Message-ID: <3b4c600d42e1406aac2c8d11182a9a44@emtrion.de>
Date:   Tue, 30 Nov 2021 08:15:43 +0000
From:   "Mueller, Reinhold" <Reinhold.Mueller@...rion.de>
To:     'Alexandre TORGUE' <alexandre.torgue@...s.st.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
CC:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: AW: [PATCH] arm: dts: stm32mp157c: Add support for the emtrion
 emSBC-Argon

Hi Alexandre,

many thanks for your time and the review.

I have splited the patch in dts- and yaml patches in a patch series
with subject: new emtrion hardware emSBC-Argon

Additional, the patches include the modifications to your comments below.


Reinhold Mueller
Software engineer


emtrion GmbH
Am Hasenbiel 6 | 76297 Stutensee | Germany

Phone +49 7244 62694 20
Fax +49 7244 62694 19
Email Reinhold.Mueller@...rion.de
Online www.emtrion.de




emtrion GmbH • Amtsgericht Mannheim • HRB 110 300 • Geschäftsführer: Ramona Maurer, Achmed Haddou • Umsatzsteueridentifikationsnummer:DE813694260 • Impressum: www.emtrion.de/de/impressum.html

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> -----Ursprüngliche Nachricht-----
> Von: Alexandre TORGUE <alexandre.torgue@...s.st.com>
> Gesendet: Donnerstag, 25. November 2021 17:05
> An: Mueller, Reinhold <Reinhold.Mueller@...rion.de>;
> robh+dt@...nel.org
> Cc: devicetree@...r.kernel.org; linux-kernel@...r.kernel.org
> Betreff: Re: [PATCH] arm: dts: stm32mp157c: Add support for the emtrion
> emSBC-Argon
>
> Hi Reinhold
>
> On 11/24/21 4:54 PM, reinhold.mueller@...rion.com wrote:
> > From: Reinhold Mueller <reinhold.mueller@...rion.de>
> >
> > This patch adds support for the emtrion GmbH Argon board series.
> > They are available with STM32MP157 from STMicroelectronics
> > with 512 MByte Memory.
> >
> > The devicetree stm32mp157c-emstamp-argon.dtsi is the common part
> providing
> > the module components and the basic support for the SoC. The support for
> > the emSBC-Argon baseboard in the developer-kit configuration is provided
> > by the stm32mp157c-emsbc-argon.dts file.
> >
> > Signed-off-by: Reinhold Mueller <reinhold.mueller@...rion.de>
> > ---
> >   .../devicetree/bindings/arm/stm32/stm32.yaml  |   8 +
> >   arch/arm/boot/dts/Makefile                    |   1 +
> >   arch/arm/boot/dts/stm32mp157c-emsbc-argon.dts |  53 ++
> >   .../boot/dts/stm32mp157c-emstamp-argon.dtsi   | 665
> ++++++++++++++++++
> >   4 files changed, 727 insertions(+)
> >   create mode 100644 arch/arm/boot/dts/stm32mp157c-emsbc-argon.dts
> >   create mode 100644 arch/arm/boot/dts/stm32mp157c-emstamp-
> argon.dtsi
> >
>
> Can you split DT patches and yaml patch please? Note, for DT patches
> title should start by "ARM: dts: stm32: Add support for the stm32mp157
> emSBC-Argon'

Ok, splited the patch in dts- and yaml patch in a patch series

>
> > diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
> b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
> > index bcaf7be3ab37..710230847dcd 100644
> > --- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
> > +++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
> > @@ -28,6 +28,14 @@ properties:
> >             - enum:
> >                 - st,stm32mp153
> >                 - st,stm32mp157
> > +
> > +      - description: emtrion STM32MP1 Argon based Boards
> > +        items:
> > +          - enum:
> > +              - emtrion,stm32mp157c-emsbc-argon
> > +          - enum:
> > +              - emtrion,stm32mp157c-emstamp-argon
> > +          - const: st,stm32mp157
> >         - items:
> >             - enum:
> >                 - st,stm32f429i-disco
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 8a2dfdf01ce3..a76226293f18 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -1146,6 +1146,7 @@ dtb-$(CONFIG_ARCH_STM32) += \
> >   stm32mp157c-dhcom-picoitx.dtb \
> >   stm32mp157c-dk2.dtb \
> >   stm32mp157c-ed1.dtb \
> > +stm32mp157c-emsbc-argon.dtb \
> >   stm32mp157c-ev1.dtb \
> >   stm32mp157c-lxa-mc1.dtb \
> >   stm32mp157c-odyssey.dtb
> > diff --git a/arch/arm/boot/dts/stm32mp157c-emsbc-argon.dts
> b/arch/arm/boot/dts/stm32mp157c-emsbc-argon.dts
> > new file mode 100644
> > index 000000000000..3ec873b1ba2d
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/stm32mp157c-emsbc-argon.dts
> > @@ -0,0 +1,53 @@
> > +// SPDX-License-Identifier: (GPL-2.0 or MIT)
> > +//
> > +// Copyright (c) 2021 emtrion GmbH
> > +// Author: Reinhold Müller <reinhold.mueller@...rion.de>.
> > +//
> > +
> > +/dts-v1/;
> > +
> > +#include "stm32mp157c-emstamp-argon.dtsi"
> > +
> > +/ {
> > +model = "emtrion STM32MP157C emSBC-Argon Developer Board";
> > +compatible = "emtrion,stm32mp157c-emsbc-argon",
> "emtrion,stm32mp157c-emstamp-argon",
> > +"st,stm32mp157";
> > +
> > +led: gpio_leds {
> > +compatible = "gpio-leds";
> > +led2 {
> > +label = "red";
> > +gpios = <&gpiof 12 GPIO_ACTIVE_LOW>;
> > +linux,default-trigger = "none";
> > +default-state = "off";
> > +};
> > +led3 {
> > +label = "green";
> > +gpios = <&gpioe 7 GPIO_ACTIVE_LOW>;
> > +linux,default-trigger = "none";
> > +default-state = "off";
> > +};
> > +};
> > +};
> > +
> > +&dac {
> > +status = "okay";
> > +};
> > +
> > +&sdmmc1 {
> > +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>;
> > +cd-gpios = <&gpiob 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
> > +disable-wp;
> > +st,neg-edge;
> > +bus-width = <4>;
> > +vmmc-supply = <&vdd_sd>;
> > +status = "okay";
> > +};
> > +
> > +&spi1 {
> > +status = "okay";
> > +};
> > +
> > diff --git a/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
> b/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
> > new file mode 100644
> > index 000000000000..bcd6a2a687cf
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/stm32mp157c-emstamp-argon.dtsi
> > @@ -0,0 +1,665 @@
> > +// SPDX-License-Identifier: (GPL-2.0 or MIT)
> > +//
> > +// Copyright (c) 2021 emtrion GmbH
> > +// Author: Reinhold Müller <reinhold.mueller@...rion.de>.
> > +//
> > +
> > +#include "stm32mp157.dtsi"
> > +#include "stm32mp15xc.dtsi"
> > +#include "stm32mp15-pinctrl.dtsi"
> > +#include "stm32mp15xxac-pinctrl.dtsi"
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/mfd/st,stpmic1.h>
> > +
> > +/ {
> > +aliases {
> > +ethernet0 = &ethernet0;
> > +serial0 = &uart4;
> > +serial1 = &usart2;
> > +serial2 = &usart3;
> > +};
> > +
> > +chosen {
> > +stdout-path = "serial0:115200n8";
> > +};
> > +
> > +memory@...00000 {
> > +device_type = "memory";
> > +reg = <0xc0000000 0x20000000>;
> > +};
> > +
> > +reserved-memory {
> > +#address-cells = <1>;
> > +#size-cells = <1>;
> > +ranges;
> > +
> > +mcuram2: mcuram2@...00000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x10000000 0x40000>;
> > +no-map;
> > +};
> > +
> > +vdev0vring0: vdev0vring0@...40000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x10040000 0x2000>;
> > +no-map;
> > +};
> > +
> > +vdev0vring1: vdev0vring1@...42000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x10042000 0x2000>;
> > +no-map;
> > +};
> > +
> > +vdev0buffer: vdev0buffer@...44000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x10044000 0x4000>;
> > +no-map;
> > +};
> > +
> > +mcuram: mcuram@...00000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x30000000 0x40000>;
> > +no-map;
> > +};
> > +
> > +retram: retram@...00000 {
> > +compatible = "shared-dma-pool";
> > +reg = <0x38000000 0x10000>;
> > +no-map;
> > +};
> > +
> > +gpu_reserved: gpu@...00000 {
> > +reg = <0xdc000000 0x4000000>;
> > +no-map;
> > +};
> > +};
> > +
> > +led: gpio_leds {
> > +compatible = "gpio-leds";
> > +led0 {
>
> Regarding yaml file, led-0 should be used.
>

Ok, change the names to led-x on all led nodes

> > +label = "panic";
> > +gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
> > +linux,default-trigger = "none";
> > +default-state = "off";
> > +panic-indicator;
> > +};
> > +led1 {
> > +label = "heartbeat";
> > +gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
> > +linux,default-trigger = "heartbeat";
> > +default-state = "on";
> > +};
> > +};
> > +};
> > +
> > +&adc {
> > +/*pinctrl-names = "default"; */
> > +/*pinctrl-0 = <&adc1_in6_pins_a>; */
> > +vdd-supply = <&vdd>;
> > +vdda-supply = <&vdd>;
> > +vref-supply = <&vrefbuf>;
> > +status = "okay";
> > +
> > +adc1: adc@0 {
> > +pinctrl-names = "default";
> > +pinctrl-0 = <&adc1_in6_pins_a>;
> > +st,min-sample-time-nsecs = <5000>;
> > +st,adc-channels = <6>;
> > +status = "disabled";
> > +};
> > +
> > +adc2: adc@100 {
> > +#address-cells = <1>;
> > +#size-cells = <0>;
> > +status = "okay";
> > +channel@12 {
> > +reg = <12>;
> > +label = "sense_temp";
> > +st,min-sample-time-ns = <9000>;
> > +};
> > +channel@15 {
> > +reg = <15>;
> > +label = "vbat";
> > +st,min-sample-time-ns = <9000>;
> > +};
> > +channel@16 {
> > +reg = <16>;
> > +label = "dac_out1";
> > +st,min-sample-time-ns = <9000>;
> > +};
> > +channel@17 {
> > +reg = <17>;
> > +label = "dac_out1";
> > +st,min-sample-time-ns = <9000>;
> > +};
> > +};
> > +};
> > +
> > +&crc1 {
> > +status = "okay";
> > +};
> > +
> > +&cryp1 {
> > +status = "okay";
> > +};
> > +
> > +&dac {
> > +pinctrl-names = "default";
> > +pinctrl-0 = <&dac_ch1_pins_a &dac_ch2_pins_a>;
> > +vref-supply = <&vdda>;
> > +status = "disabled";
> > +
> > +dac1: dac@1 {
> > +status = "okay";
> > +};
> > +dac2: dac@2 {
> > +status = "okay";
> > +};
> > +};
> > +
> > +&dts {
> > +status = "okay";
> > +};
> > +
> > +&ethernet0 {
> > +status = "okay";
> > +snps,reset-gpio = <&gpioa 1 GPIO_ACTIVE_LOW>;
> > +snps,reset-active-low;
> > +snps,reset-delays-us = <0 30000 50000>;
> > +pinctrl-0 = <&ethernet0_rmii_pins>;
> > +pinctrl-1 = <&ethernet0_rmii_pins_sleep>;
> > +pinctrl-names = "default", "sleep";
> > +phy-mode = "rmii";
> > +max-speed = <100>;
> > +phy-handle = <&phy0>;
> > +clock-names = "stmmaceth",
> > +"mac-clk-tx",
> > +"mac-clk-rx",
> > +"ethstp",
> > +"eth-ck",
> > +"syscfg-clk";
> > +clocks = <&rcc ETHMAC>,
> > + <&rcc ETHTX>,
> > + <&rcc ETHRX>,
> > + <&rcc ETHSTP>,
> > + <&rcc ETHCK_K>,
> > + <&rcc SYSCFG>;
>
> Why do you update clocks here ? If one is missingit should be declared
> in stm32mp151.dtis file.

Ok, the clocks already declared in stm32mp151.dtsi

>
> > +st,eth-ref-clk-sel;
> > +
> > +mdio0 {
> > +#address-cells = <1>;
> > +#size-cells = <0>;
> > +compatible = "snps,dwmac-mdio";
> > +phy0: ethernet-phy@0 {
> > +reg = <0>;
> > +};
> > +};
> > +};
> > +
> > +&gpu {
> > +contiguous-area = <&gpu_reserved>;
> > +};
> > +
> > +&hash1 {
> > +status = "okay";
> > +};
> > +
> > +&i2c1 {
> > +pinctrl-names = "default", "sleep";
> > +pinctrl-0 = <&i2c1_pins_a>;
> > +pinctrl-1 = <&i2c1_sleep_pins_a>;
> > +i2c-scl-rising-time-ns = <100>;
> > +i2c-scl-falling-time-ns = <7>;
> > +status = "disabled";
> > +/delete-property/dmas;
> > +/delete-property/dma-names;
> > +};
> > +
> > +&i2c4 {
> > +pinctrl-names = "default", "sleep";
> > +pinctrl-0 = <&i2c4_pins_a>;
> > +pinctrl-1 = <&i2c4_sleep_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>;
> > +ldo3-supply = <&vdd_ddr>;
> > +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 = <1350000>;
> > +regulator-max-microvolt = <1350000>;
> > +regulator-always-on;
> > +regulator-initial-mode = <0>;
> > +regulator-over-current-protection;
> > +};
> > +
> > +vdd: buck3 {
> > +regulator-name = "vdd";
> > +regulator-min-microvolt = <3300000>;
> > +regulator-max-microvolt = <3300000>;
> > +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>;
> > +};
> > +
> > +v1v8_audio: ldo1 {
> > +regulator-name = "v1v8_audio";
> > +regulator-min-microvolt = <1800000>;
> > +regulator-max-microvolt = <1800000>;
> > +regulator-always-on;
> > +interrupts = <IT_CURLIM_LDO1 0>;
> > +};
> > +
> > +v3v3_hdmi: ldo2 {
> > +regulator-name = "v3v3_hdmi";
> > +regulator-min-microvolt = <3300000>;
> > +regulator-max-microvolt = <3300000>;
> > +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 = <3300000>;
> > +regulator-max-microvolt = <3300000>;
> > +interrupts = <IT_CURLIM_LDO5 0>;
> > +regulator-always-on;
> > +};
> > +
> > +vdda: ldo6 {
> > +regulator-name = "vdda";
> > +regulator-min-microvolt = <2900000>;
> > +regulator-max-microvolt = <2900000>;
> > +regulator-always-on;
> > +interrupts = <IT_CURLIM_LDO6 0>;
> > +regulator-boot-on;
> > +};
> > +
> > +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_usbh: pwr_sw2 {
> > +regulator-name = "usbh_vbus";
> > +interrupts = <IT_OCP_SWOUT 0>;
> > +regulator-always-on;
> > +regulator-boot-on;
> > +};
> > +};
> > +
> > +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";
> > +};
> > +};
> > +};
> > +
> > +&i2c5 {
> > +pinctrl-names = "default", "sleep";
> > +pinctrl-0 = <&i2c5_pins_a>;
> > +pinctrl-1 = <&i2c5_sleep_pins_a>;
> > +i2c-scl-rising-time-ns = <185>;
> > +i2c-scl-falling-time-ns = <20>;
> > +status = "disabled";
> > +/delete-property/dmas;
> > +/delete-property/dma-names;
> > +};
> > +
> > +&i2s2 {
> > +status = "disabled";
> > +};
> > +
>
> Do you really need to set it as disabled ?

Ok, the entry is not needed

>
>
> > +&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>;
> > +interrupt-names = "wdg";
> > +recovery;
> > +status = "okay";
> > +};
> > +
> > +&pinctrl {
>
> Add your pin configurations in stm32mp15-pinctrl please.

Ok, added the pin configuurations in stm23mp15-pinctrl

>
> > +ethernet0_rmii_pins: eth0_mx-0 {
> > +pins1 {
> > +pinmux = <STM32_PINMUX('B', 5, AF0)>, /*
> ETH1_CLK */
> > +<STM32_PINMUX('C', 1, AF11)>, /*
> ETH1_MDC */
> > +<STM32_PINMUX('G', 13, AF11)>, /*
> ETH1_TXD0 */
> > +<STM32_PINMUX('G', 14, AF11)>; /*
> ETH1_TXD1 */
> > +bias-disable;
> > +drive-push-pull;
> > +slew-rate = <1>;
> > +};
> > +pins2 {
> > +pinmux = <STM32_PINMUX('A', 2, AF11)>; /*
> ETH1_MDIO */
> > +bias-disable;
> > +drive-push-pull;
> > +slew-rate = <0>;
> > +};
> > +pins3 {
> > +pinmux = <STM32_PINMUX('A', 7, AF11)>, /*
> ETH1_CRS_DV */
> > +<STM32_PINMUX('C', 4, AF11)>, /*
> ETH1_RXD0 */
> > +<STM32_PINMUX('C', 5, AF11)>; /*
> ETH1_RXD1 */
> > +bias-disable;
> > +};
> > +pins4 {
> > +pinmux = <STM32_PINMUX('B', 11, AF11)>; /*
> ETH1_TX_EN */
> > +};
> > +};
> > +
> > +ethernet0_rmii_pins_sleep: eth1_sleep_mx-0 {
> > +pins {
> > +pinmux = <STM32_PINMUX('A', 2, ANALOG)>, /*
> ETH1_MDIO */
> > +<STM32_PINMUX('A', 7, ANALOG)>, /*
> ETH1_CRS_DV */
> > +<STM32_PINMUX('B', 5, ANALOG)>, /*
> ETH1_CLK */
> > +<STM32_PINMUX('B', 11, ANALOG)>, /*
> ETH1_TX_EN */
> > +<STM32_PINMUX('C', 1, ANALOG)>, /*
> ETH1_MDC */
> > +<STM32_PINMUX('C', 4, ANALOG)>, /*
> ETH1_RXD0 */
> > +<STM32_PINMUX('C', 5, ANALOG)>, /*
> ETH1_RXD1 */
> > +<STM32_PINMUX('G', 13, ANALOG)>, /*
> ETH1_TXD0 */
> > +<STM32_PINMUX('G', 14, ANALOG)>; /*
> ETH1_TXD1 */
> > +};
> > +};
> > +
> > +pwm1_pins_a: pwm1-0 {
> > +pins {
> > +pinmux = <STM32_PINMUX('E', 9, AF1)>; /*
> TIM1_CH1 */
> > +bias-pull-down;
> > +drive-push-pull;
> > +slew-rate = <0>;
> > +};
> > +};
> > +
> > +pwm1_sleep_pins_a: pwm1-sleep-0 {
> > +pins {
> > +pinmux = <STM32_PINMUX('E', 9, ANALOG)>; /*
> TIM1_CH1 */
> > +};
> > +};
> > +
> > +usart3_pins_a: usart3-0 {
> > +pins1 {
> > +pinmux = <STM32_PINMUX('B', 10, AF7)>, /*
> USART3_TX */
> > + <STM32_PINMUX('G', 8, AF8)>; /*
> USART3_RTS */
> > +bias-disable;
> > +drive-push-pull;
> > +slew-rate = <0>;
> > +};
> > +pins2 {
> > +pinmux = <STM32_PINMUX('D', 9, AF7)>, /*
> USART3_RX */
> > + <STM32_PINMUX('D', 11, AF7)>; /*
> USART3_CTS_NSS */
> > +bias-disable;
> > +};
> > +};
> > +
> > +usart3_idle_pins_a: usart3-idle-0 {
> > +pins1 {
> > +pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /*
> USART3_TX */
> > + <STM32_PINMUX('G', 8, ANALOG)>, /*
> USART3_RTS */
> > + <STM32_PINMUX('D', 11, ANALOG)>; /*
> USART3_CTS_NSS */
> > +};
> > +pins2 {
> > +pinmux = <STM32_PINMUX('D', 9, AF7)>; /*
> USART3_RX */
> > +bias-disable;
> > +};
> > +};
> > +
> > +usart3_sleep_pins_a: usart3-sleep-0 {
> > +pins {
> > +pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /*
> USART3_TX */
> > + <STM32_PINMUX('G', 8, ANALOG)>, /*
> USART3_RTS */
> > + <STM32_PINMUX('D', 11, ANALOG)>, /*
> USART3_CTS_NSS */
> > + <STM32_PINMUX('D', 9, ANALOG)>; /*
> USART3_RX */
> > +};
> > +};
> > +};
> > +
> > +&pwr_regulators {
> > +vdd-supply = <&vdd>;
> > +vdd_3v3_usbfs-supply = <&vdd_usb>;
> > +};
> > +
> > +&qspi {
> > +pinctrl-names = "default", "sleep";
> > +pinctrl-0 = <&qspi_clk_pins_a &qspi_bk1_pins_a>;
> > +pinctrl-1 = <&qspi_clk_sleep_pins_a &qspi_bk1_sleep_pins_a>;
> > +reg = <0x58003000 0x1000>, <0x70000000 0x4000000>;
> > +#address-cells = <1>;
> > +#size-cells = <0>;
> > +status = "okay";
> > +
> > +flash0: is25lp016d@0 {
> > +compatible = "jedec,spi-nor";
> > +reg = <0>;
> > +spi-max-frequency = <133000000>;
> > +spi-rx-bus-width = <1>;
> > +spi-tx-bus-width = <1>;
> > +#address-cells = <1>;
> > +#size-cells = <1>;
> > +};
> > +};
> > +
> > +&rng1 {
> > +status = "okay";
> > +};
> > +
> > +&rtc {
> > +status = "okay";
> > +};
> > +
> > +&sdmmc2 {
> > +arm,primecell-periphid = <0x10153180>;
> > +pinctrl-names = "default", "opendrain", "sleep";
> > +pinctrl-0 = <&sdmmc2_b4_pins_b>;
> > +pinctrl-1 = <&sdmmc2_b4_od_pins_b>;
> > +pinctrl-2 = <&sdmmc2_b4_sleep_pins_a>;
> > +non-removable;
> > +st,neg-edge;
> > +bus-width = <4>;
> > +vmmc-supply = <&v3v3>;
> > +status = "okay";
> > +};
> > +
> > +&spi1 {
> > +pinctrl-names = "default";
> > +pinctrl-0 = <&spi1_pins_a>;
> > +cs-gpios = <&gpioz 3 0>;
> > +status = "disabled";
> > +
> > +spidev@0  {
> > +compatible = "spidev";
> > +reg = <0>;
> > +spi-max-frequency = <100000>;
> > +};
> > +};
> > +
> > +&timers1 {
> > +/* spare dmas for other usage */
> > +/delete-property/dmas;
> > +/delete-property/dma-names;
> > +pwm {
> > +pinctrl-0 = <&pwm1_pins_a>;
> > +pinctrl-1 = <&pwm1_sleep_pins_a>;
> > +pinctrl-names = "default", "sleep";
> > +status = "okay";
> > +};
> > +timer@0 {
> > +status = "okay";
> > +};
> > +};
> > +
> > +&timers4 {
> > +/delete-property/dmas;
> > +/delete-property/dma-names;
> > +pwm {
> > +pinctrl-0 = <&pwm4_pins_b>;
> > +pinctrl-1 = <&pwm4_sleep_pins_b>;
> > +pinctrl-names = "default", "sleep";
> > +status = "okay";
> > +};
> > +timer@3 {
> > +status = "okay";
> > +};
> > +};
> > +
> > +&timers5 {
> > +/delete-property/dmas;
> > +/delete-property/dma-names;
> > +pwm {
> > +pinctrl-0 = <&pwm5_pins_a>;
> > +pinctrl-1 = <&pwm5_sleep_pins_a>;
> > +pinctrl-names = "default", "sleep";
> > +status = "okay";
> > +};
> > +timer@4 {
> > +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";
> > +};
> > +
> > +&usart2 {
> > +pinctrl-names = "default", "sleep";
> > +pinctrl-0 = <&usart2_pins_a>;
> > +pinctrl-1 = <&usart2_sleep_pins_a>;
> > +status = "okay";
> > +};
> > +
> > +&usart3 {
> > +pinctrl-names = "default", "sleep", "idle";
> > +pinctrl-0 = <&usart3_pins_a>;
> > +pinctrl-1 = <&usart3_sleep_pins_a>;
> > +pinctrl-2 = <&usart3_idle_pins_a>;
> > +status = "okay";
> > +};
> > +
> > +&usbh_ehci {
> > +phys = <&usbphyc_port0>;
> > +phy-names = "usb";
> > +status = "okay";
> > +};
> > +
> > +&usbh_ohci {
> > +phys = <&usbphyc_port0>;
> > +phy-names = "usb";
> > +status = "okay";
> > +};
> > +
> > +&usbotg_hs {
> > +dr_mode = "peripheral";
> > +pinctrl-names = "default";
> > +pinctrl-0 = <&usbotg_hs_pins_a>;
> > +phy-names = "usb2-phy";
> > +phys = <&usbphyc_port1 0>;
> > +vbus-supply = <&vbus_otg>;
> > +status = "okay";
> > +};
> > +
> > +&usbphyc {
> > +status = "okay";
> > +};
> > +
> > +&usbphyc_port0 {
> > +phy-supply = <&vdd_usb>;
> > +};
> > +
> > +&usbphyc_port1 {
> > +phy-supply = <&vdd_usb>;
> > +};
> > +
> > +&vrefbuf {
> > +regulator-min-microvolt = <2500000>;
> > +regulator-max-microvolt = <2500000>;
> > +vdda-supply = <&vdd>;
> > +status = "okay";
> > +};
> > +
> >

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