[PATCH v3 3/4] arm64: dts: rockchip: Add crypto node to rk356x-base

[Dawid Olesinski]

Add the device tree node for the V2 cryptographic hardware accelerator
on RK356x SoCs (RK3566, RK3568).

The IP block sits in the non-secure peripheral domain. Its three clocks
(core, aclk, hclk) and reset line are accessible directly through the
main non-secure CRU, so no firmware intermediary is required.

The node is disabled by default; board files that wish to use hardware
crypto offload must enable it.

Co-developed-by: Corentin Labbe <clabbe at baylibre.com>
Signed-off-by: Corentin Labbe <clabbe at baylibre.com>
Signed-off-by: Dawid Olesinski <dawidro at gmail.com>
Tested-by: Diederik de Haas <diederik at cknow-tech.com>  # Quartz64-B,
NanoPi R5S, NanoPC-T6 LTS
---
 arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
index 64bdd8b7754b..8b88d6de18c2 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
@@ -1111,6 +1111,17 @@ sdhci: mmc at fe310000 {
 		status = "disabled";
 	};
 
+	crypto: crypto at fe380000 {
+		compatible = "rockchip,rk3568-crypto";
+		reg = <0x0 0xfe380000 0x0 0x2000>;
+		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru CLK_CRYPTO_NS_CORE>, <&cru ACLK_CRYPTO_NS>,
+			 <&cru HCLK_CRYPTO_NS>;
+		clock-names = "core", "aclk", "hclk";
+		resets = <&cru SRST_CRYPTO_NS_CORE>;
+		reset-names = "core";
+	};
+
 	/*
 	 * Testing showed that the HWRNG found in RK3566 produces unacceptably
 	 * low quality of random data, so the HWRNG isn't enabled for all RK356x
-- 
2.47.3