linux-kernel - [PATCH 7/7] arm64: dts: fsd: Add support for error correction code for message RAM

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Message-Id: <20221021095833.62406-8-vivek.2311@samsung.com>
Date:   Fri, 21 Oct 2022 15:28:33 +0530
From:   Vivek Yadav <vivek.2311@...sung.com>
To:     rcsekar@...sung.com, wg@...ndegger.com, mkl@...gutronix.de,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, pankaj.dubey@...sung.com,
        ravi.patel@...sung.com, alim.akhtar@...sung.com
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Vivek Yadav <vivek.2311@...sung.com>
Subject: [PATCH 7/7] arm64: dts: fsd: Add support for error correction code
 for message RAM

Add mram-ecc-cfg property which indicates the error correction code config
and enable the same for FSD platform.

In FSD, error correction code (ECC) is configured via PERIC SYSREG registers.

Signed-off-by: Vivek Yadav <vivek.2311@...sung.com>
---
 arch/arm64/boot/dts/tesla/fsd.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi b/arch/arm64/boot/dts/tesla/fsd.dtsi
index 154fd3fc5895..03d46a113612 100644
--- a/arch/arm64/boot/dts/tesla/fsd.dtsi
+++ b/arch/arm64/boot/dts/tesla/fsd.dtsi
@@ -778,6 +778,7 @@
 			clocks = <&clock_peric PERIC_MCAN0_IPCLKPORT_PCLK>,
 				<&clock_peric PERIC_MCAN0_IPCLKPORT_CCLK>;
 			clock-names = "hclk", "cclk";
+			mram-ecc-cfg = <&sysreg_peric 0x700>;
 			bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
 			status = "disabled";
 		};
@@ -795,6 +796,7 @@
 			clocks = <&clock_peric PERIC_MCAN1_IPCLKPORT_PCLK>,
 				<&clock_peric PERIC_MCAN1_IPCLKPORT_CCLK>;
 			clock-names = "hclk", "cclk";
+			mram-ecc-cfg = <&sysreg_peric 0x704>;
 			bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
 			status = "disabled";
 		};
@@ -812,6 +814,7 @@
 			clocks = <&clock_peric PERIC_MCAN2_IPCLKPORT_PCLK>,
 				<&clock_peric PERIC_MCAN2_IPCLKPORT_CCLK>;
 			clock-names = "hclk", "cclk";
+			mram-ecc-cfg = <&sysreg_peric 0x708>;
 			bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
 			status = "disabled";
 		};
@@ -829,6 +832,7 @@
 			clocks = <&clock_peric PERIC_MCAN3_IPCLKPORT_PCLK>,
 				<&clock_peric PERIC_MCAN3_IPCLKPORT_CCLK>;
 			clock-names = "hclk", "cclk";
+			mram-ecc-cfg = <&sysreg_peric 0x70c>;
 			bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
 			status = "disabled";
 		};
-- 
2.17.1