[Qemu-devel] [Qemu devel v8 PATCH 0/5] Add support for Smartfusion2 SoC

[Subbaraya Sundeep <sundeep.lkml@gmail.com>]

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.

Testing:
./arm-softmmu/qemu-system-arm -M smartfusion2-som -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:
https://github.com/Subbaraya-Sundeep/qemu-test-binaries.git

U-boot is from Emcraft with modified
    - SPI driver not to use PDMA.
    - ugly hack to pass dtb to kernel in r1.
@
https://github.com/Subbaraya-Sundeep/emcraft-uboot-sf2.git

Linux is 4.5 linux with Smartfusion2 SoC dts and clocksource
driver added by myself @
https://github.com/Subbaraya-Sundeep/linux.git

v8:
	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.

v7:
	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

v6:
    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

v5
    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.
v4:
    Fixed build failure by using PRIx macros.
v3:
    Added SoC file and board file as per Alistair comments.
v2:
    Added SPI controller so that u-boot loads kernel from spi flash.
v1:
    Initial patch set with timer and sysreg

Thanks,
Sundeep


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               | 218 ++++++++++++++++++++++
 hw/arm/msf2-som.c               |  95 ++++++++++
 hw/misc/Makefile.objs           |   1 +
 hw/misc/msf2-sysreg.c           | 195 +++++++++++++++++++
 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   |  78 ++++++++
 include/hw/ssi/mss-spi.h        |  58 ++++++
 include/hw/timer/mss-timer.h    |  64 +++++++
 14 files changed, 1472 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

-- 
2.5.0