Kernel 5.10 PX30 Device Tree issues

[StefanLellwitz]

Hi Jeffy,
There are some issues with compiling Kernel 5.10 Device Tree on PX30 (e. g. non-existent nodes / labels). I think this would require some patching from Rockchip.
However, I have temporarily created some patch as a workaround to be able to build the dtb. But unfortunately the Kernel won't boot:

...
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] random: get_random_bytes called from start_kernel+0x3d8/0x5c4 with crng_init=0
[    0.000000] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[    0.000000] Mem abort info:
[    0.000000]   ESR = 0x96000005
[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits
[    0.000000]   SET = 0, FnV = 0
[    0.000000]   EA = 0, S1PTW = 0
[    0.000000] Data abort info:
[    0.000000]   ISV = 0, ISS = 0x00000005
[    0.000000]   CM = 0, WnR = 0
[    0.000000] [0000000000000008] user address but active_mm is swapper
[    0.000000] Internal error: Oops: 96000005 [#1] SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.66-rockchip-standard #1
[    0.000000] Hardware name: Rockchip linux PX30 evb ddr3 board (DT)
[    0.000000] pstate: 80000085 (Nzcv daIf -PAN -UAO -TCO BTYPE=--)
[    0.000000] pc : px30_pmu_clk_init+0xb8/0x118
[    0.000000] lr : px30_pmu_clk_init+0x80/0x118
[    0.000000] sp : ffffffc011593eb0
[    0.000000] x29: ffffffc011593ec0 x28: 0000000001230018 
[    0.000000] x27: 0000000000000001 x26: ffffff807fbdd7d8 
[    0.000000] x25: ffffff8001c05400 x24: dead000000000100 
[    0.000000] x23: ffffffc0118c1000 x22: ffffffc011086dd0 
[    0.000000] x21: ffffff807fbdd7d8 x20: ffffffc010c39c28 
[    0.000000] x19: ffffff8001d8c500 x18: 0000000000000000 
[    0.000000] x17: 0000000035c5f6ec x16: 0000000000000014 
[    0.000000] x15: 0000000000000010 x14: 00000000ff140000 
[    0.000000] x13: ffffff8001d8c690 x12: 0000000000000038 
[    0.000000] x11: 0000000000000004 x10: 0101010101010101 
[    0.000000] x9 : ffffffc01087dbd0 x8 : 0000000000000005 
[    0.000000] x7 : 0000000000000001 x6 : 00000000171f13e7 
[    0.000000] x5 : 67131f1700000000 x4 : 8000000000000000 
[    0.000000] x3 : 0000000000000480 x2 : 0000000000000001 
[    0.000000] x1 : 0000000000000000 x0 : ffffff8001d8c500 
[    0.000000] Call trace:
[    0.000000]  px30_pmu_clk_init+0xb8/0x118
[    0.000000]  of_clk_init+0x1dc/0x230
[    0.000000]  time_init+0x1c/0x54
[    0.000000]  start_kernel+0x468/0x5c4
...

Since I saw your answer on #2 I think I have to start a bug report on Redmine, right?
I already asked for user registration at https://redmine.rock-chips.com/
Hope this is the right place...

[JeffyCN]

sorry, i mostly working on userspace.

rockchip redmine is for bussiness customers only, need to contact rockchip customer servise.

there was a plan to support px30 in upstream kernel, so maybe you can ask it in the irc channel
http://webchat.freenode.net/?channels=linux-rockchip