Hi, Yes. It wil be applicable for all revisions.
Regards, Prabhakar > -----Original Message----- > From: Felix Radensky [mailto:fe...@embedded-sol.com] > Sent: Monday, April 11, 2011 2:10 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, > > Assuming I have all patches in place, will this problem be resolved on > earlier board revisions (before rev D) ? > > Felix. > > On 04/11/2011 12:06 PM, Kushwaha Prabhakar-B32579 wrote: > > Hi Fabe, > > > > Yes .. P1020/P1011 RDB has same issue as of P2020RDB. > > > > It was because of some missing patches at u-boot and Linux. > > > > U-boot patch : It is already present in open source. Please use latest > > code base Linux patch : I am in process of posting in open source. > Please make mentioned changes of IDSEL. > > > > --Prabhakar > > > >> -----Original Message----- > >> From: Fabian Bertholm [mailto:fabeisag...@googlemail.com] > >> Sent: Monday, April 11, 2011 1:53 PM > >> To: Kushwaha Prabhakar-B32579 > >> Cc: Leon Woestenberg; linuxppc-...@ozlabs.org; Mahajan Vivek-B08308; > >> Felix Radensky; Aggrwal Poonam-B10812; Gupta Maneesh-B18878 > >> Subject: Re: Problem with mini-PCI-E slot on P2020RDB > >> > >> Hello Kushwaha Prabhakar, > >> > >> Our impression is that there is the same issue on the P1020/P1011 RDB. > >> Can you confirm this? > >> > >> Best Regards, > >> Fabe > >> > >> > >> 2011/4/8 Kushwaha Prabhakar-B32579<b32...@freescale.com>: > >>> > >>>> -----Original Message----- > >>>> From: Leon Woestenberg [mailto:leon.woestenb...@gmail.com] > >>>> Sent: Thursday, April 07, 2011 10:50 PM > >>>> To: linuxppc-...@ozlabs.org > >>>> Cc: Kumar Gala; Mahajan Vivek-B08308; Aggrwal Poonam-B10812; Felix > >>>> Radensky; Kushwaha Prabhakar-B32579 > >>>> Subject: Re: Problem with mini-PCI-E slot on P2020RDB > >>>> > >>>> Hello, > >>>> > >>>> On Thu, Dec 17, 2009 at 9:28 PM, Felix Radensky > >>>> <fe...@embedded-sol.com> > >>>> wrote: > >>>>> Kumar Gala wrote: > >>>>>> On Dec 17, 2009, at 2:59 AM, Mahajan Vivek-B08308 wrote: > >>>>>>>> Thanks a lot. If I understand you correctly, the only way I can > >>>>>>>> get ath9k driver to work on this board using legacy interrupts > >>>>>>>> is to wait for a hardware fix. Right ? > >>>>>>>> > >>>>>>> Correct > >>>>>> I'm confused. What's the issue with IRQ0 on the P2020RDB? Is it > >>>>>> used for another purpose? > >>>>> There's a problem with IRQ0 with respect to mini-PCI-E slot. I > >>>>> have Atheros wireless card plugged into it. ath9k wireless driver > >>>>> for this card uses legacy PCI-E interrupts, and I get "irq 16: > >>>>> nobody > >> cared" > >>>>> message when driver executes request_irq(). Vivek has come to a > >>>>> conclusion that the problem is related to incorrect IRQ0 routing > >>>>> for mini-PCI-E slot on P2020RDB. > >>>>> > >>>> I would like to understand this issue better, as I seem to be > >>>> running into something similar, and it puts my board design on hold. > >>>> > >>>> Can someone (from Freescale) explain what happens if a PCI Express > >>>> end point on the mini-PCIe slot raises a legacy interrupt, and > >>>> where this goes wrong? > >>>> > >>>> From what document or source code file can I conclude that the > >>>> PCIe legacy interrupt is shared with IRQ0? > >>>> > >>>> > >>>> I found this: > >>>> > >>>> P1020E/P2020E RDB System Errata, Last Update: 2/15/2010: > >>>> Problem:IRQ0 held low > >>>> Fix: Add 4.7K pull-up (to 3.3.V) for RTC_INT_N. > >>>> See R420 in Rev D schematic. > >>>> Add 4.7K pull-up (to 3.3.V) for MCU_INT_N. > >>>> See R423 in Rev D schematic. > >>>> > >>>> > >>> Hello Leon, > >>> > >>> Yes you are right, PCIe leagacy interrupt is shared with IRQ0. For > >> Atheros issue. > >>> Can you please try followings, Meanwhile I will try to dig into it. > >>> > >>> http://old.nabble.com/Problem-with-mini-PCI-E-slot-on-P2020RDB-td268 > >>> 02 > >>> 038.html > >>> > >>> Regarding sata_sil24, Please see my e-mail on Linux-ide for correct > >> IDSEL value. > >>> Please first try IDSEL value mentioned in email on Linux-ide. Then > >>> try > >> this URL.. > >>> --Prabhakar > >>> > >>> _______________________________________________ > >>> Linuxppc-dev mailing list > >>> Linuxppc-dev@lists.ozlabs.org > >>> https://lists.ozlabs.org/listinfo/linuxppc-dev > >>> > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
