[PATCH v3 0/6] Add rt-thread art-pi board support

[dillon.minfei at gmail.com]

From: dillon min <dillon.minfei at gmail.com>

These patches aim to adds u-boot support on art-pi board.

the board resources:
- stm32h750xbh6 128k flash, 1024k sram
- 32MiB sdram
- 16MiB spi flash
- 8MiB qspi flash
- onboard wifi, bt, fm

the detail board information can be found at:
https://art-pi.gitee.io/website/

---
changes in v3:
two mirror changes in [PATCH v3 2/6], others same to version 2
- remove "for STMicroelectronics." from arch/arm/dts/stm32h750-pinctrl.dtsi
- correct misspelling parameters
you can found detail patch v2 information at link:
https://patchwork.ozlabs.org/project/uboot/list/?series=236009

changes in v2:
- fix wrong author/date in previous submit
- sync with kernel device tree files
- add st,stm32h750-pinctrl in doc and pinctrl driver


*** BLURB HERE ***

dillon min (6):
  ARM: dts: stm32: split sdram pin & timing parameter into specific
    board dts
  ARM: dts: stm32: Add RT-Thread art-pi board support
  board: Add rt-thread art-pi board support
  ram: stm32: fix strsep failed on read only memory
  dt-bindings: pinctrl: stm32: Add st,stm32h750-pinctrl for stm32h750
    soc
  pinctrl: stm32: Add st,stm32h750-pinctrl compatible string

 arch/arm/dts/Makefile                              |   3 +-
 arch/arm/dts/stm32h7-pinctrl.dtsi                  | 340 +++++++++++++++++++++
 arch/arm/dts/stm32h7-u-boot.dtsi                   | 100 +-----
 arch/arm/dts/stm32h743-pinctrl.dtsi                | 307 +------------------
 arch/arm/dts/stm32h743.dtsi                        | 168 +++++++++-
 arch/arm/dts/stm32h743i-disco-u-boot.dtsi          |  98 ++++++
 arch/arm/dts/stm32h743i-eval-u-boot.dtsi           |  98 ++++++
 arch/arm/dts/stm32h750-pinctrl.dtsi                |  11 +
 arch/arm/dts/stm32h750.dtsi                        |   5 +
 arch/arm/dts/stm32h750i-art-pi-u-boot.dtsi         |  81 +++++
 arch/arm/dts/stm32h750i-art-pi.dts                 | 188 ++++++++++++
 arch/arm/mach-stm32/stm32h7/Kconfig                |   4 +
 board/st/stm32h750-art-pi/Kconfig                  |  19 ++
 board/st/stm32h750-art-pi/MAINTAINERS              |   7 +
 board/st/stm32h750-art-pi/Makefile                 |   6 +
 board/st/stm32h750-art-pi/stm32h750-art-pi.c       |  58 ++++
 configs/stm32h750-art-pi_defconfig                 |  51 ++++
 .../pinctrl/st,stm32-pinctrl.txt                   |   1 +
 drivers/pinctrl/pinctrl_stm32.c                    |   1 +
 drivers/ram/stm32_sdram.c                          |   3 +
 include/configs/stm32h750-art-pi.h                 |  48 +++
 include/dt-bindings/memory/stm32-sdram.h           |   2 +
 22 files changed, 1198 insertions(+), 401 deletions(-)
 create mode 100644 arch/arm/dts/stm32h7-pinctrl.dtsi
 create mode 100644 arch/arm/dts/stm32h750-pinctrl.dtsi
 create mode 100644 arch/arm/dts/stm32h750.dtsi
 create mode 100644 arch/arm/dts/stm32h750i-art-pi-u-boot.dtsi
 create mode 100644 arch/arm/dts/stm32h750i-art-pi.dts
 create mode 100644 board/st/stm32h750-art-pi/Kconfig
 create mode 100644 board/st/stm32h750-art-pi/MAINTAINERS
 create mode 100644 board/st/stm32h750-art-pi/Makefile
 create mode 100644 board/st/stm32h750-art-pi/stm32h750-art-pi.c
 create mode 100644 configs/stm32h750-art-pi_defconfig
 create mode 100644 include/configs/stm32h750-art-pi.h

-- 
2.7.4