The following patches add basic support for the Nintendo Wii U video game console, a PowerPC system somewhat similar to the GameCube and Wii. This includes: - devicetree source - bootwrapper support - udbg console to bootloader - early udbg console - interrupt controllers - platform support - recognition of the Espresso processor - workaround for the discontiguous RAM blocks This is enough to boot on hardware. dmesg pics (with a small hack to udbg-immortal, not included): Link: https://wiki.linux-wiiu.org/images/7/7e/Mainline-initial-dmesg1.png Link: https://wiki.linux-wiiu.org/images/9/91/Mainline-initial-dmesg2.png For those who have hardware and would like to try these patches, some modification is required to the stock OS to allow Linux. For info: https://wiki.linux-wiiu.org/wiki/AdvancedSetup Some of the design choices (new platform > embedded6xx) were discussed previously: Link: https://lore.kernel.org/lkml/0020d47c-0e23-822c-33f5-ccb7ea4c1072@xxxxxxxxxxxx/T/ Turns out even less changes were needed than previously anticipated for discontiguous memory, and KUAP is yet to give trouble. Thanks to those who helped and discussed this. Changes since v1: - Style and formatting tweaks to the devicetree, thanks Rob Herring for the review. Ash Logan (12): dt-bindings: wiiu: Document the Nintendo Wii U devicetree powerpc: wiiu: device tree powerpc: wiiu: bootwrapper support powerpc: wiiu: introduce wiiu platform powerpc: wiiu: declare as non-coherent powerpc: wiiu: udbg support for latteipc powerpc: wiiu: espresso interrupt controller support powerpc: wiiu: latte interrupt controller support powerpc: espresso processor support powerpc: wiiu: platform support powerpc: wiiu: don't enforce flat memory powerpc: wiiu: Add minimal default config .../bindings/powerpc/nintendo/wiiu.yaml | 28 ++ .../powerpc/nintendo/wiiu/espresso-pic.yaml | 42 +++ .../bindings/powerpc/nintendo/wiiu/gpu7.yaml | 41 +++ .../powerpc/nintendo/wiiu/latte-ahci.yaml | 43 +++ .../powerpc/nintendo/wiiu/latte-dsp.yaml | 35 ++ .../powerpc/nintendo/wiiu/latte-pic.yaml | 46 +++ .../powerpc/nintendo/wiiu/latte-sdhci.yaml | 40 +++ .../bindings/powerpc/nintendo/wiiu/latte.yaml | 25 ++ arch/powerpc/Kconfig.debug | 9 + arch/powerpc/boot/Makefile | 4 + arch/powerpc/boot/dts/wiiu.dts | 322 ++++++++++++++++++ arch/powerpc/boot/wiiu-head.S | 103 ++++++ arch/powerpc/boot/wiiu.c | 73 ++++ arch/powerpc/boot/wrapper | 4 + arch/powerpc/configs/wiiu_defconfig | 7 + arch/powerpc/include/asm/udbg.h | 1 + arch/powerpc/kernel/cputable.c | 16 + arch/powerpc/kernel/head_book3s_32.S | 20 ++ arch/powerpc/kernel/udbg.c | 3 + arch/powerpc/mm/init_32.c | 4 +- arch/powerpc/platforms/Kconfig | 1 + arch/powerpc/platforms/Kconfig.cputype | 2 +- arch/powerpc/platforms/Makefile | 1 + arch/powerpc/platforms/wiiu/Kconfig | 19 ++ arch/powerpc/platforms/wiiu/Makefile | 4 + arch/powerpc/platforms/wiiu/espresso-pic.c | 183 ++++++++++ arch/powerpc/platforms/wiiu/espresso-pic.h | 59 ++++ arch/powerpc/platforms/wiiu/latte-pic.c | 259 ++++++++++++++ arch/powerpc/platforms/wiiu/latte-pic.h | 23 ++ arch/powerpc/platforms/wiiu/setup.c | 67 ++++ arch/powerpc/platforms/wiiu/udbg_latteipc.c | 122 +++++++ arch/powerpc/platforms/wiiu/udbg_latteipc.h | 27 ++ 32 files changed, 1630 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/espresso-pic.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/gpu7.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-ahci.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-dsp.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-pic.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-sdhci.yaml create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte.yaml create mode 100644 arch/powerpc/boot/dts/wiiu.dts create mode 100644 arch/powerpc/boot/wiiu-head.S create mode 100644 arch/powerpc/boot/wiiu.c create mode 100644 arch/powerpc/configs/wiiu_defconfig create mode 100644 arch/powerpc/platforms/wiiu/Kconfig create mode 100644 arch/powerpc/platforms/wiiu/Makefile create mode 100644 arch/powerpc/platforms/wiiu/espresso-pic.c create mode 100644 arch/powerpc/platforms/wiiu/espresso-pic.h create mode 100644 arch/powerpc/platforms/wiiu/latte-pic.c create mode 100644 arch/powerpc/platforms/wiiu/latte-pic.h create mode 100644 arch/powerpc/platforms/wiiu/setup.c create mode 100644 arch/powerpc/platforms/wiiu/udbg_latteipc.c create mode 100644 arch/powerpc/platforms/wiiu/udbg_latteipc.h base-commit: 4b0986a3613c92f4ec1bdc7f60ec66fea135991f -- 2.36.1
