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
next prev parent reply other threads:[~2026-07-22 20:31 UTC|newest]
Thread overview: 4+ 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 [this message]
2026-07-22 20:28 ` [PATCH 2/2] riscv: dts: spacemit: k3-com260-ifx: add eeprom on i2c1 Jennifer Berringer
2026-07-22 20:37 ` sashiko-bot
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