ARC LINUX RELEASE NOTES
=======================

Product   : Linux for ARC cores
MileStone : First arc-linux.org release
Version   : 2.6.19
Date      : June 15, 2007


	

Table of Contents
-----------------

1.  Overview
2.  Features Supported
3.  Known Limitations and Defects
4.  Contact Information
5.  Reference 


1. Overview
-----------
	This is the Linux port for the family of configurable ARC cores.
	More info on ARC cores at 
	http://www.arc.com/configurablecores/


2. Features Supported 
---------------------
	2.1 June 15, 2007
	----------------
	1. Support for ARC750D based processors, ARCangel3 and ARCangle4 
	   development platforms.
	2. Build compatible with ARC GCC-3.4.x release.
	3. Fast context switching using ARC700 MMU's multiple address spaces.
	4. Lazy TLB flushing for improved multi tasking performance.
	5. I-cache and D-cache support with automatic configuration
	   detection.
	6. Support for dynamic kernel modules.
	7. Kernel preemption support.
	8. Complete ptrace support for user-level debugging.
	9. Support for boot-time kernel parameters through u-boot.
	10. Support for ARC peripherals (UART, EMAC-2.7).


3. Known Limitations and Defects
--------------------------------
	1. MMU-less ARC600 core not supported yet.
	2. Lower throughput for writes to NFS partition at wsize>=8192 for 
	   files bigger than 100MB.

4. Contact Information  
----------------------
	For bug reporting and general queries please use the mailing list at 
	http://arc-linux.org/mailman/listinfo/arc-linux-dev


5. References
-------------
	1. ARCCompact ISA Reference Manual
	2. ARC700 processor manuals
	3. ARC peripherals manuals
	4. ARC700 Linux User Guide
     


Linux Kernel Team,
Celunite Inc.