ProMicro Stacked Variants

boards/nordic/promicro_uf2/board.c

@@ -10,15 +10,32 @@
 
 #define ZEPHYR_USER_NODE DT_PATH(zephyr_user)
 
-#define VCC_GPIO_PIN DT_GPIO_PIN(ZEPHYR_USER_NODE, vcc_gpios)
-#define VCC_GPIO_PORT_NUM DT_PROP(DT_GPIO_CTLR(ZEPHYR_USER_NODE, vcc_gpios), port)
+#if DT_NODE_HAS_PROP(ZEPHYR_USER_NODE, vcc_gpios)
+	#define VCC_GPIO_PIN DT_GPIO_PIN(ZEPHYR_USER_NODE, vcc_gpios)
+	#define VCC_GPIO_PORT_NUM DT_PROP(DT_GPIO_CTLR(ZEPHYR_USER_NODE, vcc_gpios), port)
+#endif
+
+#if DT_NODE_HAS_PROP(ZEPHYR_USER_NODE, gnd_gpios)
+	#define GND_GPIO_PIN DT_GPIO_PIN(ZEPHYR_USER_NODE, gnd_gpios)
+	#define GND_GPIO_PORT_NUM DT_PROP(DT_GPIO_CTLR(ZEPHYR_USER_NODE, gnd_gpios), port)
+#endif
 
 static int board_promicro_init(void)
 {
-	/* using vcc-gpios for sensor power defined in promicro_uf2.dts
+	/* using vcc-gpios for sensor power defined in promicro_uf2.dts or variant device tree
+	 */
+	#if DT_NODE_HAS_PROP(ZEPHYR_USER_NODE, vcc_gpios)
+		nrf_gpio_cfg(NRF_GPIO_PIN_MAP(VCC_GPIO_PORT_NUM, VCC_GPIO_PIN), NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_D0H1, NRF_GPIO_PIN_NOSENSE);
+		nrf_gpio_pin_set(NRF_GPIO_PIN_MAP(VCC_GPIO_PORT_NUM, VCC_GPIO_PIN));
+	#endif
+
+	/* using gnd-gpios for sensor power defined in promicro_uf2.dts or variant or variant device tree
 	 */
-	nrf_gpio_cfg(NRF_GPIO_PIN_MAP(VCC_GPIO_PORT_NUM, VCC_GPIO_PIN), NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_D0H1, NRF_GPIO_PIN_NOSENSE);
-	nrf_gpio_pin_set(NRF_GPIO_PIN_MAP(VCC_GPIO_PORT_NUM, VCC_GPIO_PIN));
+	#if DT_NODE_HAS_PROP(ZEPHYR_USER_NODE, gnd_gpios)
+		nrf_gpio_cfg(NRF_GPIO_PIN_MAP(GND_GPIO_PORT_NUM, GND_GPIO_PIN), NRF_GPIO_PIN_DIR_OUTPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_NOPULL, NRF_GPIO_PIN_D0H1, NRF_GPIO_PIN_NOSENSE);
+		nrf_gpio_pin_clear(NRF_GPIO_PIN_MAP(GND_GPIO_PORT_NUM, GND_GPIO_PIN));
+	#endif
+
 	/* pull down on P0.13, disables external 3V3 regulator
 	 */
 	nrf_gpio_cfg(NRF_GPIO_PIN_MAP(0, 13), NRF_GPIO_PIN_DIR_INPUT, NRF_GPIO_PIN_INPUT_DISCONNECT, NRF_GPIO_PIN_PULLDOWN, NRF_GPIO_PIN_S0S1, NRF_GPIO_PIN_NOSENSE);

boards/nordic/promicro_uf2/board.yml

@@ -13,4 +13,6 @@ board:
       - name: 'i2c'
       - name: 'spi'
       - name: 'smspi'
-      - name: 'chrysalis'
+      - name: 'chrysalis'
+      - name: 'stackedi2c'
+      - name: 'stackedspi'

boards/nordic/promicro_uf2/promicro_uf2_stackedi2c.dts

@@ -0,0 +1,48 @@
+// Copyright (c) 2024 Nordic Semiconductor ASA
+// SPDX-License-Identifier: Apache-2.0
+
+/dts-v1/;
+#include "promicro_uf2.dts"
+
+&pinctrl {
+	i2c0_default: i2c0_default {
+		/delete-node/ group1;
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 24)>, <NRF_PSEL(TWIM_SCL, 0, 22)>;
+			bias-disable;
+		};
+	};
+
+	i2c0_sleep: i2c0_sleep {
+		/delete-node/ group1;
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 24)>, <NRF_PSEL(TWIM_SCL, 0, 22)>;
+			bias-disable;
+			low-power-enable;
+		};
+	};
+};
+
+/ {
+	buttons {
+		/delete-node/ button0;
+		button0: button_0 {
+			gpios = <&gpio0 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+		};
+	};
+
+	aliases {
+		sw0 = &button0;
+	};
+
+	zephyr,user {
+		/delete-property/ int0-gpios;
+		/delete-property/ vcc-gpios;
+		int0-gpios = <&gpio0 2 0>;
+		clk-gpios = <&gpio1 11 GPIO_OPEN_DRAIN>;
+		vcc-gpios = <&gpio0 17 GPIO_OPEN_SOURCE>;
+		gnd-gpios = <&gpio0 20 GPIO_OPEN_DRAIN>;
+	};
+};
+
+/delete-node/ &spi3;

boards/nordic/promicro_uf2/promicro_uf2_stackedi2c.yaml

@@ -0,0 +1,14 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: promicro_uf2/nrf52840/stackedi2c
+name: promicro_uf2_stackedi2c
+vendor: nordic
+type: mcu
+arch: arm
+ram: 256
+flash: 1024
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools

boards/nordic/promicro_uf2/promicro_uf2_stackedi2c_defconfig

@@ -0,0 +1,15 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_ARM_MPU=y
+CONFIG_HW_STACK_PROTECTION=y
+
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_MANUFACTURER="SlimeVR"
+CONFIG_USB_DEVICE_PRODUCT="SlimeNRF Tracker ProMicro"
+
+CONFIG_BATTERY_USE_REG_LDO_MAPPING=y
+
+#generate for adafruit uf2 bootloader flashing
+CONFIG_BUILD_OUTPUT_UF2=y
+CONFIG_FLASH_LOAD_OFFSET=0x1000

boards/nordic/promicro_uf2/promicro_uf2_stackedspi.dts

@@ -0,0 +1,55 @@
+// Copyright (c) 2024 Nordic Semiconductor ASA
+// SPDX-License-Identifier: Apache-2.0
+
+/dts-v1/;
+#include "promicro_uf2.dts"
+
+&pinctrl {
+	spi3_default: spi3_default {
+		/delete-node/ group1;
+		group1 {
+			psels = <NRF_PSEL(SPIM_MISO, 0, 11)>,
+					<NRF_PSEL(SPIM_MOSI, 0, 24)>,
+					<NRF_PSEL(SPIM_SCK, 0, 22)>;
+		};
+	};
+
+	spi3_sleep: spi3_sleep {
+		/delete-node/ group1;
+		group1 {
+			psels = <NRF_PSEL(SPIM_MISO, 0, 11)>,
+					<NRF_PSEL(SPIM_MOSI, 0, 24)>,
+					<NRF_PSEL(SPIM_SCK, 0, 22)>;
+			low-power-enable;
+		};
+	};
+};
+
+/ {
+	buttons {
+		/delete-node/ button0;
+		button0: button_0 {
+			gpios = <&gpio0 6 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
+		};
+	};
+
+	aliases {
+		sw0 = &button0;
+	};
+
+	zephyr,user {
+		/delete-property/ int0-gpios;
+		/delete-property/ vcc-gpios;
+		int0-gpios = <&gpio0 2 0>;
+		clk-gpios = <&gpio1 11 GPIO_OPEN_DRAIN>;
+		vcc-gpios = <&gpio0 17 GPIO_OPEN_SOURCE>;
+		gnd-gpios = <&gpio0 20 GPIO_OPEN_DRAIN>;
+	};
+};
+
+/delete-node/ &i2c0;
+
+&spi3 {
+	/delete-property/ cs-gpios;
+	cs-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
+};

boards/nordic/promicro_uf2/promicro_uf2_stackedspi.yaml

@@ -0,0 +1,14 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+identifier: promicro_uf2/nrf52840/stackedspi
+name: promicro_uf2_stackedspi
+vendor: nordic
+type: mcu
+arch: arm
+ram: 256
+flash: 1024
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools

boards/nordic/promicro_uf2/promicro_uf2_stackedspi_defconfig

@@ -0,0 +1,15 @@
+# Copyright (c) 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_ARM_MPU=y
+CONFIG_HW_STACK_PROTECTION=y
+
+CONFIG_USB_DEVICE_STACK=y
+CONFIG_USB_DEVICE_MANUFACTURER="SlimeVR"
+CONFIG_USB_DEVICE_PRODUCT="SlimeNRF Tracker ProMicro"
+
+CONFIG_BATTERY_USE_REG_LDO_MAPPING=y
+
+#generate for adafruit uf2 bootloader flashing
+CONFIG_BUILD_OUTPUT_UF2=y
+CONFIG_FLASH_LOAD_OFFSET=0x1000

pm_static_promicro_uf2_nrf52840_stackedi2c.yml

@@ -0,0 +1,10 @@
+bootloader:
+  address: 0x0
+  end_address: 0x1000
+  region: flash_primary
+  size: 0x1000
+uf2_bootloader:
+  address: 0xf4000
+  end_address: 0x100000
+  region: flash_primary
+  size: 0xc000

pm_static_promicro_uf2_nrf52840_stackedspi.yml

@@ -0,0 +1,10 @@
+bootloader:
+  address: 0x0
+  end_address: 0x1000
+  region: flash_primary
+  size: 0x1000
+uf2_bootloader:
+  address: 0xf4000
+  end_address: 0x100000
+  region: flash_primary
+  size: 0xc000

socs/nrf52840_stackedi2c.overlay

@@ -0,0 +1,34 @@
+/ {
+	sram0@2003f000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x2003f000 DT_SIZE_K(4)>;
+		zephyr,memory-region = "RETAINED_MEM";
+		status = "okay";
+
+		retainedmem0: retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	sram0@20007f7c {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x20007f7c 4>;
+		zephyr,memory-region = "DFU_DBL_RESET_MEM";
+		status = "okay";
+
+		retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	aliases {
+		retainedmemdevice = &retainedmem0;
+	};
+};
+
+&sram0 {
+	/* Shrink SRAM size to avoid overlap with retained memory region */
+	reg = <0x20000000 DT_SIZE_K(252)>;
+};

socs/nrf52840_stackedspi.overlay

@@ -0,0 +1,34 @@
+/ {
+	sram0@2003f000 {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x2003f000 DT_SIZE_K(4)>;
+		zephyr,memory-region = "RETAINED_MEM";
+		status = "okay";
+
+		retainedmem0: retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	sram0@20007f7c {
+		compatible = "zephyr,memory-region", "mmio-sram";
+		reg = <0x20007f7c 4>;
+		zephyr,memory-region = "DFU_DBL_RESET_MEM";
+		status = "okay";
+
+		retainedmem {
+			compatible = "zephyr,retained-ram";
+			status = "okay";
+		};
+	};
+
+	aliases {
+		retainedmemdevice = &retainedmem0;
+	};
+};
+
+&sram0 {
+	/* Shrink SRAM size to avoid overlap with retained memory region */
+	reg = <0x20000000 DT_SIZE_K(252)>;
+};