[PATCH v2] arm64: dts: qcom: Add SDM845 SMEM nodes

[PATCH v2] arm64: dts: qcom: Add SDM845 SMEM nodes

[Sibi Sankar]

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>
---

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

Re: [PATCH v2] arm64: dts: qcom: Add SDM845 SMEM nodes

[Bjorn Andersson]

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
>