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From: Frank Wunderlich <frank-w@public-files.de>
To: Sungbo Eo <mans0n@gorani.run>
Cc: linux-mediatek@lists.infradead.org,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Min Guo <min.guo@mediatek.com>,
	devicetree@vger.kernel.org, linux-usb@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Sungbo Eo <mans0n@gorani.run>
Subject: Aw: [PATCH 0/2] Add MUSB for MT7623
Date: Tue, 3 Aug 2021 19:15:48 +0200	[thread overview]
Message-ID: <trinity-0f9449b8-5114-46e5-9a4f-00b62155a938-1628010948338@3c-app-gmx-bs54> (raw)
In-Reply-To: <20210803151320.71531-1-mans0n@gorani.run>

Hi,

> Gesendet: Dienstag, 03. August 2021 um 17:13 Uhr
> Von: "Sungbo Eo" <mans0n@gorani.run>
> An: linux-mediatek@lists.infradead.org
> Cc: "Chunfeng Yun" <chunfeng.yun@mediatek.com>, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Rob Herring" <robh+dt@kernel.org>, "Matthias Brugger" <matthias.bgg@gmail.com>, "Min Guo" <min.guo@mediatek.com>, "Frank Wunderlich" <frank-w@public-files.de>, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, "Sungbo Eo" <mans0n@gorani.run>
> Betreff: [PATCH 0/2] Add MUSB for MT7623
>
> These patches add support for the MUSB controller on Mediatek MT7623.
> Tested on Mercury RUSH-318AC Wi-Fi router.
>
> I got to know this from a BPI-R2 forum post [1], and managed to make it work on OpenWrt snapshot.
> I'd like to know if this also works on BPI-R2, I can happily share the details if needed.
> And I've just copy & pasted nodes from mt2701, please let me know if I missed some big differences between SoCs...
>
> [1] http://forum.banana-pi.org/t/bpi-r2-otg-port/10551

thanks for working on it. do both otg-roles (host/client) work on your device?

unfortunately at least host-mode does not work (do not know how to test client mode). i guess because iddig and vusb nodes are missing.

i took your Patchset and enabled the usb-node for bpi-r2.

+&usb3 {
+       status = "okay";
+};

and added these config-symbols:

+CONFIG_USB_CONN_GPIO=y
+CONFIG_USB_MUSB_HDRC=y
+CONFIG_USB_MUSB_MEDIATEK=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_CONFIGFS=y
+#CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+#CONFIG_PHY_MTK_TPHY=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_MUSB_DUAL_ROLE=y
+CONFIG_USB_INVENTRA_DMA=y

btw. imho otg-node should be named usb0 as other dts (kernel 4.4) also use usb0, else i think it's confusing.

in my last attempt i had these below usb-node in boards devicetree:

+       usb_vbus: regulator@0 {
+               compatible = "regulator-fixed";
+               regulator-name = "usb_vbus";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               gpio = <&pio 237 GPIO_ACTIVE_HIGH>;
+               enable-active-high;
+       };
+
+       connector{
+               compatible = "gpio-usb-b-connector", "usb-b-connector";
+               type = "micro";
+               id-gpios = <&pio 44 GPIO_ACTIVE_HIGH>;
+               vbus-supply = <&usb_vbus>;
+       };

after adding these i see the connection of otg-cable with usb-stick in dmesg:

[   53.656304] usb-conn-gpio 11200000.usb:connector: repeated rot
[   53.696324] usb-conn-gpio 11200000.usb:connector: repeated role: host

but usb-stick is not powered (led of the stick is off) and of course i see no mass-storage device.

and now i'm back on the traceback on power down i've reported Author of musb driver some time ago

[  156.785185] WARNING: CPU: 0 PID: 1 at drivers/power/reset/mt6323-poweroff.c:4
[  156.795156] Unable to power off system

[  156.884496] [<c0cca1ec>] (warn_slowpath_fmt) from [<c090562c>] (mt6323_do_pw)
[  156.893203]  r8:c3296d40 r7:00000024 r6:0ccccb60 r5:c10fe3d8 r4:00000000
[  156.900030] [<c09054b0>] (mt6323_do_pwroff) from [<c010ba68>] (machine_power)
[  156.908558]  r8:fee1dead r7:c1312590 r6:92f61d00 r5:00000000 r4:4321fedc
[  156.915385] [<c010ba34>] (machine_power_off) from [<c01524bc>] (kernel_power)

i guess it's related to the usb_vbus.

regards Frank


  parent reply	other threads:[~2021-08-03 17:16 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-03 15:13 Sungbo Eo
2021-08-03 15:13 ` [PATCH 1/2] dt-bindings: usb: mtk-musb: add MT7623 compatible Sungbo Eo
2021-08-04 15:01   ` Matthias Brugger
2021-08-03 15:13 ` [PATCH 2/2] arm: dts: mt7623: add musb device nodes Sungbo Eo
2021-08-03 17:15 ` Frank Wunderlich [this message]
2021-08-04  0:14   ` Aw: [PATCH 0/2] Add MUSB for MT7623 Sungbo Eo
2021-08-04  8:11     ` Aw: " Frank Wunderlich
2021-08-05  1:34       ` Sungbo Eo
2021-08-04 11:33     ` Frank Wunderlich
2021-08-04 15:01 ` Matthias Brugger
2021-08-05  1:36   ` Sungbo Eo
2021-08-08 12:38 ` [PATCH v2 " Sungbo Eo
2021-08-08 12:38   ` [PATCH v2 1/2] dt-bindings: usb: mtk-musb: add MT7623 compatible Sungbo Eo
2021-08-13 20:49     ` Rob Herring
2021-08-08 12:38   ` [PATCH v2 2/2] arm: dts: mt7623: add musb device nodes Sungbo Eo
2021-08-13 20:48     ` Rob Herring
2021-08-22  4:13   ` [PATCH v3 0/1] Add MUSB for MT7623 Sungbo Eo
2021-08-22  4:13     ` [PATCH v3 1/1] arm: dts: mt7623: add musb device nodes Sungbo Eo
2021-08-30 15:17       ` Aw: " Frank Wunderlich
2021-08-30 15:59     ` [PATCH v4 0/2] Add MUSB for MT7623 Sungbo Eo
2021-08-30 15:59       ` [PATCH v4 1/2] arm: dts: mt7623: add musb device nodes Sungbo Eo
2021-08-31  6:27         ` Chunfeng Yun (云春峰)
2021-08-31  8:59           ` Frank Wunderlich
2021-08-31 11:02             ` Sungbo Eo
2021-08-31 11:08               ` Aw: " Frank Wunderlich
2021-09-20 10:48         ` Aw: " Frank Wunderlich
2021-09-20 12:01         ` Matthias Brugger
2021-08-30 15:59       ` [PATCH v4 2/2] usb: musb: mediatek: Expose role-switch control to userspace Sungbo Eo
2021-08-31  6:15         ` Chunfeng Yun (云春峰)

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