| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | OMAP SoC and Inside-Secure HWRNG Module |
| 2 | |
| 3 | Required properties: |
| 4 | |
| 5 | - compatible : Should contain entries for this and backward compatible |
| 6 | RNG versions: |
| 7 | - "ti,omap2-rng" for OMAP2. |
| 8 | - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX. |
| 9 | - "inside-secure,safexcel-eip76" for SoCs with EIP76 IP block |
| 10 | Note that these two versions are incompatible. |
| 11 | - ti,hwmods: Name of the hwmod associated with the RNG module |
| 12 | - reg : Offset and length of the register set for the module |
| 13 | - interrupts : the interrupt number for the RNG module. |
| 14 | Used for "ti,omap4-rng" and "inside-secure,safexcel-eip76" |
| 15 | - clocks: the trng clock source. Only mandatory for the |
| 16 | "inside-secure,safexcel-eip76" compatible, the second clock is |
| 17 | needed for the Armada 7K/8K SoCs |
| 18 | - clock-names: mandatory if there is a second clock, in this case the |
| 19 | name must be "core" for the first clock and "reg" for the second |
| 20 | one |
| 21 | |
| 22 | |
| 23 | Example: |
| 24 | /* AM335x */ |
| 25 | rng: rng@48310000 { |
| 26 | compatible = "ti,omap4-rng"; |
| 27 | ti,hwmods = "rng"; |
| 28 | reg = <0x48310000 0x2000>; |
| 29 | interrupts = <111>; |
| 30 | }; |
| 31 | |
| 32 | /* SafeXcel IP-76 */ |
| 33 | trng: rng@f2760000 { |
| 34 | compatible = "inside-secure,safexcel-eip76"; |
| 35 | reg = <0xf2760000 0x7d>; |
| 36 | interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>; |
| 37 | clocks = <&cpm_syscon0 1 25>; |
| 38 | }; |