xref: /freebsd/sys/contrib/device-tree/Bindings/misc/idt_89hpesx.txt (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1EEPROM / CSR SMBus-slave interface of IDT 89HPESx devices
2
3Required properties:
4  - compatible : should be "<manufacturer>,<type>"
5		 Basically there is only one manufacturer: idt, but some
6		 compatible devices may be produced in future. Following devices
7		 are supported: 89hpes8nt2, 89hpes12nt3, 89hpes24nt6ag2,
8		 89hpes32nt8ag2, 89hpes32nt8bg2, 89hpes12nt12g2, 89hpes16nt16g2,
9		 89hpes24nt24g2, 89hpes32nt24ag2, 89hpes32nt24bg2;
10		 89hpes12n3, 89hpes12n3a, 89hpes24n3, 89hpes24n3a;
11		 89hpes32h8, 89hpes32h8g2, 89hpes48h12, 89hpes48h12g2,
12		 89hpes48h12ag2, 89hpes16h16, 89hpes22h16, 89hpes22h16g2,
13		 89hpes34h16, 89hpes34h16g2, 89hpes64h16, 89hpes64h16g2,
14		 89hpes64h16ag2;
15		 89hpes12t3g2, 89hpes24t3g2, 89hpes16t4, 89hpes4t4g2,
16		 89hpes10t4g2, 89hpes16t4g2, 89hpes16t4ag2, 89hpes5t5,
17		 89hpes6t5, 89hpes8t5, 89hpes8t5a, 89hpes24t6, 89hpes6t6g2,
18		 89hpes24t6g2, 89hpes16t7, 89hpes32t8, 89hpes32t8g2,
19		 89hpes48t12, 89hpes48t12g2.
20  - reg :	 I2C address of the IDT 89HPESx device.
21
22Optionally there can be EEPROM-compatible subnode:
23  - compatible:  There are five EEPROM devices supported: 24c32, 24c64, 24c128,
24		 24c256 and 24c512 differed by size.
25  - reg:         Custom address of EEPROM device (If not specified IDT 89HPESx
26    (optional)	 device will try to communicate with EEPROM sited by default
27		 address - 0x50)
28  - read-only :	 Parameterless property disables writes to the EEPROM
29    (optional)
30
31Example:
32	idt@60 {
33		compatible = "idt,89hpes32nt8ag2";
34		reg = <0x74>;
35		#address-cells = <1>;
36		#size-cells = <0>;
37
38		eeprom@50 {
39			compatible = "onsemi,24c64";
40			reg = <0x50>;
41			read-only;
42		};
43	};
44
45