linux-kernel - [PATCH 4/4] dt-bindings: net: imx-dwmac: introduce nvmem property

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Message-Id: <20220324042024.26813-5-peng.fan@oss.nxp.com>
Date:   Thu, 24 Mar 2022 12:20:24 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     ulf.hansson@...aro.org, robh+dt@...nel.org, krzk+dt@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, wg@...ndegger.com,
        mkl@...gutronix.de, davem@...emloft.net, kuba@...nel.org,
        pabeni@...hat.com, qiangqing.zhang@....com
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        Peng Fan <peng.fan@....com>
Subject: [PATCH 4/4] dt-bindings: net: imx-dwmac: introduce nvmem property

From: Peng Fan <peng.fan@....com>

To i.MX8M Family variants, dwmac maybe fused out. Bootloader could use
this property to read out the fuse value and mark the node status
at runtime.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
index 011363166789..911e510d14c6 100644
--- a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
+++ b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
@@ -62,6 +62,15 @@ properties:
       Should be phandle/offset pair. The phandle to the syscon node which
       encompases the GPR register, and the offset of the GPR register.
 
+  nvmem-cells:
+    maxItems: 1
+    description:
+      Nvmem data cell that indicate whether this IP is fused or not.
+
+  nvmem-cell-names:
+    items:
+      - const: fused
+
   snps,rmii_refclk_ext:
     $ref: /schemas/types.yaml#/definitions/flag
     description:
-- 
2.35.1