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>
diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig
index d6e0457..031bab2 100644
--- a/drivers/w1/Kconfig
+++ b/drivers/w1/Kconfig
@@ -20,6 +20,20 @@
help
Emulate a 1-wire bus using a GPIO.
+config W1_MXC
+ bool "Enable 1-wire controller on i.MX processors"
+ default no
+ depends on ARCH_MX25 || ARCH_MX31 || ARCH_MX5
+ help
+ Support the one wire controller found in some members of the NXP
+ i.MX SoC family.
+ There are currently two silicon variants:
+ V1: i.MX21, i.MX27, i.MX31, i.MX51
+ V2: i.MX25, i.MX35, i.MX50, i.MX53
+ Newer i.MX SoCs such as the i.MX6 do not have one wire controllers.
+
+ The driver supports both silicon variants.
+
endif
endmenu