When I boot the kernel on my ppc850 board, there are something abnormal printed from console:
## Loading RAMDisk Image at 10100000 ... Image Name: Simple Embedded Linux Framework Created: 2004-12-02 3:28:57 UTC Image Type: PowerPC Linux RAMDisk Image (gzip compressed) Data Size: 1459535 Bytes = 1.4 MB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## initrd at 0x10100040 ... 0x1026458E (len=1459535=0x16454F) Loading Ramdisk to 00242000, end 003a654f ... OK ## Transferring control to Linux (at address 00000000) ... Linux version 2.4.24-pre2 (root@localhost.localdomain) (gcc version 3.2.2
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17 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #1 ¶þ 12ÔÂ 7 10:27:24 CST 2004 On node 0 totalpages: 1024 zone(0): 1024 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram rw
ip=192.168.1.81:192.168.1.80:192.168.1.1:2
55.255.255.0:pighead:eth0:off panic=1 Decrementer Frequency = 187500000/60 Warning: real time clock seems stuck! Calibrating delay loop... 49.66 BogoMIPS Memory: 964k available (1184k kernel code, 400k data, 56k init, 0k
highmem)
Dentry cache hash table entries: 512 (order: 0, 4096 bytes) Inode cache hash table entries: 512 (order: 0, 4096 bytes) Mount cache hash table entries: 512 (order: 0, 4096 bytes) Buffer cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 1024 (order: 0, 4096 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications
AB.
i2c-core.o: i2c core module version 2.6.1 (20010830) CPM UART driver version 0.04 ttyS0 at 0x0280 is on SMC1 using BRG pty: 256 Unix98 ptys configured Status LED driver $Revision: 1.0 $ initialized eth0: CPM ENET Version 0.2 on SCC2, 00:30:1f:23:11:de RAMDISK driver initialized: 16 RAM disks of 6144K size 1024 blocksize CFI: Found no TQM8xxL Bank 0 device at location zero
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TQM8xxL: No supported flash chips found!
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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 512 bind 1024)
Then system hangs forever. I read the manual(13.2.6. Linux hangs after uncompressing the kernel), and I make sure that the clocks_in_mhz and CFG_IMMR are right defined. I doubt the reason is the flash can't be found by kernel. The flash model is INTEL28F320S3 and it supports CFI command. I have used it all right with strataflash driver in U-Boot. When I used "make menuconfig", I set the flowing configs: [RAM/ROM/FLASH chip drivers] <*>Detect flash chips by Common Flash Interface (CFI) probe <*>Support for Intel/Sharp flash chips <*>Support for ROM chips in bus mapping
Did I config something wrong?