Re: [PATCH 2/2] arm64: dts: broadcom: bcmbca: bcm4908: Add DT for Zyxel EX3510-B

[Florian Fainelli]

On 10/3/24 15:08, Sam Edwards wrote:
> Zyxel EX3510-B is a WiFi 6 capable home gateway (family) based on the
> BCM4906 SoC, with 512MiB of RAM and 512MiB of NAND flash. WiFi support
> consists of a BCM6710 and a BCM6715 attached to separate PCIe buses.
>
> Add an initial devicetree for this system, with support for:
> - Onboard UART (per base dtsi)
> - USB (2.0 only; superspeed devices are treated as high-speed due to an
>      unknown cause)
> - Both buttons (rear reset, front WPS)
> - Almost all LEDs:
>    - Power (red/green)
>    - Internet (red/green)
>    - WAN (green)
>    - LAN (green; anode is connected to GPIO 13 so currently
>        nonfunctioning)
>    - USB (green)
>    - WPS button (red/green)
>    - Absent in DT: There are 2.4GHz/5.0GHz WiFi status LEDs connected to
>        the WiFi chips instead of the SoC.
> - NAND flash
> - Embedded Ethernet switch
> - Factory-programmed Ethernet MAC address
>
> WiFi cannot be enabled at this time due to Linux lacking drivers for
> both the PCIe controllers and the PCIe WiFi peripherals.

On the topic of PCIe, AFAICT Rafal had made an attempt at modifying 
pcie-brcmstb.c, which is really the same IP, or rather a fork of it. Let 
me know if you need help in figuring out the programming and we can help 
with that.
--
Florian