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From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@gentoo.org>,
	Vivian Wang <wangruikang@iscas.ac.cn>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	"open list:RISC-V ARCHITECTURE" <linux-riscv@lists.infradead.org>,
	"open list:RISC-V SPACEMIT SoC Support"
	<spacemit@lists.linux.dev>
Subject: [PATCH v2 1/3] riscv: dts: spacemit: enable the i2c2 adapter on BPI-F3
Date: Tue, 23 Sep 2025 21:45:41 +0200	[thread overview]
Message-ID: <20250923205028.2355244-2-aurelien@aurel32.net> (raw)
In-Reply-To: <20250923205028.2355244-1-aurelien@aurel32.net>

Define properties for the I2C adapter, and enable it on the BPI-F3. It
will be used by the 24c02 eeprom.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
v2:
 - Rename i2c2-0-cfg and i2c2-0-pins into i2c2-4-cfg and i2c2-4-pins to
   match the naming convention encoding the function number in the
   second cell.

 arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts |  6 ++++++
 arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi    |  7 +++++++
 arch/riscv/boot/dts/spacemit/k1.dtsi            | 13 +++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
index 66375fd1e9974..7df7f2c547750 100644
--- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts
@@ -111,6 +111,12 @@ rgmii1: phy@1 {
 	};
 };
 
+&i2c2 {
+	pinctrl-0 = <&i2c2_4_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &i2c8 {
 	pinctrl-0 = <&i2c8_cfg>;
 	pinctrl-names = "default";
diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
index c9e9a844d2b1c..2a5e819160df2 100644
--- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
@@ -92,6 +92,13 @@ gmac1-pins {
 		};
 	};
 
+	i2c2_4_cfg: i2c2-4-cfg {
+		i2c2-4-pins {
+			pinmux = <K1_PADCONF(84, 4)>,	/* I2C2_SCL */
+				 <K1_PADCONF(85, 4)>;	/* I2C2_SDA */
+		};
+	};
+
 	i2c8_cfg: i2c8-cfg {
 		i2c8-0-pins {
 			pinmux = <K1_PADCONF(93, 0)>,	/* PWR_SCL */
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index bc61a380baca8..d4f38ded52c93 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -497,6 +497,19 @@ pwm7: pwm@d401bc00 {
 			status = "disabled";
 		};
 
+		i2c2: i2c@d4012000 {
+			compatible = "spacemit,k1-i2c";
+			reg = <0x0 0xd4012000 0x0 0x38>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&syscon_apbc CLK_TWSI2>,
+				 <&syscon_apbc CLK_TWSI2_BUS>;
+			clock-names = "func", "bus";
+			clock-frequency = <400000>;
+			interrupts = <38>;
+			status = "disabled";
+		};
+
 		i2c8: i2c@d401d800 {
 			compatible = "spacemit,k1-i2c";
 			reg = <0x0 0xd401d800 0x0 0x38>;
-- 
2.47.2


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  reply	other threads:[~2025-09-23 20:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-23 19:45 [PATCH v2 0/3] riscv: dts: spacemit: add 24c02 eeprom on BPI-F3 Aurelien Jarno
2025-09-23 19:45 ` Aurelien Jarno [this message]
2025-09-23 19:45 ` [PATCH v2 2/3] " Aurelien Jarno
2025-09-23 19:45 ` [PATCH v2 3/3] riscv: dts: spacemit: add i2c aliases " Aurelien Jarno

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