linux-kernel - Re: [PATCH v2 2/2] arm64: dts: freescale: imx95: Add support for i.MX95 15x15 FRDM board

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Message-ID: <3e449b21-5ffb-4a6a-b0c4-e9f381334883@gmail.com>
Date: Thu, 18 Dec 2025 08:26:34 -0800
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Lei Xu <lei.xu@....com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 justin.jiang@....com, qijian.guo@....com
Subject: Re: [PATCH v2 2/2] arm64: dts: freescale: imx95: Add support for
 i.MX95 15x15 FRDM board


On 12/17/2025 9:56 PM, Lei Xu wrote:
> The i.MX95 15x15 FRDM board is a compact and cost-effective development
> platform based on the i.MX95 applications processor.
>
> Add device tree support for this board, including:
>  - LPUART1 and LPUART5
>  - NETC
>  - USB
>  - PCIe
>  - uSDHC1, uSDHC2 and uSDHC3
>  - FlexCAN2 and FlexCAN5
>  - LPI2C2, LPI2C3, LPI2C4 and their child nodes
>  - Watchdog3
>
> Signed-off-by: Lei Xu <lei.xu@....com>
> ---
> Changes in v2:
> - Switched from 'xceiver-supply' to CAN PHY nodes using 'phys'.
> - Added CAN PHY nodes for flexcan2/5 with shared silent-gpio, removed reg_can_stby.
> - Updated MSI/IOMMU mapping comment to match the i.MX95 15x15 FRDM board.
> ---
>  arch/arm64/boot/dts/freescale/Makefile             |   1 +
>  arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts | 963 +++++++++++++++++++++
>  2 files changed, 964 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index f30d3fd724d0..71308d19d35e 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -400,6 +400,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-tqma9352-mba93xxla.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx93-var-som-symphony.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx943-evk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-frdm.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-sof.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx95-toradex-smarc-dev.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts
> new file mode 100644
> index 000000000000..414ebdacc3cb
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm.dts
> @@ -0,0 +1,963 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright 2025 NXP
> + */
> +
> +/dts-v1/;
> +
> +#include <dt-bindings/leds/common.h>
> +#include <dt-bindings/phy/phy-imx8-pcie.h>
> +#include <dt-bindings/pwm/pwm.h>
> +#include <dt-bindings/usb/pd.h>
> +#include "imx95.dtsi"
> +
> +#define BRD_SM_CTRL_SD3_WAKE		0x8000	/*!< PCAL6408A-0 */
> +#define BRD_SM_CTRL_PCIE1_WAKE		0x8001	/*!< PCAL6408A-4 */
> +#define BRD_SM_CTRL_BT_WAKE		0x8002	/*!< PCAL6408A-5 */
> +#define BRD_SM_CTRL_PCIE2_WAKE		0x8003	/*!< PCAL6408A-6 */
> +#define BRD_SM_CTRL_BUTTON		0x8004	/*!< PCAL6408A-7 */
> +
> +/ {
> +	compatible = "fsl,imx95-15x15-frdm", "fsl,imx95";
> +	model = "NXP i.MX95 15X15 FRDM board";
> +
> +	aliases {
> +		ethernet0 = &enetc_port0;
> +		ethernet1 = &enetc_port1;
> +		gpio0 = &gpio1;
> +		gpio1 = &gpio2;
> +		gpio2 = &gpio3;
> +		gpio3 = &gpio4;
> +		gpio4 = &gpio5;
> +		i2c0 = &lpi2c1;
> +		i2c1 = &lpi2c2;
> +		i2c2 = &lpi2c3;
> +		i2c3 = &lpi2c4;
> +		i2c4 = &lpi2c5;
> +		i2c5 = &lpi2c6;
> +		i2c6 = &lpi2c7;
> +		i2c7 = &lpi2c8;
> +		mmc0 = &usdhc1;
> +		mmc1 = &usdhc2;
> +		mmc2 = &usdhc3;
> +		serial0 = &lpuart1;
> +		serial4 = &lpuart5;
> +	};
> +
> +	


(snip)


> +
> +	sound-micfil {
> +		compatible = "fsl,imx-audio-card";
> +		model = "micfil-audio";
> +
> +		pri-dai-link {
> +			link-name = "micfil hifi";
> +			format = "i2s";
> +
> +			cpu {
> +				sound-dai = <&micfil>;
> +			};


please add a space in between the definitions of the cpu and codec nodes. With that:


Reviewed-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>


> +			codec {
> +				sound-dai = <&dmic>;
> +			};
> +		};
> +	};
> +
> +	usdhc3_pwrseq: usdhc3-pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		reset-gpios = <&pcal6524 8 GPIO_ACTIVE_LOW>;
> +	};