* [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG
@ 2025-09-24 9:01 Peter Robinson
2025-09-24 10:47 ` Stefan Wahren
0 siblings, 1 reply; 4+ messages in thread
From: Peter Robinson @ 2025-09-24 9:01 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Florian Fainelli,
Broadcom internal kernel review list, Dave Stevenson,
Stefan Wahren, Phil Elwell, Andrea della Porta, devicetree,
linux-rpi-kernel, linux-arm-kernel
Cc: Peter Robinson
The RNG is the same IP as in the bcm2711 so add the
device tree block to enable the device.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
---
arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
index 4cd51d80d40d0..6976a88c262f4 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
@@ -226,6 +226,12 @@ system_timer: timer@7c003000 {
clock-frequency = <1000000>;
};
+ random: rng@7d208000 {
+ compatible = "brcm,bcm2711-rng200";
+ reg = <0x7d208000 0x28>;
+ status = "okay";
+ };
+
mailbox: mailbox@7c013880 {
compatible = "brcm,bcm2835-mbox";
reg = <0x7c013880 0x40>;
--
2.51.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG
2025-09-24 9:01 [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG Peter Robinson
@ 2025-09-24 10:47 ` Stefan Wahren
2025-09-24 10:53 ` Peter Robinson
0 siblings, 1 reply; 4+ messages in thread
From: Stefan Wahren @ 2025-09-24 10:47 UTC (permalink / raw)
To: Peter Robinson, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Florian Fainelli, Broadcom internal kernel review list,
Dave Stevenson, Phil Elwell, Andrea della Porta, devicetree,
linux-rpi-kernel, linux-arm-kernel
Hi Peter,
Am 24.09.25 um 11:01 schrieb Peter Robinson:
> The RNG is the same IP as in the bcm2711 so add the
> device tree block to enable the device.
>
> Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
> ---
> arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> index 4cd51d80d40d0..6976a88c262f4 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> @@ -226,6 +226,12 @@ system_timer: timer@7c003000 {
> clock-frequency = <1000000>;
> };
>
> + random: rng@7d208000 {
> + compatible = "brcm,bcm2711-rng200";
> + reg = <0x7d208000 0x28>;
> + status = "okay";
> + };
thank you for the patch. I know the order is already messed up, but
could you please try to add it after uart10?
> +
> mailbox: mailbox@7c013880 {
> compatible = "brcm,bcm2835-mbox";
> reg = <0x7c013880 0x40>;
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG
2025-09-24 10:47 ` Stefan Wahren
@ 2025-09-24 10:53 ` Peter Robinson
2025-09-24 10:58 ` Stefan Wahren
0 siblings, 1 reply; 4+ messages in thread
From: Peter Robinson @ 2025-09-24 10:53 UTC (permalink / raw)
To: Stefan Wahren
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Florian Fainelli,
Broadcom internal kernel review list, Dave Stevenson, Phil Elwell,
Andrea della Porta, devicetree, linux-rpi-kernel,
linux-arm-kernel
On Wed, 24 Sept 2025 at 11:48, Stefan Wahren <wahrenst@gmx.net> wrote:
>
> Hi Peter,
>
> Am 24.09.25 um 11:01 schrieb Peter Robinson:
> > The RNG is the same IP as in the bcm2711 so add the
> > device tree block to enable the device.
> >
> > Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
> > ---
> > arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 6 ++++++
> > 1 file changed, 6 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> > index 4cd51d80d40d0..6976a88c262f4 100644
> > --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> > +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
> > @@ -226,6 +226,12 @@ system_timer: timer@7c003000 {
> > clock-frequency = <1000000>;
> > };
> >
> > + random: rng@7d208000 {
> > + compatible = "brcm,bcm2711-rng200";
> > + reg = <0x7d208000 0x28>;
> > + status = "okay";
> > + };
> thank you for the patch. I know the order is already messed up, but
> could you please try to add it after uart10?
Sure, can you let me know the preferred ordering so I can understand
what we're aiming for overall?
> > +
> > mailbox: mailbox@7c013880 {
> > compatible = "brcm,bcm2835-mbox";
> > reg = <0x7c013880 0x40>;
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG
2025-09-24 10:53 ` Peter Robinson
@ 2025-09-24 10:58 ` Stefan Wahren
0 siblings, 0 replies; 4+ messages in thread
From: Stefan Wahren @ 2025-09-24 10:58 UTC (permalink / raw)
To: Peter Robinson
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Florian Fainelli,
Broadcom internal kernel review list, Dave Stevenson, Phil Elwell,
Andrea della Porta, devicetree, linux-rpi-kernel,
linux-arm-kernel
Hi Peter,
Am 24.09.25 um 12:53 schrieb Peter Robinson:
> On Wed, 24 Sept 2025 at 11:48, Stefan Wahren <wahrenst@gmx.net> wrote:
>> Hi Peter,
>>
>> Am 24.09.25 um 11:01 schrieb Peter Robinson:
>>> The RNG is the same IP as in the bcm2711 so add the
>>> device tree block to enable the device.
>>>
>>> Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
>>> ---
>>> arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 6 ++++++
>>> 1 file changed, 6 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
>>> index 4cd51d80d40d0..6976a88c262f4 100644
>>> --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
>>> +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi
>>> @@ -226,6 +226,12 @@ system_timer: timer@7c003000 {
>>> clock-frequency = <1000000>;
>>> };
>>>
>>> + random: rng@7d208000 {
>>> + compatible = "brcm,bcm2711-rng200";
>>> + reg = <0x7d208000 0x28>;
>>> + status = "okay";
>>> + };
>> thank you for the patch. I know the order is already messed up, but
>> could you please try to add it after uart10?
> Sure, can you let me know the preferred ordering so I can understand
> what we're aiming for overall?
Sure, all nodes with an unit address should be ordered ascending by unit
address.
https://docs.kernel.org/devicetree/bindings/dts-coding-style.html
>
>>> +
>>> mailbox: mailbox@7c013880 {
>>> compatible = "brcm,bcm2835-mbox";
>>> reg = <0x7c013880 0x40>;
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-09-24 9:01 [PATCH] arm64: dts: broadcom: bcm2712: Enable RNG Peter Robinson
2025-09-24 10:47 ` Stefan Wahren
2025-09-24 10:53 ` Peter Robinson
2025-09-24 10:58 ` Stefan Wahren
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