[PATCH v2 0/2] Meson A1: add HW RNG and AO Secure nodes

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Alexey Romanov

10 Oct 2023 10 Oct '23

12:06 p.m.

Hello!

This patchest adds HW RNG and AO Secure definition in device tree for Amlogic A1-series.

V2:

- Rebased over latest amlogic U-Boot branch.

Alexey Romanov (2): meson-a1: dts: add hw rng node meson-a1: dts: add ao secure node

arch/arm/dts/meson-a1.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+)

-- 2.25.1

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Alexey Romanov

10 Oct 10 Oct

12:06 p.m.

New subject: [PATCH v2 1/2] meson-a1: dts: add hw rng node

Add support for hardware random number generator of Amlogic Meson SoCs.

Signed-off-by: Alexey Romanov avromanov@salutedevices.com --- arch/arm/dts/meson-a1.dtsi | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/arch/arm/dts/meson-a1.dtsi b/arch/arm/dts/meson-a1.dtsi index 6509329b85..e6e72d4004 100644 --- a/arch/arm/dts/meson-a1.dtsi +++ b/arch/arm/dts/meson-a1.dtsi @@ -124,6 +124,11 @@ clock-names = "xtal", "pclk", "baud"; status = "disabled"; }; + + hwrng: rng@5118 { + compatible = "amlogic,meson-rng"; + reg = <0x0 0x5118 0x0 0x4>; + }; };

gic: interrupt-controller@ff901000 {

-- 2.25.1

Alexey Romanov

12:06 p.m.

New subject: [PATCH v2 2/2] meson-a1: dts: add ao secure node

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@salutedevices.com --- 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 e6e72d4004..e3a42c5b24 100644 --- a/arch/arm/dts/meson-a1.dtsi +++ b/arch/arm/dts/meson-a1.dtsi @@ -129,6 +129,12 @@ 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 {

-- 2.25.1