[Qemu-devel] [PATCH v2 00/11] Aspeed SMC controller fixes and improvements

[Cédric Le Goater]

Hello,

I have reduced the patchset size to focus on some improvements of the
SMC (Flash) controller model only and will address the watchdog and
network models in other patchset.

The main benefit of this series is to enable booting directly from a
flash image containing U-Boot. It adds :

 - some minor fixes and code rearrangements 
 - Command mode support. Flash contents is accessed directly on the
   AHB bus
 - auto strapping of configuration for boot flash
 - use CE0 as a boot ROM. Today, qemu can not boot from a MMIO region.
   As this is complex to do (TCG layer modification), we use a ROM
   region in which we copy the flash contents. Hopefully, I got it
   right this time.
 - dummy bytes support for Command mode only

Still in the pipe for the SMC controller are :

 - DMA support
 - dummy bytes support in user mode (hacky)

which I will send later.

Thanks,

C.

Cédric Le Goater (11):
  aspeed/smc: remove call to reset in realize function
  aspeed/smc: remove call to aspeed_smc_update_cs() in reset function
  aspeed/smc: rework the prototype of the AspeedSMCFlash helper routines
  aspeed/smc: autostrap CE0/1 configuration
  aspeed/smc: unfold the AspeedSMCController array
  aspeed/smc: adjust the size of the register region
  aspeed/smc: handle SPI flash Command mode
  aspeed/smc: reset flash after each test
  aspeed/smc: extend tests for Command mode
  aspeed: use first SPI flash as a boot ROM
  aspeed/smc: handle dummy bytes when doing fast reads in command mode

 hw/arm/aspeed.c             |  41 ++++++
 hw/ssi/aspeed_smc.c         | 352 +++++++++++++++++++++++++++++++++++---------
 include/hw/ssi/aspeed_smc.h |   4 +-
 tests/m25p80-test.c         | 133 +++++++++++++++++
 4 files changed, 456 insertions(+), 74 deletions(-)

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2.7.4