This series introduces some infrastructure for building generic kernels which will run on multiple boards depending upon the device tree provided to them by the bootloader. It converts SEAD-3 to make use of this, and adds support for the MIPS Boston development platform. The Boston support can be tested in QEMU with this patchset applied: https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg03419.html To do so, configure the kernel for the generic 64r6el_defconfig & run QEMU like so: $ make ARCH=mips 64r6el_defconfig $ make ARCH=mips CROSS_COMPILE=my-toolchain- $ qemu-system-mips64el -M boston \ -kernel arch/mips/boot/vmlinux.gz.itb \ serial stdio The same kernel binary will also boot on a SEAD-3 if using a bootloader capable of loading the FIT image format (ie. U-Boot). These 2 boards form the starting point for the generic kernels, with Ci20 & Ci40 able to be added easily. Malta will require further work, but I've got most peripherals converted to probe using device tree as a starting point & will submit that separately. v3 drops some patches which aren't critical & need comments made during review addressing. This series applies atop mips-for-linux-next as of 6a44eb2884ca, but needs the remaining patches of my SEAD-3 DT conversion series to be applied first. Paul Burton (18): MIPS: PCI: Use struct list_head lists MIPS: PCI: Support for CONFIG_PCI_DOMAINS_GENERIC MIPS: PCI: Make pcibios_set_cache_line_size an initcall MIPS: PCI: Inline pcibios_assign_all_busses MIPS: PCI: Split pci.c into pci.c & pci-legacy.c MIPS: PCI: Introduce CONFIG_PCI_DRIVERS_LEGACY MIPS: PCI: Support generic drivers MIPS: Sanitise coherentio semantics MIPS: dma-default: Don't check hw_coherentio if device is non-coherent MIPS: Support per-device DMA coherence MIPS: Print CM error reports upon bus errors MIPS: Adjust MIPS64 CAC_BASE to reflect Config.K0 MIPS: Support generating Flattened Image Trees (.itb) MIPS: generic: Introduce generic DT-based board support MIPS: generic: Convert SEAD-3 to a generic board dt-bindings: Document img,boston-clock binding clk: boston: Add a driver for MIPS Boston board clocks MIPS: generic: Support MIPS Boston development boards .../devicetree/bindings/clock/img,boston-clock.txt | 27 ++ arch/mips/Kbuild.platforms | 2 +- arch/mips/Kconfig | 105 ++++--- arch/mips/Makefile | 77 +++++- arch/mips/alchemy/common/setup.c | 6 +- arch/mips/boot/Makefile | 66 +++++ arch/mips/boot/dts/Makefile | 1 + arch/mips/boot/dts/img/Makefile | 7 + arch/mips/boot/dts/img/boston.dts | 230 ++++++++++++++++ arch/mips/boot/dts/mti/Makefile | 2 +- arch/mips/boot/dts/mti/sead3.dts | 1 + arch/mips/configs/generic/32r1.config | 2 + arch/mips/configs/generic/32r2.config | 3 + arch/mips/configs/generic/32r6.config | 2 + arch/mips/configs/generic/64r1.config | 4 + arch/mips/configs/generic/64r2.config | 5 + arch/mips/configs/generic/64r6.config | 4 + arch/mips/configs/generic/board-boston.config | 46 ++++ arch/mips/configs/generic/board-sead-3.config | 32 +++ arch/mips/configs/generic/eb.config | 1 + arch/mips/configs/generic/el.config | 1 + arch/mips/configs/generic/micro32r2.config | 4 + arch/mips/configs/generic_defconfig | 96 +++++++ arch/mips/configs/sead3_defconfig | 129 --------- arch/mips/configs/sead3micro_defconfig | 122 --------- arch/mips/generic/Kconfig | 27 ++ arch/mips/generic/Makefile | 15 + arch/mips/generic/Platform | 14 + .../sead3-dtshim.c => generic/board-sead3.c} | 106 +++++++- arch/mips/generic/init.c | 176 ++++++++++++ arch/mips/generic/irq.c | 64 +++++ arch/mips/generic/proc.c | 29 ++ arch/mips/generic/vmlinux.its.S | 56 ++++ arch/mips/include/asm/addrspace.h | 3 +- arch/mips/include/asm/device.h | 5 + arch/mips/include/asm/dma-coherence.h | 16 +- arch/mips/include/asm/dma-mapping.h | 10 + arch/mips/include/asm/mach-generic/dma-coherence.h | 14 +- arch/mips/include/asm/mach-generic/spaces.h | 8 +- arch/mips/include/asm/mach-ip27/spaces.h | 1 + .../include/asm/mach-sead3/cpu-feature-overrides.h | 72 ----- arch/mips/include/asm/mach-sead3/irq.h | 9 - .../include/asm/mach-sead3/kernel-entry-init.h | 21 -- arch/mips/include/asm/mach-sead3/sead3-dtshim.h | 29 -- arch/mips/include/asm/mach-sead3/war.h | 24 -- arch/mips/include/asm/machine.h | 63 +++++ arch/mips/include/asm/pci.h | 60 +++- arch/mips/kernel/traps.c | 3 + arch/mips/lib/iomap-pci.c | 4 + arch/mips/mm/c-r4k.c | 7 +- arch/mips/mm/dma-default.c | 16 +- arch/mips/mti-malta/malta-int.c | 15 - arch/mips/mti-malta/malta-setup.c | 10 +- arch/mips/mti-sead3/Makefile | 15 - arch/mips/mti-sead3/Platform | 7 - arch/mips/mti-sead3/sead3-init.c | 100 ------- arch/mips/mti-sead3/sead3-int.c | 23 -- arch/mips/mti-sead3/sead3-setup.c | 39 --- arch/mips/mti-sead3/sead3-time.c | 91 ------- arch/mips/pci/Makefile | 2 + arch/mips/pci/pci-alchemy.c | 3 +- arch/mips/pci/pci-generic.c | 52 ++++ arch/mips/pci/pci-legacy.c | 302 +++++++++++++++++++++ arch/mips/pci/pci.c | 297 +------------------- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/imgtec/Kconfig | 10 + drivers/clk/imgtec/Makefile | 1 + drivers/clk/imgtec/clk-boston.c | 101 +++++++ include/dt-bindings/clock/boston-clock.h | 14 + 70 files changed, 1824 insertions(+), 1087 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/img,boston-clock.txt create mode 100644 arch/mips/boot/dts/img/Makefile create mode 100644 arch/mips/boot/dts/img/boston.dts create mode 100644 arch/mips/configs/generic/32r1.config create mode 100644 arch/mips/configs/generic/32r2.config create mode 100644 arch/mips/configs/generic/32r6.config create mode 100644 arch/mips/configs/generic/64r1.config create mode 100644 arch/mips/configs/generic/64r2.config create mode 100644 arch/mips/configs/generic/64r6.config create mode 100644 arch/mips/configs/generic/board-boston.config create mode 100644 arch/mips/configs/generic/board-sead-3.config create mode 100644 arch/mips/configs/generic/eb.config create mode 100644 arch/mips/configs/generic/el.config create mode 100644 arch/mips/configs/generic/micro32r2.config create mode 100644 arch/mips/configs/generic_defconfig delete mode 100644 arch/mips/configs/sead3_defconfig delete mode 100644 arch/mips/configs/sead3micro_defconfig create mode 100644 arch/mips/generic/Kconfig create mode 100644 arch/mips/generic/Makefile create mode 100644 arch/mips/generic/Platform rename arch/mips/{mti-sead3/sead3-dtshim.c => generic/board-sead3.c} (72%) create mode 100644 arch/mips/generic/init.c create mode 100644 arch/mips/generic/irq.c create mode 100644 arch/mips/generic/proc.c create mode 100644 arch/mips/generic/vmlinux.its.S delete mode 100644 arch/mips/include/asm/mach-sead3/cpu-feature-overrides.h delete mode 100644 arch/mips/include/asm/mach-sead3/irq.h delete mode 100644 arch/mips/include/asm/mach-sead3/kernel-entry-init.h delete mode 100644 arch/mips/include/asm/mach-sead3/sead3-dtshim.h delete mode 100644 arch/mips/include/asm/mach-sead3/war.h create mode 100644 arch/mips/include/asm/machine.h delete mode 100644 arch/mips/mti-sead3/Makefile delete mode 100644 arch/mips/mti-sead3/Platform delete mode 100644 arch/mips/mti-sead3/sead3-init.c delete mode 100644 arch/mips/mti-sead3/sead3-int.c delete mode 100644 arch/mips/mti-sead3/sead3-setup.c delete mode 100644 arch/mips/mti-sead3/sead3-time.c create mode 100644 arch/mips/pci/pci-generic.c create mode 100644 arch/mips/pci/pci-legacy.c create mode 100644 drivers/clk/imgtec/Kconfig create mode 100644 drivers/clk/imgtec/Makefile create mode 100644 drivers/clk/imgtec/clk-boston.c create mode 100644 include/dt-bindings/clock/boston-clock.h -- 2.10.0
