Since v2: - Fixup gpio-mmio patch to update driver compatible list and just add opencores,gpio to mmio-gpio bindings. Discussed with Geert and Linus W [1]. - Update new device trees to use proper ordering, remove debug options, remove unneeded "status" properties. Suggested by Geert. Since v1: - Use proper schema in gpio-mmio suggsted by Conor Dooley - Remove 0 clock-frequency definitions in dtsi file
The patches add support for OpenRISC systems running on the De0 Nano FPGA development board. We have two SoCs which are available here: - https://github.com/olofk/de0_nano - Single core - https://github.com/stffrdhrn/de0_nano-multicore - Multicore As I work on tutorials [2] to help other get started with OpenRISC I would like to have these defconfig and devicetree definitions in the upstream kernel to avoid losing them. When I was working on resurrecting these old setup's I found a major bug in OpenRISC SMP which is fixed in this series as well. [1] https://lore.kernel.org/lkml/[email protected]/ [2] https://openrisc.io/tutorials/ Stafford Horne (6): gpio: mmio: Add compatible for opencores GPIO dt-bindings: gpio-mmio: Add opencores GPIO openrisc: dts: Add de0 nano config and devicetree openrisc: Fix IPIs on simple multicore systems openrisc: dts: Split simple smp dts to dts and dtsi openrisc: dts: Add de0 nano multicore config and devicetree .../devicetree/bindings/gpio/gpio-mmio.yaml | 9 ++ arch/openrisc/boot/dts/de0-nano-common.dtsi | 42 +++++++++ arch/openrisc/boot/dts/de0-nano-multicore.dts | 25 +++++ arch/openrisc/boot/dts/de0-nano.dts | 54 +++++++++++ arch/openrisc/boot/dts/simple-smp.dts | 25 +++++ .../dts/{simple_smp.dts => simple-smp.dtsi} | 11 +-- arch/openrisc/configs/de0_nano_defconfig | 79 ++++++++++++++++ .../configs/de0_nano_multicore_defconfig | 92 +++++++++++++++++++ arch/openrisc/configs/simple_smp_defconfig | 2 +- arch/openrisc/include/asm/smp.h | 3 +- arch/openrisc/kernel/smp.c | 22 ++++- drivers/gpio/gpio-mmio.c | 1 + drivers/irqchip/irq-ompic.c | 15 ++- drivers/irqchip/irq-or1k-pic.c | 27 +++++- 14 files changed, 393 insertions(+), 14 deletions(-) create mode 100644 arch/openrisc/boot/dts/de0-nano-common.dtsi create mode 100644 arch/openrisc/boot/dts/de0-nano-multicore.dts create mode 100644 arch/openrisc/boot/dts/de0-nano.dts create mode 100644 arch/openrisc/boot/dts/simple-smp.dts rename arch/openrisc/boot/dts/{simple_smp.dts => simple-smp.dtsi} (90%) create mode 100644 arch/openrisc/configs/de0_nano_defconfig create mode 100644 arch/openrisc/configs/de0_nano_multicore_defconfig -- 2.51.0
