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Diffstat (limited to 'Documentation/devicetree/bindings/rng/omap_rng.txt')
-rw-r--r-- | Documentation/devicetree/bindings/rng/omap_rng.txt | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rng/omap_rng.txt b/Documentation/devicetree/bindings/rng/omap_rng.txt new file mode 100644 index 000000000..ea434ce50 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/omap_rng.txt @@ -0,0 +1,38 @@ +OMAP SoC and Inside-Secure HWRNG Module + +Required properties: + +- compatible : Should contain entries for this and backward compatible + RNG versions: + - "ti,omap2-rng" for OMAP2. + - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX. + - "inside-secure,safexcel-eip76" for SoCs with EIP76 IP block + Note that these two versions are incompatible. +- ti,hwmods: Name of the hwmod associated with the RNG module +- reg : Offset and length of the register set for the module +- interrupts : the interrupt number for the RNG module. + Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76" +- clocks: the trng clock source. Only mandatory for the + "inside-secure,safexcel-eip76" compatible, the second clock is + needed for the Armada 7K/8K SoCs +- clock-names: mandatory if there is a second clock, in this case the + name must be "core" for the first clock and "reg" for the second + one + + +Example: +/* AM335x */ +rng: rng@48310000 { + compatible = "ti,omap4-rng"; + ti,hwmods = "rng"; + reg = <0x48310000 0x2000>; + interrupts = <111>; +}; + +/* SafeXcel IP-76 */ +trng: rng@f2760000 { + compatible = "inside-secure,safexcel-eip76"; + reg = <0xf2760000 0x7d>; + interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpm_syscon0 1 25>; +}; |