1 DT compatible string versioning for SiFive ope
2
3 This document describes the version specificat
4 strings for open-source SiFive IP blocks. HDL
5 can be found in this public repository:
6
7 https://github.com/sifive/sifive-blocks
8
9 IP block-specific DT compatible strings are co
10 in the form "sifive,<ip-block-name><integer ve
11
12 An example is "sifive,uart0" from:
13
14 https://github.com/sifive/sifive-blocks/blob/v
15
16 Until these IP blocks (or IP integration) supp
17 auto-discovery, the maintainers of these IP bl
18 the suffixed number in the compatible string w
19 interface to these IP blocks changes, or when
20 underlying IP blocks changes in a way that sof
21
22 Driver developers can use compatible string "m
23 "sifive,uart0" to indicate that their driver i
24 register interface and functionality associate
25 upstream sifive-blocks commits. It is expecte
26 match on these IP block-specific compatible st
27
28 DT data authors, when writing data for a parti
29 continue to specify an SoC-specific compatible
30 "sifive,fu540-c000-uart". This way, if SoC-sp
31 integration-specific bug fixes or workarounds
32 or other system software can match on this str
33 IP block-specific compatible string (such as "
34 then be specified as a subsequent value.
35
36 An example of this style:
37
38 compatible = "sifive,fu540-c000-uart", "si
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