45 lines
1.6 KiB
Plaintext
45 lines
1.6 KiB
Plaintext
EEPROM / CSR SMBus-slave interface of IDT 89HPESx devices
|
|
|
|
Required properties:
|
|
- compatible : should be "<manufacturer>,<type>"
|
|
Basically there is only one manufacturer: idt, but some
|
|
compatible devices may be produced in future. Following devices
|
|
are supported: 89hpes8nt2, 89hpes12nt3, 89hpes24nt6ag2,
|
|
89hpes32nt8ag2, 89hpes32nt8bg2, 89hpes12nt12g2, 89hpes16nt16g2,
|
|
89hpes24nt24g2, 89hpes32nt24ag2, 89hpes32nt24bg2;
|
|
89hpes12n3, 89hpes12n3a, 89hpes24n3, 89hpes24n3a;
|
|
89hpes32h8, 89hpes32h8g2, 89hpes48h12, 89hpes48h12g2,
|
|
89hpes48h12ag2, 89hpes16h16, 89hpes22h16, 89hpes22h16g2,
|
|
89hpes34h16, 89hpes34h16g2, 89hpes64h16, 89hpes64h16g2,
|
|
89hpes64h16ag2;
|
|
89hpes12t3g2, 89hpes24t3g2, 89hpes16t4, 89hpes4t4g2,
|
|
89hpes10t4g2, 89hpes16t4g2, 89hpes16t4ag2, 89hpes5t5,
|
|
89hpes6t5, 89hpes8t5, 89hpes8t5a, 89hpes24t6, 89hpes6t6g2,
|
|
89hpes24t6g2, 89hpes16t7, 89hpes32t8, 89hpes32t8g2,
|
|
89hpes48t12, 89hpes48t12g2.
|
|
- reg : I2C address of the IDT 89HPESx device.
|
|
|
|
Optionally there can be EEPROM-compatible subnode:
|
|
- compatible: There are five EEPROM devices supported: 24c32, 24c64, 24c128,
|
|
24c256 and 24c512 differed by size.
|
|
- reg: Custom address of EEPROM device (If not specified IDT 89HPESx
|
|
(optional) device will try to communicate with EEPROM sited by default
|
|
address - 0x50)
|
|
- read-only : Parameterless property disables writes to the EEPROM
|
|
(optional)
|
|
|
|
Example:
|
|
idt@60 {
|
|
compatible = "idt,89hpes32nt8ag2";
|
|
reg = <0x74>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
eeprom@50 {
|
|
compatible = "onsemi,24c64";
|
|
reg = <0x50>;
|
|
read-only;
|
|
};
|
|
};
|
|
|