From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailext.televes.com (unknown [212.163.42.136]) by ozlabs.org (Postfix) with ESMTP id 6267567A2F for ; Tue, 29 Mar 2005 16:51:29 +1000 (EST) Received: from localhost (localhost [127.0.0.1]) by mailext.televes.com (Postfix) with ESMTP id 079ED2B7544 for ; Tue, 29 Mar 2005 08:56:42 +0200 (CEST) Received: from mailext.televes.com ([127.0.0.1]) by localhost (mailext [127.0.0.1]) (amavisd-new, port 10024) with SMTP id 18487-06 for ; Tue, 29 Mar 2005 08:56:41 +0200 (CEST) Received: from televes.com (unknown [212.163.42.137]) by mailext.televes.com (Postfix) with SMTP id BB4402B7542 for ; Tue, 29 Mar 2005 08:56:41 +0200 (CEST) Message-ID: <51DB8827D393D411BB69003048003F4601B1C1CE@tvesntr> From: Bastos Fernandez Alexandre To: "'Walter L. Wimer III'" Date: Tue, 29 Mar 2005 08:29:50 +0200 MIME-Version: 1.0 Content-Type: text/plain Cc: linuxppc-embedded@ozlabs.org Subject: RE: Problem running Linux 2.6.11 on MPC8272ADS List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi, >>From "linux/arch/ppc/platforms/pq2ads.h" #define BCSR_ADDR ((uint) 0xf4500000) >>From "u-boot/include/configs/MPC8260ADS.h" #define CFG_BCSR 0xF4500000 So ... Which version of u-boot and/or linux tree are you using? With linuxppc-2.5 and u-boot 1.2 everything works fine for me. Maybe Mike's problem is other. Maybe not. :-) Best regards, Alex > -----Original Message----- > From: Walter L. Wimer III [SMTP:walt.wimer@timesys.com] > Sent: Monday, March 28, 2005 6:07 PM > To: Mike Rapoport > Cc: linuxppc-embedded@ozlabs.org > Subject: Re: Problem running Linux 2.6.11 on MPC8272ADS > > > Hi Mike, > > I had the same "hang" experience. The file arch/ppc/platforms/pq2ads.c > contains the following function: > > void __init > m82xx_board_setup(void) > { > /* Enable the 2nd UART port */ > *(volatile uint *)(BCSR_ADDR + 4) &= ~BCSR1_RS232_EN2; > } > > > I had to ifdef-out the assignment statement above. It appears that the > definition for BCSR_ADDR in the kernel code differs from what U-Boot is > using, and that area of memory isn't properly mapped into the kernel > address space this early in the boot sequence. As a result, I was > getting an Oops() before the console was even enabled (I could see the > Oops message by examining the kernel's printk log buffer using a > BDI-2000 hardware debugger). > > > > Good luck, > > Walt Wimer > TimeSys Corporation > > > > > On Sun, 2005-03-27 at 11:31 +0200, Mike Rapoport wrote: > > Hi, > > I'm trying to bring up the Linux 2.6.11 on MPC8272ADS and it seem to > > hang up at the very beginning. > > I use ads8272_defconfig and then enable console on SCC: > > > > CONFIG_SERIAL_CPM=y > > CONFIG_SERIAL_CPM_CONSOLE=y > > CONFIG_SERIAL_CPM_SCC1=y > > > > > > when I boot the kernel from the u-boot the system hangs up right after > > the kernel decompression. > > > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded