The Next BeagleBone Better & Faster for Less!

[Warner Losh]

On Feb 21, 2013, at 9:58 AM, Tim Kientzle wrote:

> 
> On Feb 21, 2013, at 7:17 AM, Ian Lepore wrote:
> 
>> On Thu, 2013-02-21 at 07:58 -0700, Warner Losh wrote:
>>> On Feb 21, 2013, at 7:48 AM, Ian Lepore wrote:
>>> 
>>>> On Wed, 2013-02-20 at 23:49 -0700, Warner Losh wrote:
>>>>> On Feb 20, 2013, at 11:13 PM, Brett Wynkoop wrote:
>>>>> 
>>>>>> On Wed, 20 Feb 2013 23:49:03 -0500
>>>>>> George Rosamond <george at ceetonetechnology.com> wrote:
>>>>>> 
>>>>>>> On 02/20/13 23:27, Alie Tan wrote:
>>>>>>>> Just got a news about new Beaglebone:
>>>>>>>> 
>>>>>>>> http://beagleboard.org/unzipped/
>>>>>>> 
>>>>>>> Wow.  Although personally, I could do without the HDMI.
>>>>>>> 
>>>>>>> It would be ideal there was a stock FBSD image for them to provide for
>>>>>>> purchasers... as in official on their www site as an alternative to
>>>>>>> Linux.
>>>>>>> 
>>>>>>> g
>>>>>> 
>>>>>> Greeting-
>>>>>> 
>>>>>> We need working USB support to contribute that to their site.
>>>>>> 
>>>>>> Is this new bone going to be the same as the old bone, but with video,
>>>>>> in other words will current kernels run or will the hard core kernel
>>>>>> folks have to rework things?
>>>>> 
>>>>> We'll likely have to rework thing, at least if we want to run out of flash on the card. it has a new flash chip that has micron markings on it. Sure would be nice to know what, exactly, that chip is…
> 
> I haven't found what SoC the new BeagleBone is
> using, but the AM3359 used on the original BeagleBone
> does support hardware ECC in the memory controller.
> 
> "Section 7.1.1.1 GPMC (General Purpose Memory Controller) Features
>   …
>  • Up to 16-bit ECC support for NAND flash using BCH code (t=4, 8
>     or 16) or Hamming code for 8-bit or 16-bit NAND-flash, organized
>    with page size of 512 bytes, 1K bytes, or more."
> 
> There is also an "Error Location Module" documented in Section 7.4
> of the TRM which seems to be the component that actually
> implements the ECC coding and works with the GPMC.
> 
> Definitely a chunk of work to integrate, but it doesn't appear
> to require that we implement software ECC.

Software BCH is very slow in comparison to hardware..

Warner