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Date:   Fri, 21 Oct 2022 15:28:28 +0530
From:   Vivek Yadav <>
Cc:,,, Vivek Yadav <>
Subject: [PATCH 2/7] dt-bindings: can: mcan: Add ECC functionality to
 message ram

Whenever the data is transferred or stored on message ram, there are
inherent risks of it being lost or corruption known as single-bit errors.

ECC constantly scans data as it is processed to the message ram, using a
method known as parity checking and raise the error signals for corruption.

Add error correction code config property to enable/disable the
error correction code (ECC) functionality for Message RAM used to create
valid ECC checksums.

Signed-off-by: Chandrasekar R <>
Signed-off-by: Vivek Yadav <>
 Documentation/devicetree/bindings/net/can/bosch,m_can.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
index 26aa0830eea1..0ba3691863d7 100644
--- a/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
+++ b/Documentation/devicetree/bindings/net/can/bosch,m_can.yaml
@@ -50,6 +50,10 @@ properties:
       - const: hclk
       - const: cclk
+  mram-ecc-cfg:
+    items:
+      - description: M_CAN ecc registers map with configuration register offset
     description: |
       Message RAM configuration data.

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