[Bug 1080449] New: HiKey 960 fails to find rootfs on SD card - Hi6421 PMU missing
http://bugzilla.opensuse.org/show_bug.cgi?id=1080449 Bug ID: 1080449 Summary: HiKey 960 fails to find rootfs on SD card - Hi6421 PMU missing Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: aarch64 URL: https://bugs.96boards.org/show_bug.cgi?id=703 OS: openSUSE Factory Status: CONFIRMED Severity: Normal Priority: P5 - None Component: Kernel Assignee: afaerber@suse.com Reporter: afaerber@suse.com QA Contact: qa-bugs@suse.de CC: agraf@suse.com, mbrugger@suse.com, yousaf.kaukab@suse.com Found By: --- Blocker: --- Using kernel-default 4.14.15 (or 4.15.1 from Kernel:HEAD) the HiKey 960 boots into our initrd but fails to find the rootfs on SD card. Adding dw_mmc-k3 module to the dracut initrd does not help. Possible cause: Hi6421 v530 PMU drivers are missing. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1080449 http://bugzilla.opensuse.org/show_bug.cgi?id=1080449#c1 Andreas Färber <afaerber@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P4 - Low Status|CONFIRMED |IN_PROGRESS --- Comment #1 from Andreas Färber <afaerber@suse.com> --- Kconfig patch queued for master branch. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1080449 http://bugzilla.opensuse.org/show_bug.cgi?id=1080449#c2 Andreas Färber <afaerber@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bamvor.zhangjian@huawei.com --- Comment #2 from Andreas Färber <afaerber@suse.com> --- Enabling Hi6421 drivers and adding them to the initrd along with dw_mmc-k3, k3dma and reset-hi3660 gets it to boot into the rootfs. /etc/dracut.conf.d/hikey960_modules.conf: add_drivers+=" hi6421-pmic-core hi6421v530-regulator reset-hi3660 k3dma dw_mmc-k3 " It now hangs during udev: Starting udev Coldplug all Devices... [ OK ] Started udev Coldplug all Devices. [ 11.825125] cpu cpu0: failed to get clock: -2 [ 11.829524] cpufreq-dt: probe of cpufreq-dt failed with error -2 [ 11.838453] dwmmc_k3 ff3ff000.dwmmc2: 'num-slots' was deprecated. [ 11.844565] dwmmc_k3 ff3ff000.dwmmc2: fifo-depth property not found, using value of FIFOTH register as default [ 11.856736] dwmmc_k3 ff3ff000.dwmmc2: IDMAC supports 64-bit address mode. [ 11.863644] dwmmc_k3 ff3ff000.dwmmc2: Using internal DMA controller. [ 11.870015] dwmmc_k3 ff3ff000.dwmmc2: Version ID is 270a [ 11.875391] dwmmc_k3 ff3ff000.dwmmc2: DW MMC controller at irq 57,32 bit host data width,64 deep fifo [ 11.884784] mmc_host mmc1: card is non-removable. This eventually showed up once: [ 72.886593] INFO: rcu_sched detected stalls on CPUs/tasks: [ 72.892101] 0-...0: (1 GPs behind) idle=fc2/140000000000000/0 softirq=1219/1222 fqs=3000 [ 72.900362] (detected by 7, t=6002 jiffies, g=79, c=78, q=2984) [ 72.906368] Task dump for CPU 0: [ 72.909590] systemd-udevd R running task 0 427 407 0x00000822 [ 72.916639] Call trace: [ 72.919091] __switch_to+0x94/0xd8 [ 72.922489] 0xffff8000bb458568 That appears to match https://bugs.96boards.org/show_bug.cgi?id=703 behavior. If I override the DT with dtb-hisilicon 4.15.1 hi3660-hikey960.dtb then the CPU and MMC messages don't appear, but it still hangs during udev. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1080449 http://bugzilla.opensuse.org/show_bug.cgi?id=1080449#c3 Andreas Färber <afaerber@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|IN_PROGRESS |RESOLVED Resolution|--- |FIXED --- Comment #3 from Andreas Färber <afaerber@suse.com> --- With upstream .dtb at latest 4.20 has been booting. -- You are receiving this mail because: You are on the CC list for the bug.
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