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-rw-r--r-- | Documentation/powerpc/dts-bindings/ecm.txt | 64 |
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1 | ===================================================================== | ||
2 | E500 LAW & Coherency Module Device Tree Binding | ||
3 | Copyright (C) 2009 Freescale Semiconductor Inc. | ||
4 | ===================================================================== | ||
5 | |||
6 | Local Access Window (LAW) Node | ||
7 | |||
8 | The LAW node represents the region of CCSR space where local access | ||
9 | windows are configured. For ECM based devices this is the first 4k | ||
10 | of CCSR space that includes CCSRBAR, ALTCBAR, ALTCAR, BPTR, and some | ||
11 | number of local access windows as specified by fsl,num-laws. | ||
12 | |||
13 | PROPERTIES | ||
14 | |||
15 | - compatible | ||
16 | Usage: required | ||
17 | Value type: <string> | ||
18 | Definition: Must include "fsl,ecm-law" | ||
19 | |||
20 | - reg | ||
21 | Usage: required | ||
22 | Value type: <prop-encoded-array> | ||
23 | Definition: A standard property. The value specifies the | ||
24 | physical address offset and length of the CCSR space | ||
25 | registers. | ||
26 | |||
27 | - fsl,num-laws | ||
28 | Usage: required | ||
29 | Value type: <u32> | ||
30 | Definition: The value specifies the number of local access | ||
31 | windows for this device. | ||
32 | |||
33 | ===================================================================== | ||
34 | |||
35 | E500 Coherency Module Node | ||
36 | |||
37 | The E500 LAW node represents the region of CCSR space where ECM config | ||
38 | and error reporting registers exist, this is the second 4k (0x1000) | ||
39 | of CCSR space. | ||
40 | |||
41 | PROPERTIES | ||
42 | |||
43 | - compatible | ||
44 | Usage: required | ||
45 | Value type: <string> | ||
46 | Definition: Must include "fsl,CHIP-ecm", "fsl,ecm" where | ||
47 | CHIP is the processor (mpc8572, mpc8544, etc.) | ||
48 | |||
49 | - reg | ||
50 | Usage: required | ||
51 | Value type: <prop-encoded-array> | ||
52 | Definition: A standard property. The value specifies the | ||
53 | physical address offset and length of the CCSR space | ||
54 | registers. | ||
55 | |||
56 | - interrupts | ||
57 | Usage: required | ||
58 | Value type: <prop-encoded-array> | ||
59 | |||
60 | - interrupt-parent | ||
61 | Usage: required | ||
62 | Value type: <phandle> | ||
63 | |||
64 | ===================================================================== | ||