From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: exynos5422-odroid-xu3: MCPM: only 6 of 8 CPUs coming online Date: Thu, 09 Oct 2014 14:58:18 -0700 Message-ID: <7hzjd4lxc5.fsf@deeprootsystems.com> References: <7133556.456161412823997169.JavaMail.weblogic@epml02> Mime-Version: 1.0 Content-Type: text/plain Return-path: Received: from mail-pa0-f50.google.com ([209.85.220.50]:35957 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751161AbaJIV6W (ORCPT ); Thu, 9 Oct 2014 17:58:22 -0400 Received: by mail-pa0-f50.google.com with SMTP id kx10so478255pab.37 for ; Thu, 09 Oct 2014 14:58:21 -0700 (PDT) In-Reply-To: <7133556.456161412823997169.JavaMail.weblogic@epml02> (Abhilash Kesavan's message of "Thu, 09 Oct 2014 03:06:38 +0000 (GMT)") Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: a.kesavan@samsung.com Cc: CHANDER KASHYAP , Mauro Ribeiro , "linux-samsung-soc@vger.kernel.org" , "linaro-kernel@lists.linaro.org" Hi Abhilash, Abhilash Kesavan writes: > I had noticed a similar issue where only 6 cores would come up during > development on 5420. This was because there was a check in our u-boot > secondary boot-up path which would put a core into WFI if a flag was > not present and hence fail to boot. I wonder if it is the same > situation in your case too. > Is the u-boot for odroid-xu3 publically available or can you check if there is any such code present in your secondary bring-up path. I'm using the hardkernel u-boot[1], branch: odroidxu3-v2012.07. I'm currently using the pre-built binaries that are in the sd_fuse/hardkernel directory of that branch, but I can rebuild u-boot if needed. I'm not very familiar with u-boot, but if f you have some pointers where to start looking in that code, that would be helpful. Kevin [1] https://github.com/hardkernel/u-boot.git