hi guys, had a bit of time to debug this tonight. here's my environment:
u-boot v2017.09 with lower-default-cpufreq-H5.path applied. linux mainline, modules built-in, no ramdisk it's like it doesn't find the SD card, for whatever reason. [ 8.928343] VFS: Cannot open root device "mmcblk0p1" or > unknown-block(0,0): error -6 > [ 8.936096] Please append a correct "root=" boot option; here are the > available partitions: > [ 8.944461] Kernel panic - not syncing: VFS: Unable to mount root fs on > unknown-block(0,0) > [ 8.952717] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-g5a787756b > #1 > [ 8.959579] Hardware name: Xunlong Orange Pi PC 2 (DT) > [ 8.964707] Call trace: > [ 8.967161] dump_backtrace+0x0/0x190 > [ 8.970820] show_stack+0x14/0x20 > [ 8.974134] dump_stack+0x9c/0xbc > [ 8.977448] panic+0x11c/0x290 > [ 8.980501] mount_block_root+0x190/0x264 > [ 8.984505] mount_root+0x11c/0x134 > [ 8.987989] prepare_namespace+0x12c/0x174 > [ 8.992080] kernel_init_freeable+0x200/0x224 > [ 8.996433] kernel_init+0x10/0x100 > [ 8.999919] ret_from_fork+0x10/0x18 > [ 9.003493] SMP: stopping secondary CPUs > [ 9.007411] Kernel Offset: disabled > [ 9.010896] CPU features: 0x002004 > [ 9.014290] Memory Limit: none > [ 9.017346] ---[ end Kernel panic - not syncing: VFS: Unable to mount > root fs on unknown-block(0,0) On 21 November 2017 at 08:44, Chris Obbard <obba...@gmail.com> wrote: > It is most likely the switch of the mmc regulators from a fixed one >> to the AXP regulators. >> >> Please ensure you have the AXP mfd and regulator drivers built-in. >> AFAIK the RSB variant of the AXP mfd driver does not support auto >> loading of the module. > > > I should have been more specific, I am using the Orange Pi PC2 which has > a SY8106A regulator. This is set to 1.1V by default without any comms from > kernel. > > I am unsure as to why a regulator driver change would cause my SD card to > not be found by the Kernel? On the Orange Pi PC2 the SD card is permanently > wired to 3v3. > > > Chris > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
