On Friday 06 March 2009, Richard Retanubun wrote:
My baseline is 2009.03-rc1. If there are STMicro/Numonyx guys on this mailing list, can you help provide a more 'generic' way of detection? this way the exception list does not have to grow a lot.
Did you take a look at the Linux driver to see how this is handled there? Maybe they have a more "generic" solution...
Hi Stefan,
Thanks for the comments. I took a quick look around /drivers/mtd, but can't find a similar geometry reversal.
Unfortunately, I found this in:
/driver/mtd/chips/cfi_cmdset_0001.c [snip] { CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct, NULL }, { CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb, NULL }, [/snip]
By no means am I a CFI expert, but my impression is, if there has to be a part number specific fixup function for any reason, then it is a good indication that there are just some part specific peculiarity.
Right.
What utilities exist in Linux-world to do the equivalent of "flinfo" in u-boot, just so I can see if Linux has a more generic way.
At this level you really need to "read" the code and/or use the embedded debug output (if available) or add some new code to see what's going on.
And just in case it matters, our board with these flash is MMU-less, so if there is a different tool for uCLinux that will help too :)
I don't think that uCLinux has different "tools" here.
Best regards, Stefan
===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@denx.de =====================================================================