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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/arm/Samsung-S3C24XX/Overview.txt
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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1 S3C24XX ARM Linux Overview
2 ==========================
3
4
5
6Introduction
7------------
8
9 The Samsung S3C24XX range of ARM9 System-on-Chip CPUs are supported
10 by the 's3c2410' architecture of ARM Linux. Currently the S3C2410 and
11 the S3C2440 are supported CPUs.
12
13
14Configuration
15-------------
16
17 A generic S3C2410 configuration is provided, and can be used as the
18 default by `make s3c2410_defconfig`. This configuration has support
19 for all the machines, and the commonly used features on them.
20
21 Certain machines may have their own default configurations as well,
22 please check the machine specific documentation.
23
24
25Machines
26--------
27
28 The currently supported machines are as follows:
29
30 Simtec Electronics EB2410ITX (BAST)
31
32 A general purpose development board, see EB2410ITX.txt for further
33 details
34
35 Samsung SMDK2410
36
37 Samsung's own development board, geared for PDA work.
38
39 Samsung/Meritech SMDK2440
40
41 The S3C2440 compatible version of the SMDK2440
42
43 Thorcom VR1000
44
45 Custom embedded board
46
47 HP IPAQ 1940
48
49 Handheld (IPAQ), available in several varieties
50
51 HP iPAQ rx3715
52
53 S3C2440 based IPAQ, with a number of variations depending on
54 features shipped.
55
56 Acer N30
57
58 A S3C2410 based PDA from Acer. There is a Wiki page at
59 http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
60
61
62Adding New Machines
63-------------------
64
65 The archicture has been designed to support as many machines as can
66 be configured for it in one kernel build, and any future additions
67 should keep this in mind before altering items outside of their own
68 machine files.
69
70 Machine definitions should be kept in linux/arch/arm/mach-s3c2410,
71 and there are a number of examples that can be looked at.
72
73 Read the kernel patch submission policies as well as the
74 Documentation/arm directory before submitting patches. The
75 ARM kernel series is managed by Russell King, and has a patch system
76 located at http://www.arm.linux.org.uk/developer/patches/
77 as well as mailing lists that can be found from the same site.
78
79 As a courtesy, please notify <ben-linux@fluff.org> of any new
80 machines or other modifications.
81
82 Any large scale modifications, or new drivers should be discussed
83 on the ARM kernel mailing list (linux-arm-kernel) before being
84 attempted.
85
86
87NAND
88----
89
90 The current kernels now have support for the s3c2410 NAND
91 controller. If there are any problems the latest linux-mtd
92 CVS can be found from http://www.linux-mtd.infradead.org/
93
94
95Serial
96------
97
98 The s3c2410 serial driver provides support for the internal
99 serial ports. These devices appear as /dev/ttySAC0 through 3.
100
101 To create device nodes for these, use the following commands
102
103 mknod ttySAC0 c 204 64
104 mknod ttySAC1 c 204 65
105 mknod ttySAC2 c 204 66
106
107
108GPIO
109----
110
111 The core contains support for manipulating the GPIO, see the
112 documentation in GPIO.txt in the same directory as this file.
113
114
115Clock Management
116----------------
117
118 The core provides the interface defined in the header file
119 include/asm-arm/hardware/clock.h, to allow control over the
120 various clock units
121
122
123Port Contributors
124-----------------
125
126 Ben Dooks (BJD)
127 Vincent Sanders
128 Herbert Potzl
129 Arnaud Patard (RTP)
130 Roc Wu
131 Klaus Fetscher
132 Dimitry Andric
133 Shannon Holland
134 Guillaume Gourat (NexVision)
135 Christer Weinigel (wingel) (Acer N30)
136 Lucas Correia Villa Real (S3C2400 port)
137
138
139Document Changes
140----------------
141
142 05 Sep 2004 - BJD - Added Document Changes section
143 05 Sep 2004 - BJD - Added Klaus Fetscher to list of contributors
144 25 Oct 2004 - BJD - Added Dimitry Andric to list of contributors
145 25 Oct 2004 - BJD - Updated the MTD from the 2.6.9 merge
146 21 Jan 2005 - BJD - Added rx3715, added Shannon to contributors
147 10 Feb 2005 - BJD - Added Guillaume Gourat to contributors
148 02 Mar 2005 - BJD - Added SMDK2440 to list of machines
149 06 Mar 2005 - BJD - Added Christer Weinigel
150 08 Mar 2005 - BJD - Added LCVR to list of people, updated introduction
151 08 Mar 2005 - BJD - Added section on adding machines
152
153Document Author
154---------------
155
156Ben Dooks, (c) 2004-2005 Simtec Electronics