[OpenWrt-Devel] Lantiq 3.10 (BB) was lantiq v3.18

[Daniel Gimpelevich]

On Thu, 26 Feb 2015 16:02:23 +0100, Joerg Jungermann wrote:
> Hi,
> 
> I have here multiple TD-W8970 with Annex A and Annex B.
> 
>>                 m25p80 at 0 {
>>                         #address-cells = <1>;
>>                         #size-cells = <1>;
>>                         compatible = "s25fl129p0";
>>                         reg = <0 0>;
>>                         linux,modalias = "m25p80", "mx25l3205d";
>>                         spi-max-frequency = <1000000>;
> 
> I increased spi-max-frequency = <50000000>.
> According to the datasheets I found that is maximum frequency.
> 
> With my 3 models (2x A, 1x B) these settings work with BB (kernel 3.10) 
well.
> I have not yet tested 3.18.
> I benchmarked boot up times from spi-flash with my build.
> I could lower bootup times (from uboot to init-completed) from 2m01s to 
1m18s.
> 
> I suggest backporting this increase of the spi freq to BB.
> 
> best regards

I will be very interested to see you try 3.18 and report back, because 
3.14 worked fine for me where 3.18 does not.
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