linux-kernel - Re: [PATCH v3 1/2] ARM: dts: aspeed: Add device tree for Nvidia's GB200NVL BMC

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Message-ID: <5127f2e7-cb38-4103-8799-551fdedd8152@kernel.org>
Date: Fri, 21 Mar 2025 08:44:21 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Willie Thai <wthai@...dia.com>, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, joel@....id.au, andrew@...econstruct.com.au,
 kees@...nel.org, tony.luck@...el.com, gpiccoli@...lia.com,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
 linux-hardening@...r.kernel.org, openbmc@...ts.ozlabs.org
Cc: leohu@...dia.com, tingkaic@...dia.com, dkodihalli@...dia.com,
 Mars Yang <maryang@...dia.com>, Andrew Lunn <andrew@...n.ch>,
 Paul Menzel <pmenzel@...gen.mpg.de>
Subject: Re: [PATCH v3 1/2] ARM: dts: aspeed: Add device tree for Nvidia's
 GB200NVL BMC

On 20/03/2025 17:46, Willie Thai wrote:
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		led-0 {
> +			label = "uid_led";
> +			gpios = <&sgpiom0 27 GPIO_ACTIVE_LOW>;
> +		};
> +		led-1 {
> +			label = "fault_led";
> +			gpios = <&sgpiom0 29 GPIO_ACTIVE_LOW>;
> +		};
> +		led-2 {
> +			label = "power_led";
> +			gpios = <&sgpiom0 31 GPIO_ACTIVE_LOW>;
> +		};
> +

You still have stray blank lines in few places.

> +	};
> +
> +	buttons {
> +		button-power {
> +			label = "power-btn";
> +			gpio = <&sgpiom0 156 GPIO_ACTIVE_LOW>;
> +		};
> +		button-uid {
> +			label = "uid-btn";
> +			gpio = <&sgpiom0 154 GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +
> +};
> +

...

> +/*
> + * Enable USB port A as device (via the virtual hub) to host
> + */
> +&vhub {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	/*
> +	 * Uncomment below line to enable internal EHCI controller
> +	 * Current config uses xHCI Port1
> +	 */

Comment makes no sense.

> +};
> +
> +&video {
> +	status = "okay";
> +	memory-region = <&video_engine_memory>;
> +};
> +

...

> +&gpio0 {
> +	gpio-line-names =
> +		/*A0-A7*/ "", "", "", "", "", "", "", "",
> +		/*B0-B7*/ "", "", "", "", "", "", "", "",
> +		/*C0-C7*/ "SGPIO_I2C_MUX_SEL-O", "", "", "", "", "", "", "",
> +		/*D0-D7*/ "", "", "", "UART1_MUX_SEL-O", "", "FPGA_PEX_RST_L-O", "", "",
> +		/*E0-E7*/ "RTL8221_PHY_RST_L-O", "RTL8211_PHY_INT_L-I",	"", "UART3_MUX_SEL-O",
> +					"", "", "", "SGPIO_BMC_EN-O",
> +		/*F0-F7*/ "", "", "", "", "", "", "", "",
> +		/*G0-G7*/ "", "", "", "", "", "", "", "",
> +		/*H0-H7*/ "", "", "", "", "", "", "", "",
> +		/*I0-I7*/ "", "", "", "", "", "QSPI2_RST_L-O", "GLOBAL_WP_BMC-O", "BMC_DDR4_TEN-O",
> +		/*J0-J7*/ "", "", "", "", "", "", "", "",
> +		/*K0-K7*/ "", "", "", "", "", "", "", "",
> +		/*L0-L7*/ "", "", "", "", "", "", "", "",
> +		/*M0-M7*/ "PCIE_EP_RST_EN-O", "BMC_FRU_WP-O", "HMC_RESET_L-O", "STBY_POWER_EN-O",
> +					"STBY_POWER_PG-I", "PCIE_EP_RST_L-O", "", "",
> +		/*N0-N7*/ "", "", "", "", "", "", "", "",
> +		/*O0-O7*/ "", "", "", "", "", "", "", "",
> +		/*P0-P7*/ "", "", "", "", "", "", "", "",
> +		/*Q0-Q7*/ "", "", "", "", "", "", "", "",
> +		/*R0-R7*/ "", "", "", "", "", "", "", "",
> +		/*S0-S7*/ "", "", "", "", "", "", "", "",
> +		/*T0-T7*/ "", "", "", "", "", "", "", "",
> +		/*U0-U7*/ "", "", "", "", "", "", "", "",
> +		/*V0-V7*/ "AP_EROT_REQ-O", "EROT_AP_GNT-I", "", "","PCB_TEMP_ALERT-I", "","", "",
> +		/*W0-W7*/ "", "", "", "", "", "", "", "",
> +		/*X0-X7*/ "", "", "TPM_MUX_SEL-O", "", "", "", "", "",
> +		/*Y0-Y7*/ "", "", "", "EMMC_RST-O", "","", "", "",
> +		/*Z0-Z7*/ "BMC_READY-O","", "", "", "", "", "", "";
> +};
> +
> +&gpio1 {
> +	/* 36 1.8V GPIOs */
> +	gpio-line-names =
> +		/*A0-A7*/ "", "", "", "", "", "", "", "",
> +		/*B0-B7*/ "", "", "", "", "", "", "IO_EXPANDER_INT_L-I","",
> +		/*C0-C7*/ "", "", "", "", "", "", "", "",
> +		/*D0-D7*/ "", "", "", "", "", "", "SPI_HOST_TPM_RST_L-O", "SPI_BMC_FPGA_INT_L-I",
> +		/*E0-E7*/ "", "", "", "", "", "", "", "";
> +};
> +
> +// EMMC group that excludes WP pin
> +&pinctrl {
> +	pinctrl_emmcg5_default: emmcg5_default {

No underscores in node names.

> +		function = "EMMC";
> +		groups = "EMMCG5";
> +	};
> +};


Best regards,
Krzysztof