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<p class="MsoNormal"><span style="font-size:11.0pt">Hi Tony,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">How do you append this to bootargs, can you please give me some example and I have to enable this in my production code.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">-Vijay<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">"Tony_Ao@wiwynn.com" <Tony_Ao@wiwynn.com><br>
<b>Date: </b>Tuesday, January 22, 2019 at 9:22 PM<br>
<b>To: </b>Vijay Khemka <vijaykhemka@fb.com>, "openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org><br>
<b>Subject: </b>RE: configuring lpc register from user space<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D">Hi Vijay,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D">If you want to use devmem to set the specific register, you can append mem.devmem to bootargs and restart the system.</span><o:p></o:p></p>
<pre style="margin-bottom:7.5pt;mso-line-height-alt:10.75pt;background:white;word-break:break-all"><span style="font-family:"Times New Roman",serif;color:#1F497D">Then you can set the specific register using devmem.</span><o:p></o:p></pre>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D">You can refer the below link for details.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D"><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__patchwork.ozlabs.org_patch_982894_&d=DwMGaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=v9MU0Ki9pWnTXCWwjHPVgpnCR80vXkkcrIaqU7USl5g&m=KA69FVnlR8bLEMZ31BR4OQYBvagLgpv1hn8STKGirbo&s=hzAe_Ozp-uao2QqzTI-4i7xWFnFPihbN1lFEqIUy0aA&e=">https://patchwork.ozlabs.org/patch/982894/</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D;mso-fareast-language:ZH-CN">Regards,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D;mso-fareast-language:ZH-CN">Tony
</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> openbmc [mailto:openbmc-bounces+tony_ao=wiwynn.com@lists.ozlabs.org]
<b>On Behalf Of </b>Vijay Khemka<br>
<b>Sent:</b> Wednesday, January 23, 2019 8:02 AM<br>
<b>To:</b> openbmc@lists.ozlabs.org<br>
<b>Subject:</b> configuring lpc register from user space</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Team,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I know /dev/mem is not supported in production, I need to configure some lpc register to route uart output, so please suggest what is the best ways to do the same. Is there any application or driver interface
available which can be used to set some lpc register like 0x1E78909C.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">-Vijay</span><o:p></o:p></p>
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