openwrt/target/linux/bcm4908/patches-5.4/037-v5.20-0009-arm64-dts-broadcom-bcm4908-Fix-cpu-node-for-smp-boot.patch
Rafał Miłecki 1727e356f0 bcm4908: backport bcmbca DT patches queued for 5.20
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit d63ef7c90f)
2022-09-02 12:23:05 +02:00

29 lines
1.1 KiB
Diff

From 8bd582ae9a71d7f14c4e0c735b2eacaf7516d626 Mon Sep 17 00:00:00 2001
From: William Zhang <william.zhang@broadcom.com>
Date: Fri, 8 Jul 2022 11:25:07 -0700
Subject: [PATCH] arm64: dts: broadcom: bcm4908: Fix cpu node for smp boot
Add spin-table enable-method and cpu-release-addr properties for
cpu0 node. This is required by all ARMv8 SoC. Otherwise some
bootloader like u-boot can not update cpu-release-addr and linux
fails to start up secondary cpus.
Fixes: 2961f69f151c ("arm64: dts: broadcom: add BCM4908 and Asus GT-AC5300 early DTS files")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
@@ -29,6 +29,8 @@
device_type = "cpu";
compatible = "brcm,brahma-b53";
reg = <0x0>;
+ enable-method = "spin-table";
+ cpu-release-addr = <0x0 0xfff8>;
next-level-cache = <&l2>;
};