On Thu, Jun 12, 2014 at 10:32 AM, jonsm...@gmail.com <jonsm...@gmail.com> wrote:
> On Thu, Jun 12, 2014 at 10:27 AM, Chen-Yu Tsai <w...@csie.org> wrote:
>> On Thu, Jun 12, 2014 at 10:26 PM, jonsm...@gmail.com <jonsm...@gmail.com> 
>> wrote:
>>> On Thu, Jun 12, 2014 at 10:20 AM, Chen-Yu Tsai <w...@csie.org> wrote:
>>>> On Thu, Jun 12, 2014 at 10:18 PM, jonsm...@gmail.com <jonsm...@gmail.com> 
>>>> wrote:
>>>>> Any ideas why the second CPU isn't booting?
>>>>>
>>>>> root@linaro-developer:/etc# dmesg | grep -i CPU
>>>>> [    0.000000] Booting Linux on physical CPU 0x0
>>>>> [    0.000000] Initializing cgroup subsys cpuset
>>>>> [    0.000000] Initializing cgroup subsys cpu
>>>>> [    0.000000] Initializing cgroup subsys cpuacct
>>>>> [    0.000000] CPU: ARMv7 Processor [410fc074] revision 4 (ARMv7), 
>>>>> cr=10c5387d
>>>>> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing
>>>>> instruction cache
>>>>> [    0.000000] PERCPU: Embedded 9 pages/cpu @ee7cc000 s12736 r8192 d15936 
>>>>> u36864
>>>>> [    0.000000] pcpu-alloc: s12736 r8192 d15936 u36864 alloc=9*4096
>>>>> [    0.000000] pcpu-alloc: [0] 0 [0] 1
>>>>> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
>>>>> [    0.002235] CPU: Testing write buffer coherency: ok
>>>>> [    0.031818] /cpus/cpu@0 missing clock-frequency property
>>>>> [    0.031846] /cpus/cpu@1 missing clock-frequency property
>>>>> [    0.031858] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>>>>> [    0.038881] CPU1: failed to boot: -38
>>>>> [    0.038926] Brought up 1 CPUs
>>>>> [    0.038941] CPU: All CPU(s) started in SVC mode.
>>>>> [    1.631337] ThumbEE CPU extension supported.
>>>>> [   15.298527] CPU1: failed to boot: -38
>>>>> root@linaro-developer:/etc#
>>>>
>>>> A20 SMP is enabled using PSCI. You'll need a u-boot branch with PSCI 
>>>> support.
>>>>
>>>> Hans' sunxi-devel does:
>>>> https://github.com/jwrdegoede/u-boot-sunxi/tree/sunxi-next
>>>
>>> For uboot I am on:
>>> https://github.com/jwrdegoede/u-boot-sunxi.git
>>> Branch sunxi
>>
>> You need branch sunxi-next from Hans' repo.
>>
>> Hopefully PSCI support will be merged upstream soon.
>
> I see that now. PSCI is no sunxi-next and his support for making
> Cubietruck Broadcom wifi work on on sunxi-devel.
>
> I guess I can live with one CPU for now since I need the wifi support more.

I have it working now. I thought I also needed the next branch of the
kernel, but that was not the case. Switching uboot is all that is
needed.

root@linaro-developer:~# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 4 (v7l)
Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls
vfpv4 idiva idivt vfpd32 lpae
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 thumbee neon vfpv3 tls
vfpv4 idiva idivt vfpd32 lpae
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xc07
CPU revision : 4

Hardware : Allwinner sun7i (A20) Family
Revision : 0000
Serial : 0000000000000000
root@linaro-developer:~#





>
>>
>>> Kernel is:
>>> https://github.com/jwrdegoede/linux-sunxi.git
>>> Branch sunxi-devel
>>>
>>> Maybe I don't have PSCI turned on somewhere?
>
>
>
> --
> Jon Smirl
> jonsm...@gmail.com



-- 
Jon Smirl
jonsm...@gmail.com

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