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From: Jennifer Berringer <jberring@redhat.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-kernel@vger.kernel.org,
	Jennifer Berringer <jberring@redhat.com>
Subject: [PATCH 1/2] riscv: dts: spacemit: k3-com260: add eeprom on i2c2
Date: Wed, 22 Jul 2026 16:28:47 -0400	[thread overview]
Message-ID: <20260722202848.1817988-2-jberring@redhat.com> (raw)
In-Reply-To: <20260722202848.1817988-1-jberring@redhat.com>

Enable i2c2 on the K3 CoM260 compute module and use it for a 24c02
eeprom. This eeprom stores the product name, a MAC address, and a serial
number.

Signed-off-by: Jennifer Berringer <jberring@redhat.com>
---
 arch/riscv/boot/dts/spacemit/k3-com260.dtsi | 32 +++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
index a38d7b738258d..a6f160dca19de 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
@@ -26,6 +26,38 @@ reg_5v_sys: regulator-5v-sys {
 	};
 };
 
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_1_cfg>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		pagesize = <8>;
+		reg = <0x50>;
+		read-only;
+		size = <256>;
+		status = "okay";
+
+		nvmem-layout {
+			compatible = "onie,tlv-layout";
+
+			mac-address {
+				#nvmem-cell-cells = <1>;
+			};
+
+			num-macs {
+			};
+
+			product-name {
+			};
+
+			serial-number {
+			};
+		};
+	};
+};
+
 &i2c8 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c8_cfg>;
-- 
2.55.0


WARNING: multiple messages have this Message-ID (diff)
From: Jennifer Berringer <jberring@redhat.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-kernel@vger.kernel.org,
	Jennifer Berringer <jberring@redhat.com>
Subject: [PATCH 1/2] riscv: dts: spacemit: k3-com260: add eeprom on i2c2
Date: Wed, 22 Jul 2026 16:28:47 -0400	[thread overview]
Message-ID: <20260722202848.1817988-2-jberring@redhat.com> (raw)
In-Reply-To: <20260722202848.1817988-1-jberring@redhat.com>

Enable i2c2 on the K3 CoM260 compute module and use it for a 24c02
eeprom. This eeprom stores the product name, a MAC address, and a serial
number.

Signed-off-by: Jennifer Berringer <jberring@redhat.com>
---
 arch/riscv/boot/dts/spacemit/k3-com260.dtsi | 32 +++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
index a38d7b738258d..a6f160dca19de 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
@@ -26,6 +26,38 @@ reg_5v_sys: regulator-5v-sys {
 	};
 };
 
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_1_cfg>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		pagesize = <8>;
+		reg = <0x50>;
+		read-only;
+		size = <256>;
+		status = "okay";
+
+		nvmem-layout {
+			compatible = "onie,tlv-layout";
+
+			mac-address {
+				#nvmem-cell-cells = <1>;
+			};
+
+			num-macs {
+			};
+
+			product-name {
+			};
+
+			serial-number {
+			};
+		};
+	};
+};
+
 &i2c8 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c8_cfg>;
-- 
2.55.0


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  reply	other threads:[~2026-07-22 20:31 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-22 20:28 [PATCH 0/2] riscv: dts: spacemit: add eeprom for K3 CoM260 Jennifer Berringer
2026-07-22 20:28 ` Jennifer Berringer
2026-07-22 20:28 ` Jennifer Berringer [this message]
2026-07-22 20:28   ` [PATCH 1/2] riscv: dts: spacemit: k3-com260: add eeprom on i2c2 Jennifer Berringer
2026-07-22 20:28 ` [PATCH 2/2] riscv: dts: spacemit: k3-com260-ifx: add eeprom on i2c1 Jennifer Berringer
2026-07-22 20:28   ` Jennifer Berringer
2026-07-22 20:37   ` sashiko-bot
2026-07-25 13:28 ` [PATCH 0/2] riscv: dts: spacemit: add eeprom for K3 CoM260 Yixun Lan
2026-07-25 13:28   ` Yixun Lan

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