From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <01C19D04.235222E0.svacca@valcom.com> From: Steven Vacca Reply-To: "svacca@valcom.com" To: "LinuxEmbeddedMailList (E-mail)" Subject: mpc860 vs. mpc860T Date: Mon, 14 Jan 2002 14:02:42 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: I have 2 bds., the BD #1 is custom designed and based very closely on the design of the BD #2. The main difference is BD #1 uses an mpc860T and BD #2 uses an mpc860. Both have 32 Meg DRAM, 50MHz. I can use the exact same Flash Boot code on each, and download the exact same Linux kernel and app to each. BD #2 (mpc860) works perfectly, all the way thru to the app executing threads, etc. BD #1 (mpc860T) works up until at various points between when the kernel initializes itself, and the app execution begins, it gets exception errors, usually something similar to the following: Kernel panic: kernel access of bad area pc c0023634 lr c00235ec address 813F004C tsk kswapd/5 or, Kernel panic: ramdisk: request list destroyed Does anyone know of any differences between the 2 CPU's, other than the mpc860T's internal FEC section and the MII interface on port D, that might cause such problems? Thanks, Steven ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/