Hi Stephen,
On Sun, 2019-11-17 at 23:58 -0800, Stephen Brennan wrote:
> From: Stefan Wahren <wahrenst@xxxxxxx>
>
> This enables hardware random number generator support for the BCM2711
> on the Raspberry Pi 4 board.
>
> Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
> Signed-off-by: Stephen Brennan <stephen@xxxxxxxxxx>
> ---
> arch/arm/boot/dts/bcm2711.dtsi | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index ac83dac2e6ba..2c19e5de284a 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -92,10 +92,9 @@ pm: watchdog@7e100000 {
> };
>
> rng@7e104000 {
> + compatible = "brcm,bcm2711-rng200";
> interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
> -
> - /* RNG is incompatible with brcm,bcm2835-rng */
> - status = "disabled";
> + status = "okay";
> };
>
> uart2: serial@7e201400 {
We inherit the reg property from bcm283x.dtsi, on which we only define a size
of 0x10 bytes. I gather from the driver that iproc-rng200's register space is
at least 0x28 bytes big. We should also update the 'reg' property to:
reg = <0x7e104000 0x28>;
Regards,
Nicolas
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