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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 SPEAr300, |
12 | SPEAr310, SPEAr320 and SPEAr600 SOCs are supported. Support for the SPEAr13XX |
13 | series is in progress. |
14 | |
15 | Hierarchy in SPEAr is as follows: |
16 | |
17 | SPEAr (Platform) |
18 | - SPEAr3XX (3XX SOC series, based on ARM9) |
19 | - SPEAr300 (SOC) |
20 | - SPEAr300_EVB (Evaluation Board) |
21 | - SPEAr310 (SOC) |
22 | - SPEAr310_EVB (Evaluation Board) |
23 | - SPEAr320 (SOC) |
24 | - SPEAr320_EVB (Evaluation Board) |
25 | - SPEAr6XX (6XX SOC series, based on ARM9) |
26 | - SPEAr600 (SOC) |
27 | - SPEAr600_EVB (Evaluation Board) |
28 | - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9) |
29 | - SPEAr1300 (SOC) |
30 | |
31 | Configuration |
32 | ------------- |
33 | |
34 | A generic configuration is provided for each machine, and can be used as the |
35 | default by |
36 | make spear600_defconfig |
37 | make spear300_defconfig |
38 | make spear310_defconfig |
39 | make spear320_defconfig |
40 | |
41 | Layout |
42 | ------ |
43 | |
44 | The common files for multiple machine families (SPEAr3XX, SPEAr6XX and |
45 | SPEAr13XX) are located in the platform code contained in arch/arm/plat-spear |
46 | with headers in plat/. |
47 | |
48 | Each machine series have a directory with name arch/arm/mach-spear followed by |
49 | series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx. |
50 | |
51 | Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c and for |
52 | spear6xx is mach-spear6xx/spear6xx.c. mach-spear* also contain soc/machine |
53 | specific files, like spear300.c, spear310.c, spear320.c and spear600.c. |
54 | mach-spear* also contains board specific files for each machine type. |
55 | |
56 | |
57 | Document Author |
58 | --------------- |
59 | |
60 | Viresh Kumar, (c) 2010 ST Microelectronics |