linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
* [PATCH 1/2] ARM: dts: imx6sx-sdb: update TX D_CAL for USBPHY
@ 2016-10-31  2:58 Peter Chen
  2016-10-31  2:58 ` [PATCH 2/2] ARM: dts: imx6ul-14x14-evk: " Peter Chen
  2016-11-05  8:31 ` [PATCH 1/2] ARM: dts: imx6sx-sdb: " Shawn Guo
  0 siblings, 2 replies; 5+ messages in thread
From: Peter Chen @ 2016-10-31  2:58 UTC (permalink / raw)
  To: linux-arm-kernel

We need to change trimming value (as a percentage) of the 17.78mA TX
reference current for better signal quality. With this change, we
can patch the eye-diagram test on this board.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
 arch/arm/boot/dts/imx6sx-sdb.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sx-sdb.dtsi b/arch/arm/boot/dts/imx6sx-sdb.dtsi
index 85f56a5..4933c56 100644
--- a/arch/arm/boot/dts/imx6sx-sdb.dtsi
+++ b/arch/arm/boot/dts/imx6sx-sdb.dtsi
@@ -317,6 +317,14 @@
 	status = "okay";
 };
 
+&usbphy1 {
+	fsl,tx-d-cal = <106>;
+};
+
+&usbphy2 {
+	fsl,tx-d-cal = <106>;
+};
+
 &usdhc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc2>;
-- 
2.7.4

^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2016-11-07  2:06 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-10-31  2:58 [PATCH 1/2] ARM: dts: imx6sx-sdb: update TX D_CAL for USBPHY Peter Chen
2016-10-31  2:58 ` [PATCH 2/2] ARM: dts: imx6ul-14x14-evk: " Peter Chen
2016-11-05  8:31 ` [PATCH 1/2] ARM: dts: imx6sx-sdb: " Shawn Guo
2016-11-07  1:32   ` Peter Chen
2016-11-07  2:06     ` Shawn Guo

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).