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Wed, 22 Jul 2026 13:31:32 -0700 (PDT) From: Jennifer Berringer To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Jennifer Berringer Subject: [PATCH 2/2] riscv: dts: spacemit: k3-com260-ifx: add eeprom on i2c1 Date: Wed, 22 Jul 2026 16:28:48 -0400 Message-ID: <20260722202848.1817988-3-jberring@redhat.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260722202848.1817988-1-jberring@redhat.com> References: <20260722202848.1817988-1-jberring@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- 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 = , /* i2c1 scl */ + ; /* 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