|
 |
b98ae2e |
From patchwork Thu Jan 18 12:34:18 2018
|
|
|
b98ae2e |
Content-Type: text/plain; charset="utf-8"
|
|
|
b98ae2e |
MIME-Version: 1.0
|
|
|
b98ae2e |
Content-Transfer-Encoding: 7bit
|
|
|
b98ae2e |
Subject: ARM: dts: imx6qdl-udoo: Disable usbh1 to avoid kernel hang
|
|
|
b98ae2e |
From: Fabio Estevam <fabio.estevam@nxp.com>
|
|
|
b98ae2e |
X-Patchwork-Id: 10173115
|
|
|
b98ae2e |
Message-Id: <1516278858-15464-1-git-send-email-fabio.estevam@nxp.com>
|
|
|
b98ae2e |
To: <shawnguo@kernel.org>
|
|
|
b98ae2e |
Cc: maggu2810@gmail.com, peter.chen@nxp.com, mail@maciej.szmigiero.name,
|
|
|
b98ae2e |
Fabio Estevam <fabio.estevam@nxp.com>, linux-arm-kernel@lists.infradead.org
|
|
|
b98ae2e |
Date: Thu, 18 Jan 2018 10:34:18 -0200
|
|
|
b98ae2e |
|
|
|
b98ae2e |
Currently the kernel hangs when USB Host1 is enabled due to the lack of
|
|
|
b98ae2e |
support for controlling the USB hub clock and GPIO reset line.
|
|
|
b98ae2e |
|
|
|
b98ae2e |
Peter Chen has made several attempts to fix this problem, but his series
|
|
|
b98ae2e |
has not been applied yet, so better disable USB host1 for now to avoid
|
|
|
b98ae2e |
the kernel hang.
|
|
|
b98ae2e |
|
|
|
b98ae2e |
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
|
|
|
b98ae2e |
Acked-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
|
|
|
b98ae2e |
Tested-by: Markus Rathgeb <maggu2810@gmail.com>
|
|
|
b98ae2e |
---
|
|
|
b98ae2e |
arch/arm/boot/dts/imx6qdl-udoo.dtsi | 3 ++-
|
|
|
b98ae2e |
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
b98ae2e |
|
|
|
b98ae2e |
diff --git a/arch/arm/boot/dts/imx6qdl-udoo.dtsi b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
|
|
|
b98ae2e |
index 4161b7d..1f0b9f6 100644
|
|
|
b98ae2e |
--- a/arch/arm/boot/dts/imx6qdl-udoo.dtsi
|
|
|
b98ae2e |
+++ b/arch/arm/boot/dts/imx6qdl-udoo.dtsi
|
|
|
b98ae2e |
@@ -274,7 +274,8 @@
|
|
|
b98ae2e |
pinctrl-0 = <&pinctrl_usbh>;
|
|
|
b98ae2e |
vbus-supply = <®_usb_h1_vbus>;
|
|
|
b98ae2e |
clocks = <&clks IMX6QDL_CLK_CKO>;
|
|
|
b98ae2e |
- status = "okay";
|
|
|
b98ae2e |
+ /* currently USB support causes a kernel hang. Disable it for now */
|
|
|
b98ae2e |
+ status = "disabled";
|
|
|
b98ae2e |
};
|
|
|
b98ae2e |
|
|
|
b98ae2e |
&usdhc3 {
|