LS1043A-RDB Linux Hangs At PSCI

[lion3875]

BootFrom SD

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 4.9.79 (root@ubuntu) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #1 SMP PREEMPT Wed Mar 28 11:22:27 CST 2018
[ 0.000000] Boot CPU: AArch64 Processor [410fd034]
[ 0.000000] earlycon: uart8250 at MMIO 0x00000000021c0500 (options '')
[ 0.000000] bootconsole [uart8250] enabled
[ 0.000000] efi: Getting EFI parameters from FDT:
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created DMA memory pool at 0x00000008ffc00000, size 4 MiB
[ 0.000000] OF: reserved mem: initialized node qman-fqd, compatible id shared-dma-pool
[ 0.000000] Reserved memory: created DMA memory pool at 0x00000008fc000000, size 32 MiB
[ 0.000000] OF: reserved mem: initialized node qman-pfdr, compatible id shared-dma-pool
[ 0.000000] Reserved memory: created DMA memory pool at 0x00000008fe000000, size 16 MiB
[ 0.000000] OF: reserved mem: initialized node bman-fbpr, compatible id shared-dma-pool
[ 0.000000] cma: Reserved 16 MiB at 0x00000000fac00000
[ 0.000000] NUMA: No NUMA configuration found
[ 0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x00000008ffbfffff]
[ 0.000000] NUMA: Adding memblock [0x80000000 - 0xfbdfffff] on node 0
[ 0.000000] NUMA: Adding memblock [0x880000000 - 0x8fbffffff] on node 0
[ 0.000000] NUMA: Adding memblock [0x8ff000000 - 0x8ffbfffff] on node 0
[ 0.000000] NUMA: Initmem setup node 0 [mem 0x80000000-0x8ffbfffff]
[ 0.000000] NUMA: NODE_DATA [mem 0x8ffbcc340-0x8ffbcdaff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000080000000-0x00000000ffffffff]
[ 0.000000] Normal [mem 0x0000000100000000-0x00000008ffbfffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080000000-0x00000000fbdfffff]
[ 0.000000] node 0: [mem 0x0000000880000000-0x00000008fbffffff]
[ 0.000000] node 0: [mem 0x00000008ff000000-0x00000008ffbfffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x00000008ffbfffff]
[ 0.000000] psci: probing for conduit method from DT.

linux hangs in linux/drivers/firmware/psci.c, it can not get psci version from ARMV8 through SMC instruction, i am very confused with this, does anyone know how to solve this problem.

[KoWu]

Just had the same issue, PSCI is using SMCCC calls, and the kernel was overwriting the arm trusted firmwares BL31 residing inside DRAM. BL31 is responsible for handling SMC calls. So the first SMC call (psci_get_version) would jump into corrupted memory and hang.

Need to mark the memory as reserved in the linux DTS. On my setup BL31 is residing at physical RAM_END - 10MiB and it's size is max 2MiB.

[Gundam]

Hi ,

I meet a same issue too,Could you please tell me how to set "mark the memory as reserved in the Linux DTS"?I look forward to your reply.

Thanks.

[yang-]

原因只有一个就是实际的DDR大小和bootloader下给内核的大小不一致；

[yang-]

原因只有一个就是你的实际DDR大小和firmware初始化的返回给内核的大小不一样；

[simeon1]

Seemingly the same problem here. I have an ESPRESSObin board v7 with Marvell A3720 SoC. I also use NixOS linux. When I upgraded kernel from 5.1 to 5.2, it stopped booting with this same problem - hanging on PSCI probing.

5.1.6 version works fine. 5.3.1 kernel from Arch Linux works fine as well. But all kernels starting with 5.2.11 (and also 5.3.7) do hang.

I suspect it is somehow related to kernel compilation parameters, just because Arch kernel works.

Or probably kernel size is involved: Arch kernel is just 12MB; NixOS kernel 5.1.6 is 32MB; and kernel 5.2.11 is 33MB. I suspect something in the memory is overwritten.

[wangxiaozhuang]

I had a similar problem at LS1028ardb platform，have you found the reason now?

Looking forward to your reply，Thank you

[lion3875]

I have already find out why linux hangs at PSCI, because i config DDR size to 4GB, if change to 2GB, kernel will booting correctly, but why? does anyone know the reason.

[wangxiaozhuang]

I had a similar problem at LS1028ardb platform，have you found the reason now?

Looking forward to your reply，Thank you。