ARM: dts: dra7-evm: Add CAN support

The board has 2 CAN ports but only the first one can be used.
Enable the first CAN port.

WAKEUP0 pin doesn't have INPUT enable bit so we just disable
weak PULLs.

The second CAN port cannot be used without hardware modification
so we don't enable the second port.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 0d8a3bd0f00daca89cd8d8e60cd56e2d84673e44..736092b1a535cdd566bd41856ad64a4583227b40 100644 (file)
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -251,6 +251,21 @@
                >;
        };
 
+       dcan1_pins_default: dcan1_pins_default {
+               pinctrl-single,pins = <
+                       0x3d0   (PIN_OUTPUT | MUX_MODE0) /* dcan1_tx */
+                       0x3d4   (MUX_MODE15)            /* dcan1_rx.off */
+                       0x418   (PULL_DIS | MUX_MODE1) /* wakeup0.dcan1_rx */
+               >;
+       };
+
+       dcan1_pins_sleep: dcan1_pins_sleep {
+               pinctrl-single,pins = <
+                       0x3d0   (MUX_MODE15)    /* dcan1_tx.off */
+                       0x3d4   (MUX_MODE15)    /* dcan1_rx.off */
+                       0x418   (MUX_MODE15)    /* wakeup0.off */
+               >;
+       };
 };
 
 &i2c1 {
@@ -639,3 +654,10 @@
        pinctrl-0 = <&davinci_mdio_default>;
        pinctrl-1 = <&davinci_mdio_sleep>;
 };
+
+&dcan1 {
+       status = "ok";
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&dcan1_pins_default>;
+       pinctrl-1 = <&dcan1_pins_sleep>;
+};