MTD partitions

Tobias Arp
2004-04-16T07:33:35Z

Hi,

on my old kernel (2.4.21 and the arm linux patch rmk2) it was possible to configure the
remapping of the flash in the xconfig/menuconfig files. I have created the mtd partitions in
physmap.c. So when i have made:

cat /proc/mtd

i got these outputs

dev: size erasesize name
mtd0: 00400000 00010000 ""physically mapped flash"
mtd1: 00060000 00010000 ""USER fs"

My flash has a size of 4 MBytes and typically 64kbytes sector size. It started physically at
offset 0x10000000 and is connected via a 16 bit bus. These were also the configuration
paramter which i added to my config files. This must be mtd0. The mtd1 device is the partition
which i have configured in physmap.c.

After applieing the mtd snapshot(mtd-snapshot-20040407.tar.bz2) i have used
physmap_configure with the same data:

physmap_configure(0x10000000,0x00400000,2,NULL);

0x10000000 = physical flash base
0x00400000 = Flash size
2 = 16 Bit Buswidth

Then i have used

physmap_set_partitions(at91_mtd_parts,1);

to add my USER fs

static struct mtd_partition at91_mtd_parts[] __initdata = {
{
.name = "USER fs",
.offset = 0x00380000,
.size = 0x00060000,
}
};

Now i get following outputs when i make cat proc/mtd

dev: size erasesize name
mtd0: 00060000 00010000 ""USER fs"

where is the "old mtd0" device with the whole flashsize ?

And how can i remove these messages from the startup of the kernel:

>cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Is there any patch for this problem ? -

>kmod: failed to exec /sbin/modprobe -s -k cmdlinepart, errno = 2
>cmdlinepart partition parsing not available
>kmod: failed to exec /sbin/modprobe -s -k RedBoot, errno = 2
>RedBoot partition parsing not available
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- Is there any reason for these messages ? -

Regards
Tobias Arp

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