[U-Boot-Users] Flash write problem on CSB226

[Wolfgang Denk]

Hello,

in message <40179180.7070608 at imms.de> you wrote:
> 
> So I suspected the write_buff function in boards/csb226/flash.c (which 
> wrote the two chips sequentially as two 16-bit words) and modified it to 
> access both chips in parallel as 32 bit (the flash_erase function 
> already works this way).
> The flash write problem seems to be gone now. Did anyone else experience 
> such problems, or is just our board equipped with particularly unequal 
> or pernickety flash chips?

If the erase function was already  working  that  way  it  should  be
probably OK to use this for writes, too.

> In the attached patch, the old functions are just #ifdef'd out and could 
> be easily reactivated.

I removed the old code; if anybody should really need it it's in  the
CVS history.


Thanks for the patch, added.


> There's one more thing I'm unsure about: Which is the right place to set 
> the CPU clock?
> In boards/csb226/memsetup.S it is set to a default value. In 
> cpu/pxa/start.S it is set to the configured CFG_CPUSPEED value, but 
> memsetup is called after this.

I didn't care about the PXA yet, but "memsetup.S" should set  up  the
memory  controller; clocks should probably be set up in some cpu/pxa/
file.

Best regards,
Viele Grüße,

Wolfgang Denk

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