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

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Message-ID: <5C8D079B.5020803@baylibre.com>
Date:   Sat, 16 Mar 2019 15:26:35 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.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,

Le 15/03/2019 22:07, Martin Blumenstingl a écrit :
> 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


Hmm, Let me check

Neil

> 
> 
> Regards
> Martin
>