linux-kernel - Re: [PATCH V4 8/8] arm64: dts: ipq6018: Add a53 pll and apcs clock

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Message-ID: <20200518180325.GB2165@builder.lan>
Date:   Mon, 18 May 2020 11:03:25 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Sivaprakash Murugesan <sivaprak@...eaurora.org>
Cc:     agross@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        robh+dt@...nel.org, jassisinghbrar@...il.com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 8/8] arm64: dts: ipq6018: Add a53 pll and apcs clock

On Tue 12 May 20:55 PDT 2020, Sivaprakash Murugesan wrote:

> Hi Bjorn,
> 
> On 5/13/2020 1:54 AM, Bjorn Andersson wrote:
> > On Sun 03 May 23:20 PDT 2020, Sivaprakash Murugesan wrote:
> > 
> > > add support for apps pll and apcs clock.
> > > 
> > > Signed-off-by: Sivaprakash Murugesan <sivaprak@...eaurora.org>
> > > ---
> > >   arch/arm64/boot/dts/qcom/ipq6018.dtsi | 16 +++++++++++++---
> > >   1 file changed, 13 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> > > index 1aa8d85..af2ceeb 100644
> > > --- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> > > @@ -294,12 +294,22 @@
> > >   		};
> > >   		apcs_glb: mailbox@...1000 {
> > > -			compatible = "qcom,ipq8074-apcs-apps-global";
> > > -			reg = <0x0b111000 0xc>;
> > > -
> > > +			compatible = "qcom,ipq6018-apcs-apps-global";
> > > +			reg = <0x0b111000 0x1000>;
> > My documentation states that IPQ8074 indeed has this block at
> > 0x0b111000, but IPQ6018 it's at 0x6b111000. Can you confirm this is
> > correct? Same with the pll below.
> The address 0x6b111000 is how the RPM sees this block. For A53 it is still
> 0xb111000

Okay, thanks for confirming.

Regards,
Bjorn