Hello.
On 11/09/2015 07:18 PM, Maciej W. Rozycki wrote:
I can check if things still work correctly when routed through libata,
although it'll have to wait a couple of weeks yet at the least as I have
wired my SWARM for hardware debugging, making it not immediately bootable
and I'll be departing soon (i.e. I have no time for complicated fiddling).
The host driver itself is actually in arch/mips/sibyte/swarm/platform.c
BTW.
Note to self: it would be nice if physical rather than virtual MMIO
addresses were reported too.
Part of the problem is that everybody who is serious about using a Swarm
is using PCI PATA/SATA card, so this part receives very little TLC. I
btw. can't test because the controller on my Pass 2 board is broken ...
I think I've been reasonably serious about my SWARM and despite issues
elsewhere the onboard PATA interface is a part of the system I've never
had any with. Yes, it's limited to PIO 3, but it's not a big deal, that's
still 11MB/s (and one of the 4 generic data movers present in the SoC
If you measure it with something like 'hdparm -t', the real speed figures
in the PIO modes would disappoint you. It's usually more like 3 MB/s even in
PIO4...
could be used as a DMA engine to offload the CPU if anyone bothered
implementing that in the HBA driver).
Oh, that's nice!
MBR, Sergei
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