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[LV-kern-commit] CVS: kernel-2.4/Documentation/cris README,1.1.1.1,1.2
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From: Andy P. <at...@us...> - 2002-04-09 17:08:23
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Update of /cvsroot/linux-vax/kernel-2.4/Documentation/cris In directory usw-pr-cvs1:/tmp/cvs-serv7449/cris Modified Files: README Log Message: synch 2.4.15 commit 28 Index: README =================================================================== RCS file: /cvsroot/linux-vax/kernel-2.4/Documentation/cris/README,v retrieving revision 1.1.1.1 retrieving revision 1.2 diff -u -r1.1.1.1 -r1.2 --- README 25 Feb 2001 23:15:25 -0000 1.1.1.1 +++ README 9 Apr 2002 16:55:41 -0000 1.2 @@ -2,19 +2,27 @@ ================================== $Id$ -This is a port of Linux 2.4 to Axis Communications ETRAX 100LX embedded network CPU. For -more information about CRIS and ETRAX please see further below. +This is a port of Linux 2.4 to Axis Communications ETRAX 100LX embedded +network CPU. For more information about CRIS and ETRAX please see further +below. + +In order to compile this you need a version of gcc with support for the +ETRAX chip family. Please see this link for more information on how to +download the compiler and other tools useful when building and booting +software for the ETRAX platform: -<... to come: instructions on how to grab the right gcc, compiling and booting ...> +http://developer.axis.com/doc/software/devboard_lx/install-howto.html +<more specific information should come in this document later> What is CRIS ? -------------- -CRIS is an acronym for 'Code Reduced Instruction Set'. It is the CPU architecture in Axis -Communication AB's range of embedded network CPU's, called ETRAX. The latest CPU is called -ETRAX 100LX, where LX stands for 'Linux' because the chip was designed to be a good host for -the Linux operating system. +CRIS is an acronym for 'Code Reduced Instruction Set'. It is the CPU +architecture in Axis Communication AB's range of embedded network CPU's, +called ETRAX. The latest CPU is called ETRAX 100LX, where LX stands for +'Linux' because the chip was designed to be a good host for the Linux +operating system. The ETRAX 100LX chip -------------------- @@ -23,8 +31,8 @@ http://www.axis.com/news/us/001101_etrax.htm -The ETRAX 100LX is a 100 MIPS processor with 8kB cache, MMU, and a very broad range of -built-in interfaces, all with modern scatter/gather DMA. +The ETRAX 100LX is a 100 MIPS processor with 8kB cache, MMU, and a very broad +range of built-in interfaces, all with modern scatter/gather DMA. Memory interfaces: @@ -44,40 +52,41 @@ * two parallel-ports * two generic 8-bit ports - (not all interfaces are available at the same time due to chip pin multiplexing) + (not all interfaces are available at the same time due to chip pin + multiplexing) -The previous version of the ETRAX, the ETRAX 100, sits in almost all of Axis shipping -thin-servers like the Axis 2100 web camera or the developer-board. It lacks an MMU so the -Linux we run on that is a version of uClinux (Linux 2.0 without MM-support) ported to the CRIS -architecture. The new Linux 2.4 port has full MM and needs a CPU with an MMU, so it will not -run on the ETRAX 100. - -A version of the Axis developer-board with ETRAX 100LX will be available as soon as the chip -is ramped up (please see http://developer.axis.com for further information on that). +The previous version of the ETRAX, the ETRAX 100, sits in almost all of +Axis shipping thin-servers like the Axis 2100 web camera or the ETRAX 100 +developer-board. It lacks an MMU so the Linux we run on that is a version +of uClinux (Linux 2.0 without MM-support) ported to the CRIS architecture. +The new Linux 2.4 port has full MM and needs a CPU with an MMU, so it will +not run on the ETRAX 100. +A version of the Axis developer-board with ETRAX 100LX (running Linux +2.4) is now available. For more information please see developer.axis.com. Bootlog ------- -Just as an example, this is the debug-output from a boot of Linux 2.4 on an Axis -developer-board with ETRAX 100LX. The displayed BogoMIPS value is 5 times too small :) +Just as an example, this is the debug-output from a boot of Linux 2.4 on +a board with ETRAX 100LX. The displayed BogoMIPS value is 5 times too small :) At the end you see some user-mode programs booting like telnet and ftp daemons. -Linux version 2.4.0-test11 (bj...@go...) (gcc version 2.96 20000427 (experimental)) #358 Wed Nov 22 19:29:15 CET 2000 -ROM fs in RAM, size 368640 bytes +Linux version 2.4.1 (bj...@go...) (gcc version 2.96 20000427 (experimental)) #207 Wed Feb 21 15:48:15 CET 2001 +ROM fs in RAM, size 1376256 bytes Setting up paging and the MMU. -On node 0 totalpages: 1024 -zone(0): 1024 pages. +On node 0 totalpages: 2048 +zone(0): 2048 pages. zone(1): 0 pages. zone(2): 0 pages. -Linux/CRIS port (c) 2000 Axis Communications AB +Linux/CRIS port on ETRAX 100LX (c) 2001 Axis Communications AB Kernel command line: -Calibrating delay loop... 19.92 BogoMIPS -Memory: 6864k/8192k available (531k kernel code, 1328k reserved, 85k data, 24k init) +Calibrating delay loop... 19.91 BogoMIPS +Memory: 13872k/16384k available (587k kernel code, 2512k reserved, 44k data, 24k init) kmem_create: Forcing size word alignment - vm_area_struct kmem_create: Forcing size word alignment - filp -Dentry-cache hash table entries: 1024 (order: 0, 8192 bytes) +Dentry-cache hash table entries: 2048 (order: 1, 16384 bytes) Buffer-cache hash table entries: 2048 (order: 0, 8192 bytes) Page-cache hash table entries: 2048 (order: 0, 8192 bytes) kmem_create: Forcing size word alignment - kiobuf @@ -87,10 +96,10 @@ POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 -kmem_create: Forcing size word alignment - skbuff_head_cache Starting kswapd v1.8 kmem_create: Forcing size word alignment - file lock cache kmem_create: Forcing size word alignment - blkdev_requests +block: queued sectors max/low 9109kB/3036kB, 64 slots per queue ETRAX 100LX 10/100MBit ethernet v2.0 (c) 2000 Axis Communications AB eth0 initialized eth0: changed MAC to 00:40:8C:CD:00:00 @@ -99,29 +108,40 @@ ttyS1 at 0xb0000068 is a builtin UART with DMA ttyS2 at 0xb0000070 is a builtin UART with DMA ttyS3 at 0xb0000078 is a builtin UART with DMA +Axis flash mapping: 200000 at 50000000 +Axis flash: Found 1 x16 CFI device at 0x0 in 16 bit mode + Amd/Fujitsu Extended Query Table v1.0 at 0x0040 +Axis flash: JEDEC Device ID is 0xC4. Assuming broken CFI table. +Axis flash: Swapping erase regions for broken CFI table. +number of CFI chips: 1 + Using default partition table +I2C driver v2.2, (c) 1999-2001 Axis Communications AB +ETRAX 100LX GPIO driver v2.1, (c) 2001 Axis Communications AB NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP kmem_create: Forcing size word alignment - ip_dst_cache IP: routing cache hash table of 1024 buckets, 8Kbytes -TCP: Hash tables configured (established 1024 bind 1024) +TCP: Hash tables configured (established 2048 bind 2048) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. VFS: Mounted root (cramfs filesystem) readonly. Init starts up... +Mounted none on /proc ok. Setting up eth0 with ip 10.13.9.116 and mac 00:40:8c:18:04:60 eth0: changed MAC to 00:40:8C:18:04:60 Setting up lo with ip 127.0.0.1 Default gateway is 10.13.9.1 Hostname is bbox1 Telnetd starting, using port 23. - using /bin/sh as shell. -sftpd[14]: sftpd $Revision$ starting up + using /bin/sash as shell. +sftpd[15]: sftpd $Revision$ starting up + And here is how some /proc entries look: 17# cd /proc 17# cat cpuinfo -cpu : ETRAX +cpu : CRIS cpu revision : 10 cpu model : ETRAX 100LX cache size : 8 kB @@ -133,6 +153,7 @@ ata : yes usb : yes bogomips : 99.84 + 17# cat meminfo total: used: free: shared: buffers: cached: Mem: 7028736 925696 6103040 114688 0 229376 |
