29 May
2015
29 May
'15
2:54 p.m.
On 05/29/2015 02:11 AM, Fu Wei wrote: [ ... ]
status = sbsa_gwdt_cf_read(SBSA_GWDT_WCS, wdd);if (status & SBSA_GWDT_WCS_WS1) {dev_warn(dev, "System reset by WDT(WCS: %x, WCV: %llx)\n",status, sbsa_gwdt_get_wcv(wdd));Does this message (specifically the WCS / WCV values) have any useful meaning for the user ?
I think so, according to SBSA spec: If WS0 is asserted and a timeout refresh occurs then the following must occur: If the system is compliant to SBSA level 2 or higher the compare value must retain its current value. This means that the compare value records the time that WS1 is asserted.
So, I think WCV can log the time when system reset by WDT, that may help user figure out the problem. but WCS can be delete I think.
How would that help ? It is just a number with no reference to anything.
Thanks, Guenter