From: Mugunthan V N <mugunthanvnm@xxxxxx>
Add DCAN support for AM437x GP EVM with both DCAN instances.
[Roger Q] Updated output pin to not use pull up.
Signed-off-by: Mugunthan V N <mugunthanvnm@xxxxxx>
Signed-off-by: George Cherian <george.cherian@xxxxxx>
Signed-off-by: Sekhar Nori <nsekhar@xxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
arch/arm/boot/dts/am437x-gp-evm.dts | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index e7ac47f..58594fd 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -254,6 +254,20 @@
0x238 (PIN_OUTPUT_PULLUP | MUX_MODE7)
>;
};
+
+ dcan0_default: dcan0_default_pins {
+ pinctrl-single,pins = <
+ 0x178 (PIN_OUTPUT | MUX_MODE2) /* uart1_ctsn.d_can0_tx */
+ 0x17c (PIN_INPUT_PULLUP | MUX_MODE2) /* uart1_rtsn.d_can0_rx */
+ >;
+ };
+
+ dcan1_default: dcan1_default_pins {
+ pinctrl-single,pins = <
+ 0x180 (PIN_OUTPUT | MUX_MODE2) /* uart1_rxd.d_can1_tx */
+ 0x184 (PIN_INPUT_PULLUP | MUX_MODE2) /* uart1_txd.d_can1_rx */
+ >;
+ };
};
&i2c0 {
@@ -511,3 +525,15 @@
};
};
};
+
+&dcan0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcan0_default>;
+ status = "okay";
+};
+
+&dcan1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&dcan1_default>;
+ status = "okay";
+};
--
1.8.3.2
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