Re: [microblaze-uclinux] uCLinux cannot allocate EMAClite interrupt

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi,

Jean-Yves Ouellet wrote:

> I can compile and boot uCLinux (without networking support) on 
> MicroBlaze without Flash and EMAClite. However, if I add networking 
> support to uCLinux and EMAClite to MicroBlaze, I get the following error:

[snip]

> Microblaze UARTlite serial driver version 1.00
> ttyS0 at 0x40600000 (irq = 2) is a Microblaze UARTlite

[snip]

> eth0: using fifo mode.
> eth0: No PHY detected.  Assuming a PHY at address 0.
> eth0: Xilinx EMACLite #0 at 0x40E00000 mapped to 0x40E00000, irq=2

[snip]

eth0: Could not allocate interrupt 2.

> It looks like interrupt 2 cannot be allocated to EMAClite because it is 
> already allocated to UARTlite. But according to auto-config.in (see the 
> attached file), interrupt 3 (instead of interrupt 2) should be allocated 
> to UARTlite.

After you copied the auto-config.in file across, you must do

$ yes "" | make oldconfig
$ make dep all

The petalinux-copy-autoconfig script does this as part of its operation 
- if you aren't using it you need to do it manually.

In reality if you are changing the hardware like adding a new 
peripheral, it's probably a good idea to do a "make linux-2.4.x_clean" 
as well, to force a complete rebuild of the kernel.

This should get things consistent again.

Regards,

John

___________________________
microblaze-uclinux mailing list
microblaze-uclinux@xxxxxxxxxxxxxx
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/