[PATCH v2 0/8] ARM: STM32: add art-pi(stm32h750xbh6) board support

dillon.minfei
2021-03-12T06:25:28Z

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

changes in v2:
- reorganize the pinctrl device tree about stm32h7-pinctrl/stm32h743/750-pinctrl
stm32h7-pinctrl.dtsi --> stm32h743-pinctrl.dtsi --> stm32h743i-disco.dts
| |-> stm32h743i-eval.dts
|-> stm32h750-pinctrl.dtsi --> stm32h750i-art-pi.dts
same to the stm32f7/f4's pinctrl style
- fix author name/copyright mistake
- add compatible string st,stm32h750-pinctrl to pinctl-stm32h743.c as they
have same pin alternate functions, update Kconfig description
- make item in stm32h750i-art-pi.dts sort by letter

dillon min (8):
Documentation: arm: stm32: Add stm32h750 value line doc
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 stm32h750
ARM: dts: stm32: add stm32h750-pinctrl.dtsi
ARM: dts: stm32: add support for art-pi board based on stm32h750xbh6
ARM: stm32: Add a new SOC - STM32H750
pinctrl: stm32: Add STM32H750 MCU pinctrl support

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 | 228 ++++++++++++
arch/arm/mach-stm32/board-dt.c | 1 +
drivers/pinctrl/stm32/Kconfig | 2 +-
drivers/pinctrl/stm32/pinctrl-stm32h743.c | 3 +
14 files changed, 717 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

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