[PATCH v4 0/3] Add device tree for Nvidia's GB200NVL BMC

[PATCH v4 0/3] Add device tree for Nvidia's GB200NVL BMC

[Willie Thai]

The GB200NVL BMC is an Aspeed Ast2600 based BMC
for Nvidia Blackwell GB200NVL platform.
Reference to Ast2600 SOC [1].
Reference to Blackwell GB200NVL Platform [2].

Co-developed-by: Mars Yang <maryang@nvidia.com>
Signed-off-by: Mars Yang <maryang@nvidia.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Rob Herring <robh@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://www.aspeedtech.com/server_ast2600/ [1]
Link: https://nvdam.widen.net/s/wwnsxrhm2w/blackwell-datasheet-3384703 [2]
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
Changes v1 -> v2:
  - Fix the SOB name [Krzysztof]
  - Fix warnings from scripts/checkpatch.pl run [Krzysztof]
  - Fix DTS coding style [Krzysztof]
  - Move pinctrl override to the bottom [Krzysztof]
  - Drop bootargs [Krzysztof]
  - Follow DTS coding style and change naming for leds node [Krzysztof]
  - Change flash 0 status property [Krzysztof]
  - Change the phy-mode to rgmii [Andrew]
  - Remove the max-speed in mac0 [Andrew]
  - Put gpio line name in one line per group of 8 gpios, but keep some b/c they can exceed length limit [Paul]
Changes v2 -> v3:
  - Fix missing new line [Krzysztof]
  - Fix missing binding define, adding it in the patch no.1 of this patch set v3 [Krzysztof, Rob]
  - Fix DTS coding style [Krzysztof]
  - Modify nodes name to generic name for: i2c expander pca9546, gpio expander pca9555, power monitor lm5066i, fan controller max31790 [Krzysztof]
  - Skip mac setting and wait till the delay issue in phy-mode fix from Aspeed SOC vendor side [Andrew]
  - Remove i2c-scl-clk-low-timeout-us which is Apseed proprietary property [Mars]
Changes v3 -> v4:
  - Order binding patch first in the patch set [Andrew Jeffery]
  - Make the commit message more concise [Krzysztof]
  - Remove stray blank lines [Krzysztof]
  - Remove unnecessary comments [Krzysztof]
  - Remove underscore, repalce by dash symbol in node name [Krzysztof]
  - Remove disable-master property in i2c as it is downstream added property [Rob, Andrew Jeffery]
  - Remove #address-cells, #size-cells in nxp,pca9555 and maxim,max31790 as they are no longer defined [Rob, Andrew Jeffery]
---

Willie Thai (3):
  dt-bindings: arm: aspeed: add Nvidia's GB200NVL BMC
  dt-bindings: pinctrl: aspeed,ast2600-pinctrl
  ARM: dts: aspeed: Add device tree for Nvidia's GB200NVL BMC

 .../bindings/arm/aspeed/aspeed.yaml           |    1 +
 .../pinctrl/aspeed,ast2600-pinctrl.yaml       |    1 +
 arch/arm/boot/dts/aspeed/Makefile             |    1 +
 .../aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 1149 +++++++++++++++++
 4 files changed, 1152 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts

-- 
2.25.1

[PATCH v4 1/3] dt-bindings: arm: aspeed: add Nvidia's GB200NVL BMC

[Willie Thai]

Add Nvidia's  GB200NVL BMC board compatible.

Co-developed-by: Mars Yang <maryang@nvidia.com>
Signed-off-by: Mars Yang <maryang@nvidia.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
Changes v3 -> v4:
  - Make the commit message more concise [Krzysztof]
---
---
 Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
index 01333ac111fb..a3736f134130 100644
--- a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
+++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
@@ -98,6 +98,7 @@ properties:
               - inventec,starscream-bmc
               - inventec,transformer-bmc
               - jabil,rbp-bmc
+              - nvidia,gb200nvl-bmc
               - qcom,dc-scm-v1-bmc
               - quanta,s6q-bmc
               - ufispace,ncplite-bmc
-- 
2.25.1

Re: [PATCH v4 1/3] dt-bindings: arm: aspeed: add Nvidia's GB200NVL BMC

[Krzysztof Kozlowski]

On 24/03/2025 18:59, Willie Thai wrote:
> Add Nvidia's  GB200NVL BMC board compatible.
> 
> Co-developed-by: Mars Yang <maryang@nvidia.com>
> Signed-off-by: Mars Yang <maryang@nvidia.com>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Signed-off-by: Willie Thai <wthai@nvidia.com>
> ---

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

[PATCH v4 2/3] dt-bindings: pinctrl: aspeed,ast2600-pinctrl

[Willie Thai]

Add EMMCG5 enum to compatible list of pinctrl binding for emmc enabling.

Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
 .../devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml      | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
index 80974c46f3ef..cb75e979f5e0 100644
--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
@@ -276,6 +276,7 @@ additionalProperties:
         - BMCINT
         - EMMCG1
         - EMMCG4
+        - EMMCG5
         - EMMCG8
         - ESPI
         - ESPIALT
-- 
2.25.1

Re: [PATCH v4 2/3] dt-bindings: pinctrl: aspeed,ast2600-pinctrl

[Krzysztof Kozlowski]

On 24/03/2025 18:59, Willie Thai wrote:
> Add EMMCG5 enum to compatible list of pinctrl binding for emmc enabling.
> 
> Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
> Signed-off-by: Willie Thai <wthai@nvidia.com>
> ---

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH v4 2/3] dt-bindings: pinctrl: aspeed,ast2600-pinctrl

[Andrew Jeffery]

On Mon, 2025-03-24 at 17:59 +0000, Willie Thai wrote:
> Add EMMCG5 enum to compatible list of pinctrl binding for emmc
> enabling.
> 
> Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
> Signed-off-by: Willie Thai <wthai@nvidia.com>
> ---
>  .../devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml      | 1
> +
>  1 file changed, 1 insertion(+)
> 
> diff --git
> a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> pinctrl.yaml
> b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> pinctrl.yaml
> index 80974c46f3ef..cb75e979f5e0 100644
> --- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> pinctrl.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> pinctrl.yaml
> @@ -276,6 +276,7 @@ additionalProperties:
>          - BMCINT
>          - EMMCG1
>          - EMMCG4
> +        - EMMCG5

What pin configuration does this correspond to for the eMMC controller?
These groups aren't arbitrary, they correspond to the 1, 4 and 8-bit
bus modes.

You may have added this squash a warning, but I suspect the pinctrl
configuration in your devicetree is incorrect.

Andrew

>          - EMMCG8
>          - ESPI
>          - ESPIALT

Re: Re: [PATCH v4 2/3] dt-bindings: pinctrl: aspeed,ast2600-pinctrl

[Willie Thai]

>> Add EMMCG5 enum to compatible list of pinctrl binding for emmc
>> enabling.
>> 
>> Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
>> Signed-off-by: Willie Thai <wthai@nvidia.com>
>> ---
>>  .../devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml      | 1
>> +
>>  1 file changed, 1 insertion(+)
>> 
>> diff --git
>> a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
>> pinctrl.yaml
>> b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
>> pinctrl.yaml
>> index 80974c46f3ef..cb75e979f5e0 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
>> pinctrl.yaml
>> +++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
>> pinctrl.yaml
>> @@ -276,6 +276,7 @@ additionalProperties:
>>          - BMCINT
>>          - EMMCG1
>>          - EMMCG4
>> +        - EMMCG5
> 
> What pin configuration does this correspond to for the eMMC controller?
> These groups aren't arbitrary, they correspond to the 1, 4 and 8-bit
> bus modes.
> 
> You may have added this squash a warning, but I suspect the pinctrl
> configuration in your devicetree is incorrect.
> 
> Andrew
> 

Thanks for your feedback !
We want to exclude AC5 pin in the default EMMCG4 pin group, because that pin is used for other purpose.
We define a new group called EMMCG5 as:
GROUP_DECL(EMMCG5, AB4, AA4, AC4, AA5, Y5, AB5, AB6)
The bus mode is still 4-bit mode.
Could you please advise if we can use the name "EMMCG5" ?

>>          - EMMCG8
>>          - ESPI

Re: Re: [PATCH v4 2/3] dt-bindings: pinctrl: aspeed,ast2600-pinctrl

[Andrew Jeffery]

Hi Willie,

On Mon, 2025-03-31 at 17:18 +0000, Willie Thai wrote:
> > > Add EMMCG5 enum to compatible list of pinctrl binding for emmc
> > > enabling.
> > > 
> > > Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
> > > Signed-off-by: Willie Thai <wthai@nvidia.com>
> > > ---
> > >  .../devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml     
> > > | 1
> > > +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git
> > > a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> > > pinctrl.yaml
> > > b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> > > pinctrl.yaml
> > > index 80974c46f3ef..cb75e979f5e0 100644
> > > --- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> > > pinctrl.yaml
> > > +++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-
> > > pinctrl.yaml
> > > @@ -276,6 +276,7 @@ additionalProperties:
> > >          - BMCINT
> > >          - EMMCG1
> > >          - EMMCG4
> > > +        - EMMCG5
> > 
> > What pin configuration does this correspond to for the eMMC
> > controller?
> > These groups aren't arbitrary, they correspond to the 1, 4 and 8-
> > bit
> > bus modes.
> > 
> > You may have added this squash a warning, but I suspect the pinctrl
> > configuration in your devicetree is incorrect.
> > 
> > Andrew
> > 
> 
> Thanks for your feedback !
> We want to exclude AC5 pin in the default EMMCG4 pin group, because
> that pin is used for other purpose.

Okay, sure.

> We define a new group called EMMCG5 as:
> GROUP_DECL(EMMCG5, AB4, AA4, AC4, AA5, Y5, AB5, AB6)
> The bus mode is still 4-bit mode.
> Could you please advise if we can use the name "EMMCG5" ?

Why is EMMCG5 an intuitive name? It doesn't make sense to me for what
you're trying to achieve. It's probably better if we rethink the
functions and groups to make them a little more fine-grained, perhaps

- EMMCDAT1
- EMMCDAT4
- EMMCDAT8
- EMMCWP
- EMMCCD

and then you request what's appropriate, rather than create groups that
exclude a specific function/pin (such as card detect).

Maybe you should drop the eMMC node from your devicetree for now, and
add it back once we've sorted out the pinctrl side of things in a
separate series.

Andrew

[PATCH v4 3/3] ARM: dts: aspeed: Add device tree for Nvidia's GB200NVL BMC

[Willie Thai]

The GB200NVL BMC is an Aspeed Ast2600 based BMC
for Nvidia Blackwell GB200NVL platform.
Reference to Ast2600 SOC [1].
Reference to Blackwell GB200NVL Platform [2].

Co-developed-by: Mars Yang <maryang@nvidia.com>
Signed-off-by: Mars Yang <maryang@nvidia.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: Andrew Jeffery <andrew@codeconstruct.com.au>
Link: https://www.aspeedtech.com/server_ast2600/ [1]
Link: https://nvdam.widen.net/s/wwnsxrhm2w/blackwell-datasheet-3384703 [2]
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
Changes v3 -> v4:
  - Remove stray blank lines [Krzysztof]
  - Remove unnecessary comments [Krzysztof]
  - Remove underscore, repalce by dash symbol in node name [Krzysztof]
  - Remove disable-master property in i2c as it is downstream added property [Rob, Andrew Jeffery]
  - Remove #address-cells, #size-cells in nxp,pca9555 and maxim,max31790 as they are no longer defined [Rob, Andrew Jeffery]
---
---
 arch/arm/boot/dts/aspeed/Makefile             |    1 +
 .../aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 1149 +++++++++++++++++
 2 files changed, 1150 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 2e5f4833a073..20fd357a1ee9 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -50,6 +50,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-lenovo-hr630.dtb \
 	aspeed-bmc-lenovo-hr855xg2.dtb \
 	aspeed-bmc-microsoft-olympus.dtb \
+	aspeed-bmc-nvidia-gb200nvl-bmc.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-gb200nvl-bmc.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
new file mode 100644
index 000000000000..a3ce8cbc60b5
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
@@ -0,0 +1,1149 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g6.dtsi"
+#include <dt-bindings/i2c/i2c.h>
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "AST2600 GB200NVL BMC";
+	compatible = "nvidia,gb200nvl-bmc", "aspeed,ast2600";
+
+	aliases {
+		serial2 = &uart3;
+		serial4 = &uart5;
+		i2c16   = &imux16;
+		i2c17   = &imux17;
+		i2c18   = &imux18;
+		i2c19   = &imux19;
+		i2c20   = &imux20;
+		i2c21   = &imux21;
+		i2c22   = &imux22;
+		i2c23   = &imux23;
+		i2c24   = &imux24;
+		i2c25   = &imux25;
+		i2c26   = &imux26;
+		i2c27   = &imux27;
+		i2c28   = &imux28;
+		i2c29   = &imux29;
+		i2c30   = &imux30;
+		i2c31   = &imux31;
+		i2c32   = &imux32;
+		i2c33   = &imux33;
+		i2c34   = &imux34;
+		i2c35   = &imux35;
+		i2c36   = &imux36;
+		i2c37   = &imux37;
+		i2c38   = &imux38;
+		i2c39   = &imux39;
+		i2c40	= &e1si2c0;
+		i2c41	= &e1si2c1;
+		i2c42	= &e1si2c2;
+		i2c43	= &e1si2c3;
+		i2c44	= &e1si2c4;
+		i2c45	= &e1si2c5;
+		i2c46	= &e1si2c6;
+		i2c47	= &e1si2c7;
+		i2c48	= &i2c17mux0;
+		i2c49	= &i2c17mux1;
+		i2c50	= &i2c17mux2;
+		i2c51	= &i2c17mux3;
+		i2c52	= &i2c25mux0;
+		i2c53	= &i2c25mux1;
+		i2c54	= &i2c25mux2;
+		i2c55	= &i2c25mux3;
+		i2c56	= &i2c29mux0;
+		i2c57	= &i2c29mux1;
+		i2c58	= &i2c29mux2;
+		i2c59	= &i2c29mux3;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x80000000 0x80000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		vga_memory: framebuffer@9f000000 {
+			no-map;
+			reg = <0x9f000000 0x01000000>; /* 16M */
+		};
+
+		ramoops@a0000000 {
+			compatible = "ramoops";
+			reg = <0xa0000000 0x100000>; /* 1MB */
+			record-size = <0x10000>; /* 64KB */
+			max-reason = <2>; /* KMSG_DUMP_OOPS */
+		};
+
+		gfx_memory: framebuffer {
+			size = <0x01000000>;
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+
+		video_engine_memory: jpegbuffer {
+			size = <0x02000000>;	/* 32M */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+	};
+
+	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>;
+		};
+	};
+
+	buttons {
+		button-power {
+			label = "power-btn";
+			gpio = <&sgpiom0 156 GPIO_ACTIVE_LOW>;
+		};
+		button-uid {
+			label = "uid-btn";
+			gpio = <&sgpiom0 154 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+// Enable Primary flash on FMC for bring up activity
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		compatible = "jedec,spi-nor";
+		label = "bmc";
+		spi-max-frequency = <50000000>;
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			u-boot@0 {
+				// 896KB
+				reg = <0x0 0xe0000>;
+				label = "u-boot";
+			};
+
+			kernel@100000 {
+				// 9MB
+				reg = <0x100000 0x900000>;
+				label = "kernel";
+			};
+
+			rofs@a00000 {
+				// 55292KB (extends to end of 64MB SPI - 4KB)
+				reg = <0xa00000 0x35FF000>;
+				label = "rofs";
+			};
+		};
+	};
+};
+
+&spi2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi2_default>;
+
+	// Data SPI is 64MB in size
+	flash@0 {
+		status = "okay";
+		label = "config";
+		spi-max-frequency = <50000000>;
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			u-boot-env@0 {
+				// 256KB
+				reg = <0x0 0x40000>;
+				label = "u-boot-env";
+			};
+
+			rwfs@40000 {
+				// 16MB
+				reg = <0x40000 0x1000000>;
+				label = "rwfs";
+			};
+
+			log@1040000 {
+				// 40MB
+				reg = <0x1040000 0x2800000>;
+				label = "log";
+			};
+		};
+	};
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart3 {
+	// Enabling SOL
+	status = "okay";
+};
+
+&uart5 {
+	// BMC Debug Console
+	status = "okay";
+};
+
+&uart_routing {
+	status = "okay";
+};
+
+&mac2 {
+	status = "okay";
+	phy-mode = "rmii";
+	use-ncsi;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii3_default>;
+};
+
+// Enable emmc
+&emmc_controller {
+	status = "okay";
+};
+
+&emmc {
+	non-removable;
+	pinctrl-0 = <&pinctrl_emmcg5_default>;
+	bus-width = <4>;
+	max-frequency = <52000000>;
+	clk-phase-mmc-hs200 = <9>, <225>;
+};
+
+/*
+ * Enable USB port A as device (via the virtual hub) to host
+ */
+&vhub {
+	status = "okay";
+};
+
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
+// USB 2.0 to HMC, on USB Port B
+&ehci1 {
+	status = "okay";
+};
+
+// USB 1.0
+&uhci {
+	status = "okay";
+};
+
+&sgpiom0 {
+	status="okay";
+	ngpios = <128>;
+	gpio-line-names =
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"RUN_POWER_FAULT_L-I","SYS_RST_IN_L-O",
+		"RUN_POWER_PG-I","PWR_BRAKE_L-O",
+		"SYS_RST_OUT_L-I","RUN_POWER_EN-O",
+		"L0L1_RST_REQ_OUT_L-I","SHDN_FORCE_L-O",
+		"L2_RST_REQ_OUT_L-I","SHDN_REQ_L-O",
+		"SHDN_OK_L-I","UID_LED_N-O",
+		"BMC_I2C1_FPGA_ALERT_L-I","SYS_FAULT_LED_N-O",
+		"BMC_I2C0_FPGA_ALERT_L-I","PWR_LED_N-O",
+		"FPGA_RSVD_FFU3-I","",
+		"FPGA_RSVD_FFU2-I","",
+		"FPGA_RSVD_FFU1-I","",
+		"FPGA_RSVD_FFU0-I","BMC_I2C_SSIF_ALERT_L-O",
+		"CPU_BOOT_DONE-I","JTAG_MUX_SELECT-O",
+		"SPI_BMC_FPGA_INT_L-I","RTC_CLR_L-O",
+		"THERM_BB_WARN_L-I","UART_MUX_SEL-O",
+		"THERM_BB_OVERT_L-I","",
+		"CPU0_UPHY3_PRSNT1_L-I","IOBRD0_RUN_POWER_EN-O",
+		"CPU0_UPHY3_PRSNT0_L-I","IOBRD1_RUN_POWER_EN-O",
+		"CPU0_UPHY2_PRSNT1_L-I","FPGA_RSVD_FFU4-O",
+		"CPU0_UPHY2_PRSNT0_L-I","FPGA_RSVD_FFU5-O",
+		"CPU0_UPHY1_PRSNT1_L-I","FPGA_RSVD_FFU6-O",
+		"CPU0_UPHY1_PRSNT0_L-I","FPGA_RSVD_FFU7-O",
+		"CPU0_UPHY0_PRSNT1_L-I","RSVD_NV_PLT_DETECT-O",
+		"CPU0_UPHY0_PRSNT0_L-I","SPI1_INT_L-O",
+		"CPU1_UPHY3_PRSNT1_L-I","",
+		"CPU1_UPHY3_PRSNT0_L-I","HMC_EROT_MUX_STATUS",
+		"CPU1_UPHY2_PRSNT1_L-I","",
+		"CPU1_UPHY2_PRSNT0_L-I","",
+		"CPU1_UPHY1_PRSNT1_L-I","",
+		"CPU1_UPHY1_PRSNT0_L-I","",
+		"CPU1_UPHY0_PRSNT1_L-I","",
+		"CPU1_UPHY0_PRSNT0_L-I","",
+		"FAN1_PRESENT_L-I","",
+		"FAN0_PRESENT_L-I","",
+		"","",
+		"IPEX_CABLE_PRSNT_L-I","",
+		"M2_1_PRSNT_L-I","",
+		"M2_0_PRSNT_L-I","",
+		"CPU1_UPHY4_PRSNT1_L-I","",
+		"CPU0_UPHY4_PRSNT0_L-I","",
+		"","",
+		"I2C_RTC_ALERT_L-I","",
+		"FAN7_PRESENT_L-I","",
+		"FAN6_PRESENT_L-I","",
+		"FAN5_PRESENT_L-I","",
+		"FAN4_PRESENT_L-I","",
+		"FAN3_PRESENT_L-I","",
+		"FAN2_PRESENT_L-I","",
+		"IOBRD0_IOX_INT_L-I","",
+		"IOBRD1_PRSNT_L-I","",
+		"IOBRD0_PRSNT_L-I","",
+		"IOBRD1_PWR_GOOD-I","",
+		"IOBRD0_PWR_GOOD-I","",
+		"","",
+		"","",
+		"FAN_FAIL_IN_L-I","",
+		"","",
+		"","",
+		"","",
+		"PDB_CABLE_PRESENT_L-I","",
+		"","",
+		"CHASSIS_PWR_BRK_L-I","",
+		"","",
+		"IOBRD1_IOX_INT_L-I","",
+		"10GBE_SMBALRT_L-I","",
+		"PCIE_WAKE_L-I","",
+		"I2C_M21_ALERT_L-I","",
+		"I2C_M20_ALERT_L-I","",
+		"TRAY_FAST_SHDN_L-I","",
+		"UID_BTN_N-I","",
+		"PWR_BTN_L-I","",
+		"PSU_SMB_ALERT_L-I","",
+		"","",
+		"","",
+		"NODE_LOC_ID[0]-I","",
+		"NODE_LOC_ID[1]-I","",
+		"NODE_LOC_ID[2]-I","",
+		"NODE_LOC_ID[3]-I","",
+		"NODE_LOC_ID[4]-I","",
+		"NODE_LOC_ID[5]-I","",
+		"FAN10_PRESENT_L-I","",
+		"FAN9_PRESENT_L-I","",
+		"FAN8_PRESENT_L-I","",
+		"FPGA1_READY_HMC-I","",
+		"DP_HPD-I","",
+		"HMC_I2C3_FPGA_ALERT_L-I","",
+		"HMC_I2C2_FPGA_ALERT_L-I","",
+		"FPGA0_READY_HMC-I","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"LEAK_DETECT_ALERT_L-I","",
+		"MOD1_B2B_CABLE_PRESENT_L-I","",
+		"MOD1_CLINK_CABLE_PRESENT_L-I","",
+		"FAN11_PRESENT_L-I","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"RSVD_SGPIO_IN_CRC[0]","RSVD_SGPIO_O_CRC[7]",
+		"RSVD_SGPIO_IN_CRC[1]","RSVD_SGPIO_O_CRC[6]",
+		"RSVD_SGPIO_IN_CRC[2]","RSVD_SGPIO_O_CRC[5]",
+		"RSVD_SGPIO_IN_CRC[3]","RSVD_SGPIO_O_CRC[4]",
+		"RSVD_SGPIO_IN_CRC[4]","RSVD_SGPIO_O_CRC[3]",
+		"RSVD_SGPIO_IN_CRC[5]","RSVD_SGPIO_O_CRC[2]",
+		"RSVD_SGPIO_IN_CRC[6]","RSVD_SGPIO_O_CRC[1]",
+		"RSVD_SGPIO_IN_CRC[7]","RSVD_SGPIO_O_CRC[0]";
+};
+
+// I2C1, SSIF IPMI interface
+&i2c0 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	ssif-bmc@10 {
+		compatible = "ssif-bmc";
+		reg = <0x10>;
+	};
+};
+
+// I2C2
+// BMC_I2C1_FPGA - Secondary FPGA
+// HMC EROT
+&i2c1 {
+	status = "okay";
+	clock-frequency = <400000>;
+	multi-master;
+};
+
+// I2C3
+// BMC_I2C0_FPGA - Primary FPGA
+// HMC FRU EEPROM
+&i2c2 {
+	status = "okay";
+	clock-frequency = <400000>;
+	multi-master;
+};
+
+// I2C4
+&i2c3 {
+	status = "disabled";
+};
+
+// I2C5
+// RTC Driver
+// IO Expander
+&i2c4 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	// Module 0, Expander @0x21
+	exp4: gpio@21 {
+		compatible = "nxp,pca9555";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"RTC_MUX_SEL-O",
+			"PCI_MUX_SEL-O",
+			"TPM_MUX_SEL-O",
+			"FAN_MUX-SEL-O",
+			"SGMII_MUX_SEL-O",
+			"DP_MUX_SEL-O",
+			"UPHY3_USB_SEL-O",
+			"NCSI_MUX_SEL-O",
+			"BMC_PHY_RST-O",
+			"RTC_CLR_L-O",
+			"BMC_12V_CTRL-O",
+			"PS_RUN_IO0_PG-I",
+			"",
+			"",
+			"",
+			"";
+	};
+};
+
+// I2C6
+// Module 0/1 I2C MUX x3
+&i2c5 {
+	status = "okay";
+	clock-frequency = <400000>;
+	multi-master;
+
+	i2c-mux@71 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+
+		imux16: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux17: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			i2c-mux@74 {
+				compatible = "nxp,pca9546";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x74>;
+				i2c-mux-idle-disconnect;
+
+				i2c17mux0: i2c@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+				};
+
+				i2c17mux1: i2c@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+				};
+
+				i2c17mux2: i2c@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+				};
+
+				i2c17mux3: i2c@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+				};
+			};
+		};
+
+		imux18: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux19: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+
+	i2c-mux@72 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x72>;
+		i2c-mux-idle-disconnect;
+
+		imux20: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux21: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			gpio@21 {
+				compatible = "nxp,pca9555";
+				reg = <0x21>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-line-names =
+					"RST_CX_0_L-O",
+					"RST_CX_1_L-O",
+					"CX0_SSD0_PRSNT_L-I",
+					"CX1_SSD1_PRSNT_L-I",
+					"CX_BOOT_CMPLT_CX0-I",
+					"CX_BOOT_CMPLT_CX1-I",
+					"CX_TWARN_CX0_L-I",
+					"CX_TWARN_CX1_L-I",
+					"CX_OVT_SHDN_CX0-I",
+					"CX_OVT_SHDN_CX1-I",
+					"FNP_L_CX0-O",
+					"FNP_L_CX1-O",
+					"",
+					"MCU_GPIO-I",
+					"MCU_RST_N-O",
+					"MCU_RECOVERY_N-O";
+			};
+		};
+
+		imux22: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux23: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+
+	i2c-mux@73 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x73>;
+		i2c-mux-idle-disconnect;
+
+		imux24: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux25: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			i2c-mux@70 {
+				compatible = "nxp,pca9546";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x70>;
+				i2c-mux-idle-disconnect;
+
+				i2c25mux0: i2c@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+				};
+
+				i2c25mux1: i2c@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+				};
+
+				i2c25mux2: i2c@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+				};
+
+				i2c25mux3: i2c@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+				};
+			};
+		};
+
+		imux26: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux27: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+
+	i2c-mux@75 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x75>;
+		i2c-mux-idle-disconnect;
+
+		imux28: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux29: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			i2c-mux@74 {
+				compatible = "nxp,pca9546";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x74>;
+				i2c-mux-idle-disconnect;
+
+				i2c29mux0: i2c@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+				};
+
+				i2c29mux1: i2c@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+				};
+
+				i2c29mux2: i2c@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+				};
+
+				i2c29mux3: i2c@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+				};
+			};
+		};
+
+		imux30: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux31: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+
+	i2c-mux@76 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x76>;
+		i2c-mux-idle-disconnect;
+
+		imux32: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux33: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			gpio@21 {
+				compatible = "nxp,pca9555";
+				reg = <0x21>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-line-names =
+					"SEC_RST_CX_0_L-O",
+					"SEC_RST_CX_1_L-O",
+					"SEC_CX0_SSD0_PRSNT_L-I",
+					"SEC_CX1_SSD1_PRSNT_L-I",
+					"SEC_CX_BOOT_CMPLT_CX0-I",
+					"SEC_CX_BOOT_CMPLT_CX1-I",
+					"SEC_CX_TWARN_CX0_L-I",
+					"SEC_CX_TWARN_CX1_L-I",
+					"SEC_CX_OVT_SHDN_CX0-I",
+					"SEC_CX_OVT_SHDN_CX1-I",
+					"SEC_FNP_L_CX0-O",
+					"SEC_FNP_L_CX1-O",
+					"",
+					"SEC_MCU_GPIO-I",
+					"SEC_MCU_RST_N-O",
+					"SEC_MCU_RECOVERY_N-O";
+				};
+		};
+
+		imux34: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux35: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+
+	i2c-mux@77 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x77>;
+		i2c-mux-idle-disconnect;
+
+		imux36: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		imux37: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		imux38: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		imux39: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+// I2C7
+// Module 0/1 Leak Sensors
+// Module 0/1 Fan Controllers
+&i2c6 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	pmic@12 {
+		compatible = "ti,lm5066i";
+		reg = <0x12>;
+		shunt-resistor-micro-ohms = <190>;
+		status = "okay";
+	};
+
+	pmic@14 {
+		compatible = "ti,lm5066i";
+		reg = <0x14>;
+		shunt-resistor-micro-ohms = <190>;
+		status = "okay";
+	};
+
+	pwm@20 {
+		compatible = "maxim,max31790";
+		reg = <0x20>;
+	};
+
+	pwm@23 {
+		compatible = "maxim,max31790";
+		reg = <0x23>;
+	};
+
+	pwm@2c {
+		compatible = "maxim,max31790";
+		reg = <0x2c>;
+	};
+
+	pwm@2f {
+		compatible = "maxim,max31790";
+		reg = <0x2f>;
+	};
+};
+
+// I2C9
+// M.2
+&i2c8 {
+	status = "okay";
+	clock-frequency = <400000>;
+	multi-master;
+};
+
+// I2C10
+// HMC IO Expander
+// Module 0/1 IO Expanders
+&i2c9 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	// Module 0, Expander @0x20
+	exp0: gpio@20 {
+		compatible = "nxp,pca9555";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"FPGA_THERM_OVERT_L-I",
+			"FPGA_READY_BMC-I",
+			"HMC_BMC_DETECT-O",
+			"HMC_PGOOD-O",
+			"",
+			"BMC_STBY_CYCLE-O",
+			"FPGA_EROT_FATAL_ERROR_L-I",
+			"WP_HW_EXT_CTRL_L-O",
+			"EROT_FPGA_RST_L-O",
+			"FPGA_EROT_RECOVERY_L-O",
+			"BMC_EROT_FPGA_SPI_MUX_SEL-O",
+			"USB_HUB_RESET_L-O",
+			"NCSI_CS1_SEL-O",
+			"SGPIO_EN_L-O",
+			"B2B_IOEXP_INT_L-I",
+			"I2C_BUS_MUX_RESET_L-O";
+	};
+
+	// Module 1, Expander @0x21
+	exp1: gpio@21 {
+		compatible = "nxp,pca9555";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"SEC_FPGA_THERM_OVERT_L-I",
+			"SEC_FPGA_READY_BMC-I",
+			"",
+			"",
+			"",
+			"",
+			"SEC_FPGA_EROT_FATAL_ERROR_L-I",
+			"SEC_WP_HW_EXT_CTRL_L-O",
+			"SEC_EROT_FPGA_RST_L-O",
+			"SEC_FPGA_EROT_RECOVERY_L-O",
+			"SEC_BMC_EROT_FPGA_SPI_MUX_SEL-O",
+			"SEC_USB2_HUB_RST_L-O",
+			"",
+			"",
+			"",
+			"SEC_I2C_BUS_MUX_RESET_L-O";
+	};
+
+	// HMC Expander @0x27
+	exp2: gpio@27 {
+		compatible = "nxp,pca9555";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"HMC_PRSNT_L-I",
+			"HMC_READY-I",
+			"HMC_EROT_FATAL_ERROR_L-I",
+			"I2C_MUX_SEL-O",
+			"HMC_EROT_SPI_MUX_SEL-O",
+			"HMC_EROT_RECOVERY_L-O",
+			"HMC_EROT_RST_L-O",
+			"GLOBAL_WP_HMC-O",
+			"FPGA_RST_L-O",
+			"USB2_HUB_RST-O",
+			"CPU_UART_MUX_SEL-O",
+			"",
+			"",
+			"",
+			"",
+			"";
+	};
+
+	// HMC Expander @0x74
+	exp3: gpio@74 {
+		compatible = "nxp,pca9555";
+		reg = <0x74>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+		gpio-line-names =
+			"IOB_PRSNT_L",
+			"IOB_DP_HPD",
+			"IOX_BMC_RESET",
+			"IOB_IOEXP_INT_L",
+			"IOB_UID_LED_L",
+			"IOB_UID_BTN_L",
+			"IOB_SYS_RST_BTN_L",
+			"IOB_PWR_LED_L",
+			"IOB_PWR_BTN_L",
+			"IOB_PHY_RST",
+			"CPLD_JTAG_MUX_SEL",
+			"",
+			"",
+			"",
+			"",
+			"";
+	};
+};
+
+// I2C11
+// BMC FRU EEPROM
+// BMC Temp Sensor
+&i2c10 {
+	status = "okay";
+	clock-frequency = <400000>;
+
+	// BMC FRU EEPROM - 256 bytes
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		pagesize = <8>;
+	};
+};
+
+// I2C12
+&i2c11 {
+	status = "disabled";
+};
+
+// I2C13
+&i2c12 {
+	status = "disabled";
+};
+
+// I2C14
+// Module 0 UPHY3 SMBus
+&i2c13 {
+	status = "disabled";
+};
+
+// I2C15
+// Module 1 UPHY3 SMBus
+&i2c14 {
+	status = "okay";
+	clock-frequency = <100000>;
+	multi-master;
+
+	//E1.S drive slot 0-3
+	i2c-mux@77 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x77>;
+		i2c-mux-idle-disconnect;
+
+		e1si2c0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		e1si2c1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		e1si2c2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		e1si2c3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+// I2C16
+&i2c15 {
+	status = "okay";
+	clock-frequency = <100000>;
+	multi-master;
+
+	//E1.S drive slot 4-7
+	i2c-mux@77 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x77>;
+		i2c-mux-idle-disconnect;
+
+		e1si2c4: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		e1si2c5: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		e1si2c6: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		e1si2c7: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&rng {
+	status = "okay";
+};
+
+&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 {
+		function = "EMMC";
+		groups = "EMMCG5";
+	};
+};
-- 
2.25.1

Re: [PATCH v4 0/3] Add device tree for Nvidia's GB200NVL BMC

[Rob Herring (Arm)]

On Mon, 24 Mar 2025 17:59:23 +0000, Willie Thai wrote:
> The GB200NVL BMC is an Aspeed Ast2600 based BMC
> for Nvidia Blackwell GB200NVL platform.
> Reference to Ast2600 SOC [1].
> Reference to Blackwell GB200NVL Platform [2].
> 
> Co-developed-by: Mars Yang <maryang@nvidia.com>
> Signed-off-by: Mars Yang <maryang@nvidia.com>
> Cc: Krzysztof Kozlowski <krzk@kernel.org>
> Cc: Andrew Lunn <andrew@lunn.ch>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Paul Menzel <pmenzel@molgen.mpg.de>
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Link: https://www.aspeedtech.com/server_ast2600/ [1]
> Link: https://nvdam.widen.net/s/wwnsxrhm2w/blackwell-datasheet-3384703 [2]
> Signed-off-by: Willie Thai <wthai@nvidia.com>
> ---
> Changes v1 -> v2:
>   - Fix the SOB name [Krzysztof]
>   - Fix warnings from scripts/checkpatch.pl run [Krzysztof]
>   - Fix DTS coding style [Krzysztof]
>   - Move pinctrl override to the bottom [Krzysztof]
>   - Drop bootargs [Krzysztof]
>   - Follow DTS coding style and change naming for leds node [Krzysztof]
>   - Change flash 0 status property [Krzysztof]
>   - Change the phy-mode to rgmii [Andrew]
>   - Remove the max-speed in mac0 [Andrew]
>   - Put gpio line name in one line per group of 8 gpios, but keep some b/c they can exceed length limit [Paul]
> Changes v2 -> v3:
>   - Fix missing new line [Krzysztof]
>   - Fix missing binding define, adding it in the patch no.1 of this patch set v3 [Krzysztof, Rob]
>   - Fix DTS coding style [Krzysztof]
>   - Modify nodes name to generic name for: i2c expander pca9546, gpio expander pca9555, power monitor lm5066i, fan controller max31790 [Krzysztof]
>   - Skip mac setting and wait till the delay issue in phy-mode fix from Aspeed SOC vendor side [Andrew]
>   - Remove i2c-scl-clk-low-timeout-us which is Apseed proprietary property [Mars]
> Changes v3 -> v4:
>   - Order binding patch first in the patch set [Andrew Jeffery]
>   - Make the commit message more concise [Krzysztof]
>   - Remove stray blank lines [Krzysztof]
>   - Remove unnecessary comments [Krzysztof]
>   - Remove underscore, repalce by dash symbol in node name [Krzysztof]
>   - Remove disable-master property in i2c as it is downstream added property [Rob, Andrew Jeffery]
>   - Remove #address-cells, #size-cells in nxp,pca9555 and maxim,max31790 as they are no longer defined [Rob, Andrew Jeffery]
> ---
> 
> Willie Thai (3):
>   dt-bindings: arm: aspeed: add Nvidia's GB200NVL BMC
>   dt-bindings: pinctrl: aspeed,ast2600-pinctrl
>   ARM: dts: aspeed: Add device tree for Nvidia's GB200NVL BMC
> 
>  .../bindings/arm/aspeed/aspeed.yaml           |    1 +
>  .../pinctrl/aspeed,ast2600-pinctrl.yaml       |    1 +
>  arch/arm/boot/dts/aspeed/Makefile             |    1 +
>  .../aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 1149 +++++++++++++++++
>  4 files changed, 1152 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
> 
> --
> 2.25.1
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/aspeed/' for 20250324175926.222473-1-wthai@nvidia.com:

arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: timer: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/timer/arm,arch_timer.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /sdram@1e6e0000: failed to match any schema with compatible: ['aspeed,ast2600-sdram-edac', 'syscon']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: bus@1e600000: compatible: ['aspeed,ast2600-ahbc', 'syscon'] is too long
	from schema $id: http://devicetree.org/schemas/bus/aspeed,ast2600-ahbc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: syscon@1e6e2000: 'smp-memram@180' does not match any of the regexes: '^interrupt-controller@[0-9a-f]+$', '^p2a-control@[0-9a-f]+$', '^pinctrl(@[0-9a-f]+)?$', '^silicon-id@[0-9a-f]+$', 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/mfd/aspeed,ast2x00-scu.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e6e0000/syscon@1e6e2000/smp-memram@180: failed to match any schema with compatible: ['aspeed,ast2600-smpmem']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e6e0000/syscon@1e6e2000/interrupt-controller@560: failed to match any schema with compatible: ['aspeed,ast2600-scu-ic0']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e6e0000/syscon@1e6e2000/interrupt-controller@570: failed to match any schema with compatible: ['aspeed,ast2600-scu-ic1']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e6e0000/display@1e6e6000: failed to match any schema with compatible: ['aspeed,ast2600-gfx', 'syscon']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: adc@1e6e9000: 'interrupts' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: adc@1e6e9100: 'interrupts' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: crypto@1e6fa000: 'aspeed,ahbc' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/crypto/aspeed,ast2600-acry.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: sdc@1e740000: sdhci@1e740100:compatible: ['aspeed,ast2600-sdhci', 'sdhci'] is too long
	from schema $id: http://devicetree.org/schemas/mmc/aspeed,sdhci.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: sdc@1e740000: sdhci@1e740200:compatible: ['aspeed,ast2600-sdhci', 'sdhci'] is too long
	from schema $id: http://devicetree.org/schemas/mmc/aspeed,sdhci.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/sdc@1e740000/sdhci@1e740100: failed to match any schema with compatible: ['aspeed,ast2600-sdhci', 'sdhci']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/sdc@1e740000/sdhci@1e740200: failed to match any schema with compatible: ['aspeed,ast2600-sdhci', 'sdhci']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e780000/timer@1e782000: failed to match any schema with compatible: ['aspeed,ast2600-timer']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: lpc@1e789000: lpc-snoop@80: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/mfd/aspeed-lpc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: lpc@1e789000: reg-io-width: 4 is not of type 'object'
	from schema $id: http://devicetree.org/schemas/mfd/aspeed-lpc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: kcs@24: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: kcs@28: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: kcs@2c: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: kcs@114: 'clocks' does not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/ipmi/aspeed,ast2400-kcs-bmc.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e780000/lpc@1e789000/lhc@a0: failed to match any schema with compatible: ['aspeed,ast2600-lhc']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e780000/lpc@1e789000/ibt@140: failed to match any schema with compatible: ['aspeed,ast2600-ibt-bmc']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: fsi@1e79b000: compatible: ['aspeed,ast2600-fsi-master', 'fsi-master'] is too long
	from schema $id: http://devicetree.org/schemas/fsi/aspeed,ast2600-fsi-master.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e790000/fsi@1e79b000: failed to match any schema with compatible: ['aspeed,ast2600-fsi-master', 'fsi-master']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: fsi@1e79b100: compatible: ['aspeed,ast2600-fsi-master', 'fsi-master'] is too long
	from schema $id: http://devicetree.org/schemas/fsi/aspeed,ast2600-fsi-master.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e790000/fsi@1e79b100: failed to match any schema with compatible: ['aspeed,ast2600-fsi-master', 'fsi-master']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: /ahb/apb@1e790000/dma-controller@1e79e000: failed to match any schema with compatible: ['aspeed,ast2600-udma']