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[PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI

Started byLuke Starrett <luke.starrett@broadcom.com>
First post2016-04-20 19:50 +0200
Last post2016-04-22 21:10 +0200
Articles 3 — 3 participants

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  [PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI Luke Starrett <luke.starrett@broadcom.com> - 2016-04-20 19:50 +0200
    Re: [PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI Scott Branden <scott.branden@broadcom.com> - 2016-04-20 21:10 +0200
    Re: [PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI Florian Fainelli <f.fainelli@gmail.com> - 2016-04-22 21:10 +0200

#1383582 — [PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI

FromLuke Starrett <luke.starrett@broadcom.com>
Date2016-04-20 19:50 +0200
Subject[PATCH v2 1/1] arm64: dts: NS2 secondary core enablement via PSCI
Message-ID<rq4qe-3at-1@gated-at.bofh.it>
Declare PSCI-1.0 node and enable CPU_ON method via PSCI.  Spin-table
memreserve has been removed as well as syscon based reset, as PSCI-1.0
expects reset implementation in firmware.

Signed-off-by: Luke Starrett <luke.starrett@broadcom.com>
---

Changes from v1:
 - No code changes, adding missing reviewers to CC list

 arch/arm64/boot/dts/broadcom/ns2.dtsi | 31 +++++++++----------------------
 1 file changed, 9 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
index 123cd9c..ec68ec1 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -33,8 +33,6 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/bcm-ns2.h>
 
-/memreserve/ 0x84b00000 0x00000008;
-
 / {
 	compatible = "brcm,ns2";
 	interrupt-parent = <&gic>;
@@ -49,8 +47,7 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0 0>;
-			enable-method = "spin-table";
-			cpu-release-addr = <0 0x84b00000>;
+			enable-method = "psci";
 			next-level-cache = <&CLUSTER0_L2>;
 		};
 
@@ -58,8 +55,7 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0 1>;
-			enable-method = "spin-table";
-			cpu-release-addr = <0 0x84b00000>;
+			enable-method = "psci";
 			next-level-cache = <&CLUSTER0_L2>;
 		};
 
@@ -67,8 +63,7 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0 2>;
-			enable-method = "spin-table";
-			cpu-release-addr = <0 0x84b00000>;
+			enable-method = "psci";
 			next-level-cache = <&CLUSTER0_L2>;
 		};
 
@@ -76,8 +71,7 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a57", "arm,armv8";
 			reg = <0 3>;
-			enable-method = "spin-table";
-			cpu-release-addr = <0 0x84b00000>;
+			enable-method = "psci";
 			next-level-cache = <&CLUSTER0_L2>;
 		};
 
@@ -86,6 +80,11 @@
 		};
 	};
 
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(0xff) |
@@ -252,18 +251,6 @@
 			mmu-masters;
 		};
 
-		crmu: crmu@65024000 {
-			compatible = "syscon";
-			reg = <0x65024000 0x100>;
-		};
-
-		reboot@65024000 {
-			compatible ="syscon-reboot";
-			regmap = <&crmu>;
-			offset = <0x90>;
-			mask = <0xfffffffd>;
-		};
-
 		gic: interrupt-controller@65210000 {
 			compatible = "arm,gic-400";
 			#interrupt-cells = <3>;
-- 
2.1.0

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#1383641

FromScott Branden <scott.branden@broadcom.com>
Date2016-04-20 21:10 +0200
Message-ID<rq5FD-4gR-5@gated-at.bofh.it>
In reply to#1383582
Looks good while we are using PSCI-1.0

Acked-by: Scott Branden <scott.branden@broadcom.com>

On 16-04-20 10:40 AM, Luke Starrett wrote:
> Declare PSCI-1.0 node and enable CPU_ON method via PSCI.  Spin-table
> memreserve has been removed as well as syscon based reset, as PSCI-1.0
> expects reset implementation in firmware.
>
> Signed-off-by: Luke Starrett <luke.starrett@broadcom.com>
> ---
>
> Changes from v1:
>   - No code changes, adding missing reviewers to CC list
>
>   arch/arm64/boot/dts/broadcom/ns2.dtsi | 31 +++++++++----------------------
>   1 file changed, 9 insertions(+), 22 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
> index 123cd9c..ec68ec1 100644
> --- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
> +++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
> @@ -33,8 +33,6 @@
>   #include <dt-bindings/interrupt-controller/arm-gic.h>
>   #include <dt-bindings/clock/bcm-ns2.h>
>
> -/memreserve/ 0x84b00000 0x00000008;
> -
>   / {
>   	compatible = "brcm,ns2";
>   	interrupt-parent = <&gic>;
> @@ -49,8 +47,7 @@
>   			device_type = "cpu";
>   			compatible = "arm,cortex-a57", "arm,armv8";
>   			reg = <0 0>;
> -			enable-method = "spin-table";
> -			cpu-release-addr = <0 0x84b00000>;
> +			enable-method = "psci";
>   			next-level-cache = <&CLUSTER0_L2>;
>   		};
>
> @@ -58,8 +55,7 @@
>   			device_type = "cpu";
>   			compatible = "arm,cortex-a57", "arm,armv8";
>   			reg = <0 1>;
> -			enable-method = "spin-table";
> -			cpu-release-addr = <0 0x84b00000>;
> +			enable-method = "psci";
>   			next-level-cache = <&CLUSTER0_L2>;
>   		};
>
> @@ -67,8 +63,7 @@
>   			device_type = "cpu";
>   			compatible = "arm,cortex-a57", "arm,armv8";
>   			reg = <0 2>;
> -			enable-method = "spin-table";
> -			cpu-release-addr = <0 0x84b00000>;
> +			enable-method = "psci";
>   			next-level-cache = <&CLUSTER0_L2>;
>   		};
>
> @@ -76,8 +71,7 @@
>   			device_type = "cpu";
>   			compatible = "arm,cortex-a57", "arm,armv8";
>   			reg = <0 3>;
> -			enable-method = "spin-table";
> -			cpu-release-addr = <0 0x84b00000>;
> +			enable-method = "psci";
>   			next-level-cache = <&CLUSTER0_L2>;
>   		};
>
> @@ -86,6 +80,11 @@
>   		};
>   	};
>
> +	psci {
> +		compatible = "arm,psci-1.0";
> +		method = "smc";
> +	};
> +
>   	timer {
>   		compatible = "arm,armv8-timer";
>   		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(0xff) |
> @@ -252,18 +251,6 @@
>   			mmu-masters;
>   		};
>
> -		crmu: crmu@65024000 {
> -			compatible = "syscon";
> -			reg = <0x65024000 0x100>;
> -		};
> -
> -		reboot@65024000 {
> -			compatible ="syscon-reboot";
> -			regmap = <&crmu>;
> -			offset = <0x90>;
> -			mask = <0xfffffffd>;
> -		};
> -
>   		gic: interrupt-controller@65210000 {
>   			compatible = "arm,gic-400";
>   			#interrupt-cells = <3>;
>

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#1385449

FromFlorian Fainelli <f.fainelli@gmail.com>
Date2016-04-22 21:10 +0200
Message-ID<rqOCK-75k-21@gated-at.bofh.it>
In reply to#1383582
On 20/04/16 10:40, Luke Starrett wrote:
> Declare PSCI-1.0 node and enable CPU_ON method via PSCI.  Spin-table
> memreserve has been removed as well as syscon based reset, as PSCI-1.0
> expects reset implementation in firmware.
> 
> Signed-off-by: Luke Starrett <luke.starrett@broadcom.com>

Applied with Scott's Ack, thanks Luke!
-- 
Florian

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