About mpc85xx flash memory allocation

Mitsutaka Amano mitsutaka.amano at gmail.com
Mon Jan 24 12:15:56 EST 2011

Hi all,

I'm testing the ppc platform is based on mpc85xx. 256MB Flash memory
has been installed. Then I found this entries.

0xc9100000-0xd9101000 268439552 of_flash_probe+0x290/0x814 ioremap

physmap_of allocated 268MB over to the vmalloc. vmalloc space is tight.

Why does we need mpc platforms to flash memory allocation? I know
other architectures don't allocate to the vmalloc.
The design of the hardware? or Is there the way to use the flash
memory without vmalloc?


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