linux-kernel - Re: [PATCH 0/3] sunxi: Orange Pi Zero 3 DT support

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Message-ID: <3751904.kQq0lBPeGt@jernej-laptop>
Date:   Thu, 03 Aug 2023 23:07:55 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Andre Przywara <andre.przywara@....com>
Cc:     Icenowy Zheng <uwu@...nowy.me>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] sunxi: Orange Pi Zero 3 DT support

Dne ponedeljek, 31. julij 2023 ob 03:17:22 CEST je Andre Przywara napisal(a):
> Hi,
> 
> Orange Pi recently released the Orange Pi Zero 3 board, which is some
> updated version of their former Zero 2 development board. Some component
> changes (Motorcomm PHY instead of Realtek, different PMIC), some board
> layout changes, and it ships with up to 4GB of DRAM now. The SoC is now
> labelled H618 instead of H616, which apparently is the same, just with
> more L2 cache.
> 
> Split the existing OPi Zero2 DT, to allow sharing most DT nodes, then
> add the binding documentation and DT for the new board.
> 
> Linux v6.5-rc boots out of the box (the PMIC driver just made it in),
> and most things work: UART, PSCI, GPIO, SPI flash, SD card, USB.
> Ethernet is almost working, I get an IP address via DHCP, but no further
> packets come through. Might be either a problem with the new Motorcomm
> PHY driver, or some missing delay settings, I have to investigate, any
> help or advice welcome.

When I worked with Motorcomm PHYs, I had to add 

motorcomm,clk-out-frequency-hz = <125000000>;

and usual reset gpio related properties. Have you tried that? In any case, 
it's not 100% reliable, but I don't know why.

Best regards,
Jernej

> Also let me know if the DT split is a good idea or not, happy to roll
> that back if requested.
> 
> Cheers,
> Andre
> 
> Andre Przywara (3):
>   arm64: dts: allwinner: h616: Split Orange Pi Zero 2 DT
>   dt-bindings: arm: sunxi: document Orange Pi Zero 3 board name
>   arm64: dts: allwinner: h616: Add OrangePi Zero 3 board support
> 
>  .../devicetree/bindings/arm/sunxi.yaml        |   5 +
>  arch/arm64/boot/dts/allwinner/Makefile        |   1 +
>  .../allwinner/sun50i-h616-orangepi-zero2.dts  | 119 +---------------
>  .../allwinner/sun50i-h616-orangepi-zerox.dtsi | 131 ++++++++++++++++++
>  .../allwinner/sun50i-h618-orangepi-zero3.dts  |  86 ++++++++++++
>  5 files changed, 224 insertions(+), 118 deletions(-)
>  create mode 100644
> arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zerox.dtsi create mode
> 100644 arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero3.dts