[PATCH v4 0/7] Add SE HMBSC board support

[Sumit Garg]

SE HMIBSC board is based on Qcom APQ8016 SoC. One of the major
difference from db410c is serial port where HMIBSC board uses UART1 as
the debug console with an RS232 port, patch #2 - #5 adds corresponding
driver support.

Patch #6 adds main HMIBSC board specific bits, features:
- Qualcomm Snapdragon 410C SoC - APQ8016 (4xCortex A53, Adreno 306)
- 2GiB RAM
- 64GiB eMMC, SD slot
- WiFi and Bluetooth
- 2x Host, 1x Device USB port
- HDMI
- Discrete TPM2 chip over SPI

Features enabled in U-Boot:
- RAUC updates (refer [2] for more details)
- Environment protection
- USB based ethernet adaptors

Feedback is very much welcome.

Changes in v4:
- Rebased on top of qcom-main [4].
- Split out board DTS patch as #6.
- Convert to text based environment as hmibsc.env.
- MMC regression has been reported for qcom-main branch here [5].
- Collected further review tag.

Changes in v3:
- Rebased on top of qcom-next [1].
- Collected some review tags.
- Incorporated misc. comments from Caleb and Stephen.
- Split patch#4 as requested.
- Linux HMIBSC board DTS has already been reviewed here [3], I have
  incorporated that for U-Boot too.

Changes in v2:
- Rebased on top on qcom-next [1].
- Added patch#1 as a fix for generic qcom board support.
- Added patch#4 to enable driving GPIO pins based on pinctrl
  configuration. This replaces the custom GPIO configuration.
- Added proper DTS file for HMIBSC board based on Linux DT pattern.
- Merged board support patches into a single patch#5.

[1] https://source.denx.de/u-boot/custodians/u-boot-snapdragon/-/commits/qcom-next?ref_type=heads
[2] https://rauc.readthedocs.io/en/latest/
[3] https://lore.kernel.org/linux-kernel/20240403043416.3800259-4-sumit.garg@linaro.org/
[4] https://source.denx.de/u-boot/custodians/u-boot-snapdragon/-/commits/qcom-main/?ref_type=heads
[5] https://lore.kernel.org/all/CAFA6WYO+3VroUdFUVH390taViQX8pMQrOQDTSn0yU6BD5YY53A@mail.gmail.com/

Sumit Garg (7):
  qcom: Don't enable LINUX_KERNEL_IMAGE_HEADER by default
  apq8016: Add support for UART1 clocks and pinmux
  serial_msm: Enable RS232 flow control
  pinctrl: qcom: Add support for driving GPIO pins output
  pinctrl: qcom: apq8016: Add GPIO pinctrl function
  arm: dts: qcom: Add Schneider HMIBSC board dts
  board: add support for Schneider HMIBSC board

 arch/arm/Kconfig                          |   2 +-
 arch/arm/dts/apq8016-schneider-hmibsc.dts | 491 ++++++++++++++++++++++
 board/schneider/hmibsc/MAINTAINERS        |   6 +
 board/schneider/hmibsc/hmibsc.env         |  40 ++
 configs/hmibsc_defconfig                  |  87 ++++
 doc/board/index.rst                       |   1 +
 doc/board/schneider/hmibsc.rst            |  45 ++
 doc/board/schneider/index.rst             |   9 +
 drivers/clk/qcom/clock-apq8016.c          |  38 +-
 drivers/pinctrl/qcom/pinctrl-apq8016.c    |   2 +
 drivers/pinctrl/qcom/pinctrl-qcom.c       |  25 +-
 drivers/serial/serial_msm.c               |  24 +-
 include/configs/hmibsc.h                  |  16 +
 13 files changed, 760 insertions(+), 26 deletions(-)
 create mode 100644 arch/arm/dts/apq8016-schneider-hmibsc.dts
 create mode 100644 board/schneider/hmibsc/MAINTAINERS
 create mode 100644 board/schneider/hmibsc/hmibsc.env
 create mode 100644 configs/hmibsc_defconfig
 create mode 100644 doc/board/schneider/hmibsc.rst
 create mode 100644 doc/board/schneider/index.rst
 create mode 100644 include/configs/hmibsc.h

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2.34.1