+ Sherry, Jun
Subject: Re: Upstreaming usb host drivers for iMX8/iMX8M
Hi Peng,
On Thu, Jun 27, 2019 at 8:32 AM Peng Fan peng.fan@nxp.com wrote:
Hi Igor,
Subject: Upstreaming usb host drivers for iMX8/iMX8M
Hi Peng, Ye, Peter,
Currently there in no any usb host/gadget support in the mainline U-boot, and seems that no one has posted anything yet to the mailing list (at least I haven't found anything related to this in the ML archives).
I've spent some time testing (usb host, ums etc.) the one in the downstream NXP U-boot (I'm still not sure where is the official NXP downstream rep, because there are no any updates in [1] for the last two years, so I looked into [2], [3]), and just curious if there any plans to get it upstreamed in the near future?
In NXP downstream, there is work to migrate the i.MX8 usb/gadget to DM. When that ready, the patches will be posted to community.
So do you need any help with this?
I am not working on that. But I welcome any contribution to make more features supported in upstream.
Won't you mind if we start up-streaming at
least xhci-imx8.c, which is used in both our SoMs Apalis iMX8 and Colibri iMX8QXP. Based on what I've seen in [1], the initial conversion to DM_USB is already done. Is there anything else that is expected to be changed in xhci-imx8.c (by asking this I just want to avoid duplicating the effort)?
Sherry, Jun has some work on the driver. So they might have comments to avoid duplicating efforts, in case they has plan recently.
Regards, Peng.
Frankly, this is currently a kind of showstopper for us, as it adds some complications for the next release of our BSP (we would like to enable usb host/gadget support or iMX8-based SoMS, including all dependent features like fastboot/usb storage/ums etc.), where we made a decision to move towards the usage of the mainline U-boot (with the minimal divergence and minimal amount of legacy downstream patches on top of it).
Regards, Peng.
Thanks and looking forward to your reply!
[1] http://git.free
scale.com%2Fgit%2Fcgit.cgi%2Fimx%2Fuboot-imx.git&data=02%7C01%
7Cpeng.fan%40nxp.com%7Ccb5c23c8a4764b489d6308d6fa32e9cf%7C686ea
1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C636971493909583933&
sdata=HcUVX2n%2BdzUNtkuF%2BC4IoFRuMtZpZpJvBpwoqk20Lrk%3D&
reserved=0 [2] https://source .codeaurora.org%2Fexternal%2Fimx%2Fuboot-imx%2Ftree%2Fdrivers%2F
usb
%2Fhost%2Fxhci-imx8m.c%3Fh%3Dimx_v2017.03_4.9.88_imx8qxp_beta
2&a
mp;data=02%7C01%7Cpeng.fan%40nxp.com%7Ccb5c23c8a4764b489d6308d
6fa32e9cf%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C6369714
93909583933&sdata=Dvp5XlU8Zcj9wJJ2cvD8taPCbitVKVjpGyyFHonTF%
2Bs%3D&reserved=0 [3] https://source .codeaurora.org%2Fexternal%2Fimx%2Fuboot-imx%2Ftree%2Fdrivers%2F
usb
%2Fhost%2Fxhci-imx8.c%3Fh%3Dimx_v2017.03_4.9.88_imx8qxp_beta2
&am
p;data=02%7C01%7Cpeng.fan%40nxp.com%7Ccb5c23c8a4764b489d6308d6f
a32e9cf%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63697149
3909583933&sdata=v5%2FiQYxvpLLPjj5QcHQ8dC8RfoFkNVfMbKQ79rW
wV4c%3D&reserved=0
-- Best regards - Freundliche Grüsse - Meilleures salutations
Igor Opaniuk
mailto: igor.opaniuk@gmail.com skype: igor.opanyuk +380 (93) 836 40 67 http://ua.linke
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1635%7C0%7C0%7C636971493909583933&sdata=gwm7kV8EAYWThz3
%2FtbvYc9ahqla2OkcR83MRmY5DK%2FI%3D&reserved=0
[1] https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsource .codeaurora.org%2Fexternal%2Fimx%2Fuboot-imx%2Ftree%2Fdrivers%2Fusb %2Fhost%2Fxhci-imx8.c%3Fh%3Dimx_v2018.03_4.14.98_2.0.0_ga&dat a=02%7C01%7Cpeng.fan%40nxp.com%7C90eb5afad5b64cf5cf6508d6fae4b7 df%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C6369722575870 57999&sdata=Mx4L36CP4BhQ4%2FwKMmuVxhAU4DwruU7BmMBNsJ3 HTxI%3D&reserved=0
Thanks!
-- Best regards - Freundliche Grüsse - Meilleures salutations
Igor Opaniuk
mailto: igor.opaniuk@gmail.com skype: igor.opanyuk +380 (93) 836 40 67 https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fua.linke din.com%2Fin%2Fiopaniuk&data=02%7C01%7Cpeng.fan%40nxp.com%7 C90eb5afad5b64cf5cf6508d6fae4b7df%7C686ea1d3bc2b4c6fa92cd99c5c301 635%7C0%7C0%7C636972257587057999&sdata=q1vfYLbOx5FRqz9CV6 ue0rWAb59pa%2FgNUnjQd2fTQwg%3D&reserved=0