[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20220225175822.8293-5-srinivas.kandagatla@linaro.org>
Date: Fri, 25 Feb 2022 17:58:22 +0000
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
Rafał Miłecki <rafal@...ecki.pl>,
Rob Herring <robh@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 4/4] dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells
From: Rafał Miłecki <rafal@...ecki.pl>
NVRAM doesn't have cells at hardcoded addresses. They are stored in
internal struct (custom & dynamic format). It's still important to
define relevant cells in DT so NVMEM consumers can reference them.
Update binding to allow including basic cells as NVMEM device subnodes.
Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
.../devicetree/bindings/nvmem/brcm,nvram.yaml | 25 +++++++++++++++++--
1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml
index 8c3f0cd22821..25033de3ef6b 100644
--- a/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml
+++ b/Documentation/devicetree/bindings/nvmem/brcm,nvram.yaml
@@ -14,6 +14,8 @@ description: |
NVRAM can be accessed on Broadcom BCM47xx MIPS and Northstar ARM Cortex-A9
devices usiong I/O mapped memory.
+ NVRAM variables can be defined as NVMEM device subnodes.
+
maintainers:
- Rafał Miłecki <rafal@...ecki.pl>
@@ -27,11 +29,30 @@ properties:
reg:
maxItems: 1
+ board_id:
+ type: object
+ description: Board identification name
+
+ et0macaddr:
+ type: object
+ description: First Ethernet interface's MAC address
+
+ et1macaddr:
+ type: object
+ description: Second Ethernet interface's MAC address
+
+ et2macaddr:
+ type: object
+ description: Third Ethernet interface's MAC address
+
unevaluatedProperties: false
examples:
- |
nvram@...f0000 {
- compatible = "brcm,nvram";
- reg = <0x1eff0000 0x10000>;
+ compatible = "brcm,nvram";
+ reg = <0x1eff0000 0x10000>;
+
+ mac: et0macaddr {
+ };
};
--
2.21.0
Powered by blists - more mailing lists