On 08/09/2017 01:10 PM, Bjorn Andersson wrote:
> On msm8916 and msm8996 boards a secure io-write is used to write the
> magic for selecting "download mode", specify this address in the
> DeviceTree.
>
> Note that qcom_scm.download_mode=1 must be specified on the kernel
> command line for the kernel to attempt selecting download mode.
>
> Signed-off-by: Bjorn Andersson <bjorn.anders...@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/msm8916.dtsi | 2 ++
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 7 +++++++
>  2 files changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi 
> b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> index 039991f80831..b7197f2e7209 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> @@ -241,6 +241,8 @@
>                       clocks = <&gcc GCC_CRYPTO_CLK>, <&gcc 
> GCC_CRYPTO_AXI_CLK>, <&gcc GCC_CRYPTO_AHB_CLK>;
>                       clock-names = "core", "bus", "iface";
>                       #reset-cells = <1>;
> +
> +                     qcom,dload-mode = <&tcsr>;
>               };
>       };
>  
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi 
> b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 8f085716e258..2eee6a33f22b 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -261,6 +261,8 @@
>       firmware {
>               scm {
>                       compatible = "qcom,scm-msm8996";
> +
> +                     qcom,dload-mode = <&tcsr>;

We don't need an offset into tcsr?

>               };
>       };
>  
> @@ -287,6 +289,11 @@
>                       reg = <0x740000 0x20000>;
>               };
>  
> +             tcsr: syscon@1937000 {

This doesn't match reg property.

> +                     compatible = "qcom,tcsr-msm8996", "syscon";
> +                     reg = <0x7a0000 0x18000>;
> +             };
> +
>               intc: interrupt-controller@9bc0000 {
>                       compatible = "arm,gic-v3";
>                       #interrupt-cells = <3>;


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