linux-kernel - [PATCH] mips: bmips: bcm6358/6368: define required brcm,bmips-cbr-reg

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Message-ID: <20241001152404.15830-1-ansuelsmth@gmail.com>
Date: Tue,  1 Oct 2024 17:23:59 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	linux-mips@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Christian Marangi <ansuelsmth@...il.com>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH] mips: bmips: bcm6358/6368: define required brcm,bmips-cbr-reg

For the bcm6358/6368 SoC the brcm,bmips-cbr-reg due to bootloader
misconfiguration or HW bug from running the system from TP1.

A workaround is now present to handle broken system that suffer from
this bug hence add the now required property.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202409251520.pE12GzHd-lkp@intel.com/
Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 arch/mips/boot/dts/brcm/bcm6358.dtsi | 1 +
 arch/mips/boot/dts/brcm/bcm6368.dtsi | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
index 777c4379ed03..5e487f66c343 100644
--- a/arch/mips/boot/dts/brcm/bcm6358.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
@@ -13,6 +13,7 @@ cpus {
 		#size-cells = <0>;
 
 		mips-hpt-frequency = <150000000>;
+		brcm,bmips-cbr-reg = <0xff400000>;
 
 		cpu@0 {
 			compatible = "brcm,bmips4350";
diff --git a/arch/mips/boot/dts/brcm/bcm6368.dtsi b/arch/mips/boot/dts/brcm/bcm6368.dtsi
index fc15e200877d..087f3295a14b 100644
--- a/arch/mips/boot/dts/brcm/bcm6368.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6368.dtsi
@@ -13,6 +13,7 @@ cpus {
 		#size-cells = <0>;
 
 		mips-hpt-frequency = <200000000>;
+		brcm,bmips-cbr-reg = <0xff400000>;
 
 		cpu@0 {
 			compatible = "brcm,bmips4350";
-- 
2.45.2