[PATCH v3 00/20] Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board
Sam Protsenko
semen.protsenko at linaro.org
Wed Oct 11 15:51:48 PDT 2023
On Wed, Oct 11, 2023 at 1:49 PM Peter Griffin <peter.griffin at linaro.org> wrote:
>
> Hi folks,
>
> Firstly, thanks to everyone who reviewed the v2/V1 series! V3 incorporates
> all the review feedback received so far.
>
> As this series spans multiple subsytems the expectation is that Krzysztof
> will apply the whole series through the Samsung SoC tree. If the relevant
> subsystem maintainers can give a acked-by or reviewed-by on the relevant
> patches that would be most appreciated!
>
> This series adds initial SoC support for the GS101 SoC and also initial board
> support for Pixel 6 phone (Oriole).
>
> The gs101 / Tensor SoC is also used in Pixel6a (bluejay) and Pixel 6 Pro
> (raven) phones. Currently DT is added for the gs101 SoC and Oriole.
> As you can see from the patches the SoC is based on a Samsung Exynos SoC,
> and therefore lots of the low level Exynos drivers and bindings can be
> re-used.
>
> The support added in this series consists of:
> * cpus
> * pinctrl
> * some CCF implementation
> * watchdog
> * uart
> * gpio
>
> This is enough to boot through to a busybox initramfs and shell using an
> upstream kernel though :) More platform support will be added over the
> following weeks and months.
>
> For further information on how to build and flash the upstream kernel on your
> Pixel 6, with a prebuilt busybox initramfs please refer to the script and
> README.md here:
>
> https://git.codelinaro.org/linaro/googlelt/pixelscripts
>
> Note 1: I've removed the dtbo overlay from v2 and later submissions and
> will re-submit once I have appropriate documentation for it.
>
> Note 2: I've left the bootargs in dts with earlycon for now, for two reasons.
> 1) The bootloader hangs if bootargs isn't present in the dtb as it tries to
> re-write this with additional bootargs.
> 2) there is a issue whereby the full serial console doesn't come up properly
> if earlycon isn't also specified. This issue needs further investigation.
>
> kind regards,
>
> Peter.
>
> Changes since v2:
> - Fixup pinctrl at 174d0000: interrupts: [..] is too long DTC warning (Tudor)
> - Add missing windowed watchdog code (Guenter)
> - Fixup UART YAML bindings error (Krzysztof)
> - gs101.dtsi add missing serial_0 alias (me)
> - samsung_tty.c: fixup gs101_serial_drv_data so fifosize os obtained from DT
>
> Changes since v1:
> - Remove irq/gs101.h and replace macros with irq numbers globally
> - exynos-pmu - keep alphabetical order
> - add cmu_apm to clock bindings documentation
> - sysreg bindings - remove superfluous `google,gs101-sysreg`
> - watchdog bindings - Alphanumerical order, update gs201 comment
> - samsung,pinctrl.yaml - add new "if:then:else:" to narrow for google SoC
> - samsung,pinctrl-wakeup-interrupt.yaml - Alphanumerical order
> - samsung,pinctrl- add google,gs101-wakeup-eint compatible
> - clk-pll: fixup typos
> - clk-gs101: fix kernel test robot warnings (add 2 new clocks,dividers,gate)
> - clk-gs101: fix alphabetical order
> - clk-gs101: cmu_apm: fixup typo and missing empty entry
> - clk-gs101: cmu_misc: remove clocks that were being registerred twice
> - pinctrl: filter sel: rename/reorder variables, add comment for FLTCON bitfield
> - pinctrl: filter sel: avoid setting reserved bits by loop over FLTCON1 pins as well
> - pinctrl: gs101: rename bank_type_6/7 structs to be more specific, split from filter
> - watchdog: s3c2410_wdt: remove dev_info prints
> - gs101.dtsi/oriole.dts: order by unit node, remove underscores from node name, blank lines
> add SoC node, split dts and dtsi into separate patches, remove 'DVT' suffix
> - gs101-oriole.dtso: Remove overlay until board_id is documented properly
> - Add GS101_PIN_* macros to gs101-pinctrl.h instead of using Exynos ones
> - gpio-keys: update linux,code to use input-event-code macros
> - add dedicated gs101-uart compatible
>
> Peter Griffin (20):
> dt-bindings: soc: samsung: exynos-pmu: Add gs101 compatible
> dt-bindings: clock: Add Google gs101 clock management unit bindings
> dt-bindings: soc: google: exynos-sysreg: add dedicated SYSREG
> compatibles to GS101
> dt-bindings: watchdog: Document Google gs101 & gs201 watchdog bindings
> dt-bindings: arm: google: Add bindings for Google ARM platforms
> dt-bindings: pinctrl: samsung: add google,gs101-pinctrl compatible
> dt-bindings: pinctrl: samsung: add gs101-wakeup-eint compatible
> dt-bindings: serial: samsung: Add google-gs101-uart compatible
> clk: samsung: clk-pll: Add support for pll_{0516,0517,518}
> clk: samsung: clk-gs101: Add cmu_top registers, plls, mux and gates
> clk: samsung: clk-gs101: add CMU_APM support
> clk: samsung: clk-gs101: Add support for CMU_MISC clock unit
Maybe squash those 3 patches into one? If you're going to send v4.
Just a thought.
> pinctrl: samsung: Add filter selection support for alive banks
> pinctrl: samsung: Add gs101 SoC pinctrl configuration
> watchdog: s3c2410_wdt: Add support for Google tensor SoCs
> tty: serial: samsung: Add gs101 compatible and SoC data
> arm64: dts: google: Add initial Google gs101 SoC support
> arm64: dts: google: Add initial Oriole/pixel 6 board support
> arm64: defconfig: Enable Google Tensor SoC
> MAINTAINERS: add entry for Google Tensor SoC
>
> .../devicetree/bindings/arm/google.yaml | 46 +
> .../bindings/clock/google,gs101-clock.yaml | 125 +
> .../samsung,pinctrl-wakeup-interrupt.yaml | 2 +
> .../bindings/pinctrl/samsung,pinctrl.yaml | 22 +-
> .../bindings/serial/samsung_uart.yaml | 1 +
> .../bindings/soc/samsung/exynos-pmu.yaml | 2 +
> .../soc/samsung/samsung,exynos-sysreg.yaml | 6 +
> .../bindings/watchdog/samsung-wdt.yaml | 10 +-
> MAINTAINERS | 10 +
> arch/arm64/Kconfig.platforms | 6 +
> arch/arm64/boot/dts/Makefile | 1 +
> arch/arm64/boot/dts/google/Makefile | 4 +
> arch/arm64/boot/dts/google/gs101-oriole.dts | 79 +
> arch/arm64/boot/dts/google/gs101-pinctrl.dtsi | 1275 ++++++++++
> arch/arm64/boot/dts/google/gs101-pinctrl.h | 32 +
> arch/arm64/boot/dts/google/gs101.dtsi | 504 ++++
> arch/arm64/configs/defconfig | 1 +
> drivers/clk/samsung/Kconfig | 9 +
> drivers/clk/samsung/Makefile | 2 +
> drivers/clk/samsung/clk-gs101.c | 2164 +++++++++++++++++
> drivers/clk/samsung/clk-pll.c | 9 +-
> drivers/clk/samsung/clk-pll.h | 3 +
> .../pinctrl/samsung/pinctrl-exynos-arm64.c | 163 ++
> drivers/pinctrl/samsung/pinctrl-exynos.c | 84 +-
> drivers/pinctrl/samsung/pinctrl-exynos.h | 41 +
> drivers/pinctrl/samsung/pinctrl-samsung.c | 4 +
> drivers/pinctrl/samsung/pinctrl-samsung.h | 24 +
> drivers/tty/serial/samsung_tty.c | 13 +
> drivers/watchdog/s3c2410_wdt.c | 127 +-
> include/dt-bindings/clock/google,gs101.h | 232 ++
> 30 files changed, 4985 insertions(+), 16 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/arm/google.yaml
> create mode 100644 Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
> create mode 100644 arch/arm64/boot/dts/google/Makefile
> create mode 100644 arch/arm64/boot/dts/google/gs101-oriole.dts
> create mode 100644 arch/arm64/boot/dts/google/gs101-pinctrl.dtsi
> create mode 100644 arch/arm64/boot/dts/google/gs101-pinctrl.h
> create mode 100644 arch/arm64/boot/dts/google/gs101.dtsi
> create mode 100644 drivers/clk/samsung/clk-gs101.c
> create mode 100644 include/dt-bindings/clock/google,gs101.h
>
> --
> 2.42.0.655.g421f12c284-goog
>
More information about the linux-arm-kernel
mailing list