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Date: Wed, 16 Nov 2022 16:51:57 +0530
From: Vignesh Raghavendra <vigneshr@...com>
To: Wadim Egorov <w.egorov@...tec.de>,
<linux-arm-kernel@...ts.infradead.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <upstream@...tec.de>, <nm@...com>, <kristo@...nel.org>,
<robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>
Subject: Re: [PATCH v2 2/2] arm64: dts: ti: Add support for
phyBOARD-Electra-AM642
Hi,
Few comments
On 08/11/22 11:20 pm, Wadim Egorov wrote:
> Add basic support for phyCORE-AM64x SoM & phyBOARD-Electra-AM642 CB.
>
> The phyCORE-AM64x [1] is a SoM (System on Module) featuring TI's AM64x SoC.
> It can be used in combination with different carrier boards.
> This module can come with different sizes and models for
> DDR, eMMC, SPI NOR Flash and various SoCs from the AM64x family.
>
> A development Kit, called phyBOARD-Electra [2] is used as a carrier board
> reference design around the AM64x SoM.
>
> Supported features:
> * Debug UART
> * Heartbeat LED
> * GPIO buttons & LEDs
> * SPI NOR flash
> * SPI TPM Chip
> * eMMC
> * CAN
> * Ethernet
> * Micro SD card
> * I2C EEPROM
> * I2C RTC
> * I2C LED Dimmer
> * USB
>
> For more details, see:
>
> [1] Product page SoM: https://www.phytec.com/product/phycore-am64x
> [2] Product page CB: https://www.phytec.com/product/phyboard-am64x
>
> Signed-off-by: Wadim Egorov <w.egorov@...tec.de>
> ---
> v2:
> - Update commit message
> - Add links to product pages for SoM & CB
> - Drop "fixed" from regulator node names
> - Use generic node names for pmic, tpm, leds & keys
> - Update compatible of som.dtsi
> - Remove not needed node labels for pmic, tpm
> - Remove not needed R5 core mailbox & reserved memory definitions
> This is use case specific and should not be defined in the som.dtsi
> - Provide aliases for used devices by SoM & CB
> - Fixed led definition: Provide proper default-trigger, function & color
> - Renamed rtc label to i2c_som_rtc
> ---
> arch/arm64/boot/dts/ti/Makefile | 1 +
> .../boot/dts/ti/k3-am64-phycore-som.dtsi | 286 ++++++++++++++++
> .../dts/ti/k3-am642-phyboard-electra-rdk.dts | 321 ++++++++++++++++++
> 3 files changed, 608 insertions(+)
> create mode 100644 arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> create mode 100644 arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dts
>
> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
> index 4555a5be2257..79331f16cd4b 100644
> --- a/arch/arm64/boot/dts/ti/Makefile
> +++ b/arch/arm64/boot/dts/ti/Makefile
> @@ -20,6 +20,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb
> dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
>
> dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
> +dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
> dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
>
> dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> new file mode 100644
> index 000000000000..86e6b87b826a
> --- /dev/null
> +++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
> @@ -0,0 +1,286 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2021 PHYTEC America, LLC - https://www.phytec.com
> + * Author: Matt McKee <mmckee@...tec.com>
> + *
> + * Copyright (C) 2022 PHYTEC Messtechnik GmbH
> + * Author: Wadim Egorov <w.egorov@...tec.de>
> + *
> + * Product homepage:
> + * https://www.phytec.com/product/phycore-am64x
> + */
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +#include <dt-bindings/net/ti-dp83867.h>
> +
> +/ {
> + model = "PHYTEC phyCORE-AM64x";
> + compatible = "phytec,am64-phycore-som", "ti,am642";
> +
> + aliases {
> + ethernet0 = &cpsw_port1;
> + mmc0 = &sdhci0;
> + rtc0 = &i2c_som_rtc;
> + };
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + secure_ddr: optee@...00000 {
> + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
> + alignment = <0x1000>;
> + no-map;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> +
> + led-0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&leds_pins_default>;
> + color = <LED_COLOR_ID_GREEN>;
> + gpios = <&main_gpio0 12 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + function = LED_FUNCTION_HEARTBEAT;
> + };
> + };
> +
> + vcc_5v0_som: vcc-5v0-som {
Please use generic node names where specific in DT spec [0]
[0] https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.4-rc1 2.2.2 Generic Names Recommendation
This should be
regulator-<xyz> {};
> + /* VIN / VCC_5V0_SOM */
> + compatible = "regulator-fixed";
> + regulator-name = "VCC_5V0_SOM";
> + regulator-min-microvolt = <5000000>;
> + regulator-max-microvolt = <5000000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +};
Few nodes dont really have YAML schemas to validate against:
+arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dtb:0:0: /bus@...00/i2c@...00000/pmic@61: failed to match any schema with compatible: ['ti,lp8733']
+arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dtb:0:0: /bus@...00/i2c@...10000/leds@62: failed to match any schema with compatible: ['nxp,pca9533']
+arch/arm64/boot/dts/ti/k3-am642-phyboard-electra-rdk.dtb:0:0: /bus@...00/spi@...00000/tpm@1: failed to match any schema with compatible: ['infineon,slb9670']
Rest looks good to me.
[...]
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