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From: Sam Leffler <sam@FreeBSD.org>
Date: Tue, 23 Jun 2009 19:29:23 +0000 (UTC)
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Subject: cvs commit: src/sys/arm/xscale/ixp425 avila_ata.c
	cambria_exp_space.c
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sam         2009-06-23 19:29:23 UTC

  FreeBSD src repository

  Modified files:
    sys/arm/xscale/ixp425 avila_ata.c cambria_exp_space.c 
  Log:
  SVN rev 194753 on 2009-06-23 19:29:23Z by sam
  
  Now that we have UARTs running with fast interrupt handlers the ata
  driver's i/o ops must be locked to avoid chaos.  Extend the cambria
  bus tag to support ata and add a spin lock.  The ata driver is
  hacked to use that instead of it's builtin hack for ixp425.  Once
  the ata driver is fixed to not be confused about byte order we can
  generalize the cambria bus tag code and make it generally useful.
  
  While here take advantage of our being ixp435-specific to remove
  delays when switching between byte+word accesses and to eliminate
  the 2us delay for the uarts (the spin lock overhead looks to do
  this for us).
  
  Revision  Changes    Path
  1.9       +35 -25    src/sys/arm/xscale/ixp425/avila_ata.c
  1.2       +173 -10   src/sys/arm/xscale/ixp425/cambria_exp_space.c