[U-Boot-Users] Sector size with CFI driver?
Yogi
pat_vim at yahoo.com
Wed Nov 1 19:29:11 CET 2006
Yeah, you can use the field at 4F (9E). If it is 2 it is bottom boot. If it is 3 it is top boot.
See page 27, Table 4-4 CFI Mode: Primary Vendor-Specific Extended Querry Data Values
in the data sheet.
Thanks
Yogi
----- Original Message ----
From: Timur Tabi <timur at freescale.com>
To: Tolunay Orkun <listmember at orkun.us>
Cc: u-boot-users at lists.sourceforge.net; Stefan Roese <sr at denx.de>
Sent: Wednesday, November 1, 2006 9:52:44 AM
Subject: Re: [U-Boot-Users] Sector size with CFI driver?
Tolunay Orkun wrote:
> Secondly, it looks like the erase region list returned is reversed for
> this flash chip. I think, CFG_CFI_GEOMETRY_REVERSED would be more
> appropriate.
I like that one better.
> Perhaps you can identify such a reserved list from the CFI tables on the
> flash. If this can be done no macros would be needed to handle this case.
>
> Can you tell me the exact part number for your flash. I would like to
> read the data sheet and compare its CFI structures if I can.
29LV640BTTC-90G
You can find the specs here by going to http://www.macronix.com, clicking on
"Flash Memory", and then scrolling to the bottom for this entry:
MX29LV640B T/B 3V x8/x16 Boot sector 90/120 48-TSOP, 63-CSP
I'm using the 48-pin version.
--
Timur Tabi
Linux Kernel Developer @ Freescale
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