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author | Joel Stanley <joel@jms.id.au> | 2020-09-21 18:46:42 +0930 |
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committer | Joel Stanley <joel@jms.id.au> | 2020-09-25 10:14:04 +0930 |
commit | 7c1f6281549bda39ab32f65eb93bfcf2aa75fe94 (patch) | |
tree | 321b5ad787ab37d1ee9158a192c15fead40b996c /Documentation/devicetree/bindings/mfd/aspeed-scu.txt | |
parent | soc: aspeed: Improve kconfig (diff) | |
download | linux-dev-7c1f6281549bda39ab32f65eb93bfcf2aa75fe94.tar.xz linux-dev-7c1f6281549bda39ab32f65eb93bfcf2aa75fe94.zip |
dt-bindings: aspeed: Add silicon id node to SCU
Different ASPEED families have various unique hardware silicon
identifiers within the SoC.
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20200921091644.133107-2-joel@jms.id.au
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'Documentation/devicetree/bindings/mfd/aspeed-scu.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mfd/aspeed-scu.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt index 4d92c0bb6687..857ee33f7329 100644 --- a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt +++ b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt @@ -20,3 +20,29 @@ syscon: syscon@1e6e2000 { #clock-cells = <1>; #reset-cells = <1>; }; + +Silicon ID +----------------- + +Families have unique hardware silicon identifiers within the SoC. + +Required properties: + + - compatible: "aspeed,silicon-id" or: + "aspeed,ast2400-silicon-id" or + "aspeed,ast2500-silicon-id" or + "aspeed,ast2600-silicon-id" + + - reg: offset and length of the silicon id information + optionally, a second offset and length describes the unique chip id + + The reg should be the unique silicon id register, and + not backwards compatible one in eg. the 2600. + +Example: + + +silicon-id@7c { + compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id"; + reg = <0x7c 0x4 0x150 0x8>; +}; |