[PATCH v3] arm64: dts: ti: k3-j721s2-main: Enable crypto accelerator

[Jayesh Choudhary]

Add the node for SA2UL for supporting hardware crypto algorithms,
including SHA1, SHA256, SHA512, AES, 3DES and AEAD suites.
Add rng node for hardware random number generator.

Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx>
Acked-by: Matt Ranostay <mranostay@xxxxxx>
Acked-by: Andrew Davis <afd@xxxxxx>
---

Changes have been tested on local j721s2-evm board. Tcrypt tests
and crypto self-tests were passing.

Changelog v2 -> v3:
- remove the clock property from rng node
  (<https://lore.kernel.org/all/20220901171041.32056-1-afd@xxxxxx/>)

Changelog v1 -> v2:
- change the TI_SCI flag from shared to exclusive as OP-TEE uses MCU
  domain SA2UL instance and not the main domain instance
- remove the 'dma-coherent' property (Binding changes are merged)
- add the rng node which can be used as well for hwrng along with
  optee-rng

v2 patch: https://lore.kernel.org/all/20221031135416.350010-1-j-choudhary@xxxxxx/  

Testing log: https://gist.github.com/Jayesh2000/26acf0e63f7edcd4b267122e4c73b9a8

 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index d1ec26110376..2e0ba2262e77 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -72,6 +72,25 @@ main_pmx0: pinctrl@11c000 {
 		pinctrl-single,function-mask = <0xffffffff>;
 	};
 
+	main_crypto: crypto@4e00000 {
+		compatible = "ti,j721e-sa2ul";
+		reg = <0x00 0x4e00000 0x00 0x1200>;
+		power-domains = <&k3_pds 297 TI_SCI_PD_EXCLUSIVE>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges = <0x00 0x04e00000 0x00 0x04e00000 0x00 0x30000>;
+
+		dmas = <&main_udmap 0xca40>, <&main_udmap 0x4a40>,
+				<&main_udmap 0x4a41>;
+		dma-names = "tx", "rx1", "rx2";
+
+		rng: rng@4e10000 {
+			compatible = "inside-secure,safexcel-eip76";
+			reg = <0x0 0x4e10000 0x0 0x7d>;
+			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+		};
+	};
+
 	main_uart0: serial@2800000 {
 		compatible = "ti,j721e-uart", "ti,am654-uart";
 		reg = <0x00 0x02800000 0x00 0x200>;
-- 
2.25.1