[U-Boot] total u-boot neophyte tasked with resolving sd boot performance issue

[U-Boot] total u-boot neophyte tasked with resolving sd boot performance issue

[eric van tassell]

All,

Can anybody point me to resources/techniques for finding and resolving why
u-boot seems to take a horrendously long time to boot from sd .vs. nand?
Thanks in advance.

-- 
- evt
(Eric van Tassell)
twitter: evt_texelsoft
linked-in: linkedin.com/in/evttxl

[U-Boot] total u-boot neophyte tasked with resolving sd boot performance issue

[Wolfgang Denk]

Dear eric van tassell,

In message <AANLkTinz4cUDW4_2o2K3xDCVTi5BLFvPtwmEzujwKZSn@mail.gmail.com> you wrote:
>
> Can anybody point me to resources/techniques for finding and resolving why
> u-boot seems to take a horrendously long time to boot from sd .vs. nand?

It would help if you mentioned which architecture and board and U-Boot
version you are talking about...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A consultant is a person who borrows your watch, tells you what  time
it is, pockets the watch, and sends you a bill for it.

[U-Boot] total u-boot neophyte tasked with resolving sd boot performance issue

[Wolfgang Denk]

Dear eric van tassell,

please always keep the mailing list on Cc.

Also, please do not top post / full quote, this is considered really
bad manners. See http://www.netmeister.org/news/learn2quote.html

In message <AANLkTikEz2UR-VbqeFgZ-ZuTCAu+nOLCbG92DERdNSdp@mail.gmail.com> you wrote:
> 
> it's an imx35 based custom board. Although I've done a lot of kernel work
> I'm new to u-boot and was more looking for general approaches than specific
> fixes(although that would be nice)

Current ARM support does not enable caches. You might want to look
into Heiko Schocher's recent patches...

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A day without sunshine is like night.