On 10 June 2015 at 22:22, Timur Tabi timur@codeaurora.org wrote:
Fu Wei wrote:
Another weakness of only using WOR is the timeout limited by this 32bit register. 10s @400MHz generic Timer
I don't think this limit is good for a server, once the server is in a heavy load
Perhaps, but if that's the limitation of the hardware, then so be it.
it is not the real limitation, if we use WCV, SBSA spec has mentioned that.
------ SBSA 2.3-------Page 23 ---------- Note: the watchdog offset register is 32 bits wide. This gives a maximum watch period of around 10s at a system counter frequency of 400MHz. If a larger watch period is required then the compare value can be programmed directly into the compare value register ------ SBSA 2.3-------Page 23 ----------
if some hardware doesn't support writing WCV, that means this hardware is non-standard SBSA watchdog.
-- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation.