diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-ocores.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c index dee0352737d7..ef3bcb1ce864 100644 --- a/drivers/i2c/busses/i2c-ocores.c +++ b/drivers/i2c/busses/i2c-ocores.c @@ -9,6 +9,41 @@ * kind, whether express or implied. */ +/* + * Device tree configuration: + * + * Required properties: + * - compatible : "opencores,i2c-ocores" + * - reg : bus address start and address range size of device + * - interrupts : interrupt number + * - regstep : size of device registers in bytes + * - clock-frequency : frequency of bus clock in Hz + * + * Example: + * + * i2c0: ocores@a0000000 { + * compatible = "opencores,i2c-ocores"; + * reg = <0xa0000000 0x8>; + * interrupts = <10>; + * + * regstep = <1>; + * clock-frequency = <20000000>; + * + * -- Devices connected on this I2C bus get + * -- defined here; address- and size-cells + * -- apply to these child devices + * + * #address-cells = <1>; + * #size-cells = <0>; + * + * dummy@60 { + * compatible = "dummy"; + * reg = <60>; + * }; + * }; + * + */ + #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> |