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Documentation / arm / SPEAr / overview.txt




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Based on kernel version 3.13. Page generated on 2014-01-20 22:00 EST.

1				SPEAr ARM Linux Overview
2				==========================
3	
4	Introduction
5	------------
6	
7	  SPEAr (Structured Processor Enhanced Architecture).
8	  weblink : http://www.st.com/spear
9	
10	  The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are
11	  supported by the 'spear' platform of ARM Linux. Currently SPEAr1310,
12	  SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported.
13	
14	  Hierarchy in SPEAr is as follows:
15	
16	  SPEAr (Platform)
17		- SPEAr3XX (3XX SOC series, based on ARM9)
18			- SPEAr300 (SOC)
19				- SPEAr300 Evaluation Board
20			- SPEAr310 (SOC)
21				- SPEAr310 Evaluation Board
22			- SPEAr320 (SOC)
23				- SPEAr320 Evaluation Board
24		- SPEAr6XX (6XX SOC series, based on ARM9)
25			- SPEAr600 (SOC)
26				- SPEAr600 Evaluation Board
27		- SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)
28			- SPEAr1310 (SOC)
29				- SPEAr1310 Evaluation Board
30			- SPEAr1340 (SOC)
31				- SPEAr1340 Evaluation Board
32	
33	  Configuration
34	  -------------
35	
36	  A generic configuration is provided for each machine, and can be used as the
37	  default by
38		make spear13xx_defconfig
39		make spear3xx_defconfig
40		make spear6xx_defconfig
41	
42	  Layout
43	  ------
44	
45	  The common files for multiple machine families (SPEAr3xx, SPEAr6xx and
46	  SPEAr13xx) are located in the platform code contained in arch/arm/plat-spear
47	  with headers in plat/.
48	
49	  Each machine series have a directory with name arch/arm/mach-spear followed by
50	  series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx.
51	
52	  Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c, for
53	  spear6xx is mach-spear6xx/spear6xx.c and for spear13xx family is
54	  mach-spear13xx/spear13xx.c. mach-spear* also contain soc/machine specific
55	  files, like spear1310.c, spear1340.c spear300.c, spear310.c, spear320.c and
56	  spear600.c.  mach-spear* doesn't contains board specific files as they fully
57	  support Flattened Device Tree.
58	
59	
60	  Document Author
61	  ---------------
62	
63	  Viresh Kumar <viresh.linux@gmail.com>, (c) 2010-2012 ST Microelectronics
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