linux-kernel - [PATCH] ARM64: meson-axg: enable hardware rng

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Date:   Mon, 18 Dec 2017 12:35:46 +0100
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>
Cc:     Jerome Brunet <jbrunet@...libre.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] ARM64: meson-axg: enable hardware rng

Enable the hardware random generator

Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
---
Hi Kevin,

This patch depends on the changes adding the ethernet controller [0],
for including the axg clock binding header.

Cheers
Jerome

[0]: https://lkml.kernel.org/r/20171216035527.96952-2-yixun.lan@amlogic.com


 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index dea1bc31b4de..c741fc16486f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -212,6 +212,13 @@
 			#size-cells = <2>;
 			ranges = <0x0 0x0 0x0 0xff634000 0x0 0x2000>;
 
+			hwrng: rng {
+				compatible = "amlogic,meson-rng";
+				reg = <0x0 0x18 0x0 0x4>;
+				clocks = <&clkc CLKID_RNG0>;
+				clock-names = "core";
+			};
+
 			pinctrl_periphs: pinctrl@480 {
 				compatible = "amlogic,meson-axg-periphs-pinctrl";
 				#address-cells = <2>;
-- 
2.14.3