u-boot/doc/device-tree-bindings/w1/mxc-w1.txt
Martin Fuzzey a2e99a71b2 w1: Add driver for i.MX bus master controller
Two variants of controllers are supported:
V1 (bitwise only) found in
	i.MX21, i.MX27, i.MX31, i.MX51
V2 (byte operations) found in
	i.MX25, i.MX35, i.MX50, i.MX53

Only tested on i.MX53 hardware but in both modes
(by modifying the device tree).

Signed-off-by: Martin Fuzzey <martin.fuzzey@flowbird.group>
2019-01-01 14:12:18 +01:00

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NXP i.MX (MXC) One wire bus master controller
=======================
Child nodes are required in device tree. The driver will detect
the devices serial number and then search in the child nodes in the device tree
for the proper node and try to match it with the device.
Also check doc/device-tree-bindings/w1-eeprom for possible child nodes drivers
Driver:
- drivers/w1/mxc_w1.c
Required properties:
- compatible : should be one of
"fsl,imx21-owire", "fsl,imx27-owire", "fsl,imx31-owire", "fsl,imx25-owire"
"fsl,imx25-owire", "fsl,imx35-owire", "fsl,imx50-owire", "fsl,imx53-owire"
- reg : Address and length of the register set for the device
Optional:
* none
Example:
onewire {
compatible = "fsl,imx53-owire";
reg = <0x63fa4000 0x4000>;
};
Example with child:
onewire {
compatible = "fsl,imx53-owire";
reg = <0x63fa4000 0x4000>;
eeprom1: eeprom@0 {
compatible = "maxim,ds24xxx";
};
};