[PATCH v5 0/3] arm64: dts: Add initial support for Emtop SoM & Baseboard

[PATCH v5 0/3] arm64: dts: Add initial support for Emtop SoM & Baseboard

[Himanshu Bhavani]

Change in v2:
- in patch 1/3:
	- Update dtb add order in Makefile
	- Update proper prefix/name in dts
	- Removed stray blank line
	- Add pinctrl-names

- in patch 2/3:
	- Update bindings

Changes in v3:
- in patch 1/3:
	- Removed dead code
	- Fixed style and indentations

- in patch 3/3:
	- Update vendor prefix

Changes in v4:
- in patch 2/4:
	- Update SoM Name

- in patch 3/4:
	- Add Acked-by

Changes in v5:
- in patch 1/5:
	- Add device tree for Emtop SoM
	- Add device tree for Baseboard
	- Update grp suffix
	- Update alphabetical order of nodes
	- Update bindings

- in patch 2/5:
	- Add bindings for SoM
	- Update bindings for Emtop
	- Add bindings for Baseboard

-in patch 3/5:
	- Update proper vendor prefix


Himanshu Bhavani (3):
  arm64: dts: Add support for Emtop SoM & Baseboard
  dt-bindings: arm: fsl: Add Emtop SoM & Baseboard
  dt-bindings: vendor-prefixes: Add Emtop

 .../devicetree/bindings/arm/fsl.yaml          |   6 +
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx8mm-emtop-baseboard.dts  |  15 +
 .../boot/dts/freescale/imx8mm-emtop-som.dtsi  | 261 ++++++++++++++++++
 5 files changed, 285 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi

-- 
2.25.1

[PATCH v5 1/3] arm64: dts: Add support for Emtop SoM & Baseboard

[Himanshu Bhavani]

Add device tree support for the i.MX8MM Based Emtop SOM-IMX8MMLPD4 (V1)
and IMX8M Mini Baseboard (V1). 
Currently supported are serial console, eMMC.

Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
---
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx8mm-emtop-baseboard.dts  |  15 +
 .../boot/dts/freescale/imx8mm-emtop-som.dtsi  | 261 ++++++++++++++++++
 3 files changed, 277 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 198fff3731ae..20e3ed6642ef 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -54,6 +54,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-beacon-kit.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-data-modul-edm-sbc.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-ddr4-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-emcon-avari.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-emtop-baseboard.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-ctouch2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-icore-mx8mm-edimm2.2.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
new file mode 100644
index 000000000000..724b29b13a86
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-baseboard.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2023 Emtop Embedded Solutions
+ */
+
+/dts-v1/;
+
+#include "imx8mm-emtop-som.dtsi"
+
+/ {
+	model = "Emtop Embedded Solutions i.MX8M Mini Baseboard V1";
+	compatible = "ees,imx8mm-emtop-baseboard", "ees,imx8mm-emtop-som",
+		"fsl,imx8mm";
+
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
new file mode 100644
index 000000000000..67d22d3768aa
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-emtop-som.dtsi
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2023 Emtop Embedded Solutions
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/usb/pd.h>
+
+#include "imx8mm.dtsi"
+
+/ {
+	model = "Emtop Embedded Solutions i.MX8M Mini SOM-IMX8MMLPD4 SoM";
+	compatible = "ees,imx8mm-emtop-som", "fsl,imx8mm";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_led>;
+
+		led-0 {
+			function = LED_FUNCTION_POWER;
+			gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&A53_0 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_1 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_2 {
+	cpu-supply = <&buck2>;
+};
+
+&A53_3 {
+	cpu-supply = <&buck2>;
+};
+
+&i2c1 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+
+	pmic@25 {
+		compatible = "nxp,pca9450c";
+		reg = <0x25>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pmic>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+
+		regulators {
+			buck1: BUCK1 {
+				regulator-name = "BUCK1";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			buck2: BUCK2 {
+				regulator-name = "BUCK2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <900000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-ramp-delay = <3125>;
+			};
+
+			buck3: BUCK3 {
+				regulator-name = "BUCK3";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck4: BUCK4 {
+				regulator-name = "BUCK4";
+				regulator-min-microvolt = <3000000>;
+				regulator-max-microvolt = <3600000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck5: BUCK5 {
+				regulator-name = "BUCK5";
+				regulator-min-microvolt = <1650000>;
+				regulator-max-microvolt = <1950000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			buck6: BUCK6 {
+				regulator-name = "BUCK6";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1200000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo1: LDO1 {
+				regulator-name = "LDO1";
+				regulator-min-microvolt = <1650000>;
+				regulator-max-microvolt = <1950000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo2: LDO2 {
+				regulator-name = "LDO2";
+				regulator-min-microvolt = <800000>;
+				regulator-max-microvolt = <945000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo3: LDO3 {
+				regulator-name = "LDO3";
+				regulator-min-microvolt = <1710000>;
+				regulator-max-microvolt = <1890000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo4: LDO4 {
+				regulator-name = "LDO4";
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <945000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			ldo5: LDO5 {
+				regulator-name = "LDO5";
+				regulator-min-microvolt = <1650000>;
+				regulator-max-microvolt = <3600000>;
+			};
+		};
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_gpio_led: emtop-gpio-led-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16			0x19
+			MX8MM_IOMUXC_SAI3_RXC_GPIO4_IO29			0x19
+		>;
+	};
+
+	pinctrl_i2c1: emtop-i2c1-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL				0x400001c3
+			MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA				0x400001c3
+		>;
+	};
+
+	pinctrl_pmic: emtop-pmic-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3			0x41
+		>;
+	};
+
+	pinctrl_uart2: emtop-uart2-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX			0x140
+			MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX			0x140
+		>;
+	};
+
+	pinctrl_usdhc3: emtop-usdhc3-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK			0x190
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD			0x1d0
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0			0x1d0
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1			0x1d0
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2			0x1d0
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3			0x1d0
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4			0x1d0
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5			0x1d0
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6			0x1d0
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7			0x1d0
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE			0x190
+		>;
+	};
+
+	pinctrl_usdhc3_100mhz: emtop-usdhc3-100mhz-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK			0x194
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD			0x1d4
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0			0x1d4
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1			0x1d4
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2			0x1d4
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3			0x1d4
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4			0x1d4
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5			0x1d4
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6			0x1d4
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7			0x1d4
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE			0x194
+		>;
+	};
+
+	pinctrl_usdhc3_200mhz: emtop-usdhc3-200mhz-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_NAND_WE_B_USDHC3_CLK			0x196
+			MX8MM_IOMUXC_NAND_WP_B_USDHC3_CMD			0x1d6
+			MX8MM_IOMUXC_NAND_DATA04_USDHC3_DATA0			0x1d6
+			MX8MM_IOMUXC_NAND_DATA05_USDHC3_DATA1			0x1d6
+			MX8MM_IOMUXC_NAND_DATA06_USDHC3_DATA2			0x1d6
+			MX8MM_IOMUXC_NAND_DATA07_USDHC3_DATA3			0x1d6
+			MX8MM_IOMUXC_NAND_RE_B_USDHC3_DATA4			0x1d6
+			MX8MM_IOMUXC_NAND_CE2_B_USDHC3_DATA5			0x1d6
+			MX8MM_IOMUXC_NAND_CE3_B_USDHC3_DATA6			0x1d6
+			MX8MM_IOMUXC_NAND_CLE_USDHC3_DATA7			0x1d6
+			MX8MM_IOMUXC_NAND_CE1_B_USDHC3_STROBE			0x196
+		>;
+	};
+
+	pinctrl_wdog: emtop-wdog-grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B			0xc6
+		>;
+	};
+};
--
2.25.1

[PATCH v5 2/3] dt-bindings: arm: fsl: Add Emtop SoM & Baseboard

[Himanshu Bhavani]

Add support for i.MX8MM based Emtop SOM-IMX8MMLPD4 and
IMX8MM Mini Baseboard

Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
---
 Documentation/devicetree/bindings/arm/fsl.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 442ce8f4d675..742773cb4e14 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -904,6 +904,12 @@ properties:
               - prt,prt8mm                # i.MX8MM Protonic PRT8MM Board
           - const: fsl,imx8mm
 
+      - description: Emtop i.MX8MM based Boards
+        items:
+          - const: ees,imx8mm-emtop-baseboard			# i.MX8MM Emtop SoM on i.MX8M Mini Baseboard V1
+          - const: ees,imx8mm-emtop-som			# i.MX8MM Emtop SOM-IMX8MMLPD4 module
+          - const: fsl,imx8mm
+
       - description: Engicam i.Core MX8M Mini SoM based boards
         items:
           - enum:
-- 
2.25.1

[PATCH v5 3/3] dt-bindings: vendor-prefixes: Add Emtop

[Himanshu Bhavani]

Add vendor prefix for Emtop Embedded Solutions
(https://www.emtop-tech.com/)

Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
---
 Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index ed64e06ecca4..88f823e19194 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -384,6 +384,8 @@ patternProperties:
     description: EDIMAX Technology Co., Ltd
   "^edt,.*":
     description: Emerging Display Technologies
+  "^ees,.*":
+    description: Emtop Embedded Solutions
   "^eeti,.*":
     description: eGalax_eMPIA Technology Inc
   "^einfochips,.*":
-- 
2.25.1

Re: [PATCH v5 3/3] dt-bindings: vendor-prefixes: Add Emtop

[Krzysztof Kozlowski]

On 13/05/2023 13:31, Himanshu Bhavani wrote:
> Add vendor prefix for Emtop Embedded Solutions
> (https://www.emtop-tech.com/)
> 
> Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
> ---


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH v5 2/3] dt-bindings: arm: fsl: Add Emtop SoM & Baseboard

[Krzysztof Kozlowski]

On 13/05/2023 13:31, Himanshu Bhavani wrote:
> Add support for i.MX8MM based Emtop SOM-IMX8MMLPD4 and
> IMX8MM Mini Baseboard
> 
> Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
> ---

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH v5 0/3] arm64: dts: Add initial support for Emtop SoM & Baseboard

[Shawn Guo]

On Sat, May 13, 2023 at 05:01:23PM +0530, Himanshu Bhavani wrote:
> Change in v2:
> - in patch 1/3:
> 	- Update dtb add order in Makefile
> 	- Update proper prefix/name in dts
> 	- Removed stray blank line
> 	- Add pinctrl-names
> 
> - in patch 2/3:
> 	- Update bindings
> 
> Changes in v3:
> - in patch 1/3:
> 	- Removed dead code
> 	- Fixed style and indentations
> 
> - in patch 3/3:
> 	- Update vendor prefix
> 
> Changes in v4:
> - in patch 2/4:
> 	- Update SoM Name
> 
> - in patch 3/4:
> 	- Add Acked-by
> 
> Changes in v5:
> - in patch 1/5:
> 	- Add device tree for Emtop SoM
> 	- Add device tree for Baseboard
> 	- Update grp suffix
> 	- Update alphabetical order of nodes
> 	- Update bindings
> 
> - in patch 2/5:
> 	- Add bindings for SoM
> 	- Update bindings for Emtop
> 	- Add bindings for Baseboard
> 
> -in patch 3/5:
> 	- Update proper vendor prefix
> 
> 
> Himanshu Bhavani (3):
>   arm64: dts: Add support for Emtop SoM & Baseboard
>   dt-bindings: arm: fsl: Add Emtop SoM & Baseboard
>   dt-bindings: vendor-prefixes: Add Emtop

Applied all, thanks!