The RK3576 SoC contains a RKRNG block that can be used to generate
random numbers using the rockchip_rng driver.

  => rng list
  RNG #0 - rng@2a410000

  => rng
  00000000: 36 dd ab 98 ec fb fe d1 cf 36 b3 e1 9b 3d 00 90  6........6...=..
  00000010: f5 84 de 75 6b 27 48 9e 13 62 12 6c 50 ca 47 1a  ...uk'H..b.lP.G.
  00000020: b3 4d fc 43 c5 b5 2d be 07 27 03 26 bb 69 61 2a  .M.C..-..'.&.ia*
  00000030: 6f 70 01 83 4e ce 91 7a 5a 6c 7c 00 43 87 3e c5  op..N..zZl|.C.>.

Add a rng node to the SoC specific u-boot.dtsi until full support has
landed in a device tree from dts/upstream.

Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
---
 arch/arm/dts/rk3576-u-boot.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/rk3576-u-boot.dtsi b/arch/arm/dts/rk3576-u-boot.dtsi
index be99a48a630f..928960862597 100644
--- a/arch/arm/dts/rk3576-u-boot.dtsi
+++ b/arch/arm/dts/rk3576-u-boot.dtsi
@@ -14,6 +14,13 @@
                compatible = "rockchip,rk3576-dmc";
                bootph-all;
        };
+
+       soc {
+               rng: rng@2a410000 {
+                       compatible = "rockchip,rkrng";
+                       reg = <0x0 0x2a410000 0x0 0x200>;
+               };
+       };
 };
 
 &cru {
-- 
2.49.0

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