Hi To start off, I was using Ubuntu Core 16 on a custom-designed board that houses a RPi CM3.
This board has some peripherals such as USB, ethernet and a SD card, all of them worked. The kernel version I used on Ubuntu Core 16 was 4.4.0-1109.117 (snap is pi2-kernel tracking stable). Now I wanted to make the switch to Ubuntu Core 18, using the same overlays and configuration files, but the SD card no longer works, dmesg shows [ 4.062885] sdhci: Secure Digital Host Controller Interface driver [ 4.062888] sdhci: Copyright(c) Pierre Ossman [ 4.063074] mmc-bcm2835 3f300000.sdio: could not get clk, deferring probe [ 4.063288] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe [ 4.063344] Error: Driver 'sdhost-bcm2835' is already registered, aborting... [ 4.063353] sdhci-pltfm: SDHCI platform and OF driver helper [ 4.134639] mmc-bcm2835 3f300000.sdio: mmc_debug:0 mmc_debug2:0 [ 4.134645] mmc-bcm2835 3f300000.sdio: DMA channel allocated [ 4.171639] sdhost: log_buf @ d033dd8b (fa047000) [ 4.239344] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1) According to the snap version, the kernel I'm using is 4.15.0-1036.38 (snap is pi-kernel tracking 18-pi3). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1823655 Title: Second SD card on RPi3 CM3 on Ubuntu Core 18 does not work Status in linux-raspi2 package in Ubuntu: Incomplete Bug description: As suggested in following thread; https://forum.snapcraft.io/t/second-sd-card-on-rpi3-cm3-with-ubuntu- core-18/10465 a bug report. The configuration works for a Ubuntu Core 16 device. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1823655/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
