ARM: dts: dra72-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/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index abbaaa782f88092444d91d30579e5c5f949d9b45..afc74fd4bb5e829f1866cc450eaffa3ff618880f 100644 (file)
--- a/arch/arm/boot/dts/dra72-evm.dts
+++ b/arch/arm/boot/dts/dra72-evm.dts
@@ -105,6 +105,22 @@
                        0x98 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
                >;
        };
+
+       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 {
@@ -438,3 +454,10 @@
        pinctrl-1 = <&davinci_mdio_sleep>;
        active_slave = <1>;
 };
+
+&dcan1 {
+       status = "ok";
+       pinctrl-names = "default", "sleep";
+       pinctrl-0 = <&dcan1_pins_default>;
+       pinctrl-1 = <&dcan1_pins_sleep>;
+};