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    • K
      [PATCH] powerpc: Add support for the MPC83xx watchdog · fabbfb9e
      Kumar Gala 提交于
      Add support for the PowerPC MPC83xx watchdog.  The MPC83xx has a simple
      watchdog that once enabled it can not be stopped, has some simple timeout
      range selection, and the ability to either reset the processor or take a
      machine check.
      Signed-off-by: NDave Updegraff <dave@cray.org>
      Signed-off-by: NKumar Gala <galak@kernel.crashing.org>
      Cc: Wim Van Sebroeck <wim@iguana.be>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Paul Mackerras <paulus@samba.org>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      fabbfb9e
    • C
      [PATCH] Watchdog: Winsystems EPX-C3 SBC · eed6565f
      Calin A. Culianu 提交于
      This is a 2.6 patch that adds support for the watchdog timer built into the
      EPX-C3 single board computer manufactured by Winsystems, Inc.
      
      Driver details:
      
      This is for x86 only.  This watchdog is pretty basic and simple.  It is
      only configurable via jumpers on the SBC, and it only has either a 1.5s or
      200s interval.  The watchdog can either be auto-configured to start as soon
      as the machine powers up (bad idea for the 1.5s interval!) or it can be
      enabled and disabled by writing to io port 0x1ee.  Petting the watchdog
      involves writing any value to io port 0x1ef.
      
      The only unfortunate thing about this watchdog (and it is not at all
      uncommmon in watchdogs that linux supports) is that it is not a PCI or
      ISA-PNP device and as such it isn't at all probeable.  Either the watchdog
      exists as 2 bytes at 0x1ee, or it doesn't.  Thus, using this driver on a
      machine that doesn't have that watchdog can potentially hang/crash the
      system, etc.  So only use this driver if you in fact are on a Winsystems
      EPX-C3 SBC.
      
      Anyway this driver fits into the already-existing watchdog framework quite
      nicely and I already tested it on my EPX-C3 and it works like a charm.
      Signed-off-by: NCalin A. Culianu <calin@ajvar.org>
      Signed-off-by: NAndrew Morton <akpm@osdl.org>
      Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
      eed6565f