nmhw23: add EEPROM support

BugzID: 58739

arch/arm/dts/imx8_nmhw23.dts

@@ -86,6 +86,13 @@
 			>;
 		};
 
+		pinctrl_i2c3: i2c3_grp {
+			fsl,pins = <
+				SC_P_CSI_EN_ADMA_I2C3_SCL			0x00000060
+				SC_P_CSI_RESET_ADMA_I2C3_SDA			0x00000060
+			>;
+		};
+
 		pinctrl_lpuart0: lpuart0_grp {
 			fsl,pins = <
 				SC_P_UART0_RX_ADMA_UART0_RX			0x06000020
@@ -197,6 +204,20 @@
 	};
 };
 
+&i2c3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c64";
+		reg = <0x50>;
+		u-boot,i2c-offset-len = <2>;
+	};
+};
+
 &gpio0 {
 	status = "okay";
 };

configs/imx8_nmhw23_defconfig

@@ -17,11 +17,25 @@ CONFIG_CMD_CACHE=y
 CONFIG_DM_SERIAL=y
 CONFIG_FSL_LPUART=y
 CONFIG_OF_CONTROL=y
+
 CONFIG_DM_I2C=y
+CONFIG_DM_I2C_COMPAT=y
 CONFIG_SYS_I2C_IMX_LPI2C=y
 CONFIG_CMD_I2C=y
 CONFIG_I2C_MUX=y
 CONFIG_I2C_MUX_PCA954x=y
+CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
+CONFIG_I2C_DEFAULT_BUS_NUMBER=3
+CONFIG_I2C_EEPROM=y
+CONFIG_CMD_EEPROM=y
+CONFIG_SYS_I2C_EEPROM_BUS=3
+CONFIG_SYS_I2C_EEPROM_ADDR=0x50
+CONFIG_SYS_I2C_EEPROM_ADDR_LEN=2
+CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW=0
+CONFIG_SYS_EEPROM_SIZE=8192
+CONFIG_SYS_EEPROM_PAGE_WRITE_BITS=5
+CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS=5
+
 
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_IMX8=y

include/configs/imx8_nmhw23.h

@@ -271,6 +271,11 @@
 /* Serial */
 #define CONFIG_BAUDRATE			115200
 
+/* EEPROM */
+#define CONFIG_ID_EEPROM
+#define CONFIG_SYS_I2C_EEPROM_NXID
+#define CONFIG_SYS_EEPROM_BUS_NUM	3
+
 /* Monitor Command Prompt */
 #define CONFIG_HUSH_PARSER
 #define CONFIG_SYS_PROMPT_HUSH_PS2	"> "