topic Re: pcie打开内核不能启动 in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911362#M137354 <HTML><HEAD></HEAD><BODY><P>Hello Qiang,</P><P></P><P>&nbsp;&nbsp;&nbsp;&nbsp; These 2 lines of source code in PCIe driver are used to access&nbsp; register of PCIe controller. Only when there is an accident in PCIe Controller ,&nbsp; the problem you mentioned will happen.</P><P>&nbsp;&nbsp;&nbsp;&nbsp; So please check if there is a clock problem!</P><P>&nbsp;&nbsp;&nbsp;&nbsp; In addtion, i.MX8MQ is using external clock by default.&nbsp; Pay attent to this , please!</P><P></P><P>Have a nice day!</P><P>BR,</P><P>Weidong</P></BODY></HTML> Tue, 15 Oct 2019 03:14:47 GMT weidong_sun 2019-10-15T03:14:47Z pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911361#M137353 <HTML><HEAD></HEAD><BODY><P>&nbsp;&nbsp;&nbsp;imx8mq板子android9.0.1.0系统，dts中设置pcie0是okay，clk、en、rst引脚都配置正确，内核就起不来了，具体查看代码是卡在这里，打印日志如下：</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/91292iFF65CC130432619C/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>[ 3.259858] ak4458 2-0010: ASoC: failed to probe component -6<BR />[ 3.260418] imx-ak4458 sound-ak4458: ASoC: failed to instantiate card -6<BR />[ 3.261008] imx-ak4458 sound-ak4458: snd_soc_register_card failed (-6)<BR />[ 3.261575] ak4497 2-0011: ak4497 mute_gpio(4294967295) is invalid<BR />[ 3.272492] ak4497 2-0011: ASoC: failed to probe component -6<BR />[ 3.272657] imx-ak4497 sound-ak4497: ASoC: failed to instantiate card -6<BR />[ 3.273237] imx-ak4497 sound-ak4497: snd_soc_register_card failed (-6)<BR />[ 3.291206] ak5558 2-0013: ASoC: failed to probe component -6<BR />[ 3.291749] imx-ak5558 sound-ak5558: ASoC: failed to instantiate card -6<BR />[ 3.292295] imx-ak5558 sound-ak5558: snd_soc_register_card failed (-6)<BR />[ 3.292959] imx-cdnhdmi sound-hdmi: i2s-hifi &lt;-&gt; 30050000.sai mapping ok<BR />[ 3.292982] imx-cdnhdmi sound-hdmi: ASoC: no DMI vendor name!<BR />[ 3.294785] NET: Registered protocol family 26<BR />[ 3.294793] u32 classifier<BR />[ 3.294796] Actions configured<BR />[ 3.294812] Netfilter messages via NETLINK v0.30.<BR />[ 3.295102] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)<BR />[ 3.295355] ctnetlink v0.93: registering with nfnetlink.<BR />[ 3.295842] xt_time: kernel timezone is -0000<BR />[ 3.295952] IPv4 over IPsec tunneling driver<BR />[ 3.296540] ip_tables: (C) 2000-2006 Netfilter Core Team<BR />[ 3.377912] usb 1-1.4: USB disconnect, device number 3<BR />[ 3.383735] arp_tables: arp_tables: (C) 2002 David S. Miller<BR />[ 3.390378] Initializing XFRM netlink socket<BR />[ 3.395263] NET: Registered protocol family 10<BR />[ 3.401142] Segment Routing with IPv6<BR />[ 3.404896] mip6: Mobile IPv6<BR />[ 3.407882] ip6_tables: (C) 2000-2006 Netfilter Core Team<BR />[ 3.414425] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver<BR />[ 3.421326] NET: Registered protocol family 17<BR />[ 3.425865] NET: Registered protocol family 15<BR />[ 3.430328] can: controller area network core (rev 20170425 abi 9)<BR />[ 3.436631] NET: Registered protocol family 29<BR />[ 3.441100] can: raw protocol (rev 20170425)<BR />[ 3.445445] can: broadcast manager protocol (rev 20170425 t)<BR />[ 3.451126] can: netlink gateway (rev 20170425) max_hops=1<BR />[ 3.457607] Bluetooth: RFCOMM TTY layer initialized<BR />[ 3.462514] Bluetooth: RFCOMM socket layer initialized<BR />[ 3.467744] Bluetooth: RFCOMM ver 1.11<BR />[ 3.471520] Bluetooth: BNEP (Ethernet Emulation) ver 1.3<BR />[ 3.476907] Bluetooth: BNEP filters: protocol multicast<BR />[ 3.482156] Bluetooth: BNEP socket layer initialized<BR />[ 3.487196] Bluetooth: HIDP (Human Interface Emulation) ver 1.2<BR />[ 3.493138] Bluetooth: HIDP socket layer initialized<BR />[ 3.498177] lib80211: common routines for IEEE802.11 drivers<BR />[ 3.504251] 9pnet: Installing 9P2000 support<BR />[ 3.512339] registered taskstats version 1<BR />[ 3.529449] cpu cpu0: registered imx8mq-cpufreq<BR />[ 3.534706] imx6q-pcie 33800000.pcie: 33800000.pcie supply epdev_on not found, using dummy regulator<BR />[ 3.544138] OF: PCI: host bridge /pcie@0x33800000 ranges:<BR />[ 3.549608] OF: PCI: No bus range found for /pcie@0x33800000, using [bus 00-ff]<BR />[ 3.557107] OF: PCI: IO 0x1ff80000..0x1ff8ffff -&gt; 0x00000000<BR />[ 3.563150] OF: PCI: MEM 0x18000000..0x1fefffff -&gt; 0x18000000<BR />[ 3.569997] imx6q-pcie 33800000.pcie: pcie phy pll is locked.</P></BODY></HTML> Sat, 12 Oct 2019 09:19:34 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911361#M137353 957992093 2019-10-12T09:19:34Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911362#M137354 <HTML><HEAD></HEAD><BODY><P>Hello Qiang,</P><P></P><P>&nbsp;&nbsp;&nbsp;&nbsp; These 2 lines of source code in PCIe driver are used to access&nbsp; register of PCIe controller. Only when there is an accident in PCIe Controller ,&nbsp; the problem you mentioned will happen.</P><P>&nbsp;&nbsp;&nbsp;&nbsp; So please check if there is a clock problem!</P><P>&nbsp;&nbsp;&nbsp;&nbsp; In addtion, i.MX8MQ is using external clock by default.&nbsp; Pay attent to this , please!</P><P></P><P>Have a nice day!</P><P>BR,</P><P>Weidong</P></BODY></HTML> Tue, 15 Oct 2019 03:14:47 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911362#M137354 weidong_sun 2019-10-15T03:14:47Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911363#M137355 <HTML><HEAD></HEAD><BODY><P>你好，<SPAN style="color: #51626f; background-color: #ffffff;">Weidong：</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">&nbsp;&nbsp;&nbsp;感谢你的回答，正如你所说，外部没有提供时钟的芯片，如果我想启用PCIE内部时钟，dts和内核源码需要怎么配置和改动，才能让PCIE正常工作，另外使用PCIE内部时钟相较于外部时钟有什么缺点和是否有相关手册。</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">谢谢！</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">maqiang</SPAN></P></BODY></HTML> Tue, 15 Oct 2019 06:00:56 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911363#M137355 957992093 2019-10-15T06:00:56Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911364#M137356 <HTML><HEAD></HEAD><BODY><P>Use the dts file, please!</P><P>fsl-imx8mm-evk-revb.dts</P><P>it is configured as internal clock for PCIe.</P><P></P><P></P><P>weidong</P></BODY></HTML> Tue, 15 Oct 2019 09:19:27 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911364#M137356 weidong_sun 2019-10-15T09:19:27Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911365#M137357 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #51626f; background-color: #ffffff;">您好：</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">&nbsp;&nbsp;&nbsp;fsl-imx8mm-evk-revb.dts在哪里可以找到？</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">还有，如果想自己修改dts文件，该如果改动？</SPAN></P><P><SPAN style="color: #51626f; background-color: #ffffff;">谢谢</SPAN></P></BODY></HTML> Thu, 28 Nov 2019 07:49:09 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911365#M137357 zhangnan 2019-11-28T07:49:09Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911366#M137358 <HTML><HEAD></HEAD><BODY><P>I met the same question and look forward to your reply！Thank you！</P></BODY></HTML> Fri, 13 Dec 2019 10:00:32 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/911366#M137358 迎风远洋 2019-12-13T10:00:32Z Re: pcie打开内核不能启动 https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/1309503#M177109 <P>您好，</P><P>请问你解决这个问题了吗，我也遇到了这样的问题。</P><P>谢谢</P> Mon, 19 Jul 2021 03:35:42 GMT https://community.nxp.com/t5/i-MX-Processors/pcie%E6%89%93%E5%BC%80%E5%86%85%E6%A0%B8%E4%B8%8D%E8%83%BD%E5%90%AF%E5%8A%A8/m-p/1309503#M177109 jming 2021-07-19T03:35:42Z