Re: Problems with mount system call -- cannot mount procfs!
From: James Dougherty <hidden>
Date: 2002-07-31 19:03:04
Thanks Bhupi, I checked out my ppcboot early_init.S and the ppcboot startup files. In ppcboot-1.1.4/cpu/mpc824x/start.S #ifndef CONFIG_MUSENKI /* Enable and invalidate data cache. */ mfspr r3, HID0 mr r2, r3 ori r3, r3, HID0_DCE | HID0_DCI ori r2, r2, HID0_DCE sync mtspr HID0, r3 mtspr HID0, r2 sync /* Allocate Initial RAM in data cache. */ lis r3, CFG_INIT_RAM_ADDR@h ori r3, r3, CFG_INIT_RAM_ADDR@l li r2, 128 mtctr r2 1: dcbz r0, r3 addi r3, r3, 32 bdnz 1b /* Lock way0 in data cache. */ mfspr r3, 1011 lis r2, 0xffff ori r2, r2, 0xff1f and r3, r3, r2 ori r3, r3, 0x0080 sync mtspr 1011, r3 #endif /* CONFIG_MUSENKI */ I remove this code with an ifdef: #if !defined(CONFIG_MUSENKI) && !defined(CONFIG_BMW) And then rebuilt and boot linux-2.4.19-rc3 (latest rsync from mvista.com yesterday)! Does the setup code above work on Sandpoint, or another MPC824x system? -James eth0:Broadcom BCM5701 1000Base-T,HALT,POWER DOWN,done - offline. ## Booting image at 00100000 ... Image Name: vmlinux.bin.gz Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 771776 Bytes = 753 kB = 0 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK Uncompressing Kernel Image ... OK Memory BAT mapping: BAT2=64Mb, BAT3=0Mb, residual: 0Mb Linux version 2.4.19-rc3 (jfd@que) (gcc version 2.95.3 20010111 (prerelease/franzo/20010111)) #34 Wed Jul 31 11:49:35 PDT 2002 CPU:82xx: 32 I-Cache Block Size, 32 D-Cache Block Size PVR: 0x810000 PPCBoot Environment: 0xc01af57c IP PNP: 802.3 Ethernet Address=<0:0:10:18:10:10> cpu0: MPC8245/KAHLUA-II : BMW Platform : 64MB RAM: BPLD Rev. 6e NOTICE: mounting root file system via NFS IP PNP: switch-2: eth0 IP 172.16.40.114/255.255.240.0 gateway 10.16.64.1 server 172.16.40.111 On node 0 totalpages: 16384 zone(0): 16384 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: time_init: decrementer frequency = 16.501146 MHz Calibrating delay loop... 175.71 BogoMIPS Memory: 62556k available (1376k kernel code, 476k data, 96k init, 0k highmem) Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) Inode cache hash table entries: 4096 (order: 3, 32768 bytes) Mount-cache hash table entries: 1024 (order: 1, 8192 bytes) Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) Page-cache hash table entries: 16384 (order: 4, 65536 bytes) POSIX conformance testing by UNIFIX PCI: Probing PCI hardware Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd devfs: v1.12a (20020514) Richard Gooch (rgooch@atnf.csiro.au) devfs: boot_options: 0x1 Installing knfsd (copyright (C) 1996 okir@monad.swb.de). JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. pty: 256 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled Testing ttyS0 (0xf7f51500, 0xf7f51500)... Testing ttyS1 (0xfc004600, 0xfc004600)... ttyS00 at 0xf7f51500 (irq = 24) is a ST16650 ttyS01 at 0xfc004600 (irq = 25) is a 16550A Real Time Clock Driver v1.10e RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize Broadcom Gigabit Ethernet Driver bcm5700 ver. 3.0.7 (07/17/02) eth0: Broadcom BCM5701 found at mem bfff0000, IRQ 1, node addr 000010181010 eth0: Broadcom BCM5701 Integrated Copper transceiver found eth0: Scatter-gather ON, 64-bit DMA ON, Tx Checksum ON, Rx Checksum ON, 802.1Q VLAN ON bond0 registered without MII link monitoring, in bonding mode. NFTL driver: nftlcore.c $Revision: 1.85 $, nftlmount.c $Revision: 1.25 $ rtc: unable to get misc minor NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 4096 bind 4096) bcm5700: eth0 NIC Link is UP, 100 Mbps half duplex IP-Config: Gateway not on directly connected network. NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. 802.1Q VLAN Support v1.7 Ben Greear [off-list ref] All bugs added by David S. Miller [off-list ref] Looking up port of RPC 100003/2 on 172.16.40.111 Looking up port of RPC 100005/1 on 172.16.40.111 VFS: Mounted root (nfs filesystem). Mounted devfs on /dev Freeing unused kernel memory: 96k init INIT: version 2.78 booting Mounting local filesystems... not mounted anything Setting up symlinks in /dev...done. Setting up extra devices in /dev...done. Starting devfsd...Started device management daemon for /dev INIT: Entering runlevel: 2 Starting internet superserver: inetd. Welcome to Linux/PPC MPC8245/BMW switch-2 login:
quoted hunk
Hi , Disabling the cache in ppcbot will not help because linux will again enable in arch/ppc/kernel/head.S. So u pls disable the cache there & try to run the linux. LEt's ...see Deep into silicon with linux.... www.gdatech.com Somthing good after beer...........Linux--- James Dougherty <jfd@broadcom.com> wrote:quoted
Hi Bhupi,quoted
hi , By seeing ur kernel log it seems that u r havingsomequoted
problem with ur SDRAM.Interesting... I came to this conclusion last week and am now using the same SDRAM settings that VxWorks is using. Then again, Linux is more memory intensive then VxWorks.quoted
Can u try to do complete SDRAM test in ur ppcboot.Uquoted
are getting illegal instruction-- sig 4.How do I set this up?quoted
It may also be cache problem. If ur instructioncachequoted
is not intialized properly.I am enabling the ICACHE in PPCBoot. Perhaps I should disable this?quoted
So u will have to verify both the things.Thanks for the pointers. I will verify this... More soon ... -James -- James F. Dougherty, III Broadcom Corporation jfd@broadcom.com (408) 501-8273
-- James F. Dougherty, III Broadcom Corporation jfd@broadcom.com (408) 501-8273 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/