[PATCH v5 0/3] reset: npcm: add NPCM reset driver support

Philipp Zabel p.zabel at pengutronix.de
Thu Nov 7 23:59:32 AEDT 2019


Hi Tomer,

On Wed, 2019-11-06 at 16:53 +0200, Tomer Maimon wrote:
> This patch set adds reset controller support 
> for the Nuvoton NPCM Baseboard Management Controller (BMC).
> 
> Apart of controlling all NPCM BMC reset module lines the NPCM reset driver
> support NPCM BMC software reset to restarting the NPCM BMC.
> 
> Supporting NPCM USB-PHY reset as follow:
> 
> NPCM BMC USB-PHY connected to two modules USB device (UDC) and USB host.
> 
> If we will restart the USB-PHY at the UDC probe and later the 
> USB host probe will restart USB-PHY again it will disable the UDC
> and vice versa.
> 
> The solution is to reset the USB-PHY at the reset probe stage before 
> the UDC and the USB host are initializing.
> 
> NPCM reset driver tested on NPCM750 evaluation board.
> 
> Addressed comments from:.
>  - Philipp Zabel
> 
> Changes since version 4:
>  - Check for stored GCR string in the of_device_id->data to gain
>    GCR regmap access. 
>  - Adding check if the user used undefined reset pins
>    in the of_xlate function.
>  - Remove nr_resets initialization since it of_xlate replaced 
>    with the custom version.

Thanks, all three applied to reset/next with Rob's R-b.

regards
Philipp



More information about the openbmc mailing list