Introduce BL70x SoC

boards/doiting/dt_xt_zb1_devkit/Kconfig.dt_xt_zb1_devkit

@@ -0,0 +1,5 @@
+# Copyright (c) 2025 MASSDRIVER EI (massdriver.space)
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_DT_XT_ZB1_DEVKIT
+	select SOC_BL702C10Q2H

boards/doiting/dt_xt_zb1_devkit/board.cmake

@@ -0,0 +1,25 @@
+# Copyright (c) 2025 MASSDRIVER EI (massdriver.space)
+#
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(openocd --cmd-pre-init "source [find bl70x.cfg]")
+
+board_runner_args(openocd --use-elf --no-load --no-init)
+board_runner_args(openocd --gdb-init "set mem inaccessible-by-default off")
+board_runner_args(openocd --gdb-init "set architecture riscv:rv32")
+board_runner_args(openocd --gdb-init "set remotetimeout 250")
+board_runner_args(openocd --gdb-init "set print asm-demangle on")
+board_runner_args(openocd --gdb-init "set backtrace limit 32")
+board_runner_args(openocd --gdb-init "mem 0x22010000 0x22014000 rw")
+board_runner_args(openocd --gdb-init "mem 0x42010000 0x42014000 rw")
+board_runner_args(openocd --gdb-init "mem 0x22014000 0x22020000 rw")
+board_runner_args(openocd --gdb-init "mem 0x42014000 0x42020000 rw")
+board_runner_args(openocd --gdb-init "mem 0x22020000 0x2203C000 rw")
+board_runner_args(openocd --gdb-init "mem 0x42020000 0x4203C000 rw")
+board_runner_args(openocd --gdb-init "mem 0x23000000 0x23400000 ro")
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
+
+board_runner_args(bflb_mcu_tool --chipname bl702)
+include(${ZEPHYR_BASE}/boards/common/bflb_mcu_tool.board.cmake)
+
+board_set_flasher(bflb_mcu_tool)

boards/doiting/dt_xt_zb1_devkit/board.yml

@@ -0,0 +1,6 @@
+board:
+  name: dt_xt_zb1_devkit
+  full_name: XT-ZB1 Zigbee 3.0 and BLE 5.0 Coexistence Module Development Kit
+  vendor: doiting
+  socs:
+    - name: bl702c10q2h

boards/doiting/dt_xt_zb1_devkit/doc/index.rst

@@ -0,0 +1,95 @@
+.. zephyr:board:: dt_xt_zb1_devkit
+
+XT-ZB1 Development Kit
+#######################
+
+Overview
+********
+
+XT-ZB1 Zigbee 3.0 and BLE 5.0 coexistence Module is a highly integrated single-chip solution
+providing Zigbee and BLE in a single chip.
+It also provides a bunch of configurable GPIO, which are configured as digital
+peripherals for different applications and control usage.
+
+The XT-ZB1 Module use BL702 as Zigbee and BLE coexistence soc chip.
+The embedded memory configuration provides simple application developments.
+
+Hardware
+********
+
+For more information about the Bouffalo Lab BL702 MCU:
+
+- `Bouffalo Lab BL702 MCU Website`_
+- `Bouffalo Lab BL702 MCU Datasheet`_
+- `Bouffalo Lab Development Zone`_
+- `Doctors of Intelligence & Technology (www.doiting.com)`_
+
+Supported Features
+==================
+
+.. zephyr:board-supported-hw::
+
+System Clock
+============
+
+The XT-ZB1 board is configured to run at max speed by default (144MHz).
+
+Serial Port
+===========
+
+The ``dt_xt_zb1_devkit`` board uses UART0 as default serial port. It is connected
+to USB Serial converter and port is used for both program and console.
+
+
+Programming and Debugging
+*************************
+
+.. zephyr:board-supported-runners::
+
+Samples
+=======
+
+#. Build the Zephyr kernel and the :zephyr:code-sample:`hello_world` sample
+application:
+
+   .. zephyr-app-commands::
+      :zephyr-app: samples/hello_world
+      :board: dt_xt_zb1_devkit
+      :goals: build flash
+
+#. Run your favorite terminal program to listen for output. Under Linux the
+   terminal should be :code:`/dev/ttyUSB0`. For example:
+
+   .. code-block:: console
+
+      $ screen /dev/ttyUSB0 115200
+
+   The -o option tells minicom not to send the modem initialization
+   string. Connection should be configured as follows:
+
+      - Speed: 115200
+      - Data: 8 bits
+      - Parity: None
+      - Stop bits: 1
+
+   Then, press and release RST button
+
+   .. code-block:: console
+
+      *** Booting Zephyr OS build v4.2.0-1031-g63c9db88d01a ***
+      Hello World! dt_xt_zb1_devkit/bl702c10q2h
+
+Congratulations, you have ``dt_xt_zb1_devkit`` configured and running Zephyr.
+
+
+.. _Bouffalo Lab BL702 MCU Website:
+	https://www.bouffalolab.com/product/?type=detail&id=8
+
+.. _Bouffalo Lab BL702 MCU Datasheet:
+	https://github.com/bouffalolab/bl_docs/tree/main/BL702_DS/en
+
+.. _Bouffalo Lab Development Zone:
+	https://dev.bouffalolab.com/home?id=guest
+
+.. _Doctors of Intelligence & Technology (www.doiting.com):
+	https://www.doiting.com

boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit-pinctrl.dtsi

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2025 MASSDRIVER EI (massdriver.space)
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <dt-bindings/pinctrl/bl702x-pinctrl.h>
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			pinmux = <GPIO15_UART0_RX>,
+				 <GPIO14_UART0_TX>;
+			bias-pull-up;
+			input-schmitt-enable;
+		};
+	};
+
+	uart0_sleep: uart0_sleep {
+		group1 {
+			pinmux = <GPIO15_UART0_RX>,
+				 <GPIO14_UART0_TX>;
+			bias-high-impedance;
+		};
+	};
+};

boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.dts

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2025 MASSDRIVER EI (massdriver.space)
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <bflb/bl70x.dtsi>
+#include "dt_xt_zb1_devkit-pinctrl.dtsi"
+
+/ {
+	model = "Zigbee 3.0 and BLE 5.0 Coexistence Module Development Kit";
+	compatible = "bflb,bl702";
+
+	chosen {
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+		zephyr,itcm = &itcm;
+		zephyr,dtcm = &dtcm;
+		zephyr,sram = &sram0;
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+	};
+};
+
+&cpu0 {
+	clock-frequency = <DT_FREQ_M(144)>;
+};
+
+&flashctrl {
+	flash0: flash@23000000 {
+		compatible = "soc-nv-flash", "mxicy,kh25v80";
+		reg = <0x23000000 (0x1000000 - 0x2000)>;
+		write-block-size = <256>;
+		erase-block-size = <DT_SIZE_K(4)>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			slot0_partition: partition@0 {
+				label = "image-0";
+				reg = <0x00000000 0x80000>;
+				read-only;
+			};
+
+			storage_partition: partition@80000 {
+				label = "storage";
+				reg = <0x00080000 (0x80000 - 0x2000)>;
+			};
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+	current-speed = <115200>;
+
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-1 = <&uart0_sleep>;
+	pinctrl-names = "default", "sleep";
+};

boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit.yaml

@@ -0,0 +1,18 @@
+# Copyright (c) 2025 MASSDRIVER EI (massdriver.space)
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: dt_xt_zb1_devkit
+name: Zigbee 3.0 and BLE 5.0 Coexistence Module Development Kitt
+type: mcu
+arch: riscv
+ram: 132
+toolchain:
+  - zephyr
+testing:
+  ignore_tags:
+    - net
+    - bluetooth
+supported:
+  - pinctrl
+  - uart
+vendor: doiting

boards/doiting/dt_xt_zb1_devkit/dt_xt_zb1_devkit_defconfig

@@ -0,0 +1,8 @@
+# Copyright (c) 2021-2025 ATL Electronics
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_CONSOLE=y
+CONFIG_SERIAL=y
+
+CONFIG_UART_CONSOLE=y
+CONFIG_UART_INTERRUPT_DRIVEN=y

boards/doiting/dt_xt_zb1_devkit/support/bl70x.cfg

@@ -0,0 +1,80 @@
+# Copyright (c) 2024-2025 MASSDRIVER EI (massdriver.space)
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if { [info exists CHIPNAME] } {
+    set _CHIPNAME $CHIPNAME
+} else {
+    set _CHIPNAME riscv
+}
+
+if { [info exists WORKAREASIZE] } {
+    set _WORKAREASIZE $WORKAREASIZE
+} else {
+    set _WORKAREASIZE 0x10000
+}
+
+if { [info exists WORKAREAADDR] } {
+    set _WORKAREAADDR $WORKAREAADDR
+} else {
+    set _WORKAREAADDR 0x22020000
+}
+
+if { [info exists CPUTAPID] } {
+    set _CPUTAPID $CPUTAPID
+} else {
+    set _CPUTAPID 0x20000e05
+}
+
+transport select jtag
+jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME.0 riscv -chain-position $_TARGETNAME
+
+$_TARGETNAME.0 configure -work-area-phys $_WORKAREAADDR -work-area-size $_WORKAREASIZE -work-area-backup 1
+
+echo "Ready for Remote Connections"
+
+$_TARGETNAME.0 configure -event reset-assert-pre {
+    echo "reset-assert-pre"
+    adapter speed 400
+}
+
+$_TARGETNAME.0 configure -event reset-deassert-post {
+    echo "reset-deassert-post"
+
+    adapter speed 400
+
+    reg mstatus 0x0
+    reg pc 0x21000000
+}
+
+$_TARGETNAME.0 configure -event reset-init {
+    echo "reset-init"
+
+    adapter speed 400
+}
+
+$_TARGETNAME.0 configure -event gdb-attach {
+        echo "Debugger attaching: halting execution"
+        reset halt
+        gdb_breakpoint_override hard
+}
+
+$_TARGETNAME.0 configure -event gdb-detach {
+        echo "Debugger detaching: resuming execution"
+        resume
+}
+
+gdb_memory_map enable
+gdb_flash_program enable
+
+# 'progbuf', 'sysbus' or 'abstract'
+riscv set_mem_access sysbus
+riscv set_command_timeout_sec 1
+
+init
+reset init
+
+reset init

boards/doiting/dt_xt_zb1_devkit/support/openocd.cfg

@@ -0,0 +1,5 @@
+# For WCH linkE in DAP mode
+
+interface cmsis-dap
+
+adapter speed 400

drivers/clock_control/CMakeLists.txt

@@ -56,6 +56,7 @@ zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_NRF_HSFLL_LOCAL     clock_cont
 zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_NRF_LFCLK           clock_control_nrf_lfclk.c)
 zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_NRF_AUXPLL          clock_control_nrf_auxpll.c)
 zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_BOUFFALOLAB_BL60X   clock_control_bl60x.c)
+zephyr_library_sources_ifdef(CONFIG_CLOCK_CONTROL_BOUFFALOLAB_BL70X   clock_control_bl70x.c)
 
 if(CONFIG_CLOCK_CONTROL_RENESAS_RZA2M_CPG)
   zephyr_library_sources(clock_control_renesas_rza2m_cpg.c)

drivers/clock_control/Kconfig.bflb

@@ -5,3 +5,8 @@ config CLOCK_CONTROL_BOUFFALOLAB_BL60X
 	bool "Bouffalolab BL60x Clock Control"
 	default y
 	depends on DT_HAS_BFLB_BL60X_CLOCK_CONTROLLER_ENABLED
+
+config CLOCK_CONTROL_BOUFFALOLAB_BL70X
+	bool "Bouffalolab BL70x Clock Control"
+	default y
+	depends on DT_HAS_BFLB_BL70X_CLOCK_CONTROLLER_ENABLED