[MPC8272ADS]Problem adding flash partitions inside the device tree
Jean-Michel Hautbois
jhautbois at gmail.com
Fri Feb 13 01:26:58 EST 2009
2009/2/12 Pieter <phenning at vastech.co.za>
> Jean-Michel Hautbois wrote:
> > 2009/2/12 David Gibson <david at gibson.dropbear.id.au
> > <mailto:david at gibson.dropbear.id.au>>
> >
> > On Thu, Feb 12, 2009 at 12:10:58PM +0100, Jean-Michel Hautbois wrote:
> > > 2009/2/12 Pieter <phenning at vastech.co.za
> > <mailto:phenning at vastech.co.za>>
> > >
> > > > Jean-Michel Hautbois wrote:
> > > > > Warning (reg_format): "reg" property in
> > > > > /localbus at f0010100/flash at 0,0/partition at ff800000 has invalid
> > length (8
> > > > > JM
> > > > You are missing some definitions, The #address-cells and
> > #size-cells = <1>;
> > > > tis is a snippet of teh dts i defined for my board.
> > > >
> > > > flash at 0,0 {
> > > > #address-cells = <1>;
> > > > #size-cells = <1>;
> > > > compatible = "cfi-flash";
> > > > reg = <0x0 0x0 0x08000000>;
> > > > bank-width = <4>;
> > > > device-width = <1>;
> > > >
> > > > /* set flash partition to correspond tu mtd parts in
> > > > u-boot*/
> > > > /* 0xf8000000 */
> > > > partition at 0x0 {
> > > > label = "factory-image";
> > > > reg = <0x00000000 0x01000000>;
> > > > };
> > > > /* 0xf9000000 */
> > > > partition at 0x01000000 {
> > > > label = "app-image-1";
> > > > reg = <0x01000000 0x01000000>;
> > > > };
> > > > cheers pieter
> > > >
> > >
> > > Hi do have these definitions, at a higher level:
> >
> > The address-cells and size-cells definitions are not inherited. They
> > cover only the immediate children of the node where they appear.
> > Otherwise the default values apply (address-cells == 2, size-cells ==
> > 1), which are not right for your case.
> >
> > --
> > David Gibson | I'll have my music baroque, and
> > my code
> > david AT gibson.dropbear.id.au <http://gibson.dropbear.id.au> |
> > minimalist, thank you. NOT _the_ _other_
> > | _way_ _around_!
> > http://www.ozlabs.org/~dgibson <http://www.ozlabs.org/%7Edgibson> <
> http://www.ozlabs.org/%7Edgibson>
> >
> > OK, so, after having tested, I can't see any changes when booting.
> > I do not have more mtd in /proc/mtd.
> >
> > JM
> have you defined the following in your kernel config
>
> CONFIG_MTD_PHYSMAP_OF=y
> CONFIG_MTD_PARTITIONS=y
> CONFIG_MTD_OF_PARTS=y
>
> cheers pieter
>
I didn't have CONFIG_MTD_OF_PARTS=y.
Know, I have this output:
Found: Intel I28F016S3
fe000000.flash: Found 4 x8 devices at 0x0 in 32-bit bank
fe000000.flash: Found an alias at 0x800000 for the chip at 0x0
fe000000.flash: Found an alias at 0x1000000 for the chip at 0x0
fe000000.flash: Found an alias at 0x1800000 for the chip at 0x0
erase region 0: offset=0x0,size=0x40000,blocks=32
RedBoot partition parsing not available
Creating 3 MTD partitions on "fe000000.flash":
0x0000ff800000-0x0000ffc00000 : "kernel"
mtd: partition "kernel" is out of reach -- disabled
mtd: Giving out device 0 to kernel
0x0000ffc00000-0x0000fff00000 : "user"
mtd: partition "sofrel" is out of reach -- disabled
mtd: Giving out device 1 to user
0x0000fff00000-0x000100000000 : "u-boot"
mtd: partition "u-boot" is out of reach -- disabled
mtd: Giving out device 2 to u-boot
I think that the problem is in the reg part, but I can't understand why.
Isn't it the RAM mpping of my MTD that is the first address ?
Thanks agains,
Regards,
JM
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