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SubjectRe: [PATCH v2] arm64: dts: qcom: Add SDM845 SMEM nodes
On Mon 30 Apr 07:44 PDT 2018, Sibi Sankar wrote:

> Add all the necessary dt nodes to support SMEM driver
> on SDM845. It also adds the required memory carveouts
> so that the kernel does not access memory that is in
> use.
>
> Signed-off-by: Sibi Sankar <sibis@codeaurora.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> ---
>
> This patch depends on:
> https://patchwork.kernel.org/patch/10276419/
> https://patchwork.kernel.org/patch/10363361/
>
> arch/arm64/boot/dts/qcom/sdm845.dtsi | 38 ++++++++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 9be763da0664..55e7d7e23b10 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -21,6 +21,27 @@
> reg = <0 0x80000000 0 0>;
> };
>
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + memory@85fc0000 {
> + reg = <0 0x85fc0000 0 0x20000>;
> + no-map;
> + };
> +
> + smem_mem: memory@86000000 {
> + reg = <0x0 0x86000000 0x0 0x200000>;
> + no-map;
> + };
> +
> + memory@86200000 {
> + reg = <0 0x86200000 0 0x2d00000>;
> + no-map;
> + };
> + };
> +
> cpus {
> #address-cells = <2>;
> #size-cells = <0>;
> @@ -147,6 +168,18 @@
> };
> };
>
> + tcsr_mutex: hwlock {
> + compatible = "qcom,tcsr-mutex";
> + syscon = <&tcsr_mutex_regs 0 0x1000>;
> + #hwlock-cells = <1>;
> + };
> +
> + smem {
> + compatible = "qcom,smem";
> + memory-region = <&smem_mem>;
> + hwlocks = <&tcsr_mutex 3>;
> + };
> +
> psci {
> compatible = "arm,psci-1.0";
> method = "smc";
> @@ -339,6 +372,11 @@
> };
> };
>
> + tcsr_mutex_regs: syscon@1f40000 {
> + compatible = "syscon";
> + reg = <0x1f40000 0x40000>;
> + };
> +
> apss_shared: mailbox@17990000 {
> compatible = "qcom,sdm845-apss-shared";
> reg = <0x17990000 0x1000>;
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>

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