Hi Felix, > -----Original Message----- > From: linuxppc-dev-bounces+priyanka.jain=freescale....@lists.ozlabs.org > [mailto:linuxppc-dev- > bounces+priyanka.jain=freescale....@lists.ozlabs.org] On Behalf Of Felix > Radensky > Sent: Tuesday, April 12, 2011 10:24 AM > To: Aggrwal Poonam-B10812 > Cc: linuxppc-...@ozlabs.org; Gupta Maneesh-B18878; Kushwaha Prabhakar- > B32579 > Subject: Re: Problem with mini-PCI-E slot on P2020RDB > > Hi Poonam > > On 04/12/2011 07:05 AM, Aggrwal Poonam-B10812 wrote: > > Hello Felix > > > > Please find some comments inline. > > > > Regards > > Poonam > > > >> -----Original Message----- > >> From: Kushwaha Prabhakar-B32579 > >> Sent: Tuesday, April 12, 2011 9:26 AM > >> To: Aggrwal Poonam-B10812 > >> Subject: FW: Problem with mini-PCI-E slot on P2020RDB > >> > >> > >> > >> -----Original Message----- > >> From: Felix Radensky [mailto:fe...@embedded-sol.com] > >> Sent: Monday, April 11, 2011 7:16 PM > >> To: Kushwaha Prabhakar-B32579 > >> Cc: Fabian Bertholm; Leon Woestenberg; linuxppc-...@ozlabs.org; > >> Mahajan Vivek-B08308; Aggrwal Poonam-B10812; Gupta Maneesh-B18878 > >> Subject: Re: Problem with mini-PCI-E slot on P2020RDB > >> > >> Hi Prabhakar, > >> > >> On 04/11/2011 02:09 PM, Kushwaha Prabhakar-B32579 wrote: > >>> Hi, > >>> > >>> Yes. It wil be applicable for all revisions. > >>> > >>> Regards, > >>> Prabhakar > >>> > >> I'm sure this is applicable to all revisions, but it doesn't > >> necessarily makes things work. The problem I've reported back in 2009 > >> still exists on P2020RDB revC, even if I use the latest u-boot and > >> kernel and make device tree changes that you've suggested. > >> I've attached the boot log. > > As such there is no hardware fix related to this issue between RevC to > RevD. The solution was a software patch to resolve the issue related to > IRQ0. > > Are you sure ? Please take a look at Freescale document titled > "P1020E/P2020E RDB System Errata". > There's errata CE10, IRQ0 held low. It is fixed in Rev D. Vivek Mahajan, > who looked at the issue back in 2009, estimated that problem can be > related to missing pull-up on IRQ0. This is exactly what is fixed in Rev > D. >
We are looking into it and are in discussion with design team. We will keep you posted for the same.. --Prabhakar _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev