[PATCH v2 4/6] ARM: dts: stm32: Add Stinger96 board support

From: mani
Date: Sun May 03 2020 - 11:42:54 EST

From: Manivannan Sadhasivam <mani@xxxxxxxxxx>

Stinger96 is a 96Boards IoT Extended edition board designed and
manufactured by Shiratech solutions based on STM32MP1 SoC. Following
are the features of this board:

* 256MB DDR
* 125MB NAND Flash
* Onboard BG96 modem
* 1x uSD
* 2x USB (1 available as external connector and another connected to BG96)
* 1x SPI
* 1x PCM
* 2x UART (apart from serial console)
* 2x I2C (apart from one connected to PMIC)

Following peripherals are tested and known to work:

* BG96 modem
* 1x I2C (LS-I2C0)
* 1x SPI
* 1x UART (LS-UART0)
* USB (Only Gadget mode)
* uSD

More information about this board can be found in Shiratech website:
https://www.shiratech-solutions.com/products/stinger96/

Signed-off-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/stm32mp157a-stinger96.dts | 12 +
arch/arm/boot/dts/stm32mp157a-stinger96.dtsi | 342 +++++++++++++++++++
3 files changed, 355 insertions(+)
create mode 100644 arch/arm/boot/dts/stm32mp157a-stinger96.dts
create mode 100644 arch/arm/boot/dts/stm32mp157a-stinger96.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f43467b02bcd..966b81dfffd6 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1030,6 +1030,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
stm32h743i-disco.dtb \
stm32mp157a-avenger96.dtb \
stm32mp157a-dk1.dtb \
+ stm32mp157a-stinger96.dtb \
stm32mp157c-dhcom-pdk2.dtb \
stm32mp157c-dk2.dtb \
stm32mp157c-ed1.dtb \
diff --git a/arch/arm/boot/dts/stm32mp157a-stinger96.dts b/arch/arm/boot/dts/stm32mp157a-stinger96.dts
new file mode 100644
index 000000000000..249a53877512
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-stinger96.dts
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2020 Manivannan Sadhasivam
+ */
+
+/dts-v1/;
+#include "stm32mp157a-stinger96.dtsi"
+
+/ {
+ model = "Shiratech STM32MP157A Stinger96 board";
+ compatible = "shiratech,stm32mp157a-stinger96", "st,stm32mp157";
+};
diff --git a/arch/arm/boot/dts/stm32mp157a-stinger96.dtsi b/arch/arm/boot/dts/stm32mp157a-stinger96.dtsi
new file mode 100644
index 000000000000..58275bcf9e26
--- /dev/null
+++ b/arch/arm/boot/dts/stm32mp157a-stinger96.dtsi
@@ -0,0 +1,342 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2020 Manivannan Sadhasivam
+ */
+
+/dts-v1/;
+
+#include "stm32mp157.dtsi"
+#include "stm32mp15-pinctrl.dtsi"
+#include "stm32mp15xxac-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/mfd/st,stpmic1.h>
+
+/ {
+ aliases {
+ mmc0 = &sdmmc1;
+ serial0 = &uart4;
+ serial1 = &uart7;
+ serial2 = &usart2;
+ spi0 = &spi4;
+ };
+
+ chosen {
+ stdout-path = "serial1:115200n8";
+ };
+
+ memory@c0000000 {
+ device_type = "memory";
+ reg = <0xc0000000 0x10000000>;
+ };
+
+ led {
+ compatible = "gpio-leds";
+
+ led1 {
+ label = "green:user1";
+ gpios = <&gpioa 13 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ default-state = "off";
+ };
+
+ led2 {
+ label = "green:user2";
+ gpios = <&gpioh 3 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc0";
+ default-state = "off";
+ };
+
+ led3 {
+ label = "green:user3";
+ gpios = <&gpioh 2 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "mmc1";
+ default-state = "off";
+ };
+
+ led4 {
+ label = "green:user4";
+ gpios = <&gpiof 12 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "none";
+ default-state = "off";
+ panic-indicator;
+ };
+ };
+
+ sd_switch: regulator-sd_switch {
+ compatible = "regulator-gpio";
+ regulator-name = "sd_switch";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2900000>;
+ regulator-type = "voltage";
+ regulator-always-on;
+
+ gpios = <&gpioa 8 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+ states = <1800000 0x1>,
+ <2900000 0x0>;
+ };
+};
+
+/* Only headless mode is supported */
+&gpu {
+ status = "disabled";
+};
+
+/* LS-I2C0 */
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_a>;
+ i2c-scl-rising-time-ns = <1000>;
+ i2c-scl-falling-time-ns = <300>;
+ status = "okay";
+ /delete-property/dmas;
+ /delete-property/dma-names;
+};
+
+&i2c4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c4_pins_a>;
+ i2c-scl-rising-time-ns = <185>;
+ i2c-scl-falling-time-ns = <20>;
+ status = "okay";
+ /delete-property/dmas;
+ /delete-property/dma-names;
+
+ pmic: stpmic@33 {
+ compatible = "st,stpmic1";
+ reg = <0x33>;
+ interrupts-extended = <&gpioa 0 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ status = "okay";
+
+ regulators {
+ compatible = "st,stpmic1-regulators";
+
+ ldo1-supply = <&v3v3>;
+ ldo2-supply = <&v3v3>;
+ ldo3-supply = <&vdd_ddr>;
+ ldo5-supply = <&v3v3>;
+ ldo6-supply = <&v3v3>;
+ pwr_sw1-supply = <&bst_out>;
+ pwr_sw2-supply = <&bst_out>;
+
+ vddcore: buck1 {
+ regulator-name = "vddcore";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1350000>;
+ regulator-always-on;
+ regulator-initial-mode = <0>;
+ regulator-over-current-protection;
+ };
+
+ vdd_ddr: buck2 {
+ regulator-name = "vdd_ddr";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-always-on;
+ regulator-initial-mode = <0>;
+ regulator-over-current-protection;
+ };
+
+ vdd: buck3 {
+ regulator-name = "vdd";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ st,mask-reset;
+ regulator-initial-mode = <0>;
+ regulator-over-current-protection;
+ };
+
+ v3v3: buck4 {
+ regulator-name = "v3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ regulator-over-current-protection;
+ regulator-initial-mode = <0>;
+ };
+
+ vdda: ldo1 {
+ regulator-name = "vdda";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ interrupts = <IT_CURLIM_LDO1 0>;
+ };
+
+ v2v9: ldo2 {
+ regulator-name = "v2v9";
+ regulator-min-microvolt = <2900000>;
+ regulator-max-microvolt = <2900000>;
+ regulator-always-on;
+ interrupts = <IT_CURLIM_LDO2 0>;
+ };
+
+ vtt_ddr: ldo3 {
+ regulator-name = "vtt_ddr";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <750000>;
+ regulator-always-on;
+ regulator-over-current-protection;
+ };
+
+ vdd_usb: ldo4 {
+ regulator-name = "vdd_usb";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ interrupts = <IT_CURLIM_LDO4 0>;
+ };
+
+ vdd_sd: ldo5 {
+ regulator-name = "vdd_sd";
+ regulator-min-microvolt = <2900000>;
+ regulator-max-microvolt = <2900000>;
+ interrupts = <IT_CURLIM_LDO5 0>;
+ regulator-boot-on;
+ };
+
+ v1v8: ldo6 {
+ regulator-name = "v1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ interrupts = <IT_CURLIM_LDO6 0>;
+ };
+
+ vref_ddr: vref_ddr {
+ regulator-name = "vref_ddr";
+ regulator-always-on;
+ regulator-over-current-protection;
+ };
+
+ bst_out: boost {
+ regulator-name = "bst_out";
+ interrupts = <IT_OCP_BOOST 0>;
+ };
+
+ vbus_otg: pwr_sw1 {
+ regulator-name = "vbus_otg";
+ interrupts = <IT_OCP_OTG 0>;
+ regulator-active-discharge;
+ };
+
+ vbus_sw: pwr_sw2 {
+ regulator-name = "vbus_sw";
+ interrupts = <IT_OCP_SWOUT 0>;
+ regulator-active-discharge;
+ };
+ };
+
+ onkey {
+ compatible = "st,stpmic1-onkey";
+ interrupts = <IT_PONKEY_F 0>, <IT_PONKEY_R 1>;
+ interrupt-names = "onkey-falling", "onkey-rising";
+ status = "okay";
+ };
+
+ watchdog {
+ compatible = "st,stpmic1-wdt";
+ status = "disabled";
+ };
+ };
+};
+
+&iwdg2 {
+ timeout-sec = <32>;
+ status = "okay";
+};
+
+&pwr_regulators {
+ vdd-supply = <&vdd>;
+ vdd_3v3_usbfs-supply = <&vdd_usb>;
+};
+
+&rng1 {
+ status = "okay";
+};
+
+&rtc {
+ status = "okay";
+};
+
+&sdmmc1 {
+ pinctrl-names = "default", "opendrain", "sleep";
+ pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_b>;
+ pinctrl-1 = <&sdmmc1_b4_od_pins_a &sdmmc1_dir_pins_b>;
+ pinctrl-2 = <&sdmmc1_b4_sleep_pins_a &sdmmc1_dir_sleep_pins_b>;
+ broken-cd;
+ disable-wp;
+ st,sig-dir;
+ st,neg-edge;
+ st,use-ckin;
+ bus-width = <4>;
+ vmmc-supply = <&vdd_sd>;
+ vqmmc-supply = <&sd_switch>;
+ status = "okay";
+};
+
+/* LS-SPI0 */
+&spi4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi4_pins_a>;
+ cs-gpios = <&gpioe 11 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+};
+
+/* BG96 */
+&usart2 {
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&usart2_pins_b>;
+ pinctrl-1 = <&usart2_sleep_pins_b>;
+ st,hw-flow-ctrl;
+ status = "okay";
+};
+
+/* LS-UART0 */
+&uart4 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart4_pins_c>;
+ st,hw-flow-ctrl;
+ status = "okay";
+};
+
+/* Debug console */
+&uart7 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart7_pins_b>;
+ status = "okay";
+};
+
+&usbh_ehci {
+ phys = <&usbphyc_port0>;
+ phy-names = "usb";
+ status = "okay";
+};
+
+&usbotg_hs {
+ dr_mode = "peripheral";
+ pinctrl-0 = <&usbotg_hs_pins_a>;
+ pinctrl-names = "default";
+ phy-names = "usb2-phy";
+ phys = <&usbphyc_port1 0>;
+ vbus-supply = <&vbus_otg>;
+ status = "okay";
+};
+
+&usbphyc {
+ status = "okay";
+};
+
+&usbphyc_port0 {
+ phy-supply = <&vdd_usb>;
+ vdda1v1-supply = <&reg11>;
+ vdda1v8-supply = <&reg18>;
+};
+
+&usbphyc_port1 {
+ phy-supply = <&vdd_usb>;
+ vdda1v1-supply = <&reg11>;
+ vdda1v8-supply = <&reg18>;
+};
--
2.17.1