board: imx8mm: Add Engicam i.Core MX8M Mini EDIMM2.2 Starter Kit

Engicam EDIMM2.2 Starter Kit is an EDIMM 2.2 Form Factor Capacitive
Evaluation Board.

Genaral features:
- LCD 7" C.Touch
- microSD slot
- Ethernet 1Gb
- Wifi/BT
- 2x LVDS Full HD interfaces
- 3x USB 2.0
- 1x USB 3.0
- HDMI Out
- Mini PCIe
- MIPI CSI
- 2x CAN
- Audio Out

i.Core MX8M Mini is an EDIMM SoM based on NXP i.MX8M Mini from Engicam.

i.Core MX8M Mini needs to mount on top of this Evaluation board for
creating complete i.Core MX8M Mini EDIMM2.2 Starter Kit.

Linux dts commit details:

commit <051c08eea682> ("arm64: dts: imx8mm: Add Engicam i.Core MX8M Mini
EDIMM2.2 Starter Kit")

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

5 files changed, 170 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a5cae010c2..120ac613c8 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -835,6 +835,7 @@ dtb-$(CONFIG_ARCH_IMX8) += \
 
 dtb-$(CONFIG_ARCH_IMX8M) += \
 	imx8mm-evk.dtb \
+	imx8mm-icore-mx8mm-edimm2.2.dtb \
 	imx8mm-venice.dtb \
 	imx8mm-venice-gw71xx-0x.dtb \
 	imx8mm-venice-gw72xx-0x.dtb \
diff --git a/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2-u-boot.dtsi b/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2-u-boot.dtsi
new file mode 100644
index 0000000000..8b67bcff7d
--- /dev/null
+++ b/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2-u-boot.dtsi
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Engicam srl
+ * Copyright (c) 2020 Amarula Solutions(India)
+ */
+
+#include "imx8mm-icore-mx8mm-u-boot.dtsi"
+
+&gpio1 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_uart2 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc1_gpio {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc1 {
+	u-boot,dm-spl;
+};
+
+&uart2 {
+	u-boot,dm-spl;
+};
+
+&usdhc1 {
+	u-boot,dm-spl;
+};
diff --git a/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2.dts b/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2.dts
new file mode 100644
index 0000000000..a4a2ada148
--- /dev/null
+++ b/arch/arm/dts/imx8mm-icore-mx8mm-edimm2.2.dts
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2019 NXP
+ * Copyright (c) 2019 Engicam srl
+ * Copyright (c) 2020 Amarula Solutions(India)
+ */
+
+/dts-v1/;
+#include "imx8mm.dtsi"
+#include "imx8mm-icore-mx8mm.dtsi"
+
+/ {
+	model = "Engicam i.Core MX8M Mini EDIMM2.2 Starter Kit";
+	compatible = "engicam,icore-mx8mm-edimm2.2", "engicam,icore-mx8mm",
+		     "fsl,imx8mm";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+};
+
+&fec1 {
+	status = "okay";
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+};
+
+&i2c4 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C2_SCL_I2C2_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C2_SDA_I2C2_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL		0x400001c3
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA		0x400001c3
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_UART2_RXD_UART2_DCE_RX	0x140
+			MX8MM_IOMUXC_UART2_TXD_UART2_DCE_TX	0x140
+		>;
+	};
+
+	pinctrl_usdhc1_gpio: usdhc1gpiogrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6	0x41
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SD1_CLK_USDHC1_CLK		0x190
+			MX8MM_IOMUXC_SD1_CMD_USDHC1_CMD		0x1d0
+			MX8MM_IOMUXC_SD1_DATA0_USDHC1_DATA0	0x1d0
+			MX8MM_IOMUXC_SD1_DATA1_USDHC1_DATA1	0x1d0
+			MX8MM_IOMUXC_SD1_DATA2_USDHC1_DATA2	0x1d0
+			MX8MM_IOMUXC_SD1_DATA3_USDHC1_DATA3	0x1d0
+		>;
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+/* SD */
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>, <&pinctrl_usdhc1_gpio>;
+	cd-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+	max-frequency = <50000000>;
+	bus-width = <4>;
+	no-1-8-v;
+	pm-ignore-notify;
+	keep-power-in-suspend;
+	status = "okay";
+};
diff --git a/arch/arm/dts/imx8mm-icore-mx8mm-u-boot.dtsi b/arch/arm/dts/imx8mm-icore-mx8mm-u-boot.dtsi
new file mode 100644
index 0000000000..e7d179d632
--- /dev/null
+++ b/arch/arm/dts/imx8mm-icore-mx8mm-u-boot.dtsi
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2020 Engicam srl
+ * Copyright (c) 2020 Amarula Solutions(India)
+ */
+
+#include "imx8mm-u-boot.dtsi"
+
+&iomuxc {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc3 {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc3_100mhz {
+	u-boot,dm-spl;
+};
+
+&pinctrl_usdhc3_200mhz {
+	u-boot,dm-spl;
+};
+
+&usdhc3 {
+	u-boot,dm-spl;
+};
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index c27fb248d1..bf14f2deda 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -45,6 +45,19 @@ config TARGET_IMX8MM_EVK
 	select SUPPORT_SPL
 	select IMX8M_LPDDR4
 
+config TARGET_IMX8MM_ICORE_MX8MM
+	bool "Engicam i.Core MX8M Mini SOM"
+	select IMX8MM
+	select SUPPORT_SPL
+	select IMX8M_LPDDR4
+	help
+	  i.Core MX8M Mini is an EDIMM SOM based on NXP i.MX8MM.
+
+	  i.Core MX8M Mini EDIMM2.2:
+	  * EDIMM2.2 is a Form Factor Capacitive Evaluation Board.
+	  * i.Core MX8M Mini needs to mount on top of EDIMM2.2 for
+	    creating complete i.Core MX8M Mini EDIMM2.2 Starter Kit.
+
 config TARGET_IMX8MM_VENICE
 	bool "Support Gateworks Venice iMX8M Mini module"
 	select IMX8MM
@@ -108,6 +121,7 @@ config TARGET_PHYCORE_IMX8MP
 	select IMX8M_LPDDR4
 endchoice
 
+source "board/engicam/imx8mm/Kconfig"
 source "board/freescale/imx8mq_evk/Kconfig"
 source "board/freescale/imx8mm_evk/Kconfig"
 source "board/freescale/imx8mn_evk/Kconfig"