[PATCH 03/14] arch: arm: dts: k3-j7200-som: Enable I2C

[Udit Kumar]

Upstream linux patch posted at
https://lore.kernel.org/all/20230419040007.3022780-3-u-kumar1@ti.com/


This patch enables wkup_i2c0 node in board dts file
along with pin mux and speed.
Also enables underneath eeprom CAV24C256WE.

J7200 Datasheet (Table 6-106, Section 6.4 Pin Multiplexing) :
https://www.ti.com/lit/ds/symlink/dra821u.pdf

J7200 User Guide (Section 4.3, Table 4-2) :
https://www.ti.com/lit/ug/spruiw7a/spruiw7a.pdf

Signed-off-by: Udit Kumar <u-kumar1 at ti.com>
---
 .../arm/dts/k3-j7200-r5-common-proc-board.dts |  7 -------
 arch/arm/dts/k3-j7200-som-p0.dtsi             | 21 +++++++++++++++++++
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
index e62f9218e8..9d9ffcbb89 100644
--- a/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j7200-r5-common-proc-board.dts
@@ -126,13 +126,6 @@
 		>;
 	};
 
-	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
-		pinctrl-single,pins = <
-			J721E_WKUP_IOPAD(0x100, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */
-			J721E_WKUP_IOPAD(0x104, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
-		>;
-	};
-
 	mcu_fss0_hpb0_pins_default: mcu-fss0-hpb0-pins-default {
 		pinctrl-single,pins = <
 			J721E_WKUP_IOPAD(0x0, PIN_OUTPUT, 1) /* (E20) MCU_OSPI0_CLK.MCU_HYPERBUS0_CK */
diff --git a/arch/arm/dts/k3-j7200-som-p0.dtsi b/arch/arm/dts/k3-j7200-som-p0.dtsi
index fa44ed4c17..2694241547 100644
--- a/arch/arm/dts/k3-j7200-som-p0.dtsi
+++ b/arch/arm/dts/k3-j7200-som-p0.dtsi
@@ -118,6 +118,15 @@
 	};
 };
 
+&wkup_pmx2 {
+	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
+			pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0x98, PIN_INPUT_PULLUP, 0) /* (F20) WKUP_I2C0_SCL */
+			J721E_WKUP_IOPAD(0x9c, PIN_INPUT_PULLUP, 0) /* (H21) WKUP_I2C0_SDA */
+		>;
+	};
+};
+
 &main_pmx0 {
 	main_i2c0_pins_default: main-i2c0-pins-default {
 		pinctrl-single,pins = <
@@ -214,6 +223,18 @@
 	};
 };
 
+&wkup_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&wkup_i2c0_pins_default>;
+	clock-frequency = <400000>;
+
+	eeprom at 50 {
+		compatible = "atmel,24c256";
+		reg = <0x50>;
+	};
+};
+
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
-- 
2.34.1