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Backport patch from linux-next (next-20180103) to support SMP on 

tegra210 systems.
This commit is contained in:
Vagrant Cascadian 2018-01-04 10:49:51 -08:00
parent 6a221d27b1
commit f65d850bba
3 changed files with 99 additions and 0 deletions
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5
debian/changelog vendored
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@ -1,8 +1,13 @@
linux (4.14.7-2) UNRELEASED; urgency=medium
[ Ben Hutchings ]
* e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
(Closes: #885348)
[ Vagrant Cascadian ]
* [arm64] Backport patch from linux-next to support SMP on tegra210
systems.
-- Ben Hutchings <ben@decadent.org.uk> Thu, 28 Dec 2017 01:18:05 +0000
linux (4.14.7-1) unstable; urgency=medium

91
debian/patches/features/arm64/tegra210-smp/0001-arm64-tegra-Add-CPU-and-PSCI-nodes-for-NVIDIA-Tegra2.patch vendored Normal file
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@ -0,0 +1,91 @@
From d67849c340aa803f25a1b3720ba399fecd4f88ab Mon Sep 17 00:00:00 2001
From: Jon Hunter <jonathanh@nvidia.com>
Date: Tue, 28 Mar 2017 12:48:38 +0100
Subject: [PATCH] arm64: tegra: Add CPU and PSCI nodes for NVIDIA Tegra210
platforms
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>
Tested-By: Vagrant Cascadian <vagrant@debian.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 23 +++++++++++++++++++++++
arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi | 23 +++++++++++++++++++++++
2 files changed, 46 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index d10d4430537a..212e6634c9ba 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -297,6 +297,29 @@
};
};
+ 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 be6066ff97c9..d0dc03923723 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
@@ -52,4 +52,27 @@
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";
+ };
};
--
2.11.0

3
debian/patches/series vendored
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@ -167,4 +167,7 @@ features/arm/dwmac-sun8i/0006-ARM-dts-sunxi-Restore-EMAC-changes-boards.patch
features/arm/dwmac-sun8i/0007-arm-dts-sunxi-h3-h5-Restore-EMAC-changes.patch
features/arm/dwmac-sun8i/0008-ARM-dts-sunxi-h3-h5-represent-the-mdio-switch-used-b.patch
# Backport patches from linux-next (next-20180103) to support SMP on tegra210 systems
features/arm64/tegra210-smp/0001-arm64-tegra-Add-CPU-and-PSCI-nodes-for-NVIDIA-Tegra2.patch
# ABI maintenance