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1 | Samsung ARM Linux Overview | ||
2 | ========================== | ||
3 | |||
4 | Introduction | ||
5 | ------------ | ||
6 | |||
7 | The Samsung range of ARM SoCs spans many similar devices, from the initial | ||
8 | ARM9 through to the newest ARM cores. This document shows an overview of | ||
9 | the current kernel support, how to use it and where to find the code | ||
10 | that supports this. | ||
11 | |||
12 | The currently supported SoCs are: | ||
13 | |||
14 | - S3C24XX: See Documentation/arm/Samsung-S3C24XX/Overview.txt for full list | ||
15 | - S3C64XX: S3C6400 and S3C6410 | ||
16 | - S5P6440 | ||
17 | - S5P6442 | ||
18 | - S5PC100 | ||
19 | - S5PC110 / S5PV210 | ||
20 | |||
21 | |||
22 | S3C24XX Systems | ||
23 | --------------- | ||
24 | |||
25 | There is still documentation in Documnetation/arm/Samsung-S3C24XX/ which | ||
26 | deals with the architecture and drivers specific to these devices. | ||
27 | |||
28 | See Documentation/arm/Samsung-S3C24XX/Overview.txt for more information | ||
29 | on the implementation details and specific support. | ||
30 | |||
31 | |||
32 | Configuration | ||
33 | ------------- | ||
34 | |||
35 | A number of configurations are supplied, as there is no current way of | ||
36 | unifying all the SoCs into one kernel. | ||
37 | |||
38 | s5p6440_defconfig - S5P6440 specific default configuration | ||
39 | s5p6442_defconfig - S5P6442 specific default configuration | ||
40 | s5pc100_defconfig - S5PC100 specific default configuration | ||
41 | s5pc110_defconfig - S5PC110 specific default configuration | ||
42 | s5pv210_defconfig - S5PV210 specific default configuration | ||
43 | |||
44 | |||
45 | Layout | ||
46 | ------ | ||
47 | |||
48 | The directory layout is currently being restructured, and consists of | ||
49 | several platform directories and then the machine specific directories | ||
50 | of the CPUs being built for. | ||
51 | |||
52 | plat-samsung provides the base for all the implementations, and is the | ||
53 | last in the line of include directories that are processed for the build | ||
54 | specific information. It contains the base clock, GPIO and device definitions | ||
55 | to get the system running. | ||
56 | |||
57 | plat-s3c24xx is for s3c24xx specific builds, see the S3C24XX docs. | ||
58 | |||
59 | plat-s5p is for s5p specific builds, and contains common support for the | ||
60 | S5P specific systems. Not all S5Ps use all the features in this directory | ||
61 | due to differences in the hardware. | ||
62 | |||
63 | |||
64 | Layout changes | ||
65 | -------------- | ||
66 | |||
67 | The old plat-s3c and plat-s5pc1xx directories have been removed, with | ||
68 | support moved to either plat-samsung or plat-s5p as necessary. These moves | ||
69 | where to simplify the include and dependency issues involved with having | ||
70 | so many different platform directories. | ||
71 | |||
72 | It was decided to remove plat-s5pc1xx as some of the support was already | ||
73 | in plat-s5p or plat-samsung, with the S5PC110 support added with S5PV210 | ||
74 | the only user was the S5PC100. The S5PC100 specific items where moved to | ||
75 | arch/arm/mach-s5pc100. | ||
76 | |||
77 | |||
78 | |||
79 | |||
80 | Port Contributors | ||
81 | ----------------- | ||
82 | |||
83 | Ben Dooks (BJD) | ||
84 | Vincent Sanders | ||
85 | Herbert Potzl | ||
86 | Arnaud Patard (RTP) | ||
87 | Roc Wu | ||
88 | Klaus Fetscher | ||
89 | Dimitry Andric | ||
90 | Shannon Holland | ||
91 | Guillaume Gourat (NexVision) | ||
92 | Christer Weinigel (wingel) (Acer N30) | ||
93 | Lucas Correia Villa Real (S3C2400 port) | ||
94 | |||
95 | |||
96 | Document Author | ||
97 | --------------- | ||
98 | |||
99 | Copyright 2009-2010 Ben Dooks <ben-linux@fluff.org> | ||