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authorRoger Quadros <rogerq@ti.com>2014-11-03 14:07:18 +0300
committerTony Lindgren <tony@atomide.com>2014-11-24 18:55:40 +0300
commitea95af3c168b2bb74b1cad0f45a4609ba929afa5 (patch)
tree155d4e7afe02c2807e96c476da9ec044e50530d4 /arch/arm/boot/dts/dra72-evm.dts
parentb41502e0a59f027775085982af1159446f612f95 (diff)
downloadlinux-ea95af3c168b2bb74b1cad0f45a4609ba929afa5.tar.xz
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>
Diffstat (limited to 'arch/arm/boot/dts/dra72-evm.dts')
-rw-r--r--arch/arm/boot/dts/dra72-evm.dts23
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/dra72-evm.dts b/arch/arm/boot/dts/dra72-evm.dts
index abbaaa782f88..afc74fd4bb5e 100644
--- 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>;
+};