Hi Linus, Please pull this port of Linux to the OpenRISC architecture, available in the 'for-upstream' branch at: git://openrisc.net/jonas/linux The OpenRISC architecture was conceived with the idea of creating a CPU with an open specification and freely licensed implementations thereof. The OR1200 implementation of the OpenRISC 1000 architecture is LGPL licensed, runs on FPGA's from a broad number of vendors, and is currently being used in a number of successful industrial projects. A product of OpenCores.org, development of the OpenRISC architecture has unfortunately languished for a while buried amongst a multitude of other projects. Recently, however, a renewed effort to lift the CPU project out of its doldrums was initiated by the OpenCores.org management and a community of participants consisting of both commercial and independent contributors has rapidly taken shape around this effort. The project now lives (at least temporarily) at http://openrisc.net where it can get the attention it needs. The active development community around this architecture has grown from roughly 5 to 25 developers in the last year and we are looking forward to seeing what may emerge as the community grows and this CPU architecture is allowed to be developed truly in the open. We have been tracking upstream Linux with our port since 2.6.35. Tracking upstream has been mostly painless as the changes that require architecture modifications are pretty easy to spot with git. That said, we want to be "upstream!" So here's our code. The patches in this branch implement support for the OpenRISC architecture on Linux. The patch series is broken into functional units that have been through several rounds of review on LKML. The implementation for the OpenRISC support isn't huge: 82 files changed, 10914 insertions(+), 0 deletions(-) We've tried to do things following as modern an approach as we could. That includes using device trees for platform descriptions and using as many asm-generic headers as possible. We even got a couple of cleanups into asm-generic along the way to make things even tidier. We are excited by the prospect of getting our work upstream and we are excited by this opportunity to bring the OpenRISC architecture to the attention of a larger audience. /Jonas -- NOTE: This pull depends on a patch "modules: add default loader hook implementations" in Rusty's tree... without that, the OpenRISC arch will not build. Note also that there are a couple of patches that touch asm-generic bits at the base of the branch, including a patch from Andrew that was moved to this branch to avoid a merge conflict. The following changes since commit b0af8dfdd67699e25083478c63eedef2e72ebd85: Linux 3.0-rc5 (2011-06-27 19:12:22 -0700) are available in the git repository at: git://openrisc.net/jonas/linux for-upstream Andrew Morton (1): asm-generic: delay.h fix udelay and ndelay for 8 bit args Jonas Bonn (23): asm-generic: adapt delay.h to common implementation asm-generic: move archictures to common delay.h asm-generic: add MMU variants of io.h functions iomap: make IOPORT/PCI mapping functions conditional OpenRISC: Boot code OpenRISC: Device tree OpenRISC: Memory management OpenRISC: Signal handling OpenRISC: Build infrastructure OpenRISC: PTrace OpenRISC: DMA OpenRISC: Timekeeping OpenRISC: IRQ OpenRISC: System calls OpenRISC: Idle/Power management OpenRISC: Scheduling/Process management OpenRISC: GPIO OpenRISC: Module support OpenRISC: Traps OpenRISC: Headers OpenRISC: Library routines OpenRISC: Miscellaneous OpenRISC: Add MAINTAINERS entry MAINTAINERS | 8 + arch/avr32/include/asm/delay.h | 27 +- arch/m32r/include/asm/delay.h | 27 +- arch/openrisc/Kconfig | 207 ++++ arch/openrisc/Makefile | 55 + arch/openrisc/README.openrisc | 99 ++ arch/openrisc/TODO.openrisc | 16 + arch/openrisc/boot/Makefile | 15 + arch/openrisc/boot/dts/or1ksim.dts | 50 + arch/openrisc/configs/or1ksim_defconfig | 65 ++ arch/openrisc/include/asm/Kbuild | 64 ++ arch/openrisc/include/asm/asm-offsets.h | 1 + arch/openrisc/include/asm/bitops.h | 59 ++ arch/openrisc/include/asm/bitops/__ffs.h | 33 + arch/openrisc/include/asm/bitops/__fls.h | 33 + arch/openrisc/include/asm/bitops/ffs.h | 32 + arch/openrisc/include/asm/bitops/fls.h | 33 + arch/openrisc/include/asm/byteorder.h | 1 + arch/openrisc/include/asm/cache.h | 29 + arch/openrisc/include/asm/cpuinfo.h | 34 + arch/openrisc/include/asm/delay.h | 24 + arch/openrisc/include/asm/dma-mapping.h | 134 +++ arch/openrisc/include/asm/elf.h | 108 ++ arch/openrisc/include/asm/fixmap.h | 87 ++ arch/openrisc/include/asm/gpio.h | 65 ++ arch/openrisc/include/asm/io.h | 51 + arch/openrisc/include/asm/irq.h | 27 + arch/openrisc/include/asm/irqflags.h | 29 + arch/openrisc/include/asm/linkage.h | 25 + arch/openrisc/include/asm/memblock.h | 24 + arch/openrisc/include/asm/mmu.h | 26 + arch/openrisc/include/asm/mmu_context.h | 43 + arch/openrisc/include/asm/mutex.h | 27 + arch/openrisc/include/asm/page.h | 110 ++ arch/openrisc/include/asm/param.h | 26 + arch/openrisc/include/asm/pgalloc.h | 102 ++ arch/openrisc/include/asm/pgtable.h | 463 +++++++++ arch/openrisc/include/asm/processor.h | 113 +++ arch/openrisc/include/asm/prom.h | 77 ++ arch/openrisc/include/asm/ptrace.h | 131 +++ arch/openrisc/include/asm/serial.h | 36 + arch/openrisc/include/asm/sigcontext.h | 38 + arch/openrisc/include/asm/spinlock.h | 24 + arch/openrisc/include/asm/spr.h | 42 + arch/openrisc/include/asm/spr_defs.h | 604 +++++++++++ arch/openrisc/include/asm/syscall.h | 77 ++ arch/openrisc/include/asm/syscalls.h | 27 + arch/openrisc/include/asm/system.h | 35 + arch/openrisc/include/asm/thread_info.h | 134 +++ arch/openrisc/include/asm/timex.h | 36 + arch/openrisc/include/asm/tlb.h | 34 + arch/openrisc/include/asm/tlbflush.h | 55 + arch/openrisc/include/asm/uaccess.h | 355 +++++++ arch/openrisc/include/asm/unaligned.h | 51 + arch/openrisc/include/asm/unistd.h | 31 + arch/openrisc/kernel/Makefile | 14 + arch/openrisc/kernel/asm-offsets.c | 70 ++ arch/openrisc/kernel/dma.c | 191 ++++ arch/openrisc/kernel/entry.S | 1128 +++++++++++++++++++++ arch/openrisc/kernel/head.S | 1607 ++++++++++++++++++++++++++++++ arch/openrisc/kernel/idle.c | 77 ++ arch/openrisc/kernel/init_task.c | 41 + arch/openrisc/kernel/irq.c | 172 ++++ arch/openrisc/kernel/module.c | 72 ++ arch/openrisc/kernel/or32_ksyms.c | 46 + arch/openrisc/kernel/process.c | 311 ++++++ arch/openrisc/kernel/prom.c | 108 ++ arch/openrisc/kernel/ptrace.c | 211 ++++ arch/openrisc/kernel/setup.c | 381 +++++++ arch/openrisc/kernel/signal.c | 396 ++++++++ arch/openrisc/kernel/sys_call_table.c | 28 + arch/openrisc/kernel/sys_or32.c | 57 ++ arch/openrisc/kernel/time.c | 181 ++++ arch/openrisc/kernel/traps.c | 366 +++++++ arch/openrisc/kernel/vmlinux.h | 12 + arch/openrisc/kernel/vmlinux.lds.S | 115 +++ arch/openrisc/lib/Makefile | 5 + arch/openrisc/lib/delay.c | 60 ++ arch/openrisc/lib/string.S | 204 ++++ arch/openrisc/mm/Makefile | 5 + arch/openrisc/mm/fault.c | 338 +++++++ arch/openrisc/mm/init.c | 283 ++++++ arch/openrisc/mm/ioremap.c | 137 +++ arch/openrisc/mm/tlb.c | 193 ++++ arch/sh/include/asm/delay.h | 27 +- arch/x86/include/asm/delay.h | 25 +- include/asm-generic/delay.h | 37 +- include/asm-generic/io.h | 9 +- include/asm-generic/iomap.h | 4 + lib/iomap.c | 4 + 90 files changed, 10970 insertions(+), 104 deletions(-) create mode 100644 arch/openrisc/Kconfig create mode 100644 arch/openrisc/Makefile create mode 100644 arch/openrisc/README.openrisc create mode 100644 arch/openrisc/TODO.openrisc create mode 100644 arch/openrisc/boot/Makefile create mode 100644 arch/openrisc/boot/dts/or1ksim.dts create mode 100644 arch/openrisc/configs/or1ksim_defconfig create mode 100644 arch/openrisc/include/asm/Kbuild create mode 100644 arch/openrisc/include/asm/asm-offsets.h create mode 100644 arch/openrisc/include/asm/bitops.h create mode 100644 arch/openrisc/include/asm/bitops/__ffs.h create mode 100644 arch/openrisc/include/asm/bitops/__fls.h create mode 100644 arch/openrisc/include/asm/bitops/ffs.h create mode 100644 arch/openrisc/include/asm/bitops/fls.h create mode 100644 arch/openrisc/include/asm/byteorder.h create mode 100644 arch/openrisc/include/asm/cache.h create mode 100644 arch/openrisc/include/asm/cpuinfo.h create mode 100644 arch/openrisc/include/asm/delay.h create mode 100644 arch/openrisc/include/asm/dma-mapping.h create mode 100644 arch/openrisc/include/asm/elf.h create mode 100644 arch/openrisc/include/asm/fixmap.h create mode 100644 arch/openrisc/include/asm/gpio.h create mode 100644 arch/openrisc/include/asm/io.h create mode 100644 arch/openrisc/include/asm/irq.h create mode 100644 arch/openrisc/include/asm/irqflags.h create mode 100644 arch/openrisc/include/asm/linkage.h create mode 100644 arch/openrisc/include/asm/memblock.h create mode 100644 arch/openrisc/include/asm/mmu.h create mode 100644 arch/openrisc/include/asm/mmu_context.h create mode 100644 arch/openrisc/include/asm/mutex.h create mode 100644 arch/openrisc/include/asm/page.h create mode 100644 arch/openrisc/include/asm/param.h create mode 100644 arch/openrisc/include/asm/pgalloc.h create mode 100644 arch/openrisc/include/asm/pgtable.h create mode 100644 arch/openrisc/include/asm/processor.h create mode 100644 arch/openrisc/include/asm/prom.h create mode 100644 arch/openrisc/include/asm/ptrace.h create mode 100644 arch/openrisc/include/asm/serial.h create mode 100644 arch/openrisc/include/asm/sigcontext.h create mode 100644 arch/openrisc/include/asm/spinlock.h create mode 100644 arch/openrisc/include/asm/spr.h create mode 100644 arch/openrisc/include/asm/spr_defs.h create mode 100644 arch/openrisc/include/asm/syscall.h create mode 100644 arch/openrisc/include/asm/syscalls.h create mode 100644 arch/openrisc/include/asm/system.h create mode 100644 arch/openrisc/include/asm/thread_info.h create mode 100644 arch/openrisc/include/asm/timex.h create mode 100644 arch/openrisc/include/asm/tlb.h create mode 100644 arch/openrisc/include/asm/tlbflush.h create mode 100644 arch/openrisc/include/asm/uaccess.h create mode 100644 arch/openrisc/include/asm/unaligned.h create mode 100644 arch/openrisc/include/asm/unistd.h create mode 100644 arch/openrisc/kernel/Makefile create mode 100644 arch/openrisc/kernel/asm-offsets.c create mode 100644 arch/openrisc/kernel/dma.c create mode 100644 arch/openrisc/kernel/entry.S create mode 100644 arch/openrisc/kernel/head.S create mode 100644 arch/openrisc/kernel/idle.c create mode 100644 arch/openrisc/kernel/init_task.c create mode 100644 arch/openrisc/kernel/irq.c create mode 100644 arch/openrisc/kernel/module.c create mode 100644 arch/openrisc/kernel/or32_ksyms.c create mode 100644 arch/openrisc/kernel/process.c create mode 100644 arch/openrisc/kernel/prom.c create mode 100644 arch/openrisc/kernel/ptrace.c create mode 100644 arch/openrisc/kernel/setup.c create mode 100644 arch/openrisc/kernel/signal.c create mode 100644 arch/openrisc/kernel/sys_call_table.c create mode 100644 arch/openrisc/kernel/sys_or32.c create mode 100644 arch/openrisc/kernel/time.c create mode 100644 arch/openrisc/kernel/traps.c create mode 100644 arch/openrisc/kernel/vmlinux.h create mode 100644 arch/openrisc/kernel/vmlinux.lds.S create mode 100644 arch/openrisc/lib/Makefile create mode 100644 arch/openrisc/lib/delay.c create mode 100644 arch/openrisc/lib/string.S create mode 100644 arch/openrisc/mm/Makefile create mode 100644 arch/openrisc/mm/fault.c create mode 100644 arch/openrisc/mm/init.c create mode 100644 arch/openrisc/mm/ioremap.c create mode 100644 arch/openrisc/mm/tlb.c -- To 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