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@xxxxxxxxxxx>
Signed-off-by: Francesco Utel <francesco.utel@xxxxxxxxxxx>
Signed-off-by: Mirko Ardinghi <mirko.ardinghi@xxxxxxxxxxx>
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
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";
+};
