diff mbox series

[RFC,22/23] hw/arm: add basic support for the RT500 SoC

Message ID 20240805201719.2345596-23-tavip@google.com (mailing list archive)
State New, archived
Headers show
Series NXP i.MX RT595, ARM SVD and device model unit tests | expand

Commit Message

Octavian Purdila Aug. 5, 2024, 8:17 p.m. UTC
Add basic support for the RT500 SoC. It supports enough peripherals to
run the NXP's microXpresso SDK hello world example.

Signed-off-by: Octavian Purdila <tavip@google.com>
---
 hw/arm/Kconfig         |   8 +
 hw/arm/meson.build     |   1 +
 hw/arm/rt500.c         | 348 +++++++++++++++++++++++++++++++++++++++++
 hw/arm/svd/meson.build |   6 +
 include/hw/arm/rt500.h |  49 ++++++
 5 files changed, 412 insertions(+)
 create mode 100644 hw/arm/rt500.c
 create mode 100644 include/hw/arm/rt500.h

Comments

Philippe Mathieu-Daudé Aug. 6, 2024, 2:51 p.m. UTC | #1
Hi Octavian,

Few comments inlined.

On 5/8/24 22:17, Octavian Purdila wrote:
> Add basic support for the RT500 SoC. It supports enough peripherals to
> run the NXP's microXpresso SDK hello world example.
> 
> Signed-off-by: Octavian Purdila <tavip@google.com>
> ---
>   hw/arm/Kconfig         |   8 +
>   hw/arm/meson.build     |   1 +
>   hw/arm/rt500.c         | 348 +++++++++++++++++++++++++++++++++++++++++
>   hw/arm/svd/meson.build |   6 +
>   include/hw/arm/rt500.h |  49 ++++++
>   5 files changed, 412 insertions(+)
>   create mode 100644 hw/arm/rt500.c
>   create mode 100644 include/hw/arm/rt500.h

If possible please setup scripts/git.orderfile, it help to
review.

> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index 1ad60da7aa..7ffece3dec 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -712,3 +712,11 @@ config ARMSSE
>       select UNIMP
>       select SSE_COUNTER
>       select SSE_TIMER
> +
> +config RT500
> +    bool
> +    select FLEXCOMM
> +    select RT500_CLKCTL0
> +    select RT500_CLKCTL1
> +    select FLEXSPI
> +    select RT500_RSTCTL
> diff --git a/hw/arm/meson.build b/hw/arm/meson.build
> index eb604d00cf..7d827d512c 100644
> --- a/hw/arm/meson.build
> +++ b/hw/arm/meson.build
> @@ -59,6 +59,7 @@ arm_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmuv3.c'))
>   arm_ss.add(when: 'CONFIG_FSL_IMX6UL', if_true: files('fsl-imx6ul.c', 'mcimx6ul-evk.c'))
>   arm_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_soc.c'))
>   arm_ss.add(when: 'CONFIG_XEN', if_true: files('xen_arm.c'))
> +arm_ss.add(when: 'CONFIG_RT500', if_true: files('rt500.c'))
>   
>   system_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmu-common.c'))
>   system_ss.add(when: 'CONFIG_CHEETAH', if_true: files('palm.c'))
> diff --git a/hw/arm/rt500.c b/hw/arm/rt500.c
> new file mode 100644
> index 0000000000..0866ef3ef6
> --- /dev/null
> +++ b/hw/arm/rt500.c
> @@ -0,0 +1,348 @@
> +/*
> + * i.MX RT500 platforms.
> + *
> + * Copyright (c) 2024 Google LLC
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "qapi/error.h"
> +#include "hw/sysbus.h"
> +#include "hw/arm/boot.h"
> +#include "hw/boards.h"
> +#include "hw/irq.h"
> +#include "qemu/log.h"
> +#include "qemu/datadir.h"
> +#include "exec/address-spaces.h"
> +#include "sysemu/reset.h"
> +#include "sysemu/runstate.h"
> +#include "sysemu/sysemu.h"
> +#include "hw/arm/armv7m.h"
> +#include "hw/loader.h"
> +#include "hw/qdev-clock.h"
> +#include "hw/misc/unimp.h"
> +#include "hw/arm/rt500.h"
> +#include "hw/arm/svd/rt500.h"
> +
> +#define MMAP_SRAM_CODE_BASE   (0x0)
> +#define MMAP_SRAM_DATA_BASE   (0x20000000)
> +#define MMAP_SRAM_SIZE        (5 * MiB)
> +#define MMAP_BOOT_ROM_BASE    (0x03000000)
> +#define MMAP_BOOT_ROM_SIZE    (192 * KiB)
> +#define MMAP_SDMA_RAM_BASE    (0x24100000)
> +#define MMAP_SDMA_RAM_SIZE    (32 * KiB)
> +#define MMAP_FLEXSPI0_BASE    (0x08000000)
> +#define MMAP_FLEXSPI0_SIZE    (128 * MiB)
> +#define MMAP_FLEXSPI1_BASE    (0x28000000)
> +#define MMAP_FLEXSPI1_SIZE    (128 * MiB)
> +
> +#define SECURE_OFFSET    (0x10000000)
> +
> +typedef enum MemInfoType {
> +    MEM_RAM,
> +    MEM_ROM,
> +    MEM_ALIAS
> +} MemInfoType;
> +
> +static void do_sys_reset(void *opaque, int n, int level)
> +{
> +    if (level) {
> +        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
> +    }
> +}
> +
> +static void rt500_init(Object *obj)
> +{
> +    RT500State *s = RT500(obj);
> +    int i;
> +
> +    /* Add ARMv7-M device */
> +    object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
> +
> +    for (i = 0; i < RT500_FLEXCOMM_NUM; i++) {
> +        char id[] = "flexcommXX";
> +
> +        snprintf(id, sizeof(id), "flexcomm%d", i);
> +        object_initialize_child(obj, id, &s->flexcomm[i], TYPE_FLEXCOMM);
> +        DEVICE(&s->flexcomm[i])->id = g_strdup(id);

Directly g_strdup_printf().

> +    }
> +
> +    object_initialize_child(obj, "clkctl0", &s->clkctl0, TYPE_RT500_CLKCTL0);
> +    object_initialize_child(obj, "clkctl1", &s->clkctl1, TYPE_RT500_CLKCTL1);
> +
> +    /* Initialize clocks */
> +    s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
> +    s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0);
> +
> +    for (i = 0; i < RT500_FLEXSPI_NUM; i++) {
> +        char id[] = "flexspiXX";
> +
> +        snprintf(id, sizeof(id), "flexspi%d", i);
> +        object_initialize_child(obj, id, &s->flexspi[i], TYPE_FLEXSPI);
> +        DEVICE(&s->flexspi[i])->id = g_strdup(id);
> +    }
> +
> +    for (i = 0; i < RT500_RSTCTL_NUM; i++) {
> +        char id[] = "rstctlX";
> +
> +        snprintf(id, sizeof(id), "rstctl%d", i);
> +        object_initialize_child(obj, id, &s->rstctl[i],
> +                                TYPE_RT500_RSTCTL);
> +        DEVICE(&s->rstctl[i])->id = g_strdup(id);
> +    }
> +}
> +
> +static void rt500_realize_memory(RT500State *s, Error **errp)
> +{

static

> +    const struct {
> +        const char *name;
> +        hwaddr base;
> +        size_t size;
> +        MemInfoType type;
> +        int alias_for;
> +    } mem_info[] = {
> +        {
> +            .name = "SRAM (code bus)",
> +            .base = MMAP_SRAM_CODE_BASE,
> +            .size = MMAP_SRAM_SIZE,
> +            .type = MEM_RAM,
> +        },
> +        {
> +            .name = "BOOT-ROM",
> +            .base = MMAP_BOOT_ROM_BASE,
> +            .size = MMAP_BOOT_ROM_SIZE,
> +            .type = MEM_ROM,
> +        },
> +        {
> +            .name = "Smart DMA RAM",
> +            .base = MMAP_SDMA_RAM_BASE,
> +            .size = MMAP_SDMA_RAM_SIZE,
> +            .type = MEM_RAM,
> +        },
> +        {
> +            .name = "SRAM (data bus)",
> +            .base = MMAP_SRAM_DATA_BASE,
> +            .size = MMAP_SRAM_SIZE,
> +            .type = MEM_ALIAS,
> +            .alias_for = 0
> +        },
> +    };
> +    int i;
> +
> +    s->mem = g_malloc_n(2 * ARRAY_SIZE(mem_info), sizeof(MemoryRegion));
> +    for (i = 0; i < ARRAY_SIZE(mem_info); i++) {
> +        const char *name = mem_info[i].name;
> +        int size = mem_info[i].size;
> +        int type = mem_info[i].type;
> +        int alias_for = mem_info[i].alias_for;
> +        MemoryRegion *mem = &s->mem[i];
> +        uint32_t base = mem_info[i].base;
> +        MemoryRegion *sec_mem;
> +        char sec_name[256];
> +
> +        switch (type) {
> +        case MEM_RAM:
> +            memory_region_init_ram(mem, OBJECT(s), name, size, errp);
> +            break;
> +        case MEM_ROM:
> +            memory_region_init_rom(mem, OBJECT(s), name, size, errp);
> +            break;
> +        case MEM_ALIAS:
> +        {
> +            MemoryRegion *orig = &s->mem[alias_for];
> +
> +            memory_region_init_alias(mem, OBJECT(s), name, orig, 0, size);
> +            break;
> +        }
> +        default:
> +            g_assert_not_reached();
> +        }
> +
> +        memory_region_add_subregion(get_system_memory(), base, mem);
> +
> +        /* create secure alias */
> +        snprintf(sec_name, sizeof(sec_name), "SECURE %s", name);
> +        sec_mem = &s->mem[ARRAY_SIZE(mem_info) + i];
> +        if (type == MEM_ALIAS) {
> +            mem = &s->mem[alias_for];
> +        }
> +        memory_region_init_alias(sec_mem, OBJECT(s), sec_name, mem, 0, size);
> +        memory_region_add_subregion(get_system_memory(), base + SECURE_OFFSET,
> +                                    sec_mem);
> +
> +        if (mem_info[i].type == MEM_ROM) {
> +            char *fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, "rt500.rom");
> +
> +            if (fname) {
> +                int fsize = get_image_size(fname);
> +                int ret;
> +
> +                if (fsize > size) {
> +                    error_setg(errp, "rom file too big: %d > %d", fsize, size);
> +                } else {
> +                    ret = load_image_targphys(fname, base, size);
> +                    if (ret < 0) {
> +                        error_setg(errp, "could not load rom: %s", fname);
> +                    }
> +                }
> +            }
> +            g_free(fname);
> +        }
> +    }
> +}
> +
> +static void rt500_realize(DeviceState *dev, Error **errp)
> +{
> +    MachineState *ms = MACHINE(qdev_get_machine());
> +    RT500State *s = RT500(dev);
> +    int i;

Preferably reduce iterator variables scope.

> +
> +    rt500_realize_memory(s, errp);
> +
> +    /* Setup ARMv7M CPU */
> +    qdev_prop_set_uint32(DEVICE(&s->armv7m), "num-irq",
> +                         RT500_FLEXCOMM16_IRQn + 1);

Preferably a definition:

#define RT500_NUM_IRQ (RT500_FLEXCOMM16_IRQn + 1)

> +    qdev_prop_set_uint8(DEVICE(&s->armv7m), "num-prio-bits", 3);
> +    qdev_prop_set_string(DEVICE(&s->armv7m), "cpu-type", ms->cpu_type);

Do you plan to add RT500 machines not based on the Cortex-M33?
Otherwise simpler to hardcode the CPU type here.

> +    object_property_set_link(OBJECT(&s->armv7m), "memory",
> +                             OBJECT(get_system_memory()), &error_abort);
> +    if (!ms->kernel_filename) {
> +        qdev_prop_set_uint32(DEVICE(&s->armv7m), "init-nsvtor",
> +                             MMAP_BOOT_ROM_BASE);
> +        qdev_prop_set_uint32(DEVICE(&s->armv7m), "init-svtor",
> +                             MMAP_BOOT_ROM_BASE + SECURE_OFFSET);
> +    }
> +
> +    qdev_connect_clock_in(DEVICE(&s->armv7m), "cpuclk", s->sysclk);
> +    qdev_connect_clock_in(DEVICE(&s->armv7m), "refclk",
> +                     qdev_get_clock_out(DEVICE(&s->clkctl0), "systick_clk"));
> +
> +    sysbus_realize_and_unref(SYS_BUS_DEVICE(&s->armv7m), errp);
> +    qdev_connect_gpio_out_named(DEVICE(&s->armv7m), "SYSRESETREQ", 0,
> +                                qemu_allocate_irq(&do_sys_reset, NULL, 0));
> +
> +    /* Setup FLEXCOMM */
> +    for (i = 0; i < RT500_FLEXCOMM_NUM; i++) {
> +        const uint32_t addr[] = {

static

> +            RT500_FLEXCOMM0_BASE, RT500_FLEXCOMM1_BASE, RT500_FLEXCOMM2_BASE,
> +            RT500_FLEXCOMM3_BASE, RT500_FLEXCOMM4_BASE, RT500_FLEXCOMM5_BASE,
> +            RT500_FLEXCOMM6_BASE, RT500_FLEXCOMM7_BASE, RT500_FLEXCOMM8_BASE,
> +            RT500_FLEXCOMM8_BASE, RT500_FLEXCOMM10_BASE, RT500_FLEXCOMM11_BASE,
> +            RT500_FLEXCOMM12_BASE, RT500_FLEXCOMM13_BASE, RT500_FLEXCOMM14_BASE,
> +            RT500_FLEXCOMM15_BASE, RT500_FLEXCOMM16_BASE
> +        };
> +        const int irq[] = {
> +            RT500_FLEXCOMM0_IRQn, RT500_FLEXCOMM1_IRQn, RT500_FLEXCOMM2_IRQn,
> +            RT500_FLEXCOMM3_IRQn, RT500_FLEXCOMM4_IRQn, RT500_FLEXCOMM5_IRQn,
> +            RT500_FLEXCOMM6_IRQn, RT500_FLEXCOMM7_IRQn, RT500_FLEXCOMM8_IRQn,
> +            RT500_FLEXCOMM9_IRQn, RT500_FLEXCOMM10_IRQn, RT500_FLEXCOMM11_IRQn,
> +            RT500_FLEXCOMM12_IRQn, RT500_FLEXCOMM13_IRQn, RT500_FLEXCOMM14_IRQn,
> +            RT500_FLEXCOMM15_IRQn, RT500_FLEXCOMM16_IRQn
> +        };
> +        const int functions[] = {
> +            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
> +            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
> +            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
> +            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
> +            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_HSSPI,
> +            FLEXCOMM_PMICI2C, FLEXCOMM_HSSPI
> +        };
> +        DeviceState *ds = DEVICE(&s->flexcomm[i]);
> +        char id[] = "flexcommXX";
> +
> +        snprintf(id, sizeof(id), "flexcomm%d", i);
> +        qdev_prop_set_uint32(ds, "functions", functions[i]);
> +        qdev_prop_set_chr(ds, "chardev", qemu_chr_find(id));
> +        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
> +        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
> +        sysbus_connect_irq(SYS_BUS_DEVICE(ds), 0,
> +                           qdev_get_gpio_in(DEVICE(&s->armv7m), irq[i]));
> +    }
> +
> +    /* Setup CTLCTL0 */
> +    qdev_connect_clock_in(DEVICE(&s->clkctl0), "sysclk", s->sysclk);
> +    sysbus_realize_and_unref(SYS_BUS_DEVICE(DEVICE(&s->clkctl0)), errp);
> +    sysbus_mmio_map(SYS_BUS_DEVICE(DEVICE(&s->clkctl0)), 0, RT500_CLKCTL0_BASE);
> +
> +    /* Setup CTLCTL1 */
> +    qdev_connect_clock_in(DEVICE(&s->clkctl1), "sysclk", s->sysclk);
> +    sysbus_realize_and_unref(SYS_BUS_DEVICE(DEVICE(&s->clkctl1)), errp);
> +    sysbus_mmio_map(SYS_BUS_DEVICE(DEVICE(&s->clkctl1)), 0, RT500_CLKCTL1_BASE);
> +
> +    /* Setup FlexSPI */
> +    for (i = 0; i < RT500_FLEXSPI_NUM; i++) {
> +        const uint32_t addr[] = {

static

> +            RT500_FLEXSPI0_BASE, RT500_FLEXSPI1_BASE
> +        };
> +        const uint32_t mmap_base[] = {
> +            MMAP_FLEXSPI0_BASE, MMAP_FLEXSPI1_BASE
> +        };
> +        const uint32_t mmap_size[] = {
> +            MMAP_FLEXSPI0_SIZE, MMAP_FLEXSPI1_SIZE,
> +        };
> +        DeviceState *ds = DEVICE(&s->flexspi[i]);
> +
> +        qdev_prop_set_uint32(ds, "mmap_base", mmap_base[i]);
> +        qdev_prop_set_uint32(ds, "mmap_size", mmap_size[i]);
> +        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
> +        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
> +    }
> +
> +    /* Setup reset controllers */
> +    for (i = 0; i < RT500_RSTCTL_NUM; i++) {
> +        DeviceState *ds = DEVICE(&s->rstctl[i]);
> +
> +        const uint32_t addr[] = {

static

> +            RT500_RSTCTL0_BASE, RT500_RSTCTL1_BASE
> +        };
> +
> +        qdev_prop_set_uint32(ds, "num", i);
> +        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
> +        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
> +    }
> +}
> +
> +static void rt500_finalize(Object *obj)
> +{
> +    RT500State *s = RT500(obj);
> +
> +    g_free(s->mem);

Allocated via rt500_realize() -> rt500_realize_memory() so
to be released in a DeviceUnrealize() handler.

> +}
> +
> +static void rt500_reset(DeviceState *ds)
> +{
> +}
> +
> +static Property rt500_properties[] = {

To be filled later?

> +    DEFINE_PROP_END_OF_LIST(),
> +};
> +
> +static void rt500_class_init(ObjectClass *oc, void *data)
> +{
> +    DeviceClass *dc = DEVICE_CLASS(oc);
> +
> +    device_class_set_props(dc, rt500_properties);
> +    dc->realize = rt500_realize;
> +    dc->desc = "RT500 (ARM Cortex-M33)";
> +    dc->reset = rt500_reset;
> +}
> +
> +static const TypeInfo rt500_type_info = {
> +    .name = TYPE_RT500,
> +    .parent = TYPE_SYS_BUS_DEVICE,
> +    .instance_size = sizeof(RT500State),
> +    .instance_init = rt500_init,
> +    .instance_finalize = rt500_finalize,
> +    .class_init = rt500_class_init,
> +};
> +
> +static void rt500_register_types(void)
> +{
> +    type_register_static(&rt500_type_info);

Preferably use the DEFINE_TYPES() macro.

> +}
> +
> +type_init(rt500_register_types)
> diff --git a/hw/arm/svd/meson.build b/hw/arm/svd/meson.build
> index 72a7421c6f..930a8b7343 100644
> --- a/hw/arm/svd/meson.build
> +++ b/hw/arm/svd/meson.build
> @@ -34,3 +34,9 @@ genh += custom_target('rt500_rstctl1.h',
>                         output: 'rt500_rstctl1.h',
>                         input: 'MIMXRT595S_cm33.xml',
>                         command: [ svd_gen_header, '-i', '@INPUT@', '-o', '@OUTPUT@', '-p', 'RSTCTL1', '-t', 'RT500_RSTCTL1'])
> +genh += custom_target('rt500.h',
> +                      output: 'rt500.h',
> +                      input: 'MIMXRT595S_cm33.xml',
> +                      command: [ svd_gen_header,'-i', '@INPUT@', '-o', '@OUTPUT@', '-s', 'RT500',
> +		                 '-p', 'FLEXCOMM0', '-p', 'CLKCTL0', '-p', 'CLKCTL1',
> +				 '-p', 'FLEXSPI0', '-p', 'FLEXSPI1', '-p', 'RSTCTL0', '-p', 'RSTCTL1'])
> diff --git a/include/hw/arm/rt500.h b/include/hw/arm/rt500.h
> new file mode 100644
> index 0000000000..8ca7972f8a
> --- /dev/null
> +++ b/include/hw/arm/rt500.h
> @@ -0,0 +1,49 @@
> +/*
> + * i.MX RT500 platforms.
> + *
> + * Copyright (c) 2024 Google LLC
> + *
> + * SPDX-License-Identifier: GPL-2.0-or-later
> + *
> + * Contributions after 2012-01-13 are licensed under the terms of the
> + * GNU GPL, version 2 or (at your option) any later version.
> + */
> +
> +#ifndef HW_ARM_RT500_H
> +#define HW_ARM_RT500_H
> +
> +#include "qemu/osdep.h"

No osdep.h in header.

> +#include "qemu/units.h"

Not used (move to source).

> +#include "hw/arm/boot.h"

Not used.

> +#include "hw/arm/armv7m.h"
> +#include "hw/misc/flexcomm.h"
> +#include "hw/misc/rt500_clkctl0.h"
> +#include "hw/misc/rt500_clkctl1.h"
> +#include "hw/ssi/flexspi.h"
> +#include "hw/misc/rt500_rstctl.h"
> +
> +#define TYPE_RT500 "rt500"
> +#define RT500(obj) OBJECT_CHECK(RT500State, (obj), TYPE_RT500)
> +
> +#define RT500_FLEXCOMM_NUM (17)
> +#define RT500_FLEXSPI_NUM (2)
> +#define RT500_RSTCTL_NUM (2)
> +
> +typedef struct RT500State {
> +    /*< private >*/
> +    SysBusDevice parent_obj;
> +
> +    /*< public >*/

Please drop private/public comments.

> +    ARMv7MState armv7m;
> +    MemoryRegion *mem;
> +    FlexcommState flexcomm[RT500_FLEXCOMM_NUM];
> +    RT500ClkCtl0State clkctl0;
> +    RT500ClkCtl1State clkctl1;
> +    FlexSpiState flexspi[RT500_FLEXSPI_NUM];
> +    RT500RstCtlState rstctl[RT500_RSTCTL_NUM];
> +
> +    Clock *sysclk;
> +    Clock *refclk;
> +} RT500State;
> +
> +#endif /* HW_ARM_RT500_H */

LGTM,

Phil.
Octavian Purdila Aug. 7, 2024, 11:57 p.m. UTC | #2
On Tue, Aug 6, 2024 at 7:51 AM Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
>
> Hi Octavian,
>
> Few comments inlined.
>

Hi Philippe,

Thank you for the review!

I have queued fixes for all of the patches in the set where
applicable, I'll wait for more feedback on the rest of the patches
before sending v2.
diff mbox series

Patch

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 1ad60da7aa..7ffece3dec 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -712,3 +712,11 @@  config ARMSSE
     select UNIMP
     select SSE_COUNTER
     select SSE_TIMER
+
+config RT500
+    bool
+    select FLEXCOMM
+    select RT500_CLKCTL0
+    select RT500_CLKCTL1
+    select FLEXSPI
+    select RT500_RSTCTL
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
index eb604d00cf..7d827d512c 100644
--- a/hw/arm/meson.build
+++ b/hw/arm/meson.build
@@ -59,6 +59,7 @@  arm_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmuv3.c'))
 arm_ss.add(when: 'CONFIG_FSL_IMX6UL', if_true: files('fsl-imx6ul.c', 'mcimx6ul-evk.c'))
 arm_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_soc.c'))
 arm_ss.add(when: 'CONFIG_XEN', if_true: files('xen_arm.c'))
+arm_ss.add(when: 'CONFIG_RT500', if_true: files('rt500.c'))
 
 system_ss.add(when: 'CONFIG_ARM_SMMUV3', if_true: files('smmu-common.c'))
 system_ss.add(when: 'CONFIG_CHEETAH', if_true: files('palm.c'))
diff --git a/hw/arm/rt500.c b/hw/arm/rt500.c
new file mode 100644
index 0000000000..0866ef3ef6
--- /dev/null
+++ b/hw/arm/rt500.c
@@ -0,0 +1,348 @@ 
+/*
+ * i.MX RT500 platforms.
+ *
+ * Copyright (c) 2024 Google LLC
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "hw/sysbus.h"
+#include "hw/arm/boot.h"
+#include "hw/boards.h"
+#include "hw/irq.h"
+#include "qemu/log.h"
+#include "qemu/datadir.h"
+#include "exec/address-spaces.h"
+#include "sysemu/reset.h"
+#include "sysemu/runstate.h"
+#include "sysemu/sysemu.h"
+#include "hw/arm/armv7m.h"
+#include "hw/loader.h"
+#include "hw/qdev-clock.h"
+#include "hw/misc/unimp.h"
+#include "hw/arm/rt500.h"
+#include "hw/arm/svd/rt500.h"
+
+#define MMAP_SRAM_CODE_BASE   (0x0)
+#define MMAP_SRAM_DATA_BASE   (0x20000000)
+#define MMAP_SRAM_SIZE        (5 * MiB)
+#define MMAP_BOOT_ROM_BASE    (0x03000000)
+#define MMAP_BOOT_ROM_SIZE    (192 * KiB)
+#define MMAP_SDMA_RAM_BASE    (0x24100000)
+#define MMAP_SDMA_RAM_SIZE    (32 * KiB)
+#define MMAP_FLEXSPI0_BASE    (0x08000000)
+#define MMAP_FLEXSPI0_SIZE    (128 * MiB)
+#define MMAP_FLEXSPI1_BASE    (0x28000000)
+#define MMAP_FLEXSPI1_SIZE    (128 * MiB)
+
+#define SECURE_OFFSET    (0x10000000)
+
+typedef enum MemInfoType {
+    MEM_RAM,
+    MEM_ROM,
+    MEM_ALIAS
+} MemInfoType;
+
+static void do_sys_reset(void *opaque, int n, int level)
+{
+    if (level) {
+        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
+    }
+}
+
+static void rt500_init(Object *obj)
+{
+    RT500State *s = RT500(obj);
+    int i;
+
+    /* Add ARMv7-M device */
+    object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
+
+    for (i = 0; i < RT500_FLEXCOMM_NUM; i++) {
+        char id[] = "flexcommXX";
+
+        snprintf(id, sizeof(id), "flexcomm%d", i);
+        object_initialize_child(obj, id, &s->flexcomm[i], TYPE_FLEXCOMM);
+        DEVICE(&s->flexcomm[i])->id = g_strdup(id);
+    }
+
+    object_initialize_child(obj, "clkctl0", &s->clkctl0, TYPE_RT500_CLKCTL0);
+    object_initialize_child(obj, "clkctl1", &s->clkctl1, TYPE_RT500_CLKCTL1);
+
+    /* Initialize clocks */
+    s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
+    s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0);
+
+    for (i = 0; i < RT500_FLEXSPI_NUM; i++) {
+        char id[] = "flexspiXX";
+
+        snprintf(id, sizeof(id), "flexspi%d", i);
+        object_initialize_child(obj, id, &s->flexspi[i], TYPE_FLEXSPI);
+        DEVICE(&s->flexspi[i])->id = g_strdup(id);
+    }
+
+    for (i = 0; i < RT500_RSTCTL_NUM; i++) {
+        char id[] = "rstctlX";
+
+        snprintf(id, sizeof(id), "rstctl%d", i);
+        object_initialize_child(obj, id, &s->rstctl[i],
+                                TYPE_RT500_RSTCTL);
+        DEVICE(&s->rstctl[i])->id = g_strdup(id);
+    }
+}
+
+static void rt500_realize_memory(RT500State *s, Error **errp)
+{
+    const struct {
+        const char *name;
+        hwaddr base;
+        size_t size;
+        MemInfoType type;
+        int alias_for;
+    } mem_info[] = {
+        {
+            .name = "SRAM (code bus)",
+            .base = MMAP_SRAM_CODE_BASE,
+            .size = MMAP_SRAM_SIZE,
+            .type = MEM_RAM,
+        },
+        {
+            .name = "BOOT-ROM",
+            .base = MMAP_BOOT_ROM_BASE,
+            .size = MMAP_BOOT_ROM_SIZE,
+            .type = MEM_ROM,
+        },
+        {
+            .name = "Smart DMA RAM",
+            .base = MMAP_SDMA_RAM_BASE,
+            .size = MMAP_SDMA_RAM_SIZE,
+            .type = MEM_RAM,
+        },
+        {
+            .name = "SRAM (data bus)",
+            .base = MMAP_SRAM_DATA_BASE,
+            .size = MMAP_SRAM_SIZE,
+            .type = MEM_ALIAS,
+            .alias_for = 0
+        },
+    };
+    int i;
+
+    s->mem = g_malloc_n(2 * ARRAY_SIZE(mem_info), sizeof(MemoryRegion));
+    for (i = 0; i < ARRAY_SIZE(mem_info); i++) {
+        const char *name = mem_info[i].name;
+        int size = mem_info[i].size;
+        int type = mem_info[i].type;
+        int alias_for = mem_info[i].alias_for;
+        MemoryRegion *mem = &s->mem[i];
+        uint32_t base = mem_info[i].base;
+        MemoryRegion *sec_mem;
+        char sec_name[256];
+
+        switch (type) {
+        case MEM_RAM:
+            memory_region_init_ram(mem, OBJECT(s), name, size, errp);
+            break;
+        case MEM_ROM:
+            memory_region_init_rom(mem, OBJECT(s), name, size, errp);
+            break;
+        case MEM_ALIAS:
+        {
+            MemoryRegion *orig = &s->mem[alias_for];
+
+            memory_region_init_alias(mem, OBJECT(s), name, orig, 0, size);
+            break;
+        }
+        default:
+            g_assert_not_reached();
+        }
+
+        memory_region_add_subregion(get_system_memory(), base, mem);
+
+        /* create secure alias */
+        snprintf(sec_name, sizeof(sec_name), "SECURE %s", name);
+        sec_mem = &s->mem[ARRAY_SIZE(mem_info) + i];
+        if (type == MEM_ALIAS) {
+            mem = &s->mem[alias_for];
+        }
+        memory_region_init_alias(sec_mem, OBJECT(s), sec_name, mem, 0, size);
+        memory_region_add_subregion(get_system_memory(), base + SECURE_OFFSET,
+                                    sec_mem);
+
+        if (mem_info[i].type == MEM_ROM) {
+            char *fname = qemu_find_file(QEMU_FILE_TYPE_BIOS, "rt500.rom");
+
+            if (fname) {
+                int fsize = get_image_size(fname);
+                int ret;
+
+                if (fsize > size) {
+                    error_setg(errp, "rom file too big: %d > %d", fsize, size);
+                } else {
+                    ret = load_image_targphys(fname, base, size);
+                    if (ret < 0) {
+                        error_setg(errp, "could not load rom: %s", fname);
+                    }
+                }
+            }
+            g_free(fname);
+        }
+    }
+}
+
+static void rt500_realize(DeviceState *dev, Error **errp)
+{
+    MachineState *ms = MACHINE(qdev_get_machine());
+    RT500State *s = RT500(dev);
+    int i;
+
+    rt500_realize_memory(s, errp);
+
+    /* Setup ARMv7M CPU */
+    qdev_prop_set_uint32(DEVICE(&s->armv7m), "num-irq",
+                         RT500_FLEXCOMM16_IRQn + 1);
+    qdev_prop_set_uint8(DEVICE(&s->armv7m), "num-prio-bits", 3);
+    qdev_prop_set_string(DEVICE(&s->armv7m), "cpu-type", ms->cpu_type);
+    object_property_set_link(OBJECT(&s->armv7m), "memory",
+                             OBJECT(get_system_memory()), &error_abort);
+    if (!ms->kernel_filename) {
+        qdev_prop_set_uint32(DEVICE(&s->armv7m), "init-nsvtor",
+                             MMAP_BOOT_ROM_BASE);
+        qdev_prop_set_uint32(DEVICE(&s->armv7m), "init-svtor",
+                             MMAP_BOOT_ROM_BASE + SECURE_OFFSET);
+    }
+
+    qdev_connect_clock_in(DEVICE(&s->armv7m), "cpuclk", s->sysclk);
+    qdev_connect_clock_in(DEVICE(&s->armv7m), "refclk",
+                     qdev_get_clock_out(DEVICE(&s->clkctl0), "systick_clk"));
+
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(&s->armv7m), errp);
+    qdev_connect_gpio_out_named(DEVICE(&s->armv7m), "SYSRESETREQ", 0,
+                                qemu_allocate_irq(&do_sys_reset, NULL, 0));
+
+    /* Setup FLEXCOMM */
+    for (i = 0; i < RT500_FLEXCOMM_NUM; i++) {
+        const uint32_t addr[] = {
+            RT500_FLEXCOMM0_BASE, RT500_FLEXCOMM1_BASE, RT500_FLEXCOMM2_BASE,
+            RT500_FLEXCOMM3_BASE, RT500_FLEXCOMM4_BASE, RT500_FLEXCOMM5_BASE,
+            RT500_FLEXCOMM6_BASE, RT500_FLEXCOMM7_BASE, RT500_FLEXCOMM8_BASE,
+            RT500_FLEXCOMM8_BASE, RT500_FLEXCOMM10_BASE, RT500_FLEXCOMM11_BASE,
+            RT500_FLEXCOMM12_BASE, RT500_FLEXCOMM13_BASE, RT500_FLEXCOMM14_BASE,
+            RT500_FLEXCOMM15_BASE, RT500_FLEXCOMM16_BASE
+        };
+        const int irq[] = {
+            RT500_FLEXCOMM0_IRQn, RT500_FLEXCOMM1_IRQn, RT500_FLEXCOMM2_IRQn,
+            RT500_FLEXCOMM3_IRQn, RT500_FLEXCOMM4_IRQn, RT500_FLEXCOMM5_IRQn,
+            RT500_FLEXCOMM6_IRQn, RT500_FLEXCOMM7_IRQn, RT500_FLEXCOMM8_IRQn,
+            RT500_FLEXCOMM9_IRQn, RT500_FLEXCOMM10_IRQn, RT500_FLEXCOMM11_IRQn,
+            RT500_FLEXCOMM12_IRQn, RT500_FLEXCOMM13_IRQn, RT500_FLEXCOMM14_IRQn,
+            RT500_FLEXCOMM15_IRQn, RT500_FLEXCOMM16_IRQn
+        };
+        const int functions[] = {
+            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
+            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
+            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
+            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_FULL,
+            FLEXCOMM_FULL, FLEXCOMM_FULL, FLEXCOMM_HSSPI,
+            FLEXCOMM_PMICI2C, FLEXCOMM_HSSPI
+        };
+        DeviceState *ds = DEVICE(&s->flexcomm[i]);
+        char id[] = "flexcommXX";
+
+        snprintf(id, sizeof(id), "flexcomm%d", i);
+        qdev_prop_set_uint32(ds, "functions", functions[i]);
+        qdev_prop_set_chr(ds, "chardev", qemu_chr_find(id));
+        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
+        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
+        sysbus_connect_irq(SYS_BUS_DEVICE(ds), 0,
+                           qdev_get_gpio_in(DEVICE(&s->armv7m), irq[i]));
+    }
+
+    /* Setup CTLCTL0 */
+    qdev_connect_clock_in(DEVICE(&s->clkctl0), "sysclk", s->sysclk);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(DEVICE(&s->clkctl0)), errp);
+    sysbus_mmio_map(SYS_BUS_DEVICE(DEVICE(&s->clkctl0)), 0, RT500_CLKCTL0_BASE);
+
+    /* Setup CTLCTL1 */
+    qdev_connect_clock_in(DEVICE(&s->clkctl1), "sysclk", s->sysclk);
+    sysbus_realize_and_unref(SYS_BUS_DEVICE(DEVICE(&s->clkctl1)), errp);
+    sysbus_mmio_map(SYS_BUS_DEVICE(DEVICE(&s->clkctl1)), 0, RT500_CLKCTL1_BASE);
+
+    /* Setup FlexSPI */
+    for (i = 0; i < RT500_FLEXSPI_NUM; i++) {
+        const uint32_t addr[] = {
+            RT500_FLEXSPI0_BASE, RT500_FLEXSPI1_BASE
+        };
+        const uint32_t mmap_base[] = {
+            MMAP_FLEXSPI0_BASE, MMAP_FLEXSPI1_BASE
+        };
+        const uint32_t mmap_size[] = {
+            MMAP_FLEXSPI0_SIZE, MMAP_FLEXSPI1_SIZE,
+        };
+        DeviceState *ds = DEVICE(&s->flexspi[i]);
+
+        qdev_prop_set_uint32(ds, "mmap_base", mmap_base[i]);
+        qdev_prop_set_uint32(ds, "mmap_size", mmap_size[i]);
+        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
+        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
+    }
+
+    /* Setup reset controllers */
+    for (i = 0; i < RT500_RSTCTL_NUM; i++) {
+        DeviceState *ds = DEVICE(&s->rstctl[i]);
+
+        const uint32_t addr[] = {
+            RT500_RSTCTL0_BASE, RT500_RSTCTL1_BASE
+        };
+
+        qdev_prop_set_uint32(ds, "num", i);
+        sysbus_realize_and_unref(SYS_BUS_DEVICE(ds), errp);
+        sysbus_mmio_map(SYS_BUS_DEVICE(ds), 0, addr[i]);
+    }
+}
+
+static void rt500_finalize(Object *obj)
+{
+    RT500State *s = RT500(obj);
+
+    g_free(s->mem);
+}
+
+static void rt500_reset(DeviceState *ds)
+{
+}
+
+static Property rt500_properties[] = {
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void rt500_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    device_class_set_props(dc, rt500_properties);
+    dc->realize = rt500_realize;
+    dc->desc = "RT500 (ARM Cortex-M33)";
+    dc->reset = rt500_reset;
+}
+
+static const TypeInfo rt500_type_info = {
+    .name = TYPE_RT500,
+    .parent = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(RT500State),
+    .instance_init = rt500_init,
+    .instance_finalize = rt500_finalize,
+    .class_init = rt500_class_init,
+};
+
+static void rt500_register_types(void)
+{
+    type_register_static(&rt500_type_info);
+}
+
+type_init(rt500_register_types)
diff --git a/hw/arm/svd/meson.build b/hw/arm/svd/meson.build
index 72a7421c6f..930a8b7343 100644
--- a/hw/arm/svd/meson.build
+++ b/hw/arm/svd/meson.build
@@ -34,3 +34,9 @@  genh += custom_target('rt500_rstctl1.h',
                       output: 'rt500_rstctl1.h',
                       input: 'MIMXRT595S_cm33.xml',
                       command: [ svd_gen_header, '-i', '@INPUT@', '-o', '@OUTPUT@', '-p', 'RSTCTL1', '-t', 'RT500_RSTCTL1'])
+genh += custom_target('rt500.h',
+                      output: 'rt500.h',
+                      input: 'MIMXRT595S_cm33.xml',
+                      command: [ svd_gen_header,'-i', '@INPUT@', '-o', '@OUTPUT@', '-s', 'RT500',
+		                 '-p', 'FLEXCOMM0', '-p', 'CLKCTL0', '-p', 'CLKCTL1',
+				 '-p', 'FLEXSPI0', '-p', 'FLEXSPI1', '-p', 'RSTCTL0', '-p', 'RSTCTL1'])
diff --git a/include/hw/arm/rt500.h b/include/hw/arm/rt500.h
new file mode 100644
index 0000000000..8ca7972f8a
--- /dev/null
+++ b/include/hw/arm/rt500.h
@@ -0,0 +1,49 @@ 
+/*
+ * i.MX RT500 platforms.
+ *
+ * Copyright (c) 2024 Google LLC
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#ifndef HW_ARM_RT500_H
+#define HW_ARM_RT500_H
+
+#include "qemu/osdep.h"
+#include "qemu/units.h"
+#include "hw/arm/boot.h"
+#include "hw/arm/armv7m.h"
+#include "hw/misc/flexcomm.h"
+#include "hw/misc/rt500_clkctl0.h"
+#include "hw/misc/rt500_clkctl1.h"
+#include "hw/ssi/flexspi.h"
+#include "hw/misc/rt500_rstctl.h"
+
+#define TYPE_RT500 "rt500"
+#define RT500(obj) OBJECT_CHECK(RT500State, (obj), TYPE_RT500)
+
+#define RT500_FLEXCOMM_NUM (17)
+#define RT500_FLEXSPI_NUM (2)
+#define RT500_RSTCTL_NUM (2)
+
+typedef struct RT500State {
+    /*< private >*/
+    SysBusDevice parent_obj;
+
+    /*< public >*/
+    ARMv7MState armv7m;
+    MemoryRegion *mem;
+    FlexcommState flexcomm[RT500_FLEXCOMM_NUM];
+    RT500ClkCtl0State clkctl0;
+    RT500ClkCtl1State clkctl1;
+    FlexSpiState flexspi[RT500_FLEXSPI_NUM];
+    RT500RstCtlState rstctl[RT500_RSTCTL_NUM];
+
+    Clock *sysclk;
+    Clock *refclk;
+} RT500State;
+
+#endif /* HW_ARM_RT500_H */