I booting linux-3.15 on pcDuino V3(A20 onboard).
1,second CPU failed,I used https://github.com/jwrdegoede/u-boot-sunxi,then 
fixed it.
2,missing clock-frequency property
The following is a useful log
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000]  RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] Architected cp15 timer(s) running at 24.00MHz (phys).
[    0.000007] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 
2863311519744ns
[    0.000014] Switching to timer-based delay loop
[    0.000281] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 
178956969942ns
[    0.000402] sched_clock: 32 bits at 160MHz, resolution 6ns, wraps every 
26843545593ns
[    0.000553] Console: colour dummy device 80x30
[    0.000581] Calibrating delay loop (skipped), value calculated using timer 
frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.000593] pid_max: default: 32768 minimum: 301
[    0.000701] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000712] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
[    0.001230] CPU: Testing write buffer coherency: ok
[    0.001486] /cpus/cpu@0 missing clock-frequency property
[    0.001503] /cpus/cpu@1 missing clock-frequency property
[    0.001514] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.001541] Setting up static identity map for 0x404755e0 - 0x40475638
[    0.002624] CPU1: Booted secondary processor
[    0.002665] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.002769] Brought up 2 CPUs
[    0.002789] SMP: Total of 2 processors activated.
[    0.002795] CPU: All CPU(s) started in HYP mode.
[    0.002800] CPU: Virtualization extensions available.
[    0.003351] devtmpfs: initialized
[    0.006961] VFP support v0.3: implementor 41 architecture 2 part 30 variant 
7 rev 4
[    0.007171] pinctrl core: initialized pinctrl subsystem
[    0.007357] regulator-dummy: no parameters
[    0.011695] NET: Registered protocol family 16
[    0.011962] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.020704] vcc3v0: 3000 mV 
[    0.020865] vcc3v3: 3300 mV

also I can see /proc/cpuinfo
# cat /proc/cpuinfo 
processor       : 0
model name      : ARMv7 Processor rev 4 (v7l)
Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva 
idivt vfpd32 lpae evtstrm 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 4

processor       : 1
model name      : ARMv7 Processor rev 4 (v7l)
Features        : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva 
idivt vfpd32 lpae evtstrm 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xc07
CPU revision    : 4

Hardware        : Allwinner sun7i (A20) Family
Revision        : 0000
Serial          : 0000000000000000

is there some way to fixed it?

-- 
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.

Reply via email to