diff options
| author | Fabrice Gasnier <fabrice.gasnier@foss.st.com> | 2021-10-25 17:17:50 +0200 |
|---|---|---|
| committer | Alexandre Torgue <alexandre.torgue@foss.st.com> | 2021-11-25 16:12:08 +0100 |
| commit | 28f645fc9424bf455528cb92bd6a7120281bca45 (patch) | |
| tree | cbdc2949adb3c4f6e55de6327497d36d96875ca1 /arch/arm/boot/dts/stm32mp157c-ev1.dts | |
| parent | 2312a6e7b301f43f02fb30b1dee932df5a87a7d0 (diff) | |
ARM: dts: stm32: tune the HS USB PHYs on stm32mp157c-ev1
This patch adds phy tuning parameters for usbphyc port0 (USBH controller)
and usbphyc port1 (OTG controller).
Phy tuning parameters are used to adjust the phy settings to compensate
parasitics, which can be due to USB receptacle, routing, and ESD protection
component.
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Diffstat (limited to 'arch/arm/boot/dts/stm32mp157c-ev1.dts')
| -rw-r--r-- | arch/arm/boot/dts/stm32mp157c-ev1.dts | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts index 5c5b1ddf7bfd..e222d2d2cb44 100644 --- a/arch/arm/boot/dts/stm32mp157c-ev1.dts +++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts @@ -375,3 +375,25 @@ &usbphyc { status = "okay"; }; + +&usbphyc_port0 { + st,tune-hs-dc-level = <2>; + st,enable-fs-rftime-tuning; + st,enable-hs-rftime-reduction; + st,trim-hs-current = <15>; + st,trim-hs-impedance = <1>; + st,tune-squelch-level = <3>; + st,tune-hs-rx-offset = <2>; + st,no-lsfs-sc; +}; + +&usbphyc_port1 { + st,tune-hs-dc-level = <2>; + st,enable-fs-rftime-tuning; + st,enable-hs-rftime-reduction; + st,trim-hs-current = <15>; + st,trim-hs-impedance = <1>; + st,tune-squelch-level = <3>; + st,tune-hs-rx-offset = <2>; + st,no-lsfs-sc; +}; |