From mboxrd@z Thu Jan 1 00:00:00 1970 From: afaerber@suse.de (=?UTF-8?q?Andreas=20F=C3=A4rber?=) Date: Wed, 15 Feb 2017 17:55:17 +0100 Subject: [PATCH 00/11] ARM: Initial Actions Semi S500 and S900 enablement Message-ID: <20170215165528.10052-1-afaerber@suse.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello, Based on earlier work of mine for the LeMaker Guitar, this series adds initial support for the Actions Semiconductor S500 (ARMv7) and S900 (ARMv8) SoCs. Despite Actions Semi being a Linaro member since 2015, sadly I have not seen a single upstream kernel patch submission since. Nor has the XApple community taken any such initiative. The GitHub LeMaker/linux-actions and xapp-le/kernel trees have 3.10 based S500 drivers in arch/arm/mach-owl/, whereas the 96boards-bubblegum/linux tree has new-style but still 3.10 based S900 drivers. I also spotted GPLv2+ vs. GPLv2 license differences. This series therefore provides a proof of concept for a combined S500 and S900 mainline implementation. Only earlycon serial output is available for now. Focusing on Bubblegum-96, no S500 clocksource implementation is provided yet, thus output on Guitar is less than on Bubblegum-96, but still it demonstrates that a single driver can be shared for both, using compatible strings for future differentiation. https://github.com/afaerber/linux/commits/bg96-next Booting from U-Boot 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 Cc: mp-cs at actions-semi.com Cc: info at ucrobotics.com Cc: support at lemaker.org Cc: contact at linux-xapple.org Cc: devicetree at vger.kernel.org Andreas F?rber (11): Documentation: devicetree: Add vendor prefix for Actions Semi Documentation: devicetree: arm: Document Actions Semi S500 ARM: Prepare Actions Semi S500 ARM64: Prepare Actions Semi S900 Documentation: devicetree: serial: Document Actions Semi Owl UARTs tty: serial: Add Actions Semi Owl UART earlycon Documentation: kernel-parameters: Document owl earlycon ARM: dts: Prepare Actions Semi S500 and LeMaker Guitar Documentation: devicetree: Add vendor prefix for uCRobotics Documentation: devicetree: arm: Document Actions Semi S900 ARM64: dts: Prepare Actions Semi S900 and Bubblegum-96 Documentation/admin-guide/kernel-parameters.txt | 6 + Documentation/devicetree/bindings/arm/acts.txt | 32 +++++ .../devicetree/bindings/serial/acts,owl-uart.txt | 16 +++ .../devicetree/bindings/vendor-prefixes.txt | 2 + arch/arm/Kconfig | 2 + arch/arm/Makefile | 1 + arch/arm/boot/dts/Makefile | 2 + arch/arm/boot/dts/s500-guitar-bb-rev-b.dts | 63 ++++++++++ arch/arm/boot/dts/s500-guitar.dtsi | 49 ++++++++ arch/arm/boot/dts/s500.dtsi | 116 +++++++++++++++++ arch/arm/mach-owl/Kconfig | 9 ++ arch/arm/mach-owl/Makefile | 1 + arch/arm/mach-owl/owl.c | 28 +++++ arch/arm64/Kconfig.platforms | 5 + arch/arm64/boot/dts/Makefile | 1 + arch/arm64/boot/dts/actions/Makefile | 5 + arch/arm64/boot/dts/actions/s900-bubblegum96.dts | 62 +++++++++ arch/arm64/boot/dts/actions/s900.dtsi | 140 +++++++++++++++++++++ drivers/tty/serial/Kconfig | 19 +++ drivers/tty/serial/Makefile | 1 + drivers/tty/serial/owl-uart.c | 135 ++++++++++++++++++++ 21 files changed, 695 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/acts.txt create mode 100644 Documentation/devicetree/bindings/serial/acts,owl-uart.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-owl/Kconfig create mode 100644 arch/arm/mach-owl/Makefile create mode 100644 arch/arm/mach-owl/owl.c create mode 100644 arch/arm64/boot/dts/actions/Makefile create mode 100644 arch/arm64/boot/dts/actions/s900-bubblegum96.dts create mode 100644 arch/arm64/boot/dts/actions/s900.dtsi create mode 100644 drivers/tty/serial/owl-uart.c -- 2.10.2