[U-Boot] [PATCH 0/2] CFI: increase performance

Jens Gehrlein sew_s at tqs.de
Tue Dec 16 17:46:54 CET 2008


Jean-Christophe PLAGNIOL-VILLARD schrieb:
> On 17:25 Tue 16 Dec     , Jens Gehrlein wrote:
>> Hi list,
>>
>> The following patches should increase the performance of the CFI driver,
>> particularly with regard to single word programming mode.
>>
>> I tested it on TQM5200S with NOR-Flash Samsung K8P2815UQB, which has no
>> write buffer. At least no write buffer, that could be programmed using
>> standard commands.
>>
>> Performance increase on this TQM is about factor 2.6 (37 KiB/s -> 95 KiB/s).
>> On the same module with Spansion S29GL128N (with write buffer) it is about
>> factor 1.2 (455 KiB/s -> 585 KiB/s).
>>
>> TQM5200 is a bottom boot module with 2x16 Bit Flash connection. Could someone
>> test the patches on other HW, particularly top boot, other CPU, other flash
>> width, please?
> Could you try it against the qemu SVN HEAD

??? Sorry, what is qemu SVN HEAD ???

P.S.: I still can't reply to your e-mail address...

Kind regards,
Jens


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