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Re: [PATCH v3 0/5] Wire up USB controllers in i.MX6 emulations


From: Peter Maydell
Subject: Re: [PATCH v3 0/5] Wire up USB controllers in i.MX6 emulations
Date: Fri, 13 Mar 2020 11:25:56 +0000

On Fri, 13 Mar 2020 at 01:45, Guenter Roeck <address@hidden> wrote:
>
> This patch series wires up the USB controllers on fsl-imx6 and fsl-imx6ul
> emulations.
>
> The first patch provides a basic implementation of the USB PHY controller
> used in i.MX28 and later chips. Only reset bit handling in the control
> register is actually implemented. Basic USB PHY support is needed to make
> the USB ports operational in Linux.
>
> The second patch fixes USB and USB PHY interrupt numbers for i.MX6UL.
>
> The third patch instantiates unimplemented pwm and can devices. This patch
> is necessary to avoid crashes in Linux when it tries to access those
> devices. The crashes are observed when trying to boot Linux v4.21 or later.
>
> The final two patches instantiate the USB controllers for i.mMX6 and
> i.MX6UL.
>
> v3:
> - Minor cleanup in patch 1/5 (see details in patch)
> - Added patch to fix USB and USB PHY interrupt numbers for fsl-imx6ul.
> - Added patch to instantiate unimplemented pwm and CAN devices.
> - Instantiate USB and USB PHY separately. They are logically different,
>   and the number of instances is not always the same.
>
> v2:
> - Implement and instantiate basic USB PHY implementation
>   instead of emulating a single USB PHY register



Applied to target-arm.next, thanks.

-- PMM



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