Hi Tom, this series adds U-Boot port to Xtensa, configurable processor architecture from Tensilica, Inc., now Cadence Design Systems Inc.
Two patches add proper xtensa bits: changes to shares files and contents of arch/xtensa. Next three patches add three sample xtensa CPU configurations: one without MMU, with MMUv2 and with MMUv3. Two more patches clean up OpenCores 10/100 MBit driver, enable it to be used with dedicated packet memory and with gigabit PHY. One more patch adds xtfpga board family that consists of Avnet LX60, LX110 and LX200 and Xilinx ML605 and KC705 FPGA boards configured with xtensa bitstream. The whole series is also available in the following git tree: git://github.com/jcmvbkbc/u-boot-xtensa.git tags/xtensa-2016.07-rc3 The port has been done mainly by Chris Zankel. I've been maintaining it internally for some time now and I'll maintain it upstream. This is my second attempt to submit it, the first one: http://lists.denx.de/pipermail/u-boot/2014-August/186771.html Changes since v1: - code rebased to v2016.07-rc3; - the port now uses generic board; - timer_get_us is implemented for CPU cores that have CCOUNT option; - functional atomic.h is provided; - both windowed and call0 ABIs are supported; - noMMU, MMUv2 and MMUv3 cores are supported; - CONFIG_OF_CONTROL is supported and DTS for the latest XTFPGA boards are provided. Please review. Chris Zankel (5): xtensa: add support for the xtensa processor architecture [1/2] xtensa: add support for the xtensa processor architecture [2/2] xtensa: add core information for the dc232b processor net/ethoc: support private memory configurations xtensa: add support for the 'xtfpga' evaluation board Max Filippov (3): xtensa: add core information for the dc233c processor xtensa: add core information for the de212 processor net/ethoc: don't advertise gigabit on the connected PHY MAINTAINERS | 5 + MAKEALL | 6 + Makefile | 10 +- arch/Kconfig | 8 + arch/xtensa/Kconfig | 29 + arch/xtensa/Makefile | 8 + arch/xtensa/config.mk | 12 + arch/xtensa/cpu/Makefile | 9 + arch/xtensa/cpu/cpu.c | 92 ++++ arch/xtensa/cpu/exceptions.c | 64 +++ arch/xtensa/cpu/start.S | 737 ++++++++++++++++++++++++++ arch/xtensa/cpu/u-boot.lds | 116 ++++ arch/xtensa/dts/Makefile | 15 + arch/xtensa/dts/include/dt-bindings | 1 + arch/xtensa/dts/kc705.dts | 15 + arch/xtensa/dts/kc705_nommu.dts | 17 + arch/xtensa/dts/ml605.dts | 15 + arch/xtensa/dts/ml605_nommu.dts | 18 + arch/xtensa/dts/xtfpga-flash-128m.dtsi | 28 + arch/xtensa/dts/xtfpga-flash-16m.dtsi | 28 + arch/xtensa/dts/xtfpga.dtsi | 137 +++++ arch/xtensa/include/asm/addrspace.h | 31 ++ arch/xtensa/include/asm/arch-dc232b/core.h | 422 +++++++++++++++ arch/xtensa/include/asm/arch-dc232b/tie-asm.h | 120 +++++ arch/xtensa/include/asm/arch-dc232b/tie.h | 129 +++++ arch/xtensa/include/asm/arch-dc233c/core.h | 475 +++++++++++++++++ arch/xtensa/include/asm/arch-dc233c/tie-asm.h | 193 +++++++ arch/xtensa/include/asm/arch-dc233c/tie.h | 150 ++++++ arch/xtensa/include/asm/arch-de212/core.h | 594 +++++++++++++++++++++ arch/xtensa/include/asm/arch-de212/tie-asm.h | 170 ++++++ arch/xtensa/include/asm/arch-de212/tie.h | 136 +++++ arch/xtensa/include/asm/asmmacro.h | 152 ++++++ arch/xtensa/include/asm/atomic.h | 55 ++ arch/xtensa/include/asm/bitops.h | 36 ++ arch/xtensa/include/asm/bootparam.h | 54 ++ arch/xtensa/include/asm/byteorder.h | 81 +++ arch/xtensa/include/asm/cache.h | 20 + arch/xtensa/include/asm/cacheasm.h | 211 ++++++++ arch/xtensa/include/asm/config.h | 24 + arch/xtensa/include/asm/errno.h | 1 + arch/xtensa/include/asm/global_data.h | 20 + arch/xtensa/include/asm/io.h | 149 ++++++ arch/xtensa/include/asm/ldscript.h | 222 ++++++++ arch/xtensa/include/asm/linkage.h | 4 + arch/xtensa/include/asm/misc.h | 20 + arch/xtensa/include/asm/posix_types.h | 74 +++ arch/xtensa/include/asm/processor.h | 11 + arch/xtensa/include/asm/ptrace.h | 133 +++++ arch/xtensa/include/asm/regs.h | 95 ++++ arch/xtensa/include/asm/sections.h | 12 + arch/xtensa/include/asm/string.h | 10 + arch/xtensa/include/asm/system.h | 27 + arch/xtensa/include/asm/types.h | 60 +++ arch/xtensa/include/asm/u-boot.h | 41 ++ arch/xtensa/include/asm/unaligned.h | 6 + arch/xtensa/include/asm/xtensa.h | 29 + arch/xtensa/lib/Makefile | 10 + arch/xtensa/lib/bootm.c | 197 +++++++ arch/xtensa/lib/misc.S | 179 +++++++ arch/xtensa/lib/time.c | 121 +++++ board/cadence/xtfpga/Kconfig | 43 ++ board/cadence/xtfpga/MAINTAINERS | 6 + board/cadence/xtfpga/Makefile | 8 + board/cadence/xtfpga/README | 125 +++++ board/cadence/xtfpga/lcd.c | 88 +++ board/cadence/xtfpga/lcd.h | 12 + board/cadence/xtfpga/xtfpga.c | 173 ++++++ cmd/bdinfo.c | 22 + common/board_f.c | 7 +- common/image.c | 1 + configs/xtfpga_defconfig | 13 + doc/README.xtensa | 100 ++++ drivers/net/ethoc.c | 97 ++++ examples/standalone/stubs.c | 47 ++ include/configs/xtfpga.h | 286 ++++++++++ include/image.h | 1 + include/linux/stat.h | 4 +- 77 files changed, 6871 insertions(+), 6 deletions(-) create mode 100644 arch/xtensa/Kconfig create mode 100644 arch/xtensa/Makefile create mode 100644 arch/xtensa/config.mk create mode 100644 arch/xtensa/cpu/Makefile create mode 100644 arch/xtensa/cpu/cpu.c create mode 100644 arch/xtensa/cpu/exceptions.c create mode 100644 arch/xtensa/cpu/start.S create mode 100644 arch/xtensa/cpu/u-boot.lds create mode 100644 arch/xtensa/dts/Makefile create mode 120000 arch/xtensa/dts/include/dt-bindings create mode 100644 arch/xtensa/dts/kc705.dts create mode 100644 arch/xtensa/dts/kc705_nommu.dts create mode 100644 arch/xtensa/dts/ml605.dts create mode 100644 arch/xtensa/dts/ml605_nommu.dts create mode 100644 arch/xtensa/dts/xtfpga-flash-128m.dtsi create mode 100644 arch/xtensa/dts/xtfpga-flash-16m.dtsi create mode 100644 arch/xtensa/dts/xtfpga.dtsi create mode 100644 arch/xtensa/include/asm/addrspace.h create mode 100644 arch/xtensa/include/asm/arch-dc232b/core.h create mode 100644 arch/xtensa/include/asm/arch-dc232b/tie-asm.h create mode 100644 arch/xtensa/include/asm/arch-dc232b/tie.h create mode 100644 arch/xtensa/include/asm/arch-dc233c/core.h create mode 100644 arch/xtensa/include/asm/arch-dc233c/tie-asm.h create mode 100644 arch/xtensa/include/asm/arch-dc233c/tie.h create mode 100644 arch/xtensa/include/asm/arch-de212/core.h create mode 100644 arch/xtensa/include/asm/arch-de212/tie-asm.h create mode 100644 arch/xtensa/include/asm/arch-de212/tie.h create mode 100644 arch/xtensa/include/asm/asmmacro.h create mode 100644 arch/xtensa/include/asm/atomic.h create mode 100644 arch/xtensa/include/asm/bitops.h create mode 100644 arch/xtensa/include/asm/bootparam.h create mode 100644 arch/xtensa/include/asm/byteorder.h create mode 100644 arch/xtensa/include/asm/cache.h create mode 100644 arch/xtensa/include/asm/cacheasm.h create mode 100644 arch/xtensa/include/asm/config.h create mode 100644 arch/xtensa/include/asm/errno.h create mode 100644 arch/xtensa/include/asm/global_data.h create mode 100644 arch/xtensa/include/asm/io.h create mode 100644 arch/xtensa/include/asm/ldscript.h create mode 100644 arch/xtensa/include/asm/linkage.h create mode 100644 arch/xtensa/include/asm/misc.h create mode 100644 arch/xtensa/include/asm/posix_types.h create mode 100644 arch/xtensa/include/asm/processor.h create mode 100644 arch/xtensa/include/asm/ptrace.h create mode 100644 arch/xtensa/include/asm/regs.h create mode 100644 arch/xtensa/include/asm/sections.h create mode 100644 arch/xtensa/include/asm/string.h create mode 100644 arch/xtensa/include/asm/system.h create mode 100644 arch/xtensa/include/asm/types.h create mode 100644 arch/xtensa/include/asm/u-boot.h create mode 100644 arch/xtensa/include/asm/unaligned.h create mode 100644 arch/xtensa/include/asm/xtensa.h create mode 100644 arch/xtensa/lib/Makefile create mode 100644 arch/xtensa/lib/bootm.c create mode 100644 arch/xtensa/lib/misc.S create mode 100644 arch/xtensa/lib/time.c create mode 100644 board/cadence/xtfpga/Kconfig create mode 100644 board/cadence/xtfpga/MAINTAINERS create mode 100644 board/cadence/xtfpga/Makefile create mode 100644 board/cadence/xtfpga/README create mode 100644 board/cadence/xtfpga/lcd.c create mode 100644 board/cadence/xtfpga/lcd.h create mode 100644 board/cadence/xtfpga/xtfpga.c create mode 100644 configs/xtfpga_defconfig create mode 100644 doc/README.xtensa create mode 100644 include/configs/xtfpga.h -- 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