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Message-ID: <f9cd6015c47d390eef9c689d2cb4fcd301c4d123.camel@codeconstruct.com.au>
Date: Wed, 03 Sep 2025 16:37:23 +0930
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: Donald Shannon <donalds@...dia.com>, robh@...nel.org,
krzk+dt@...nel.org, conor+dt@...nel.org, Andrew Lunn <andrew@...n.ch>
Cc: joel@....id.au, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org,
linux-kernel@...r.kernel.org, openbmc@...ts.ozlabs.org, etanous@...dia.com
Subject: Re: [PATCH v2 2/2] ARM: dts: aspeed: Add NVIDIA VR144NVL board
Hi Donald,
On Fri, 2025-08-22 at 13:38 -0700, Donald Shannon wrote:
> This is an Aspeed AST2600 based BMC board for the NVIDIA VR144NVL
> Platform.
>
> Reference to Ast2600 SOC [1].
> Reference to DC-SCM Spec [2].
>
> Link: https://www.aspeedtech.com/server_ast2600/ [1]
> Link: https://www.opencompute.org/w/index.php?title=Server/MHS/DC-SCM-Specs-and-Designs [2]
>
> Signed-off-by: Donald Shannon <donalds@...dia.com>
> ---
> arch/arm/boot/dts/aspeed/Makefile | 1 +
> .../dts/aspeed/aspeed-bmc-nvidia-vr144nvl.dts | 779 ++++++++++++++++++
> 2 files changed, 780 insertions(+)
> create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr144nvl.dts
>
> diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
> index 8062c685f7e8..b479824c434b 100644
> --- a/arch/arm/boot/dts/aspeed/Makefile
> +++ b/arch/arm/boot/dts/aspeed/Makefile
> @@ -55,6 +55,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
> aspeed-bmc-lenovo-hr855xg2.dtb \
> aspeed-bmc-microsoft-olympus.dtb \
> aspeed-bmc-nvidia-gb200nvl-bmc.dtb \
> + aspeed-bmc-nvidia-vr144nvl.dtb \
> aspeed-bmc-opp-lanyang.dtb \
> aspeed-bmc-opp-mowgli.dtb \
> aspeed-bmc-opp-nicole.dtb \
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr144nvl.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr144nvl.dts
> new file mode 100644
> index 000000000000..5984984b5109
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-vr144nvl.dts
> @@ -0,0 +1,779 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/dts-v1/;
> +
> +#include "aspeed-g6.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/ {
> + model = "AST2600 VR144NVL BMC";
> + compatible = "nvidia,vr144nvl-bmc", "aspeed,ast2600";
> +
> + aliases {
> + serial2 = &uart3;
> + serial4 = &uart5;
> + i2c16 = &c0uphy0;
> + i2c17 = &c0uphy2;
> + i2c24 = &c1uphy0;
> + i2c25 = &c1uphy2;
> + i2c32 = &i2c_usb_hub;
> + i2c33 = &i2c_tpm;
> + i2c34 = &i2c_dp;
> + i2c35 = &i2c_rtc;
> + };
> +
> + buttons {
> + compatible = "gpio-keys";
> + button-power {
> + label = "power_btn";
> + linux,code = <KEY_POWER>;
> + gpios = <&exp7 9 GPIO_ACTIVE_LOW>;
> + };
> + button-uid {
> + label = "uid_btn";
> + linux,code = <KEY_FN_1>;
> + gpios = <&exp7 11 GPIO_ACTIVE_LOW>;
> + };
> + };
> +
> + chosen {
> + stdout-path = &uart5;
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + hb-led {
> + gpios = <&gpio0 127 GPIO_ACTIVE_LOW>;
> + function = LED_FUNCTION_HEARTBEAT;
> + color = <LED_COLOR_ID_GREEN>;
> + label = "bmc-hbled";
> + linux,default-trigger = "heartbeat";
> + default-state = "on";
> + retain-state-suspended;
> + retain-state-shutdown;
> + };
> + pwr-led {
> + gpios = <&exp7 8 GPIO_ACTIVE_LOW>;
> + function = LED_FUNCTION_POWER;
> + color = <LED_COLOR_ID_WHITE>;
> + label = "pwr-led";
> + linux,default-trigger = "default-on";
> + default-state = "on";
> + retain-state-suspended;
> + retain-state-shutdown;
> + };
> + uid-led {
> + gpios = <&exp7 10 GPIO_ACTIVE_LOW>;
> + function = LED_FUNCTION_INDICATOR;
> + color = <LED_COLOR_ID_BLUE>;
> + label = "uid-led";
> + default-state = "off";
> + retain-state-suspended;
> + retain-state-shutdown;
> + };
> + fault-led {
> + gpios = <&exp7 12 GPIO_ACTIVE_LOW>;
> + function = LED_FUNCTION_PANIC;
> + color = <LED_COLOR_ID_WHITE>;
> + label = "fault-led";
> + default-state = "off";
> + retain-state-suspended;
> + retain-state-shutdown;
> + panic-indicator;
> + };
> + warn-led {
> + gpios = <&exp7 15 GPIO_ACTIVE_LOW>;
> + function = LED_FUNCTION_PANIC;
> + color = <LED_COLOR_ID_RED>;
> + label = "warn-led";
> + default-state = "off";
> + retain-state-suspended;
> + retain-state-shutdown;
> + };
To be consistent with my request on your other devicetree series, can
you please order nodes that either have no unit address or reference a
label alphabetically, in line with the DTS style guide?
> + };
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x80000000 0x80000000>;
> + };
> +
> + reg_3v3_stby: regulator-3v3-standby {
> + compatible = "regulator-fixed";
> + regulator-name = "3v3-standby";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + gpio = <&gpio0 ASPEED_GPIO(M, 3) GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + regulator-always-on;
> + };
> +
> + reserved-memory {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + vga_memory: framebuffer@...00000 {
> + no-map;
> + reg = <0x9f000000 0x01000000>; /* 16M */
> + };
> +
> + ramoops@...00000 {
> + compatible = "ramoops";
> + reg = <0xa0000000 0x100000>; /* 1MB */
> + record-size = <0x10000>; /* 64KB */
> + max-reason = <2>; /* KMSG_DUMP_OOPS */
> + };
> +
> + gfx_memory: framebuffer {
> + compatible = "shared-dma-pool";
> + reusable;
> + size = <0x01000000>;
> + alignment = <0x01000000>;
> + };
> +
> + video_engine_memory: jpegbuffer {
> + compatible = "shared-dma-pool";
> + reusable;
> + size = <0x02000000>; /* 32M */
> + alignment = <0x01000000>;
> + };
> + };
> +};
> +
> +// Enable Primary flash on FMC for bring up activity
> +&fmc {
> + status = "okay";
> + flash@0 {
> + compatible = "jedec,spi-nor";
> + label = "bmc";
> + spi-max-frequency = <50000000>;
> + status = "okay";
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + u-boot@0 {
> + // 896KB
> + reg = <0x0 0xe0000>;
> + label = "u-boot";
> + };
> +
> + kernel@...000 {
> + // 9MB
> + reg = <0x100000 0x900000>;
> + label = "kernel";
> + };
> +
> + rofs@...000 {
> + // 55292KB (extends to end of 64MB SPI - 4KB)
> + reg = <0xa00000 0x35FF000>;
> + label = "rofs";
> + };
> + };
This isn't using one of the usual OpenBMC flash layouts? Can you add a
comment as to why?
> + };
> +};
> +
> +&spi2 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_spi2_default>;
> + status = "okay";
> + // Data SPI is 64MB in size
> + flash@0 {
> + compatible = "jedec,spi-nor";
> + label = "config";
> + spi-max-frequency = <50000000>;
> + status = "okay";
> + partitions {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + u-boot-env@0 {
> + // 256KB
> + reg = <0x0 0x40000>;
> + label = "u-boot-env";
> + };
> +
> + rwfs@...00 {
> + // 16MB
> + reg = <0x40000 0x1000000>;
> + label = "rwfs";
> + };
> +
> + log@...0000 {
> + // 40MB
> + reg = <0x1040000 0x2800000>;
> + label = "log";
> + };
> + };
> + };
> +};
> +
> +&mdio0 {
> + status = "okay";
> + ethphy0: ethernet-phy@0 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <0>;
> + };
> +};
> +
> +&mac0 {
> + pinctrl-names = "default";
> + phy-mode = "rgmii-id";
Is this correct, in the context of the query here?
https://lore.kernel.org/all/6a3d7eb4-c091-437f-98f8-2b8577e539a7@lunn.ch/
If not, please drop the node from the patch until the MAC driver is
fixed with respect to the RGMII delays.
Andrew
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