From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gustav Johansson Date: Wed, 9 May 2018 12:50:41 +0000 Message-ID: <1525870225626.46003@kth.se> Content-Language: en-GB MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: [Xenomai] RPi zero: high resolution clock not working List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Xenomai@xenomai.org" Hi! I have managed to boot RPI zero with Cobalt on kernel version 4.9.51, with = ipipe #4. Im using the mainline. I used config multi_v7_defconfig and chose armv6 fro= m there. Im using the device tree bcm2835-rpi-zero.dtb During the boot I receives errors: [ 0.000027] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps ev= ery 2147483647500ns [ 0.000074] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff,= max_idle_ns: 1911260446275 ns [ 0.000698] Interrupt pipeline (release #4) [ 0.069805] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xfffffff= f, max_idle_ns: 19112604462750000 ns [ 0.107627] PTP clock support registered [ 0.111409] clocksource: Switched to clocksource timer [ 0.180098] [Xenomai] scheduling class idle registered. [ 0.180287] [Xenomai] scheduling class rt registered. [ 0.180527] I-pipe: high-resolution clock not working [ 0.180726] [Xenomai] init failed, code -19 [ 0.207251] clk: couldn't get clock 0 for /soc/pwm@7e20c000 [ 0.572597] i2c-bcm2835 20805000.i2c: Could not read clock-frequency pro= perty [ 5.063088] systemd[1]: System time before build time, advancing clock. [ 6.685798] systemd[1]: Mounting RPC Pipe File System... So the error tells me that the high-resolution clock is not working and Xen= omai failed the init with error code -19. The boot continues and I can use it as regular but /proc/xenomai does not e= xist. Any ideas on ways I can make it work? I have included the dmesg log and ker= nel config. Regards, Gustav -------------- next part -------------- A non-text attachment was scrubbed... Name: dmesg.log Type: text/x-log Size: 17028 bytes Desc: dmesg.log URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: ATT07561.config Type: application/octet-stream Size: 134322 bytes Desc: ATT07561.config URL: