[U-Boot] am335x: cpsw: optimize cpsw_recv to increase network performance

Stefan Roese sr at denx.de
Thu Dec 12 14:53:40 CET 2013


On 12.12.2013 14:49, Tom Rini wrote:
>>> Check your logs?  Unless you've also got a patched tree you should see
>>> "WARNING: Caches disabled" or so, because, yeah, oops, am335x got in
>>> with caches disabled, and then I forgot about it.
>>
>> This is what I got currently (mainline):
>>
>> U-Boot 2014.01-rc1-00165-ge03c76c (Dec 12 2013 - 09:26:20)
>>
>> I2C:   ready
>> DRAM:  128 MiB
>> Enable d-cache
>> DFU USB: VID = 0x 908, PID = 0x 2d2
>> NAND:  256 MiB
>> MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
>> Net:   cpsw
>>
>> So caches seem to be enabled, right? Or is i-cache still missing?
> 
> Ug, the siemens board code enables dcache on its own.  Need to take care
> of that.  That said, it's the same one-liner the rest of the patches do,
> sans printf.  I think you may need to do more investigation.

Yes, will do (once the issue gets more pressing).

Thanks,
Stefan



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