b84398d6d7f900805662b1619223fd644d862d7c
da23b6faa8bf0f1c50a0700440e9ff3f52b3bd9a

v5.4

** Changed in: intel
       Status: New => Fix Committed

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https://bugs.launchpad.net/bugs/1834410

Title:
  iTCO watchdog No Reboot bit needs to move from side band to a TCOBASE
  register bit

Status in intel:
  Fix Committed
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Description:
  CDF has the WDT No Reboot bit as bit one of P2SB.SBREG_BAR64 +CF0000h + Ch 
which is cannot be read from the OS.

  This issue manifest itself in Linux by a -EBUSY error when loading the 
iTCO_wdt driver.
  [   23.060317] intel_rapl: Found RAPL domain package
  [   23.068017] intel_rapl: RAPL package 0 domain package locked by BIOS
  [   23.080641] FAT-fs (sdb1): Volume was not properly unmounted. Some data 
may be corrupt. Please run fsck.
  [   23.203352] iTCO_vendor_support: vendor-support=0
  [   23.220844] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
  [   23.221060] iTCO_wdt iTCO_wdt: can't request region for resource [mem 
0x00c5fffc-0x00c5ffff]
  [   23.221072] iTCO_wdt: probe of iTCO_wdt failed with error -16
  [   23.224465] Adding 4194300k swap on /dev/mapper/rhel-swap.  Priority:-2 
extents:1 across:4194300k SSFS
  [   24.614448] XFS (dm-2): Mounting V5 Filesystem
  [   24.632588] XFS (dm-2): Starting recovery (logdev: internal)
  [   24.642160] XFS (dm-2): Ending recovery (logdev: internal)
  [   24.754306] RPC: Registered named UNIX socket transport module.
  [   24.760402] RPC: Registered udp transport module.
   
  In systems that have a WDAT table, this is not an issue as such table 
contains the watchdog information. However, Jacobsville will not have a WDAT 
table. Therefore, when creating the iTCO_wdt platform device (in 
drivers/i2c/busses/i2c-i801.c), we need to take care of the updated location.
   
  Please see attached document.

  This update will be available in Cedar Fork B0.

   
  This issue is being tracked in the HSD 
https://hsdes.intel.com/appstore/article/#/2007770607.

  Target Kernel: TBD
  Target Release: 19.10

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