system-user.dtsi

/*
 * write by Guoping Chen
 * 8th, June, 2024
 * add  L65 - L81： 	i2c@0 ...
 * 
 * add L180 - L183: 	enable usb3
 *
 *
*/

/include/ "system-conf.dtsi"
/ {
	/* 48MHz reference crystal */
	ref48: ref48M {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <48000000>;
	};
};

&sdhci1 {
	u-boot,dm-pre-reloc;
	non-removable;
	disable-wp;
	no-1-8-v; /* for 1.0 silicon */
	cap-sd-highspeed;
	sd-uhs-sdr12;
	sd-uhs-sdr25;
	sd-uhs-sdr50;
	sd-uhs-ddr50;
	keep-power-in-suspend;
	xlnx,mio_bank = <1>;
	};



&i2c0 {

	/* for U31 TCA6416A   */
	tca6416_u31: gpio@20 {	 /* address 0b100000 */
		compatible = "ti,tca6416";
		reg = <0x20>;
		gpio-controller; /* interrupt not connected */
		#gpio-cells = <2>;
		/*
		 * IRQ not connected
		 * Lines:
		 * 5 - IIC_MUX_RESET_B
		 * 6 - GEM3_EXP_RESET_B
		 * 11 - CLK_SPI_MUX_SEL0
		 * 12 - CLK_SPI_MUX_SEL1
		 * other - not connected
		 */
	};


};

&i2c1 {
	i2c-mux@75 { /* tca9548apwr  rfsoc27dr @u35 address = 0b1110101; zcu111 @u26 address = 0b1110100= 0x74*/
		compatible = "nxp,pca9548"; /* driver name is pca9548, chip name is tca9548 */
 		#address-cells = <1>;
		#size-cells = <0>;
		reg = <0x75>;
		i2c@0 { /* i2c mw 74 0 1 */
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <0>;
			/*
			 * IIC_EEPROM 1kB memory which uses 256B blocks
			 * where every block has different address.
			 *    0 - 256B address 0x54
			 * 256B - 512B address 0x55
			 * 512B - 768B address 0x56
			 * 768B - 1024B address 0x57
			 */
			eeprom: eeprom@54 { /* u88 */
				compatible = "at,24c08";
				reg = <0x54>;
			};
		};

		i2c@1 {
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <1>;
			si5341: clock-generator@76 { /* SI5341 rfsoc27dr @u23 address = 11101 A1 A0 = 1110110 = 0x76; zcu111 @u46 address =0x76*/
				compatible = "silabs,si5341";
				reg = <0x76>;
				#clock-cells = <2>;
				#address-cells = <1>;
				#size-cells = <0>;
				clocks = <&ref48>;
				clock-names = "xtal";
				clock-output-names = "si5341";

				si5341_0: out@0 {
					/* refclk0 for PS-GT, used for DP */
					reg = <0>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
				si5341_2: out@2 {
					/* refclk2 for PS-GT, used for USB3 */
					reg = <2>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
				si5341_3: out@3 {
					/* refclk3 for PS-GT, used for SATA */
					reg = <3>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
				si5341_5: out@5 {
					/* refclk5 PL CLK100 */
					reg = <5>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
				si5341_6: out@6 {
					/* refclk6 PL CLK125 */
					reg = <6>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
				si5341_9: out@9 {
					/* refclk9 used for PS_REF_CLK 33.3 MHz */
					reg = <9>;
					always-on; /* assigned-clocks does not enable, so do it here */
				};
			};

		};


		i2c@2 { /* rfsoc27dr@2; zcu111 @5 */
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <2>;
				sc18is603@2f { /* sc18is602 rfsoc27dr @u36 address = 101 A2 A1 A0 = 101111 = 0x2f; zcu111 @u93  address = 0x2f*/
					compatible = "nxp,sc18is602b";
					reg = <0x2f>;
					#address-cells = <0x1>;
					#size-cells = <0x0>;
					lmxC@0 {
							compatible = "ti,lmx2594";
							reg = <0x0>;
							spi-max-frequency = <400000>;
							num_bytes = <4>;
							};
					lmk@1 {
							compatible = "ti,lmk04208";
							reg = <0x1>;
							spi-max-frequency = <400000>;
							num_bytes = <4>;
							};
					lmxB@2 {
							compatible = "ti,lmx2594";
							reg = <0x2>;
							spi-max-frequency = <400000>;
							num_bytes = <4>;
							};
					lmxA@3 {
							compatible = "ti,lmx2594";
							reg = <0x3>;
							spi-max-frequency = <400000>;
							num_bytes = <4>;
							};
				};
		};

		/* i2c@3 PS_DDR4_SODIMM; i2c@4 sfp3; i2c@5 sfp2; i2c@6 sfp1; i2c@7 sfp0 */
	};


};


&psgtr {
	/* nc, dp, usb3, sata */
	clocks = <&si5341 0 0>, <&si5341 0 2>, <&si5341 0 3>;
	clock-names = "ref1", "ref2", "ref3";
};
/* enable usb3 */
&dwc3_0 {
	dr_mode = "host";
};