diff options
author | Paul Mundt <lethal@linux-sh.org> | 2009-09-16 00:48:32 -0400 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2009-09-16 00:48:32 -0400 |
commit | ea88023b3491a384575ebcd5e8a449e841a28a24 (patch) | |
tree | f46e3d8302e44dc55ce31823501e100472d29683 /Documentation/arm | |
parent | a6f15ade97989d414e9bf33874c9d5d1f39808ec (diff) | |
parent | 0cb583fd2862f19ea88b02eb307d11c09e51e2f8 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/sh/kernel/vmlinux.lds.S
Diffstat (limited to 'Documentation/arm')
-rw-r--r-- | Documentation/arm/SA1100/ADSBitsy | 2 | ||||
-rw-r--r-- | Documentation/arm/SA1100/Assabet | 2 | ||||
-rw-r--r-- | Documentation/arm/SA1100/Brutus | 2 | ||||
-rw-r--r-- | Documentation/arm/SA1100/GraphicsClient | 4 | ||||
-rw-r--r-- | Documentation/arm/SA1100/GraphicsMaster | 4 | ||||
-rw-r--r-- | Documentation/arm/SA1100/Victor | 2 | ||||
-rw-r--r-- | Documentation/arm/Samsung-S3C24XX/CPUfreq.txt | 75 |
7 files changed, 83 insertions, 8 deletions
diff --git a/Documentation/arm/SA1100/ADSBitsy b/Documentation/arm/SA1100/ADSBitsy index ab47c3833908..7197a9e958ee 100644 --- a/Documentation/arm/SA1100/ADSBitsy +++ b/Documentation/arm/SA1100/ADSBitsy | |||
@@ -40,4 +40,4 @@ Notes: | |||
40 | mode, the timing is off so the image is corrupted. This will be | 40 | mode, the timing is off so the image is corrupted. This will be |
41 | fixed soon. | 41 | fixed soon. |
42 | 42 | ||
43 | Any contribution can be sent to nico@cam.org and will be greatly welcome! | 43 | Any contribution can be sent to nico@fluxnic.net and will be greatly welcome! |
diff --git a/Documentation/arm/SA1100/Assabet b/Documentation/arm/SA1100/Assabet index 78bc1c1b04e5..91f7ce7ba426 100644 --- a/Documentation/arm/SA1100/Assabet +++ b/Documentation/arm/SA1100/Assabet | |||
@@ -240,7 +240,7 @@ Then, rebooting the Assabet is just a matter of waiting for the login prompt. | |||
240 | 240 | ||
241 | 241 | ||
242 | Nicolas Pitre | 242 | Nicolas Pitre |
243 | nico@cam.org | 243 | nico@fluxnic.net |
244 | June 12, 2001 | 244 | June 12, 2001 |
245 | 245 | ||
246 | 246 | ||
diff --git a/Documentation/arm/SA1100/Brutus b/Documentation/arm/SA1100/Brutus index 2254c8f0b326..b1cfd405dccc 100644 --- a/Documentation/arm/SA1100/Brutus +++ b/Documentation/arm/SA1100/Brutus | |||
@@ -60,7 +60,7 @@ little modifications. | |||
60 | 60 | ||
61 | Any contribution is welcome. | 61 | Any contribution is welcome. |
62 | 62 | ||
63 | Please send patches to nico@cam.org | 63 | Please send patches to nico@fluxnic.net |
64 | 64 | ||
65 | Have Fun ! | 65 | Have Fun ! |
66 | 66 | ||
diff --git a/Documentation/arm/SA1100/GraphicsClient b/Documentation/arm/SA1100/GraphicsClient index 8fa7e8027ff1..6c9c4f5a36e1 100644 --- a/Documentation/arm/SA1100/GraphicsClient +++ b/Documentation/arm/SA1100/GraphicsClient | |||
@@ -4,7 +4,7 @@ For more details, contact Applied Data Systems or see | |||
4 | http://www.applieddata.net/products.html | 4 | http://www.applieddata.net/products.html |
5 | 5 | ||
6 | The original Linux support for this product has been provided by | 6 | The original Linux support for this product has been provided by |
7 | Nicolas Pitre <nico@cam.org>. Continued development work by | 7 | Nicolas Pitre <nico@fluxnic.net>. Continued development work by |
8 | Woojung Huh <whuh@applieddata.net> | 8 | Woojung Huh <whuh@applieddata.net> |
9 | 9 | ||
10 | It's currently possible to mount a root filesystem via NFS providing a | 10 | It's currently possible to mount a root filesystem via NFS providing a |
@@ -94,5 +94,5 @@ Notes: | |||
94 | mode, the timing is off so the image is corrupted. This will be | 94 | mode, the timing is off so the image is corrupted. This will be |
95 | fixed soon. | 95 | fixed soon. |
96 | 96 | ||
97 | Any contribution can be sent to nico@cam.org and will be greatly welcome! | 97 | Any contribution can be sent to nico@fluxnic.net and will be greatly welcome! |
98 | 98 | ||
diff --git a/Documentation/arm/SA1100/GraphicsMaster b/Documentation/arm/SA1100/GraphicsMaster index dd28745ac521..ee7c6595f23f 100644 --- a/Documentation/arm/SA1100/GraphicsMaster +++ b/Documentation/arm/SA1100/GraphicsMaster | |||
@@ -4,7 +4,7 @@ For more details, contact Applied Data Systems or see | |||
4 | http://www.applieddata.net/products.html | 4 | http://www.applieddata.net/products.html |
5 | 5 | ||
6 | The original Linux support for this product has been provided by | 6 | The original Linux support for this product has been provided by |
7 | Nicolas Pitre <nico@cam.org>. Continued development work by | 7 | Nicolas Pitre <nico@fluxnic.net>. Continued development work by |
8 | Woojung Huh <whuh@applieddata.net> | 8 | Woojung Huh <whuh@applieddata.net> |
9 | 9 | ||
10 | Use 'make graphicsmaster_config' before any 'make config'. | 10 | Use 'make graphicsmaster_config' before any 'make config'. |
@@ -50,4 +50,4 @@ Notes: | |||
50 | mode, the timing is off so the image is corrupted. This will be | 50 | mode, the timing is off so the image is corrupted. This will be |
51 | fixed soon. | 51 | fixed soon. |
52 | 52 | ||
53 | Any contribution can be sent to nico@cam.org and will be greatly welcome! | 53 | Any contribution can be sent to nico@fluxnic.net and will be greatly welcome! |
diff --git a/Documentation/arm/SA1100/Victor b/Documentation/arm/SA1100/Victor index 01e81fc49461..f938a29fdc20 100644 --- a/Documentation/arm/SA1100/Victor +++ b/Documentation/arm/SA1100/Victor | |||
@@ -9,7 +9,7 @@ Of course Victor is using Linux as its main operating system. | |||
9 | The Victor implementation for Linux is maintained by Nicolas Pitre: | 9 | The Victor implementation for Linux is maintained by Nicolas Pitre: |
10 | 10 | ||
11 | nico@visuaide.com | 11 | nico@visuaide.com |
12 | nico@cam.org | 12 | nico@fluxnic.net |
13 | 13 | ||
14 | For any comments, please feel free to contact me through the above | 14 | For any comments, please feel free to contact me through the above |
15 | addresses. | 15 | addresses. |
diff --git a/Documentation/arm/Samsung-S3C24XX/CPUfreq.txt b/Documentation/arm/Samsung-S3C24XX/CPUfreq.txt new file mode 100644 index 000000000000..76b3a11e90be --- /dev/null +++ b/Documentation/arm/Samsung-S3C24XX/CPUfreq.txt | |||
@@ -0,0 +1,75 @@ | |||
1 | S3C24XX CPUfreq support | ||
2 | ======================= | ||
3 | |||
4 | Introduction | ||
5 | ------------ | ||
6 | |||
7 | The S3C24XX series support a number of power saving systems, such as | ||
8 | the ability to change the core, memory and peripheral operating | ||
9 | frequencies. The core control is exported via the CPUFreq driver | ||
10 | which has a number of different manual or automatic controls over the | ||
11 | rate the core is running at. | ||
12 | |||
13 | There are two forms of the driver depending on the specific CPU and | ||
14 | how the clocks are arranged. The first implementation used as single | ||
15 | PLL to feed the ARM, memory and peripherals via a series of dividers | ||
16 | and muxes and this is the implementation that is documented here. A | ||
17 | newer version where there is a seperate PLL and clock divider for the | ||
18 | ARM core is available as a seperate driver. | ||
19 | |||
20 | |||
21 | Layout | ||
22 | ------ | ||
23 | |||
24 | The code core manages the CPU specific drivers, any data that they | ||
25 | need to register and the interface to the generic drivers/cpufreq | ||
26 | system. Each CPU registers a driver to control the PLL, clock dividers | ||
27 | and anything else associated with it. Any board that wants to use this | ||
28 | framework needs to supply at least basic details of what is required. | ||
29 | |||
30 | The core registers with drivers/cpufreq at init time if all the data | ||
31 | necessary has been supplied. | ||
32 | |||
33 | |||
34 | CPU support | ||
35 | ----------- | ||
36 | |||
37 | The support for each CPU depends on the facilities provided by the | ||
38 | SoC and the driver as each device has different PLL and clock chains | ||
39 | associated with it. | ||
40 | |||
41 | |||
42 | Slow Mode | ||
43 | --------- | ||
44 | |||
45 | The SLOW mode where the PLL is turned off altogether and the | ||
46 | system is fed by the external crystal input is currently not | ||
47 | supported. | ||
48 | |||
49 | |||
50 | sysfs | ||
51 | ----- | ||
52 | |||
53 | The core code exports extra information via sysfs in the directory | ||
54 | devices/system/cpu/cpu0/arch-freq. | ||
55 | |||
56 | |||
57 | Board Support | ||
58 | ------------- | ||
59 | |||
60 | Each board that wants to use the cpufreq code must register some basic | ||
61 | information with the core driver to provide information about what the | ||
62 | board requires and any restrictions being placed on it. | ||
63 | |||
64 | The board needs to supply information about whether it needs the IO bank | ||
65 | timings changing, any maximum frequency limits and information about the | ||
66 | SDRAM refresh rate. | ||
67 | |||
68 | |||
69 | |||
70 | |||
71 | Document Author | ||
72 | --------------- | ||
73 | |||
74 | Ben Dooks, Copyright 2009 Simtec Electronics | ||
75 | Licensed under GPLv2 | ||