[RFC,0/3] Add SCMI clk support for NXP S32G2

Message

Chester Lin Feb. 7, 2022, 1:24 p.m. UTC

Hi folks,

Here I'd like to propose an upstream patchset to support clock management of
NXP S32G2 platforms based on ARM-SCMI's clock protocol (0x14). The goal is to
have simple clock settings for enabling limited functions, such as MMC and
GMAC0. Most of codes are mainly refined/refactored/redistributed from NXP's
downstream codebase on CodeAurora[1] under the original license announcements
and all SCMI clock IDs still match the implementations of NXP's downstream
TF-A[2].

For those downstream authors who implement the main/original ideas, please
forgive me that I only leave my name as "Signed-off-by" because I'm not sure
if you might agree with these changes. Please feel free to let me know if you
don't mind to be added into the list.

I roughly verified this patchset with NXP downstream firmware blobs [major ver:
bsp30 & bsp31], such as TF-A[2] and U-Boot[3] (BL33) on CodeAurora.

Thanks for your patience.

Chester

[1]: https://source.codeaurora.org/external/autobsps32/linux/
[2]: https://source.codeaurora.org/external/autobsps32/arm-trusted-firmware/
[3]: https://source.codeaurora.org/external/autobsps32/u-boot/

Chester Lin (3):
  dt-bindings: clock: Add s32g2 clock binding
  arm64: dts: s32g2: add SCMI support
  arm64: dts: s32g2: add USDHC support

 arch/arm64/boot/dts/freescale/s32g2.dtsi      | 40 +++++++++++++++++++
 .../arm64/boot/dts/freescale/s32g274a-evb.dts |  4 ++
 .../boot/dts/freescale/s32g274a-rdb2.dts      |  4 ++
 include/dt-bindings/clock/s32g2-clock.h       | 28 +++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 include/dt-bindings/clock/s32g2-clock.h