Add I2C support to TI cc23x0 SoC

boards/ti/lp_em_cc2340r5/Kconfig.lp_em_cc2340r5

@@ -0,0 +1,7 @@
+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_LP_EM_CC2340R5
+	select SOC_CC2340R5

boards/ti/lp_em_cc2340r5/board.yml

@@ -0,0 +1,5 @@
+board:
+  name: lp_em_cc2340r5
+  vendor: ti
+  socs:
+    - name: cc2340r5

boards/ti/lp_em_cc2340r5/boosterpack_connector.dtsi

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024 Texas Instruments Incorporated
+ * Copyright (c) 2024 BayLibre, SAS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	boosterpack_header: connector {
+		compatible = "ti,boosterpack-header";
+		#gpio-cells = <2>;
+		gpio-map = <3 0 &gpio0 22 0>,
+			   <4 0 &gpio0 20 0>,
+			   <7 0 &gpio0 18 0>,
+			   <8 0 &gpio0 3 0>,
+			   <9 0 &gpio0 24 0>,
+			   <10 0 &gpio0 0 0>,
+
+			   <12 0 &gpio0 9 0>,
+			   <13 0 &gpio0 10 0>,
+			   <14 0 &gpio0 12 0>,
+			   <15 0 &gpio0 13 0>,
+			   <17 0 &gpio0 19 0>,
+			   <18 0 &gpio0 11 0>,
+
+			   <23 0 &gpio0 23 0>,
+			   <24 0 &gpio0 25 0>,
+			   <25 0 &gpio0 1 0>,
+			   <26 0 &gpio0 2 0>,
+			   <27 0 &gpio0 5 0>,
+			   <28 0 &gpio0 7 0>,
+
+			   <36 0 &gpio0 8 0>,
+			   <37 0 &gpio0 21 0>,
+			   <38 0 &gpio0 6 0>,
+			   <39 0 &gpio0 14 0>,
+			   <40 0 &gpio0 15 0>;
+	};
+};

boards/ti/lp_em_cc2340r5/doc/index.rst

@@ -0,0 +1,128 @@
+.. _lp_em_cc2340r5:
+
+TI CC2340R5 Launchpad
+#####################
+
+Overview
+********
+
+The Texas Instruments CC2340R5 LaunchPad |trade| (LP_EM_CC2340R5) is a
+development kit for the SimpleLink |trade| multi-Standard CC2340R5 wireless MCU.
+
+See the `TI CC2340R5 LaunchPad Product Page`_ for details.
+
+.. figure:: img/lp_em_cc2340r5.webp
+   :align: center
+   :alt: TI CC2340R5 Launchpad
+
+   Texas Instruments CC2340R5 LaunchPad |trade|
+
+Hardware
+********
+
+The CC2340R5 LaunchPad |trade| development kit features the CC2340R5 wireless MCU.
+The board is equipped with two LEDs, two push buttons and BoosterPack connectors
+for expansion.
+
+The CC2340R5 wireless MCU has a 48 MHz Arm |reg| Cortex |reg|-M0+ SoC and an
+integrated 2.4 GHz transceiver supporting multiple protocols including Bluetooth
+|reg| Low Energy and IEEE |reg| 802.15.4.
+
+See the `TI CC2340R5 Product Page`_ for additional details.
+
+Supported Features
+==================
+
+The ``lp_em_cc2340r5`` board supports the following hardware features:
+
++-----------+------------+----------------------+
+| Interface | Controller | Driver/Component     |
++===========+============+======================+
+| NVIC      | on-chip    | arch/arm             |
++-----------+------------+----------------------+
+| GPIO      | on-chip    | gpio                 |
++-----------+------------+----------------------+
+| PINMUX    | on-chip    | pinmux               |
++-----------+------------+----------------------+
+| UART      | on-chip    | serial port          |
++-----------+------------+----------------------+
+| SYSTIM    | on-chip    | system timer         |
++-----------+------------+----------------------+
+| FLASH     | on-chip    | flash memory         |
++-----------+------------+----------------------+
+
+Other hardware features have not been enabled yet for this board.
+
+Connections and IOs
+===================
+
+All I/O signals are accessible from the BoosterPack connectors. Pin function
+aligns with the LaunchPad standard.
+
++-------+-----------+---------------------+
+| Pin   | Function  | Usage               |
++=======+===========+=====================+
+| DIO0  | GPIO      |                     |
++-------+-----------+---------------------+
+| DIO1  | ANALOG_IO | A4                  |
++-------+-----------+---------------------+
+| DIO2  | ANALOG_IO | A3                  |
++-------+-----------+---------------------+
+| DIO5  | ANALOG_IO | A5                  |
++-------+-----------+---------------------+
+| DIO6  | SPI_CSN   | SPI CS              |
++-------+-----------+---------------------+
+| DIO7  | ANALOG_IO | A0                  |
++-------+-----------+---------------------+
+| DIO8  | GPIO      |                     |
++-------+-----------+---------------------+
+| DIO9  | GPIO      | Button 2            |
++-------+-----------+---------------------+
+| DIO10 | GPIO      | Button 1            |
++-------+-----------+---------------------+
+| DIO11 | SPI_CSN   | SPI CS              |
++-------+-----------+---------------------+
+| DIO12 | SPI_POCI  | SPI POCI            |
++-------+-----------+---------------------+
+| DIO13 | SPI_PICO  | SPI_PICO            |
++-------+-----------+---------------------+
+| DIO14 | GPIO      | Red LED             |
++-------+-----------+---------------------+
+| DIO15 | GPIO      | Green LED           |
++-------+-----------+---------------------+
+| DIO18 | SPI_CLK   | SPI CLK             |
++-------+-----------+---------------------+
+| DIO19 | GPIO      |                     |
++-------+-----------+---------------------+
+| DIO20 | UART0_TX  | UART TX             |
++-------+-----------+---------------------+
+| DIO21 | GPIO      |                     |
++-------+-----------+---------------------+
+| DIO22 | UART0_RX  | UART RX             |
++-------+-----------+---------------------+
+| DIO23 | ANALOG_IO | A8                  |
++-------+-----------+---------------------+
+| DIO24 | ANALOG_IO | A7                  |
++-------+-----------+---------------------+
+
+Programming and Debugging
+*************************
+
+The LP_EM_CC2340R5 requires an external debug probe such as the LP-XDS110 or
+LP-XDS110ET.
+
+Currently there is no debug support in Zephyr for the LP_EM_CC2340R5, and the
+built binaries for this target must be flashed/debugged using either Uniflash
+or Code Composer Studio.
+
+References
+**********
+
+CC2340R5 LaunchPad Quick Start Guide:
+  https://www.ti.com/lit/pdf/swru588
+
+.. _TI CC2340R5 LaunchPad Product Page:
+   https://www.ti.com/tool/LP-EM-CC2340R5
+
+.. _TI CC2340R5 Product Page:
+   https://www.ti.com/product/CC2340R5

boards/ti/lp_em_cc2340r5/lp_em_cc2340r5-pinctrl.dtsi

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2024 Texas Instruments Incorporated
+ * Copyright (c) 2024 BayLibre, SAS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/dt-bindings/pinctrl/cc23x0-pinctrl.h>
+
+&pinctrl {
+	/* UART0 */
+	uart0_tx_default: uart0_tx_default {
+		pinmux = <20 DIO20_UART0_TXD>;
+		bias-disable;
+	};
+	uart0_rx_default: uart0_rx_default {
+		pinmux = <22 DIO22_UART0_RXD>;
+		bias-disable;
+		input-enable;
+	};
+
+	/* I2C0 */
+	i2c0_scl_default: i2c0_scl_default {
+		pinmux = <24 DIO24_I2C0_SCL>;
+		bias-pull-up;
+		drive-open-drain;
+		input-enable;
+	};
+	i2c0_sda_default: i2c0_sda_default {
+		pinmux = <0 DIO0_I2C0_SDA>;
+		bias-pull-up;
+		drive-open-drain;
+		input-enable;
+	};
+};

boards/ti/lp_em_cc2340r5/lp_em_cc2340r5.dts

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2024 Texas Instruments Incorporated
+ * Copyright (c) 2024 BayLibre, SAS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <ti/cc2340r5.dtsi>
+#include "boosterpack_connector.dtsi"
+#include "lp_em_cc2340r5-pinctrl.dtsi"
+#include <zephyr/dt-bindings/gpio/gpio.h>
+#include <zephyr/dt-bindings/input/input-event-codes.h>
+
+/ {
+	model = "LP_EM_CC2340R5";
+	compatible = "ti,lp_em_cc2340r5";
+
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+	};
+
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+		sw0 = &btn0;
+		sw1 = &btn1;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led0: led_0 {
+			gpios = <&gpio0 15 GPIO_ACTIVE_HIGH>;
+			label = "Green LED";
+		};
+
+		led1: led_1 {
+			gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
+			label = "Red LED";
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		btn0: btn_0 {
+			gpios = <&gpio0 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			label = "Button 1";
+			zephyr,code = <INPUT_KEY_0>;
+		};
+
+		btn1: btn_1 {
+			gpios = <&gpio0 9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+			label = "Button 2";
+			zephyr,code = <INPUT_KEY_1>;
+		};
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_rx_default &uart0_tx_default>;
+	pinctrl-names = "default";
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-0 = <&i2c0_scl_default
+		     &i2c0_sda_default>;
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+};

boards/ti/lp_em_cc2340r5/lp_em_cc2340r5.yaml

@@ -0,0 +1,14 @@
+identifier: lp_em_cc2340r5
+name: TI SimpleLink CC2340R5 LaunchPad
+type: mcu
+arch: arm
+ram: 80
+flash: 512
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - gpio
+  - uart
+vendor: ti

boards/ti/lp_em_cc2340r5/lp_em_cc2340r5_defconfig

@@ -0,0 +1,10 @@
+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_GPIO=y
+CONFIG_SERIAL=y
+
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y

drivers/flash/CMakeLists.txt

@@ -43,6 +43,7 @@ zephyr_library_sources_ifdef(CONFIG_FLASH_STM32_XSPI flash_stm32_xspi.c)
 zephyr_library_sources_ifdef(CONFIG_INFINEON_CAT1_QSPI_FLASH flash_ifx_cat1_qspi.c)
 zephyr_library_sources_ifdef(CONFIG_NORDIC_QSPI_NOR nrf_qspi_nor.c)
 zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_CC13XX_CC26XX soc_flash_cc13xx_cc26xx.c)
+zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_CC23X0 soc_flash_cc23x0.c)
 zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_ESP32 flash_esp32.c)
 zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_GECKO flash_gecko.c)
 zephyr_library_sources_ifdef(CONFIG_SOC_FLASH_ITE_IT8XXX2 flash_ite_it8xxx2.c)

drivers/flash/Kconfig

@@ -171,6 +171,7 @@ source "drivers/flash/Kconfig.b91"
 source "drivers/flash/Kconfig.cadence_nand"
 source "drivers/flash/Kconfig.cadence_qspi_nor"
 source "drivers/flash/Kconfig.cc13xx_cc26xx"
+source "drivers/flash/Kconfig.cc23x0"
 source "drivers/flash/Kconfig.esp32"
 source "drivers/flash/Kconfig.gd32"
 source "drivers/flash/Kconfig.gecko"

drivers/flash/Kconfig.cc23x0

@@ -0,0 +1,14 @@
+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_FLASH_CC23X0
+	bool "TI SimpleLink CC23x0 flash controller driver"
+	default y
+	depends on DT_HAS_TI_CC23X0_FLASH_CONTROLLER_ENABLED
+	select FLASH_HAS_PAGE_LAYOUT
+	select FLASH_HAS_DRIVER_ENABLED
+	select MPU_ALLOW_FLASH_WRITE if ARM_MPU
+	help
+	  Enables TI SimpleLink CC23x0 flash controller driver.