* [PATCH 1/3] ARM: dts: aspeed: nvidia: gb200nvl: Add VCC Supply
2025-05-25 18:20 [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Willie Thai
@ 2025-05-25 18:20 ` Willie Thai
2025-05-25 18:20 ` [PATCH 2/3] ARM: dts: aspeed: nvidia: gb200nvl: Enable i2c3 bus Willie Thai
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Willie Thai @ 2025-05-25 18:20 UTC (permalink / raw)
To: wthai, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Joel Stanley, Andrew Jeffery
Cc: devicetree, linux-arm-kernel, linux-aspeed, linux-kernel,
Deepak Kodihalli, Ed Tanous, Leo Huang
Add Vcc supply to avoid probing the devices before they have power.
Signed-off-by: Deepak Kodihalli <dkodihalli@nvidia.com>
Signed-off-by: Ed Tanous <etanous@nvidia.com>
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
.../dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
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
index 41e3e9dd85f571254a08d40e68c0d8f8f049256b..0b0abb259ca3a68b43dcfa61df69b8a15421d67c 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
@@ -126,6 +126,16 @@ button-uid {
gpio = <&sgpiom0 154 GPIO_ACTIVE_LOW>;
};
};
+
+ standby_power_regulator: standby-power-regulator {
+ compatible = "regulator-fixed";
+ regulator-name = "standby_power";
+ gpio = <&gpio0 ASPEED_GPIO(M, 3) GPIO_ACTIVE_HIGH>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ enable-active-high;
+ regulator-always-on;
+ };
};
// Enable Primary flash on FMC for bring up activity
@@ -420,6 +430,7 @@ &i2c3 {
&i2c4 {
status = "okay";
clock-frequency = <400000>;
+ vcc-supply = <&standby_power_regulator>;
// Module 0, Expander @0x21
exp4: gpio@21 {
@@ -431,6 +442,7 @@ exp4: gpio@21 {
#interrupt-cells = <2>;
interrupt-parent = <&gpio1>;
interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"RTC_MUX_SEL-O",
"PCI_MUX_SEL-O",
@@ -457,6 +469,7 @@ &i2c5 {
status = "okay";
clock-frequency = <400000>;
multi-master;
+ vcc-supply = <&standby_power_regulator>;
i2c-mux@71 {
compatible = "nxp,pca9546";
@@ -464,6 +477,7 @@ i2c-mux@71 {
#size-cells = <0>;
reg = <0x71>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux16: i2c@0 {
#address-cells = <1>;
@@ -482,6 +496,7 @@ i2c-mux@74 {
#size-cells = <0>;
reg = <0x74>;
i2c-mux-idle-disconnect;
+ vcc-supply = <&standby_power_regulator>;
i2c17mux0: i2c@0 {
#address-cells = <1>;
@@ -528,6 +543,7 @@ i2c-mux@72 {
#size-cells = <0>;
reg = <0x72>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux20: i2c@0 {
#address-cells = <1>;
@@ -545,6 +561,7 @@ gpio@21 {
reg = <0x21>;
gpio-controller;
#gpio-cells = <2>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"RST_CX_0_L-O",
"RST_CX_1_L-O",
@@ -584,6 +601,7 @@ i2c-mux@73 {
#size-cells = <0>;
reg = <0x73>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux24: i2c@0 {
#address-cells = <1>;
@@ -602,6 +620,7 @@ i2c-mux@70 {
#size-cells = <0>;
reg = <0x70>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
i2c25mux0: i2c@0 {
#address-cells = <1>;
@@ -648,6 +667,7 @@ i2c-mux@75 {
#size-cells = <0>;
reg = <0x75>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux28: i2c@0 {
#address-cells = <1>;
@@ -666,6 +686,7 @@ i2c-mux@74 {
#size-cells = <0>;
reg = <0x74>;
i2c-mux-idle-disconnect;
+ vcc-supply = <&standby_power_regulator>;
i2c29mux0: i2c@0 {
#address-cells = <1>;
@@ -712,6 +733,7 @@ i2c-mux@76 {
#size-cells = <0>;
reg = <0x76>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux32: i2c@0 {
#address-cells = <1>;
@@ -729,6 +751,7 @@ gpio@21 {
reg = <0x21>;
gpio-controller;
#gpio-cells = <2>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"SEC_RST_CX_0_L-O",
"SEC_RST_CX_1_L-O",
@@ -768,6 +791,7 @@ i2c-mux@77 {
#size-cells = <0>;
reg = <0x77>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
imux36: i2c@0 {
#address-cells = <1>;
@@ -801,6 +825,7 @@ imux39: i2c@3 {
&i2c6 {
status = "okay";
clock-frequency = <400000>;
+ vcc-supply = <&standby_power_regulator>;
pmic@12 {
compatible = "ti,lm5066i";
@@ -843,6 +868,7 @@ &i2c8 {
status = "okay";
clock-frequency = <400000>;
multi-master;
+ vcc-supply = <&standby_power_regulator>;
};
// I2C10
@@ -851,6 +877,7 @@ &i2c8 {
&i2c9 {
status = "okay";
clock-frequency = <400000>;
+ vcc-supply = <&standby_power_regulator>;
// Module 0, Expander @0x20
exp0: gpio@20 {
@@ -862,6 +889,7 @@ exp0: gpio@20 {
#interrupt-cells = <2>;
interrupt-parent = <&gpio1>;
interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"FPGA_THERM_OVERT_L-I",
"FPGA_READY_BMC-I",
@@ -891,6 +919,7 @@ exp1: gpio@21 {
#interrupt-cells = <2>;
interrupt-parent = <&gpio1>;
interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"SEC_FPGA_THERM_OVERT_L-I",
"SEC_FPGA_READY_BMC-I",
@@ -949,6 +978,7 @@ exp3: gpio@74 {
#interrupt-cells = <2>;
interrupt-parent = <&gpio1>;
interrupts = <ASPEED_GPIO(B, 6) IRQ_TYPE_LEVEL_LOW>;
+ vcc-supply = <&standby_power_regulator>;
gpio-line-names =
"IOB_PRSNT_L",
"IOB_DP_HPD",
@@ -1006,6 +1036,7 @@ &i2c14 {
status = "okay";
clock-frequency = <100000>;
multi-master;
+ vcc-supply = <&standby_power_regulator>;
//E1.S drive slot 0-3
i2c-mux@77 {
@@ -1014,6 +1045,7 @@ i2c-mux@77 {
#size-cells = <0>;
reg = <0x77>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
e1si2c0: i2c@0 {
#address-cells = <1>;
@@ -1046,6 +1078,7 @@ &i2c15 {
status = "okay";
clock-frequency = <100000>;
multi-master;
+ vcc-supply = <&standby_power_regulator>;
//E1.S drive slot 4-7
i2c-mux@77 {
@@ -1054,6 +1087,7 @@ i2c-mux@77 {
#size-cells = <0>;
reg = <0x77>;
i2c-mux-idle-disconnect;
+ vdd-supply = <&standby_power_regulator>;
e1si2c4: i2c@0 {
#address-cells = <1>;
--
2.25.1
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH 2/3] ARM: dts: aspeed: nvidia: gb200nvl: Enable i2c3 bus
2025-05-25 18:20 [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Willie Thai
2025-05-25 18:20 ` [PATCH 1/3] ARM: dts: aspeed: nvidia: gb200nvl: Add VCC Supply Willie Thai
@ 2025-05-25 18:20 ` Willie Thai
2025-05-25 18:20 ` [PATCH 3/3] ARM: dts: aspeed: nvidia: gb200nvl: Repurpose the HMC gpio pin Willie Thai
2025-05-27 17:56 ` [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Rob Herring (Arm)
3 siblings, 0 replies; 5+ messages in thread
From: Willie Thai @ 2025-05-25 18:20 UTC (permalink / raw)
To: wthai, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Joel Stanley, Andrew Jeffery
Cc: devicetree, linux-arm-kernel, linux-aspeed, linux-kernel,
Deepak Kodihalli, Ed Tanous, Leo Huang
Enable i2c3 bus for telemetry fetching purpose.
Signed-off-by: Deepak Kodihalli <dkodihalli@nvidia.com>
Signed-off-by: Ed Tanous <etanous@nvidia.com>
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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
index 0b0abb259ca3a68b43dcfa61df69b8a15421d67c..1240f6ee92c8164dc642a83d94719a73c1c9bfd5 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
@@ -421,7 +421,8 @@ &i2c2 {
// I2C4
&i2c3 {
- status = "disabled";
+ status = "okay";
+ vcc-supply = <&standby_power_regulator>;
};
// I2C5
--
2.25.1
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH 3/3] ARM: dts: aspeed: nvidia: gb200nvl: Repurpose the HMC gpio pin
2025-05-25 18:20 [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Willie Thai
2025-05-25 18:20 ` [PATCH 1/3] ARM: dts: aspeed: nvidia: gb200nvl: Add VCC Supply Willie Thai
2025-05-25 18:20 ` [PATCH 2/3] ARM: dts: aspeed: nvidia: gb200nvl: Enable i2c3 bus Willie Thai
@ 2025-05-25 18:20 ` Willie Thai
2025-05-27 17:56 ` [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Rob Herring (Arm)
3 siblings, 0 replies; 5+ messages in thread
From: Willie Thai @ 2025-05-25 18:20 UTC (permalink / raw)
To: wthai, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Joel Stanley, Andrew Jeffery
Cc: devicetree, linux-arm-kernel, linux-aspeed, linux-kernel,
Deepak Kodihalli, Ed Tanous, Leo Huang
Repurpose the HMC reset pin to FPGA reset pin.
This change is according to hardware change.
Signed-off-by: Deepak Kodihalli <dkodihalli@nvidia.com>
Signed-off-by: Ed Tanous <etanous@nvidia.com>
Signed-off-by: Willie Thai <wthai@nvidia.com>
---
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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
index 1240f6ee92c8164dc642a83d94719a73c1c9bfd5..dcf3d075c7e373709820435a42260c6d2f7d2dbe 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts
@@ -1135,7 +1135,7 @@ &gpio0 {
/*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",
+ /*M0-M7*/ "PCIE_EP_RST_EN-O", "BMC_FRU_WP-O", "FPGA_RST_L-O", "STBY_POWER_EN-O",
"STBY_POWER_PG-I", "PCIE_EP_RST_L-O", "", "",
/*N0-N7*/ "", "", "", "", "", "", "", "",
/*O0-O7*/ "", "", "", "", "", "", "", "",
--
2.25.1
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware
2025-05-25 18:20 [PATCH 0/3] ARM: dts: aspeed: nvidia: Update DTS to support GB200NVL hardware Willie Thai
` (2 preceding siblings ...)
2025-05-25 18:20 ` [PATCH 3/3] ARM: dts: aspeed: nvidia: gb200nvl: Repurpose the HMC gpio pin Willie Thai
@ 2025-05-27 17:56 ` Rob Herring (Arm)
3 siblings, 0 replies; 5+ messages in thread
From: Rob Herring (Arm) @ 2025-05-27 17:56 UTC (permalink / raw)
To: Willie Thai
Cc: Conor Dooley, linux-arm-kernel, Ed Tanous, linux-kernel,
linux-aspeed, devicetree, Andrew Jeffery, Joel Stanley,
Leo Huang, Krzysztof Kozlowski, Deepak Kodihalli
On Sun, 25 May 2025 18:20:16 +0000, Willie Thai wrote:
> Update the DTS file for the GB200NVL hardware change.
>
> Signed-off-by: Deepak Kodihalli <dkodihalli@nvidia.com>
> Signed-off-by: Ed Tanous <etanous@nvidia.com>
> Signed-off-by: Leo Huang <leohu@nvidia.com>
> Signed-off-by: Willie Thai <wthai@nvidia.com>
>
> Signed-off-by: Willie Thai <wthai@nvidia.com>
> ---
> Willie Thai (3):
> ARM: dts: aspeed: nvidia: gb200nvl: Add VCC Supply
> ARM: dts: aspeed: nvidia: gb200nvl: Enable i2c3 bus
> ARM: dts: aspeed: nvidia: gb200nvl: Repurpose the HMC gpio pin
>
> .../dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dts | 39 ++++++++++++++++++++--
> 1 file changed, 37 insertions(+), 2 deletions(-)
> ---
> base-commit: 13c9c6eabf033ed4f369ad4d29bdc58ed4a411e3
> change-id: 20250525-dts-8eca0cb6dfae
>
> Best regards,
> --
> Willie Thai <wthai@nvidia.com>
>
>
>
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
This patch series was applied (using b4) to base:
Base: using specified base-commit 13c9c6eabf033ed4f369ad4d29bdc58ed4a411e3
If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)
New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/aspeed/' for 20250525-dts-v1-0-9ac63ad3bf15@nvidia.com:
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@200 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@280 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@300 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c-mux@74 (nxp,pca9546): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c-mux@74 (nxp,pca9546): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/i2c-mux-pca954x.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@380 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@480 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@500 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@780 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-gb200nvl-bmc.dtb: i2c@800 (aspeed,ast2600-i2c-bus): Unevaluated properties are not allowed ('vcc-supply' was unexpected)
from schema $id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
^ permalink raw reply [flat|nested] 5+ messages in thread