OMAP5432 at home !

Discussion in 'Pyra OS (Debian GNU/Linux)' started by Linux-SWAT, Apr 27, 2015.

  1. Linux-SWAT

    Linux-SWAT Hardcore Member

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    root@slackware:~# cat /proc/cpuinfo
    processor : 0
    model name : ARMv7 Processor rev 2 (v7l)
    BogoMIPS : 12.30
    Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt
    CPU implementer : 0x41
    CPU architecture: 7
    CPU variant : 0x2
    CPU part : 0xc0f
    CPU revision : 2

    processor : 1
    model name : ARMv7 Processor rev 2 (v7l)
    BogoMIPS : 12.30
    Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt
    CPU implementer : 0x41
    CPU architecture: 7
    CPU variant : 0x2
    CPU part : 0xc0f
    CPU revision : 2

    Hardware : OMAP5 Panda board
    Revision : 0000
    Serial : 0000000000000000


    Code:
    root@slackware:~# lsmod
    Module                  Size  Used by
    arc4                    1707  2 
    wl12xx                 49575  0 
    wlcore                163092  1 wl12xx
    mac80211              445166  2 wl12xx,wlcore
    xhci_hcd               81582  0 
    cfg80211              421238  2 mac80211,wlcore
    snd_soc_spdif_tx        1424  0 
    dwc3                   35256  0 
    snd_soc_omap_abe_twl6040    13359  0 
    snd_soc_twl6040        21417  1 snd_soc_omap_abe_twl6040
    omap_usb3               4028  1 
    wlcore_sdio             3920  0 
    palmas_usb              4096  0 
    tmp102                  3301  0 
    omap_usb2               3526  2 palmas_usb
    dwc3_omap               4020  2 dwc3,palmas_usb
    snd_soc_omap_mcpdm      5010  0 
    at24                    5174  0 
    snd_soc_omap_abe       32086  2 snd_soc_omap_abe_twl6040,snd_soc_omap_mcpdm
    snd_soc_abe_hal        41181  2 snd_soc_omap_abe,snd_soc_omap_mcpdm
    snd_soc_omap_dmic       5520  0 
    snd_soc_omap_mcasp      5082  0 
    snd_soc_omap_mcbsp     18471  1 snd_soc_omap_abe_twl6040
    
    
    I bought this model in full edition :

    https://www.isee.biz/products/igep-processor-boards/igepv5-omap5432

    It ships with a 4G micro-SD with an old, slow and boring Ubuntu on it.

    I modified http://projects.goldelico.com/p/gta04-makesd/ from Nikolaus Schaller's website to build Debian/Pyra and Slackware images using the IGEPv5 hardware.

    Have things yet to be fixed, e.g. I see only 1G RAM instead of 4G.
     
    Last edited by a moderator: Apr 28, 2015
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  2. kaprikawn

    kaprikawn Very Active Member

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    Aren't you worried that the Pyra will be released in Two Months™ and render your purchase somewhat obselete?
     
  3. Linux-SWAT

    Linux-SWAT Hardcore Member

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    It's the same CPU and it kicks asses, why would it be obsolete ?
     
  4. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    Odd there is a 1GB light version of that board is it possible you got that version instead?   Or maybe it has something to do with the device tree setup... not sure.
     
  5. Exophase

    Exophase Nothing good will ever come of Exophase.

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    How does it even end up with 12.3 bogoMIPS? I wasn't aware the processor could even run that slow.
     
  6. Linux-SWAT

    Linux-SWAT Hardcore Member

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    I have the Wi-Fi + the good reference on the board.

    There's no boot parameters file, maybe the amount of usable RAM is fixed in the default.kernel.

    No idea, I compiled a pandora kernel in 47mn with two cores instead of the 3:30 on the OP.
     
    Last edited by a moderator: Apr 27, 2015
  7. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    Wally I think may have the same 4GB version of that board, maybe you can get with him. the official Ti EVM we have the 4.0 Kernel, but I think Wally is stuck with an older 3.X version of the kernel. 
     
  8. EvilDragon

    EvilDragon Administrator Staff Member

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    Indeed, a very weird value :eek:

    Are the bogoMIPS being calculated with the current cpu speed?

    So could it be it clocks to 20MHz when idling?
     
  9. WizardStan

    WizardStan Mega GP Mania

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    bogoMIPS are calculated as part of the boot process. If it boots at just a few Mhz and the kernel sets the speed later then it would give very unusual results like this, I would think.
     
  10. Linux-SWAT

    Linux-SWAT Hardcore Member

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    I don't know where to check/set the CPU frequency.

    Looked around in /sys and /proc, but found nothing.

    Here's the IGEPv5 latest kernel :

    root@slackware:~# uname -r
    3.8.13-0-omap5
     
  11. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    well there is the cpufreq-info command...

    also to note, running set @ 1.5Ghz, Kernel 4.0RC5:

    Code:
    trashy@pyra:~$ cat /proc/cpuinfo
    processor    : 0
    model name    : ARMv7 Processor rev 2 (v7l)
    BogoMIPS    : 18.43
    Features    : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
    CPU implementer    : 0x41
    CPU architecture: 7
    CPU variant    : 0x2
    CPU part    : 0xc0f
    CPU revision    : 2
    
    processor    : 1
    model name    : ARMv7 Processor rev 2 (v7l)
    BogoMIPS    : 18.43
    Features    : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
    CPU implementer    : 0x41
    CPU architecture: 7
    CPU variant    : 0x2
    CPU part    : 0xc0f
    CPU revision    : 2
    
    Hardware    : Generic OMAP5 (Flattened Device Tree)
    Revision    : 0000
    Serial        : 0000000000000000
     
    Last edited by a moderator: Apr 27, 2015
  12. comradekingu

    comradekingu Glowing ember

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    Nice that there is no serial, will the same be true for the pyra-omaps?
     
  13. _wb_

    _wb_ Microbe Staff Member

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    Looks like the bogusness of BogoMIPS is strong here...
     
  14. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    Also to note about the bogoMIPS issue,

    Is there a difference between bogoMIPS and bogomips?

    differences between the /proc/cpuinfo

    BogoMIPS    : 18.43 on the OMAP5

    vs

    bogomips    : 3191.64 on my x86_64 laptop.

    is it just a decimal place difference?

    edit: on searching for this information I found this quote: "BogoMIPS used to be the infamous, prestigious benchmark for Linux machines over a decade. Unfortunately - or fortunately - depending of point of view - the BogoMIPS number of the favorite machine BogoMIPS have little to nothing to do with actual processor performance."

    so it may be a useless number.
     
    Last edited by a moderator: Apr 27, 2015
  15. WizardStan

    WizardStan Mega GP Mania

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    I assume it's just a difference of output convention. My BeagleBoard says

    BogoMIPS : 497.82

    Check your Pandora. Mine is at home. :(
     
  16. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    Hmm my 1Ghz @1100Mhz says..


    BogoMIPS    : 1095.51


    According to this metric we should stick with the DM3730  :)
     
    Last edited by a moderator: Apr 27, 2015
  17. notaz

    notaz Certified Guru

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    I can guess the timer is not yet initialized when OMAP5 spins it's BogoMIPS loop, giving a totally bogus value.
     
  18. Linux-SWAT

    Linux-SWAT Hardcore Member

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    Also, the instruction sets are different :

    IGEPv5: swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt

    EVM : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm
     
  19. TrashyMG

    TrashyMG Sarcasm Dispenser Staff Member

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    aTc compiled the kernel with some virtualization features enabled, looks like a few others too... the EVM seems to be missing swp, not sure how critical that is.
     
    Last edited by a moderator: Apr 27, 2015
  20. Farox

    Farox Certified Guru

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    For completeness here the info on my CC Pandy :) @ 600Mhz

     

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