[PATCH 2/2] riscv: dts: spacemit: k3-com260-ifx: add eeprom on i2c1
From: Jennifer Berringer
Date: Wed Jul 22 2026 - 16:36:29 EST
Enable i2c1 for k3-com260-ifx and use it for a 24c02 eeprom. This
eeprom, unlike the one connected to i2c2, is part of the carrier board.
Some boards do not have any data programmed on this eeprom from factory.
Signed-off-by: Jennifer Berringer <jberring@xxxxxxxxxx>
---
arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts | 15 +++++++++++++++
arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi | 12 ++++++++++++
2 files changed, 27 insertions(+)
diff --git a/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts b/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
index e7f76cd24b903..a5c08a7a781a9 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
+++ b/arch/riscv/boot/dts/spacemit/k3-com260-ifx.dts
@@ -20,6 +20,21 @@ chosen {
};
};
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_1_cfg>;
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c02";
+ pagesize = <8>;
+ reg = <0x50>;
+ read-only;
+ size = <256>;
+ status = "okay";
+ };
+};
+
&sdhci0 {
pinctrl-names = "default","uhs";
pinctrl-0 = <&mmc1_cfg>;
diff --git a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
index 5b9045e014345..6482d24be1394 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-pinctrl.dtsi
@@ -78,6 +78,18 @@ gmac1-phy-0-pins {
};
};
+ /omit-if-no-ref/
+ i2c1_1_cfg: i2c1-1-cfg {
+ i2c1-1-pins {
+ pinmux = <K3_PADCONF(54, 5)>, /* i2c1 scl */
+ <K3_PADCONF(55, 5)>; /* i2c1 sda */
+
+ bias-pull-up = <1>;
+ drive-strength = <25>;
+ power-source = <1800>;
+ };
+ };
+
/omit-if-no-ref/
i2c2_1_cfg: i2c2-1-cfg {
i2c2-1-pins {
--
2.55.0