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diff --git a/Documentation/cris/README b/Documentation/cris/README deleted file mode 100644 index 8dbdb1a44429..000000000000 --- a/Documentation/cris/README +++ /dev/null @@ -1,195 +0,0 @@ -Linux on the CRIS architecture -============================== - -This is a port of Linux to Axis Communications ETRAX 100LX, -ETRAX FS and ARTPEC-3 embedded network CPUs. - -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: - -http://developer.axis.com/wiki/doku.php?id=axis:install-howto-2_20 - -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 ETRAX 100LX chip --------------------- - -For reference, please see the following link: - -http://www.axis.com/products/dev_etrax_100lx/index.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. - -Memory interfaces: - - * SRAM - * NOR-flash/ROM - * EDO or page-mode DRAM - * SDRAM - -I/O interfaces: - - * one 10/100 Mbit/s ethernet controller - * four serial-ports (up to 6 Mbit/s) - * two synchronous serial-ports for multimedia codec's etc. - * USB host controller and USB slave - * ATA - * SCSI - * two parallel-ports - * two generic 8-bit ports - - (not all interfaces are available at the same time due to chip pin - multiplexing) - -ETRAX 100LX is CRISv10 architecture. - - -The ETRAX FS and ARTPEC-3 chips -------------------------------- - -The ETRAX FS is a 200MHz 32-bit RISC processor with on-chip 16kB -I-cache and 16kB D-cache and with a wide range of device interfaces -including multiple high speed serial ports and an integrated USB 1.1 PHY. - -The ARTPEC-3 is a variant of the ETRAX FS with additional IO-units -used by the Axis Communications network cameras. - -See below link for more information: - -http://www.axis.com/products/dev_etrax_fs/index.htm - -ETRAX FS and ARTPEC-3 are both CRISv32 architectures. - -Bootlog -------- - -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 2.4.1 (bjornw@godzilla.axis.se) (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: 2048 -zone(0): 2048 pages. -zone(1): 0 pages. -zone(2): 0 pages. -Linux/CRIS port on ETRAX 100LX (c) 2001 Axis Communications AB -Kernel command line: -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: 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 -kmem_create: Forcing size word alignment - bdev_cache -Inode-cache hash table entries: 1024 (order: 0, 8192 bytes) -kmem_create: Forcing size word alignment - inode_cache -POSIX conformance testing by UNIFIX -Linux NET4.0 for Linux 2.4 -Based upon Swansea University Computer Society NET3.039 -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 -ETRAX 100LX serial-driver $Revision: 1.7 $, (c) 2000 Axis Communications AB -ttyS0 at 0xb0000060 is a builtin UART with DMA -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 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/sash as shell. -sftpd[15]: sftpd $Revision: 1.7 $ starting up - - - -And here is how some /proc entries look: - -17# cd /proc -17# cat cpuinfo -cpu : CRIS -cpu revision : 10 -cpu model : ETRAX 100LX -cache size : 8 kB -fpu : no -mmu : yes -ethernet : 10/100 Mbps -token ring : no -scsi : yes -ata : yes -usb : yes -bogomips : 99.84 - -17# cat meminfo - total: used: free: shared: buffers: cached: -Mem: 7028736 925696 6103040 114688 0 229376 -Swap: 0 0 0 -MemTotal: 6864 kB -MemFree: 5960 kB -MemShared: 112 kB -Buffers: 0 kB -Cached: 224 kB -Active: 224 kB -Inact_dirty: 0 kB -Inact_clean: 0 kB -Inact_target: 0 kB -HighTotal: 0 kB -HighFree: 0 kB -LowTotal: 6864 kB -LowFree: 5960 kB -SwapTotal: 0 kB -SwapFree: 0 kB -17# ls -l /bin --rwxr-xr-x 1 342 100 10356 Jan 01 00:00 ifconfig --rwxr-xr-x 1 342 100 17548 Jan 01 00:00 init --rwxr-xr-x 1 342 100 9488 Jan 01 00:00 route --rwxr-xr-x 1 342 100 46036 Jan 01 00:00 sftpd --rwxr-xr-x 1 342 100 48104 Jan 01 00:00 sh --rwxr-xr-x 1 342 100 16252 Jan 01 00:00 telnetd - - - - - - - - - |