mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
e6e5dd3566
Add initial support to the Broadcom iProc I2C controller found in the iProc family of SoCs. The iProc I2C controller has separate internal TX and RX FIFOs, each has a size of 64 bytes. The iProc I2C controller supports two bus speeds including standard mode (100kHz) and fast mode (400kHz) Signed-off-by: Ray Jui <rjui@broadcom.com> Reviewed-by: Scott Branden <sbranden@broadcom.com> Reviewed-by: Kevin Cernekee <cernekee@chromium.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
38 lines
719 B
Plaintext
38 lines
719 B
Plaintext
Broadcom iProc I2C controller
|
|
|
|
Required properties:
|
|
|
|
- compatible:
|
|
Must be "brcm,iproc-i2c"
|
|
|
|
- reg:
|
|
Define the base and range of the I/O address space that contain the iProc
|
|
I2C controller registers
|
|
|
|
- interrupts:
|
|
Should contain the I2C interrupt
|
|
|
|
- clock-frequency:
|
|
This is the I2C bus clock. Need to be either 100000 or 400000
|
|
|
|
- #address-cells:
|
|
Always 1 (for I2C addresses)
|
|
|
|
- #size-cells:
|
|
Always 0
|
|
|
|
Example:
|
|
i2c0: i2c@18008000 {
|
|
compatible = "brcm,iproc-i2c";
|
|
reg = <0x18008000 0x100>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
interrupts = <GIC_SPI 85 IRQ_TYPE_NONE>;
|
|
clock-frequency = <100000>;
|
|
|
|
codec: wm8750@1a {
|
|
compatible = "wlf,wm8750";
|
|
reg = <0x1a>;
|
|
};
|
|
};
|