[PATCH v2 00/10] ARM: dts: stm32: Add Engicam STM32MP1 SoM

[PATCH v2 00/10] ARM: dts: stm32: Add Engicam STM32MP1 SoM

[Jagan Teki]

This is the initial series to support Engicam MicroGEA STM32MP1 and
i.Core STM32MP1 SoM and it's associated carrier board dts(i) support.

Changes for v2:
- fixed v1 comments
- add i.Core STM32MP1 SoM 

Jagan Teki (10):
  dt-bindings: arm: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0
  ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 SoM
  ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 board
  dt-bindings: arm: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 7" OF
  ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 7" OF
  dt-bindings: arm: stm32: Add Engicam i.Core STM32MP1 C.TOUCH 2.0
  ARM: dts: stm32: Add Engicam i.Core STM32MP1 SoM
  ARM: dts: stm32: Add Engicam i.Core STM32MP1 C.TOUCH 2.0
  dt-bindings: arm: stm32: Add Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit
  ARM: dts: stm32: Add Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit

 .../devicetree/bindings/arm/stm32/stm32.yaml  |  17 ++
 arch/arm/boot/dts/Makefile                    |   4 +
 .../stm32mp157a-icore-stm32mp1-ctouch2.dts    |  47 +++++
 .../stm32mp157a-icore-stm32mp1-edimm2.2.dts   |  47 +++++
 .../boot/dts/stm32mp157a-icore-stm32mp1.dtsi  | 195 ++++++++++++++++++
 ...157a-microgea-stm32mp1-microdev2.0-of7.dts | 154 ++++++++++++++
 ...32mp157a-microgea-stm32mp1-microdev2.0.dts |  55 +++++
 .../dts/stm32mp157a-microgea-stm32mp1.dtsi    | 147 +++++++++++++
 8 files changed, 666 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2.dts
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-edimm2.2.dts
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1.dtsi
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dts
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi

-- 
2.25.1

[PATCH v2 01/10] dt-bindings: arm: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0

[Jagan Teki]

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

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

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

Add bindings for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- none

 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index e7525a3395e5..56b7e0b800b3 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -64,6 +64,13 @@ properties:
           - const: st,stm32mp157c-ev1
           - const: st,stm32mp157c-ed1
           - const: st,stm32mp157
+
+      - description: Engicam MicroGEA STM32MP1 SoM based Boards
+        items:
+          - const: engicam,microgea-stm32mp1-microdev2.0
+          - const: engicam,microgea-stm32mp1
+          - const: st,stm32mp157
+
       - description: Octavo OSD32MP15x System-in-Package based boards
         items:
           - enum:
-- 
2.25.1

[PATCH v2 02/10] ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 SoM

[Jagan Teki]

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

General features:
- STM32MP157AAC
- Up to 1GB DDR3L-800
- 512MB Nand flash
- I2S

MicroGEA STM32MP1 needs to mount on top of Engicam MicroDev carrier
boards for creating complete platform solutions.

Add support for it.

Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com>
Signed-off-by: Francesco Utel <francesco.utel@engicam.com>
Signed-off-by: Mirko Ardinghi <mirko.ardinghi@engicam.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- none

 .../dts/stm32mp157a-microgea-stm32mp1.dtsi    | 147 ++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi

diff --git a/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
new file mode 100644
index 000000000000..97d569107bfe
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
@@ -0,0 +1,147 @@
+// 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)
+ */
+
+/ {
+	compatible = "engicam,microgea-stm32mp1", "st,stm32mp157";
+
+	memory@c0000000 {
+		reg = <0xc0000000 0x10000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		mcuram2: mcuram2@10000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10000000 0x40000>;
+			no-map;
+		};
+
+		vdev0vring0: vdev0vring0@10040000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10040000 0x1000>;
+			no-map;
+		};
+
+		vdev0vring1: vdev0vring1@10041000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10041000 0x1000>;
+			no-map;
+		};
+
+		vdev0buffer: vdev0buffer@10042000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10042000 0x4000>;
+			no-map;
+		};
+
+		mcuram: mcuram@30000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x30000000 0x40000>;
+			no-map;
+		};
+
+		retram: retram@38000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x38000000 0x10000>;
+			no-map;
+		};
+	};
+
+	vin: regulator-vin {
+		compatible = "regulator-fixed";
+		regulator-name = "vin";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	vddcore: regulator-vddcore {
+		compatible = "regulator-fixed";
+		regulator-name = "vddcore";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+		vin-supply = <&vin>;
+	};
+
+	vdd: regulator-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		vin-supply = <&vin>;
+	};
+
+	vddq_ddr: regulator-vddq-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vddq_ddr";
+		regulator-min-microvolt = <1350000>;
+		regulator-max-microvolt = <1350000>;
+		regulator-always-on;
+		vin-supply = <&vin>;
+	};
+};
+
+&dts {
+	status = "okay";
+};
+
+&fmc {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&fmc_pins_a>;
+	pinctrl-1 = <&fmc_sleep_pins_a>;
+	status = "okay";
+
+	nand-controller@4,0 {
+		status = "okay";
+
+		nand@0 {
+			reg = <0>;
+			nand-on-flash-bbt;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+	};
+};
+
+&ipcc {
+	status = "okay";
+};
+
+&iwdg2{
+	timeout-sec = <32>;
+	status = "okay";
+};
+
+&m4_rproc{
+	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
+			<&vdev0vring1>, <&vdev0buffer>;
+	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+	mbox-names = "vq0", "vq1", "shutdown";
+	interrupt-parent = <&exti>;
+	interrupts = <68 1>;
+	status = "okay";
+};
+
+&rng1 {
+	status = "okay";
+};
+
+&rtc{
+	status = "okay";
+};
+
+&vrefbuf {
+	regulator-min-microvolt = <2500000>;
+	regulator-max-microvolt = <2500000>;
+	vdda-supply = <&vdd>;
+	status = "okay";
+};
-- 
2.25.1

[PATCH v2 03/10] 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@engicam.com>
Signed-off-by: Francesco Utel <francesco.utel@engicam.com>
Signed-off-by: Mirko Ardinghi <mirko.ardinghi@engicam.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- don't create carrier board dtsi, add it in final dts.

 arch/arm/boot/dts/Makefile                    |  1 +
 ...32mp157a-microgea-stm32mp1-microdev2.0.dts | 55 +++++++++++++++++++
 2 files changed, 56 insertions(+)
 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-microgea-stm32mp1-microdev2.0.dts b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts
new file mode 100644
index 000000000000..7a75868164dc
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0.dts
@@ -0,0 +1,55 @@
+// 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-microgea-stm32mp1.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Engicam MicroGEA STM32MP1 MicroDev 2.0 Carrier Board";
+	compatible = "engicam,microgea-stm32mp1-microdev2.0",
+		     "engicam,microgea-stm32mp1", "st,stm32mp157";
+
+	aliases {
+		serial0 = &uart4;
+		serial1 = &uart8;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&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";
+};
-- 
2.25.1

[PATCH v2 04/10] dt-bindings: arm: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 7" OF

[Jagan Teki]

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

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

7" OF is a capacitive touch 7" Open Frame panel solutions.

MicroGEA STM32MP1 needs to mount on top of MicroDev 2.0 board with
pluged 7" OF for creating complete MicroGEA STM32MP1 MicroDev 2.0
7" Open Frame Solution board.

Add bindings for it.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- collect a-b 

 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 56b7e0b800b3..255d3ba50c63 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -67,7 +67,9 @@ properties:
 
       - description: Engicam MicroGEA STM32MP1 SoM based Boards
         items:
-          - const: engicam,microgea-stm32mp1-microdev2.0
+          - enum:
+              - engicam,microgea-stm32mp1-microdev2.0
+              - engicam,microgea-stm32mp1-microdev2.0-of7
           - const: engicam,microgea-stm32mp1
           - const: st,stm32mp157
 
-- 
2.25.1

[PATCH v2 05/10] ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 MicroDev 2.0 7" OF

[Jagan Teki]

7" OF is a capacitive touch 7" Open Frame panel solutions with
- 7" AUO B101AW03 LVDS panel
- EDT, FT5526 Touch

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

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

MicroGEA STM32MP1 needs to mount on top of MicroDev 2.0 board with
pluged 7" OF for creating complete MicroGEA STM32MP1 MicroDev 2.0
7" Open Frame Solution board.

Add support for it.

Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com>
Signed-off-by: Francesco Utel <francesco.utel@engicam.com>
Signed-off-by: Mirko Ardinghi <mirko.ardinghi@engicam.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- don't create carrier board dtsi, add it in final dts.

 arch/arm/boot/dts/Makefile                    |   1 +
 ...157a-microgea-stm32mp1-microdev2.0-of7.dts | 154 ++++++++++++++++++
 2 files changed, 155 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b4a9cd071f99..1332622a3f9f 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1072,6 +1072,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-dk1.dtb \
 	stm32mp157a-iot-box.dtb \
 	stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
+	stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dtb \
 	stm32mp157a-stinger96.dtb \
 	stm32mp157c-dhcom-pdk2.dtb \
 	stm32mp157c-dhcom-picoitx.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dts b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dts
new file mode 100644
index 000000000000..674b2d330dc4
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dts
@@ -0,0 +1,154 @@
+// 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-microgea-stm32mp1.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Engicam MicroGEA STM32MP1 MicroDev 2.0 7\" Open Frame";
+	compatible = "engicam,microgea-stm32mp1-microdev2.0-of7",
+		     "engicam,microgea-stm32mp1", "st,stm32mp157";
+
+	aliases {
+		serial0 = &uart4;
+		serial1 = &uart8;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	backlight: backlight {
+		compatible = "gpio-backlight";
+		gpios = <&gpiod 13 GPIO_ACTIVE_HIGH>;
+		default-on;
+	};
+
+	lcd_3v3: regulator-lcd-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "lcd_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpiof 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+		power-supply = <&panel_pwr>;
+	};
+
+	panel_pwr: regulator-panel-pwr {
+		compatible = "regulator-fixed";
+		regulator-name = "panel_pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpiob 10 GPIO_ACTIVE_HIGH>;
+		regulator-always-on;
+	};
+
+	panel {
+		compatible = "auo,b101aw03";
+		backlight = <&backlight>;
+		enable-gpios = <&gpiof 2 GPIO_ACTIVE_HIGH>;
+		power-supply = <&lcd_3v3>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+	};
+};
+
+&i2c2 {
+	i2c-scl-falling-time-ns = <20>;
+	i2c-scl-rising-time-ns = <185>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c2_pins_a>;
+	pinctrl-1 = <&i2c2_sleep_pins_a>;
+	status = "okay";
+};
+
+&ltdc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ltdc_pins>;
+	status = "okay";
+
+	port {
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&panel_in>;
+		};
+	};
+};
+
+&pinctrl {
+	ltdc_pins: ltdc {
+		pins {
+			pinmux = <STM32_PINMUX('G', 10, AF14)>,	/* LTDC_B2 */
+				 <STM32_PINMUX('H', 12, AF14)>,	/* LTDC_R6 */
+				 <STM32_PINMUX('H', 11, AF14)>,	/* LTDC_R5 */
+				 <STM32_PINMUX('D', 10, AF14)>,	/* LTDC_B3 */
+				 <STM32_PINMUX('D', 9, AF14)>,	/* LTDC_B0 */
+				 <STM32_PINMUX('E', 5, AF14)>,	/* LTDC_G0 */
+				 <STM32_PINMUX('E', 6, AF14)>,	/* LTDC_G1 */
+				 <STM32_PINMUX('E', 13, AF14)>,	/* LTDC_DE */
+				 <STM32_PINMUX('E', 15, AF14)>,	/* LTDC_R7 */
+				 <STM32_PINMUX('G', 7, AF14)>,	/* LTDC_CLK */
+				 <STM32_PINMUX('G', 12, AF14)>,	/* LTDC_B1 */
+				 <STM32_PINMUX('H', 2, AF14)>,	/* LTDC_R0 */
+				 <STM32_PINMUX('H', 3, AF14)>,	/* LTDC_R1 */
+				 <STM32_PINMUX('H', 8, AF14)>,	/* LTDC_R2 */
+				 <STM32_PINMUX('H', 9, AF14)>,	/* LTDC_R3 */
+				 <STM32_PINMUX('H', 10, AF14)>,	/* LTDC_R4 */
+				 <STM32_PINMUX('H', 13, AF14)>,	/* LTDC_G2 */
+				 <STM32_PINMUX('H', 14, AF14)>,	/* LTDC_G3 */
+				 <STM32_PINMUX('H', 15, AF14)>,	/* LTDC_G4 */
+				 <STM32_PINMUX('I', 0, AF14)>,	/* LTDC_G5 */
+				 <STM32_PINMUX('I', 1, AF14)>,	/* LTDC_G6 */
+				 <STM32_PINMUX('I', 2, AF14)>,	/* LTDC_G7 */
+				 <STM32_PINMUX('I', 4, AF14)>,	/* LTDC_B4 */
+				 <STM32_PINMUX('I', 5, AF14)>,	/* LTDC_B5 */
+				 <STM32_PINMUX('B', 8, AF14)>,	/* LTDC_B6 */
+				 <STM32_PINMUX('I', 7, AF14)>,	/* LTDC_B7 */
+				 <STM32_PINMUX('I', 9, AF14)>,	/* LTDC_VSYNC */
+				 <STM32_PINMUX('I', 10, AF14)>;	/* LTDC_HSYNC */
+			bias-disable;
+			drive-push-pull;
+			slew-rate = <3>;
+		};
+	};
+};
+
+&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";
+};
-- 
2.25.1

[PATCH v2 06/10] dt-bindings: arm: stm32: Add Engicam i.Core STM32MP1 C.TOUCH 2.0

[Jagan Teki]

i.Core STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

C.TOUCH 2.0 is a general purpose carrier board with capacitive
touch interface support.

i.Core STM32MP1 needs to mount on top of this Carrier board for
creating complete i.Core STM32MP1 C.TOUCH 2.0 board.

Add bindings for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch

 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 255d3ba50c63..3e45516403ce 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -65,6 +65,12 @@ properties:
           - const: st,stm32mp157c-ed1
           - const: st,stm32mp157
 
+      - description: Engicam i.Core STM32MP1 SoM based Boards
+        items:
+          - const: engicam,icore-stm32mp1-ctouch2    # STM32MP1 Engicam i.Core STM32MP1 C.TOUCH 2.0
+          - const: engicam,icore-stm32mp1            # STM32MP1 Engicam i.Core STM32MP1 SoM
+          - const: st,stm32mp157
+
       - description: Engicam MicroGEA STM32MP1 SoM based Boards
         items:
           - enum:
-- 
2.25.1

[PATCH v2 07/10] ARM: dts: stm32: Add Engicam i.Core STM32MP1 SoM

[Jagan Teki]

i.Core STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

General features:
- STM32MP157A
- Up to 1GB DDR3L
- 4GB eMMC
- 10/100 Ethernet
- USB 2.0 Host/OTG
- I2S
- MIPI DSI to LVDS
- rest of STM32MP157A features

i.Core STM32MP1 needs to mount on top of Engicam baseboards
for creating complete platform solutions.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch

 .../boot/dts/stm32mp157a-icore-stm32mp1.dtsi  | 195 ++++++++++++++++++
 1 file changed, 195 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1.dtsi

diff --git a/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1.dtsi b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1.dtsi
new file mode 100644
index 000000000000..c8e4b68c5661
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1.dtsi
@@ -0,0 +1,195 @@
+// 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)
+ */
+
+/ {
+	compatible = "engicam,icore-stm32mp1", "st,stm32mp157";
+
+	memory@c0000000 {
+		reg = <0xc0000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		mcuram2: mcuram2@10000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10000000 0x40000>;
+			no-map;
+		};
+
+		vdev0vring0: vdev0vring0@10040000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10040000 0x1000>;
+			no-map;
+		};
+
+		vdev0vring1: vdev0vring1@10041000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10041000 0x1000>;
+			no-map;
+		};
+
+		vdev0buffer: vdev0buffer@10042000 {
+			compatible = "shared-dma-pool";
+			reg = <0x10042000 0x4000>;
+			no-map;
+		};
+
+		mcuram: mcuram@30000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x30000000 0x40000>;
+			no-map;
+		};
+
+		retram: retram@38000000 {
+			compatible = "shared-dma-pool";
+			reg = <0x38000000 0x10000>;
+			no-map;
+		};
+	};
+
+	vddcore: regulator-vddcore {
+		compatible = "regulator-fixed";
+		regulator-name = "vddcore";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-always-on;
+	};
+
+	vdd: regulator-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	vdd_usb: regulator-vdd-usb {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_usb";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	vdda: regulator-vdda {
+		compatible = "regulator-fixed";
+		regulator-name = "vdda";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	vdd_ddr: regulator-vdd-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_ddr";
+		regulator-min-microvolt = <1350000>;
+		regulator-max-microvolt = <1350000>;
+		regulator-always-on;
+	};
+
+	vtt_ddr: regulator-vtt-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vtt_ddr";
+		regulator-min-microvolt = <675000>;
+		regulator-max-microvolt = <675000>;
+		regulator-always-on;
+		vin-supply = <&vdd>;
+	};
+
+	vref_ddr: regulator-vref-ddr {
+		compatible = "regulator-fixed";
+		regulator-name = "vref_ddr";
+		regulator-min-microvolt = <675000>;
+		regulator-max-microvolt = <675000>;
+		regulator-always-on;
+		vin-supply = <&vdd>;
+	};
+
+	vdd_sd: regulator-vdd-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	v3v3: regulator-v3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "v3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	v2v8: regulator-v2v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "v2v8";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		regulator-always-on;
+		vin-supply = <&v3v3>;
+	};
+
+	v1v8: regulator-v1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "v1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		vin-supply = <&v3v3>;
+	};
+};
+
+&dts {
+	status = "okay";
+};
+
+&i2c2 {
+	i2c-scl-falling-time-ns = <20>;
+	i2c-scl-rising-time-ns = <185>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c2_pins_a>;
+	pinctrl-1 = <&i2c2_sleep_pins_a>;
+	status = "okay";
+};
+
+&ipcc {
+	status = "okay";
+};
+
+&iwdg2{
+	timeout-sec = <32>;
+	status = "okay";
+};
+
+&m4_rproc{
+	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
+			<&vdev0vring1>, <&vdev0buffer>;
+	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
+	mbox-names = "vq0", "vq1", "shutdown";
+	interrupt-parent = <&exti>;
+	interrupts = <68 1>;
+	status = "okay";
+};
+
+&rng1 {
+	status = "okay";
+};
+
+&rtc{
+	status = "okay";
+};
+
+&vrefbuf {
+	regulator-min-microvolt = <2500000>;
+	regulator-max-microvolt = <2500000>;
+	vdda-supply = <&vdd>;
+	status = "okay";
+};
-- 
2.25.1

[PATCH v2 08/10] ARM: dts: stm32: Add Engicam i.Core STM32MP1 C.TOUCH 2.0

[Jagan Teki]

Engicam C.TOUCH 2.0 is an EDIMM compliant general purpose Carrier
board.

Genaral features:
- Ethernet 10/100
- Wifi/BT
- USB Type A/OTG
- Audio Out
- CAN
- LVDS panel connector

i.Core STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

i.Core STM32MP1 needs to mount on top of this Carrier board for
creating complete i.Core STM32MP1 C.TOUCH 2.0 board.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch

 arch/arm/boot/dts/Makefile                    |  1 +
 .../stm32mp157a-icore-stm32mp1-ctouch2.dts    | 47 +++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1332622a3f9f..6dc39bddaf7e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1073,6 +1073,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-iot-box.dtb \
 	stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
 	stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dtb \
+	stm32mp157a-icore-stm32mp1-ctouch2.dtb \
 	stm32mp157a-stinger96.dtb \
 	stm32mp157c-dhcom-pdk2.dtb \
 	stm32mp157c-dhcom-picoitx.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2.dts b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2.dts
new file mode 100644
index 000000000000..d3058a036c74
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-ctouch2.dts
@@ -0,0 +1,47 @@
+// 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-icore-stm32mp1.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Engicam i.Core STM32MP1 C.TOUCH 2.0";
+	compatible = "engicam,icore-stm32mp1-ctouch2",
+		     "engicam,icore-stm32mp1", "st,stm32mp157";
+
+	aliases {
+		serial0 = &uart4;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&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 = <&v3v3>;
+	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";
+};
-- 
2.25.1

[PATCH v2 09/10] dt-bindings: arm: stm32: Add Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit

[Jagan Teki]

i.Core STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

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

i.Core STM32MP1 needs to mount on top of this Evaluation board for
creating complete i.Core STM32MP1 EDIMM2.2 Starter Kit.

Add bindings for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch

 Documentation/devicetree/bindings/arm/stm32/stm32.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 3e45516403ce..01f595b8ae1b 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -67,7 +67,9 @@ properties:
 
       - description: Engicam i.Core STM32MP1 SoM based Boards
         items:
-          - const: engicam,icore-stm32mp1-ctouch2    # STM32MP1 Engicam i.Core STM32MP1 C.TOUCH 2.0
+          - enum:
+              - engicam,icore-stm32mp1-ctouch2       # STM32MP1 Engicam i.Core STM32MP1 C.TOUCH 2.0
+              - engicam,icore-stm32mp1-edimm2.2      # STM32MP1 Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit
           - const: engicam,icore-stm32mp1            # STM32MP1 Engicam i.Core STM32MP1 SoM
           - const: st,stm32mp157
 
-- 
2.25.1

[PATCH v2 10/10] ARM: dts: stm32: Add Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit

[Jagan Teki]

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 STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.

i.Core STM32MP1 needs to mount on top of this Evaluation board for
creating complete i.Core STM32MP1 EDIMM2.2 Starter Kit.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch

 arch/arm/boot/dts/Makefile                    |  1 +
 .../stm32mp157a-icore-stm32mp1-edimm2.2.dts   | 47 +++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-edimm2.2.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 6dc39bddaf7e..e86c46d7ca66 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1074,6 +1074,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
 	stm32mp157a-microgea-stm32mp1-microdev2.0.dtb \
 	stm32mp157a-microgea-stm32mp1-microdev2.0-of7.dtb \
 	stm32mp157a-icore-stm32mp1-ctouch2.dtb \
+	stm32mp157a-icore-stm32mp1-edimm2.2.dtb \
 	stm32mp157a-stinger96.dtb \
 	stm32mp157c-dhcom-pdk2.dtb \
 	stm32mp157c-dhcom-picoitx.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-edimm2.2.dts b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-edimm2.2.dts
new file mode 100644
index 000000000000..ec9f1d1cd50f
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-icore-stm32mp1-edimm2.2.dts
@@ -0,0 +1,47 @@
+// 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-icore-stm32mp1.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxaa-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Engicam i.Core STM32MP1 EDIMM2.2 Starter Kit";
+	compatible = "engicam,icore-stm32mp1-edimm2.2",
+		     "engicam,icore-stm32mp1", "st,stm32mp157";
+
+	aliases {
+		serial0 = &uart4;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&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 = <&v3v3>;
+	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";
+};
-- 
2.25.1

Re: [PATCH v2 02/10] ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 SoM

[Alexandre TORGUE]

Hi Jagan

On 2/26/21 8:02 AM, Jagan Teki wrote:
> MicroGEA STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.
> 
> General features:
> - STM32MP157AAC
> - Up to 1GB DDR3L-800
> - 512MB Nand flash
> - I2S
> 
> MicroGEA STM32MP1 needs to mount on top of Engicam MicroDev carrier
> boards for creating complete platform solutions.
> 
> Add support for it.
> 
> Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com>
> Signed-off-by: Francesco Utel <francesco.utel@engicam.com>
> Signed-off-by: Mirko Ardinghi <mirko.ardinghi@engicam.com>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Minor question: if the stm32mp157 is soldered on Microdev boards why do 
you mention it in this commit message ?

+ a minor comment bellow.

thanks
Alex

> ---
> Changes for v2:
> - none
> 
>   .../dts/stm32mp157a-microgea-stm32mp1.dtsi    | 147 ++++++++++++++++++
>   1 file changed, 147 insertions(+)
>   create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> 
> diff --git a/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> new file mode 100644
> index 000000000000..97d569107bfe
> --- /dev/null
> +++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> @@ -0,0 +1,147 @@
> +// 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)
> + */
> +
> +/ {
> +	compatible = "engicam,microgea-stm32mp1", "st,stm32mp157";
> +
> +	memory@c0000000 {

you could add 		device_type = "memory";


> +		reg = <0xc0000000 0x10000000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		mcuram2: mcuram2@10000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10000000 0x40000>;
> +			no-map;
> +		};
> +
> +		vdev0vring0: vdev0vring0@10040000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10040000 0x1000>;
> +			no-map;
> +		};
> +
> +		vdev0vring1: vdev0vring1@10041000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10041000 0x1000>;
> +			no-map;
> +		};
> +
> +		vdev0buffer: vdev0buffer@10042000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x10042000 0x4000>;
> +			no-map;
> +		};
> +
> +		mcuram: mcuram@30000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x30000000 0x40000>;
> +			no-map;
> +		};
> +
> +		retram: retram@38000000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0x38000000 0x10000>;
> +			no-map;
> +		};
> +	};
> +
> +	vin: regulator-vin {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vin";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		regulator-always-on;
> +	};
> +
> +	vddcore: regulator-vddcore {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vddcore";
> +		regulator-min-microvolt = <1200000>;
> +		regulator-max-microvolt = <1200000>;
> +		regulator-always-on;
> +		vin-supply = <&vin>;
> +	};
> +
> +	vdd: regulator-vdd {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		regulator-always-on;
> +		vin-supply = <&vin>;
> +	};
> +
> +	vddq_ddr: regulator-vddq-ddr {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vddq_ddr";
> +		regulator-min-microvolt = <1350000>;
> +		regulator-max-microvolt = <1350000>;
> +		regulator-always-on;
> +		vin-supply = <&vin>;
> +	};
> +};
> +
> +&dts {
> +	status = "okay";
> +};
> +
> +&fmc {
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&fmc_pins_a>;
> +	pinctrl-1 = <&fmc_sleep_pins_a>;
> +	status = "okay";
> +
> +	nand-controller@4,0 {
> +		status = "okay";
> +
> +		nand@0 {
> +			reg = <0>;
> +			nand-on-flash-bbt;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +		};
> +	};
> +};
> +
> +&ipcc {
> +	status = "okay";
> +};
> +
> +&iwdg2{
> +	timeout-sec = <32>;
> +	status = "okay";
> +};
> +
> +&m4_rproc{
> +	memory-region = <&retram>, <&mcuram>, <&mcuram2>, <&vdev0vring0>,
> +			<&vdev0vring1>, <&vdev0buffer>;
> +	mboxes = <&ipcc 0>, <&ipcc 1>, <&ipcc 2>;
> +	mbox-names = "vq0", "vq1", "shutdown";
> +	interrupt-parent = <&exti>;
> +	interrupts = <68 1>;
> +	status = "okay";
> +};
> +
> +&rng1 {
> +	status = "okay";
> +};
> +
> +&rtc{
> +	status = "okay";
> +};
> +
> +&vrefbuf {
> +	regulator-min-microvolt = <2500000>;
> +	regulator-max-microvolt = <2500000>;
> +	vdda-supply = <&vdd>;
> +	status = "okay";
> +};
> 

Re: [PATCH v2 02/10] ARM: dts: stm32: Add Engicam MicroGEA STM32MP1 SoM

[Jagan Teki]

Hi Alexandre,

On Fri, Feb 26, 2021 at 9:42 PM Alexandre TORGUE
<alexandre.torgue@foss.st.com> wrote:
>
> Hi Jagan
>
> On 2/26/21 8:02 AM, Jagan Teki wrote:
> > MicroGEA STM32MP1 is an EDIMM SoM based on STM32MP157A from Engicam.
> >
> > General features:
> > - STM32MP157AAC
> > - Up to 1GB DDR3L-800
> > - 512MB Nand flash
> > - I2S
> >
> > MicroGEA STM32MP1 needs to mount on top of Engicam MicroDev carrier
> > boards for creating complete platform solutions.
> >
> > Add support for it.
> >
> > Signed-off-by: Matteo Lisi <matteo.lisi@engicam.com>
> > Signed-off-by: Francesco Utel <francesco.utel@engicam.com>
> > Signed-off-by: Mirko Ardinghi <mirko.ardinghi@engicam.com>
> > Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
>
> Minor question: if the stm32mp157 is soldered on Microdev boards why do
> you mention it in this commit message ?

It was there in the commit message:

> > General features:
> > - STM32MP157AAC
> > - Up to 1GB DDR3L-800
> > - 512MB Nand flash
> > - I2S

>
> + a minor comment bellow.
>
> thanks
> Alex
>
> > ---
> > Changes for v2:
> > - none
> >
> >   .../dts/stm32mp157a-microgea-stm32mp1.dtsi    | 147 ++++++++++++++++++
> >   1 file changed, 147 insertions(+)
> >   create mode 100644 arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> >
> > diff --git a/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> > new file mode 100644
> > index 000000000000..97d569107bfe
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/stm32mp157a-microgea-stm32mp1.dtsi
> > @@ -0,0 +1,147 @@
> > +// 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)
> > + */
> > +
> > +/ {
> > +     compatible = "engicam,microgea-stm32mp1", "st,stm32mp157";
> > +
> > +     memory@c0000000 {
>
> you could add           device_type = "memory";

Okay.

Jagan.