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[v4,00/10] Add minimal Exynos8895 SoC and SM-G950F support

Message ID 20240909110017.419960-1-ivo.ivanov.ivanov1@gmail.com
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Series Add minimal Exynos8895 SoC and SM-G950F support | expand

Message

Ivaylo Ivanov Sept. 9, 2024, 11 a.m. UTC 
Hi folks,

This series adds initial SoC support for the Exynos 8895 SoC and also
initial board support for Samsung Galaxy S8 phone (SM-G950F), codenamed
dreamlte.

The Exynos 8895 SoC is also used in S8 Plus (dream2lte), Note 8 (greatlte)
and Meizu 15 Plus (m1891). Currently DT is added for the Exynos 8895 SoC
and dreamlte, but it should be really easy to adapt for the other devices
with the same SoC. It has been tested with dtbs_check W=1 and results
in no warnings.

The support added in this series consists of:
* cpus
* pinctrl
* gpio
* simple-framebuffer
* pstore

This is enough to reach a minimal initramfs shell using an upstream kernel.
More platform support will be added in the future.

The preferred way to boot this device is by using a small shim bl called
uniLoader [1], which packages the mainline kernel and DT and jumps to
the kernel. This is done in order to work around some issues caused by
the stock, and non-replacable Samsung S-Boot bootloader. For example,
S-Boot leaves the decon trigger control unset, which causes the framebuffer
to not refresh. 

[1] https://github.com/ivoszbg/uniLoader

Changes in v2:
- No patch changes were made, only fixed the issues with my git send-email

Changes in v3:
- Added a-b tags by Rob Herring and Linus Walleij
- Ordered the Samsung Mongoose M2 compatible in cpus.yaml
- Ordered the EXYNOS8895 information in exynos-chipid.c
- Made the commit message for pinctrl support more detailed
- Made the commit message for exynos-pmu.yaml more detailed
- Fixed suffixes for the exynos8895 pinctrl device tree
- Removed redundant nodes from the exynos8895 pinctrl device tree
- Made the arm-a53-pmu node cover only the Cortex A53 cores
- Added a comment mentioning the lack of a PMU model for Mongoose cores
- Added a comment mentioning the issue with CNTFRQ_EL0
- Removed the redundant fixed rate clocks wrapper
- Ordered the nodes by the DTS coding style in all 8895 DT files
- Removed the redundant status property from the simple-framebuffer node
- Switch to dual licensing (GPL-2.0 OR BSD-3-Clause) for the DT files

Changes in v4:
- Added r-b tag by Sam Protsenko
- Resolved the remaining pinctrl node name regex issues
- Corrected interrupt-cells for gpa1-gpio-bank
- Fixed suffixes for the dreamlte gpio keys pin nodes
- Reordered the dreamlte gpio-keys nodes alphabetically
- Fixed interrupt-controller simple-bus unit address
- Change framebuffer-related node labels to match other device trees

Kind regards,

Ivaylo.

Ivaylo Ivanov (10):
  dt-bindings: arm: cpus: Add Samsung Mongoose M2
  dt-bindings: hwinfo: samsung,exynos-chipid: add exynos8895 compatible
  soc: samsung: exynos-chipid: add exynos8895 SoC support
  dt-bindings: pinctrl: samsung: Add compatible for Exynos8895 SoC
  pinctrl: samsung: Add exynos8895 SoC pinctrl configuration
  dt-bindings: pinctrl: samsung: add exynos8895-wakeup-eint compatible
  dt-bindings: soc: samsung: exynos-pmu: Add exynos8895 compatible
  arm64: dts: exynos: Add initial support for exynos8895 SoC
  dt-bindings: arm: samsung: Document dreamlte board binding
  arm64: dts: exynos: Add initial support for Samsung Galaxy S8

 .../devicetree/bindings/arm/cpus.yaml         |    1 +
 .../bindings/arm/samsung/samsung-boards.yaml  |    6 +
 .../hwinfo/samsung,exynos-chipid.yaml         |    1 +
 .../samsung,pinctrl-wakeup-interrupt.yaml     |    1 +
 .../bindings/pinctrl/samsung,pinctrl.yaml     |    1 +
 .../bindings/soc/samsung/exynos-pmu.yaml      |    1 +
 arch/arm64/boot/dts/exynos/Makefile           |    1 +
 .../boot/dts/exynos/exynos8895-dreamlte.dts   |  126 ++
 .../boot/dts/exynos/exynos8895-pinctrl.dtsi   | 1092 +++++++++++++++++
 arch/arm64/boot/dts/exynos/exynos8895.dtsi    |  249 ++++
 .../pinctrl/samsung/pinctrl-exynos-arm64.c    |  137 +++
 drivers/pinctrl/samsung/pinctrl-exynos.h      |   10 +
 drivers/pinctrl/samsung/pinctrl-samsung.c     |    2 +
 drivers/pinctrl/samsung/pinctrl-samsung.h     |    1 +
 drivers/soc/samsung/exynos-chipid.c           |    1 +
 15 files changed, 1630 insertions(+)
 create mode 100644 arch/arm64/boot/dts/exynos/exynos8895-dreamlte.dts
 create mode 100644 arch/arm64/boot/dts/exynos/exynos8895-pinctrl.dtsi
 create mode 100644 arch/arm64/boot/dts/exynos/exynos8895.dtsi

Comments

Krzysztof Kozlowski Sept. 10, 2024, 7:37 a.m. UTC | #1 
On Mon, Sep 09, 2024 at 02:00:07PM +0300, Ivaylo Ivanov wrote:
> Hi folks,
> 
> This series adds initial SoC support for the Exynos 8895 SoC and also
> initial board support for Samsung Galaxy S8 phone (SM-G950F), codenamed
> dreamlte.
> 
> The Exynos 8895 SoC is also used in S8 Plus (dream2lte), Note 8 (greatlte)
> and Meizu 15 Plus (m1891). Currently DT is added for the Exynos 8895 SoC
> and dreamlte, but it should be really easy to adapt for the other devices
> with the same SoC. It has been tested with dtbs_check W=1 and results
> in no warnings.
> 
> The support added in this series consists of:
> * cpus
> * pinctrl
> * gpio
> * simple-framebuffer
> * pstore
> 
> This is enough to reach a minimal initramfs shell using an upstream kernel.
> More platform support will be added in the future.
> 
> The preferred way to boot this device is by using a small shim bl called
> uniLoader [1], which packages the mainline kernel and DT and jumps to
> the kernel. This is done in order to work around some issues caused by
> the stock, and non-replacable Samsung S-Boot bootloader. For example,
> S-Boot leaves the decon trigger control unset, which causes the framebuffer
> to not refresh. 
> 
> [1] https://github.com/ivoszbg/uniLoader
> 

FYI,
It is too late in the cycle for me to pick up any of these patches.
Also due to some travel and events, I might be slower in review, but I
will review them before next merge window opens.

Best regards,
Krzysztof