Re: jffs for amd Am29LV160BB

[Nicolas Pitre <nico@xxxxxxx.org>]

On Wed, 25 Apr 2001, dhammika wrote:

> something weird happened, i defined the brutus_io_desc as,
>
> static struct map_desc brutus_io_desc[] __initdata = {
>  /* virtual     physical    length      domain     r  w  c  b */
>   { 0xe8000000, 0x04000000, 0x00400000, DOMAIN_IO, 1, 1, 0, 0 }, /* flash bank 0 */

Here using 0x04000000 instead of 0x00000000 will simply access the flash
through a memory alias.

> when i boot with this image,
>
> mtd: Giving out device 0 to Raw memory
> Registered physmem device from 98304Kb to 131072Kb
> Mapped from 0xc1816000 to 0xc3816000

It looks like you enabled CONFIG_MTD_SLRAM.  Please disable that.

> SA1100 flash: probing for 3 partitions (buswidth = 4)
> SA1100: Found 2 x16 CFI devices at location 0 in 16 bit mode
> SA1100: Found 2 x16 CFI devices at location 400000 in 16 bit mode
>  Amd/Fujitsu Extended Query Table v1.0 at 0x0040
> number of CFI chips: 2
> mtd: Giving out device 1 to blob + zImage
> mtd: Giving out device 2 to ramdisk
> mtd: Giving out device 3 to root-fs
> SA1100 flash access initialized

Now you're in business.  Disabling slram will attribute expected device
numbers to your partitions.


Nicolas


To unsubscribe from this list: send the line "unsubscribe jffs-dev" in
the body of a message to majordomo@xxxxxxx.com