[PATCH 00/26] MIPS generic kernels, SEAD-3 & Boston support

Paul Burton
2016-08-26T15:36:59Z

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.

This series applies atop v4.8-rc3 with my "MIPS: SEAD3 device tree
conversion" series applied first.

Paul Burton (26):
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
dt-bindings: Document mti,mips-cpc binding
MIPS: CPC: Provide a default mips_cpc_default_phys_base
dt-bindings: Document mti,mips-cdmm binding
MIPS: CDMM: Allow CDMM base address to be specified via DT
irqchip: mips-cpu: Replace magic 0x100 with IE_SW0
irqchip: mips-cpu: Prepare for non-legacy IRQ domains
irqchip: mips-cpu: Introduce IPI IRQ domain support
MIPS: smp-mt: Use CPU interrupt controller IPI IRQ domain support
MIPS: Stengthen IPI IRQ domain sanity check
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 ++
.../devicetree/bindings/misc/mti,mips-cdmm.txt | 8 +
.../devicetree/bindings/misc/mti,mips-cpc.txt | 8 +
arch/mips/Kbuild.platforms | 2 +-
arch/mips/Kconfig | 104 ++++---
arch/mips/Makefile | 72 ++++-
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 | 1 +
arch/mips/configs/generic/64r2.config | 2 +
arch/mips/configs/generic/64r6.config | 1 +
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 | 2 +
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 | 174 ++++++++++++
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 | 57 +++-
arch/mips/kernel/mips-cpc.c | 18 ++
arch/mips/kernel/smp-mt.c | 49 +---
arch/mips/kernel/smp.c | 20 +-
arch/mips/kernel/traps.c | 3 +
arch/mips/lantiq/irq.c | 52 ----
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 | 90 +-----
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 | 296 +-------------------
drivers/bus/mips_cdmm.c | 13 +
drivers/clk/Kconfig | 9 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-boston.c | 131 +++++++++
drivers/irqchip/Kconfig | 2 +
drivers/irqchip/irq-mips-cpu.c | 149 ++++++++--
include/dt-bindings/clock/boston-clock.h | 13 +
77 files changed, 1937 insertions(+), 1279 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/img,boston-clock.txt
create mode 100644 Documentation/devicetree/bindings/misc/mti,mips-cdmm.txt
create mode 100644 Documentation/devicetree/bindings/misc/mti,mips-cpc.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/clk-boston.c
create mode 100644 include/dt-bindings/clock/boston-clock.h

--
2.9.3