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Date: Thu, 8 Sep 2022 13:04:18 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Hari Prasath <Hari.PrasathGE@...rochip.com>,
nicolas.ferre@...rochip.com, claudiu.beznea@...rochip.com,
davem@...emloft.net, krzysztof.kozlowski+dt@...aro.org,
alexandre.belloni@...tlin.com, arnd@...db.de, olof@...om.net,
soc@...nel.org, manikandan.m@...rochip.com, michael@...le.cc,
horatiu.vultur@...rochip.com, kavyasree.kotagiri@...rochip.com,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, durai.manickamkr@...rochip.com
Subject: Re: [linux][PATCH 6/6] ARM: dts: at91: sam9x60_curiosity: Add device
tree for sam9x60_curiosity board
On 07/09/2022 11:20, Hari Prasath wrote:
> From: Manikandan M <manikandan.m@...rochip.com>
>
> Add device tree file for sam9x60_curiosity board.
>
> Signed-off-by: Durai Manickam KR <durai.manickamkr@...rochip.com>
> Signed-off-by: Manikandan M <manikandan.m@...rochip.com>
> Signed-off-by: Hari Prasath <Hari.PrasathGE@...rochip.com>
> ---
> .../devicetree/bindings/arm/atmel-at91.yaml | 6 +
Bindings are separate patches.
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/at91-sam9x60_curiosity.dts | 532 ++++++++++++++++++
> 3 files changed, 539 insertions(+)
> create mode 100644 arch/arm/boot/dts/at91-sam9x60_curiosity.dts
>
> diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> index 2b7848bb7769..fae3a3090fbd 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> +++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
> @@ -97,6 +97,12 @@ properties:
> - const: microchip,sam9x60
> - const: atmel,at91sam9
>
> + - description: SAM9X60 Curiosity board
> + items:
> + - const: microchip,sam9x60-curiosity
> + - const: microchip,sam9x60
> + - const: atmel,at91sam9
This should be rather together with previous entry as an enum.
> +
> - description: Nattis v2 board with Natte v2 power board
> items:
> - const: axentia,nattis-2
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 595e870750cd..cd60cda5d187 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -51,6 +51,7 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \
> at91sam9x25ek.dtb \
> at91sam9x35ek.dtb
> dtb-$(CONFIG_SOC_SAM9X60) += \
> + at91-sam9x60_curiosity.dtb \
> at91-sam9x60ek.dtb
> dtb-$(CONFIG_SOC_SAM_V7) += \
> at91-kizbox2-2.dtb \
> diff --git a/arch/arm/boot/dts/at91-sam9x60_curiosity.dts b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> new file mode 100644
> index 000000000000..75e6727b5e3a
> --- /dev/null
> +++ b/arch/arm/boot/dts/at91-sam9x60_curiosity.dts
> @@ -0,0 +1,532 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * at91-sam9x60_curiosity.dts - Device Tree file for Microchip SAM9X60 CURIOSITY board
> + *
> + * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries
> + *
> + * Author: Manikandan M <manikandan.m@...rochip.com>
> + */
> +/dts-v1/;
> +#include "sam9x60.dtsi"
> +#include <dt-bindings/input/input.h>
> +
> +/ {
> + model = "Microchip SAM9X60 CURIOSITY";
> + compatible = "microchip,sam9x60-curiosity", "microchip,sam9x60", "atmel,at91sam9";
> +
> + aliases {
> + i2c0 = &i2c0;
> + i2c1 = &i2c6;
> + serial2 = &uart7;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + memory@...00000 {
> + reg = <0x20000000 0x8000000>;
> + };
> +
> + clocks {
> + slow_xtal {
No underscores in node names... If you override nodes, do it via label.
> + clock-frequency = <32768>;
> + };
> +
> + main_xtal {
> + clock-frequency = <24000000>;
> + };
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_key_gpio_default>;
> + status = "okay";
Okay is by default.
> +
> + button-user {
> + label = "PB_USER";
> + gpios = <&pioA 29 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_PROG1>;
> + wakeup-source;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_gpio_leds>;
> + status = "okay";
Ditto
> +
> + red {
Does not look like you tested the DTS against bindings. Please run `make
dtbs_check` (see Documentation/devicetree/bindings/writing-schema.rst
for instructions).
You need to fix all warnings in your DTS.
> + label = "red";
> + gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
> + };
> +
> + green {
> + label = "green";
> + gpios = <&pioD 19 GPIO_ACTIVE_HIGH>;
> + };
> +
> + blue {
> + label = "blue";
> + gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + regulators: regulators {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + vdd_1v8: fixed-regulator-vdd_1v8@0 {
No underscores in node names. No prefix "fixed-". This is just a regulator.
> + compatible = "regulator-fixed";
> + regulator-name = "VDD_1V8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-always-on;
> + status = "okay";
Really?
> + };
> +
> + vdd_1v15: fixed-regulator-vdd_1v15@1 {
> + compatible = "regulator-fixed";
> + regulator-name = "VDD_1V15";
> + regulator-min-microvolt = <1150000>;
> + regulator-max-microvolt = <1150000>;
> + regulator-always-on;
> + status = "okay";
> + };
> +
> + vdd1_3v3: fixed-regulator-vdd1_3v3@2 {
> + compatible = "regulator-fixed";
> + regulator-name = "VDD1_3V3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + status = "okay";
> + };
> + };
> +};
> +
> +&adc {
> + vddana-supply = <&vdd1_3v3>;
> + vref-supply = <&vdd1_3v3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
> + status = "okay";
> +};
> +
> +&can0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can0_rx_tx>;
> + status = "disabled"; /* Conflict with dbgu. */
> +};
> +
> +&can1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can1_rx_tx>;
> + status = "okay";
> +};
> +
> +&dbgu {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_dbgu>;
> + status = "okay"; /* Conflict with can0. */
> +};
> +
> +&ebi {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_ebi_addr_nand &pinctrl_ebi_data_0_7>;
> + status = "okay";
> +
> + nand_controller: nand-controller {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_nand_oe_we &pinctrl_nand_cs &pinctrl_nand_rb>;
> + status = "okay";
> +
> + nand@3 {
> + reg = <0x3 0x0 0x800000>;
> + rb-gpios = <&pioD 5 GPIO_ACTIVE_HIGH>;
> + cs-gpios = <&pioD 4 GPIO_ACTIVE_HIGH>;
> + nand-bus-width = <8>;
> + nand-ecc-mode = "hw";
> + nand-ecc-strength = <8>;
> + nand-ecc-step-size = <512>;
> + nand-on-flash-bbt;
> + label = "atmel_nand";
> +
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + at91bootstrap@0 {
> + label = "at91bootstrap";
> + reg = <0x0 0x40000>;
> + };
> +
> + uboot@...00 {
> + label = "u-boot";
> + reg = <0x40000 0xc0000>;
> + };
> +
> + ubootenvred@...000 {
> + label = "U-Boot Env Redundant";
> + reg = <0x100000 0x40000>;
> + };
> +
> + ubootenv@...000 {
> + label = "U-Boot Env";
> + reg = <0x140000 0x40000>;
> + };
> +
> + dtb@...000 {
> + label = "device tree";
> + reg = <0x180000 0x80000>;
> + };
> +
> + kernel@...000 {
> + label = "kernel";
> + reg = <0x200000 0x600000>;
> + };
> +
> + rootfs@...000 {
> + label = "rootfs";
> + reg = <0x800000 0x1f800000>;
> + };
> + };
> + };
> + };
> +};
> +
> +&flx0 {
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
> + status = "okay";
> +
> + i2c0: i2c@600 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flx0_default>;
> + i2c-analog-filter;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <35>;
> + status = "okay";
??
> +
> + eeprom@53 {
> + compatible = "atmel,24c02";
> + reg = <0x53>;
> + pagesize = <16>;
> + status = "okay";
> + };
> + };
> +};
> +
> +&flx6 {
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
> + status = "okay";
> +
> + i2c6: i2c@600 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flx6_default>;
> + i2c-analog-filter;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <35>;
> + status = "disabled";
> + };
> +};
> +
> +&flx7 {
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
> + status = "okay";
> +
> + uart7: serial@200 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_flx7_default>;
> + status = "okay";
> + };
> +};
> +
> +&macb0 {
> + phy-mode = "rmii";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_macb0_rmii>;
> + status = "okay";
> +
> + ethernet-phy@0 {
> + reg = <0x0>;
> + };
> +};
> +
> +&pinctrl {
> + adc {
> + pinctrl_adc_default: adc_default {
No underscores in node names.
Best regards,
Krzysztof
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