[PATCH v2 07/12] reset: uniphier: Add USB glue reset support
hayashi.kunihiko at socionext.com
Thu Feb 2 06:38:04 CET 2023
On 2023/02/02 6:51, Marek Vasut wrote:
> On 2/1/23 02:13, Kunihiko Hayashi wrote:
>> Add reset control support in USB glue logic. This needs to control
>> the external clocks and resets for the logic before accessing the
>> glue logic.
>> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko at socionext.com>
> With the very little knowledge I have of this platform:
> Reviewed-by: Marek Vasut <marex at denx.de>
I see. I should make some explanation.
The dm tree for usb is the following.
+-- controller (need controller-reset)
+-- controller-reset (need syscon-reset)
The controller needs to deassert "controller-reset" in the glue.
The glue needs to deassert "syscon-reset".
The glue node itself doesn't have "resets" property, so
the controller-reset controls "syscon-reset" instead.
This patch adds the reset control for "controller-reset".
More information about the U-Boot