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[v1,2/2] meson-a1: dts: add ao secure node

Message ID 20230621132953.83343-2-avromanov@sberdevices.ru
State New
Delegated to: Neil Armstrong
Headers show
Series [v1,1/2] meson-a1: dts: add hw rng node | expand

Commit Message

Alexey Romanov June 21, 2023, 1:29 p.m. UTC
ao-secure node can be used to get information about the board,
so, for example, using show_board_info() we can get following
information for board with Meson A1 SoC:

SoC: Amlogic Meson A1 (A113L) Revision 2c:a (1:a)

Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
---
 arch/arm/dts/meson-a1.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Alexey Romanov Sept. 15, 2023, 9:03 a.m. UTC | #1
Hi Neil, 

On Wed, Jun 21, 2023 at 04:29:53PM +0300, Alexey Romanov wrote:
> ao-secure node can be used to get information about the board,
> so, for example, using show_board_info() we can get following
> information for board with Meson A1 SoC:
> 
> SoC: Amlogic Meson A1 (A113L) Revision 2c:a (1:a)
> 
> Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
> ---
>  arch/arm/dts/meson-a1.dtsi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm/dts/meson-a1.dtsi b/arch/arm/dts/meson-a1.dtsi
> index 1f57c137384..149cc0e23a3 100644
> --- a/arch/arm/dts/meson-a1.dtsi
> +++ b/arch/arm/dts/meson-a1.dtsi
> @@ -145,6 +145,12 @@
>  				compatible = "amlogic,meson-rng";
>  				reg = <0x0 0x5118 0x0 0x4>;
>  			};
> +
> +			sec_AO: ao-secure@5a20 {
> +				compatible = "amlogic,meson-gx-ao-secure", "syscon";
> +				reg = <0x0 0x5a20 0x0 0x140>;
> +				amlogic,has-chip-id;
> +			};
>  		};
>  
>  		gic: interrupt-controller@ff901000 {
> -- 
> 2.38.1
>

Applied into v6.7/arm64-dt here:

https://lore.kernel.org/all/20230823213630.12936-14-ddrokosov@sberdevices.ru/
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Patch

diff --git a/arch/arm/dts/meson-a1.dtsi b/arch/arm/dts/meson-a1.dtsi
index 1f57c137384..149cc0e23a3 100644
--- a/arch/arm/dts/meson-a1.dtsi
+++ b/arch/arm/dts/meson-a1.dtsi
@@ -145,6 +145,12 @@ 
 				compatible = "amlogic,meson-rng";
 				reg = <0x0 0x5118 0x0 0x4>;
 			};
+
+			sec_AO: ao-secure@5a20 {
+				compatible = "amlogic,meson-gx-ao-secure", "syscon";
+				reg = <0x0 0x5a20 0x0 0x140>;
+				amlogic,has-chip-id;
+			};
 		};
 
 		gic: interrupt-controller@ff901000 {