Devicetree
 help / color / mirror / Atom feed
From: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
To: Matthias Kaehlcke <mka@chromium.org>,
	 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	 Benjamin Bara <benjamin.bara@skidata.com>,
	Rob Herring <robh@kernel.org>,
	 Krzysztof Kozlowski <krzk+dt@kernel.org>,
	 Conor Dooley <conor+dt@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	 Klaus Goger <klaus.goger@theobroma-systems.com>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	 devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	 linux-rockchip@lists.infradead.org,
	 Lukasz Czechowski <lukasz.czechowski@thaumatec.com>,
	 quentin.schulz@cherry.de
Subject: [PATCH 4/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma
Date: Wed, 26 Mar 2025 17:22:59 +0100	[thread overview]
Message-ID: <20250326-onboard_usb_dev-v1-4-a4b0a5d1b32c@thaumatec.com> (raw)
In-Reply-To: <20250326-onboard_usb_dev-v1-0-a4b0a5d1b32c@thaumatec.com>

From: Quentin Schulz <quentin.schulz@cherry.de>

The u2phy1_host port is the part of the USB PHY1 (namely the
HOST1_DP/DM lanes) which routes directly to the USB2.0 HOST
controller[1]. The other lanes of the PHY are routed to the USB3.0 OTG
controller (dwc3), which we do use.

The HOST1_DP/DM lanes aren't routed on RK3399 Puma so let's simply
disable the USB2.0 controllers and associated part in USB2.0 PHY.

No intended functional change.

[1] https://rockchip.fr/Rockchip%20RK3399%20TRM%20V1.3%20Part2.pdf
    Chapter 2 USB2.0 PHY
Fixes: 2c66fc34e945 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Lukasz Czechowski <lukasz.czechowski@thaumatec.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 3a9049372e12..d0d867374b3f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -579,10 +579,6 @@ &u2phy1 {
 	u2phy1_otg: otg-port {
 		status = "okay";
 	};
-
-	u2phy1_host: host-port {
-		status = "okay";
-	};
 };
 
 &usbdrd3_1 {
@@ -611,11 +607,3 @@ hub_3_0: hub@2 {
 		reset-gpios = <&gpio4 RK_PA3 GPIO_ACTIVE_HIGH>;
 	};
 };
-
-&usb_host1_ehci {
-	status = "okay";
-};
-
-&usb_host1_ohci {
-	status = "okay";
-};

-- 
2.43.0


  parent reply	other threads:[~2025-03-26 16:23 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-26 16:22 [PATCH 0/5] Fix onboard USB hub instability on RK3399 Puma SoM Lukasz Czechowski
2025-03-26 16:22 ` [PATCH 1/5] usb: misc: onboard_usb_dev: fix support for Cypress HX3 hubs Lukasz Czechowski
2025-03-28  8:19   ` Krzysztof Kozlowski
2025-03-26 16:22 ` [PATCH 2/5] dt-bindings: usb: cypress,hx3: Add support for all variants Lukasz Czechowski
2025-03-26 17:58   ` Conor Dooley
2025-04-08 16:36     ` Łukasz Czechowski
2025-04-09 16:18       ` Conor Dooley
2025-04-09 16:26         ` Quentin Schulz
2025-04-09 21:27           ` Conor Dooley
2025-04-10  9:37             ` Quentin Schulz
2025-04-09 14:14     ` Rob Herring (Arm)
2025-03-26 16:22 ` [PATCH 3/5] arm64: dts: rockchip: fix internal USB hub instability on RK3399 Puma Lukasz Czechowski
2025-03-26 16:22 ` Lukasz Czechowski [this message]
2025-03-26 16:23 ` [PATCH 5/5] arm64: dts: rockchip: disable unrouted USB controllers and PHY on RK3399 Puma with Haikou Lukasz Czechowski
2025-03-26 19:11 ` [PATCH 0/5] Fix onboard USB hub instability on RK3399 Puma SoM Rob Herring (Arm)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20250326-onboard_usb_dev-v1-4-a4b0a5d1b32c@thaumatec.com \
    --to=lukasz.czechowski@thaumatec.com \
    --cc=benjamin.bara@skidata.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=heiko@sntech.de \
    --cc=klaus.goger@theobroma-systems.com \
    --cc=krzk+dt@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-rockchip@lists.infradead.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=mka@chromium.org \
    --cc=quentin.schulz@cherry.de \
    --cc=robh@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox