| Message ID | 20260529153159.3944049-1-dario.binacchi@amarulasolutions.com |
|---|---|
| State | New |
| Headers | show |
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| Related | show |
On 5/29/26 17:31, Dario Binacchi wrote: > The STM32MP157F-DK2 board is a direct derivative of the STM32MP157C-DK2. > As explained by ST [1], the "STM32MP157F-DK2 is assembled with latest > STM32MP15 RevZ cut which is the only one available for new product now. > The major differences in this 'F' variant SoC are the increased max > frequency of the Cortex-A7 cores and the correction of some HW bugs > (Device Rev.Z, see errata ES0438)". > > On the software/architecture side, this variant utilizes SCMI (System > Control and Management Interface) for secure world resource management. > As a consequence, the underlying stm32mp15-scmi.dtsi explicitly deletes > several fixed clock nodes (such as clk_hse, clk_hsi, clk_lse, clk_lsi, > and clk_csi), making it impossible to include stm32mp157c-dk2-u-boot.dtsi > without triggering compilation errors due to these missing clock labels. > > So let's introduce a dedicated stm32mp157f-dk2-u-boot.dtsi that directly > defines the fwu-mdata node. This provides the necessary FWU metadata > configuration required to allow automatic A/B bank selection, supported > for STM32MP15 boards by commit 560d8f32703f ("board: st: stm32mp15: > support dynamic A/B bank bootup"). > > [1] https://community.st.com/t5/stm32-mpus-products-and-hardware/i-m-wondering-what-s-the-difference-point-between-stm32mp157c/td-p/213460 > Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> > > --- > > Changes in v2: > - Drop the inclusion of stm32mp157c-dk2-u-boot.dtsi to avoid compilation > errors caused by deleted clock nodes in stm32mp15-scmi.dtsi. > - Directly define the fwu-mdata node in stm32mp157f-dk2-u-boot.dtsi to > properly support automatic A/B bank selection. > > arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi | 11 +++++++++++ > 1 file changed, 11 insertions(+) > create mode 100644 arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi > > diff --git a/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi b/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi > new file mode 100644 > index 000000000000..77805417bfa9 > --- /dev/null > +++ b/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi > @@ -0,0 +1,11 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Copyright (C) 2026 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com> > + */ > + > +/ { > + fwu-mdata { > + compatible = "u-boot,fwu-mdata-gpt"; > + fwu-mdata-store = <&sdmmc1>; > + }; > +}; Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> Thanks Patrice To unsubscribe from this group and stop receiving emails from it, send an email to linux-amarula+unsubscribe@amarulasolutions.com.
diff --git a/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi b/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi new file mode 100644 index 000000000000..77805417bfa9 --- /dev/null +++ b/arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2026 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com> + */ + +/ { + fwu-mdata { + compatible = "u-boot,fwu-mdata-gpt"; + fwu-mdata-store = <&sdmmc1>; + }; +};
The STM32MP157F-DK2 board is a direct derivative of the STM32MP157C-DK2. As explained by ST [1], the "STM32MP157F-DK2 is assembled with latest STM32MP15 RevZ cut which is the only one available for new product now. The major differences in this 'F' variant SoC are the increased max frequency of the Cortex-A7 cores and the correction of some HW bugs (Device Rev.Z, see errata ES0438)". On the software/architecture side, this variant utilizes SCMI (System Control and Management Interface) for secure world resource management. As a consequence, the underlying stm32mp15-scmi.dtsi explicitly deletes several fixed clock nodes (such as clk_hse, clk_hsi, clk_lse, clk_lsi, and clk_csi), making it impossible to include stm32mp157c-dk2-u-boot.dtsi without triggering compilation errors due to these missing clock labels. So let's introduce a dedicated stm32mp157f-dk2-u-boot.dtsi that directly defines the fwu-mdata node. This provides the necessary FWU metadata configuration required to allow automatic A/B bank selection, supported for STM32MP15 boards by commit 560d8f32703f ("board: st: stm32mp15: support dynamic A/B bank bootup"). [1] https://community.st.com/t5/stm32-mpus-products-and-hardware/i-m-wondering-what-s-the-difference-point-between-stm32mp157c/td-p/213460 Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> --- Changes in v2: - Drop the inclusion of stm32mp157c-dk2-u-boot.dtsi to avoid compilation errors caused by deleted clock nodes in stm32mp15-scmi.dtsi. - Directly define the fwu-mdata node in stm32mp157f-dk2-u-boot.dtsi to properly support automatic A/B bank selection. arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 arch/arm/dts/stm32mp157f-dk2-u-boot.dtsi