Thread (10 messages) 10 messages, 4 authors, 2025-08-06

Re: [PATCH v7 0/2] Adding device tree and binding for NVIDIA GB200-UT3.0b

From: Donald Shannon <hidden>
Date: 2025-08-05 18:18:19
Also in: linux-aspeed, linux-devicetree, lkml, openbmc

On 7/24/25 00:54, Krzysztof Kozlowski wrote:
External email: Use caution opening links or attachments


On Wed, Jul 23, 2025 at 03:23:48PM -0700, Donald Shannon wrote:
quoted
Patch 1 adds the binding for the NVIDIA GB200-UT3.0b platform.
Patch 2 adds the device tree for the NVIDIA GB200-UT3.0b platform.

This is an Aspeed AST2600 based unit testing platform for GB200.
UT3.0b is different than nvidia-gb200nvl-bmc due to networking topology
differences, additional gpio expanders, and voltage regulator gating
some devices.

Reference to Ast2600 SOC [1].
Reference to Blackwell GB200NVL Platform [2].

Link: https://www.aspeedtech.com/server_ast2600/ [1]
Link: https://nvdam.widen.net/s/wwnsxrhm2w/blackwell-datasheet-3384703 [2]
Signed-off-by: Donald Shannon <redacted>
---
Changes v1 -> v2:
   - Changed phy-mode to rgmii-id [Lunn]
   - Removed redundant max-speed for mac0 [Lunn]
   - Fixed typo from gb200nvl to gb200 in Makefile
Changes v2 -> v3:
  - Fixed whitespace issues [Krzysztof]
  - Fixed schema validation issues from my end ( there are still issues
  with the aspeed dtsi file that are not related to this new dts)
  [Herring]
  - Reordered to follow style guide [Krzysztof]
  - Removed redundant status okays
  - Changed vcc to vdd for the power gating on the gpio expanders
Changes v3 -> v4:
   - Added changelog [Krzysztof]
   - Added nvidia,gb200-ut30b board binding [Krzysztof]
   - Removed unused imports
   - Reordered a couple other style guide violations
   - Added back in a couple needed "status okay"s
Changes v4 -> v5:
  - Resumed my patch after a pause
  - Don't plan to make this include of nvidia-gb200nvl-bmc due to some
  platform differences
  - Fixed io expanders that weren't gated by the 3.3V standby regulator
  - Fixed incorrect interrupt pin for one IO expander
  - Removed some IO expanders and I2C busses
Changes v5 -> v6:
  - Fixed subject line
  - Added missing gpio-key compatible type to buttons
Changes v6 -> v7:
   - Removed Acked-by Krzysztof
Why? You did not even give me chance to respond to your reply.

Best regards,
Krzysztof
Hi Krzysztof,

I will reply here to keep our discussion together.

I think that the issue was me using your kernel.org email and not your linaro.org email.
I will fix this in the next patch series along with some fixes for the warnings from the other thread.

Thanks,
Don

Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help