Hello, This patch series adds initial support for Actions Semiconductor S500 (ARMv7) and S900 (ARMv8) SoCs. v4 refactors the clocksource driver again and fixes power-gating for CPU2/CPU3. With this v4 I would like to start applying initial patches to my tree for 4.13. @Actions: Last call for comments on vendor prefix and SoC bindings! @uCRobotics: Last call for comments on vendor prefix and board bindings! @LeMaker: Last call for comments on module and board bindings! Work branch for testing: https://github.com/afaerber/linux/commits/bg96-next Booting from U-Boot to initrd is straightforward on both boards: https://en.opensuse.org/HCL:Guitar https://en.opensuse.org/HCL:Bubblegum-96 Have a lot of fun! Cheers, Andreas v3 -> v4: * Revert to hardcoded TIMER0/1 in clocksource (Daniel) * Make power domains CPU2 and CPU3 always-on * Clean up SMP vs. PM domains code duplication * Extend earlycon documentation (Jonathan) * Update MAINTAINERS with SPS files v2 -> v3: * Clocksource fix * Clocksource cleanups (Daniel) * Serial cleanups * Add S500 CPU enable-method * Add power domain driver * Rework clocksource for S900 compatibility v1 -> v2: * S900 DT fixes (Mark) * Kconfig name changes (Arnd) * Bubblegum-96 .dts rename * Vendor prefix rename * Minor cleanups * Add serial driver * Add MAINTAINERS section * Use SPDX-License-Identifier in DT (Rob) * Add clocksource driver Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Olof Johansson <olof@xxxxxxxxx> Cc: Rob Herring <robh@xxxxxxxxxx> Cc: Mark Rutland <mark.rutland@xxxxxxx> Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: mp-cs@xxxxxxxxxxxxxxxx Cc: Thomas Liau <thomas.liau@xxxxxxxxxxxxxxxx> Cc: 96boards@xxxxxxxxxxxxxx Cc: support@xxxxxxxxxxx Cc: linux-serial@xxxxxxxxxxxxxxx Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Cc: linux-pm@xxxxxxxxxxxxxxx Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx> Cc: Kevin Hilman <khilman@xxxxxxxxxx> Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Cc: linux-doc@xxxxxxxxxxxxxxx Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Andreas Färber (28): dt-bindings: Add vendor prefix for Actions Semi dt-bindings: arm: Document Actions Semi S500 dt-bindings: timer: Document Owl timer clocksource: Add Owl timer clocksource: owl: Add S900 support ARM: Prepare Actions Semi S500 ARM64: Prepare Actions Semi S900 dt-bindings: serial: Document Actions Semi Owl UARTs tty: serial: Add Actions Semi Owl UART earlycon Documentation: kernel-parameters: Document owl earlycon ARM: dts: Add Actions Semi S500 and LeMaker Guitar dt-bindings: Add vendor prefix for uCRobotics dt-bindings: arm: Document Actions Semi S900 ARM64: dts: Add Actions Semi S900 and Bubblegum-96 MAINTAINERS: Add Actions Semi Owl section tty: serial: owl: Implement console driver ARM64: dts: actions: s900-bubblegum-96: Add fake uart5 clock ARM: dts: s500-guitar-bb-rev-b: Add fake uart3 clock dt-bindings: arm: cpus: Add S500 enable-method ARM: owl: Implement CPU enable-method for S500 ARM: dts: s500: Set CPU enable-method dt-bindings: power: Add Owl SPS power domains soc: actions: Add Owl SPS MAINTAINERS: Update Actions Semi section with SPS ARM: dts: s500: Add SPS node ARM: dts: s500: Set power domains for CPU2 and CPU3 soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3 Documentation/admin-guide/kernel-parameters.txt | 6 + Documentation/devicetree/bindings/arm/actions.txt | 39 ++ Documentation/devicetree/bindings/arm/cpus.txt | 1 + .../devicetree/bindings/power/actions,owl-sps.txt | 17 + .../bindings/serial/actions,owl-uart.txt | 16 + .../bindings/timer/actions,owl-timer.txt | 20 + .../devicetree/bindings/vendor-prefixes.txt | 2 + MAINTAINERS | 13 + arch/arm/Kconfig | 2 + arch/arm/Makefile | 1 + arch/arm/boot/dts/Makefile | 2 + arch/arm/boot/dts/s500-guitar-bb-rev-b.dts | 33 + arch/arm/boot/dts/s500-guitar.dtsi | 22 + arch/arm/boot/dts/s500.dtsi | 189 ++++++ arch/arm/mach-actions/Kconfig | 16 + arch/arm/mach-actions/Makefile | 4 + arch/arm/mach-actions/headsmp.S | 68 ++ arch/arm/mach-actions/owl.c | 28 + arch/arm/mach-actions/platsmp.c | 198 ++++++ arch/arm64/Kconfig.platforms | 6 + arch/arm64/boot/dts/Makefile | 1 + arch/arm64/boot/dts/actions/Makefile | 5 + arch/arm64/boot/dts/actions/s900-bubblegum-96.dts | 42 ++ arch/arm64/boot/dts/actions/s900.dtsi | 164 +++++ drivers/clocksource/Kconfig | 7 + drivers/clocksource/Makefile | 1 + drivers/clocksource/owl-timer.c | 172 +++++ drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 1 + drivers/soc/actions/Kconfig | 16 + drivers/soc/actions/Makefile | 2 + drivers/soc/actions/owl-sps-helper.c | 51 ++ drivers/soc/actions/owl-sps.c | 224 +++++++ drivers/tty/serial/Kconfig | 19 + drivers/tty/serial/Makefile | 1 + drivers/tty/serial/owl-uart.c | 724 +++++++++++++++++++++ include/dt-bindings/power/s500-powergate.h | 19 + include/linux/soc/actions/owl-sps.h | 11 + include/uapi/linux/serial_core.h | 3 + 39 files changed, 2147 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/actions.txt create mode 100644 Documentation/devicetree/bindings/power/actions,owl-sps.txt create mode 100644 Documentation/devicetree/bindings/serial/actions,owl-uart.txt create mode 100644 Documentation/devicetree/bindings/timer/actions,owl-timer.txt create mode 100644 arch/arm/boot/dts/s500-guitar-bb-rev-b.dts create mode 100644 arch/arm/boot/dts/s500-guitar.dtsi create mode 100644 arch/arm/boot/dts/s500.dtsi create mode 100644 arch/arm/mach-actions/Kconfig create mode 100644 arch/arm/mach-actions/Makefile create mode 100644 arch/arm/mach-actions/headsmp.S create mode 100644 arch/arm/mach-actions/owl.c create mode 100644 arch/arm/mach-actions/platsmp.c create mode 100644 arch/arm64/boot/dts/actions/Makefile create mode 100644 arch/arm64/boot/dts/actions/s900-bubblegum-96.dts create mode 100644 arch/arm64/boot/dts/actions/s900.dtsi create mode 100644 drivers/clocksource/owl-timer.c create mode 100644 drivers/soc/actions/Kconfig create mode 100644 drivers/soc/actions/Makefile create mode 100644 drivers/soc/actions/owl-sps-helper.c create mode 100644 drivers/soc/actions/owl-sps.c create mode 100644 drivers/tty/serial/owl-uart.c create mode 100644 include/dt-bindings/power/s500-powergate.h create mode 100644 include/linux/soc/actions/owl-sps.h -- 2.12.3 -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
