mbox series

[v3,0/4] arm64: dts: exynos: add initial support for Samsung Galaxy S22+

Message ID 20250321145556.1436201-1-ivo.ivanov.ivanov1@gmail.com (mailing list archive)
Headers show
Series arm64: dts: exynos: add initial support for Samsung Galaxy S22+ | expand

Message

Ivaylo Ivanov March 21, 2025, 2:55 p.m. UTC 
Hey folks,

This patchset adds device tree files for Exynos 2200 and Samsung
Galaxy S22+.

Exynos 2200 SoC is an ARMv8 mobile SoC found in the Samsung Galaxy S22
(r0s), S22+ (g0s), S22 Ultra (b0s) Add minimal support for that SoC,
including psci, pmu, chipid, architecture timer and mct, pinctrl,
clocks and usb.

The devices using this SoC suffer from an issue caused by the stock
Samsung bootloader, as it doesn't configure CNTFRQ_EL0. Hence it's
needed to hardcode the adequate frequency in the timer node,
otherwise the kernel panics.

Another issue is that cpu2 and cpu3 fail to come up consistently, which
leads to a hang later in the boot process. As A510 cores are clustered
by two, it makes sense for both of these cpus to fail if there is a
power issue. Disable them until the problem is figured out.

Samsung Galaxy S22+ (SM-S906B), codenamed g0s, is a mobile phone from
2022. It features 8GB RAM, 128/256GB UFS 3.1, Exynos 2200 SoC and a
1080x2340 Dynamic AMOLED display.

Further platform support will be added over time.

I expect [1], [2] and [3] to be merged in next before this patchset
because it depends on the aforementioned series for drivers and device
tree bindings.

Best regards,
Ivaylo

Changes in v3:
- account for the usbdrd changes in the exynos2200 soc dtsi
- drop usbcon driver from the MAINTAINERS patch

Changes in v2:
- mention the board codename in the first patch's commit message
- make all reg values hex in device trees
- reorder usb_con above usb_dwc3
- drop regulators for usb_con
- remodel usb_con_phy to take usb_hsphy phandle
- include MAINTAINERS patch in this patchset

[1] https://lore.kernel.org/all/20250321135854.1431375-1-ivo.ivanov.ivanov1@gmail.com/
[2] https://lore.kernel.org/all/20250215123922.163630-1-ivo.ivanov.ivanov1@gmail.com/
[3] https://lore.kernel.org/all/20250321144804.1435502-1-ivo.ivanov.ivanov1@gmail.com/

Ivaylo Ivanov (4):
  dt-bindings: arm: samsung: document g0s board binding
  arm64: dts: exynos: add initial support for exynos2200 SoC
  arm64: dts: exynos: add initial support for Samsung Galaxy S22+
  MAINTAINERS: add entry for Samsung Exynos2200 SoC

 .../bindings/arm/samsung/samsung-boards.yaml  |    6 +
 MAINTAINERS                                   |   10 +
 arch/arm64/boot/dts/exynos/Makefile           |    1 +
 arch/arm64/boot/dts/exynos/exynos2200-g0s.dts |  175 ++
 .../boot/dts/exynos/exynos2200-pinctrl.dtsi   | 1765 +++++++++++++++++
 arch/arm64/boot/dts/exynos/exynos2200.dtsi    |  561 ++++++
 6 files changed, 2518 insertions(+)
 create mode 100644 arch/arm64/boot/dts/exynos/exynos2200-g0s.dts
 create mode 100644 arch/arm64/boot/dts/exynos/exynos2200-pinctrl.dtsi
 create mode 100644 arch/arm64/boot/dts/exynos/exynos2200.dtsi

Comments

Krzysztof Kozlowski April 16, 2025, 7:20 a.m. UTC | #1 
On 21/03/2025 15:55, Ivaylo Ivanov wrote:
> Hey folks,
> 
> This patchset adds device tree files for Exynos 2200 and Samsung
> Galaxy S22+.
> 
> Exynos 2200 SoC is an ARMv8 mobile SoC found in the Samsung Galaxy S22
> (r0s), S22+ (g0s), S22 Ultra (b0s) Add minimal support for that SoC,
> including psci, pmu, chipid, architecture timer and mct, pinctrl,
> clocks and usb.
> 
> The devices using this SoC suffer from an issue caused by the stock
> Samsung bootloader, as it doesn't configure CNTFRQ_EL0. Hence it's
> needed to hardcode the adequate frequency in the timer node,
> otherwise the kernel panics.
> 
> Another issue is that cpu2 and cpu3 fail to come up consistently, which
> leads to a hang later in the boot process. As A510 cores are clustered
> by two, it makes sense for both of these cpus to fail if there is a
> power issue. Disable them until the problem is figured out.
> 
> Samsung Galaxy S22+ (SM-S906B), codenamed g0s, is a mobile phone from
> 2022. It features 8GB RAM, 128/256GB UFS 3.1, Exynos 2200 SoC and a
> 1080x2340 Dynamic AMOLED display.
> 
> Further platform support will be added over time.
> 
> I expect [1], [2] and [3] to be merged in next before this patchset
> because it depends on the aforementioned series for drivers and device
> tree bindings.

Please document dependencies at the top - this is the most important
part of cover letter.

Ping me when dependencies get merged.

Best regards,
Krzysztof