* rtc rtc0: Timeout trying to get valid LPSRT Counter read @ 2020-01-02 8:40 JH 2020-01-12 11:03 ` Alexandre Belloni 0 siblings, 1 reply; 9+ messages in thread From: JH @ 2020-01-02 8:40 UTC (permalink / raw) To: linux-rtc Hi, I am running kernel 4.19 on imx6, could anyone help for clues what that error is about? What I could be missing and how to fix it? Thank you. Kind regards, - jh ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-02 8:40 rtc rtc0: Timeout trying to get valid LPSRT Counter read JH @ 2020-01-12 11:03 ` Alexandre Belloni 2020-01-30 2:36 ` JH 0 siblings, 1 reply; 9+ messages in thread From: Alexandre Belloni @ 2020-01-12 11:03 UTC (permalink / raw) To: JH; +Cc: linux-rtc Hi, On 02/01/2020 19:40:10+1100, JH wrote: > Hi, > > I am running kernel 4.19 on imx6, could anyone help for clues what > that error is about? What I could be missing and how to fix it? > I'd say that you have an issue with the 32k clock or tamper detection, have a look at this commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd7f3a249dbed2858e6c2f30e5be7f1f7a709ee2 -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-12 11:03 ` Alexandre Belloni @ 2020-01-30 2:36 ` JH 2020-01-30 10:47 ` Alexandre Belloni 0 siblings, 1 reply; 9+ messages in thread From: JH @ 2020-01-30 2:36 UTC (permalink / raw) To: Alexandre Belloni; +Cc: linux-rtc Hi Alexandre, Thanks for your response. On 1/12/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > Hi, > > On 02/01/2020 19:40:10+1100, JH wrote: >> Hi, >> >> I am running kernel 4.19 on imx6, could anyone help for clues what >> that error is about? What I could be missing and how to fix it? >> > > I'd say that you have an issue with the 32k clock or tamper detection, > have a look at this commit: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd7f3a249dbed2858e6c2f30e5be7f1f7a709ee2 Is that a patch for 4.19.75? Or where can I download the patch for 4.19.75? Thank you so much for the help. Kind regards, - jh > > -- > Alexandre Belloni, Bootlin > Embedded Linux and Kernel engineering > https://bootlin.com > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-30 2:36 ` JH @ 2020-01-30 10:47 ` Alexandre Belloni 2020-01-30 11:27 ` JH 0 siblings, 1 reply; 9+ messages in thread From: Alexandre Belloni @ 2020-01-30 10:47 UTC (permalink / raw) To: JH; +Cc: linux-rtc On 30/01/2020 13:36:26+1100, JH wrote: > Hi Alexandre, > > Thanks for your response. > > On 1/12/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > Hi, > > > > On 02/01/2020 19:40:10+1100, JH wrote: > >> Hi, > >> > >> I am running kernel 4.19 on imx6, could anyone help for clues what > >> that error is about? What I could be missing and how to fix it? > >> > > > > I'd say that you have an issue with the 32k clock or tamper detection, > > have a look at this commit: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd7f3a249dbed2858e6c2f30e5be7f1f7a709ee2 > > Is that a patch for 4.19.75? Or where can I download the patch for 4.19.75? > This patch was included in 4.19. It introduced the message you are seeing and the commit message explains why you are seeing it. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-30 10:47 ` Alexandre Belloni @ 2020-01-30 11:27 ` JH 2020-01-30 14:40 ` Alexandre Belloni 0 siblings, 1 reply; 9+ messages in thread From: JH @ 2020-01-30 11:27 UTC (permalink / raw) To: Alexandre Belloni; +Cc: linux-rtc Hi Alexandre, On 1/30/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > On 30/01/2020 13:36:26+1100, JH wrote: >> Hi Alexandre, >> >> Thanks for your response. >> >> On 1/12/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: >> > Hi, >> > >> > On 02/01/2020 19:40:10+1100, JH wrote: >> >> Hi, >> >> >> >> I am running kernel 4.19 on imx6, could anyone help for clues what >> >> that error is about? What I could be missing and how to fix it? >> >> >> > >> > I'd say that you have an issue with the 32k clock or tamper detection, >> > have a look at this commit: >> > >> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd7f3a249dbed2858e6c2f30e5be7f1f7a709ee2 >> >> Is that a patch for 4.19.75? Or where can I download the patch for >> 4.19.75? >> > > This patch was included in 4.19. It introduced the message you are > seeing and the commit message explains why you are seeing it. So it was already included in 4.19, I don't need to patch it, that is good :-). Sorry I am still not clear how to stop that error message of "rtc rtc0: Timeout trying to get valid LPSRT Counter read", the message says "To avoid kernel hangs, put in timeouts", I am running kernel 4.19.75 on iMX6, where should I put in timeouts? Thank you very much for your kind help. Kind regards, - jupiter > > -- > Alexandre Belloni, Bootlin > Embedded Linux and Kernel engineering > https://bootlin.com > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-30 11:27 ` JH @ 2020-01-30 14:40 ` Alexandre Belloni 2020-01-31 5:27 ` JH 0 siblings, 1 reply; 9+ messages in thread From: Alexandre Belloni @ 2020-01-30 14:40 UTC (permalink / raw) To: JH; +Cc: linux-rtc On 30/01/2020 22:27:37+1100, JH wrote: > Hi Alexandre, > > On 1/30/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > > On 30/01/2020 13:36:26+1100, JH wrote: > >> Hi Alexandre, > >> > >> Thanks for your response. > >> > >> On 1/12/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > >> > Hi, > >> > > >> > On 02/01/2020 19:40:10+1100, JH wrote: > >> >> Hi, > >> >> > >> >> I am running kernel 4.19 on imx6, could anyone help for clues what > >> >> that error is about? What I could be missing and how to fix it? > >> >> > >> > > >> > I'd say that you have an issue with the 32k clock or tamper detection, > >> > have a look at this commit: > >> > > >> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cd7f3a249dbed2858e6c2f30e5be7f1f7a709ee2 > >> > >> Is that a patch for 4.19.75? Or where can I download the patch for > >> 4.19.75? > >> > > > > This patch was included in 4.19. It introduced the message you are > > seeing and the commit message explains why you are seeing it. > > So it was already included in 4.19, I don't need to patch it, that is > good :-). Sorry I am still not clear how to stop that error message of > "rtc rtc0: Timeout trying to get valid LPSRT Counter read", the > message says "To avoid kernel hangs, put in timeouts", I am running > kernel 4.19.75 on iMX6, where should I put in timeouts? > The patch is adding the timeouts, without them, your kernel would be freezing. I'd say your issue is the 32k clock. -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-30 14:40 ` Alexandre Belloni @ 2020-01-31 5:27 ` JH 2020-01-31 14:13 ` Alexandre Belloni 0 siblings, 1 reply; 9+ messages in thread From: JH @ 2020-01-31 5:27 UTC (permalink / raw) To: Alexandre Belloni; +Cc: linux-rtc Hi Alexandre, On 1/31/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: >> So it was already included in 4.19, I don't need to patch it, that is >> good :-). Sorry I am still not clear how to stop that error message of >> "rtc rtc0: Timeout trying to get valid LPSRT Counter read", the >> message says "To avoid kernel hangs, put in timeouts", I am running >> kernel 4.19.75 on iMX6, where should I put in timeouts? >> > > The patch is adding the timeouts, without them, your kernel would be > freezing. I'd say your issue is the 32k clock. Did you mean that is the issue of the hardware setup IMX6ULL for 32k RTC_XTALI? That is nominal frequency 32.768 kHz for IMX6ULL EVK and customized devices. Change to which frequency (64k?) can fix the problem and remove the error message? Thank you very much Alexandre, Kind regards, - jupiter > > -- > Alexandre Belloni, Bootlin > Embedded Linux and Kernel engineering > https://bootlin.com > ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-31 5:27 ` JH @ 2020-01-31 14:13 ` Alexandre Belloni 2020-01-31 23:36 ` JH 0 siblings, 1 reply; 9+ messages in thread From: Alexandre Belloni @ 2020-01-31 14:13 UTC (permalink / raw) To: JH; +Cc: linux-rtc On 31/01/2020 16:27:15+1100, JH wrote: > Hi Alexandre, > > On 1/31/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > >> So it was already included in 4.19, I don't need to patch it, that is > >> good :-). Sorry I am still not clear how to stop that error message of > >> "rtc rtc0: Timeout trying to get valid LPSRT Counter read", the > >> message says "To avoid kernel hangs, put in timeouts", I am running > >> kernel 4.19.75 on iMX6, where should I put in timeouts? > >> > > > > The patch is adding the timeouts, without them, your kernel would be > > freezing. I'd say your issue is the 32k clock. > > Did you mean that is the issue of the hardware setup IMX6ULL for 32k > RTC_XTALI? That is nominal frequency 32.768 kHz for IMX6ULL EVK and > customized devices. Change to which frequency (64k?) can fix the > problem and remove the error message? > I can't help much more without seeing the schematics of your particular board. 32k is the correct frequency but are your sure it is going to the RTC? Are you sure you have power on VDD_SNVS_IN? Was there a security violation detected? -- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com ^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: rtc rtc0: Timeout trying to get valid LPSRT Counter read 2020-01-31 14:13 ` Alexandre Belloni @ 2020-01-31 23:36 ` JH 0 siblings, 0 replies; 9+ messages in thread From: JH @ 2020-01-31 23:36 UTC (permalink / raw) To: Alexandre Belloni; +Cc: linux-rtc Hi Alexandre, On 2/1/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: > On 31/01/2020 16:27:15+1100, JH wrote: >> Hi Alexandre, >> >> On 1/31/20, Alexandre Belloni <alexandre.belloni@bootlin.com> wrote: >> >> So it was already included in 4.19, I don't need to patch it, that is >> >> good :-). Sorry I am still not clear how to stop that error message of >> >> "rtc rtc0: Timeout trying to get valid LPSRT Counter read", the >> >> message says "To avoid kernel hangs, put in timeouts", I am running >> >> kernel 4.19.75 on iMX6, where should I put in timeouts? >> >> >> > >> > The patch is adding the timeouts, without them, your kernel would be >> > freezing. I'd say your issue is the 32k clock. >> >> Did you mean that is the issue of the hardware setup IMX6ULL for 32k >> RTC_XTALI? That is nominal frequency 32.768 kHz for IMX6ULL EVK and >> customized devices. Change to which frequency (64k?) can fix the >> problem and remove the error message? >> > > I can't help much more without seeing the schematics of your particular > board. 32k is the correct frequency but are your sure it is going to the > RTC? Are you sure you have power on VDD_SNVS_IN? Was there a security > violation detected? The XTALI and XTALO is connected to 24 MHz Y501 XTALI Oscillator, the RTC_XTALI and RTC_XTALO is connected to Y502 32.768KHZ crystal. Don't know about VDD_SNVS_IN, The hardware was designed by an experienced hardware engineers, I am not sure if they could make any silly mistakes. Thank you Alexandre, Kind regards, - jh ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2020-01-31 23:36 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-01-02 8:40 rtc rtc0: Timeout trying to get valid LPSRT Counter read JH 2020-01-12 11:03 ` Alexandre Belloni 2020-01-30 2:36 ` JH 2020-01-30 10:47 ` Alexandre Belloni 2020-01-30 11:27 ` JH 2020-01-30 14:40 ` Alexandre Belloni 2020-01-31 5:27 ` JH 2020-01-31 14:13 ` Alexandre Belloni 2020-01-31 23:36 ` JH
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).