All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jon Hunter <jonathanh@nvidia.com>
To: Thierry Reding <thierry.reding@gmail.com>,
	Stephen Warren <swarren@nvidia.com>
Cc: devicetree@vger.kernel.org,
	Vagrant Cascadian <vagrant@debian.org>,
	Jon Hunter <jonathanh@nvidia.com>,
	linux-tegra@vger.kernel.org, Martin Michlmayr <tbm@cyrius.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210 platforms
Date: Tue, 28 Mar 2017 12:48:38 +0100	[thread overview]
Message-ID: <1490701718-16571-1-git-send-email-jonathanh@nvidia.com> (raw)

Add the CPU and PSCI nodes for the NVIDIA Tegra210 platforms so that
all CPUs can be enabled on boot. This assumes that the PSCI firmware
has been loaded during the initial bootstrap on the device before the
kernel starts (which is typically the case for these platforms). The
PSCI firmware version is set to v0.2 which aligns with the current
shipping version for Tegra.

Reported-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 23 +++++++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi | 24 ++++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 906fb836d241..de1696c28140 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -296,6 +296,29 @@
 		};
 	};
 
+	cpus {
+		cpu@0 {
+			enable-method = "psci";
+		};
+
+		cpu@1 {
+			enable-method = "psci";
+		};
+
+		cpu@2 {
+			enable-method = "psci";
+		};
+
+		cpu@3 {
+			enable-method = "psci";
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
 	regulators {
 		vdd_gpu: regulator@100 {
 			compatible = "pwm-regulator";
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
index 0ec92578cacb..67cb039965fd 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
@@ -51,4 +51,28 @@
 			clock-frequency = <32768>;
 		};
 	};
+
+	cpus {
+		cpu@0 {
+			enable-method = "psci";
+		};
+
+		cpu@1 {
+			enable-method = "psci";
+		};
+
+		cpu@2 {
+			enable-method = "psci";
+		};
+
+		cpu@3 {
+			enable-method = "psci";
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
 };
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: jonathanh@nvidia.com (Jon Hunter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210 platforms
Date: Tue, 28 Mar 2017 12:48:38 +0100	[thread overview]
Message-ID: <1490701718-16571-1-git-send-email-jonathanh@nvidia.com> (raw)

Add the CPU and PSCI nodes for the NVIDIA Tegra210 platforms so that
all CPUs can be enabled on boot. This assumes that the PSCI firmware
has been loaded during the initial bootstrap on the device before the
kernel starts (which is typically the case for these platforms). The
PSCI firmware version is set to v0.2 which aligns with the current
shipping version for Tegra.

Reported-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 23 +++++++++++++++++++++++
 arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi | 24 ++++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 906fb836d241..de1696c28140 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -296,6 +296,29 @@
 		};
 	};
 
+	cpus {
+		cpu at 0 {
+			enable-method = "psci";
+		};
+
+		cpu at 1 {
+			enable-method = "psci";
+		};
+
+		cpu at 2 {
+			enable-method = "psci";
+		};
+
+		cpu at 3 {
+			enable-method = "psci";
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
 	regulators {
 		vdd_gpu: regulator at 100 {
 			compatible = "pwm-regulator";
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
index 0ec92578cacb..67cb039965fd 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
@@ -51,4 +51,28 @@
 			clock-frequency = <32768>;
 		};
 	};
+
+	cpus {
+		cpu at 0 {
+			enable-method = "psci";
+		};
+
+		cpu at 1 {
+			enable-method = "psci";
+		};
+
+		cpu at 2 {
+			enable-method = "psci";
+		};
+
+		cpu at 3 {
+			enable-method = "psci";
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
 };
-- 
2.7.4

             reply	other threads:[~2017-03-28 11:48 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-28 11:48 Jon Hunter [this message]
2017-03-28 11:48 ` [PATCH] arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210 platforms Jon Hunter
2017-03-28 14:55 ` Sudeep Holla
2017-03-28 14:55   ` Sudeep Holla
     [not found]   ` <bf527c4b-f17c-bfcf-e7fa-dab64b131996-5wv7dgnIgG8@public.gmane.org>
2017-03-28 15:32     ` Jon Hunter
2017-03-28 15:32       ` Jon Hunter
     [not found]       ` <e3ab2e09-ee32-96e2-b0c8-f7def668bf31-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-03-28 15:37         ` Sudeep Holla
2017-03-28 15:37           ` Sudeep Holla
2017-03-28 16:23 ` Stephen Warren
2017-03-28 16:23   ` Stephen Warren
     [not found]   ` <9069e2fd-bf7b-b1df-3d1b-071ee21642ef-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2017-03-28 16:49     ` Jon Hunter
2017-03-28 16:49       ` Jon Hunter
     [not found]       ` <f9c59c65-de48-108d-73df-c659cc3300e6-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-03-28 18:54         ` Mark Rutland
2017-03-28 18:54           ` Mark Rutland
2017-04-09  2:22 ` Vagrant Cascadian
2017-04-09  2:22   ` Vagrant Cascadian

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1490701718-16571-1-git-send-email-jonathanh@nvidia.com \
    --to=jonathanh@nvidia.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-tegra@vger.kernel.org \
    --cc=swarren@nvidia.com \
    --cc=tbm@cyrius.com \
    --cc=thierry.reding@gmail.com \
    --cc=vagrant@debian.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.