From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinay hegde Date: Wed, 7 Apr 2010 12:11:12 +0530 (IST) Subject: [U-Boot] Regarding P2020 core 1 In-Reply-To: Message-ID: <29372.34975.qm@web7708.mail.in.yahoo.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Kumar, I have ported U-Boot for our new platform (which is based on P2020 and has other platform specific peripherals). So, actually I wanted to know how to disable core 1 in U-boot source code (I see MPC85xx_DEVDISR_CPU0 and MPC85xx_DEVDISR_CPU1 defines in immap_85xx.h, which are not used). So, in my case, when U-boot bringup code runs, it should initialize only core 0 and keep the other core in reset. Sorry, I think my earlier e-mail wasn't clear enough. Thanks Vinay > > Hi All, > > > > We are coming up with a new platform that uses > Freescale P2020 processor and P2020 U-Boot. In this > platform, we will be using only one core (core 0) of P2020 > and will be disabling the core 1 (thro, some hardware > strapping as hardware folks told me). > > > > If anybody has already investigated and knows how to > disable core 1 (and support only core 0) in P2020 U-Boot (or > in general, say mpc8572), please let me know. Any pointers > will be very useful. > > You can use the 'cpu disable' command. > > - k