[PATCH 3/3] ppc/uImage: Add support for RAM Disks

Wed Jan 16 12:30:34 EST 2013

* McClintock Matthew-B29882 | 2013-01-14 15:14:16 [+0000]:

>On Sun, Jan 13, 2013 at 11:14 PM, Suzuki K. Poulose <suzuki at in.ibm.com> wrote:
>> On 01/11/2013 12:41 PM, McClintock Matthew-B29882 wrote:
>>>
>>> On Fri, Jan 11, 2013 at 12:42 AM, Suzuki K. Poulose <suzuki at in.ibm.com>
>>> wrote:
>>>>
>>>> From: Suzuki K. Poulose <suzuki at in.ibm.com>
>>>>
>>>> Handle the RAM Disks in uImage format
>>>
>>>
>>> As opposed to simple ext2.gz ramdisk?
>
>OK - it's been a while but we only supported uImage for kernel image
>not ramdisk. That's what threw me off when I wrote this email I
>believe.

Who is "we"? Did you use kexec and pass ext2.gz as a ramdisk?

u-boot supports this like for ever. You start the kernel via
 bootm x y z

where y is the address of the ramdisk / initrd. passing the address the
ext2.gz files does not work.
As an alternative to this you can only pass x to bootm and the image has
the "uImage.FIT" format which can contain the kernel, device tree and a
ramdisk in one piece.

>-M

Sebastian