ucc_geth DPRAM alloc error, 2.6.22-rc3

[Li Yang-r58472]

> -----Original Message-----
> From: Joakim Tjernlund [mailto:joakim.tjernlund at transmode.se]
> Sent: Wednesday, June 13, 2007 10:22 PM
> To: 'linuxppc-dev Development'; Li Yang-r58472
> Subject: ucc_geth DPRAM alloc error, 2.6.22-rc3
> 
> Trying to bring up a third ethernet i/f(ifconfig eth2 up) on
> a Freescale 832x CPU gives me this:
>  ifconfig eth2 up
>  ucc_geth_startup: Can not allocate DPRAM memory for p_thread_data_tx.
>  eth2: Cannot configure net device, aborting.
>  SIOCSIFFLAGS: Cannot allocate memory
> 
> This worked in 2.6.20
Hi Joakim,

Thanks for the bug report.  The cause of this problem is that ucc_geth
is set to work in 1000Mbps mode.  However, 8323 only supports 100Mbps.
1000Mbps mode consumes much more MURAM for virtual FIFO.

I will investigate this problem further, and see if a patch is needed.

- Leo