From: dillon min <dillon.minfei@xxxxxxxxx> This patchset intend to add art-pi board support, this board developed by rt-thread(https://www.rt-thread.org/). Board resources: 8MiB QSPI flash 16MiB SPI flash 32MiB SDRAM AP6212 wifi,bt,fm comb sw context: - as stm32h750 just has 128k bytes internal flash, so running a fw on internal flash to download u-boot/kernel to qspi flash, boot u-boot/kernel from qspi flash. this fw is based on rt-thread. - kernel can be xip on qspi flash or load to sdram - root filesystem is jffs2(created by buildroot), stored on spi flash to support the boad, add following changes. - fix r0-r3, r12 register restore failed after svc call, - add dts binding - update yaml doc dillon min (8): ARM: ARMv7-M: Fix register restore corrupt after svc call Documentation: arm: stm32: Add stm32h750 value line dt-bindings: arm: stm32: Add compatible strings for ART-PI board dt-bindings: pinctrl: stm32: Add stm32h750 pinctrl ARM: dts: stm32: introduce stm32h7-pinctrl.dtsi to support stm32h75x ARM: dts: stm32: add stm32h750-pinctrl.dtsi ARM: dts: stm32: add support for art-pi board based on stm32h750xbh6 ARM: stm32: add initial support for stm32h750 Documentation/arm/index.rst | 1 + Documentation/arm/stm32/stm32h750-overview.rst | 33 ++ .../devicetree/bindings/arm/stm32/stm32.yaml | 4 + .../bindings/pinctrl/st,stm32-pinctrl.yaml | 1 + arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/stm32h7-pinctrl.dtsi | 392 +++++++++++++++++++++ arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 307 +--------------- arch/arm/boot/dts/stm32h743.dtsi | 30 ++ arch/arm/boot/dts/stm32h750-pinctrl.dtsi | 11 + arch/arm/boot/dts/stm32h750.dtsi | 5 + arch/arm/boot/dts/stm32h750i-art-pi.dts | 227 ++++++++++++ arch/arm/mach-stm32/board-dt.c | 1 + arch/arm/mm/proc-v7m.S | 5 +- 13 files changed, 716 insertions(+), 302 deletions(-) create mode 100644 Documentation/arm/stm32/stm32h750-overview.rst create mode 100644 arch/arm/boot/dts/stm32h7-pinctrl.dtsi create mode 100644 arch/arm/boot/dts/stm32h750-pinctrl.dtsi create mode 100644 arch/arm/boot/dts/stm32h750.dtsi create mode 100644 arch/arm/boot/dts/stm32h750i-art-pi.dts -- 2.7.4
