linux-kernel - [PATCH 5.18 038/231] riscv: dts: microchip: hook up the mpfs l2cache

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Date:   Tue, 19 Jul 2022 13:52:03 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sudeep Holla <sudeep.holla@....com>,
        Daire McNamara <daire.mcnamara@...rochip.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 038/231] riscv: dts: microchip: hook up the mpfs l2cache

From: Conor Dooley <conor.dooley@...rochip.com>

[ Upstream commit efa310ba00716d7a872bdc5fa1f5545edc9efd69 ]

The initial PolarFire SoC devicetree must have been forked off from
the fu540 one prior to the addition of l2cache controller support being
added there. When the controller node was added to mpfs.dtsi, it was
not hooked up to the CPUs & thus sysfs reports an incorrect cache
configuration. Hook it up.

Fixes: 0fa6107eca41 ("RISC-V: Initial DTS for Microchip ICICLE board")
Reviewed-by: Sudeep Holla <sudeep.holla@....com>
Reviewed-by: Daire McNamara <daire.mcnamara@...rochip.com>
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
index f44fce1fe080..2f75e39d2fdd 100644
--- a/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
+++ b/arch/riscv/boot/dts/microchip/microchip-mpfs.dtsi
@@ -51,6 +51,7 @@ cpu1: cpu@1 {
 			riscv,isa = "rv64imafdc";
 			clocks = <&clkcfg CLK_CPU>;
 			tlb-split;
+			next-level-cache = <&cctrllr>;
 			status = "okay";
 
 			cpu1_intc: interrupt-controller {
@@ -78,6 +79,7 @@ cpu2: cpu@2 {
 			riscv,isa = "rv64imafdc";
 			clocks = <&clkcfg CLK_CPU>;
 			tlb-split;
+			next-level-cache = <&cctrllr>;
 			status = "okay";
 
 			cpu2_intc: interrupt-controller {
@@ -105,6 +107,7 @@ cpu3: cpu@3 {
 			riscv,isa = "rv64imafdc";
 			clocks = <&clkcfg CLK_CPU>;
 			tlb-split;
+			next-level-cache = <&cctrllr>;
 			status = "okay";
 
 			cpu3_intc: interrupt-controller {
@@ -132,6 +135,7 @@ cpu4: cpu@4 {
 			riscv,isa = "rv64imafdc";
 			clocks = <&clkcfg CLK_CPU>;
 			tlb-split;
+			next-level-cache = <&cctrllr>;
 			status = "okay";
 			cpu4_intc: interrupt-controller {
 				#interrupt-cells = <1>;
-- 
2.35.1