OpenWrt/LEDE Project

  • Status Assigned
  • Percent Complete
  • Task Type Bug Report
  • Category Kernel
  • Assigned To
    Kevin 'ldir' Darbyshire-Bryant
  • Operating System All
  • Severity Low
  • Priority Very Low
  • Reported Version Trunk
  • Due in Version Undecided
  • Due Date Undecided
  • Private
Attached to Project: OpenWrt/LEDE Project
Opened by andrew - 16.03.2020

FS#2905 - x86: RTC CMOS support is absent in kernel 5.4 .config

- Device problem occurs on booting

**dmesg | grep rtc**
[    1.041259] platform rtc_cmos: registered platform RTC device (no PNP device found)
[    2.748158] hctosys: unable to open rtc device (rtc0)

**hwclock -rv**
hwclock from util-linux 2.35.1
System Time: 1584361762.617235
Trying to open: /dev/rtc0
Trying to open: /dev/rtc
Trying to open: /dev/misc/rtc
No usable clock interface found.
hwclock: Cannot access the Hardware Clock via any known method.

- Software versions of OpenWrt/LEDE release, packages, etc. Alix 2d13 Geode LX platform

**uname -a**
Linux OpenWrt 5.4.24 #0 Sun Mar 15 20:38:05 2020 i586 GNU/Linux

At ~/openwrt/build_dir/target-i386_pentium_musl/linux-x86_geode/linux-5.4.24/.config we see:

# Platform RTC drivers
# CONFIG_RTC_DRV_CMOS is not set

- Steps to reproduce hmm... git clone && make menuconfig
changed: GCC flags -march=geode -mmmx
&& make kernel_menuconfig
&& make world

All works fine but /dev/rtc0 is absent

Project Manager
Kevin 'ldir' Darbyshire-Bryant commented on 29.03.2020 20:44

Fixed by af35205626


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