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3 commits

Author SHA1 Message Date
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
Maxime Ripard
73aea285e3 w1: Add 1-Wire gpio driver 
Add a bus driver for bitbanging a 1-Wire bus over a GPIO.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[eugen.hristev@microchip.com: fixed some issues]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
 2018-09-28 20:22:34 -04:00
Maxime Ripard
d3e19cf919 w1: Add 1-Wire uclass 
We might want to use 1-Wire devices connected on boards such as EEPROMs in
U-Boot.

Provide a framework to be able to do that.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
[eugen.hristev@microchip.com: reworked]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
 2018-09-28 20:22:34 -04:00