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[Qemu-devel] [Qemu devel v10 PATCH 0/5] Add support for Smartfusion2 SoC

From: Subbaraya Sundeep
Subject: [Qemu-devel] [Qemu devel v10 PATCH 0/5] Add support for Smartfusion2 SoC
Date: Tue, 19 Sep 2017 00:53:16 +0530

Hi Qemu-devel,

I am trying to add Smartfusion2 SoC.
SoC is from Microsemi and System on Module(SOM)
board is from Emcraft systems. Smartfusion2 has hardened
Microcontroller(Cortex-M3)based Sub System and FPGA fabric.
At the moment only system timer, sysreg and SPI
controller are modelled.

./arm-softmmu/qemu-system-arm -M emcraft-sf2 -serial mon:stdio \
-kernel u-boot.bin -display none -drive file=spi.bin,if=mtd,format=raw

Binaries u-boot.bin and spi.bin are at:

U-boot is from Emcraft with modified
    - SPI driver not to use PDMA.
    - ugly hack to pass dtb to kernel in r1.

Linux is 4.5 linux with Smartfusion2 SoC dts and clocksource
driver added by myself @

        Added msf2_sysreg_realize in msf2-sysreg.c
        modified unimplemented devices names:
                pdma->dma and hpdma->hs-dma
        used uint8_t for apb divisors properties
        simplified msf2_divbits() using ctz32()

        used trace instead of DB_PRINT in msf2-sysreg.c
        used LOG_UNIMP for non guest errors in msf2-sysreg.c
        added unimplemented devices in msf2-soc.c
        removed .alias suffix in alias memory region name for eNVM
        removed mc->ignore_memory_transaction_failures in msf2-som.c

        memory_region_init_ram to memory_region_init_rom in soc
        %s/emcraft_sf2_init/emcraft_sf2_s2s010_init/g in som
        Added mc->ignore_memory_transaction_failures = true in som
                as per latest commit.
        Code simplifications as suggested by Alistair in sysreg and ssi.

        Removed vmstate_register_ram_global as per latest commit
        Moved header files to C which are local to C source files
        Removed abort() from msf2-sysreg.c
        Added VMStateDescription in mss-timer.c

    Moved some defines from header files to source files
    Added properties m3clk, apb0div, apb0div1 properties
    to soc.
    Added properties apb0divisor, apb1divisor to sysreg
    Update system_clock_source in msf2-soc.c
    Changed machine name smartfusion2-som->emcraft-sf2

    As per Philippe comments:
        Added abort in Sysreg if guest tries to remap memory
        other than default mapping.
        Use of CONFIG_MSF2 in Makefile for soc.c
        Fixed incorrect logic in timer model.
        Renamed msf2-timer.c -> mss-timer.c
                msf2-spi.c -> mss-spi.c also type names
        Renamed function msf2_init->emcraft_sf2_init in msf2-som.c
        Added part-name,eNVM-size,eSRAM-size,pclk0 and pclk1
            properties to soc.
        Pass soc part-name,memory size and clock rate properties from som.
    Fixed build failure by using PRIx macros.
    Added SoC file and board file as per Alistair comments.
    Added SPI controller so that u-boot loads kernel from spi flash.
    Initial patch set with timer and sysreg


Subbaraya Sundeep (5):
  msf2: Add Smartfusion2 System timer
  msf2: Microsemi Smartfusion2 System Register block
  msf2: Add Smartfusion2 SPI controller
  msf2: Add Smartfusion2 SoC
  msf2: Add Emcraft's Smartfusion2 SOM kit

 default-configs/arm-softmmu.mak |   1 +
 hw/arm/Makefile.objs            |   1 +
 hw/arm/msf2-soc.c               | 232 +++++++++++++++++++++++
 hw/arm/msf2-som.c               |  94 ++++++++++
 hw/misc/Makefile.objs           |   1 +
 hw/misc/msf2-sysreg.c           | 160 ++++++++++++++++
 hw/misc/trace-events            |   5 +
 hw/ssi/Makefile.objs            |   1 +
 hw/ssi/mss-spi.c                | 404 ++++++++++++++++++++++++++++++++++++++++
 hw/timer/Makefile.objs          |   1 +
 hw/timer/mss-timer.c            | 289 ++++++++++++++++++++++++++++
 include/hw/arm/msf2-soc.h       |  66 +++++++
 include/hw/misc/msf2-sysreg.h   |  77 ++++++++
 include/hw/ssi/mss-spi.h        |  58 ++++++
 include/hw/timer/mss-timer.h    |  64 +++++++
 15 files changed, 1454 insertions(+)
 create mode 100644 hw/arm/msf2-soc.c
 create mode 100644 hw/arm/msf2-som.c
 create mode 100644 hw/misc/msf2-sysreg.c
 create mode 100644 hw/ssi/mss-spi.c
 create mode 100644 hw/timer/mss-timer.c
 create mode 100644 include/hw/arm/msf2-soc.h
 create mode 100644 include/hw/misc/msf2-sysreg.h
 create mode 100644 include/hw/ssi/mss-spi.h
 create mode 100644 include/hw/timer/mss-timer.h


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