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str4t0mfabiobaltieri
str4t0m
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dts: arm: st: stm32c0: add stm32c051
Add dts for stm32c051. STM32C051 is just an STM32c071 w/o USB and different memory configuration. Therefore STM32C091 can directly include STM32C051 and no longer needs to delete the usb nodes. Signed-off-by: Thomas Stranger <[email protected]>
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‎dts/arm/st/c0/stm32c051.dtsi‎

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/*
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* Copyright (c) 2024 STMicroelectronics
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* Copyright (c) 2025 Thomas Stranger
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <st/c0/stm32c031.dtsi>
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/ {
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soc {
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compatible = "st,stm32c051", "st,stm32c0", "simple-bus";
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timers2: timers@40000000 {
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compatible = "st,stm32-timers";
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reg = <0x40000000 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 0)>,
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<&rcc STM32_SRC_TIMPCLK1 NO_SEL>;
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resets = <&rctl STM32_RESET(APB1L, 0)>;
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interrupts = <15 0>;
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interrupt-names = "global";
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st,prescaler = <0>;
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status = "disabled";
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pwm {
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compatible = "st,stm32-pwm";
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status = "disabled";
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#pwm-cells = <3>;
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};
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counter {
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compatible = "st,stm32-counter";
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status = "disabled";
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};
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};
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i2c2: i2c@40005800 {
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compatible = "st,stm32-i2c-v2";
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clock-frequency = <I2C_BITRATE_STANDARD>;
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x40005800 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 22)>;
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interrupts = <24 0>;
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interrupt-names = "global";
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status = "disabled";
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};
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spi2: spi@40003800 {
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compatible = "st,stm32-spi-fifo", "st,stm32-spi";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x40003800 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 14)>;
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interrupts = <26 0>;
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interrupt-names = "global";
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status = "disabled";
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};
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dma1: dma@40020000 {
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interrupts = <9 0 10 0 10 0 11 0 11 0>;
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dma-requests = <5>;
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};
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dmamux1: dmamux@40020800 {
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dma-channels = <5>;
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};
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};
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};

‎dts/arm/st/c0/stm32c051X6.dtsi‎

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/*
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* Copyright (c) 2025 Thomas Stranger
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <mem.h>
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#include <st/c0/stm32c051.dtsi>
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/ {
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sram0: memory@20000000 {
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reg = <0x20000000 DT_SIZE_K(12)>;
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};
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soc {
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flash-controller@40022000 {
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flash0: flash@8000000 {
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reg = <0x08000000 DT_SIZE_K(32)>;
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};
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};
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};
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};

‎dts/arm/st/c0/stm32c051X8.dtsi‎

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/*
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* Copyright (c) 2025 Thomas Stranger
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <mem.h>
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#include <st/c0/stm32c051.dtsi>
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/ {
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sram0: memory@20000000 {
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reg = <0x20000000 DT_SIZE_K(12)>;
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};
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soc {
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flash-controller@40022000 {
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flash0: flash@8000000 {
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reg = <0x08000000 DT_SIZE_K(64)>;
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};
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};
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};
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};

‎dts/arm/st/c0/stm32c071.dtsi‎

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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <st/c0/stm32c031.dtsi>
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#include <st/c0/stm32c051.dtsi>
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/ {
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clocks {
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soc {
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compatible = "st,stm32c071", "st,stm32c0", "simple-bus";
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timers2: timers@40000000 {
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compatible = "st,stm32-timers";
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reg = <0x40000000 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 0)>,
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<&rcc STM32_SRC_TIMPCLK1 NO_SEL>;
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resets = <&rctl STM32_RESET(APB1L, 0U)>;
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interrupts = <15 0>;
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interrupt-names = "global";
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st,prescaler = <0>;
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status = "disabled";
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pwm {
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compatible = "st,stm32-pwm";
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status = "disabled";
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#pwm-cells = <3>;
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};
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counter {
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compatible = "st,stm32-counter";
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status = "disabled";
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};
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};
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i2c2: i2c@40005800 {
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compatible = "st,stm32-i2c-v2";
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clock-frequency = <I2C_BITRATE_STANDARD>;
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x40005800 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 22)>;
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interrupts = <24 0>;
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interrupt-names = "global";
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status = "disabled";
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};
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usb: usb@40005c00 {
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compatible = "st,stm32-usb";
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reg = <0x40005c00 0x400>;
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<&rcc STM32_SRC_HSE USB_SEL(1)>;
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status = "disabled";
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};
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spi2: spi@40003800 {
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compatible = "st,stm32-spi-fifo", "st,stm32-spi";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0x40003800 0x400>;
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clocks = <&rcc STM32_CLOCK(APB1, 14)>;
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interrupts = <26 0>;
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interrupt-names = "global";
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status = "disabled";
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};
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dma1: dma@40020000 {
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interrupts = <9 0 10 0 10 0 11 0 11 0>;
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dma-requests = <5>;
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};
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dmamux1: dmamux@40020800 {
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dma-channels = <5>;
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};
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};
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usb_fs_phy: usbphy {

‎dts/arm/st/c0/stm32c091.dtsi‎

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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <st/c0/stm32c071.dtsi>
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/* STM32C091 is a superset of the C071 with the exception of USB support.
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* Since C071 provides the same set of peripheral as the C051,
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* along with the addition of USB, once the C051 is introduced,
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* it can be included instead, and the delete-node can be removed.
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*/
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/delete-node/ &usb;
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/delete-node/ &usb_fs_phy;
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#include <st/c0/stm32c051.dtsi>
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/ {
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soc {
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};
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};
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};
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&exti {
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num-lines = <32>;
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};

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