This series introduces support for the MIPS Boston development board. It begins by introducing support for moving MIPS Coherence Manager GCRs which Boston software typically does to avoid conflicting with its flash memory region. An API is then added to retrieve the emulated MIPS GIC timer frequency, which is used to report system clock frequency to software via "platform registers" which the Boston board provides. An issue with the MIPS GIC that current Boston Linux kernels encounter is fixed, and an API introduced to allow the board to determine whether the MIPS CPS hardware is supported.
The last 3 patches are more extensive, providing support for the FIT image format used with Boston, the Xilinx PCIe controller which Boston boards include 3 of, and finally the Boston board support itself. This can be tested with either U-Boot or Linux if desired. U-Boot support is available in the following patchset: https://www.mail-archive.com/u-boot@lists.denx.de/msg221003.html Linux kernel support can be found as part of the generic kernel patchset: https://www.linux-mips.org/archives/linux-mips/2016-08/msg00456.html Hopefully this will be merged for v4.9, but it can also be found in a downstream kernel from Imagination Technologies in the "eng" branch of: git://git.linux-mips.org/pub/scm/linux-mti.git Linux may be built with: $ make 64r6el_defconfig $ make The arch/mips/boot/vmlinux.gz.itb image may then be provided to QEMU's -kernel argument, for example: $ qemu-system-mips64el -M boston -kernel vmlinux.gz.itb -serial stdio Paul Burton (8): hw/mips_cmgcr: allow GCR base to be moved hw/mips_gictimer: provide API for retrieving frequency hw/mips_gic: Update pin state on mask changes target-mips: Provide function to test if a CPU supports an ISA dtc: Update requirement to v1.4.2 loader: Support Flattened Image Trees (FIT images) hw: xilinx-pcie: Add support for Xilinx AXI PCIe Controller hw/mips: MIPS Boston board support configure | 8 +- default-configs/mips-softmmu-common.mak | 2 + dtc | 2 +- hw/core/Makefile.objs | 1 + hw/core/loader-fit.c | 287 +++++++++++++++++ hw/core/loader.c | 3 +- hw/intc/mips_gic.c | 56 ++-- hw/mips/Makefile.objs | 1 + hw/mips/boston.c | 526 ++++++++++++++++++++++++++++++++ hw/misc/mips_cmgcr.c | 17 ++ hw/pci-host/Makefile.objs | 1 + hw/pci-host/xilinx-pcie.c | 310 +++++++++++++++++++ hw/timer/mips_gictimer.c | 5 + include/hw/loader-fit.h | 41 +++ include/hw/loader.h | 2 + include/hw/misc/mips_cmgcr.h | 3 + include/hw/pci-host/xilinx-pcie.h | 102 +++++++ include/hw/timer/mips_gictimer.h | 1 + target-mips/cpu.h | 1 + target-mips/translate.c | 10 + 20 files changed, 1347 insertions(+), 32 deletions(-) create mode 100644 hw/core/loader-fit.c create mode 100644 hw/mips/boston.c create mode 100644 hw/pci-host/xilinx-pcie.c create mode 100644 include/hw/loader-fit.h create mode 100644 include/hw/pci-host/xilinx-pcie.h -- 2.9.3
