From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <369F2600.4525430D@siemens.at> Date: Fri, 15 Jan 1999 12:26:56 +0100 From: Helmut Buchsbaum MIME-Version: 1.0 To: linuxppc-dev@lists.linuxppc.org Subject: FADS823 - the neverending story Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: I'm still struggling around to get my FADS823 board start any kind of /bin/sh or /sbin/init, but without any success. Today I tried the tarball Dan posted in the end of December (with only minor modifications), but again - no success. I tried using initrd (with Dan's root file system mbxroot.tar.gz) and rootnfs, but none of these configurations started up an initial shell. The kernel itself is idle and obviously reschedules process 1 again and again, but this seems kind of stuck after executing SET_PAGE_DIR :-( Since there is an increasing number of success stories for embedded 8xx boards, I more and more suspect the FADS itself and my CPU MPC823 rev.0 causing my problems. Unfortunately I'm still waiting for my upgrade CPU's from Motorola I ordered before Xmas. Now I wonder which CPU revision Dan used in his successful port for the 823-based Bright Star Engineering ip-Engine board. BTW, one of the major problems I had, is adapting the CPU's internal register structure. Since the MPC823 only supports one SCC, but an addition USB, Video, etc there is only a minimal subset (like SCC2, SMC1, SMC2) that can be used within the immap_t structure, which is definitely derived from MPC860. So why don't we use seperate typdefs (e.g. immap860_t, immap823_t,..) and #define'ing them properly (#define immap_t immap860_t)? Another question is, why can't we use mpc860.h, mpc823.h by Motorola? Are there any copyright problems? What I liked in Dan' tarball, is distinguishing the 8xx CPUs by CONFIG_MPC860, CONFIG_MPC823, ... and the boards via CONFIG_MBX, CONFIG_RPXLITE, ... I'll try to follow this for any specific changes I make ;-) -- Helmut ********************************************************* * Helmut Buchsbaum * Siemens AG Austria * * Tel: ++43-1-1707-36686 * EZE PN 5 * * Fax: ++43-1-1707-55169 * Erdberger Laende 26 * * * A-1030 Vienna/Europe * ********************************************************* * mailto:Helmut.Buchsbaum@siemens.at * * buc@eze22.siemens.co.at * ********************************************************* [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. To unsubscribe from linuxppc-dev, send ]] [[ the message 'unsubscribe' to linuxppc-dev-request@lists.linuxppc.org ]]