diff options
| author | Fabrice Gasnier <fabrice.gasnier@foss.st.com> | 2023-04-14 11:41:37 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-20 11:17:06 +0300 |
| commit | 21d018b75f4f1c183be565d302fde7a01ae79fb0 (patch) | |
| tree | 7de25e36467eb3fb0fa16d71713c78db1db966ee /arch/arm/boot | |
| parent | 02329adeae1f92b0133cfc1a2b06645f4c496c1b (diff) | |
| download | linux-21d018b75f4f1c183be565d302fde7a01ae79fb0.tar.xz | |
ARM: dts: stm32: add USB OTG UTMI clock on stm32mp151
It's needed on STM32MP15, when using the integrated full-speed PHY. This
clock is an output of USBPHYC, and the HS USBPHYC is not attached as PHY
in this case (managed directly by dwc2 ggpio glue):
&usbotg_hs {
compatible = "st,stm32mp15-fsotg", "snps,dwc2";
pinctrl-names = "default";
pinctrl-0 = <&usbotg_hs_pins_a &usbotg_fs_dp_dm_pins_a>;
vbus-supply = <&vbus_otg>;
status = "okay";
};
USBPHYC clock output must be used, so it can be properly enabled as a
clock provider.
Without this, currently, when the dualport High-Speed USBPHYC isn't
requested by either USBH or OTG, it remains uninitialized when probing
OTG: OTG configured with full-speed PHY isn't properly clocked, resulting
in error log like:
[ 2.383138] dwc2 49000000.usb-otg: dwc2_core_reset: HANG! Soft Reset
timeout GRSTCTL_CSFTRST.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20230414084137.1050487-5-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/boot')
| -rw-r--r-- | arch/arm/boot/dts/stm32mp151.dtsi | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/stm32mp151.dtsi b/arch/arm/boot/dts/stm32mp151.dtsi index 4e437d3f2ed6..63f4c78fcc1d 100644 --- a/arch/arm/boot/dts/stm32mp151.dtsi +++ b/arch/arm/boot/dts/stm32mp151.dtsi @@ -1130,8 +1130,8 @@ usbotg_hs: usb-otg@49000000 { compatible = "st,stm32mp15-hsotg", "snps,dwc2"; reg = <0x49000000 0x10000>; - clocks = <&rcc USBO_K>; - clock-names = "otg"; + clocks = <&rcc USBO_K>, <&usbphyc>; + clock-names = "otg", "utmi"; resets = <&rcc USBO_R>; reset-names = "dwc2"; interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>; |