Hi Timur,
On 23 May 2015 at 23:08, Timur Tabi timur@codeaurora.org wrote:
Arnd Bergmann wrote:
I think it's a reasonable assumption that someone will sooner or later put that hardware into an ARM32 machine,
I'm going to have to disagree. If they haven't done it by now, I can't imagine any ARM SOC vendor creating a 32-bit ARM SOC with an SBSA watchdog in it. I can imagine a vendor trying to repurpose an existing 32-bit ARM SOC for the server market, but that SOC won't have an SBSA watchdog in it.
I will agree with you on this, ONLY IF a people can represent ARM and all chip vendors say publicly: " We never ever use SBSA watchdog IP core on ARM32!" or " SBSA watchdog IP core is imcompatible with ARM32"
Although the SBSA is all about ARMv8, but in "5 APPENDIX A: GENERIC WATCHDOG", it doesn't say "this is only for ARMv8". and its clock source "system counter" and arm_arch_timer have been in ARM32 Soc for years, and all the regs in SBSA watchdog is 32bit. I can't see why we can not do that, unless I miss something.
I wonder why you are so sure "that SOC won't have an SBSA watchdog in it." any documentation ? Sorry, I am not a chip design engineer, I can't see why 32-bit ARM won't have an SBSA watchdog in it.
or run a 32-bit kernel on
a chip that has it.
That might happen, but I would be very surprised, and I would need to be convinced that it's useful.
-- 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.