linux-kernel - [PATCH v3 2/3] ARM: dts: at91: at91-sama7g5ek: add EEPROMs

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Message-ID: <20240628080146.49545-3-andrei.simion@microchip.com>
Date: Fri, 28 Jun 2024 11:01:45 +0300
From: Andrei Simion <andrei.simion@...rochip.com>
To: <brgl@...ev.pl>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <nicolas.ferre@...rochip.com>,
	<alexandre.belloni@...tlin.com>, <claudiu.beznea@...on.dev>, <arnd@...db.de>,
	<gregkh@...uxfoundation.org>
CC: <linux-i2c@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	Claudiu Beznea <claudiu.beznea@...rochip.com>, Andrei Simion
	<andrei.simion@...rochip.com>
Subject: [PATCH v3 2/3] ARM: dts: at91: at91-sama7g5ek: add EEPROMs

From: Claudiu Beznea <claudiu.beznea@...rochip.com>

Add EEPROMs and nvmem-layout to describe eui48 mac address region.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
[andrei.simion@...rochip.com: add nvmem-layout to describe eui48 mac region
align compatible name with datasheet]
Signed-off-by: Andrei Simion <andrei.simion@...rochip.com>
---
v2 -> v3:
- change from atmel,24mac02e4 to microchip,24aa025e48 to align with the datasheet
- drop co-developed-by to maintain the chronological order of the changes

v1 -> v2:
- remove unnecessary #address-cells #size-cells
---
 .../arm/boot/dts/microchip/at91-sama7g5ek.dts | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/at91-sama7g5ek.dts b/arch/arm/boot/dts/microchip/at91-sama7g5ek.dts
index 20b2497657ae..40f4480e298b 100644
--- a/arch/arm/boot/dts/microchip/at91-sama7g5ek.dts
+++ b/arch/arm/boot/dts/microchip/at91-sama7g5ek.dts
@@ -403,6 +403,42 @@ i2c8: i2c@600 {
 		i2c-digital-filter;
 		i2c-digital-filter-width-ns = <35>;
 		status = "okay";
+
+		eeprom0: eeprom@52 {
+			compatible = "microchip,24aa025e48";
+			reg = <0x52>;
+			size = <256>;
+			pagesize = <16>;
+			vcc-supply = <&vdd_3v3>;
+
+			nvmem-layout {
+				compatible = "fixed-layout";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				eeprom0_eui48: eui48@fa {
+					reg = <0xfa 0x6>;
+				};
+			};
+		};
+
+		eeprom1: eeprom@53 {
+			compatible = "microchip,24aa025e48";
+			reg = <0x53>;
+			size = <256>;
+			pagesize = <16>;
+			vcc-supply = <&vdd_3v3>;
+
+			nvmem-layout {
+				compatible = "fixed-layout";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				eeprom1_eui48: eui48@fa {
+					reg = <0xfa 0x6>;
+				};
+			};
+		};
 	};
 };
 
@@ -440,6 +476,8 @@ &pinctrl_gmac0_mdio_default
 		     &pinctrl_gmac0_txck_default
 		     &pinctrl_gmac0_phy_irq>;
 	phy-mode = "rgmii-id";
+	nvmem-cells = <&eeprom0_eui48>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 
 	ethernet-phy@7 {
@@ -457,6 +495,8 @@ &gmac1 {
 		     &pinctrl_gmac1_mdio_default
 		     &pinctrl_gmac1_phy_irq>;
 	phy-mode = "rmii";
+	nvmem-cells = <&eeprom1_eui48>;
+	nvmem-cell-names = "mac-address";
 	status = "okay"; /* Conflict with pdmc0. */
 
 	ethernet-phy@0 {
-- 
2.34.1