openwrt/target/linux/rockchip/patches-6.6/301-arm64-dts-rockchip-add-DT-entry-for-RNG-to-RK3568.patch

From 756e7d3251ad8f6c72e7bf4c476537a89f673e38 Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Sun, 21 Jul 2024 01:48:38 +0100
Subject: [PATCH 3/3] arm64: dts: rockchip: add DT entry for RNG to RK356x

Enable the just added Rockchip RNG driver for RK356x SoCs.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 arch/arm64/boot/dts/rockchip/rk3568.dtsi |  7 +++++++
 arch/arm64/boot/dts/rockchip/rk356x.dtsi | 10 ++++++++++
 2 files changed, 17 insertions(+)

--- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
@@ -257,6 +257,13 @@
 	};
 };
 
+&rng {
+	rockchip,sample-count = <1000>;
+	quality = <900>;
+
+	status = "okay";
+};
+
 &usb_host0_xhci {
 	phys = <&usb2phy0_otg>, <&combphy0 PHY_TYPE_USB3>;
 	phy-names = "usb2-phy", "usb3-phy";
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -1106,6 +1106,16 @@
 		status = "disabled";
 	};
 
+	rng: rng@fe388000 {
+		compatible = "rockchip,rk3568-rng";
+		reg = <0x0 0xfe388000 0x0 0x4000>;
+		clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>;
+		clock-names = "core", "ahb";
+		resets = <&cru SRST_TRNG_NS>;
+		reset-names = "reset";
+		status = "disabled";
+	};
+
 	i2s0_8ch: i2s@fe400000 {
 		compatible = "rockchip,rk3568-i2s-tdm";
 		reg = <0x0 0xfe400000 0x0 0x1000>;