Trouble with newer kernels on Gumstix Overo boards

Tony Lindgren tony at
Tue Jun 21 03:22:22 EDT 2011

* Daniel Mack <zonque at> [110617 18:06]:
> On Fri, Jun 17, 2011 at 4:03 PM, Gadiyar, Anand <gadiyar at> wrote:
> >> console=ttyS2,115200 root=/dev/mmcblk0p2 rw rootfstype=ext3 rootwait
> >
> > Here is your problem. We now use the OMAP-serial driver for the UARTs.
> Which breaks backward-compatibility with bootloaders set up for older
> kernels. Now I have to deploy kernels with CONFIG_CMDLINE_FORCE=y. Was
> that really necessary?

In most cases you can just setenv cmdline then saveenv in u-boot.

Who knows, maybe at some point we can make 8250.c behave with runtime PM
and Linux generic DMA API, but that might take a while before we get there :)



More information about the linux-arm-kernel mailing list