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* [PATCH] arm64: dts: qcom: Add SDM845 SMEM nodes
@ 2018-04-25 14:46 Sibi Sankar
  2018-04-25 22:06 ` Bjorn Andersson
  0 siblings, 1 reply; 3+ messages in thread
From: Sibi Sankar @ 2018-04-25 14:46 UTC (permalink / raw)
  To: andy.gross, david.brown, robh+dt, bjorn.andersson
  Cc: mark.rutland, catalin.marinas, will.deacon, linux-arm-msm,
	linux-kernel, devicetree, linux-soc, 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..bea985045759 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 0x40000>;
+			no-map;
+		};
+
+		smem_mem: smem-mem@86000000 {
+			reg = <0x0 0x86000000 0x0 0x200000>;
+			no-map;
+		};
+
+		memory@86000000 {
+			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

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2018-04-26 14:25 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2018-04-25 14:46 [PATCH] arm64: dts: qcom: Add SDM845 SMEM nodes Sibi Sankar
2018-04-25 22:06 ` Bjorn Andersson
2018-04-26 14:25   ` Sibi S

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