[PATCH 3/5] ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 board

[Jagan Teki]

MicroDev 2.0 is a general purpose miniature carrier board with CAN,
LTE and LVDS panel interfaces.

Genaral features:
- Ethernet 10/100
- USB Type A
- Audio Out
- microSD
- LVDS panel connector
- Wifi/BT (option)
- UMTS LTE with sim connector (option)

MicroGEA STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

MicroGEA STM32MP1 needs to mount on top of this MicroDev 2.0 board
for creating complete MicroGEA STM32MP1 MicroDev 2.0 Carrier board.

Add support for it.

Signed-off-by: Matteo Lisi <matteo.lisi@xxxxxxxxxxx>
Signed-off-by: Francesco Utel <francesco.utel@xxxxxxxxxxx>
Signed-off-by: Mirko Ardinghi <mirko.ardinghi@xxxxxxxxxxx>
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/Makefile                    |  1 +
 .../dts/stm32mp157a-engicam-microdev2.0.dtsi  | 44 +++++++++++++++++++
 ...32mp157a-microgea-stm32mp1-microdev2.0.dts | 21 +++++++++
 3 files changed, 66 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-engicam-microdev2.0.dtsi
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 9f9f3e49132a..b4a9cd071f99 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1071,6 +1071,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-dhcor-avenger96.dtb \
 	stm32mp157a-dk1.dtb \
 	stm32mp157a-iot-box.dtb \
+	stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
 	stm32mp157a-stinger96.dtb \
 	stm32mp157c-dhcom-pdk2.dtb \
 	stm32mp157c-dhcom-picoitx.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-engicam-microdev2.0.dtsi b/arch/arm/boot/dts/stm32mp157a-engicam-microdev2.0.dtsi
new file mode 100644
index 000000000000..a5c04eb80a99
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-engicam-microdev2.0.dtsi
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
+ * Copyright (c) 2020 Engicam srl
+ * Copyright (c) 2020 Amarula Solutons(India)
+ */
+
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	aliases {
+		serial0 = &uart4;
+		serial1 = &uart8;
+	};
+};
+
+&sdmmc1{
+	bus-width = <4>;
+	disable-wp;
+	pinctrl-names = "default", "opendrain", "sleep";
+	pinctrl-0 = <&sdmmc1_b4_pins_a>;
+	pinctrl-1 = <&sdmmc1_b4_od_pins_a>;
+	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
+	st,neg-edge;
+	vmmc-supply = <&vdd>;
+	status = "okay";
+};
+
+&uart4{
+	pinctrl-names = "default", "sleep", "idle";
+	pinctrl-0 = <&uart4_pins_a>;
+	pinctrl-1 = <&uart4_sleep_pins_a>;
+	pinctrl-2 = <&uart4_idle_pins_a>;
+	status = "okay";
+};
+
+/* J31: RS323 */
+&uart8 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart8_pins_a>;
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts
new file mode 100644
index 000000000000..51707bfb649d
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
+ * Copyright (c) 2020 Engicam srl
+ * Copyright (c) 2020 Amarula Solutons(India)
+ */
+
+/dts-v1/;
+#include "stm32mp157.dtsi"
+#include "stm32mp157a-engicam-microdev2.0.dtsi"
+#include "stm32mp157a-microgea-stm32mp1.dtsi"
+
+/ {
+	model = "Engicam MicroGEA STM32MP1 MicroDev 2.0 Carrier Board";
+	compatible = "engicam,microgea-stm32mp1-microdev2.0",
+		     "engicam,microgea-stm32mp1", "st,stm32mp157";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
-- 
2.25.1