You can specify the type of fs, either yaffs or yaffs2 or you can enable the YAFFS_AUTO_YAFFS2

#ifdef CONFIG_YAFFS_AUTO_YAFFS2

    if (yaffsVersion == 1 &&
        mtd->oobblock >= 2048) {
        T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n"));
        yaffsVersion = 2;
    }   
   
    /* Added NCB 26/5/2006 for completeness */
    if (yaffsVersion == 2 &&
        mtd->oobblock == 512) {
        T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n"));
        yaffsVersion = 1;
    }   

#endif

On 9/6/06, goog long <cecolong@yahoo.com> wrote:
Sorry for asking a silly question. I am totally new to yaffs. What change do I need to be able to use yaffs2 in yaffs1 compatibility mode? It seems like this is not a config option change. I searched back past messages and could not find any that mentioned how to do it.

Thanks,
Ceco


Wookey <wookey@aleph1.co.uk> wrote:
On 06-09-05 13:53 -0700, goog long wrote:
>
> Can you please provide more info on the NAND flash you're using? I
> suspect you've got 512b page size flash chip...
>
>
> It is Samsung NAND Flash component (K9K1216Q0C-D). This memory component
> has 512Mb/64MB of capacity that is architected as 32Mx16b.

yep - that's a 512 byte (528 byte) chip. Nevertheless you should be
able to use yaffs2 on it (in yaffs1 compatibility mode).

Wookey
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