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->src), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->src), 0, FSL_IMX6_SRC_ADDR);
/* Initialize all UARTs */
for (i = 0; i < FSL_IMX6_NUM_UARTS; i++) {
static const struct {
hwaddr addr;
unsigned int irq;
} serial_table[FSL_IMX6_NUM_UARTS] = {
{ FSL_IMX6_UART1_ADDR, FSL_IMX6_UART1_IRQ },
{ FSL_IMX6_UART2_ADDR, FSL_IMX6_UART2_IRQ },
{ FSL_IMX6_UART3_ADDR, FSL_IMX6_UART3_IRQ },
{ FSL_IMX6_UART4_ADDR, FSL_IMX6_UART4_IRQ },
{ FSL_IMX6_UART5_ADDR, FSL_IMX6_UART5_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->a9mpcore),
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_IMX6_GPT_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpt), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
FSL_IMX6_GPT_IRQ));
/* Initialize all EPIT timers */
for (i = 0; i < FSL_IMX6_NUM_EPITS; i++) {
static const struct {
hwaddr addr;
unsigned int irq;
} epit_table[FSL_IMX6_NUM_EPITS] = {
{ FSL_IMX6_EPIT1_ADDR, FSL_IMX6_EPIT1_IRQ },
{ FSL_IMX6_EPIT2_ADDR, FSL_IMX6_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->a9mpcore),
epit_table[i].irq));
}
/* Initialize all I2C */
for (i = 0; i < FSL_IMX6_NUM_I2CS; i++) {
static const struct {
hwaddr addr;
unsigned int irq;
} i2c_table[FSL_IMX6_NUM_I2CS] = {
{ FSL_IMX6_I2C1_ADDR, FSL_IMX6_I2C1_IRQ },
{ FSL_IMX6_I2C2_ADDR, FSL_IMX6_I2C2_IRQ },
{ FSL_IMX6_I2C3_ADDR, FSL_IMX6_I2C3_IRQ }
};
if (!sysbus_realize(SYS_BUS_DEVICE(&s->i2c[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c[i]), 0, i2c_table[i].addr);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
i2c_table[i].irq));
}
/* Initialize all GPIOs */
for (i = 0; i < FSL_IMX6_NUM_GPIOS; i++) {
static const struct {
hwaddr addr;
unsigned int irq_low;
unsigned int irq_high;
} gpio_table[FSL_IMX6_NUM_GPIOS] = {
{
FSL_IMX6_GPIO1_ADDR,
FSL_IMX6_GPIO1_LOW_IRQ,
FSL_IMX6_GPIO1_HIGH_IRQ
},
{
FSL_IMX6_GPIO2_ADDR,
FSL_IMX6_GPIO2_LOW_IRQ,
FSL_IMX6_GPIO2_HIGH_IRQ
},
{
FSL_IMX6_GPIO3_ADDR,
FSL_IMX6_GPIO3_LOW_IRQ,
FSL_IMX6_GPIO3_HIGH_IRQ
},
{
FSL_IMX6_GPIO4_ADDR,
FSL_IMX6_GPIO4_LOW_IRQ,
FSL_IMX6_GPIO4_HIGH_IRQ
},
{
FSL_IMX6_GPIO5_ADDR,
FSL_IMX6_GPIO5_LOW_IRQ,
FSL_IMX6_GPIO5_HIGH_IRQ
},
{
FSL_IMX6_GPIO6_ADDR,
FSL_IMX6_GPIO6_LOW_IRQ,
FSL_IMX6_GPIO6_HIGH_IRQ
},
{
FSL_IMX6_GPIO7_ADDR,
FSL_IMX6_GPIO7_LOW_IRQ,
FSL_IMX6_GPIO7_HIGH_IRQ
},
};
object_property_set_bool(OBJECT(&s->gpio[i]), "has-edge-sel", true,
&error_abort);
object_property_set_bool(OBJECT(&s->gpio[i]), "has-upper-pin-irq",
true, &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);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
gpio_table[i].irq_low));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio[i]), 1,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
gpio_table[i].irq_high));
}
/* Initialize all SDHC */
for (i = 0; i < FSL_IMX6_NUM_ESDHCS; i++) {
static const struct {
hwaddr addr;
unsigned int irq;
} esdhc_table[FSL_IMX6_NUM_ESDHCS] = {
{ FSL_IMX6_uSDHC1_ADDR, FSL_IMX6_uSDHC1_IRQ },
{ FSL_IMX6_uSDHC2_ADDR, FSL_IMX6_uSDHC2_IRQ },
{ FSL_IMX6_uSDHC3_ADDR, FSL_IMX6_uSDHC3_IRQ },
{ FSL_IMX6_uSDHC4_ADDR, FSL_IMX6_uSDHC4_IRQ },
};
/* UHS-I SDIO3.0 SDR104 1.8V ADMA */
object_property_set_uint(OBJECT(&s->esdhc[i]), "sd-spec-version", 3,
&error_abort);
object_property_set_uint(OBJECT(&s->esdhc[i]), "capareg",
IMX6_ESDHC_CAPABILITIES, &error_abort);
object_property_set_uint(OBJECT(&s->esdhc[i]), "vendor",
SDHCI_VENDOR_IMX, &error_abort);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->esdhc[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->esdhc[i]), 0, esdhc_table[i].addr);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->esdhc[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
esdhc_table[i].irq));
}
/* USB */
for (i = 0; i < FSL_IMX6_NUM_USB_PHYS; i++) {
sysbus_realize(SYS_BUS_DEVICE(&s->usbphy[i]), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->usbphy[i]), 0,
FSL_IMX6_USBPHY1_ADDR + i * 0x1000);
}
for (i = 0; i < FSL_IMX6_NUM_USBS; i++) {
static const int FSL_IMX6_USBn_IRQ[] = {
FSL_IMX6_USB_OTG_IRQ,
FSL_IMX6_USB_HOST1_IRQ,
FSL_IMX6_USB_HOST2_IRQ,
FSL_IMX6_USB_HOST3_IRQ,
};
sysbus_realize(SYS_BUS_DEVICE(&s->usb[i]), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->usb[i]), 0,
FSL_IMX6_USBOH3_USB_ADDR + i * 0x200);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->usb[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
FSL_IMX6_USBn_IRQ[i]));
}
/* Initialize all ECSPI */
for (i = 0; i < FSL_IMX6_NUM_ECSPIS; i++) {
static const struct {
hwaddr addr;
unsigned int irq;
} spi_table[FSL_IMX6_NUM_ECSPIS] = {
{ FSL_IMX6_eCSPI1_ADDR, FSL_IMX6_ECSPI1_IRQ },
{ FSL_IMX6_eCSPI2_ADDR, FSL_IMX6_ECSPI2_IRQ },
{ FSL_IMX6_eCSPI3_ADDR, FSL_IMX6_ECSPI3_IRQ },
{ FSL_IMX6_eCSPI4_ADDR, FSL_IMX6_ECSPI4_IRQ },
{ FSL_IMX6_eCSPI5_ADDR, FSL_IMX6_ECSPI5_IRQ },
};
/* Initialize the SPI */
if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi[i]), 0, spi_table[i].addr);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
spi_table[i].irq));
}
object_property_set_uint(OBJECT(&s->eth), "phy-num", s->phy_num,
&error_abort);
qemu_configure_nic_device(DEVICE(&s->eth), true, NULL);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->eth), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->eth), 0, FSL_IMX6_ENET_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->eth), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
FSL_IMX6_ENET_MAC_IRQ));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->eth), 1,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
FSL_IMX6_ENET_MAC_1588_IRQ));
/*
* SNVS
*/
sysbus_realize(SYS_BUS_DEVICE(&s->snvs), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->snvs), 0, FSL_IMX6_SNVSHP_ADDR);
/*
* Watchdog
*/
for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) {
static const hwaddr FSL_IMX6_WDOGn_ADDR[FSL_IMX6_NUM_WDTS] = {
FSL_IMX6_WDOG1_ADDR,
FSL_IMX6_WDOG2_ADDR,
};
static const int FSL_IMX6_WDOGn_IRQ[FSL_IMX6_NUM_WDTS] = {
FSL_IMX6_WDOG1_IRQ,
FSL_IMX6_WDOG2_IRQ,
};
object_property_set_bool(OBJECT(&s->wdt[i]), "pretimeout-support",
true, &error_abort);
sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0, FSL_IMX6_WDOGn_ADDR[i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->wdt[i]), 0,
qdev_get_gpio_in(DEVICE(&s->a9mpcore),
FSL_IMX6_WDOGn_IRQ[i]));
}
/*
* PCIe
*/
sysbus_realize(SYS_BUS_DEVICE(&s->pcie), &error_abort);
sysbus_mmio_map(SYS_BUS_DEVICE(&s->pcie), 0, FSL_IMX6_PCIe_REG_ADDR);
object_property_set_int(OBJECT(&s->pcie4_msi_irq), "num-lines", 2,
&error_abort);
qdev_realize(DEVICE(&s->pcie4_msi_irq), NULL, &error_abort);
irq = qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_PCIE4_MSI_IRQ);
qdev_connect_gpio_out(DEVICE(&s->pcie4_msi_irq), 0, irq);
irq = qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_PCIE1_IRQ);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 0, irq);
irq = qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_PCIE2_IRQ);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 1, irq);
irq = qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_PCIE3_IRQ);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 2, irq);
irq = qdev_get_gpio_in(DEVICE(&s->pcie4_msi_irq), 0);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 3, irq);
irq = qdev_get_gpio_in(DEVICE(&s->pcie4_msi_irq), 1);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->pcie), 4, irq);
/*
* PCIe PHY
*/
create_unimplemented_device("pcie-phy", FSL_IMX6_PCIe_ADDR,
FSL_IMX6_PCIe_SIZE);
/* ROM memory */
if (!memory_region_init_rom(&s->rom, OBJECT(dev), "imx6.rom",
FSL_IMX6_ROM_SIZE, errp)) {
return;
}
memory_region_add_subregion(get_system_memory(), FSL_IMX6_ROM_ADDR,
&s->rom);
/* CAAM memory */
if (!memory_region_init_rom(&s->caam, OBJECT(dev), "imx6.caam",
FSL_IMX6_CAAM_MEM_SIZE, errp)) {
return;
}
memory_region_add_subregion(get_system_memory(), FSL_IMX6_CAAM_MEM_ADDR,
&s->caam);
/* OCRAM memory */
if (!memory_region_init_ram(&s->ocram, NULL, "imx6.ocram",
FSL_IMX6_OCRAM_SIZE, errp)) {
return;
}
memory_region_add_subregion(get_system_memory(), FSL_IMX6_OCRAM_ADDR,
&s->ocram);
/* internal OCRAM (256 KB) is aliased over 1 MB */
memory_region_init_alias(&s->ocram_alias, OBJECT(dev), "imx6.ocram_alias",
&s->ocram, 0, FSL_IMX6_OCRAM_ALIAS_SIZE);
memory_region_add_subregion(get_system_memory(), FSL_IMX6_OCRAM_ALIAS_ADDR,
&s->ocram_alias);
}
static const Property fsl_imx6_properties[] = {
DEFINE_PROP_UINT32("fec-phy-num", FslIMX6State, phy_num, 0),
};
static void fsl_imx6_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
device_class_set_props(dc, fsl_imx6_properties);
dc->realize = fsl_imx6_realize;
dc->desc = "i.MX6 SOC";
/* Reason: Uses serial_hd() in the realize() function */
dc->user_creatable = false;
}
static const TypeInfo fsl_imx6_type_info = {
.name = TYPE_FSL_IMX6,
.parent = TYPE_DEVICE,
.instance_size = sizeof(FslIMX6State),
.instance_init = fsl_imx6_init,
.class_init = fsl_imx6_class_init,
};
static void fsl_imx6_register_types(void)
{
type_register_static(&fsl_imx6_type_info);
}
type_init(fsl_imx6_register_types)
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