@@ -463,6 +463,12 @@ config STM32F405_SOC
select STM32F4XX_SYSCFG
select STM32F4XX_EXTI
+config STM32G000_SOC
+ bool
+ select ARM_V7M
+ select STM32F2XX_USART
+ select STM32F2XX_SPI
+
config B_L475E_IOT01A
bool
default y
@@ -34,6 +34,7 @@ arm_ss.add(when: ['CONFIG_RASPI', 'TARGET_AARCH64'], if_true: files('bcm2838.c',
arm_ss.add(when: 'CONFIG_STM32F100_SOC', if_true: files('stm32f100_soc.c'))
arm_ss.add(when: 'CONFIG_STM32F205_SOC', if_true: files('stm32f205_soc.c'))
arm_ss.add(when: 'CONFIG_STM32F405_SOC', if_true: files('stm32f405_soc.c'))
+arm_ss.add(when: 'CONFIG_STM32G000_SOC', if_true: files('stm32g000_soc.c'))
arm_ss.add(when: 'CONFIG_B_L475E_IOT01A', if_true: files('b-l475e-iot01a.c'))
arm_ss.add(when: 'CONFIG_STM32L4X5_SOC', if_true: files('stm32l4x5_soc.c'))
arm_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx-zynqmp.c', 'xlnx-zcu102.c'))
new file mode 100644
@@ -0,0 +1,246 @@
+/*
+ * STM32G000 SoC
+ *
+ * Copyright (c) 2024 Felipe Balbi <felipe@balbi.sh>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+#include "hw/arm/boot.h"
+#include "exec/address-spaces.h"
+#include "hw/arm/stm32g000_soc.h"
+#include "hw/qdev-properties.h"
+#include "hw/qdev-clock.h"
+#include "hw/misc/unimp.h"
+#include "sysemu/sysemu.h"
+
+/* stm32g000_soc implementation is derived from stm32f100_soc */
+
+struct stm32g0_ip_config {
+ const char *name;
+ uint32_t addr;
+ uint32_t irq;
+};
+
+#define STM32G0_DEFINE_IP(n, a, i) \
+{ \
+ .name = (n), \
+ .addr = (a), \
+ .irq = (i), \
+}
+
+static const struct stm32g0_ip_config usart_config[STM_NUM_USARTS] = {
+ STM32G0_DEFINE_IP("USART1", 0x40013800, 27),
+ STM32G0_DEFINE_IP("USART2", 0x40004000, 28),
+ STM32G0_DEFINE_IP("USART3", 0x40004400, 29),
+ STM32G0_DEFINE_IP("USART4", 0x40004800, 29),
+ STM32G0_DEFINE_IP("USART5", 0x40004c00, 29),
+ STM32G0_DEFINE_IP("USART6", 0x40005000, 29),
+ STM32G0_DEFINE_IP("LPUSART1", 0x40008000, 29),
+ STM32G0_DEFINE_IP("LPUSART2", 0x40008400, 28),
+};
+
+static const struct stm32g0_ip_config spi_config[STM_NUM_SPIS] = {
+ STM32G0_DEFINE_IP("SPI1", 0x40013000, 25),
+ STM32G0_DEFINE_IP("SPI2", 0x40003800, 26),
+ /* STM32G0_DEFINE_IP("SPI3", 0x4003c000, 26), only on STM32G0B1xx and STM32G0C1xx */
+};
+
+static void stm32g000_soc_initfn(Object *obj)
+{
+ STM32G000State *s = STM32G000_SOC(obj);
+ int i;
+
+ object_initialize_child(obj, "armv7m", &s->armv7m, TYPE_ARMV7M);
+
+ for (i = 0; i < STM_NUM_USARTS; i++) {
+ object_initialize_child(obj, "usart[*]", &s->usart[i],
+ TYPE_STM32F2XX_USART);
+ }
+
+ for (i = 0; i < STM_NUM_SPIS; i++) {
+ object_initialize_child(obj, "spi[*]", &s->spi[i], TYPE_STM32F2XX_SPI);
+ }
+
+ s->sysclk = qdev_init_clock_in(DEVICE(s), "sysclk", NULL, NULL, 0);
+ s->refclk = qdev_init_clock_in(DEVICE(s), "refclk", NULL, NULL, 0);
+}
+
+static void stm32g000_soc_realize(DeviceState *dev_soc, Error **errp)
+{
+ STM32G000State *s = STM32G000_SOC(dev_soc);
+ DeviceState *dev, *armv7m;
+ SysBusDevice *busdev;
+
+ MemoryRegion *system_memory = 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 code");
+ 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);
+
+ /*
+ * Init flash region
+ * Flash starts at 0x08000000 and then is aliased to boot memory at 0x0
+ */
+ memory_region_init_rom(&s->flash, OBJECT(dev_soc), "STM32G000.flash",
+ FLASH_SIZE, &error_fatal);
+ memory_region_init_alias(&s->flash_alias, OBJECT(dev_soc),
+ "STM32G000.flash.alias", &s->flash, 0, FLASH_SIZE);
+ memory_region_add_subregion(system_memory, FLASH_BASE_ADDRESS, &s->flash);
+ memory_region_add_subregion(system_memory, 0, &s->flash_alias);
+
+ /* Init SRAM region */
+ memory_region_init_ram(&s->sram, NULL, "STM32G000.sram", SRAM_SIZE,
+ &error_fatal);
+ memory_region_add_subregion(system_memory, SRAM_BASE_ADDRESS, &s->sram);
+
+ /* Init ARMv7m */
+ armv7m = DEVICE(&s->armv7m);
+ qdev_prop_set_uint32(armv7m, "num-irq", 61);
+ qdev_prop_set_uint8(armv7m, "num-prio-bits", 4);
+ qdev_prop_set_string(armv7m, "cpu-type", ARM_CPU_TYPE_NAME("cortex-m0"));
+ 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(get_system_memory()), &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->armv7m), errp)) {
+ return;
+ }
+
+ /* Attach UART (uses USART registers) and USART controllers */
+ for (unsigned i = 0; i < STM_NUM_USARTS; i++) {
+ dev = DEVICE(&(s->usart[i]));
+ qdev_prop_set_chr(dev, "chardev", serial_hd(i));
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->usart[i]), errp)) {
+ return;
+ }
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, usart_config[i].addr);
+ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, usart_config[i].irq));
+ }
+
+ /* SPI 1 and 2
+ *
+ * REVISIT: STM32G0B1xx and STM32G0C1xx have a 3rd SPI
+ */
+ for (unsigned i = 0; i < STM_NUM_SPIS; i++) {
+ dev = DEVICE(&(s->spi[i]));
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi[i]), errp)) {
+ return;
+ }
+ busdev = SYS_BUS_DEVICE(dev);
+ sysbus_mmio_map(busdev, 0, spi_config[i].addr);
+ sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(armv7m, spi_config[i].irq));
+ }
+
+ /* Review addresses */
+ create_unimplemented_device("timer[2]", 0x40000000, 0x400);
+ create_unimplemented_device("timer[3]", 0x40000400, 0x400);
+ create_unimplemented_device("timer[4]", 0x40000800, 0x400);
+ create_unimplemented_device("timer[6]", 0x40001000, 0x400);
+ create_unimplemented_device("timer[7]", 0x40001400, 0x400);
+ create_unimplemented_device("RTC", 0x40002800, 0x400);
+ create_unimplemented_device("WWDG", 0x40002c00, 0x400);
+ create_unimplemented_device("IWDG", 0x40003000, 0x400);
+ create_unimplemented_device("USB", 0x40005000, 0x400);
+ create_unimplemented_device("FDCAN1", 0x40006400, 0x400);
+ create_unimplemented_device("FDCAN2", 0x40006800, 0x400);
+ create_unimplemented_device("CRS", 0x40006c00, 0x400);
+ create_unimplemented_device("PWR", 0x40007000, 0x400);
+ create_unimplemented_device("DAC", 0x40007400, 0x400);
+ create_unimplemented_device("CEC", 0x40007800, 0x400);
+ create_unimplemented_device("LPTIM1", 0x40007c00, 0x400);
+ create_unimplemented_device("LPUART1", 0x40008000, 0x400);
+ create_unimplemented_device("LPUART2", 0x40008400, 0x400);
+ create_unimplemented_device("I2C3", 0x40008800, 0x400);
+ create_unimplemented_device("LPTIM2", 0x40009400, 0x400);
+ create_unimplemented_device("USB RAM1", 0x40009800, 0x400);
+ create_unimplemented_device("USB RAM2", 0x40009c00, 0x400);
+ create_unimplemented_device("UCPD1", 0x4000a000, 0x400);
+ create_unimplemented_device("UCPD2", 0x4000a400, 0x400);
+ create_unimplemented_device("TAMP", 0x4000b000, 0x400);
+ create_unimplemented_device("FDCAN", 0x4000b400, 0x800);
+ create_unimplemented_device("ADC", 0x40012400, 0x400);
+ create_unimplemented_device("timer[1]", 0x40012C00, 0x400);
+ create_unimplemented_device("timer[15]", 0x40014000, 0x400);
+ create_unimplemented_device("timer[16]", 0x40014400, 0x400);
+ create_unimplemented_device("timer[17]", 0x40014800, 0x400);
+ create_unimplemented_device("DMA1", 0x40020000, 0x400);
+ create_unimplemented_device("DMA2", 0x40020400, 0x400);
+ create_unimplemented_device("DMAMUX", 0x40020800, 0x800);
+ create_unimplemented_device("RCC", 0x40021000, 0x400);
+ create_unimplemented_device("EXTI", 0x40021800, 0x400);
+ create_unimplemented_device("FLASH", 0x40022000, 0x400);
+ create_unimplemented_device("CRC", 0x40023000, 0x400);
+ create_unimplemented_device("RNG", 0x40025000, 0x400);
+ create_unimplemented_device("AES", 0x40026000, 0x400);
+ create_unimplemented_device("GPIOA", 0x50000000, 0x400);
+ create_unimplemented_device("GPIOB", 0x50000400, 0x400);
+ create_unimplemented_device("GPIOC", 0x50000800, 0x400);
+ create_unimplemented_device("GPIOD", 0x50000c00, 0x400);
+ create_unimplemented_device("GPIOE", 0x50001000, 0x400);
+ create_unimplemented_device("GPIOF", 0x50001400, 0x400);
+}
+
+static void stm32g000_soc_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = stm32g000_soc_realize;
+ /* No vmstate or reset required: device has no internal state */
+}
+
+static const TypeInfo stm32g000_soc_info = {
+ .name = TYPE_STM32G000_SOC,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(STM32G000State),
+ .instance_init = stm32g000_soc_initfn,
+ .class_init = stm32g000_soc_class_init,
+};
+
+static void stm32g000_soc_types(void)
+{
+ type_register_static(&stm32g000_soc_info);
+}
+
+type_init(stm32g000_soc_types)
new file mode 100644
@@ -0,0 +1,62 @@
+/*
+ * STM32G000 SoC
+ *
+ * Copyright (c) 2024 Felipe Balbi <felipe@balbi.sh>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef HW_ARM_STM32G000_SOC_H
+#define HW_ARM_STM32G000_SOC_H
+
+#include "hw/gpio/stm32l4x5_gpio.h"
+#include "hw/char/stm32f2xx_usart.h"
+#include "hw/ssi/stm32f2xx_spi.h"
+#include "hw/arm/armv7m.h"
+#include "qom/object.h"
+#include "hw/clock.h"
+
+#define TYPE_STM32G000_SOC "stm32g000-soc"
+OBJECT_DECLARE_SIMPLE_TYPE(STM32G000State, STM32G000_SOC)
+
+#define STM_NUM_USARTS 8
+#define STM_NUM_SPIS 2
+
+#define FLASH_BASE_ADDRESS 0x08000000
+#define FLASH_SIZE (128 * 1024)
+#define SRAM_BASE_ADDRESS 0x20000000
+#define SRAM_SIZE (36 * 1024)
+
+struct STM32G000State {
+ SysBusDevice parent_obj;
+
+ ARMv7MState armv7m;
+
+ STM32F2XXUsartState usart[STM_NUM_USARTS];
+ STM32F2XXSPIState spi[STM_NUM_SPIS];
+
+ MemoryRegion sram;
+ MemoryRegion flash;
+ MemoryRegion flash_alias;
+
+ Clock *sysclk;
+ Clock *refclk;
+};
+
+#endif