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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-05-29 11:29:30 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-06-24 16:16:55 +0200 |
| commit | 2f6b62e80a9662becd22599ae553de397efacc85 (patch) | |
| tree | 10f72c552f6da522c1c5a8dcc2e9c805cac0e4c1 /Documentation/devicetree/bindings/fuse | |
| parent | 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (diff) | |
| download | lwn-2f6b62e80a9662becd22599ae553de397efacc85.tar.gz lwn-2f6b62e80a9662becd22599ae553de397efacc85.zip | |
dt-bindings: fuse: Document R-Car E-FUSE / PFC
Document support for E-FUSE non-volatile memory accessible through PFC
on R-Car V3U and S4-8.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/03e43e97941df238ef1a618852aecd7be68adbb0.1716974502.git.geert+renesas@glider.be
Diffstat (limited to 'Documentation/devicetree/bindings/fuse')
| -rw-r--r-- | Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml b/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml new file mode 100644 index 000000000000..d7e289244e72 --- /dev/null +++ b/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fuse/renesas,rcar-efuse.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: R-Car E-FUSE connected to PFC + +maintainers: + - Geert Uytterhoeven <geert+renesas@glider.be> + +description: + The E-FUSE is a type of non-volatile memory, which is accessible through the + Pin Function Controller (PFC) on some R-Car Gen4 SoCs. + +properties: + compatible: + enum: + - renesas,r8a779a0-efuse # R-Car V3U + - renesas,r8a779f0-efuse # R-Car S4-8 + + reg: + maxItems: 1 + description: PFC System Group Fuse Control and Monitor register block + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - power-domains + - resets + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/r8a779a0-cpg-mssr.h> + #include <dt-bindings/power/r8a779a0-sysc.h> + + fuse: fuse@e6078800 { + compatible = "renesas,r8a779a0-efuse"; + reg = <0xe6078800 0x100>; + clocks = <&cpg CPG_MOD 916>; + power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>; + resets = <&cpg 916>; + }; |