linux-kernel - Re: arm64: allwinner: a523: Enable MCU PRCM and NPU

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Message-ID: <CAGb2v64w0Hr+hrDoNjSOx=m8hZ37-jM=jDseygmxiRQmtNszEg@mail.gmail.com>
Date: Sat, 6 Sep 2025 23:19:43 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Muhammed Subair <msubair@...mail.com>
Cc: Jernej Skrabec <jernej@...nel.org>, Samuel Holland <samuel@...lland.org>, 
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, 
	"linux-sunxi@...ts.linux.dev" <linux-sunxi@...ts.linux.dev>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andre Przywara <andre.przywara@....com>, 
	Jernej Skrabec <jernej.skrabec@...il.com>
Subject: Re: arm64: allwinner: a523: Enable MCU PRCM and NPU

Dropping network and DT folks and mailing lists. Please report issues on
the relevant thread.

On Sat, Sep 6, 2025 at 3:30 PM Muhammed Subair <msubair@...mail.com> wrote:
>
> Hello
>
> I have a board with A527 chip , and NPU is detected in  legacy while the new patches shows below message
>
> upstream 6.17-rc4
> # dmesg | grep [   21.988215] etnaviv-gpu 7122000.npu: probe with driver etnaviv-gpu failed with error -110
>  7122000
> [   21.988173] etnaviv-gpu 7122000.npu: deferred probe timeout, ignoring dependency
> [   21.988215] etnaviv-gpu 7122000.npu: probe with driver etnaviv-gpu failed with error -110

This shows that the driver is waiting for some resource to appear and timed
out. Do you have all needed device drivers enabled? I think you need to have
the power domain drivers and the MCU clk driver enabled.

ChenYu


> legacy 5.15
>
> [   13.887892] npu[106][106] vipcore, platform device compatible=allwinner,npu
> [   13.890322] npu[106][106] vipcore, platform driver device=0xffffff80c1a11c10
> [   13.890394] npu[106][106] vipcore irq number is 116.
> [   13.890471] vipcore 7122000.npu: supply npu not found, using dummy regulator
> [   13.892589] npu[106][106] NPU Use VF3, use freq 696
> [   13.892754] npu[106][106] Get NPU Regulator Control FAIL!
> [   13.892766] npu[106][106] Want set npu vol(1000000) now vol(-22)
> [   13.938664] npu[106][106] core_0, request irqline=116, name=vipcore_0
> [   13.938889] npu[106][106] vipcore, allocate page for video memory, size: 0x2000000bytes
> [   13.938900] npu[106][106] vipcore, video memory heap size is more than 4Mbyte,only can allocate 4M byte from page
> [   13.938948] npu[106][106] vipcore, cpu_physical=0x10cc00000, vip_physical=0x10cc00000, vip_memsize=0x400000
> [   13.940230] npu[106][106] VIPLite driver version 1.13.0.0-AW-2023-01-09
> [   25.090905] sunxi:sunxi_pd_test-0.pd-npu-test:[WARN]: runtime_suspend disable clock
>
> -----Original Message-----
> From: Chen-Yu Tsai <wens@...nel.org>
> Sent: Saturday, 6 September 2025 8:14 AM
> To: Andrew Lunn <andrew+netdev@...n.ch>; David S. Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni <pabeni@...hat.com>; Rob Herring <robh@...nel.org>; Krzysztof Kozlowski <krzk+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>; Chen-Yu Tsai <wens@...e.org>; Jernej Skrabec <jernej@...nel.org>; Samuel Holland <samuel@...lland.org>
> Cc: netdev@...r.kernel.org; devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-sunxi@...ts.linux.dev; linux-kernel@...r.kernel.org; Andre Przywara <andre.przywara@....com>; Jernej Skrabec <jernej.skrabec@...il.com>
> Subject: [PATCH net-next v3 10/10] arm64: dts: allwinner: t527: orangepi-4a: Enable Ethernet port
>
> From: Chen-Yu Tsai <wens@...e.org>
>
> On the Orangepi 4A board, the second Ethernet controller, aka the GMAC200, is connected to an external Motorcomm YT8531 PHY. The PHY uses an external 25MHz crystal, has the SoC's PI15 pin connected to its reset pin, and the PI16 pin for its interrupt pin.
>
> Enable it.
>
> Acked-by: Jernej Skrabec <jernej.skrabec@...il.com>
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> ---
>
> Changes since v1:
> - Switch to generic (tx|rx)-internal-delay-ps properties
> ---
>  .../dts/allwinner/sun55i-t527-orangepi-4a.dts | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
> index 38cd8c7e92da..7afd6e57fe86 100644
> --- a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
> @@ -15,6 +15,7 @@ / {
>         compatible = "xunlong,orangepi-4a", "allwinner,sun55i-t527";
>
>         aliases {
> +               ethernet0 = &gmac1;
>                 serial0 = &uart0;
>         };
>
> @@ -95,11 +96,33 @@ &ehci1 {
>         status = "okay";
>  };
>
> +&gmac1 {
> +       phy-mode = "rgmii-id";
> +       phy-handle = <&ext_rgmii_phy>;
> +       phy-supply = <&reg_cldo4>;
> +
> +       tx-internal-delay-ps = <0>;
> +       rx-internal-delay-ps = <300>;
> +
> +       status = "okay";
> +};
> +
>  &gpu {
>         mali-supply = <&reg_dcdc2>;
>         status = "okay";
>  };
>
> +&mdio1 {
> +       ext_rgmii_phy: ethernet-phy@1 {
> +               compatible = "ethernet-phy-ieee802.3-c22";
> +               reg = <1>;
> +               interrupts-extended = <&pio 8 16 IRQ_TYPE_LEVEL_LOW>; /* PI16 */
> +               reset-gpios = <&pio 8 15 GPIO_ACTIVE_LOW>; /* PI15 */
> +               reset-assert-us = <10000>;
> +               reset-deassert-us = <150000>;
> +       };
> +};
> +
>  &mmc0 {
>         vmmc-supply = <&reg_cldo3>;
>         cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PF6 */
> --
> 2.39.5
>
>