Hi Marek: > -----Original Message----- > From: Marek Vasut [mailto:marex@xxxxxxx] > Sent: Wednesday, December 04, 2013 11:45 PM > To: Zhu Richard-R65037 > Cc: Jingoo Han; 'Pratyush Anand'; 'Mohit KUMAR DCG'; 'Tim Harvey'; 'Kishon > Vijay Abraham I'; linux-pci@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; 'Bjorn Helgaas'; 'Frank Li'; 'Sascha Hauer'; 'Sean > Cross'; 'Shawn Guo'; 'Siva Reddy Kallam'; 'Srikanth T Shivanand'; 'Troy Kisky'; > 'Yinghai Lu' > Subject: Re: [PATCH RFC] PCI: imx6: remove outbound io/mem ATU region mapping > > On Wednesday, December 04, 2013 at 03:38:49 AM, Richard Zhu wrote: > [...] > > > > [Richard] One Pericom PI7C9X2G303EL pcie switch, and two pcie ep > > > > deivces(one is intel e1000e nic, the other is one xhci device) are > > > > tested on imx6q sabresd board. > > > > > > How/what does have such pericom switch and can be attached to an MX6 > > > sabresdp ? Where can I get it? > > > > [Richard] You can apply the example from Pericom. > > Which one? Please point me to a website or something here. > [Richard] The model of the pcie switch used by me is PI7C9X2G303EL Ver3.0 provided by Pericom. Here is the url of this switch. http://www.pericom.com/products/pcie-switch/?part=PI7C9X2G303EL > > > > Without removing outbound io/mem regions view map during the > > > > cfg0/1 read/write cycle, both of these devices can't work well at my > side. > > > > Works well after remove them during the cfg0/1 read/write cycles. > > > > > > Understood. Given that the iATU programming works on other CPUs > > > (confirmed on st spear and ti dra7xx), we might have some issues > > > with the iATU on MX6 . Is there anything special about the iATU on the > MX6 ? > > > > [Richard] As I know that there is no anything special about the iATU > > on MX6. Let me to make a double check with IC team later. > > Oh this would be absolutelly _amazing_ if you could do that. Thank you very > much! > [...] > Best regards, > Marek Vasut Best Regards Richard Zhu -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
