xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/rng/omap_rng.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunOMAP SoC and Inside-Secure HWRNG Module
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun- compatible : Should contain entries for this and backward compatible
6*4882a593Smuzhiyun  RNG versions:
7*4882a593Smuzhiyun  - "ti,omap2-rng" for OMAP2.
8*4882a593Smuzhiyun  - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
9*4882a593Smuzhiyun  - "inside-secure,safexcel-eip76" for SoCs with EIP76 IP block
10*4882a593Smuzhiyun  Note that these two versions are incompatible.
11*4882a593Smuzhiyun- ti,hwmods: Name of the hwmod associated with the RNG module
12*4882a593Smuzhiyun- reg : Offset and length of the register set for the module
13*4882a593Smuzhiyun- interrupts : the interrupt number for the RNG module.
14*4882a593Smuzhiyun		Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76"
15*4882a593Smuzhiyun- clocks: the trng clock source. Only mandatory for the
16*4882a593Smuzhiyun  "inside-secure,safexcel-eip76" compatible, the second clock is
17*4882a593Smuzhiyun  needed for the Armada 7K/8K SoCs
18*4882a593Smuzhiyun- clock-names: mandatory if there is a second clock, in this case the
19*4882a593Smuzhiyun  name must be "core" for the first clock and "reg" for the second
20*4882a593Smuzhiyun  one
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun
23*4882a593SmuzhiyunExample:
24*4882a593Smuzhiyun/* AM335x */
25*4882a593Smuzhiyunrng: rng@48310000 {
26*4882a593Smuzhiyun	compatible = "ti,omap4-rng";
27*4882a593Smuzhiyun	ti,hwmods = "rng";
28*4882a593Smuzhiyun	reg = <0x48310000 0x2000>;
29*4882a593Smuzhiyun	interrupts = <111>;
30*4882a593Smuzhiyun};
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun/* SafeXcel IP-76 */
33*4882a593Smuzhiyuntrng: rng@f2760000 {
34*4882a593Smuzhiyun	compatible = "inside-secure,safexcel-eip76";
35*4882a593Smuzhiyun	reg = <0xf2760000 0x7d>;
36*4882a593Smuzhiyun	interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
37*4882a593Smuzhiyun	clocks = <&cpm_syscon0 1 25>;
38*4882a593Smuzhiyun};
39