1 * Synopsys DesignWare I2C
5 - compatible : should be "snps,designware-i2c"
6 or "mscc,ocelot-i2c" with "snps,designware-i2c" for fallback
7 - reg : Offset and length of the register set for the device
8 - interrupts : <IRQ> where IRQ is the interrupt number.
10 Recommended properties :
12 - clock-frequency : desired I2C bus clock frequency in Hz.
15 - reg : for "mscc,ocelot-i2c", a second register set to configure the SDA hold
16 time, named ICPU_CFG:TWI_DELAY in the datasheet.
18 - i2c-sda-hold-time-ns : should contain the SDA hold time in nanoseconds.
19 This option is only supported in hardware blocks version 1.11a or newer and
20 on Microsemi SoCs ("mscc,ocelot-i2c" compatible).
22 - i2c-scl-falling-time-ns : should contain the SCL falling time in nanoseconds.
23 This value which is by default 300ns is used to compute the tLOW period.
25 - i2c-sda-falling-time-ns : should contain the SDA falling time in nanoseconds.
26 This value which is by default 300ns is used to compute the tHIGH period.
33 compatible = "snps,designware-i2c";
34 reg = <0xf0000 0x1000>;
36 clock-frequency = <400000>;
42 compatible = "snps,designware-i2c";
43 reg = <0x1120000 0x1000>;
44 interrupt-parent = <&ictl>;
46 clock-frequency = <400000>;
47 i2c-sda-hold-time-ns = <300>;
48 i2c-sda-falling-time-ns = <300>;
49 i2c-scl-falling-time-ns = <300>;
56 clock-frequency = <400000>;
61 compatible = "linux,slave-24c02";