@@ -51,6 +51,7 @@
serial0 = &scif0;
serial1 = &scifa1;
i2c8 = "i2cexio0";
+ i2c9 = "i2cexio1";
};
chosen {
@@ -270,6 +271,19 @@
#address-cells = <1>;
#size-cells = <0>;
};
+
+ /*
+ * IIC1/I2C1 is routed to EXIO connector A, pins 78 (SCL) + 80 (SDA).
+ * For further notes see i2cexio0.
+ */
+
+ i2cexio1: i2c-9 {
+ compatible = "i2c-demux-pinctrl";
+ i2c-parent = <&iic1>, <&i2c1>;
+ i2c-bus-name = "i2c-exio1";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
};
&du {
@@ -392,6 +406,11 @@
function = "iic0";
};
+ i2c1_pins: i2c1 {
+ groups = "i2c1";
+ function = "i2c1";
+ };
+
iic1_pins: iic1 {
groups = "iic1";
function = "iic1";
@@ -588,10 +607,14 @@
pinctrl-names = "i2c-exio0";
};
+&i2c1 {
+ pinctrl-0 = <&i2c1_pins>;
+ pinctrl-names = "i2c-exio1";
+};
+
&iic1 {
- status = "okay";
pinctrl-0 = <&iic1_pins>;
- pinctrl-names = "default";
+ pinctrl-names = "i2c-exio1";
};
&iic2 {
Make it possible to select which I2C1 IP core you want to run on the EXIO-A connector. This is based on reference work for the I2C0 core of the lager by Wolfram Sang. Cc: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> --- arch/arm/boot/dts/r8a7790-lager.dts | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-)