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Mon, 21 Jul 2025 16:18:56 -0400 Received: from DESKTOP-FHFCVTH.localdomain (unknown [IPV6:240e:360:9379:c800:30:bacc:21c0:5559]) by smtp.qiye.163.com (Hmail) with ESMTP id 1cc453b66; Tue, 22 Jul 2025 04:11:37 +0800 (GMT+08:00) From: fanyihao@rt-thread.org To: qemu-devel@nongnu.org Cc: Peter Maydell , Yihao Fan Subject: [PATCH v2 1/3] Add-the-stm32f407-SoC Date: Tue, 22 Jul 2025 04:11:32 +0800 Message-ID: <20250721201134.13270-2-fanyihao@rt-thread.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250721201134.13270-1-fanyihao@rt-thread.org> References: <20250721201134.13270-1-fanyihao@rt-thread.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWS1ZQUlXWQ8JGhUIEh9ZQVkZSUlDVk9IQ0gaTx8ZTh9CTlYVFAkWGhdVEwETFh oSFyQUDg9ZV1kYEgtZQVlJT0seQUhNS0FCSExCQRhDS0tBSEtBGRoYGEFJShhLQU5OTkJZV1kWGg 8SFR0UWUFZT0tIVUpLSUJDQ0lVSktLVUtZBg++ X-HM-Tid: 0a982e9cfe6703a4kunm518c726929260c6 X-HM-MType: 1 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6PjI6Axw4GDEiCDo3Nw8CFTZK DjJPCQxVSlVKTE5ISklDTUJDSUpCVTMWGhIXVR0aFQISExoUOwkPVg8TCR4aH1UUCRxFWVdZEgtZ QVlJT0seQUhNS0FCSExCQRhDS0tBSEtBGRoYGEFJShhLQU5OTkJZV1kIAVlBQ09CQzcG DKIM-Signature: a=rsa-sha256; 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charset="utf-8" From: Yihao Fan This patch introduces a new QEMU machine type for the STM32F407 SoC featuri= ng a Cortex-M4 core. This will be used by the RT-Spark to create a machine. Signed-off-by: Yihao Fan --- MAINTAINERS | 7 ++ hw/arm/Kconfig | 6 ++ hw/arm/meson.build | 1 + hw/arm/stm32f407_soc.c | 130 +++++++++++++++++++++++++++++++++ include/hw/arm/stm32f407_soc.h | 39 ++++++++++ 5 files changed, 183 insertions(+) create mode 100644 hw/arm/stm32f407_soc.c create mode 100644 include/hw/arm/stm32f407_soc.h diff --git a/MAINTAINERS b/MAINTAINERS index d1672fda8d..2744639a8b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1137,6 +1137,13 @@ F: hw/misc/stm32f4xx_exti.c F: hw/misc/stm32_rcc.c F: include/hw/misc/stm32_rcc.h =20 +STM32F407 +M: yanl1229 +M: Yihao Fan +L: qemu-arm@nongnu.org +S: Maintained +F: hw/arm/stm32f407_soc.c + Netduino 2 M: Alistair Francis M: Peter Maydell diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index f543d944c3..4b2f71e6e1 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -392,6 +392,12 @@ config STM32F405_SOC select STM32F4XX_SYSCFG select STM32F4XX_EXTI =20 +config STM32F407_SOC + bool + select ARM_V7M + select STM32F4XX_SYSCFG + select STM32F4XX_EXTI + config B_L475E_IOT01A bool default y diff --git a/hw/arm/meson.build b/hw/arm/meson.build index d90be8f4c9..31621060ba 100644 --- a/hw/arm/meson.build +++ b/hw/arm/meson.build @@ -32,6 +32,7 @@ arm_common_ss.add(when: ['CONFIG_RASPI', 'TARGET_AARCH64'= ], if_true: files('bcm2 arm_common_ss.add(when: 'CONFIG_STM32F100_SOC', if_true: files('stm32f100_= soc.c')) arm_common_ss.add(when: 'CONFIG_STM32F205_SOC', if_true: files('stm32f205_= soc.c')) arm_common_ss.add(when: 'CONFIG_STM32F405_SOC', if_true: files('stm32f405_= soc.c')) +arm_common_ss.add(when: 'CONFIG_STM32F407_SOC', if_true: files('stm32f407_= soc.c')) arm_common_ss.add(when: 'CONFIG_B_L475E_IOT01A', if_true: files('b-l475e-i= ot01a.c')) arm_common_ss.add(when: 'CONFIG_STM32L4X5_SOC', if_true: files('stm32l4x5_= soc.c')) arm_common_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zyn= qmp.c', 'xlnx-zcu102.c')) diff --git a/hw/arm/stm32f407_soc.c b/hw/arm/stm32f407_soc.c new file mode 100644 index 0000000000..0a91d4bb10 --- /dev/null +++ b/hw/arm/stm32f407_soc.c @@ -0,0 +1,130 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "system/address-spaces.h" +#include "system/system.h" +#include "hw/arm/stm32f407_soc.h" +#include "hw/qdev-clock.h" +#include "hw/sd/sd.h" +#include "hw/boards.h" +#include "qom/object.h" +#include "hw/block/flash.h" +#include "hw/misc/unimp.h" + + +static const uint32_t syscfg_addr =3D 0x40013800; +static const uint32_t exti_addr =3D 0x40013C00; +static const int syscfg_irq =3D 71; +static const int exti_irq[] =3D { + 6, 7, 8, 9, 10, 23, 23, 23, 23, 23, 40, + 40, 40, 40, 40, 40 +}; + + +static void stm32f407_soc_initfn(Object *obj) +{ + int i; + + STM32F407State *s =3D STM32F407_SOC(obj); + + object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M); + + object_initialize_child(obj, "syscfg", &s->syscfg, TYPE_STM32F4XX_SYSC= FG); + object_initialize_child(obj, "exti", &s->exti, TYPE_STM32F4XX_EXTI); + + s->sysclk =3D qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0); + s->refclk =3D qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0); +} + +static void stm32f407_soc_realize(DeviceState *dev_soc, Error **errp) +{ + STM32F407State *s =3D STM32F407_SOC(dev_soc); + DeviceState *dev, *armv7m; + SysBusDevice *busdev; + DriveInfo *dinfo; + int i, j; + + MemoryRegion *system_memory =3D get_system_memory(); + + /* + * We use s->refclk internally and only define it with qdev_init_clock= _in() + * so it is correctly parented and not leaked on an init/deinit; it is= not + * intended as an externally exposed clock. + */ + if (clock_has_source(s->refclk)) { + error_setg(errp, "refclk clock must not be wired up by the board c= ode"); + return; + } + + if (!clock_has_source(s->sysclk)) { + error_setg(errp, "sysclk clock must be wired up by the board code"= ); + return; + } + + /* + * TODO: ideally we should model the SoC RCC and its ability to + * change the sysclk frequency and define different sysclk sources. + */ + + /* The refclk always runs at frequency HCLK / 8 */ + clock_set_mul_div(s->refclk, 8, 1); + clock_set_source(s->refclk, s->sysclk); + + + armv7m =3D DEVICE(&s->armv7m); + qdev_prop_set_uint32(armv7m, "num-irq", 98); + qdev_prop_set_string(armv7m, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m4"= )); + qdev_prop_set_bit(armv7m, "enable-bitband", true); + qdev_connect_clock_in(armv7m, "cpuclk", s->sysclk); + qdev_connect_clock_in(armv7m, "refclk", s->refclk); + object_property_set_link(OBJECT(&s->armv7m), "memory", + OBJECT(system_memory), &error_abort); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) { + return; + } + /* System configuration controller */ + dev =3D DEVICE(&s->syscfg); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->syscfg), errp)) { + return; + } + busdev =3D SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, syscfg_addr); + sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, syscfg_irq)); + + /* EXTI device */ + dev =3D DEVICE(&s->exti); + if (!sysbus_realize(SYS_BUS_DEVICE(&s->exti), errp)) { + return; + } + busdev =3D SYS_BUS_DEVICE(dev); + sysbus_mmio_map(busdev, 0, exti_addr); + for (i =3D 0; i < 16; i) { + sysbus_connect_irq(busdev, i, qdev_get_gpio_in(armv7m, exti_irq[i]= )); + } + for (i =3D 0; i < 16; i) { + qdev_connect_gpio_out(DEVICE(&s->syscfg), i, qdev_get_gpio_in(dev,= i)); + } + +} + +static void stm32f407_soc_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + dc->realize =3D stm32f407_soc_realize; +} + +static const TypeInfo stm32f407_soc_info =3D { + .name =3D TYPE_STM32F407_SOC, + .parent =3D TYPE_SYS_BUS_DEVICE, + .instance_size =3D sizeof(STM32F407State), + .instance_init =3D stm32f407_soc_initfn, + .class_init =3D stm32f407_soc_class_init, +}; + +static void stm32f407_soc_types(void) +{ + type_register_static(&stm32f407_soc_info); +} + +type_init(stm32f407_soc_types) diff --git a/include/hw/arm/stm32f407_soc.h b/include/hw/arm/stm32f407_soc.h new file mode 100644 index 0000000000..19191dc44e --- /dev/null +++ b/include/hw/arm/stm32f407_soc.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef STM32F407_SOC_H +#define STM32F407_SOC_H + +#include "hw/or-irq.h" +#include "hw/arm/armv7m.h" +#include "hw/misc/stm32f4xx_syscfg.h" +#include "hw/misc/stm32f4xx_exti.h" + +#include "qom/object.h" + +#define TYPE_STM32F407_SOC "stm32f407-soc" +OBJECT_DECLARE_SIMPLE_TYPE(STM32F407State, STM32F407_SOC) + +#define SYSCFG_BASE_ADDRESS 0x40013800 +#define SYSCFG_IRQ 71 +#define EXIT_BASE_ADDRESS 0x40013C00 +#define FLASH_BASE_ADDRESS 0x8000000 +#define FLASH_SIZE 0x100000 +#define SRAM_BASE_ADDRESS 0x20000000 +#define SRAM_SIZE (192 * 1024) + + +struct STM32F407State { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + + char *kernel_filename; + ARMv7MState armv7m; + + STM32F4xxSyscfgState syscfg; + STM32F4xxExtiState exti; + + Clock *sysclk; + Clock *refclk; +}; + +#endif --=20 2.43.0