Hi Stefan, >> Right. Most likely you just need to tune the chip select timing registers And of course the size of the CS. What mean by size of CS? Which file I should check for timing register for S29GL512P? >> BTW: You might also need to configure a bigger TLB entry for the FLASH now that you use a bigger FLASH chip. Does uboot support one single TLB entry for 64MB size. At pesent I have configured 4 TLB entries, each 16MB.
On Fri, Apr 9, 2010 at 7:05 PM, Stefan Roese <s...@denx.de> wrote: > Hi Prakash, > > On Friday 09 April 2010 14:11:39 prakash bedge wrote: > > >> What CPU are you using, and what chip-select is the flash using? > > > > I am using PPC440x5 Cpu core. How to check the chip-select flash is > using? > > This is a custom PPC4xx version, correct? Which external bus controller is > used here? The EBC from IBM as on the AMCC 4xx versions? You need to check > your SoC documentation for this. > > > Earlier I have run the same code for M29W128GH and it works fine. But > with > > S29GL512 it is not working. > > Now the difference is only in size and write/read timings. So I believe > it > > should work in smooth manner. > > Right. Most likely you just need to tune the chip select timing registers. > And > of course the size of the CS. No idea how this is done for your external > bus > controller though. > > BTW: You might also need to configure a bigger TLB entry for the FLASH now > that you use a bigger FLASH chip. > > > kilauea.h file is present in the U-boot. > > So does this board supports S29GL512P Nor flash chip? > > Yes. As most AMCC eval boards do. > > Cheers, > 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: off...@denx.de >
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