ARM: dts: am437x-gp: Add dcan support

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@ti.com>
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 2ffd6d6dcc87..bd8d932c591c 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 {
@@ -519,3 +533,15 @@
                 };
         };
 };
+
+&dcan0 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&dcan0_default>;
+        status = "okay";
+};
+
+&dcan1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&dcan1_default>;
+        status = "okay";
+};