Re: SpacemiT k1: Linux crashes setting up smp with mainline U-Boot

[Michael Opdenacker <michael.opdenacker@rootcommit.com>]

Hi Junhui

Thanks a lot for having a look at this issue!

On 12/12/25 02:50, Junhui Liu wrote:
> Hi Michael,
>
> On 12/12/25 4:34 AM, Michael Opdenacker wrote:
> [...]
>> [   0.000000] SBI specification v3.0 detected
>> [    0.000000] SBI implementation ID=0x1 Version=0x10007
>> [    0.000000] SBI TIME extension detected
>> [    0.000000] SBI IPI extension detected
>> [    0.000000] SBI RFENCE extension detected
>> [    0.000000] SBI DBCN extension detected
>> [    0.000000] SBI FWFT extension detected
>>
> [...]
>> syys 0.083956] smp: Bringing upsysysys: sys: 0xss
>> 1.  sys:t:: r  y00 xxs01fxdcfe121.0
>> 210c.
>>
>>   b0
>> m:3
>> j...
>
> This might actually not a "crash". Instead, it seems the boot address for
> CPUs 1-7 hasn't been set correctly, causing them to boot from the 
> BootROM.
>
> I believe this is not a U-Boot issue, but rather an OpenSBI one. 
> According
> to the log, it looks like you are using mainline OpenSBI. Could you 
> please
> confirm the OpenSBI you are using includes this fix:
>
> 126c9d34 ("platform: generic: spacemit: add missing objects.mk")

Yes, I made sure I'm building the latest commit on the "master" branch 
as of today (51fe6a8bc958166ff79805cf69bafe5e297776f4), and that it 
contains the fix you mentioned.
However, it doesn't fix my issue yet.

Here's the OpenSBI output, which unfortunately doesn't confirm the commit:

OpenSBI v1.7
    ____                    _____ ____ _____
   / __ \                  / ____|  _ \_   _|
  | |  | |_ __   ___ _ __ | (___ | |_) || |
  | |  | | '_ \ / _ \ '_ \ \___ \|  _ < | |
  | |__| | |_) |  __/ | | |____) | |_) || |_
   \____/| .__/ \___|_| |_|_____/|____/_____|
         | |
         |_|

Platform Name               : Banana Pi BPI-F3
Platform Features           : medeleg
Platform HART Count         : 8
Platform IPI Device         : aclint-mswi
Platform Timer Device       : aclint-mtimer @ 24000000Hz
Platform Console Device     : uart8250
Platform HSM Device         : ---
Platform PMU Device         : ---
Platform Reboot Device      : ---
Platform Shutdown Device    : ---
Platform Suspend Device     : ---
Platform CPPC Device        : ---
Firmware Base               : 0x0
Firmware Size               : 403 KB
Firmware RW Offset          : 0x40000
Firmware RW Size            : 147 KB
Firmware Heap Offset        : 0x54000
Firmware Heap Size          : 67 KB (total), 4 KB (reserved), 12 KB 
(used), 50 KB (free)
Firmware Scratch Size       : 4096 B (total), 1400 B (used), 2696 B (free)
Runtime SBI Version         : 3.0
Standard SBI Extensions     : 
time,rfnc,ipi,base,hsm,pmu,dbcn,fwft,legacy,dbtr,sse
Experimental SBI Extensions : none

Domain0 Name                : root
Domain0 Boot HART           : 0
Domain0 HARTs               : 0*,1*,2*,3*,4*,5*,6*,7*
Domain0 Region00            : 0x00000000d4017000-0x00000000d4017fff M: 
(I,R,W) S/U: (R,W)
Domain0 Region01            : 0x00000000e4000000-0x00000000e400ffff M: 
(I,R,W) S/U: ()
Domain0 Region02            : 0x0000000000000000-0x000000000003ffff M: 
(R,X) S/U: ()
Domain0 Region03            : 0x0000000000040000-0x000000000007ffff M: 
(R,W) S/U: ()
Domain0 Region04            : 0x00000000e0000000-0x00000000e3ffffff M: 
(I,R,W) S/U: (R,W)
Domain0 Region05            : 0x0000000000000000-0xffffffffffffffff M: 
() S/U: (R,W,X)
Domain0 Next Address        : 0x0000000000200000
Domain0 Next Arg1           : 0x0000000000289058
Domain0 Next Mode           : S-mode
Domain0 SysReset            : yes
Domain0 SysSuspend          : yes

Boot HART ID                : 0
Boot HART Domain            : root
Boot HART Priv Version      : v1.12
Boot HART Base ISA          : rv64imafdcbvx
Boot HART ISA Extensions    : 
sscofpmf,sstc,zicntr,zihpm,zicboz,zicbom,svpbmt,sdtrig
Boot HART PMP Count         : 32
Boot HART PMP Granularity   : 12 bits
Boot HART PMP Address Bits  : 38
Boot HART MHPM Info         : 16 (0x0007fff8)
Boot HART Debug Triggers    : 8 triggers
Boot HART MIDELEG           : 0x0000000000002222

Boot HART MEDELEG           : 0x000000000000b109

Anything else I can try?
Thanks again
Michael.

-- 
Michael Opdenacker
Root Commit
Yocto Project and OpenEmbedded Training course - Learn by doing:
https://rootcommit.com/training/yocto/


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