linux-kernel - Re: [PATCH 1/9] arm64: dts: meson: g12a: Add AO Clock + Reset Controller support

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Message-ID: <CAFBinCCF81Af=5F19NT337Tfx+oQzx7-zFu2063z7wSfU3qfjQ@mail.gmail.com>
Date:   Fri, 15 Mar 2019 22:07:14 +0100
From:   Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     khilman@...libre.com, linux-amlogic@...ts.infradead.org,
        Jerome Brunet <jbrunet@...libre.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/9] arm64: dts: meson: g12a: Add AO Clock + Reset
 Controller support

Hi Neil,

On Thu, Mar 7, 2019 at 4:14 PM Neil Armstrong <narmstrong@...libre.com> wrote:
>
> Add nodes and properties for the AO Clocks and Resets.
>
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> ---
>  arch/arm64/boot/dts/amlogic/meson-g12a.dtsi | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> index 191d31db9853..0eb5220da82c 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12a.dtsi
> @@ -122,6 +122,23 @@
>                         #size-cells = <2>;
>                         ranges = <0x0 0x0 0x0 0xff800000 0x0 0x100000>;
>
> +                       rti: sys-ctrl@0 {
> +                               compatible = "amlogic,meson-gx-ao-sysctrl",
> +                                            "simple-mfd", "syscon";
> +                               reg = <0x0 0x0 0x0 0x1000>;
> +                               #address-cells = <2>;
> +                               #size-cells = <2>;
> +                               ranges = <0x0 0x0 0x0 0x0 0x0 0x1000>;
is this supposed to be 0x1000 (GX uses 0x100 here)?
my understanding is that G12A has the AO CEC at aobus + 0x100, so
using a size of 0x1000 would make it overlap


Regards
Martin