diff mbox series

[v3,7/7] arm64: dts: qcom: sc8280xp: add rng device tree node

Message ID 20221220192854.521647-8-bmasney@redhat.com
State New
Headers
Series dts: qcom: sc8280xp: add i2c, spi, and rng nodes |

Commit Message

Brian Masney Dec. 20, 2022, 7:28 p.m. UTC 
  Add the necessary device tree node for qcom,prng-ee so we can use the
hardware random number generator. This functionality was tested on a
SA8540p automotive development board using kcapi-rng from libkcapi.

Signed-off-by: Brian Masney <bmasney@redhat.com>
---
Changes from v2 to v3:
- Correctly sort node by MMIO address

Patch introduced in v2

 arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Konrad Dybcio Dec. 21, 2022, 8:44 p.m. UTC | #1 
On 20.12.2022 20:28, Brian Masney wrote:
> Add the necessary device tree node for qcom,prng-ee so we can use the
> hardware random number generator. This functionality was tested on a
> SA8540p automotive development board using kcapi-rng from libkcapi.
> 
> Signed-off-by: Brian Masney <bmasney@redhat.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad
> Changes from v2 to v3:
> - Correctly sort node by MMIO address
> 
> Patch introduced in v2
> 
>  arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> index 4591d411f5fb..6c2cae83dac6 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> @@ -1602,6 +1602,13 @@ spi15: spi@a9c000 {
>  			};
>  		};
>  
> +		rng: rng@10d3000 {
> +			compatible = "qcom,prng-ee";
> +			reg = <0 0x010d3000 0 0x1000>;
> +			clocks = <&rpmhcc RPMH_HWKM_CLK>;
> +			clock-names = "core";
> +		};
> +
>  		pcie4: pcie@1c00000 {
>  			device_type = "pci";
>  			compatible = "qcom,pcie-sc8280xp";
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index 4591d411f5fb..6c2cae83dac6 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -1602,6 +1602,13 @@  spi15: spi@a9c000 {
 			};
 		};
 
+		rng: rng@10d3000 {
+			compatible = "qcom,prng-ee";
+			reg = <0 0x010d3000 0 0x1000>;
+			clocks = <&rpmhcc RPMH_HWKM_CLK>;
+			clock-names = "core";
+		};
+
 		pcie4: pcie@1c00000 {
 			device_type = "pci";
 			compatible = "qcom,pcie-sc8280xp";