George,
The memory controller settings (CS2 on AEMIF) for the NOR flash are not
optimal. You will need to tweak it under u-boot to get it working optimal.
Refer to my post last month:
http://www.mail-archive.com/[email protected]/msg02321.html
If you want a quick test and prevent yourself from bricking the board, you can
change the settings at the u-boot prompt before booting to the Linux kernel.
1) power up
2) interrupt u-boot
3) enter the following at the prompt to change to a more optimal setting:
mw.l 0x01e00010 0x0030650d 1
4) continue booting to the kernel
Regards,
Andy
----- Original Message ----
From: "Patras, George" <[EMAIL PROTECTED]>
To: [email protected]
Sent: Monday, May 14, 2007 12:18:59 PM
Subject: NOR flash erase/write time
Hello,
I'm using NOR flash partitions for kernel and ramdisk fileystem.
I'm finding very slow write times when updating these partitions.
Block size (erase size) is 64k and it takes 1.02 sec to erase and then
0.9 sec to write each block, so to write 1MB takes around 30sec.
Is this normal, does anybody have any experience to the contrary ?
Thanks,
George Patras
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