This patch set introduces preliminary support for Cavium Networks' OCTEON processor family. More information about these processors may be obtained here: http://www.caviumnetworks.com/OCTEON_MIPS64.html This initial patch set adds support for booting an initramfs to a serial console. Follow-on patch sets will add support for the on-chip ethernet, USB, PCI, PCIe, I2c and other peripherals. With this second version of the patches I think we have fixed or removed the parts flagged as objectionable in the first round of reviews. In addition to more general cleanups I fixed the following issues: * externs declared in mm/fault.c moved to fpu_emulator.h * Corrected spelling of hazard in patch commentary. * Useless checking in pmd_none removed. * ebase calculation generalized. * ST0_KX setting for 32bit kernel removed (there is now no 32bit kernel support) Without further ado, I will reply with the following 36 patches (5 of which will also go to linux-serial): 01 - Add Cavium OCTEON processor support files to arch/mips/cavium-octeon. 02 - Add Cavium OCTEON files to arch/mips/include/asm/mach-cavium-octeon 03 - Add Cavium OCTEON processor support files to arch/mips/kernel. 04 - Add Cavium OCTEON processor support files to arch/mips/mm. 05 - Add Cavium OCTEON processor support files to and arch/mips/cavium-octeon/executive 06 - Add Cavium OCTEON processor CSR definitions 07 - Don't assume boot CPU is CPU0 if MIPS_DISABLE_BOOT_CPU_ZERO set. 08 - For Cavium OCTEON handle hazards as per the R10000 handling. 09 - Enable mips32 style bitops for Cavium OCTEON. 10 - Cavium OCTEON: Set hwrena and lazily restore CP2 state. 11 - MIPSR2 ebase isn't just CAC_BASE 12 - Add Cavium OCTEON to arch/mips/Kconfig 13 - Add Cavium OCTEON processor constants. 14 - Rewrite cpu_to_name so it has one statement per line. 15 - Probe for Cavium OCTEON CPUs. 16 - MIPS: Hook Cavium OCTEON cache init into cache.c 17 - cavium: Hook Cavium specifics into main arch/mips dir 18 - Cavium OCTEON modify core io.h macros to account for the Octeon Errata Core-301. 19 - Cavium OCTEON: increase MAX_DMA address. 20 - Cavium OCTEON: add in icache and dcache error functions. 21 - Cavium OCTEON: Add cop2/cvmseg state entries to processor.h. 22 - Add Cavium OCTEON specific registers to ptrace.h and asm-offsets.c 23 - Add SMP_ICACHE_FLUSH for the Cavium CPU family. 24 - Cavium OCTEON: PT vs MFC0 reorder, multiplier state preservation. 25 - Add Cavium OCTEON irq hazard in asmmacro.h. 26 - Compute branch returns for Cavium OCTEON specific branch instructions. 27 - Add Cavium OCTEON slot into proper tlb category. 28 - MIPS: move FPU emulator externs to fpu_emulator.h 29 - Cavium OCTEON FPU EMU exception as TLB exception These five to linux-serial, linux-kernel, and akpm as well: 30 - Don't clobber spinlocks in 8250. 31 - Generic 8250 serial driver changes to support future OCTEON serial patches. 32 - Allow port type to be specified when calling serial8250_register_port. 33 - Allow port type to specify bugs that are not probed for. 34 - 8250 serial driver changes for Cavium OCTEON. 35 - Adjust the dma-common.c platform hooks. 36 - Add defconfig for Cavium OCTEON. arch/mips/Kconfig | 74 +- arch/mips/Makefile | 13 + arch/mips/cavium-octeon/Kconfig | 85 + arch/mips/cavium-octeon/Makefile | 21 + arch/mips/cavium-octeon/console.c | 34 + arch/mips/cavium-octeon/dma-octeon.c | 324 + arch/mips/cavium-octeon/executive/Makefile | 26 + arch/mips/cavium-octeon/executive/cvmx-asm.h | 427 + arch/mips/cavium-octeon/executive/cvmx-bootinfo.h | 238 + arch/mips/cavium-octeon/executive/cvmx-bootmem.c | 897 + arch/mips/cavium-octeon/executive/cvmx-bootmem.h | 403 + .../cavium-octeon/executive/cvmx-csr-addresses.h | 8391 ++++++ arch/mips/cavium-octeon/executive/cvmx-csr-enums.h | 86 + .../cavium-octeon/executive/cvmx-csr-typedefs.h |27517 ++++++++++++++++++++ arch/mips/cavium-octeon/executive/cvmx-csr.h | 199 + arch/mips/cavium-octeon/executive/cvmx-interrupt.h | 255 + arch/mips/cavium-octeon/executive/cvmx-l2c.c | 711 + arch/mips/cavium-octeon/executive/cvmx-l2c.h | 328 + .../executive/cvmx-linux-kernel-exports.c | 30 + arch/mips/cavium-octeon/executive/cvmx-packet.h | 64 + arch/mips/cavium-octeon/executive/cvmx-platform.h | 56 + arch/mips/cavium-octeon/executive/cvmx-spinlock.h | 376 + arch/mips/cavium-octeon/executive/cvmx-sysinfo.c | 113 + arch/mips/cavium-octeon/executive/cvmx-sysinfo.h | 144 + arch/mips/cavium-octeon/executive/cvmx-warn.c | 44 + arch/mips/cavium-octeon/executive/cvmx-warn.h | 46 + arch/mips/cavium-octeon/executive/cvmx.h | 772 + arch/mips/cavium-octeon/executive/octeon-feature.h | 120 + arch/mips/cavium-octeon/executive/octeon-model.c | 328 + arch/mips/cavium-octeon/executive/octeon-model.h | 225 + arch/mips/cavium-octeon/flash_setup.c | 76 + arch/mips/cavium-octeon/hal.c | 496 + arch/mips/cavium-octeon/hal.h | 190 + arch/mips/cavium-octeon/i8259.c | 180 + arch/mips/cavium-octeon/irq.c | 61 + arch/mips/cavium-octeon/octeon-memcpy.S | 521 + arch/mips/cavium-octeon/serial.c | 187 + arch/mips/cavium-octeon/setup.c | 387 + arch/mips/cavium-octeon/smp.c | 231 + arch/mips/cavium-octeon/userio.c | 156 + arch/mips/configs/cavium-octeon_defconfig | 1160 + arch/mips/include/asm/asmmacro.h | 10 + arch/mips/include/asm/bitops.h | 3 +- arch/mips/include/asm/cpu-features.h | 7 + arch/mips/include/asm/cpu.h | 14 + arch/mips/include/asm/dma.h | 7 + arch/mips/include/asm/fpu_emulator.h | 5 + arch/mips/include/asm/hazards.h | 4 +- arch/mips/include/asm/io.h | 14 + .../asm/mach-cavium-octeon/cpu-feature-overrides.h | 63 + .../include/asm/mach-cavium-octeon/dma-coherence.h | 64 + arch/mips/include/asm/mach-cavium-octeon/irq.h | 253 + .../asm/mach-cavium-octeon/kernel-entry-init.h | 140 + .../asm/mach-cavium-octeon/octeon-hal-read-write.h | 38 + arch/mips/include/asm/mach-cavium-octeon/war.h | 26 + arch/mips/include/asm/mach-generic/dma-coherence.h | 26 +- arch/mips/include/asm/mach-ip27/dma-coherence.h | 26 +- arch/mips/include/asm/mach-ip32/dma-coherence.h | 26 +- arch/mips/include/asm/mach-jazz/dma-coherence.h | 26 +- arch/mips/include/asm/mach-lemote/dma-coherence.h | 26 +- arch/mips/include/asm/mipsregs.h | 5 + arch/mips/include/asm/module.h | 2 + arch/mips/include/asm/processor.h | 69 + arch/mips/include/asm/ptrace.h | 4 + arch/mips/include/asm/smp.h | 3 + arch/mips/include/asm/stackframe.h | 46 + arch/mips/kernel/Makefile | 9 + arch/mips/kernel/asm-offsets.c | 31 + arch/mips/kernel/branch.c | 33 + arch/mips/kernel/cpu-probe.c | 182 +- arch/mips/kernel/irq-octeon.c | 464 + arch/mips/kernel/octeon_switch.S | 506 + arch/mips/kernel/smp.c | 2 + arch/mips/kernel/traps.c | 34 +- arch/mips/kernel/unaligned.c | 2 +- arch/mips/lib/Makefile | 1 + arch/mips/math-emu/dsemul.h | 1 - arch/mips/mm/Makefile | 5 + arch/mips/mm/c-octeon.c | 309 + arch/mips/mm/cache.c | 6 + arch/mips/mm/cex-oct.S | 70 + arch/mips/mm/dma-default.c | 24 +- arch/mips/mm/fault.c | 16 + arch/mips/mm/tlbex.c | 1 + drivers/serial/8250.c | 233 +- drivers/serial/8250.h | 3 + drivers/serial/serial_core.c | 7 +- include/linux/serial_8250.h | 2 + include/linux/serial_core.h | 7 +- include/linux/serial_reg.h | 6 + 90 files changed, 48682 insertions(+), 171 deletions(-) create mode 100644 arch/mips/cavium-octeon/Kconfig create mode 100644 arch/mips/cavium-octeon/Makefile create mode 100644 arch/mips/cavium-octeon/console.c create mode 100644 arch/mips/cavium-octeon/dma-octeon.c create mode 100644 arch/mips/cavium-octeon/executive/Makefile create mode 100644 arch/mips/cavium-octeon/executive/cvmx-asm.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-bootinfo.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-bootmem.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-bootmem.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-csr-addresses.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-csr-enums.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-csr-typedefs.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-csr.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-interrupt.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-l2c.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-l2c.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-linux-kernel-exports.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-packet.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-platform.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-spinlock.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-sysinfo.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-sysinfo.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx-warn.c create mode 100644 arch/mips/cavium-octeon/executive/cvmx-warn.h create mode 100644 arch/mips/cavium-octeon/executive/cvmx.h create mode 100644 arch/mips/cavium-octeon/executive/octeon-feature.h create mode 100644 arch/mips/cavium-octeon/executive/octeon-model.c create mode 100644 arch/mips/cavium-octeon/executive/octeon-model.h create mode 100644 arch/mips/cavium-octeon/flash_setup.c create mode 100644 arch/mips/cavium-octeon/hal.c create mode 100644 arch/mips/cavium-octeon/hal.h create mode 100644 arch/mips/cavium-octeon/i8259.c create mode 100644 arch/mips/cavium-octeon/irq.c create mode 100644 arch/mips/cavium-octeon/octeon-memcpy.S create mode 100644 arch/mips/cavium-octeon/serial.c create mode 100644 arch/mips/cavium-octeon/setup.c create mode 100644 arch/mips/cavium-octeon/smp.c create mode 100644 arch/mips/cavium-octeon/userio.c create mode 100644 arch/mips/configs/cavium-octeon_defconfig create mode 100644 arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/irq.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/octeon-hal-read-write.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/war.h create mode 100644 arch/mips/kernel/irq-octeon.c create mode 100644 arch/mips/kernel/octeon_switch.S create mode 100644 arch/mips/mm/c-octeon.c create mode 100644 arch/mips/mm/cex-oct.S
