| Message ID | 20200706144753.1.I1f502be5d9d0197f53e8075a283a102e05817c2b@changeid |
|---|---|
| State | Superseded |
| Headers | show |
| Series | ARM: dts: stm32: add reset support to uart nodes on stm32mp15x | expand |
On 7/6/20 2:48 PM, Patrick Delaunay wrote: > STM32 serial IP can be reset via reset controller. > Add the support of reset to uart nodes on stm32mp15-u-boot.dtsi, > the ad-dons file for U-Boot. > > This patch fix issues when previous UART configuration, for example > done in TF-A or ROM code, is not handled in U-Boot stm32 serial driver > init. > > This reset property won't be not added in Linux kernel device tree > as this reset is not used in Linux STM32 serial driver. > > Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> > --- > > arch/arm/dts/stm32mp15-u-boot.dtsi | 32 ++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/arm/dts/stm32mp15-u-boot.dtsi b/arch/arm/dts/stm32mp15-u-boot.dtsi > index 142ad25c43..c463b49dda 100644 > --- a/arch/arm/dts/stm32mp15-u-boot.dtsi > +++ b/arch/arm/dts/stm32mp15-u-boot.dtsi > @@ -179,6 +179,38 @@ > compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell"; > }; > > +&usart1 { > + resets = <&rcc USART1_R>; > +}; > + > +&usart2 { > + resets = <&rcc USART2_R>; > +}; > + > +&usart3 { > + resets = <&rcc USART3_R>; > +}; > + > +&uart4 { > + resets = <&rcc UART4_R>; > +}; > + > +&uart5 { > + resets = <&rcc UART5_R>; > +}; > + > +&usart6 { > + resets = <&rcc USART6_R>; > +}; > + > +&uart7 { > + resets = <&rcc UART7_R>; > +}; > + > +&uart8{ > + resets = <&rcc UART8_R>; > +}; > + > &usbotg_hs { > compatible = "st,stm32mp1-hsotg", "snps,dwc2"; > }; Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Thanks Patrice
On 7/28/20 4:12 PM, Patrice CHOTARD wrote: > On 7/6/20 2:48 PM, Patrick Delaunay wrote: >> STM32 serial IP can be reset via reset controller. >> Add the support of reset to uart nodes on stm32mp15-u-boot.dtsi, >> the ad-dons file for U-Boot. >> >> This patch fix issues when previous UART configuration, for example >> done in TF-A or ROM code, is not handled in U-Boot stm32 serial driver >> init. >> >> This reset property won't be not added in Linux kernel device tree >> as this reset is not used in Linux STM32 serial driver. >> >> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> >> --- >> >> arch/arm/dts/stm32mp15-u-boot.dtsi | 32 ++++++++++++++++++++++++++++++ >> 1 file changed, 32 insertions(+) >> >> diff --git a/arch/arm/dts/stm32mp15-u-boot.dtsi b/arch/arm/dts/stm32mp15-u-boot.dtsi >> index 142ad25c43..c463b49dda 100644 >> --- a/arch/arm/dts/stm32mp15-u-boot.dtsi >> +++ b/arch/arm/dts/stm32mp15-u-boot.dtsi >> @@ -179,6 +179,38 @@ >> compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell"; >> }; >> >> +&usart1 { >> + resets = <&rcc USART1_R>; >> +}; >> + >> +&usart2 { >> + resets = <&rcc USART2_R>; >> +}; >> + >> +&usart3 { >> + resets = <&rcc USART3_R>; >> +}; >> + >> +&uart4 { >> + resets = <&rcc UART4_R>; >> +}; >> + >> +&uart5 { >> + resets = <&rcc UART5_R>; >> +}; >> + >> +&usart6 { >> + resets = <&rcc USART6_R>; >> +}; >> + >> +&uart7 { >> + resets = <&rcc UART7_R>; >> +}; >> + >> +&uart8{ >> + resets = <&rcc UART8_R>; >> +}; >> + >> &usbotg_hs { >> compatible = "st,stm32mp1-hsotg", "snps,dwc2"; >> }; > Reviewed-by: Patrice Chotard <patrice.chotard@st.com> > > Thanks > > Patrice > _______________________________________________ > Uboot-stm32 mailing list > Uboot-stm32@st-md-mailman.stormreply.com > https://st-md-mailman.stormreply.com/mailman/listinfo/uboot-stm32 Applied to u-boot-stm/master Thanks Patrice
diff --git a/arch/arm/dts/stm32mp15-u-boot.dtsi b/arch/arm/dts/stm32mp15-u-boot.dtsi index 142ad25c43..c463b49dda 100644 --- a/arch/arm/dts/stm32mp15-u-boot.dtsi +++ b/arch/arm/dts/stm32mp15-u-boot.dtsi @@ -179,6 +179,38 @@ compatible = "st,stm32-sdmmc2", "arm,pl18x", "arm,primecell"; }; +&usart1 { + resets = <&rcc USART1_R>; +}; + +&usart2 { + resets = <&rcc USART2_R>; +}; + +&usart3 { + resets = <&rcc USART3_R>; +}; + +&uart4 { + resets = <&rcc UART4_R>; +}; + +&uart5 { + resets = <&rcc UART5_R>; +}; + +&usart6 { + resets = <&rcc USART6_R>; +}; + +&uart7 { + resets = <&rcc UART7_R>; +}; + +&uart8{ + resets = <&rcc UART8_R>; +}; + &usbotg_hs { compatible = "st,stm32mp1-hsotg", "snps,dwc2"; };
STM32 serial IP can be reset via reset controller. Add the support of reset to uart nodes on stm32mp15-u-boot.dtsi, the ad-dons file for U-Boot. This patch fix issues when previous UART configuration, for example done in TF-A or ROM code, is not handled in U-Boot stm32 serial driver init. This reset property won't be not added in Linux kernel device tree as this reset is not used in Linux STM32 serial driver. Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com> --- arch/arm/dts/stm32mp15-u-boot.dtsi | 32 ++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)