linux-kernel - Re: [PATCH v4 0/2] ARM: sun8i-r40: Enable usb otg support

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Message-ID: <12833b83-59a9-a808-4d62-60658df8d628@163.com>
Date:   Tue, 24 May 2022 17:15:40 +0800
From:   qianfan <qianfanguijin@....com>
To:     Icenowy Zheng <icenowy@...c.io>, linux-sunxi@...ts.linux.dev
Cc:     Andre Przywara <andre.przywara@....com>,
        Evgeny Boger <boger@...enboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/2] ARM: sun8i-r40: Enable usb otg support



在 2022/5/23 21:11, Icenowy Zheng 写道:
> 在 2022-05-18星期三的 18:17 +0800，qianfanguijin@....com写道：
>> From: qianfan Zhao <qianfanguijin@....com>
>>
>> History:
>> =======
>>
>> v4(2022-05-18):
>> - Enable both musb and OHCI/EHCI support
>>
>> Tests:
>> ======
>>
>> All test cases were tested on bananapi-m2-ultra.
>>
>> 1. USB DEVICE(ping test)
>>
>> Enable usb gadget rndis network, ping m2u on ubuntu host:
> Interestingly musb previous totally fail when I initially work on R40.
> Maybe some phy-sun4i-usb patches fixed it by accident?
Hi, could you please try this patch again?
>
>> ➜  ~ ping 192.168.200.2
>> PING 192.168.200.2 (192.168.200.2) 56(84) bytes of data.
>> 64 bytes from 192.168.200.2: icmp_seq=1 ttl=64 time=0.544 ms
>> 64 bytes from 192.168.200.2: icmp_seq=2 ttl=64 time=0.269 ms
>> 64 bytes from 192.168.200.2: icmp_seq=3 ttl=64 time=0.300 ms
>> 64 bytes from 192.168.200.2: icmp_seq=4 ttl=64 time=0.295 ms
>> 64 bytes from 192.168.200.2: icmp_seq=5 ttl=64 time=0.283 ms
>> 64 bytes from 192.168.200.2: icmp_seq=6 ttl=64 time=0.226 ms
>> 64 bytes from 192.168.200.2: icmp_seq=7 ttl=64 time=0.246 ms
>> 64 bytes from 192.168.200.2: icmp_seq=8 ttl=64 time=0.204 ms
>> 64 bytes from 192.168.200.2: icmp_seq=9 ttl=64 time=0.302 ms
>> 64 bytes from 192.168.200.2: icmp_seq=10 ttl=64 time=0.249 ms
>> 64 bytes from 192.168.200.2: icmp_seq=11 ttl=64 time=0.459 ms
>> 64 bytes from 192.168.200.2: icmp_seq=12 ttl=64 time=0.232 ms
>> 64 bytes from 192.168.200.2: icmp_seq=13 ttl=64 time=0.275 ms
>> 64 bytes from 192.168.200.2: icmp_seq=14 ttl=64 time=0.243 ms
>>
>> 2. USB HOST(OHCI)
>>
>> Connect an usb serial port on OTG port, nex t is the kernel log:
>>
>> [   27.824137] usb 2-1: new full-speed USB device number 2 using
>> ohci-platform
>> [   28.865504] cdc_acm 2-1:1.0: ttyACM0: USB ACM device
>> [   29.565509] cdc_acm 2-1:1.2: ttyACM1: USB ACM device
>>
>> 3. USB HOST(EHCI)
>>
>> Connect an usb storage on OTG port, next is the kernel log:
>>
>> [   17.754147] usb 1-1: new high-speed USB device number 2 using
>> ehci-platform
>> [   17.955995] usb-storage 1-1:1.0: USB Mass Storage device detected
>> [   18.024497] scsi host1: usb-storage 1-1:1.0
>> [   19.035091] scsi 1:0:0:0: Direct-Access     General  USB Flash
>> Disk   1.0  PQ: 0 ANSI: 2
>> [   19.049717] sd 1:0:0:0: [sda] 7831552 512-byte logical blocks:
>> (4.01 GB/3.73 GiB)
>> [   19.060873] sd 1:0:0:0: [sda] Write Protect is off
>> [   19.071018] sd 1:0:0:0: [sda] No Caching mode page found
>> [   19.076437] sd 1:0:0:0: [sda] Assuming drive cache: write through
>> [   19.093566]  sda: sda1
>> [   19.103492] sd 1:0:0:0: [sda] Attached SCSI removable disk
>>
>> issues:
>> =======
>>
>> The system power often turned off when I plugged an usb device into
>> the OTG port.
>> It's not clear why.
>>
>> qianfan Zhao (2):
>>    ARM: dts: sun8i-r40: Add USB0_OTG/HOST support
>>    ARM: dts: bananapi-m2-ultra: Enable USB0_OTG and HOST support
>>
>>   .../boot/dts/sun8i-r40-bananapi-m2-ultra.dts  | 39
>> +++++++++++++++++++
>>   arch/arm/boot/dts/sun8i-r40.dtsi              | 34 ++++++++++++++++
>>   2 files changed, 73 insertions(+)
>>